services4/system/$(TI_PLATFORM)/sysutils.c \
services4/system/$(TI_PLATFORM)/sysconfig.c \
+ifneq ($(FBDEV),no)
+EXTRA_CFLAGS += -DFBDEV_PRESENT
+endif
+
+
+ifeq ($(TI_PLATFORM),ti81xx)
+DRIFILES = services4/srvkm/env/linux/pvr_drm.c services4/3rdparty/dc_ti81xx_linux/omaplfb_linux.c services4/3rdparty/dc_ti81xx_linux/omaplfb_displayclass.c
+else
+DRIFILES = services4/srvkm/env/linux/pvr_drm.c services4/3rdparty/dc_omapfb3_linux/omaplfb_linux.c services4/3rdparty/dc_omapfb3_linux/omaplfb_displayclass.c
+endif
+
EXTRA_CFLAGS += -I$(src)/include4
EXTRA_CFLAGS += -I$(src)/services4/include
EXTRA_CFLAGS += -I$(src)/services4/srvkm/include
EXTRA_CFLAGS += -I$(src)/services4/system/$(TI_PLATFORM)
EXTRA_CFLAGS += -I$(src)/services4/srvkm/bridged/sgx
+
+ifeq ($(SUPPORT_XORG),1)
+EXTRA_CFLAGS += -I$(KERNELDIR)/include/drm
+EXTRA_CFLAGS += -I$(src)/services4/3rdparty/linux_drm
+EXTRA_CFLAGS += -I$(src)/services4/include/env/linux
+EXTRA_CFLAGS += -I$(KERNELDIR)/drivers/video/omap2
+EXTRA_CFLAGS += -I$(KERNELDIR)/arch/arm/plat-omap/include
+ifeq ($(TI_PLATFORM),omap4)
+EXTRA_CFLAGS += -DCONFIG_SLOW_WORK
+endif
+endif
+
EXTRA_CFLAGS += $(ALL_CFLAGS)
pvrsrvkm-y := $(FILES:.c=.o)
+ifeq ($(SUPPORT_XORG),1)
+pvrsrvkm-y += $(DRIFILES:.c=.o)
+endif
+
+ifneq ($(SUPPORT_XORG),1)
ifeq ($(TI_PLATFORM),ti81xx)
obj-y := services4/3rdparty/dc_ti81xx_linux/
else
-obj-y := services4/3rdparty/dc_omap3430_linux/
+obj-y := services4/3rdparty/dc_omapfb3_linux/
+endif
endif
obj-y += services4/3rdparty/bufferclass_ti/
+ifeq ($(SUPPORT_XORG),1)
+obj-y += services4/3rdparty/linux_drm/
+endif
endif
OPTIM = -Os
-
+ifeq ($(TI_PLATFORM),omap4)
+SGXCORE = 540
+else
SGXCORE = 530
+endif
+
+ifeq ($(TI_PLATFORM),omap4)
+CORE = -DSGX540 -DSUPPORT_SGX540 -DSGX_CORE_REV=120
+else
ifeq ($(TI_PLATFORM),ti81xx)
CORE = -DPLAT_TI81xx -DSGX530 -DSUPPORT_SGX530 -DSGX_CORE_REV=125
else
endif
endif
endif
+endif
SUPPORT_SGX = 1
SUPPORT_HW_RECOVERY = 1
PVR2D_ALT_2DHW = 1
LDM_PLATFORM ?= 1
+SUPPORT_XORG ?=0
+SUPPORT_DRI_DRM_NOT_PCI ?= 0
+
+ifeq ($(SUPPORT_XORG),1)
+SUPPORT_DRI_DRM = 1
+SUPPORT_DRI_DRM_NOT_PCI = 1
+endif
+
+
+ifeq ($(SUPPORT_DRI_DRM_NOT_PCI),1)
+KBUILD_EXTRA_SYMBOLS = `pwd`/services4/3rdparty/linux_drm/kbuild/Module.symvers
+endif
+
+SUPPORT_DRI_DRM ?= $(SUPPORT_XORG)
+SUPPORT_DRI_DRM_EXT ?= 0
+SUPPORT_DRI_DRM_NO_DROPMASTER ?= 0
+#SUPPORT_SECURE_DRM_AUTH_EXPORT ?= $(SUPPORT_XORG)
+
+SUPPORT_DRI_DRM_NO_LIBDRM ?= 0
+ifneq ($(SUPPORT_XORG),1)
+ifeq ($(SUPPORT_DRI_DRM),1)
+SUPPORT_DRI_DRM_NO_LIBDRM = 1
+endif
+endif
+
# Only enable active power management if passive power management is
# enabled, as indicated by LDM_PLATFORM being set to 1. On OMAP,
SUPPORT_ACTIVE_POWER_MANAGEMENT = 0
endif
+#if 0
+ifeq ($(LDM_PLATFORM),1)
+DISPLAY_CONTROLLER = omaplfb
+OMAP_NON_FLIP_DISPLAY = 0
+else
+DISPLAY_CONTROLLER = pvrlfb
+DISPLAY_CONTROLLER_DIR = 3rdparty/linux_framebuffer
+OMAP_NON_FLIP_DISPLAY = 1
+endif
+#endif
+
+
PVRSRV_MODNAME ?= pvrsrvkm
SYS_CFLAGS += -DPVRSRV_MODNAME="\"$(PVRSRV_MODNAME)"\"
+#ARCH_CFLAGS += -ftree-vectorize -mfpu=neon -mfloat-abi=hard
+ARCH_CFLAGS += -Wno-sign-conversion
export PVR_BUILD_DIR := $(shell pwd)
PVRSRV_DEBUG_OS_MEMORY ?= 0
endif
-SUPPORT_XORG ?= 0
ifneq ($(SUPPORT_XORG),1)
SUPPORT_XWS ?= 1
XWS_SERVER_ONLY ?= 0
SUPPORT_SECURE_FD_EXPORT ?= 0
endif
-
-
+SUPPORT_DRI_DRM_NO_LIBDRM ?= 0
TRANSFER_QUEUE ?= 1
SUPPORT_SGX_EVENT_OBJECT ?= 1
SUPPORT_SECURE_HANDLES = 1
-SUPPORT_SECURE_FD_EXPORT = 1
SUPPORT_SRVINIT = 1
SUPPORT_PERCONTEXT_PB = 1
DISABLE_SGX_PB_GROW_SHRINK ?= 1
SUPPORT_LINUX_X86_WRITECOMBINE ?=1
SUPPORT_SGX_LOW_LATENCY_SCHEDULING ?=1
+ifeq ($(SUPPORT_XORG),1)
+SUPPORT_PDUMP_MULTI_PROCESS = 1
+endif
+
+
SUPPORT_OMAP3430_SGXFCLK_96M ?= 0
SUPPORT_OMAP3430_OMAPFB3 ?= 0
SYS_CFLAGS.$(PVRSRV_CLIENT_RESET_ON_HWTIMEOUT) += -DPVRSRV_CLIENT_RESET_ON_HWTIMEOUT
SYS_CFLAGS.$(NO_HARDWARE) += -DNO_HARDWARE
+SYS_CFLAGS.$(SUPPORT_DRI_DRM) += -DSUPPORT_DRI_DRM
+SYS_CFLAGS.$(SUPPORT_DRI_DRM_EXT) += -DSUPPORT_DRI_DRM_EXT
+SYS_CFLAGS.$(SUPPORT_DRI_DRM_NOT_PCI) += -DPVR_DRI_DRM_NOT_PCI
+SYS_CFLAGS.$(SUPPORT_DRI_DRM_NO_DROPMASTER) += -DSUPPORT_DRI_DRM_NO_DROPMASTER
+SYS_CFLAGS.$(SUPPORT_DRI_DRM_NO_LIBDRM) += -DSUPPORT_DRI_DRM_NO_LIBDRM
+SYS_CFLAGS.$(DRM_PVR_RESERVED_INTEL_ORDER) += -DDRM_PVR_RESERVED_INTEL_ORDER
+SYS_CFLAGS.$(DRM_PVR_USE_INTEL_FB) += -DDRM_PVR_USE_INTEL_FB
+
-SYS_CFLAGS.$(SUPPORT_DRI_DRM) += -DSUPPORT_DRI_DRM
-SYS_CFLAGS.$(SUPPORT_DRI_DRM_EXT) += -DSUPPORT_DRI_DRM_EXT
SYS_CFLAGS.$(SUPPORT_LIBDRM_LITE) += -DSUPPORT_LIBDRM_LITE
ifneq ("$(NO_HARDWARE)", "1")
SYS_CFLAGS.$(SUPPORT_LINUX_USING_WORKQUEUES) += -DPVR_LINUX_USING_WORKQUEUES \
-DPVR_LINUX_MISR_USING_PRIVATE_WORKQUEUE \
-DPVR_LINUX_TIMERS_USING_WORKQUEUES \
- -DSYS_CUSTOM_POWERLOCK_WRAP
-
+ -DSYS_CUSTOM_POWERLOCK_WRAP \
+ -DPVR_NO_FULL_CACHE_OPS \
+ -DSGX_CLK_CORE_DIV5
SYS_CFLAGS.$(SUPPORT_SGX_NEW_STATUS_VALS) += -DSUPPORT_SGX_NEW_STATUS_VALS
$(SYS_CFLAGS) $(SYS_CFLAGS.1) \
$(MODULE_CFLAGS) $(MODULE_CFLAGS.$(BUILD)) \
$(CORE) -fno-strict-aliasing -Wno-pointer-arith \
- $(CFLAGS)
+ $(CFLAGS) $(ARCH_CFLAGS)
+ifdef SUPPORT_DRI_DRM_NO_TTM
+export SUPPORT_DRI_DRM_NO_TTM
+endif
all:
$(MAKE) -C $(KERNELDIR) M=`pwd` $*
# Linux kernel defines
#
+ifneq ($(NO_KERNEL_MODULES),1)
KERNEL_VER = $(shell grep "^VERSION = " \
$(KERNELDIR)/Makefile | $(CUT) -f3 -d' ')
KERNEL_REL = $(shell grep "^PATCHLEVEL = " \
$(CUT) -f3 -d' ' | \
$(SED) s/\"//g)
+KM_SUFFIX = ko
+
ifeq ("$(KERNEL_ID)", "")
# For Linux 2.6.33, the above method of finding the KERNEL ID no longer
# works, as UTS_RELEASE is no longer defined anywhere.
KERNEL_ID := $(KERNELVERSION)$(KERNEL_EXTRAVER)
endif
+endif # !NO_KERNEL_MODULES
# Get checksum from env variables
#
ENV_CHECKSUM = $(shell echo $(ALL_CFLAGS_$(MODSUFFIX)) | $(MD5SUM) - | $(CUT) -d' ' -f 1)
-# Linux kernel defines
-#
-ifeq ("$(KERNEL_VER)", "2")
-ifeq ("$(KERNEL_REL)", "6")
-KM_SUFFIX = ko
-else
-KM_SUFFIX = o
-CFLAGS_.o += -DEXPORT_SYMTAB $(CFLAGS_.ko)
-endif
-else
-KM_SUFFIX = o
-endif
-
# The standard CFLAGS macro can be overridden on the 'make' command line. We
# put CBUILD in a separate macro so its setting doesn't get lost when a user
# *does* override CFLAGS.
SUPPORT_SECURE_HANDLES = 1
SUPPORT_SRVINIT = 1
SUPPORT_PERCONTEXT_PB = 1
-DISABLE_SGX_PB_GROW_SHRINK ?= 0
+DISABLE_SGX_PB_GROW_SHRINK ?= 1
SUPPORT_LINUX_X86_PAT ?=1
SUPPORT_LINUX_X86_WRITECOMBINE ?=1
SUPPORT_SGX_LOW_LATENCY_SCHEDULING ?=1
SYS_INCLUDES = -I$(EURASIAROOT)/include4 \
-I$(EURASIAROOT)/eurasiacon/includeext \
- -I$(SYSBIN) \
- -isystem $(KERNELDIR)/include
+ -I$(SYSBIN)
+ifneq ($(NO_KERNEL_MODULES),1)
+SYS_INCLUDES += -isystem $(KERNELDIR)/include
+endif
ALL_CFLAGS_kbuild = $(CCFLAGS_KERNEL) -DLINUX \
endif
# If we do not specify direst path to external 3pdd sources, use tarball
+EXTERNAL_3PDD_TARBALL_PATH :=
ifeq ($(MRST_DRIVER_SOURCE),)
-EXTERNAL_3PDD_TARBALL_PATH = $(EURASIAROOT)/eurasiacon/external/$(EXTERNAL_3PDD_TARBALL)
+ifneq ($(EXTERNAL_3PDD_TARBALL),)
+EXTERNAL_3PDD_TARBALL_PATH := $(EURASIAROOT)/eurasiacon/external/$(EXTERNAL_3PDD_TARBALL)
export EXTERNAL_3PDD_TARBALL_PATH
endif
+endif
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+#
+
+include ../../kbuild/Makefile.kbuild
+
+EXTRA_SUBDIRS =
+
+ifneq ($(SUPPORT_DRI_DRM),1)
+EXTRA_SUBDIRS += $(EURASIAROOT)/services4/$(DISPLAY_CONTROLLER_DIR)
+endif
+
+EXTRA_SUBDIRS += $(EURASIAROOT)/services4/3rdparty/bufferclass_example
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+
+CORE = -DSGX$(SGXCORE) -DSUPPORT_SGX$(SGXCORE)
+
+ifeq ("$(SGXCOREREV)","")
+ifeq ("$(SGXCORE)","540")
+CORE += -DSGX_CORE_REV=110
+else
+CORE += -DUSE_SGX_CORE_REV_HEAD
+endif
+else
+CORE += -DSGX_CORE_REV=$(SGXCOREREV)
+endif
+
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+
+# Tool chain and cross-compile settings. gcc must be in the path.
+#
+CROSS_COMPILE ?= arm-none-linux-gnueabi-
+TOOLCHAIN ?= $(shell dirname $(shell which $(CROSS_COMPILE)gcc))/../
+OBJCOPYFORMAT = elf32-littlearm
+
+CROSSPLATFORM_PATHS =
+CROSSPLATFORM_LIBS =-ldl
+
+SYS_EXE_LDFLAGS = -Xlinker -rpath-link=$(TOOLCHAIN)/arm-none-linux-gnueabi/lib
+
+# Cross-compile extra settings.
+#
+PVR_SYSTEM = omap4
+
+ARCH_CFLAGS = -march=armv7-a
+
+# SYS_FLAGS contains any flags specific to this system
+SYS_CFLAGS = -DSGX_DYNAMIC_TIMING_INFO \
+ -DSYS_CUSTOM_POWERLOCK_WRAP \
+ -DPVR_NO_FULL_CACHE_OPS \
+ -DSGX_CLK_CORE_DIV5
+
+# The version of the kernel that is required for compilation
+REQUIREDKERNELVERSION = 2.6.33
+
+LDM_PLATFORM ?= 1
+
+# Only enable active power management if passive power management is
+# enabled, as indicated by LDM_PLATFORM being set to 1. On OMAP,
+# the system can suspend in the case where active power management is
+# enabled in the SGX driver, but passive power management isn't. As
+# passive power management isn't enabled, the driver won't see the
+# system suspend/resume events, and so won't take appropriate action.
+ifeq ($(LDM_PLATFORM),1)
+SUPPORT_ACTIVE_POWER_MANAGEMENT ?= 1
+SUPPORT_LINUX_USING_WORKQUEUES = 1
+DISPLAY_CONTROLLER = omaplfb
+DISPLAY_CONTROLLER_DIR = 3rdparty/dc_omapfb3_linux
+OMAP_NON_FLIP_DISPLAY = 0
+else
+SUPPORT_ACTIVE_POWER_MANAGEMENT = 0
+SUPPORT_LINUX_USING_SHARED_WORKQUEUES = 1
+DISPLAY_CONTROLLER = pvrlfb
+DISPLAY_CONTROLLER_DIR = 3rdparty/linux_framebuffer
+OMAP_NON_FLIP_DISPLAY = 1
+endif
+
+#
+# OPTIM contains the optimisation level in timing and release builds
+OPTIM = -Os
+
+SGXCORE = 540
+SUPPORT_SGX = 1
+
+SUPPORT_HW_RECOVERY = 1
+SUPPORT_SGX_HWPERF = 1
+SYS_USING_INTERRUPTS = 1
+
+PVR2D_ALT_2DHW = 1
+
+ifeq ($(SUPPORT_XORG),1)
+SUPPORT_DRI_DRM = 1
+SUPPORT_DRI_DRM_NOT_PCI = 1
+endif
#define PVRVERSION_MAJ 1
#define PVRVERSION_MIN 6
#define PVRVERSION_BRANCH 16
-#define PVRVERSION_BUILD 3977
-#define PVRVERSION_STRING "1.6.16.3977"
+#define PVRVERSION_BUILD 4117
+#define PVRVERSION_STRING "1.6.16.4117"
#define PVRVERSION_FILE "eurasiacon.pj"
#endif
} PVRSRV_CURSOR_INFO;
+#if defined(PDUMP_SUSPEND_IS_PER_THREAD)
+typedef struct {
+ IMG_UINT32 threadId;
+ int suspendCount;
+} PVRSRV_THREAD_SUSPEND_COUNT;
+
+#define PVRSRV_PDUMP_SUSPEND_Q_NAME "PVRSRVPDumpSuspendMsgQ"
+#define PVRSRV_PDUMP_SUSPEND_Q_LENGTH 8
+
+#endif
typedef struct _PVRSRV_REGISTRY_INFO_
{
static int bc_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg);
#else
-static int bc_ioctl(struct file *file,
+static long bc_ioctl(struct file *file,
unsigned int cmd, unsigned long arg);
#endif
static int bc_mmap(struct file *filp, struct vm_area_struct *vma);
OPEN_FXN(9)
#endif
-static PVRSRV_ERROR CloseBCDevice(IMG_HANDLE hDevice)
+static PVRSRV_ERROR CloseBCDevice(IMG_UINT32 handle , IMG_HANDLE hDevice)
{
PVR_UNREFERENCED_PARAMETER(hDevice);
pixel_fmt = PVRSRV_PIXEL_FORMAT_FOURCC_ORG_YUYV;
stride = p->width << 1;
break;
+
+ case BC_PIX_FMT_ARGB:
+ pixel_fmt = PVRSRV_PIXEL_FORMAT_ARGB8888;
+ stride = p->width << 2;
+ break;
+
default:
return -EINVAL;
break;
static int bc_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
#else
-static int bc_ioctl(struct file *file,
+static long bc_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
#endif
{
#define BC_PIX_FMT_UYVY BC_FOURCC('U', 'Y', 'V', 'Y') /*YUV 4:2:2*/
#define BC_PIX_FMT_YUYV BC_FOURCC('Y', 'U', 'Y', 'V') /*YUV 4:2:2*/
#define BC_PIX_FMT_RGB565 BC_FOURCC('R', 'G', 'B', 'P') /*RGB 5:6:5*/
+#define BC_PIX_FMT_ARGB BC_FOURCC('A', 'R', 'G', 'B') /*ARGB 8:8:8:8*/
enum BC_memory {
BC_MEMORY_MMAP = 1,
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#ifndef __3RDPARTY_DC_DRM_SHARED_H__
+#define __3RDPARTY_DC_DRM_SHARED_H__
+#if defined(SUPPORT_DRI_DRM)
+
+#define PVR_DRM_DISP_CMD_ENTER_VT 1
+#define PVR_DRM_DISP_CMD_LEAVE_VT 2
+
+#define PVR_DRM_DISP_CMD_ON 3
+#define PVR_DRM_DISP_CMD_STANDBY 4
+#define PVR_DRM_DISP_CMD_SUSPEND 5
+#define PVR_DRM_DISP_CMD_OFF 6
+
+#define PVR_DRM_DISP_ARG_CMD 0
+#define PVR_DRM_DISP_ARG_DEV 1
+#define PVR_DRM_DISP_NUM_ARGS 2
+
+#endif
+#endif
+
--- /dev/null
+SYS_USING_INTERRUPTS = 1
+SUPPORT_OMAP3430_OMAPFB3 =1
+SUPPORT_TI_DSS_FW = 0
+PVR_LINUX_USING_WORKQUEUES = 1
+SYS_CFLAGS.$(SYS_USING_INTERRUPTS) += -DSYS_USING_INTERRUPTS
+SYS_CFLAGS.$(SUPPORT_OMAP3430_OMAPFB3) += -DSUPPORT_OMAP3430_OMAPFB3
+SYS_CFLAGS.$(SUPPORT_TI_DSS_FW) += -DSUPPORT_TI_DSS_FW
+SYS_CFLAGS.$(PVR_LINUX_USING_WORKQUEUES) += -DPVR_LINUX_USING_WORKQUEUES
+SYS_CFLAGS += -DDISPLAY_CONTROLLER=omaplfb
+
+
+EXTRA_CFLAGS = -DLINUX \
+ -I$(PVR_BUILD_DIR)/include4 \
+ -I$(PVR_BUILD_DIR)/services4/include \
+ -I$(PVR_BUILD_DIR)/services4/system/$(PVR_SYSTEM) \
+ -I$(PVR_BUILD_DIR)/services4/srvkm/env/linux \
+ -I$(PVR_BUILD_DIR)/services4/include/env/linux \
+ -I$(PVR_BUILD_DIR)/services4/system/include \
+ -I$(KERNELDIR)/drivers/video/omap2 \
+ -I$(KERNELDIR)/arch/arm/plat-omap/include \
+ $(SYS_CFLAGS.1) \
+
+ifeq ($(SUPPORT_XORG),1)
+EXTRA_CFLAGS += -DSUPPORT_DRI_DRM
+EXTRA_CFLAGS += -DPVR_DISPLAY_CONTROLLER_DRM_IOCTL
+endif
+
+obj-m := omaplfb.o
+omaplfb-y := omaplfb_displayclass.o omaplfb_linux.o
# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
#
#
-#
-
-include $(EURASIAROOT)/eurasiacon/build/linux/kbuild/Makefile.kbuild_subdir_common
-MODULE = omaplfb
+MODULE = $(DISPLAY_CONTROLLER)
-INCLUDES = -I$(EURASIAROOT)/include4 \
- -I$(EURASIAROOT)/services4/include \
- -I$(EURASIAROOT)/services4/system/$(PVR_SYSTEM) \
- -I$(EURASIAROOT)/services4/system/include \
+INCLUDES =
-SOURCES = ../omaplfb_displayclass.c \
- ../omaplfb_linux.c
+SOURCES =
SYM_VERS_DEPS = $(EURASIAROOT)/services4/srvkm/env/linux
+include $(EURASIAROOT)/services4/$(DISPLAY_CONTROLLER_DIR)/makefile.linux.common
-
-
+include $(EURASIAROOT)/eurasiacon/build/linux/kbuild/Makefile.kbuild_subdir_common
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+#
+
+ifeq ($(SUPPORT_DRI_DRM),1)
+DISPLAY_CONTROLLER_SOURCES_ROOT = $(KBUILDROOT)/$(DISPLAY_CONTROLLER_DIR)
+MODULE_CFLAGS += -DPVR_DISPLAY_CONTROLLER_DRM_IOCTL
+else
+DISPLAY_CONTROLLER_SOURCES_ROOT = ..
+endif
+
+INCLUDES += -I$(EURASIAROOT)/include4 \
+ -I$(EURASIAROOT)/services4/include \
+ -I$(EURASIAROOT)/services4/system/$(PVR_SYSTEM) \
+ -I$(EURASIAROOT)/services4/system/include \
+ -I$(KERNELDIR)/drivers/video/omap2 \
+ -I$(KERNELDIR)/arch/arm/plat-omap/include
+
+SOURCES += $(DISPLAY_CONTROLLER_SOURCES_ROOT)/omaplfb_displayclass.c \
+ $(DISPLAY_CONTROLLER_SOURCES_ROOT)/omaplfb_linux.c
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#ifndef __OMAPLFB_H__
+#define __OMAPLFB_H__
+
+#include <linux/version.h>
+
+#include <asm/atomic.h>
+
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/notifier.h>
+#include <linux/mutex.h>
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+
+#define unref__ __attribute__ ((unused))
+
+typedef void * OMAPLFB_HANDLE;
+
+typedef bool OMAPLFB_BOOL, *OMAPLFB_PBOOL;
+#define OMAPLFB_FALSE false
+#define OMAPLFB_TRUE true
+
+typedef atomic_t OMAPLFB_ATOMIC_BOOL;
+
+typedef atomic_t OMAPLFB_ATOMIC_INT;
+
+typedef struct OMAPLFB_BUFFER_TAG
+{
+ struct OMAPLFB_BUFFER_TAG *psNext;
+ struct OMAPLFB_DEVINFO_TAG *psDevInfo;
+
+ struct work_struct sWork;
+
+
+ unsigned long ulYOffset;
+
+
+
+ IMG_SYS_PHYADDR sSysAddr;
+ IMG_CPU_VIRTADDR sCPUVAddr;
+ PVRSRV_SYNC_DATA *psSyncData;
+
+ OMAPLFB_HANDLE hCmdComplete;
+ unsigned long ulSwapInterval;
+} OMAPLFB_BUFFER;
+
+typedef struct OMAPLFB_SWAPCHAIN_TAG
+{
+
+ unsigned int uiSwapChainID;
+
+
+ unsigned long ulBufferCount;
+
+
+ OMAPLFB_BUFFER *psBuffer;
+
+
+ struct workqueue_struct *psWorkQueue;
+
+
+ OMAPLFB_BOOL bNotVSynced;
+
+
+ int iBlankEvents;
+
+
+ unsigned int uiFBDevID;
+} OMAPLFB_SWAPCHAIN;
+
+typedef struct OMAPLFB_FBINFO_TAG
+{
+ unsigned long ulFBSize;
+ unsigned long ulBufferSize;
+ unsigned long ulRoundedBufferSize;
+ unsigned long ulWidth;
+ unsigned long ulHeight;
+ unsigned long ulByteStride;
+ unsigned long ulPhysicalWidthmm;
+ unsigned long ulPhysicalHeightmm;
+
+
+
+ IMG_SYS_PHYADDR sSysAddr;
+ IMG_CPU_VIRTADDR sCPUVAddr;
+
+
+ PVRSRV_PIXEL_FORMAT ePixelFormat;
+}OMAPLFB_FBINFO;
+
+typedef struct OMAPLFB_DEVINFO_TAG
+{
+
+ unsigned int uiFBDevID;
+
+
+ unsigned int uiPVRDevID;
+
+
+ struct mutex sCreateSwapChainMutex;
+
+
+ OMAPLFB_BUFFER sSystemBuffer;
+
+
+ PVRSRV_DC_DISP2SRV_KMJTABLE sPVRJTable;
+
+
+ PVRSRV_DC_SRV2DISP_KMJTABLE sDCJTable;
+
+
+ OMAPLFB_FBINFO sFBInfo;
+
+
+ OMAPLFB_SWAPCHAIN *psSwapChain;
+
+
+ unsigned int uiSwapChainID;
+
+
+ OMAPLFB_ATOMIC_BOOL sFlushCommands;
+
+
+ struct fb_info *psLINFBInfo;
+
+
+ struct notifier_block sLINNotifBlock;
+
+
+
+
+
+ IMG_DEV_VIRTADDR sDisplayDevVAddr;
+
+ DISPLAY_INFO sDisplayInfo;
+
+
+ DISPLAY_FORMAT sDisplayFormat;
+
+
+ DISPLAY_DIMS sDisplayDim;
+
+
+ OMAPLFB_ATOMIC_BOOL sBlanked;
+
+
+ OMAPLFB_ATOMIC_INT sBlankEvents;
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+
+ OMAPLFB_ATOMIC_BOOL sEarlySuspendFlag;
+
+ struct early_suspend sEarlySuspend;
+#endif
+
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFB_ATOMIC_BOOL sLeaveVT;
+#endif
+
+} OMAPLFB_DEVINFO;
+
+#define OMAPLFB_PAGE_SIZE 4096
+
+#ifdef DEBUG
+#define DEBUG_PRINTK(x) printk x
+#else
+#define DEBUG_PRINTK(x)
+#endif
+
+#define DISPLAY_DEVICE_NAME "PowerVR OMAP Linux Display Driver"
+#define DRVNAME "omaplfb"
+#define DEVNAME DRVNAME
+#define DRIVER_PREFIX DRVNAME
+
+typedef enum _OMAPLFB_ERROR_
+{
+ OMAPLFB_OK = 0,
+ OMAPLFB_ERROR_GENERIC = 1,
+ OMAPLFB_ERROR_OUT_OF_MEMORY = 2,
+ OMAPLFB_ERROR_TOO_FEW_BUFFERS = 3,
+ OMAPLFB_ERROR_INVALID_PARAMS = 4,
+ OMAPLFB_ERROR_INIT_FAILURE = 5,
+ OMAPLFB_ERROR_CANT_REGISTER_CALLBACK = 6,
+ OMAPLFB_ERROR_INVALID_DEVICE = 7,
+ OMAPLFB_ERROR_DEVICE_REGISTER_FAILED = 8,
+ OMAPLFB_ERROR_SET_UPDATE_MODE_FAILED = 9
+} OMAPLFB_ERROR;
+
+typedef enum _OMAPLFB_UPDATE_MODE_
+{
+ OMAPLFB_UPDATE_MODE_UNDEFINED = 0,
+ OMAPLFB_UPDATE_MODE_MANUAL = 1,
+ OMAPLFB_UPDATE_MODE_AUTO = 2,
+ OMAPLFB_UPDATE_MODE_DISABLED = 3
+} OMAPLFB_UPDATE_MODE;
+
+#ifndef UNREFERENCED_PARAMETER
+#define UNREFERENCED_PARAMETER(param) (param) = (param)
+#endif
+
+OMAPLFB_ERROR OMAPLFBInit(void);
+OMAPLFB_ERROR OMAPLFBDeInit(void);
+
+OMAPLFB_DEVINFO *OMAPLFBGetDevInfoPtr(unsigned uiFBDevID);
+unsigned OMAPLFBMaxFBDevIDPlusOne(void);
+void *OMAPLFBAllocKernelMem(unsigned long ulSize);
+void OMAPLFBFreeKernelMem(void *pvMem);
+OMAPLFB_ERROR OMAPLFBGetLibFuncAddr(char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable);
+OMAPLFB_ERROR OMAPLFBCreateSwapQueue (OMAPLFB_SWAPCHAIN *psSwapChain);
+void OMAPLFBDestroySwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain);
+void OMAPLFBInitBufferForSwap(OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBSwapHandler(OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBQueueBufferForSwap(OMAPLFB_SWAPCHAIN *psSwapChain, OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBFlip(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_BUFFER *psBuffer);
+OMAPLFB_UPDATE_MODE OMAPLFBGetUpdateMode(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBSetUpdateMode(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_UPDATE_MODE eMode);
+OMAPLFB_BOOL OMAPLFBWaitForVSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBManualSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBCheckModeAndSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBUnblankDisplay(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBEnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBDisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLockInit(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLockDeInit(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLock(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainUnLock(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBAtomicBoolInit(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal);
+void OMAPLFBAtomicBoolDeInit(OMAPLFB_ATOMIC_BOOL *psAtomic);
+void OMAPLFBAtomicBoolSet(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal);
+OMAPLFB_BOOL OMAPLFBAtomicBoolRead(OMAPLFB_ATOMIC_BOOL *psAtomic);
+void OMAPLFBAtomicIntInit(OMAPLFB_ATOMIC_INT *psAtomic, int iVal);
+void OMAPLFBAtomicIntDeInit(OMAPLFB_ATOMIC_INT *psAtomic);
+void OMAPLFBAtomicIntSet(OMAPLFB_ATOMIC_INT *psAtomic, int iVal);
+int OMAPLFBAtomicIntRead(OMAPLFB_ATOMIC_INT *psAtomic);
+void OMAPLFBAtomicIntInc(OMAPLFB_ATOMIC_INT *psAtomic);
+
+#endif
+
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/notifier.h>
+
+#include "img_defs.h"
+#include "servicesext.h"
+#include "kerneldisplay.h"
+#include "omaplfb.h"
+
+#define OMAPLFB_COMMAND_COUNT 1
+
+#define OMAPLFB_VSYNC_SETTLE_COUNT 5
+
+//#define OMAPLFB_MAX_NUM_DEVICES FB_MAX
+#define OMAPLFB_MAX_NUM_DEVICES 1
+
+#if (OMAPLFB_MAX_NUM_DEVICES > FB_MAX)
+#error "OMAPLFB_MAX_NUM_DEVICES must not be greater than FB_MAX"
+#endif
+
+static OMAPLFB_DEVINFO *gapsDevInfo[OMAPLFB_MAX_NUM_DEVICES];
+
+static PFN_DC_GET_PVRJTABLE gpfnGetPVRJTable = NULL;
+
+static inline unsigned long RoundUpToMultiple(unsigned long x, unsigned long y)
+{
+ unsigned long div = x / y;
+ unsigned long rem = x % y;
+
+ return (div + ((rem == 0) ? 0 : 1)) * y;
+}
+
+static unsigned long GCD(unsigned long x, unsigned long y)
+{
+ while (y != 0)
+ {
+ unsigned long r = x % y;
+ x = y;
+ y = r;
+ }
+
+ return x;
+}
+
+static unsigned long LCM(unsigned long x, unsigned long y)
+{
+ unsigned long gcd = GCD(x, y);
+
+ return (gcd == 0) ? 0 : ((x / gcd) * y);
+}
+
+unsigned OMAPLFBMaxFBDevIDPlusOne(void)
+{
+ return OMAPLFB_MAX_NUM_DEVICES;
+}
+
+OMAPLFB_DEVINFO *OMAPLFBGetDevInfoPtr(unsigned uiFBDevID)
+{
+ WARN_ON(uiFBDevID >= OMAPLFBMaxFBDevIDPlusOne());
+
+ if (uiFBDevID >= OMAPLFB_MAX_NUM_DEVICES)
+ {
+ return NULL;
+ }
+
+ return gapsDevInfo[uiFBDevID];
+}
+
+static inline void OMAPLFBSetDevInfoPtr(unsigned uiFBDevID, OMAPLFB_DEVINFO *psDevInfo)
+{
+ WARN_ON(uiFBDevID >= OMAPLFB_MAX_NUM_DEVICES);
+
+ if (uiFBDevID < OMAPLFB_MAX_NUM_DEVICES)
+ {
+ gapsDevInfo[uiFBDevID] = psDevInfo;
+ }
+}
+
+static inline OMAPLFB_BOOL SwapChainHasChanged(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_SWAPCHAIN *psSwapChain)
+{
+ return (psDevInfo->psSwapChain != psSwapChain) ||
+ (psDevInfo->uiSwapChainID != psSwapChain->uiSwapChainID);
+}
+
+static inline OMAPLFB_BOOL DontWaitForVSync(OMAPLFB_DEVINFO *psDevInfo)
+{
+ OMAPLFB_BOOL bDontWait;
+
+ bDontWait = OMAPLFBAtomicBoolRead(&psDevInfo->sBlanked) ||
+ OMAPLFBAtomicBoolRead(&psDevInfo->sFlushCommands);
+
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ bDontWait = bDontWait || OMAPLFBAtomicBoolRead(&psDevInfo->sEarlySuspendFlag);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ bDontWait = bDontWait || OMAPLFBAtomicBoolRead(&psDevInfo->sLeaveVT);
+#endif
+ return bDontWait;
+}
+
+static IMG_VOID SetDCState(IMG_HANDLE hDevice, IMG_UINT32 ui32State)
+{
+ OMAPLFB_DEVINFO *psDevInfo = (OMAPLFB_DEVINFO *)hDevice;
+
+ switch (ui32State)
+ {
+ case DC_STATE_FLUSH_COMMANDS:
+ OMAPLFBAtomicBoolSet(&psDevInfo->sFlushCommands, OMAPLFB_TRUE);
+ break;
+ case DC_STATE_NO_FLUSH_COMMANDS:
+ OMAPLFBAtomicBoolSet(&psDevInfo->sFlushCommands, OMAPLFB_FALSE);
+ break;
+ default:
+ break;
+ }
+}
+
+static PVRSRV_ERROR OpenDCDevice(IMG_UINT32 uiPVRDevID,
+ IMG_HANDLE *phDevice,
+ PVRSRV_SYNC_DATA* psSystemBufferSyncData)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_ERROR eError;
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+
+ for (i = 0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ psDevInfo = OMAPLFBGetDevInfoPtr(i);
+ if (psDevInfo != NULL && psDevInfo->uiPVRDevID == uiPVRDevID)
+ {
+ break;
+ }
+ }
+ if (i == uiMaxFBDevIDPlusOne)
+ {
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
+ ": %s: PVR Device %u not found\n", __FUNCTION__, uiPVRDevID));
+ return PVRSRV_ERROR_INVALID_DEVICE;
+ }
+
+
+ psDevInfo->sSystemBuffer.psSyncData = psSystemBufferSyncData;
+
+ eError = OMAPLFBUnblankDisplay(psDevInfo);
+ if (eError != OMAPLFB_OK)
+ {
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: OMAPLFBUnblankDisplay failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eError));
+ return PVRSRV_ERROR_UNBLANK_DISPLAY_FAILED;
+ }
+
+
+ *phDevice = (IMG_HANDLE)psDevInfo;
+
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR CloseDCDevice(IMG_HANDLE hDevice)
+{
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFB_DEVINFO *psDevInfo = (OMAPLFB_DEVINFO *)hDevice;
+
+ OMAPLFBAtomicBoolSet(&psDevInfo->sLeaveVT, OMAPLFB_FALSE);
+ (void) OMAPLFBUnblankDisplay(psDevInfo);
+#else
+ UNREFERENCED_PARAMETER(hDevice);
+#endif
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR EnumDCFormats(IMG_HANDLE hDevice,
+ IMG_UINT32 *pui32NumFormats,
+ DISPLAY_FORMAT *psFormat)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if(!hDevice || !pui32NumFormats)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ *pui32NumFormats = 1;
+
+ if(psFormat)
+ {
+ psFormat[0] = psDevInfo->sDisplayFormat;
+ }
+
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR EnumDCDims(IMG_HANDLE hDevice,
+ DISPLAY_FORMAT *psFormat,
+ IMG_UINT32 *pui32NumDims,
+ DISPLAY_DIMS *psDim)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if(!hDevice || !psFormat || !pui32NumDims)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ *pui32NumDims = 1;
+
+
+ if(psDim)
+ {
+ psDim[0] = psDevInfo->sDisplayDim;
+ }
+
+ return PVRSRV_OK;
+}
+
+
+static PVRSRV_ERROR GetDCSystemBuffer(IMG_HANDLE hDevice, IMG_HANDLE *phBuffer)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if(!hDevice || !phBuffer)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ *phBuffer = (IMG_HANDLE)&psDevInfo->sSystemBuffer;
+
+ return PVRSRV_OK;
+}
+
+
+static PVRSRV_ERROR GetDCInfo(IMG_HANDLE hDevice, DISPLAY_INFO *psDCInfo)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if(!hDevice || !psDCInfo)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ *psDCInfo = psDevInfo->sDisplayInfo;
+
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR GetDCBufferAddr(IMG_HANDLE hDevice,
+ IMG_HANDLE hBuffer,
+ IMG_SYS_PHYADDR **ppsSysAddr,
+ IMG_UINT32 *pui32ByteSize,
+ IMG_VOID **ppvCpuVAddr,
+ IMG_HANDLE *phOSMapInfo,
+ IMG_BOOL *pbIsContiguous,
+ IMG_UINT32 *pui32TilingStride)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_BUFFER *psSystemBuffer;
+
+ UNREFERENCED_PARAMETER(pui32TilingStride);
+
+ if(!hDevice)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ if(!hBuffer)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ if (!ppsSysAddr)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ if (!pui32ByteSize)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ psSystemBuffer = (OMAPLFB_BUFFER *)hBuffer;
+
+ *ppsSysAddr = &psSystemBuffer->sSysAddr;
+
+ *pui32ByteSize = (IMG_UINT32)psDevInfo->sFBInfo.ulBufferSize;
+
+ if (ppvCpuVAddr)
+ {
+ *ppvCpuVAddr = psSystemBuffer->sCPUVAddr;
+ }
+
+ if (phOSMapInfo)
+ {
+ *phOSMapInfo = (IMG_HANDLE)0;
+ }
+
+ if (pbIsContiguous)
+ {
+ *pbIsContiguous = IMG_TRUE;
+ }
+
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR CreateDCSwapChain(IMG_HANDLE hDevice,
+ IMG_UINT32 ui32Flags,
+ DISPLAY_SURF_ATTRIBUTES *psDstSurfAttrib,
+ DISPLAY_SURF_ATTRIBUTES *psSrcSurfAttrib,
+ IMG_UINT32 ui32BufferCount,
+ PVRSRV_SYNC_DATA **ppsSyncData,
+ IMG_UINT32 ui32OEMFlags,
+ IMG_HANDLE *phSwapChain,
+ IMG_UINT32 *pui32SwapChainID)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_SWAPCHAIN *psSwapChain;
+ OMAPLFB_BUFFER *psBuffer;
+ IMG_UINT32 i;
+ PVRSRV_ERROR eError;
+ IMG_UINT32 ui32BuffersToSkip;
+
+ UNREFERENCED_PARAMETER(ui32OEMFlags);
+
+
+ if(!hDevice
+ || !psDstSurfAttrib
+ || !psSrcSurfAttrib
+ || !ppsSyncData
+ || !phSwapChain)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+
+ if (psDevInfo->sDisplayInfo.ui32MaxSwapChains == 0)
+ {
+ return PVRSRV_ERROR_NOT_SUPPORTED;
+ }
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+
+ if(psDevInfo->psSwapChain != NULL)
+ {
+ eError = PVRSRV_ERROR_FLIP_CHAIN_EXISTS;
+ goto ExitUnLock;
+ }
+
+
+ if(ui32BufferCount > psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers)
+ {
+ eError = PVRSRV_ERROR_TOOMANYBUFFERS;
+ goto ExitUnLock;
+ }
+
+ if ((psDevInfo->sFBInfo.ulRoundedBufferSize * (unsigned long)ui32BufferCount) > psDevInfo->sFBInfo.ulFBSize)
+ {
+ eError = PVRSRV_ERROR_TOOMANYBUFFERS;
+ goto ExitUnLock;
+ }
+
+
+ ui32BuffersToSkip = psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers - ui32BufferCount;
+
+
+ if(psDstSurfAttrib->pixelformat != psDevInfo->sDisplayFormat.pixelformat
+ || psDstSurfAttrib->sDims.ui32ByteStride != psDevInfo->sDisplayDim.ui32ByteStride
+ || psDstSurfAttrib->sDims.ui32Width != psDevInfo->sDisplayDim.ui32Width
+ || psDstSurfAttrib->sDims.ui32Height != psDevInfo->sDisplayDim.ui32Height)
+ {
+
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
+ }
+
+ if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat
+ || psDstSurfAttrib->sDims.ui32ByteStride != psSrcSurfAttrib->sDims.ui32ByteStride
+ || psDstSurfAttrib->sDims.ui32Width != psSrcSurfAttrib->sDims.ui32Width
+ || psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height)
+ {
+
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
+ }
+
+
+ UNREFERENCED_PARAMETER(ui32Flags);
+
+#if defined(PVR_OMAPFB3_UPDATE_MODE)
+ if (!OMAPLFBSetUpdateMode(psDevInfo, PVR_OMAPFB3_UPDATE_MODE))
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't set frame buffer update mode %d\n", __FUNCTION__, psDevInfo->uiFBDevID, PVR_OMAPFB3_UPDATE_MODE);
+ }
+#endif
+
+ psSwapChain = (OMAPLFB_SWAPCHAIN*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_SWAPCHAIN));
+ if(!psSwapChain)
+ {
+ eError = PVRSRV_ERROR_OUT_OF_MEMORY;
+ goto ExitUnLock;
+ }
+
+ psBuffer = (OMAPLFB_BUFFER*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_BUFFER) * ui32BufferCount);
+ if(!psBuffer)
+ {
+ eError = PVRSRV_ERROR_OUT_OF_MEMORY;
+ goto ErrorFreeSwapChain;
+ }
+
+ psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount;
+ psSwapChain->psBuffer = psBuffer;
+ psSwapChain->bNotVSynced = OMAPLFB_TRUE;
+ psSwapChain->uiFBDevID = psDevInfo->uiFBDevID;
+
+
+ for(i=0; i<ui32BufferCount-1; i++)
+ {
+ psBuffer[i].psNext = &psBuffer[i+1];
+ }
+
+ psBuffer[i].psNext = &psBuffer[0];
+
+
+ for(i=0; i<ui32BufferCount; i++)
+ {
+ IMG_UINT32 ui32SwapBuffer = i + ui32BuffersToSkip;
+ IMG_UINT32 ui32BufferOffset = ui32SwapBuffer * (IMG_UINT32)psDevInfo->sFBInfo.ulRoundedBufferSize;
+
+ psBuffer[i].psSyncData = ppsSyncData[i];
+
+ psBuffer[i].sSysAddr.uiAddr = psDevInfo->sFBInfo.sSysAddr.uiAddr + ui32BufferOffset;
+ psBuffer[i].sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr + ui32BufferOffset;
+ psBuffer[i].ulYOffset = ui32BufferOffset / psDevInfo->sFBInfo.ulByteStride;
+ psBuffer[i].psDevInfo = psDevInfo;
+
+ OMAPLFBInitBufferForSwap(&psBuffer[i]);
+ }
+
+ if (OMAPLFBCreateSwapQueue(psSwapChain) != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Failed to create workqueue\n", __FUNCTION__, psDevInfo->uiFBDevID);
+ eError = PVRSRV_ERROR_UNABLE_TO_INSTALL_ISR;
+ goto ErrorFreeBuffers;
+ }
+
+ if (OMAPLFBEnableLFBEventNotification(psDevInfo)!= OMAPLFB_OK)
+ {
+ eError = PVRSRV_ERROR_UNABLE_TO_ENABLE_EVENT;
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't enable framebuffer event notification\n", __FUNCTION__, psDevInfo->uiFBDevID);
+ goto ErrorDestroySwapQueue;
+ }
+
+ psDevInfo->uiSwapChainID++;
+ if (psDevInfo->uiSwapChainID == 0)
+ {
+ psDevInfo->uiSwapChainID++;
+ }
+
+ psSwapChain->uiSwapChainID = psDevInfo->uiSwapChainID;
+
+ psDevInfo->psSwapChain = psSwapChain;
+
+ *pui32SwapChainID = psDevInfo->uiSwapChainID;
+
+ *phSwapChain = (IMG_HANDLE)psSwapChain;
+
+ eError = PVRSRV_OK;
+ goto ExitUnLock;
+
+ErrorDestroySwapQueue:
+ OMAPLFBDestroySwapQueue(psSwapChain);
+ErrorFreeBuffers:
+ OMAPLFBFreeKernelMem(psBuffer);
+ErrorFreeSwapChain:
+ OMAPLFBFreeKernelMem(psSwapChain);
+ExitUnLock:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+ return eError;
+}
+
+static PVRSRV_ERROR DestroyDCSwapChain(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_SWAPCHAIN *psSwapChain;
+ OMAPLFB_ERROR eError;
+
+
+ if(!hDevice || !hSwapChain)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+ psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: Swap chain mismatch\n", __FUNCTION__, psDevInfo->uiFBDevID);
+
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
+ }
+
+
+ OMAPLFBDestroySwapQueue(psSwapChain);
+
+ eError = OMAPLFBDisableLFBEventNotification(psDevInfo);
+ if (eError != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't disable framebuffer event notification\n", __FUNCTION__, psDevInfo->uiFBDevID);
+ }
+
+
+ OMAPLFBFreeKernelMem(psSwapChain->psBuffer);
+ OMAPLFBFreeKernelMem(psSwapChain);
+
+ psDevInfo->psSwapChain = NULL;
+
+ OMAPLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
+ (void) OMAPLFBCheckModeAndSync(psDevInfo);
+
+ eError = PVRSRV_OK;
+
+ExitUnLock:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ return eError;
+}
+
+static PVRSRV_ERROR SetDCDstRect(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain,
+ IMG_RECT *psRect)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
+ UNREFERENCED_PARAMETER(psRect);
+
+
+
+ return PVRSRV_ERROR_NOT_SUPPORTED;
+}
+
+static PVRSRV_ERROR SetDCSrcRect(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain,
+ IMG_RECT *psRect)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
+ UNREFERENCED_PARAMETER(psRect);
+
+
+
+ return PVRSRV_ERROR_NOT_SUPPORTED;
+}
+
+static PVRSRV_ERROR SetDCDstColourKey(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain,
+ IMG_UINT32 ui32CKColour)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
+ UNREFERENCED_PARAMETER(ui32CKColour);
+
+
+
+ return PVRSRV_ERROR_NOT_SUPPORTED;
+}
+
+static PVRSRV_ERROR SetDCSrcColourKey(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain,
+ IMG_UINT32 ui32CKColour)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
+ UNREFERENCED_PARAMETER(ui32CKColour);
+
+
+
+ return PVRSRV_ERROR_NOT_SUPPORTED;
+}
+
+static PVRSRV_ERROR GetDCBuffers(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain,
+ IMG_UINT32 *pui32BufferCount,
+ IMG_HANDLE *phBuffer)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_SWAPCHAIN *psSwapChain;
+ PVRSRV_ERROR eError;
+ unsigned i;
+
+
+ if(!hDevice
+ || !hSwapChain
+ || !pui32BufferCount
+ || !phBuffer)
+ {
+ return PVRSRV_ERROR_INVALID_PARAMS;
+ }
+
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+ psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: Swap chain mismatch\n", __FUNCTION__, psDevInfo->uiFBDevID);
+
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto Exit;
+ }
+
+
+ *pui32BufferCount = (IMG_UINT32)psSwapChain->ulBufferCount;
+
+
+ for(i=0; i<psSwapChain->ulBufferCount; i++)
+ {
+ phBuffer[i] = (IMG_HANDLE)&psSwapChain->psBuffer[i];
+ }
+
+ eError = PVRSRV_OK;
+
+Exit:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ return eError;
+}
+
+static PVRSRV_ERROR SwapToDCBuffer(IMG_HANDLE hDevice,
+ IMG_HANDLE hBuffer,
+ IMG_UINT32 ui32SwapInterval,
+ IMG_HANDLE hPrivateTag,
+ IMG_UINT32 ui32ClipRectCount,
+ IMG_RECT *psClipRect)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hBuffer);
+ UNREFERENCED_PARAMETER(ui32SwapInterval);
+ UNREFERENCED_PARAMETER(hPrivateTag);
+ UNREFERENCED_PARAMETER(ui32ClipRectCount);
+ UNREFERENCED_PARAMETER(psClipRect);
+
+
+
+ return PVRSRV_OK;
+}
+
+static PVRSRV_ERROR SwapToDCSystem(IMG_HANDLE hDevice,
+ IMG_HANDLE hSwapChain)
+{
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
+
+
+ return PVRSRV_OK;
+}
+
+static OMAPLFB_BOOL WaitForVSyncSettle(OMAPLFB_DEVINFO *psDevInfo)
+{
+ unsigned i;
+ for(i = 0; i < OMAPLFB_VSYNC_SETTLE_COUNT; i++)
+ {
+ if (DontWaitForVSync(psDevInfo) || !OMAPLFBWaitForVSync(psDevInfo))
+ {
+ return OMAPLFB_FALSE;
+ }
+ }
+
+ return OMAPLFB_TRUE;
+}
+
+void OMAPLFBSwapHandler(OMAPLFB_BUFFER *psBuffer)
+{
+ OMAPLFB_DEVINFO *psDevInfo = psBuffer->psDevInfo;
+ OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
+ OMAPLFB_BOOL bPreviouslyNotVSynced;
+
+#if defined(SUPPORT_DRI_DRM)
+ if (!OMAPLFBAtomicBoolRead(&psDevInfo->sLeaveVT))
+#endif
+ {
+ OMAPLFBFlip(psDevInfo, psBuffer);
+ }
+
+ bPreviouslyNotVSynced = psSwapChain->bNotVSynced;
+ psSwapChain->bNotVSynced = OMAPLFB_TRUE;
+
+
+ if (!DontWaitForVSync(psDevInfo))
+ {
+ OMAPLFB_UPDATE_MODE eMode = OMAPLFBGetUpdateMode(psDevInfo);
+ int iBlankEvents = OMAPLFBAtomicIntRead(&psDevInfo->sBlankEvents);
+
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ psSwapChain->bNotVSynced = OMAPLFB_FALSE;
+
+ if (bPreviouslyNotVSynced || psSwapChain->iBlankEvents != iBlankEvents)
+ {
+ psSwapChain->iBlankEvents = iBlankEvents;
+ psSwapChain->bNotVSynced = !WaitForVSyncSettle(psDevInfo);
+ } else if (psBuffer->ulSwapInterval != 0)
+ {
+ psSwapChain->bNotVSynced = !OMAPLFBWaitForVSync(psDevInfo);
+ }
+ break;
+#if defined(PVR_OMAPFB3_MANUAL_UPDATE_SYNC_IN_SWAP)
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ if (psBuffer->ulSwapInterval != 0)
+ {
+ (void) OMAPLFBManualSync(psDevInfo);
+ }
+ break;
+#endif
+ default:
+ break;
+ }
+ }
+
+ psDevInfo->sPVRJTable.pfnPVRSRVCmdComplete((IMG_HANDLE)psBuffer->hCmdComplete, IMG_TRUE);
+}
+
+static IMG_BOOL ProcessFlip(IMG_HANDLE hCmdCookie,
+ IMG_UINT32 ui32DataSize,
+ IMG_VOID *pvData)
+{
+ DISPLAYCLASS_FLIP_COMMAND *psFlipCmd;
+ OMAPLFB_DEVINFO *psDevInfo;
+ OMAPLFB_BUFFER *psBuffer;
+ OMAPLFB_SWAPCHAIN *psSwapChain;
+
+
+ if(!hCmdCookie || !pvData)
+ {
+ return IMG_FALSE;
+ }
+
+
+ psFlipCmd = (DISPLAYCLASS_FLIP_COMMAND*)pvData;
+
+ if (psFlipCmd == IMG_NULL || sizeof(DISPLAYCLASS_FLIP_COMMAND) != ui32DataSize)
+ {
+ return IMG_FALSE;
+ }
+
+
+ psDevInfo = (OMAPLFB_DEVINFO*)psFlipCmd->hExtDevice;
+ psBuffer = (OMAPLFB_BUFFER*)psFlipCmd->hExtBuffer;
+ psSwapChain = (OMAPLFB_SWAPCHAIN*) psFlipCmd->hExtSwapChain;
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
+ {
+
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u (PVR Device ID %u): The swap chain has been destroyed\n",
+ __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID));
+ }
+ else
+ {
+ psBuffer->hCmdComplete = (OMAPLFB_HANDLE)hCmdCookie;
+ psBuffer->ulSwapInterval = (unsigned long)psFlipCmd->ui32SwapInterval;
+
+ OMAPLFBQueueBufferForSwap(psSwapChain, psBuffer);
+ }
+
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ return IMG_TRUE;
+}
+
+
+static OMAPLFB_ERROR OMAPLFBInitFBDev(OMAPLFB_DEVINFO *psDevInfo)
+{
+ struct fb_info *psLINFBInfo;
+ struct module *psLINFBOwner;
+ OMAPLFB_FBINFO *psPVRFBInfo = &psDevInfo->sFBInfo;
+ OMAPLFB_ERROR eError = OMAPLFB_ERROR_GENERIC;
+ unsigned long FBSize;
+ unsigned long ulLCM;
+ unsigned uiFBDevID = psDevInfo->uiFBDevID;
+
+ acquire_console_sem();
+
+ psLINFBInfo = registered_fb[uiFBDevID];
+ if (psLINFBInfo == NULL)
+ {
+ eError = OMAPLFB_ERROR_INVALID_DEVICE;
+ goto ErrorRelSem;
+ }
+
+ FBSize = (psLINFBInfo->screen_size) != 0 ?
+ psLINFBInfo->screen_size :
+ psLINFBInfo->fix.smem_len;
+
+
+ if (FBSize == 0 || psLINFBInfo->fix.line_length == 0)
+ {
+ eError = OMAPLFB_ERROR_INVALID_DEVICE;
+ goto ErrorRelSem;
+ }
+
+ psLINFBOwner = psLINFBInfo->fbops->owner;
+ if (!try_module_get(psLINFBOwner))
+ {
+ printk(KERN_INFO DRIVER_PREFIX
+ ": %s: Device %u: Couldn't get framebuffer module\n", __FUNCTION__, uiFBDevID);
+
+ goto ErrorRelSem;
+ }
+
+ if (psLINFBInfo->fbops->fb_open != NULL)
+ {
+ int res;
+
+ res = psLINFBInfo->fbops->fb_open(psLINFBInfo, 0);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX
+ " %s: Device %u: Couldn't open framebuffer(%d)\n", __FUNCTION__, uiFBDevID, res);
+
+ goto ErrorModPut;
+ }
+ }
+
+ psDevInfo->psLINFBInfo = psLINFBInfo;
+
+ ulLCM = LCM(psLINFBInfo->fix.line_length, OMAPLFB_PAGE_SIZE);
+
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer physical address: 0x%lx\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->fix.smem_start));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer virtual address: 0x%lx\n",
+ psDevInfo->uiFBDevID, (unsigned long)psLINFBInfo->screen_base));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer size: %lu\n",
+ psDevInfo->uiFBDevID, FBSize));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer virtual width: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.xres_virtual));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer virtual height: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.yres_virtual));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer width: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.xres));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer height: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.yres));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Framebuffer stride: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->fix.line_length));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: LCM of stride and page size: %lu\n",
+ psDevInfo->uiFBDevID, ulLCM));
+
+
+ psPVRFBInfo->sSysAddr.uiAddr = psLINFBInfo->fix.smem_start;
+ psPVRFBInfo->sCPUVAddr = psLINFBInfo->screen_base;
+
+ psPVRFBInfo->ulWidth = psLINFBInfo->var.xres;
+ psPVRFBInfo->ulHeight = psLINFBInfo->var.yres;
+ psPVRFBInfo->ulByteStride = psLINFBInfo->fix.line_length;
+ psPVRFBInfo->ulFBSize = FBSize;
+ psPVRFBInfo->ulBufferSize = psPVRFBInfo->ulHeight * psPVRFBInfo->ulByteStride;
+
+ psPVRFBInfo->ulRoundedBufferSize = RoundUpToMultiple(psPVRFBInfo->ulBufferSize, ulLCM);
+
+ if(psLINFBInfo->var.bits_per_pixel == 16)
+ {
+ if((psLINFBInfo->var.red.length == 5) &&
+ (psLINFBInfo->var.green.length == 6) &&
+ (psLINFBInfo->var.blue.length == 5) &&
+ (psLINFBInfo->var.red.offset == 11) &&
+ (psLINFBInfo->var.green.offset == 5) &&
+ (psLINFBInfo->var.blue.offset == 0) &&
+ (psLINFBInfo->var.red.msb_right == 0))
+ {
+ psPVRFBInfo->ePixelFormat = PVRSRV_PIXEL_FORMAT_RGB565;
+ }
+ else
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
+ }
+ }
+ else if(psLINFBInfo->var.bits_per_pixel == 32)
+ {
+ if((psLINFBInfo->var.red.length == 8) &&
+ (psLINFBInfo->var.green.length == 8) &&
+ (psLINFBInfo->var.blue.length == 8) &&
+ (psLINFBInfo->var.red.offset == 16) &&
+ (psLINFBInfo->var.green.offset == 8) &&
+ (psLINFBInfo->var.blue.offset == 0) &&
+ (psLINFBInfo->var.red.msb_right == 0))
+ {
+ psPVRFBInfo->ePixelFormat = PVRSRV_PIXEL_FORMAT_ARGB8888;
+ }
+ else
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
+ }
+ }
+ else
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
+ }
+
+ psDevInfo->sFBInfo.ulPhysicalWidthmm =
+ ((int)psLINFBInfo->var.width > 0) ? psLINFBInfo->var.width : 90;
+
+ psDevInfo->sFBInfo.ulPhysicalHeightmm =
+ ((int)psLINFBInfo->var.height > 0) ? psLINFBInfo->var.height : 54;
+
+
+ psDevInfo->sFBInfo.sSysAddr.uiAddr = psPVRFBInfo->sSysAddr.uiAddr;
+ psDevInfo->sFBInfo.sCPUVAddr = psPVRFBInfo->sCPUVAddr;
+
+ eError = OMAPLFB_OK;
+ goto ErrorRelSem;
+
+ErrorModPut:
+ module_put(psLINFBOwner);
+ErrorRelSem:
+ release_console_sem();
+
+ return eError;
+}
+
+static void OMAPLFBDeInitFBDev(OMAPLFB_DEVINFO *psDevInfo)
+{
+ struct fb_info *psLINFBInfo = psDevInfo->psLINFBInfo;
+ struct module *psLINFBOwner;
+
+ acquire_console_sem();
+
+ psLINFBOwner = psLINFBInfo->fbops->owner;
+
+ if (psLINFBInfo->fbops->fb_release != NULL)
+ {
+ (void) psLINFBInfo->fbops->fb_release(psLINFBInfo, 0);
+ }
+
+ module_put(psLINFBOwner);
+
+ release_console_sem();
+}
+
+static OMAPLFB_DEVINFO *OMAPLFBInitDev(unsigned uiFBDevID)
+{
+ PFN_CMD_PROC pfnCmdProcList[OMAPLFB_COMMAND_COUNT];
+ IMG_UINT32 aui32SyncCountList[OMAPLFB_COMMAND_COUNT][2];
+ OMAPLFB_DEVINFO *psDevInfo = NULL;
+
+
+ psDevInfo = (OMAPLFB_DEVINFO *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_DEVINFO));
+
+ if(psDevInfo == NULL)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: Couldn't allocate device information structure\n", __FUNCTION__, uiFBDevID);
+
+ goto ErrorExit;
+ }
+
+
+ memset(psDevInfo, 0, sizeof(OMAPLFB_DEVINFO));
+
+ psDevInfo->uiFBDevID = uiFBDevID;
+
+
+ if(!(*gpfnGetPVRJTable)(&psDevInfo->sPVRJTable))
+ {
+ goto ErrorFreeDevInfo;
+ }
+
+
+ if(OMAPLFBInitFBDev(psDevInfo) != OMAPLFB_OK)
+ {
+
+ goto ErrorFreeDevInfo;
+ }
+
+ psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = (IMG_UINT32)(psDevInfo->sFBInfo.ulFBSize / psDevInfo->sFBInfo.ulRoundedBufferSize);
+ if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers != 0)
+ {
+ psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1;
+ psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 1;
+ }
+
+ psDevInfo->sDisplayInfo.ui32PhysicalWidthmm = psDevInfo->sFBInfo.ulPhysicalWidthmm;
+ psDevInfo->sDisplayInfo.ui32PhysicalHeightmm = psDevInfo->sFBInfo.ulPhysicalHeightmm;
+
+ strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
+
+ psDevInfo->sDisplayFormat.pixelformat = psDevInfo->sFBInfo.ePixelFormat;
+ psDevInfo->sDisplayDim.ui32Width = (IMG_UINT32)psDevInfo->sFBInfo.ulWidth;
+ psDevInfo->sDisplayDim.ui32Height = (IMG_UINT32)psDevInfo->sFBInfo.ulHeight;
+ psDevInfo->sDisplayDim.ui32ByteStride = (IMG_UINT32)psDevInfo->sFBInfo.ulByteStride;
+
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Maximum number of swap chain buffers: %u\n",
+ psDevInfo->uiFBDevID, psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers));
+
+
+ psDevInfo->sSystemBuffer.sSysAddr = psDevInfo->sFBInfo.sSysAddr;
+ psDevInfo->sSystemBuffer.sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr;
+ psDevInfo->sSystemBuffer.psDevInfo = psDevInfo;
+
+ OMAPLFBInitBufferForSwap(&psDevInfo->sSystemBuffer);
+
+
+
+ psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
+ psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
+ psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
+ psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
+ psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
+ psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
+ psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
+ psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
+ psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
+ psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
+ psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
+ psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
+ psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
+ psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
+ psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
+ psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
+ psDevInfo->sDCJTable.pfnSwapToDCSystem = SwapToDCSystem;
+ psDevInfo->sDCJTable.pfnSetDCState = SetDCState;
+
+
+ if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice(
+ &psDevInfo->sDCJTable,
+ &psDevInfo->uiPVRDevID) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Services device registration failed\n", __FUNCTION__, uiFBDevID);
+
+ goto ErrorDeInitFBDev;
+ }
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: PVR Device ID: %u\n",
+ psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID));
+
+
+ pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
+
+
+ aui32SyncCountList[DC_FLIP_COMMAND][0] = 0;
+ aui32SyncCountList[DC_FLIP_COMMAND][1] = 2;
+
+
+
+
+
+ if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList(psDevInfo->uiPVRDevID,
+ &pfnCmdProcList[0],
+ aui32SyncCountList,
+ OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: Couldn't register command processing functions with PVR Services\n", __FUNCTION__, uiFBDevID);
+ goto ErrorUnregisterDevice;
+ }
+
+ OMAPLFBCreateSwapChainLockInit(psDevInfo);
+
+ OMAPLFBAtomicBoolInit(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+ OMAPLFBAtomicIntInit(&psDevInfo->sBlankEvents, 0);
+ OMAPLFBAtomicBoolInit(&psDevInfo->sFlushCommands, OMAPLFB_FALSE);
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ OMAPLFBAtomicBoolInit(&psDevInfo->sEarlySuspendFlag, OMAPLFB_FALSE);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFBAtomicBoolInit(&psDevInfo->sLeaveVT, OMAPLFB_FALSE);
+#endif
+ return psDevInfo;
+
+ErrorUnregisterDevice:
+ (void)psDevInfo->sPVRJTable.pfnPVRSRVRemoveDCDevice(psDevInfo->uiPVRDevID);
+ErrorDeInitFBDev:
+ OMAPLFBDeInitFBDev(psDevInfo);
+ErrorFreeDevInfo:
+ OMAPLFBFreeKernelMem(psDevInfo);
+ErrorExit:
+ return NULL;
+}
+
+OMAPLFB_ERROR OMAPLFBInit(void)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+ unsigned uiDevicesFound = 0;
+
+ if(OMAPLFBGetLibFuncAddr ("PVRGetDisplayClassJTable", &gpfnGetPVRJTable) != OMAPLFB_OK)
+ {
+ return OMAPLFB_ERROR_INIT_FAILURE;
+ }
+
+
+ for(i = uiMaxFBDevIDPlusOne; i-- != 0;)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBInitDev(i);
+
+ if (psDevInfo != NULL)
+ {
+
+ OMAPLFBSetDevInfoPtr(psDevInfo->uiFBDevID, psDevInfo);
+ uiDevicesFound++;
+ }
+ }
+
+ return (uiDevicesFound != 0) ? OMAPLFB_OK : OMAPLFB_ERROR_INIT_FAILURE;
+}
+
+static OMAPLFB_BOOL OMAPLFBDeInitDev(OMAPLFB_DEVINFO *psDevInfo)
+{
+ PVRSRV_DC_DISP2SRV_KMJTABLE *psPVRJTable = &psDevInfo->sPVRJTable;
+
+ OMAPLFBCreateSwapChainLockDeInit(psDevInfo);
+
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sBlanked);
+ OMAPLFBAtomicIntDeInit(&psDevInfo->sBlankEvents);
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sFlushCommands);
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sEarlySuspendFlag);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sLeaveVT);
+#endif
+ psPVRJTable = &psDevInfo->sPVRJTable;
+
+ if (psPVRJTable->pfnPVRSRVRemoveCmdProcList (psDevInfo->uiPVRDevID, OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Device %u: Couldn't unregister command processing functions\n", __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID);
+ return OMAPLFB_FALSE;
+ }
+
+
+ if (psPVRJTable->pfnPVRSRVRemoveDCDevice(psDevInfo->uiPVRDevID) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Device %u: Couldn't remove device from PVR Services\n", __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID);
+ return OMAPLFB_FALSE;
+ }
+
+ OMAPLFBDeInitFBDev(psDevInfo);
+
+ OMAPLFBSetDevInfoPtr(psDevInfo->uiFBDevID, NULL);
+
+
+ OMAPLFBFreeKernelMem(psDevInfo);
+
+ return OMAPLFB_TRUE;
+}
+
+OMAPLFB_ERROR OMAPLFBDeInit(void)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+ OMAPLFB_BOOL bError = OMAPLFB_FALSE;
+
+ for(i = 0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
+
+ if (psDevInfo != NULL)
+ {
+ bError |= !OMAPLFBDeInitDev(psDevInfo);
+ }
+ }
+
+ return (bError) ? OMAPLFB_ERROR_INIT_FAILURE : OMAPLFB_OK;
+}
+
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+
+#include <linux/version.h>
+
+#include <asm/atomic.h>
+
+#if defined(SUPPORT_DRI_DRM)
+#include <drm/drmP.h>
+#else
+#include <linux/module.h>
+#endif
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/hardirq.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/omapfb.h>
+#include <linux/mutex.h>
+
+# include <plat/vrfb.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+#define PVR_OMAPFB3_NEEDS_PLAT_VRFB_H
+#endif
+
+#if defined(PVR_OMAPFB3_NEEDS_PLAT_VRFB_H)
+# include <plat/vrfb.h>
+#else
+# if defined(PVR_OMAPFB3_NEEDS_MACH_VRFB_H)
+# include <mach/vrfb.h>
+# endif
+#endif
+
+#if defined(DEBUG)
+#define PVR_DEBUG DEBUG
+#undef DEBUG
+#endif
+#include <omapfb/omapfb.h>
+#if defined(DEBUG)
+#undef DEBUG
+#endif
+#if defined(PVR_DEBUG)
+#define DEBUG PVR_DEBUG
+#undef PVR_DEBUG
+#endif
+
+#include "img_defs.h"
+#include "servicesext.h"
+#include "kerneldisplay.h"
+#include "omaplfb.h"
+#include "pvrmodule.h"
+#if defined(SUPPORT_DRI_DRM)
+#include "pvr_drm.h"
+#include "3rdparty_dc_drm_shared.h"
+#endif
+
+#if !defined(PVR_LINUX_USING_WORKQUEUES)
+#error "PVR_LINUX_USING_WORKQUEUES must be defined"
+#endif
+
+MODULE_SUPPORTED_DEVICE(DEVNAME);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+#define OMAP_DSS_DRIVER(drv, dev) struct omap_dss_driver *drv = (dev) != NULL ? (dev)->driver : NULL
+#define OMAP_DSS_MANAGER(man, dev) struct omap_overlay_manager *man = (dev) != NULL ? (dev)->manager : NULL
+#define WAIT_FOR_VSYNC(man) ((man)->wait_for_vsync)
+#else
+#define OMAP_DSS_DRIVER(drv, dev) struct omap_dss_device *drv = (dev)
+#define OMAP_DSS_MANAGER(man, dev) struct omap_dss_device *man = (dev)
+#define WAIT_FOR_VSYNC(man) ((man)->wait_vsync)
+#endif
+
+
+void *OMAPLFBAllocKernelMem(unsigned long ulSize)
+{
+ return kmalloc(ulSize, GFP_KERNEL);
+}
+
+void OMAPLFBFreeKernelMem(void *pvMem)
+{
+ kfree(pvMem);
+}
+
+void OMAPLFBCreateSwapChainLockInit(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_init(&psDevInfo->sCreateSwapChainMutex);
+}
+
+void OMAPLFBCreateSwapChainLockDeInit(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_destroy(&psDevInfo->sCreateSwapChainMutex);
+}
+
+void OMAPLFBCreateSwapChainLock(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_lock(&psDevInfo->sCreateSwapChainMutex);
+}
+
+void OMAPLFBCreateSwapChainUnLock(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_unlock(&psDevInfo->sCreateSwapChainMutex);
+}
+
+void OMAPLFBAtomicBoolInit(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal)
+{
+ atomic_set(psAtomic, (int)bVal);
+}
+
+void OMAPLFBAtomicBoolDeInit(OMAPLFB_ATOMIC_BOOL *psAtomic)
+{
+}
+
+void OMAPLFBAtomicBoolSet(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal)
+{
+ atomic_set(psAtomic, (int)bVal);
+}
+
+OMAPLFB_BOOL OMAPLFBAtomicBoolRead(OMAPLFB_ATOMIC_BOOL *psAtomic)
+{
+ return (OMAPLFB_BOOL)atomic_read(psAtomic);
+}
+
+void OMAPLFBAtomicIntInit(OMAPLFB_ATOMIC_INT *psAtomic, int iVal)
+{
+ atomic_set(psAtomic, iVal);
+}
+
+void OMAPLFBAtomicIntDeInit(OMAPLFB_ATOMIC_INT *psAtomic)
+{
+}
+
+void OMAPLFBAtomicIntSet(OMAPLFB_ATOMIC_INT *psAtomic, int iVal)
+{
+ atomic_set(psAtomic, iVal);
+}
+
+int OMAPLFBAtomicIntRead(OMAPLFB_ATOMIC_INT *psAtomic)
+{
+ return atomic_read(psAtomic);
+}
+
+void OMAPLFBAtomicIntInc(OMAPLFB_ATOMIC_INT *psAtomic)
+{
+ atomic_inc(psAtomic);
+}
+
+OMAPLFB_ERROR OMAPLFBGetLibFuncAddr (char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable)
+{
+ if(strcmp("PVRGetDisplayClassJTable", szFunctionName) != 0)
+ {
+ return (OMAPLFB_ERROR_INVALID_PARAMS);
+ }
+
+
+ *ppfnFuncTable = PVRGetDisplayClassJTable;
+
+ return (OMAPLFB_OK);
+}
+
+void OMAPLFBQueueBufferForSwap(OMAPLFB_SWAPCHAIN *psSwapChain, OMAPLFB_BUFFER *psBuffer)
+{
+ int res = queue_work(psSwapChain->psWorkQueue, &psBuffer->sWork);
+
+ if (res == 0)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Buffer already on work queue\n", __FUNCTION__, psSwapChain->uiFBDevID);
+ }
+}
+
+static void WorkQueueHandler(struct work_struct *psWork)
+{
+ OMAPLFB_BUFFER *psBuffer = container_of(psWork, OMAPLFB_BUFFER, sWork);
+
+ OMAPLFBSwapHandler(psBuffer);
+}
+
+OMAPLFB_ERROR OMAPLFBCreateSwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
+{
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34))
+ psSwapChain->psWorkQueue = __create_workqueue(DEVNAME, 1, 1, 1);
+#else
+ psSwapChain->psWorkQueue = create_workqueue(DEVNAME);
+#endif
+ if (psSwapChain->psWorkQueue == NULL)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: create_singlethreaded_workqueue failed\n", __FUNCTION__, psSwapChain->uiFBDevID);
+
+ return (OMAPLFB_ERROR_INIT_FAILURE);
+ }
+
+ return (OMAPLFB_OK);
+}
+
+void OMAPLFBInitBufferForSwap(OMAPLFB_BUFFER *psBuffer)
+{
+ INIT_WORK(&psBuffer->sWork, WorkQueueHandler);
+}
+
+void OMAPLFBDestroySwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
+{
+ destroy_workqueue(psSwapChain->psWorkQueue);
+}
+
+void OMAPLFBFlip(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_BUFFER *psBuffer)
+{
+ struct fb_var_screeninfo sFBVar;
+ int res;
+ unsigned long ulYResVirtual;
+
+ acquire_console_sem();
+
+ sFBVar = psDevInfo->psLINFBInfo->var;
+
+ sFBVar.xoffset = 0;
+ sFBVar.yoffset = psBuffer->ulYOffset;
+
+ ulYResVirtual = psBuffer->ulYOffset + sFBVar.yres;
+
+
+ if (sFBVar.xres_virtual != sFBVar.xres || sFBVar.yres_virtual < ulYResVirtual)
+ {
+ sFBVar.xres_virtual = sFBVar.xres;
+ sFBVar.yres_virtual = ulYResVirtual;
+
+ sFBVar.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
+
+ res = fb_set_var(psDevInfo->psLINFBInfo, &sFBVar);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: fb_set_var failed (Y Offset: %lu, Error: %d)\n", __FUNCTION__, psDevInfo->uiFBDevID, psBuffer->ulYOffset, res);
+ }
+ }
+ else
+ {
+ res = fb_pan_display(psDevInfo->psLINFBInfo, &sFBVar);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: fb_pan_display failed (Y Offset: %lu, Error: %d)\n", __FUNCTION__, psDevInfo->uiFBDevID, psBuffer->ulYOffset, res);
+ }
+ }
+
+ release_console_sem();
+}
+
+OMAPLFB_UPDATE_MODE OMAPLFBGetUpdateMode(OMAPLFB_DEVINFO *psDevInfo)
+{
+ struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+
+ enum omap_dss_update_mode eMode;
+
+ if (psDSSDrv == NULL || psDSSDrv->get_update_mode == NULL)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Can't get update mode\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ return OMAPLFB_UPDATE_MODE_UNDEFINED;
+ }
+
+ eMode = psDSSDrv->get_update_mode(psDSSDev);
+ switch(eMode)
+ {
+ case OMAP_DSS_UPDATE_AUTO:
+ return OMAPLFB_UPDATE_MODE_AUTO;
+ case OMAP_DSS_UPDATE_MANUAL:
+ return OMAPLFB_UPDATE_MODE_MANUAL;
+ case OMAP_DSS_UPDATE_DISABLED:
+ return OMAPLFB_UPDATE_MODE_DISABLED;
+ default:
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown update mode (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eMode));
+ break;
+ }
+
+ return OMAPLFB_UPDATE_MODE_UNDEFINED;
+//return OMAPLFB_UPDATE_MODE_AUTO;
+}
+
+OMAPLFB_BOOL OMAPLFBSetUpdateMode(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_UPDATE_MODE eMode)
+{
+ struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+ enum omap_dss_update_mode eDSSMode;
+ int res;
+
+ if (psDSSDrv == NULL || psDSSDrv->set_update_mode == NULL)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Can't set update mode\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ return OMAPLFB_FALSE;
+ }
+
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ eDSSMode = OMAP_DSS_UPDATE_AUTO;
+ break;
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ eDSSMode = OMAP_DSS_UPDATE_MANUAL;
+ break;
+ case OMAPLFB_UPDATE_MODE_DISABLED:
+ eDSSMode = OMAP_DSS_UPDATE_DISABLED;
+ break;
+ default:
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown update mode (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eMode));
+ return OMAPLFB_FALSE;
+ }
+
+ res = psDSSDrv->set_update_mode(psDSSDev, eDSSMode);
+ if (res != 0)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: set_update_mode failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res));
+ }
+
+ return (res == 0);
+//return 1;
+}
+
+OMAPLFB_BOOL OMAPLFBWaitForVSync(OMAPLFB_DEVINFO *psDevInfo)
+{
+ struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+ OMAP_DSS_MANAGER(psDSSMan, psDSSDev);
+
+ if (psDSSMan != NULL && WAIT_FOR_VSYNC(psDSSMan) != NULL)
+ {
+ int res = WAIT_FOR_VSYNC(psDSSMan)(psDSSMan);
+ if (res != 0)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Wait for vsync failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res));
+ return OMAPLFB_FALSE;
+ }
+ }
+
+ return OMAPLFB_TRUE;
+}
+
+OMAPLFB_BOOL OMAPLFBManualSync(OMAPLFB_DEVINFO *psDevInfo)
+{
+ struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+
+ if (psDSSDrv != NULL && psDSSDrv->sync != NULL)
+ {
+ int res = psDSSDrv->sync(psDSSDev);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Sync failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return OMAPLFB_FALSE;
+ }
+ }
+ return OMAPLFB_TRUE;
+}
+
+OMAPLFB_BOOL OMAPLFBCheckModeAndSync(OMAPLFB_DEVINFO *psDevInfo)
+{
+ OMAPLFB_UPDATE_MODE eMode = OMAPLFBGetUpdateMode(psDevInfo);
+
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ return OMAPLFBManualSync(psDevInfo);
+ default:
+ break;
+ }
+
+ return OMAPLFB_TRUE;
+}
+
+static int OMAPLFBFrameBufferEvents(struct notifier_block *psNotif,
+ unsigned long event, void *data)
+{
+ OMAPLFB_DEVINFO *psDevInfo;
+ struct fb_event *psFBEvent = (struct fb_event *)data;
+ struct fb_info *psFBInfo = psFBEvent->info;
+ OMAPLFB_BOOL bBlanked;
+
+
+ if (event != FB_EVENT_BLANK)
+ {
+ return 0;
+ }
+
+ bBlanked = (*(IMG_INT *)psFBEvent->data != 0) ? OMAPLFB_TRUE: OMAPLFB_FALSE;
+
+ psDevInfo = OMAPLFBGetDevInfoPtr(psFBInfo->node);
+
+#if 0
+ if (psDevInfo != NULL)
+ {
+ if (bBlanked)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Blank event received\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ }
+ else
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unblank event received\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ }
+ }
+ else
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Blank/Unblank event for unknown framebuffer\n", __FUNCTION__, psFBInfo->node));
+ }
+#endif
+
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, bBlanked);
+ OMAPLFBAtomicIntInc(&psDevInfo->sBlankEvents);
+ }
+
+ return 0;
+}
+
+OMAPLFB_ERROR OMAPLFBUnblankDisplay(OMAPLFB_DEVINFO *psDevInfo)
+{
+ int res;
+
+ acquire_console_sem();
+ res = fb_blank(psDevInfo->psLINFBInfo, 0);
+ release_console_sem();
+ if (res != 0 && res != -EINVAL)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_blank failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return (OMAPLFB_ERROR_GENERIC);
+ }
+
+ return (OMAPLFB_OK);
+}
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+
+static void OMAPLFBBlankDisplay(OMAPLFB_DEVINFO *psDevInfo)
+{
+ acquire_console_sem();
+ fb_blank(psDevInfo->psLINFBInfo, 1);
+ release_console_sem();
+}
+
+static void OMAPLFBEarlySuspendHandler(struct early_suspend *h)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
+
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBAtomicBoolSet(&psDevInfo->sEarlySuspendFlag, OMAPLFB_TRUE);
+ OMAPLFBBlankDisplay(psDevInfo);
+ }
+ }
+}
+
+static void OMAPLFBEarlyResumeHandler(struct early_suspend *h)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
+
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBUnblankDisplay(psDevInfo);
+ OMAPLFBAtomicBoolSet(&psDevInfo->sEarlySuspendFlag, OMAPLFB_FALSE);
+ }
+ }
+}
+
+#endif
+
+OMAPLFB_ERROR OMAPLFBEnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
+{
+ int res;
+ OMAPLFB_ERROR eError;
+
+
+ memset(&psDevInfo->sLINNotifBlock, 0, sizeof(psDevInfo->sLINNotifBlock));
+
+ psDevInfo->sLINNotifBlock.notifier_call = OMAPLFBFrameBufferEvents;
+
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+ OMAPLFBAtomicIntSet(&psDevInfo->sBlankEvents, 0);
+
+ res = fb_register_client(&psDevInfo->sLINNotifBlock);
+ if (res != 0)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_register_client failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+
+ return (OMAPLFB_ERROR_GENERIC);
+ }
+
+ eError = OMAPLFBUnblankDisplay(psDevInfo);
+ if (eError != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: UnblankDisplay failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eError);
+ return eError;
+ }
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+ psDevInfo->sEarlySuspend.suspend = OMAPLFBEarlySuspendHandler;
+ psDevInfo->sEarlySuspend.resume = OMAPLFBEarlyResumeHandler;
+ psDevInfo->sEarlySuspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN;
+ register_early_suspend(&psDevInfo->sEarlySuspend);
+#endif
+
+ return (OMAPLFB_OK);
+}
+
+OMAPLFB_ERROR OMAPLFBDisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
+{
+ int res;
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+ unregister_early_suspend(&psDevInfo->sEarlySuspend);
+#endif
+
+
+ res = fb_unregister_client(&psDevInfo->sLINNotifBlock);
+ if (res != 0)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_unregister_client failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return (OMAPLFB_ERROR_GENERIC);
+ }
+
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+
+ return (OMAPLFB_OK);
+}
+
+#if defined(SUPPORT_DRI_DRM) && defined(PVR_DISPLAY_CONTROLLER_DRM_IOCTL)
+static OMAPLFB_DEVINFO *OMAPLFBPVRDevIDToDevInfo(unsigned uiPVRDevID)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
+
+ if (psDevInfo->uiPVRDevID == uiPVRDevID)
+ {
+ return psDevInfo;
+ }
+ }
+
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: PVR Device %u: Couldn't find device\n", __FUNCTION__, uiPVRDevID);
+
+ return NULL;
+}
+
+int PVR_DRM_MAKENAME(omaplfb, _Ioctl)(struct drm_device unref__ *dev, void *arg, struct drm_file unref__ *pFile)
+{
+ uint32_t *puiArgs;
+ uint32_t uiCmd;
+ unsigned uiPVRDevID;
+ int ret = 0;
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if (arg == NULL)
+ {
+ return -EFAULT;
+ }
+
+ puiArgs = (uint32_t *)arg;
+ uiCmd = puiArgs[PVR_DRM_DISP_ARG_CMD];
+ uiPVRDevID = puiArgs[PVR_DRM_DISP_ARG_DEV];
+
+ psDevInfo = OMAPLFBPVRDevIDToDevInfo(uiPVRDevID);
+ if (psDevInfo == NULL)
+ {
+ return -EINVAL;
+ }
+
+
+ switch (uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_LEAVE_VT:
+ case PVR_DRM_DISP_CMD_ENTER_VT:
+ {
+ OMAPLFB_BOOL bLeaveVT = (uiCmd == PVR_DRM_DISP_CMD_LEAVE_VT);
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: %s\n",
+ __FUNCTION__, uiPVRDevID,
+ bLeaveVT ? "Leave VT" : "Enter VT"));
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ OMAPLFBAtomicBoolSet(&psDevInfo->sLeaveVT, bLeaveVT);
+ if (psDevInfo->psSwapChain != NULL)
+ {
+ flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
+
+ if (bLeaveVT)
+ {
+ OMAPLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
+ (void) OMAPLFBCheckModeAndSync(psDevInfo);
+ }
+ }
+
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+ (void) OMAPLFBUnblankDisplay(psDevInfo);
+ break;
+ }
+ case PVR_DRM_DISP_CMD_ON:
+ case PVR_DRM_DISP_CMD_STANDBY:
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ case PVR_DRM_DISP_CMD_OFF:
+ {
+ int iFBMode;
+#if defined(DEBUG)
+ {
+ const char *pszMode;
+ switch(uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_ON:
+ pszMode = "On";
+ break;
+ case PVR_DRM_DISP_CMD_STANDBY:
+ pszMode = "Standby";
+ break;
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ pszMode = "Suspend";
+ break;
+ case PVR_DRM_DISP_CMD_OFF:
+ pszMode = "Off";
+ break;
+ default:
+ pszMode = "(Unknown Mode)";
+ break;
+ }
+ printk (KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: Display %s\n",
+ __FUNCTION__, uiPVRDevID, pszMode);
+ }
+#endif
+ switch(uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_ON:
+ iFBMode = FB_BLANK_UNBLANK;
+ break;
+ case PVR_DRM_DISP_CMD_STANDBY:
+ iFBMode = FB_BLANK_HSYNC_SUSPEND;
+ break;
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ iFBMode = FB_BLANK_VSYNC_SUSPEND;
+ break;
+ case PVR_DRM_DISP_CMD_OFF:
+ iFBMode = FB_BLANK_POWERDOWN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (psDevInfo->psSwapChain != NULL)
+ {
+ flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
+ }
+
+ acquire_console_sem();
+ ret = fb_blank(psDevInfo->psLINFBInfo, iFBMode);
+ release_console_sem();
+
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ break;
+ }
+ default:
+ {
+ ret = -EINVAL;
+ break;
+ }
+ }
+
+ return ret;
+}
+#endif
+
+#if defined(SUPPORT_DRI_DRM)
+int PVR_DRM_MAKENAME(omaplfb, _Init)(struct drm_device unref__ *dev)
+#else
+static int __init OMAPLFB_Init(void)
+#endif
+{
+
+ if(OMAPLFBInit() != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: OMAPLFBInit failed\n", __FUNCTION__);
+ return -ENODEV;
+ }
+
+ return 0;
+
+}
+
+#if defined(SUPPORT_DRI_DRM)
+void PVR_DRM_MAKENAME(omaplfb, _Cleanup)(struct drm_device unref__ *dev)
+#else
+static void __exit OMAPLFB_Cleanup(void)
+#endif
+{
+ if(OMAPLFBDeInit() != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: OMAPLFBDeInit failed\n", __FUNCTION__);
+ }
+}
+
+#if !defined(SUPPORT_DRI_DRM)
+late_initcall(OMAPLFB_Init);
+module_exit(OMAPLFB_Cleanup);
+#endif
+++ /dev/null
-SYS_USING_INTERRUPTS = 1
-SUPPORT_TI_DSS_FW = 0
-
-SYS_CFLAGS.$(SYS_USING_INTERRUPTS) += -DSYS_USING_INTERRUPTS
-SYS_CFLAGS.$(SUPPORT_TI_DSS_FW) += -DSUPPORT_TI_DSS_FW
-
-
-EXTRA_CFLAGS = -DLINUX \
- -DCONFIG_OMAP2_DSS \
- -I$(PVR_BUILD_DIR)/include4 \
- -I$(PVR_BUILD_DIR)/services4/include \
- -I$(PVR_BUILD_DIR)/services4/system/$(PVR_SYSTEM) \
- -I$(PVR_BUILD_DIR)/services4/system/include \
- $(SYS_CFLAGS.1) \
-
-obj-m := omaplfb.o
-omaplfb-y := omaplfb_displayclass.o omaplfb_linux.o
+++ /dev/null
-/**********************************************************************
- *
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful but, except
- * as otherwise stated in writing, without any warranty; without even the
- * implied warranty of merchantability or fitness for a particular purpose.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
- *
- ******************************************************************************/
-
-#ifndef __OMAPLFB_H__
-#define __OMAPLFB_H__
-
-extern IMG_BOOL PVRGetDisplayClassJTable(PVRSRV_DC_DISP2SRV_KMJTABLE *psJTable);
-
-#define OMAPLCD_IRQ 25
-
-#define OMAPLCD_SYSCONFIG 0x0410
-#define OMAPLCD_CONFIG 0x0444
-#define OMAPLCD_DEFAULT_COLOR0 0x044C
-#define OMAPLCD_TIMING_H 0x0464
-#define OMAPLCD_TIMING_V 0x0468
-#define OMAPLCD_POL_FREQ 0x046C
-#define OMAPLCD_DIVISOR 0x0470
-#define OMAPLCD_SIZE_DIG 0x0478
-#define OMAPLCD_SIZE_LCD 0x047C
-#define OMAPLCD_GFX_POSITION 0x0488
-#define OMAPLCD_GFX_SIZE 0x048C
-#define OMAPLCD_GFX_ATTRIBUTES 0x04a0
-#define OMAPLCD_GFX_FIFO_THRESHOLD 0x04a4
-#define OMAPLCD_GFX_WINDOW_SKIP 0x04b4
-
-#define OMAPLCD_IRQSTATUS 0x0418
-#define OMAPLCD_IRQENABLE 0x041c
-#define OMAPLCD_CONTROL 0x0440
-#define OMAPLCD_GFX_BA0 0x0480
-#define OMAPLCD_GFX_BA1 0x0484
-#define OMAPLCD_GFX_ROW_INC 0x04ac
-#define OMAPLCD_GFX_PIX_INC 0x04b0
-#define OMAPLCD_VID1_BA0 0x04bc
-#define OMAPLCD_VID1_BA1 0x04c0
-#define OMAPLCD_VID1_ROW_INC 0x04d8
-#define OMAPLCD_VID1_PIX_INC 0x04dc
-
-#define OMAP_CONTROL_GODIGITAL (1 << 6)
-#define OMAP_CONTROL_GOLCD (1 << 5)
-#define OMAP_CONTROL_DIGITALENABLE (1 << 1)
-#define OMAP_CONTROL_LCDENABLE (1 << 0)
-
-#define OMAPLCD_INTMASK_VSYNC (1 << 1)
-#define OMAPLCD_INTMASK_OFF 0
-
-typedef void * OMAP_HANDLE;
-
-typedef enum tag_omap_bool
-{
- OMAP_FALSE = 0,
- OMAP_TRUE = 1,
-} OMAP_BOOL, *OMAP_PBOOL;
-
-typedef struct OMAPLFB_BUFFER_TAG
-{
- unsigned long ulBufferSize;
-
-
-
-
- IMG_SYS_PHYADDR sSysAddr;
- IMG_CPU_VIRTADDR sCPUVAddr;
- PVRSRV_SYNC_DATA *psSyncData;
-
- struct OMAPLFB_BUFFER_TAG *psNext;
-} OMAPLFB_BUFFER;
-
-typedef struct OMAPLFB_VSYNC_FLIP_ITEM_TAG
-{
-
-
-
- OMAP_HANDLE hCmdComplete;
-
- unsigned long ulSwapInterval;
-
- OMAP_BOOL bValid;
-
- OMAP_BOOL bFlipped;
-
- OMAP_BOOL bCmdCompleted;
-
-
-
-
-
- IMG_SYS_PHYADDR* sSysAddr;
-} OMAPLFB_VSYNC_FLIP_ITEM;
-
-typedef struct PVRPDP_SWAPCHAIN_TAG
-{
-
- unsigned long ulBufferCount;
-
- OMAPLFB_BUFFER *psBuffer;
-
- OMAPLFB_VSYNC_FLIP_ITEM *psVSyncFlips;
-
-
- unsigned long ulInsertIndex;
-
-
- unsigned long ulRemoveIndex;
-
-
- void *pvRegs;
-
-
- PVRSRV_DC_DISP2SRV_KMJTABLE *psPVRJTable;
-
-
- OMAP_BOOL bFlushCommands;
-
-
- unsigned long ulSetFlushStateRefCount;
-
-
- OMAP_BOOL bBlanked;
-
-
- spinlock_t *psSwapChainLock;
-} OMAPLFB_SWAPCHAIN;
-
-typedef struct OMAPLFB_FBINFO_TAG
-{
- unsigned long ulFBSize;
- unsigned long ulBufferSize;
- unsigned long ulRoundedBufferSize;
- unsigned long ulWidth;
- unsigned long ulHeight;
- unsigned long ulByteStride;
-
-
-
- IMG_SYS_PHYADDR sSysAddr;
- IMG_CPU_VIRTADDR sCPUVAddr;
-
-
- PVRSRV_PIXEL_FORMAT ePixelFormat;
-}OMAPLFB_FBINFO;
-
-typedef struct OMAPLFB_DEVINFO_TAG
-{
- unsigned long ulDeviceID;
-
-
- OMAPLFB_BUFFER sSystemBuffer;
-
-
- PVRSRV_DC_DISP2SRV_KMJTABLE sPVRJTable;
-
-
- PVRSRV_DC_SRV2DISP_KMJTABLE sDCJTable;
-
-
- OMAPLFB_FBINFO sFBInfo;
-
-
- unsigned long ulRefCount;
-
-
- OMAPLFB_SWAPCHAIN *psSwapChain;
-
-
- OMAP_BOOL bFlushCommands;
-
-
- struct fb_info *psLINFBInfo;
-
-
- struct notifier_block sLINNotifBlock;
-
-
- OMAP_BOOL bDeviceSuspended;
-
-
- spinlock_t sSwapChainLock;
-
-
-
-
-
- IMG_DEV_VIRTADDR sDisplayDevVAddr;
-
- DISPLAY_INFO sDisplayInfo;
-
-
- DISPLAY_FORMAT sDisplayFormat;
-
-
- DISPLAY_DIMS sDisplayDim;
-
-} OMAPLFB_DEVINFO;
-
-#define OMAPLFB_PAGE_SIZE 4096
-#define OMAPLFB_PAGE_MASK (OMAPLFB_PAGE_SIZE - 1)
-#define OMAPLFB_PAGE_TRUNC (~OMAPLFB_PAGE_MASK)
-
-#define OMAPLFB_PAGE_ROUNDUP(x) (((x) + OMAPLFB_PAGE_MASK) & OMAPLFB_PAGE_TRUNC)
-
-//#define DEBUG
-
-#ifdef DEBUG
-#define DEBUG_PRINTK(x) printk x
-#else
-#define DEBUG_PRINTK(x)
-#endif
-
-#define DISPLAY_DEVICE_NAME "PowerVR OMAP Linux Display Driver"
-#define DRVNAME "omaplfb"
-#define DEVNAME DRVNAME
-#define DRIVER_PREFIX DRVNAME
-
-typedef enum _OMAP_ERROR_
-{
- OMAP_OK = 0,
- OMAP_ERROR_GENERIC = 1,
- OMAP_ERROR_OUT_OF_MEMORY = 2,
- OMAP_ERROR_TOO_FEW_BUFFERS = 3,
- OMAP_ERROR_INVALID_PARAMS = 4,
- OMAP_ERROR_INIT_FAILURE = 5,
- OMAP_ERROR_CANT_REGISTER_CALLBACK = 6,
- OMAP_ERROR_INVALID_DEVICE = 7,
- OMAP_ERROR_DEVICE_REGISTER_FAILED = 8
-} OMAP_ERROR;
-
-
-#ifndef UNREFERENCED_PARAMETER
-#define UNREFERENCED_PARAMETER(param) (param) = (param)
-#endif
-
-OMAP_ERROR OMAPLFBInit(void);
-OMAP_ERROR OMAPLFBDeinit(void);
-
-#ifdef LDM_PLATFORM
-void OMAPLFBDriverSuspend(void);
-void OMAPLFBDriverResume(void);
-#endif
-
-void *OMAPLFBAllocKernelMem(unsigned long ulSize);
-void OMAPLFBFreeKernelMem(void *pvMem);
-OMAP_ERROR OMAPLFBGetLibFuncAddr(char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable);
-OMAP_ERROR OMAPLFBInstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain);
-OMAP_ERROR OMAPLFBUninstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain);
-OMAP_BOOL OMAPLFBVSyncIHandler(OMAPLFB_SWAPCHAIN *psSwapChain);
-void OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain);
-void OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain);
-#if defined (SUPPORT_TI_DSS_FW)
-void OMAPLFBEnableDisplayRegisterAccess(void);
-void OMAPLFBDisableDisplayRegisterAccess(void);
-#endif
-#if defined (CONFIG_OMAP2_DSS)
-IMG_VOID OMAPLFBFlipDSS2(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr);
-#endif
-void OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long aPhyAddr);
-
-#endif
-
+++ /dev/null
-/**********************************************************************
- *
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful but, except
- * as otherwise stated in writing, without any warranty; without even the
- * implied warranty of merchantability or fitness for a particular purpose.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
- *
- ******************************************************************************/
-
-#include <linux/version.h>
-#include <linux/kernel.h>
-#include <linux/console.h>
-#include <linux/fb.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/notifier.h>
-#include <linux/spinlock.h>
-
-#include "img_defs.h"
-#include "servicesext.h"
-#include "kerneldisplay.h"
-#include "omaplfb.h"
-
-static void *gpvAnchor;
-
-static int fb_idx = 0;
-
-#define OMAPLFB_COMMAND_COUNT 1
-
-static PFN_DC_GET_PVRJTABLE pfnGetPVRJTable = 0;
-
-static OMAPLFB_DEVINFO * GetAnchorPtr(void)
-{
- return (OMAPLFB_DEVINFO *)gpvAnchor;
-}
-
-static void SetAnchorPtr(OMAPLFB_DEVINFO *psDevInfo)
-{
- gpvAnchor = (void*)psDevInfo;
-}
-
-
-static void FlushInternalVSyncQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
- OMAPLFB_VSYNC_FLIP_ITEM *psFlipItem;
- unsigned long ulMaxIndex;
- unsigned long i;
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- ulMaxIndex = psSwapChain->ulBufferCount - 1;
-
- for(i = 0; i < psSwapChain->ulBufferCount; i++)
- {
- if (psFlipItem->bValid == OMAP_FALSE)
- {
- continue;
- }
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": FlushInternalVSyncQueue: Flushing swap buffer (index %lu)\n", psSwapChain->ulRemoveIndex));
-
- if(psFlipItem->bFlipped == OMAP_FALSE)
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psFlipItem->sSysAddr);
- }
-
- if(psFlipItem->bCmdCompleted == OMAP_FALSE)
- {
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": FlushInternalVSyncQueue: Calling command complete for swap buffer (index %lu)\n", psSwapChain->ulRemoveIndex));
-
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete((IMG_HANDLE)psFlipItem->hCmdComplete, IMG_TRUE);
- }
-
-
- psSwapChain->ulRemoveIndex++;
-
- if(psSwapChain->ulRemoveIndex > ulMaxIndex)
- {
- psSwapChain->ulRemoveIndex = 0;
- }
-
-
- psFlipItem->bFlipped = OMAP_FALSE;
- psFlipItem->bCmdCompleted = OMAP_FALSE;
- psFlipItem->bValid = OMAP_FALSE;
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- }
-
- psSwapChain->ulInsertIndex = 0;
- psSwapChain->ulRemoveIndex = 0;
-}
-
-static void SetFlushStateInternalNoLock(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
-{
- OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
-
- if (psSwapChain == NULL)
- {
- return;
- }
-
- if (bFlushState)
- {
- if (psSwapChain->ulSetFlushStateRefCount == 0)
- {
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
- psSwapChain->bFlushCommands = OMAP_TRUE;
- FlushInternalVSyncQueue(psSwapChain);
- }
- psSwapChain->ulSetFlushStateRefCount++;
- }
- else
- {
- if (psSwapChain->ulSetFlushStateRefCount != 0)
- {
- psSwapChain->ulSetFlushStateRefCount--;
- if (psSwapChain->ulSetFlushStateRefCount == 0)
- {
- psSwapChain->bFlushCommands = OMAP_FALSE;
- OMAPLFBEnableVSyncInterrupt(psSwapChain);
- }
- }
- }
-}
-
-static IMG_VOID SetFlushStateInternal(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
-{
- unsigned long ulLockFlags;
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- SetFlushStateInternalNoLock(psDevInfo, bFlushState);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-}
-
-static void SetFlushStateExternal(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
-{
- unsigned long ulLockFlags;
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- if (psDevInfo->bFlushCommands != bFlushState)
- {
- psDevInfo->bFlushCommands = bFlushState;
- SetFlushStateInternalNoLock(psDevInfo, bFlushState);
- }
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-}
-
-static IMG_VOID SetDCState(IMG_HANDLE hDevice, IMG_UINT32 ui32State)
-{
- OMAPLFB_DEVINFO *psDevInfo = (OMAPLFB_DEVINFO *)hDevice;
-
- switch (ui32State)
- {
- case DC_STATE_FLUSH_COMMANDS:
- SetFlushStateExternal(psDevInfo, OMAP_TRUE);
- break;
- case DC_STATE_NO_FLUSH_COMMANDS:
- SetFlushStateExternal(psDevInfo, OMAP_FALSE);
- break;
- default:
- break;
- }
-
- return;
-}
-
-static int FrameBufferEvents(struct notifier_block *psNotif,
- unsigned long event, void *data)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- struct fb_event *psFBEvent = (struct fb_event *)data;
- OMAP_BOOL bBlanked;
-
-
- if (event != FB_EVENT_BLANK)
- {
- return 0;
- }
-
- psDevInfo = GetAnchorPtr();
- psSwapChain = psDevInfo->psSwapChain;
-
- bBlanked = (*(IMG_INT *)psFBEvent->data != 0) ? OMAP_TRUE: OMAP_FALSE;
-
- if (bBlanked != psSwapChain->bBlanked)
- {
- psSwapChain->bBlanked = bBlanked;
-
- if (bBlanked)
- {
-
- SetFlushStateInternal(psDevInfo, OMAP_TRUE);
- }
- else
- {
-
- SetFlushStateInternal(psDevInfo, OMAP_FALSE);
- }
- }
-
- return 0;
-}
-
-
-static OMAP_ERROR UnblankDisplay(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
-
- acquire_console_sem();
- res = fb_blank(psDevInfo->psLINFBInfo, 0);
- release_console_sem();
-#if !defined (CONFIG_OMAP2_DSS)
- /* DSS2 returns error if unblank from a non-suspend state */
- if (res != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_blank failed (%d)", res);
- return (OMAP_ERROR_GENERIC);
- }
-#endif
-
- return (OMAP_OK);
-}
-
-#if defined (CONFIG_OMAP2_DSS)
-#include <linux/workqueue.h>
-struct wq_flip {
- struct fb_var_screeninfo var;
- struct fb_info *psLINFBInfo;
- struct work_struct work;
-};
-struct wq_flip wq_flipdss2;
-
-static void dss2_pan_display (struct work_struct *work)
-{
- struct wq_flip *ptrwq_flip =
- container_of(work, struct wq_flip, work);
- if (ptrwq_flip->psLINFBInfo->fbops->fb_pan_display != NULL) {
- ptrwq_flip->psLINFBInfo->fbops->fb_pan_display (&ptrwq_flip->var, ptrwq_flip->psLINFBInfo);
-
- }
-
-}
-
-/*
- Flip implementation for DSS2 using fb_pan_display
-*/
-IMG_VOID OMAPLFBFlipDSS2(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr)
-{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr ();
- struct fb_info *psLINFBInfo = psDevInfo->psLINFBInfo;
- memcpy ( &wq_flipdss2.var, &psLINFBInfo->var, sizeof(struct fb_var_screeninfo));
- wq_flipdss2.var.yoffset = (aPhyAddr-psLINFBInfo->fix.smem_start)/psLINFBInfo->fix.line_length;
- wq_flipdss2.psLINFBInfo = psLINFBInfo;
- schedule_work (&wq_flipdss2.work);
-}
-#endif
-
-static OMAP_ERROR EnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
- OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
- OMAP_ERROR eError;
-
-
- memset(&psDevInfo->sLINNotifBlock, 0, sizeof(psDevInfo->sLINNotifBlock));
-
- psDevInfo->sLINNotifBlock.notifier_call = FrameBufferEvents;
-
- psSwapChain->bBlanked = OMAP_FALSE;
-
- res = fb_register_client(&psDevInfo->sLINNotifBlock);
- if (res != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_register_client failed (%d)", res);
-
- return (OMAP_ERROR_GENERIC);
- }
-
- eError = UnblankDisplay(psDevInfo);
- if (eError != OMAP_OK)
- {
- DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
- ": UnblankDisplay failed (%d)", eError));
- return eError;
- }
-
- return (OMAP_OK);
-}
-
-static OMAP_ERROR DisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
-
-
- res = fb_unregister_client(&psDevInfo->sLINNotifBlock);
- if (res != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_unregister_client failed (%d)", res);
- return (OMAP_ERROR_GENERIC);
- }
-
- return (OMAP_OK);
-}
-
-static PVRSRV_ERROR OpenDCDevice(IMG_UINT32 ui32DeviceID,
- IMG_HANDLE *phDevice,
- PVRSRV_SYNC_DATA* psSystemBufferSyncData)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAP_ERROR eError;
-
- UNREFERENCED_PARAMETER(ui32DeviceID);
-
- psDevInfo = GetAnchorPtr();
-
-
- psDevInfo->sSystemBuffer.psSyncData = psSystemBufferSyncData;
-
- eError = UnblankDisplay(psDevInfo);
- if (eError != OMAP_OK)
- {
- DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
- ": UnblankDisplay failed (%d)", eError));
- return (PVRSRV_ERROR_GENERIC);
- }
-
-
- *phDevice = (IMG_HANDLE)psDevInfo;
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR CloseDCDevice(IMG_HANDLE hDevice)
-{
- UNREFERENCED_PARAMETER(hDevice);
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR EnumDCFormats(IMG_HANDLE hDevice,
- IMG_UINT32 *pui32NumFormats,
- DISPLAY_FORMAT *psFormat)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- if(!hDevice || !pui32NumFormats)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- *pui32NumFormats = 1;
-
- if(psFormat)
- {
- psFormat[0] = psDevInfo->sDisplayFormat;
- }
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR EnumDCDims(IMG_HANDLE hDevice,
- DISPLAY_FORMAT *psFormat,
- IMG_UINT32 *pui32NumDims,
- DISPLAY_DIMS *psDim)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- if(!hDevice || !psFormat || !pui32NumDims)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- *pui32NumDims = 1;
-
-
- if(psDim)
- {
- psDim[0] = psDevInfo->sDisplayDim;
- }
-
- return (PVRSRV_OK);
-}
-
-
-static PVRSRV_ERROR GetDCSystemBuffer(IMG_HANDLE hDevice, IMG_HANDLE *phBuffer)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- if(!hDevice || !phBuffer)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- *phBuffer = (IMG_HANDLE)&psDevInfo->sSystemBuffer;
-
- return (PVRSRV_OK);
-}
-
-
-static PVRSRV_ERROR GetDCInfo(IMG_HANDLE hDevice, DISPLAY_INFO *psDCInfo)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- if(!hDevice || !psDCInfo)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- *psDCInfo = psDevInfo->sDisplayInfo;
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR GetDCBufferAddr(IMG_HANDLE hDevice,
- IMG_HANDLE hBuffer,
- IMG_SYS_PHYADDR **ppsSysAddr,
- IMG_UINT32 *pui32ByteSize,
- IMG_VOID **ppvCpuVAddr,
- IMG_HANDLE *phOSMapInfo,
- IMG_BOOL *pbIsContiguous)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_BUFFER *psSystemBuffer;
-
- if(!hDevice)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- if(!hBuffer)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
- psSystemBuffer = (OMAPLFB_BUFFER *)hBuffer;
-
- if (!ppsSysAddr)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- *ppsSysAddr = &psSystemBuffer->sSysAddr;
-
- if (!pui32ByteSize)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- *pui32ByteSize = (IMG_UINT32)psDevInfo->sFBInfo.ulBufferSize;
-
- if (ppvCpuVAddr)
- {
- *ppvCpuVAddr = psSystemBuffer->sCPUVAddr;
- }
-
- if (phOSMapInfo)
- {
- *phOSMapInfo = (IMG_HANDLE)0;
- }
-
- if (pbIsContiguous)
- {
- *pbIsContiguous = IMG_TRUE;
- }
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR CreateDCSwapChain(IMG_HANDLE hDevice,
- IMG_UINT32 ui32Flags,
- DISPLAY_SURF_ATTRIBUTES *psDstSurfAttrib,
- DISPLAY_SURF_ATTRIBUTES *psSrcSurfAttrib,
- IMG_UINT32 ui32BufferCount,
- PVRSRV_SYNC_DATA **ppsSyncData,
- IMG_UINT32 ui32OEMFlags,
- IMG_HANDLE *phSwapChain,
- IMG_UINT32 *pui32SwapChainID)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- OMAPLFB_BUFFER *psBuffer;
- OMAPLFB_VSYNC_FLIP_ITEM *psVSyncFlips;
- IMG_UINT32 i;
- PVRSRV_ERROR eError = PVRSRV_ERROR_GENERIC;
- unsigned long ulLockFlags;
- IMG_UINT32 ui32BuffersToSkip;
-
- UNREFERENCED_PARAMETER(ui32OEMFlags);
- UNREFERENCED_PARAMETER(pui32SwapChainID);
-
-
- if(!hDevice
- || !psDstSurfAttrib
- || !psSrcSurfAttrib
- || !ppsSyncData
- || !phSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
-
- if (psDevInfo->sDisplayInfo.ui32MaxSwapChains == 0)
- {
- return (PVRSRV_ERROR_NOT_SUPPORTED);
- }
-
-
- if(psDevInfo->psSwapChain != NULL)
- {
- return (PVRSRV_ERROR_FLIP_CHAIN_EXISTS);
- }
-
-
- if(ui32BufferCount > psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers)
- {
- return (PVRSRV_ERROR_TOOMANYBUFFERS);
- }
-
- if ((psDevInfo->sFBInfo.ulRoundedBufferSize * (unsigned long)ui32BufferCount) > psDevInfo->sFBInfo.ulFBSize)
- {
- return (PVRSRV_ERROR_TOOMANYBUFFERS);
- }
-
-
- ui32BuffersToSkip = psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers - ui32BufferCount;
-
-
- if(psDstSurfAttrib->pixelformat != psDevInfo->sDisplayFormat.pixelformat
- || psDstSurfAttrib->sDims.ui32ByteStride != psDevInfo->sDisplayDim.ui32ByteStride
- || psDstSurfAttrib->sDims.ui32Width != psDevInfo->sDisplayDim.ui32Width
- || psDstSurfAttrib->sDims.ui32Height != psDevInfo->sDisplayDim.ui32Height)
- {
-
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat
- || psDstSurfAttrib->sDims.ui32ByteStride != psSrcSurfAttrib->sDims.ui32ByteStride
- || psDstSurfAttrib->sDims.ui32Width != psSrcSurfAttrib->sDims.ui32Width
- || psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height)
- {
-
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
-
- UNREFERENCED_PARAMETER(ui32Flags);
-
-
- psSwapChain = (OMAPLFB_SWAPCHAIN*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_SWAPCHAIN));
- if(!psSwapChain)
- {
- return (PVRSRV_ERROR_OUT_OF_MEMORY);
- }
-
- psBuffer = (OMAPLFB_BUFFER*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_BUFFER) * ui32BufferCount);
- if(!psBuffer)
- {
- eError = PVRSRV_ERROR_OUT_OF_MEMORY;
- goto ErrorFreeSwapChain;
- }
-
- psVSyncFlips = (OMAPLFB_VSYNC_FLIP_ITEM *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_VSYNC_FLIP_ITEM) * ui32BufferCount);
- if (!psVSyncFlips)
- {
- eError = PVRSRV_ERROR_OUT_OF_MEMORY;
- goto ErrorFreeBuffers;
- }
-
- psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount;
- psSwapChain->psBuffer = psBuffer;
- psSwapChain->psVSyncFlips = psVSyncFlips;
- psSwapChain->ulInsertIndex = 0;
- psSwapChain->ulRemoveIndex = 0;
- psSwapChain->psPVRJTable = &psDevInfo->sPVRJTable;
- psSwapChain->psSwapChainLock = &psDevInfo->sSwapChainLock;
-
-
- for(i=0; i<ui32BufferCount-1; i++)
- {
- psBuffer[i].psNext = &psBuffer[i+1];
- }
-
- psBuffer[i].psNext = &psBuffer[0];
-
-
- for(i=0; i<ui32BufferCount; i++)
- {
- IMG_UINT32 ui32SwapBuffer = i + ui32BuffersToSkip;
- IMG_UINT32 ui32BufferOffset = ui32SwapBuffer * (IMG_UINT32)psDevInfo->sFBInfo.ulRoundedBufferSize;
-
- psBuffer[i].psSyncData = ppsSyncData[i];
-
- psBuffer[i].sSysAddr.uiAddr = psDevInfo->sFBInfo.sSysAddr.uiAddr + ui32BufferOffset;
- psBuffer[i].sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr + ui32BufferOffset;
- }
-
-
- for(i=0; i<ui32BufferCount; i++)
- {
- psVSyncFlips[i].bValid = OMAP_FALSE;
- psVSyncFlips[i].bFlipped = OMAP_FALSE;
- psVSyncFlips[i].bCmdCompleted = OMAP_FALSE;
- }
-#if defined (SUPPORT_TI_DSS_FW)
-
- OMAPLFBEnableDisplayRegisterAccess();
-
-
- psSwapChain->pvRegs = ioremap(psDevInfo->psLINFBInfo->fix.mmio_start, psDevInfo->psLINFBInfo->fix.mmio_len);
- if (psSwapChain->pvRegs == NULL)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't map registers needed for flipping\n");
- goto ErrorDisableDisplayRegisters;
- }
-#endif
- if (OMAPLFBInstallVSyncISR(psSwapChain) != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": ISR handler failed to register\n");
- goto ErrorUnmapRegisters;
- }
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- psDevInfo->psSwapChain = psSwapChain;
-
-
- psSwapChain->bFlushCommands = psDevInfo->bFlushCommands;
-
- if (psSwapChain->bFlushCommands)
- {
- psSwapChain->ulSetFlushStateRefCount = 1;
- }
- else
- {
- psSwapChain->ulSetFlushStateRefCount = 0;
- OMAPLFBEnableVSyncInterrupt(psSwapChain);
- }
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- if (EnableLFBEventNotification(psDevInfo)!= OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't enable framebuffer event notification\n");
- goto ErrorUninstallVSyncInterrupt;
- }
-
-
- *phSwapChain = (IMG_HANDLE)psSwapChain;
-
- return (PVRSRV_OK);
-
-ErrorUninstallVSyncInterrupt:
- if(OMAPLFBUninstallVSyncISR(psSwapChain) != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't uninstall VSync ISR\n");
- }
-ErrorUnmapRegisters:
-#if defined (SUPPORT_TI_DSS_FW)
- iounmap(psSwapChain->pvRegs);
-ErrorDisableDisplayRegisters:
- OMAPLFBDisableDisplayRegisterAccess();
-#endif
- OMAPLFBFreeKernelMem(psVSyncFlips);
-ErrorFreeBuffers:
- OMAPLFBFreeKernelMem(psBuffer);
-ErrorFreeSwapChain:
- OMAPLFBFreeKernelMem(psSwapChain);
-
- return eError;
-}
-
-static PVRSRV_ERROR DestroyDCSwapChain(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long ulLockFlags;
- OMAP_ERROR eError;
-
-
- if(!hDevice || !hSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
- psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- eError = DisableLFBEventNotification(psDevInfo);
- if (eError != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't disable framebuffer event notification\n");
- }
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
-
-
- FlushInternalVSyncQueue(psSwapChain);
-
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psDevInfo->sFBInfo.sSysAddr.uiAddr);
-
-
- psDevInfo->psSwapChain = NULL;
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- if(OMAPLFBUninstallVSyncISR(psSwapChain) != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't uninstall VSync ISR\n");
- return (PVRSRV_ERROR_GENERIC);
- }
-
-#if defined (SUPPORT_TI_DSS_FW)
-
- iounmap(psSwapChain->pvRegs);
-
- OMAPLFBDisableDisplayRegisterAccess();
-#endif
-
- OMAPLFBFreeKernelMem(psSwapChain->psVSyncFlips);
- OMAPLFBFreeKernelMem(psSwapChain->psBuffer);
- OMAPLFBFreeKernelMem(psSwapChain);
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR SetDCDstRect(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain,
- IMG_RECT *psRect)
-{
- UNREFERENCED_PARAMETER(hDevice);
- UNREFERENCED_PARAMETER(hSwapChain);
- UNREFERENCED_PARAMETER(psRect);
-
-
-
- return (PVRSRV_ERROR_NOT_SUPPORTED);
-}
-
-static PVRSRV_ERROR SetDCSrcRect(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain,
- IMG_RECT *psRect)
-{
- UNREFERENCED_PARAMETER(hDevice);
- UNREFERENCED_PARAMETER(hSwapChain);
- UNREFERENCED_PARAMETER(psRect);
-
-
-
- return (PVRSRV_ERROR_NOT_SUPPORTED);
-}
-
-static PVRSRV_ERROR SetDCDstColourKey(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain,
- IMG_UINT32 ui32CKColour)
-{
- UNREFERENCED_PARAMETER(hDevice);
- UNREFERENCED_PARAMETER(hSwapChain);
- UNREFERENCED_PARAMETER(ui32CKColour);
-
-
-
- return (PVRSRV_ERROR_NOT_SUPPORTED);
-}
-
-static PVRSRV_ERROR SetDCSrcColourKey(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain,
- IMG_UINT32 ui32CKColour)
-{
- UNREFERENCED_PARAMETER(hDevice);
- UNREFERENCED_PARAMETER(hSwapChain);
- UNREFERENCED_PARAMETER(ui32CKColour);
-
-
-
- return (PVRSRV_ERROR_NOT_SUPPORTED);
-}
-
-static PVRSRV_ERROR GetDCBuffers(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain,
- IMG_UINT32 *pui32BufferCount,
- IMG_HANDLE *phBuffer)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long i;
-
-
- if(!hDevice
- || !hSwapChain
- || !pui32BufferCount
- || !phBuffer)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
- psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
-
- *pui32BufferCount = (IMG_UINT32)psSwapChain->ulBufferCount;
-
-
- for(i=0; i<psSwapChain->ulBufferCount; i++)
- {
- phBuffer[i] = (IMG_HANDLE)&psSwapChain->psBuffer[i];
- }
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR SwapToDCBuffer(IMG_HANDLE hDevice,
- IMG_HANDLE hBuffer,
- IMG_UINT32 ui32SwapInterval,
- IMG_HANDLE hPrivateTag,
- IMG_UINT32 ui32ClipRectCount,
- IMG_RECT *psClipRect)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- UNREFERENCED_PARAMETER(ui32SwapInterval);
- UNREFERENCED_PARAMETER(hPrivateTag);
- UNREFERENCED_PARAMETER(psClipRect);
-
- if(!hDevice
- || !hBuffer
- || (ui32ClipRectCount != 0))
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
-
- return (PVRSRV_OK);
-}
-
-static PVRSRV_ERROR SwapToDCSystem(IMG_HANDLE hDevice,
- IMG_HANDLE hSwapChain)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long ulLockFlags;
-
- if(!hDevice || !hSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
- psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- FlushInternalVSyncQueue(psSwapChain);
-
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psDevInfo->sFBInfo.sSysAddr.uiAddr);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- return (PVRSRV_OK);
-}
-
-OMAP_BOOL OMAPLFBVSyncIHandler(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
- OMAP_BOOL bStatus = OMAP_FALSE;
- OMAPLFB_VSYNC_FLIP_ITEM *psFlipItem;
- unsigned long ulMaxIndex;
- unsigned long ulLockFlags;
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- ulMaxIndex = psSwapChain->ulBufferCount - 1;
-
- spin_lock_irqsave(psSwapChain->psSwapChainLock, ulLockFlags);
-
-
- if (psSwapChain->bFlushCommands)
- {
- goto ExitUnlock;
- }
-
- while(psFlipItem->bValid)
- {
-
- if(psFlipItem->bFlipped)
- {
-
- if(!psFlipItem->bCmdCompleted)
- {
-
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete((IMG_HANDLE)psFlipItem->hCmdComplete, IMG_TRUE);
-
-
- psFlipItem->bCmdCompleted = OMAP_TRUE;
- }
-
-
- psFlipItem->ulSwapInterval--;
-
-
- if(psFlipItem->ulSwapInterval == 0)
- {
-
- psSwapChain->ulRemoveIndex++;
-
- if(psSwapChain->ulRemoveIndex > ulMaxIndex)
- {
- psSwapChain->ulRemoveIndex = 0;
- }
-
-
- psFlipItem->bCmdCompleted = OMAP_FALSE;
- psFlipItem->bFlipped = OMAP_FALSE;
-
-
- psFlipItem->bValid = OMAP_FALSE;
- }
- else
- {
-
- break;
- }
- }
- else
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psFlipItem->sSysAddr);
-
-
- psFlipItem->bFlipped = OMAP_TRUE;
-
-
- break;
- }
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- }
-
-ExitUnlock:
- spin_unlock_irqrestore(psSwapChain->psSwapChainLock, ulLockFlags);
-
- return bStatus;
-}
-
-static IMG_BOOL ProcessFlip(IMG_HANDLE hCmdCookie,
- IMG_UINT32 ui32DataSize,
- IMG_VOID *pvData)
-{
- DISPLAYCLASS_FLIP_COMMAND *psFlipCmd;
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_BUFFER *psBuffer;
- OMAPLFB_SWAPCHAIN *psSwapChain;
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFB_VSYNC_FLIP_ITEM* psFlipItem;
-#endif
- unsigned long ulLockFlags;
-
-
- if(!hCmdCookie || !pvData)
- {
- return IMG_FALSE;
- }
-
-
- psFlipCmd = (DISPLAYCLASS_FLIP_COMMAND*)pvData;
-
- if (psFlipCmd == IMG_NULL || sizeof(DISPLAYCLASS_FLIP_COMMAND) != ui32DataSize)
- {
- return IMG_FALSE;
- }
-
-
- psDevInfo = (OMAPLFB_DEVINFO*)psFlipCmd->hExtDevice;
-
- psBuffer = (OMAPLFB_BUFFER*)psFlipCmd->hExtBuffer;
- psSwapChain = (OMAPLFB_SWAPCHAIN*) psFlipCmd->hExtSwapChain;
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- if (psDevInfo->bDeviceSuspended)
- {
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete(hCmdCookie, IMG_TRUE);
- goto ExitTrueUnlock;
- }
-
-#if defined(SYS_USING_INTERRUPTS)
-
- if(psFlipCmd->ui32SwapInterval == 0 || psSwapChain->bFlushCommands == OMAP_TRUE)
- {
-#endif
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psBuffer->sSysAddr.uiAddr);
-
-
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete(hCmdCookie, IMG_TRUE);
-
-#if defined(SYS_USING_INTERRUPTS)
- goto ExitTrueUnlock;
- }
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulInsertIndex];
-
-
- if(psFlipItem->bValid == OMAP_FALSE)
- {
- unsigned long ulMaxIndex = psSwapChain->ulBufferCount - 1;
-
- if(psSwapChain->ulInsertIndex == psSwapChain->ulRemoveIndex)
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psBuffer->sSysAddr.uiAddr);
-
- psFlipItem->bFlipped = OMAP_TRUE;
- }
- else
- {
- psFlipItem->bFlipped = OMAP_FALSE;
- }
-
- psFlipItem->hCmdComplete = (OMAP_HANDLE)hCmdCookie;
- psFlipItem->ulSwapInterval = (unsigned long)psFlipCmd->ui32SwapInterval;
- psFlipItem->sSysAddr = &psBuffer->sSysAddr;
- psFlipItem->bValid = OMAP_TRUE;
-
- psSwapChain->ulInsertIndex++;
- if(psSwapChain->ulInsertIndex > ulMaxIndex)
- {
- psSwapChain->ulInsertIndex = 0;
- }
-
- goto ExitTrueUnlock;
- }
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
- return IMG_FALSE;
-#endif
-
-ExitTrueUnlock:
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
- return IMG_TRUE;
-}
-
-
-static OMAP_ERROR InitDev(OMAPLFB_DEVINFO *psDevInfo)
-{
- struct fb_info *psLINFBInfo;
- struct module *psLINFBOwner;
- OMAPLFB_FBINFO *psPVRFBInfo = &psDevInfo->sFBInfo;
- OMAP_ERROR eError = OMAP_ERROR_GENERIC;
- unsigned long FBSize;
-
- acquire_console_sem();
-
- if (fb_idx < 0 || fb_idx >= num_registered_fb)
- {
- eError = OMAP_ERROR_INVALID_DEVICE;
- goto errRelSem;
- }
-
- psLINFBInfo = registered_fb[fb_idx];
-
- psLINFBOwner = psLINFBInfo->fbops->owner;
- if (!try_module_get(psLINFBOwner))
- {
- printk(KERN_INFO DRIVER_PREFIX
- ": Couldn't get framebuffer module\n");
-
- goto errRelSem;
- }
-
- if (psLINFBInfo->fbops->fb_open != NULL)
- {
- int res;
-
- res = psLINFBInfo->fbops->fb_open(psLINFBInfo, 0);
- if (res != 0)
- {
- printk(KERN_INFO DRIVER_PREFIX
- ": Couldn't open framebuffer: %d\n", res);
-
- goto errModPut;
- }
- }
-
-
- psDevInfo->psLINFBInfo = psLINFBInfo;
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": psLINFBInfo->screen_size: 0x%lx\n",
- psLINFBInfo->screen_size));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": psLINFBInfo->fix.smem_len : 0x%lx\n",
- psLINFBInfo->fix.smem_len));
-
-
- FBSize = (psLINFBInfo->screen_size) != 0 ?
- psLINFBInfo->screen_size :
- psLINFBInfo->fix.smem_len;
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer physical address: 0x%lx\n",
- psLINFBInfo->fix.smem_start));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual address: 0x%lx\n",
- (unsigned long)psLINFBInfo->screen_base));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer size: %lu\n",
- FBSize));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual width: %u\n",
- psLINFBInfo->var.xres_virtual));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual height: %u\n",
- psLINFBInfo->var.yres_virtual));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer width: %u\n",
- psLINFBInfo->var.xres));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer height: %u\n",
- psLINFBInfo->var.yres));
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer stride: %u\n",
- psLINFBInfo->fix.line_length));
-
-
- psPVRFBInfo->sSysAddr.uiAddr = psLINFBInfo->fix.smem_start;
- psPVRFBInfo->sCPUVAddr = psLINFBInfo->screen_base;
- if ((psLINFBInfo->var.rotate == FB_ROTATE_CW)
- || (psLINFBInfo->var.rotate == FB_ROTATE_CCW) ) {
- psPVRFBInfo->ulWidth = psLINFBInfo->var.yres;
- psPVRFBInfo->ulHeight = psLINFBInfo->var.xres;
- } else {
- psPVRFBInfo->ulWidth = psLINFBInfo->var.xres;
- psPVRFBInfo->ulHeight = psLINFBInfo->var.yres;
- }
-
- psPVRFBInfo->ulByteStride = psLINFBInfo->fix.line_length;
- psPVRFBInfo->ulFBSize = FBSize;
- psPVRFBInfo->ulBufferSize = psPVRFBInfo->ulHeight * psPVRFBInfo->ulByteStride;
-
-
-
-#ifdef CONFIG_OMAP2_DSS
- psPVRFBInfo->ulRoundedBufferSize = psPVRFBInfo->ulBufferSize;
-#else
- psPVRFBInfo->ulRoundedBufferSize = OMAPLFB_PAGE_ROUNDUP(psPVRFBInfo->ulBufferSize);
-#endif
- if(psLINFBInfo->var.bits_per_pixel == 16)
- {
- if((psLINFBInfo->var.red.length == 5) &&
- (psLINFBInfo->var.green.length == 6) &&
- (psLINFBInfo->var.blue.length == 5) &&
- (psLINFBInfo->var.red.offset == 11) &&
- (psLINFBInfo->var.green.offset == 5) &&
- (psLINFBInfo->var.blue.offset == 0) &&
- (psLINFBInfo->var.red.msb_right == 0))
- {
- psPVRFBInfo->ePixelFormat = PVRSRV_PIXEL_FORMAT_RGB565;
- }
- else
- {
- printk("Unknown FB format\n");
- }
- }
- else if(psLINFBInfo->var.bits_per_pixel == 32)
- {
- if((psLINFBInfo->var.red.length == 8) &&
- (psLINFBInfo->var.green.length == 8) &&
- (psLINFBInfo->var.blue.length == 8) &&
- (psLINFBInfo->var.red.offset == 16) &&
- (psLINFBInfo->var.green.offset == 8) &&
- (psLINFBInfo->var.blue.offset == 0) &&
- (psLINFBInfo->var.red.msb_right == 0))
- {
- printk ("PVRSRV_PIXEL_FORMAT_ARGB8888\n");
- psPVRFBInfo->ePixelFormat = PVRSRV_PIXEL_FORMAT_ARGB8888;
- }
- else
- {
- printk("Unknown FB format\n");
- }
- }
- else
- {
- printk("Unknown FB format\n");
- }
-
-
- psDevInfo->sFBInfo.sSysAddr.uiAddr = psPVRFBInfo->sSysAddr.uiAddr;
- psDevInfo->sFBInfo.sCPUVAddr = psPVRFBInfo->sCPUVAddr;
-
-#ifdef CONFIG_OMAP2_DSS
- INIT_WORK (&wq_flipdss2.work, dss2_pan_display);
-#endif
-
- eError = OMAP_OK;
- goto errRelSem;
-
-errModPut:
- module_put(psLINFBOwner);
-errRelSem:
- release_console_sem();
- return eError;
-}
-
-static void DeInitDev(OMAPLFB_DEVINFO *psDevInfo)
-{
- struct fb_info *psLINFBInfo = psDevInfo->psLINFBInfo;
- struct module *psLINFBOwner;
-
- acquire_console_sem();
-
- psLINFBOwner = psLINFBInfo->fbops->owner;
-
- if (psLINFBInfo->fbops->fb_release != NULL)
- {
- (void) psLINFBInfo->fbops->fb_release(psLINFBInfo, 0);
- }
-
- module_put(psLINFBOwner);
-
- release_console_sem();
-}
-
-OMAP_ERROR OMAPLFBInit(void)
-{
- OMAPLFB_DEVINFO *psDevInfo;
-
- psDevInfo = GetAnchorPtr();
-
- if (psDevInfo == NULL)
- {
- PFN_CMD_PROC pfnCmdProcList[OMAPLFB_COMMAND_COUNT];
- IMG_UINT32 aui32SyncCountList[OMAPLFB_COMMAND_COUNT][2];
-
- psDevInfo = (OMAPLFB_DEVINFO *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_DEVINFO));
-
- if(!psDevInfo)
- {
- return (OMAP_ERROR_OUT_OF_MEMORY);
- }
-
-
- memset(psDevInfo, 0, sizeof(OMAPLFB_DEVINFO));
-
-
- SetAnchorPtr((void*)psDevInfo);
-
-
- psDevInfo->ulRefCount = 0;
-
-
- if(InitDev(psDevInfo) != OMAP_OK)
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
-
- if(OMAPLFBGetLibFuncAddr ("PVRGetDisplayClassJTable", &pfnGetPVRJTable) != OMAP_OK)
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
-
-
- if(!(*pfnGetPVRJTable)(&psDevInfo->sPVRJTable))
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
-
-
- spin_lock_init(&psDevInfo->sSwapChainLock);
-
- psDevInfo->psSwapChain = 0;
- psDevInfo->bFlushCommands = OMAP_FALSE;
- psDevInfo->bDeviceSuspended = OMAP_FALSE;
-
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = (IMG_UINT32)(psDevInfo->sFBInfo.ulFBSize / psDevInfo->sFBInfo.ulRoundedBufferSize);
-#if !defined (SUPPORT_TI_DSS_FW)
- /* Limiting the ui32MaxSwapChainBuffers to 3 */
- if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers > 3)
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = 3;
-#endif
-#if 1
- /* for fb_pan_display to work, yres_virtual should be set to number of buffers multiplied yres */
- psDevInfo->psLINFBInfo->var.yres_virtual = psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers * psDevInfo->psLINFBInfo->var.yres;
- if (fb_set_var(psDevInfo->psLINFBInfo, &psDevInfo->psLINFBInfo->var) != 0)
- {
- printk(KERN_INFO DRIVER_PREFIX ": Couldn't set framebuffer paramter: ");
-
- }
-#endif
- if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers == 0)
- {
- psDevInfo->sDisplayInfo.ui32MaxSwapChains = 0;
- psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 0;
- }
- else
- {
- psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1;
- psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 3;
- }
- psDevInfo->sDisplayInfo.ui32MinSwapInterval = 0;
-
- strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
-
- psDevInfo->sDisplayFormat.pixelformat = psDevInfo->sFBInfo.ePixelFormat;
- psDevInfo->sDisplayDim.ui32Width = (IMG_UINT32)psDevInfo->sFBInfo.ulWidth;
- psDevInfo->sDisplayDim.ui32Height = (IMG_UINT32)psDevInfo->sFBInfo.ulHeight;
- psDevInfo->sDisplayDim.ui32ByteStride = (IMG_UINT32)psDevInfo->sFBInfo.ulByteStride;
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Maximum number of swap chain buffers: %lu\n",
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers));
-
-
- psDevInfo->sSystemBuffer.sSysAddr = psDevInfo->sFBInfo.sSysAddr;
- psDevInfo->sSystemBuffer.sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr;
- psDevInfo->sSystemBuffer.ulBufferSize = psDevInfo->sFBInfo.ulRoundedBufferSize;
-
-
-
- psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
- psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
- psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
- psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
- psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
- psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
- psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
- psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
- psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
- psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
- psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
- psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
- psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
- psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
- psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
- psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
- psDevInfo->sDCJTable.pfnSwapToDCSystem = SwapToDCSystem;
- psDevInfo->sDCJTable.pfnSetDCState = SetDCState;
-
-
- if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice (
- &psDevInfo->sDCJTable,
- &psDevInfo->ulDeviceID ) != PVRSRV_OK)
- {
- return (OMAP_ERROR_DEVICE_REGISTER_FAILED);
- }
-
-
- pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
-
-
- aui32SyncCountList[DC_FLIP_COMMAND][0] = 0;
- aui32SyncCountList[DC_FLIP_COMMAND][1] = 2;
-
-
-
-
-
- if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList (psDevInfo->ulDeviceID,
- &pfnCmdProcList[0],
- aui32SyncCountList,
- OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Can't register callback\n");
- return (OMAP_ERROR_CANT_REGISTER_CALLBACK);
- }
-
- }
-
-
- psDevInfo->ulRefCount++;
-
-
- return (OMAP_OK);
-
- }
-
-OMAP_ERROR OMAPLFBDeinit(void)
-{
- OMAPLFB_DEVINFO *psDevInfo, *psDevFirst;
-
- psDevFirst = GetAnchorPtr();
- psDevInfo = psDevFirst;
-
-
- if (psDevInfo == NULL)
- {
- return (OMAP_ERROR_GENERIC);
- }
-
-
- psDevInfo->ulRefCount--;
-
- if (psDevInfo->ulRefCount == 0)
- {
-
- PVRSRV_DC_DISP2SRV_KMJTABLE *psJTable = &psDevInfo->sPVRJTable;
-
- if (psDevInfo->sPVRJTable.pfnPVRSRVRemoveCmdProcList (psDevInfo->ulDeviceID, OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
- {
- return (OMAP_ERROR_GENERIC);
- }
-
-
- if (psJTable->pfnPVRSRVRemoveDCDevice(psDevInfo->ulDeviceID) != PVRSRV_OK)
- {
- return (OMAP_ERROR_GENERIC);
- }
-
- DeInitDev(psDevInfo);
-
-
- OMAPLFBFreeKernelMem(psDevInfo);
- }
-
-
- SetAnchorPtr(NULL);
-
-
- return (OMAP_OK);
-}
-
-
-#if defined(LDM_PLATFORM)
-void OMAPLFBDriverSuspend(void)
-{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr();
- unsigned long ulLockFlags;
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- if (psDevInfo->bDeviceSuspended)
- {
- goto ExitUnlock;
- }
- psDevInfo->bDeviceSuspended = OMAP_TRUE;
-
-
- SetFlushStateInternalNoLock(psDevInfo, OMAP_TRUE);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
-#if defined (SUPPORT_TI_DSS_FW)
- if (psDevInfo->psSwapChain != NULL)
- {
- OMAPLFBDisableDisplayRegisterAccess();
- }
-#endif
- return;
-
-ExitUnlock:
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-}
-
-void OMAPLFBDriverResume(void)
-{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr();
- unsigned long ulLockFlags;
-
- if (psDevInfo->bDeviceSuspended == OMAP_FALSE)
- {
- return;
- }
-#if defined (SUPPORT_TI_DSS_FW)
- if (psDevInfo->psSwapChain != NULL)
- {
- OMAPLFBEnableDisplayRegisterAccess();
- }
-#endif
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- SetFlushStateInternalNoLock(psDevInfo, OMAP_FALSE);
-
- psDevInfo->bDeviceSuspended = OMAP_FALSE;
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-}
-#endif
-
+++ /dev/null
-/**********************************************************************
- *
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful but, except
- * as otherwise stated in writing, without any warranty; without even the
- * implied warranty of merchantability or fitness for a particular purpose.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
- *
- ******************************************************************************/
-
-#ifndef AUTOCONF_INCLUDED
-#include <linux/config.h>
-#endif
-
-#include <linux/version.h>
-#include <linux/module.h>
-
-#include <linux/pci.h>
-#include <asm/uaccess.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-
-
-#include "img_defs.h"
-#include "servicesext.h"
-#include "kerneldisplay.h"
-#include "omaplfb.h"
-#include "pvrmodule.h"
-
-#include <plat/ti81xx-vpss.h>
-
-#if defined(LDM_PLATFORM)
-#include <linux/platform_device.h>
-#endif
-
-#if defined (SUPPORT_TI_DSS_FW)
-#include <asm/io.h>
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))
-#include <plat/display.h>
-#else
-#include <asm/arch-omap/display.h>
-#endif
-#else
-#if !defined (CONFIG_OMAP2_DSS)
-#define DISPC_IRQ_VSYNC 0x0002
-int omap_dispc_request_irq(unsigned long irq_mask, void (*callback)(void *data),
- void *data)
-{
- printk(" omap_dispc_request_irq NOT Implemented \n");
- return (0);
-}
-void omap_dispc_free_irq(unsigned long irq_mask, void (*callback)(void *data),
- void *data)
-{
- printk("omap_dispc_free_irq NOT Implemented \n");
-}
-
-void omap_dispc_set_plane_base(int plane, IMG_UINT32 phys_addr)
-{
- printk (" omap_dispc_set_plane_base NOT Implemented \n");
-}
-
-#else
-#include <plat/display.h>
-#include <linux/console.h>
-#include <linux/fb.h>
-static int pOMAPLFBVSyncISRHandle = 0;
-#endif
-#endif
-
-MODULE_SUPPORTED_DEVICE(DEVNAME);
-
-#define unref__ __attribute__ ((unused))
-
-void *OMAPLFBAllocKernelMem(unsigned long ulSize)
-{
- return kmalloc(ulSize, GFP_KERNEL);
-}
-
-void OMAPLFBFreeKernelMem(void *pvMem)
-{
- kfree(pvMem);
-}
-
-
-OMAP_ERROR OMAPLFBGetLibFuncAddr (char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable)
-{
- if(strcmp("PVRGetDisplayClassJTable", szFunctionName) != 0)
- {
- return (OMAP_ERROR_INVALID_PARAMS);
- }
-
-
- *ppfnFuncTable = PVRGetDisplayClassJTable;
-
- return (OMAP_OK);
-}
-#if !defined (SUPPORT_TI_DSS_FW)
-IMG_VOID OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined (CONFIG_OMAP2_DSS)
- if (pOMAPLFBVSyncISRHandle == 0)
-#endif
- OMAPLFBInstallVSyncISR (psSwapChain);
-}
-
-IMG_VOID OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined (CONFIG_OMAP2_DSS)
- if (pOMAPLFBVSyncISRHandle != 0)
-#endif
- OMAPLFBUninstallVSyncISR (psSwapChain);
-}
-#else
-static void OMAPLFBVSyncWriteReg(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long ulOffset, unsigned long ulValue)
-{
- void *pvRegAddr = (void *)((char *)psSwapChain->pvRegs + ulOffset);
-
-
- writel(ulValue, pvRegAddr);
-}
-
-static unsigned long OMAPLFBVSyncReadReg(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long ulOffset)
-{
- return readl((char *)psSwapChain->pvRegs + ulOffset);
-}
-
-void OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined(SYS_USING_INTERRUPTS)
-
- unsigned long ulInterruptEnable = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_IRQENABLE);
- ulInterruptEnable |= OMAPLCD_INTMASK_VSYNC;
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_IRQENABLE, ulInterruptEnable );
-#endif
-}
-
-void OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined(SYS_USING_INTERRUPTS)
-
- unsigned long ulInterruptEnable = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_IRQENABLE);
- ulInterruptEnable &= ~(OMAPLCD_INTMASK_VSYNC);
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_IRQENABLE, ulInterruptEnable);
-#endif
-}
-#endif
-#if defined(SYS_USING_INTERRUPTS)
-static void
-#if defined (SUPPORT_TI_DSS_FW)
-OMAPLFBVSyncISR(void *arg, struct pt_regs unref__ *regs)
-#else
-#if defined (CONFIG_OMAP2_DSS)
-OMAPLFBVSyncISR(void *arg)
-#else
-OMAPLFBVSyncISR(void *arg)
-#endif
-#endif
-{
- OMAPLFB_SWAPCHAIN *psSwapChain= (OMAPLFB_SWAPCHAIN *)arg;
- (void) OMAPLFBVSyncIHandler(psSwapChain);
-}
-#endif
-#if !defined (SUPPORT_TI_DSS_FW)
-OMAP_ERROR OMAPLFBInstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if !defined (CONFIG_OMAP2_DSS)
- if (omap_dispc_request_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain) != 0)
-#else
- int ret;
- ret = vps_grpx_register_isr ((vsync_callback_t)OMAPLFBVSyncISR, psSwapChain, 0); // fb_idx = 0
- if ( ret == 0)
- pOMAPLFBVSyncISRHandle = 1;
- else
- pOMAPLFBVSyncISRHandle = 0;
-
- if (pOMAPLFBVSyncISRHandle == 0)
-#endif
- return PVRSRV_ERROR_OUT_OF_MEMORY; /* not worth a proper mapping */
- return OMAP_OK;
-}
-
-
-OMAP_ERROR OMAPLFBUninstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if !defined (CONFIG_OMAP2_DSS)
- omap_dispc_free_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain);
-#else
- int ret;
- ret = vps_grpx_unregister_isr((vsync_callback_t) OMAPLFBVSyncISR, (void *)psSwapChain, 0); // fb_idx = 0
-
-#endif
- return OMAP_OK;
-}
-
-
-IMG_VOID OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr)
-{
-#if !defined (CONFIG_OMAP2_DSS)
- omap_dispc_set_plane_base(0, aPhyAddr);
-#else
- OMAPLFBFlipDSS2 (psSwapChain, aPhyAddr);
-#endif
-}
-#else
-
-OMAP_ERROR OMAPLFBInstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
-
- if (omap2_disp_register_isr(OMAPLFBVSyncISR, psSwapChain,
- DISPC_IRQSTATUS_VSYNC))
- {
- printk(KERN_INFO DRIVER_PREFIX ": OMAPLFBInstallVSyncISR: Request OMAPLCD IRQ failed\n");
- return (OMAP_ERROR_INIT_FAILURE);
- }
-
-#endif
- return (OMAP_OK);
-}
-
-
-OMAP_ERROR OMAPLFBUninstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
-
- omap2_disp_unregister_isr(OMAPLFBVSyncISR);
-
-#endif
- return (OMAP_OK);
-}
-
-void OMAPLFBEnableDisplayRegisterAccess(void)
-{
- omap2_disp_get_dss();
-}
-
-void OMAPLFBDisableDisplayRegisterAccess(void)
-{
- omap2_disp_put_dss();
-}
-
-void OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long aPhyAddr)
-{
- unsigned long control;
-
-
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_GFX_BA0, aPhyAddr);
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_GFX_BA1, aPhyAddr);
-
- control = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_CONTROL);
- control |= OMAP_CONTROL_GOLCD;
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_CONTROL, control);
-}
-#endif
-
-#if defined(LDM_PLATFORM)
-
-static OMAP_BOOL bDeviceSuspended;
-
-static void OMAPLFBCommonSuspend(void)
-{
- if (bDeviceSuspended)
- {
- return;
- }
-
- OMAPLFBDriverSuspend();
-
- bDeviceSuspended = OMAP_TRUE;
-}
-
-static int OMAPLFBDriverSuspend_Entry(struct platform_device unref__ *pDevice, pm_message_t unref__ state)
-{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverSuspend_Entry\n"));
-
- OMAPLFBCommonSuspend();
-
- return 0;
-}
-
-static int OMAPLFBDriverResume_Entry(struct platform_device unref__ *pDevice)
-{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverResume_Entry\n"));
-
- OMAPLFBDriverResume();
-
- bDeviceSuspended = OMAP_FALSE;
-
- return 0;
-}
-
-static IMG_VOID OMAPLFBDriverShutdown_Entry(struct platform_device unref__ *pDevice)
-{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverShutdown_Entry\n"));
-
- OMAPLFBCommonSuspend();
-}
-
-static void OMAPLFBDeviceRelease_Entry(struct device unref__ *pDevice)
-{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverRelease_Entry\n"));
-
- OMAPLFBCommonSuspend();
-}
-
-static struct platform_driver omaplfb_driver = {
- .driver = {
- .name = DRVNAME,
- },
- .suspend = OMAPLFBDriverSuspend_Entry,
- .resume = OMAPLFBDriverResume_Entry,
- .shutdown = OMAPLFBDriverShutdown_Entry,
-};
-
-static struct platform_device omaplfb_device = {
- .name = DEVNAME,
- .id = -1,
- .dev = {
- .release = OMAPLFBDeviceRelease_Entry
- }
-};
-#endif
-
-static int __init OMAPLFB_Init(void)
-{
-#if defined(LDM_PLATFORM)
- int error;
-#endif
-
- if(OMAPLFBInit() != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: OMAPLFBInit failed\n");
- return -ENODEV;
- }
-
-#if defined(LDM_PLATFORM)
- if ((error = platform_driver_register(&omaplfb_driver)) != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: Unable to register platform driver (%d)\n", error);
-
- goto ExitDeinit;
- }
-
- if ((error = platform_device_register(&omaplfb_device)) != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: Unable to register platform device (%d)\n", error);
-
- goto ExitDriverUnregister;
- }
-#endif
-
- return 0;
-
-#if defined(LDM_PLATFORM)
-ExitDriverUnregister:
- platform_driver_unregister(&omaplfb_driver);
-
-ExitDeinit:
- if(OMAPLFBDeinit() != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: OMAPLFBDeinit failed\n");
- }
-
- return -ENODEV;
-#endif
-}
-
-static IMG_VOID __exit OMAPLFB_Cleanup(IMG_VOID)
-{
-#if defined (LDM_PLATFORM)
- platform_device_unregister(&omaplfb_device);
- platform_driver_unregister(&omaplfb_driver);
-#endif
-
- if(OMAPLFBDeinit() != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Cleanup: OMAPLFBDeinit failed\n");
- }
-}
-
-module_init(OMAPLFB_Init);
-module_exit(OMAPLFB_Cleanup);
-
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#ifndef __3RDPARTY_DC_DRM_SHARED_H__
+#define __3RDPARTY_DC_DRM_SHARED_H__
+#if defined(SUPPORT_DRI_DRM)
+
+#define PVR_DRM_DISP_CMD_ENTER_VT 1
+#define PVR_DRM_DISP_CMD_LEAVE_VT 2
+
+#define PVR_DRM_DISP_CMD_ON 3
+#define PVR_DRM_DISP_CMD_STANDBY 4
+#define PVR_DRM_DISP_CMD_SUSPEND 5
+#define PVR_DRM_DISP_CMD_OFF 6
+
+#define PVR_DRM_DISP_ARG_CMD 0
+#define PVR_DRM_DISP_ARG_DEV 1
+#define PVR_DRM_DISP_NUM_ARGS 2
+
+#endif
+#endif
+
SYS_USING_INTERRUPTS = 1
SUPPORT_OMAP3430_OMAPFB3 =1
SUPPORT_TI_DSS_FW = 0
+PVR_LINUX_USING_WORKQUEUES = 1
SYS_CFLAGS.$(SYS_USING_INTERRUPTS) += -DSYS_USING_INTERRUPTS
SYS_CFLAGS.$(SUPPORT_OMAP3430_OMAPFB3) += -DSUPPORT_OMAP3430_OMAPFB3
SYS_CFLAGS.$(SUPPORT_TI_DSS_FW) += -DSUPPORT_TI_DSS_FW
+SYS_CFLAGS.$(PVR_LINUX_USING_WORKQUEUES) += -DPVR_LINUX_USING_WORKQUEUES
+SYS_CFLAGS += -DDISPLAY_CONTROLLER=omaplfb
+
EXTRA_CFLAGS = -DLINUX \
-DCONFIG_OMAP2_DSS \
EXTRA_CFLAGS += -DFBDEV_PRESENT
endif
+ifeq ($(SUPPORT_XORG),1)
+EXTRA_CFLAGS += -DSUPPORT_DRI_DRM
+EXTRA_CFLAGS += -DPVR_DISPLAY_CONTROLLER_DRM_IOCTL
+endif
+
+
obj-m := omaplfb.o
omaplfb-y := omaplfb_displayclass.o omaplfb_linux.o
# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
#
#
-#
-MODULE = omaplfb
+MODULE = $(DISPLAY_CONTROLLER)
-INCLUDES = -I$(EURASIAROOT)/include4 \
- -I$(EURASIAROOT)/services4/include \
- -I$(EURASIAROOT)/services4/system/$(PVR_SYSTEM) \
- -I$(EURASIAROOT)/services4/system/include \
+INCLUDES =
-SOURCES = ../omaplfb_displayclass.c \
- ../omaplfb_linux.c
+SOURCES =
SYM_VERS_DEPS = $(EURASIAROOT)/services4/srvkm/env/linux
+include $(EURASIAROOT)/services4/$(DISPLAY_CONTROLLER_DIR)/makefile.linux.common
+
include $(EURASIAROOT)/eurasiacon/build/linux/kbuild/Makefile.kbuild_subdir_common
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+#
+
+ifeq ($(SUPPORT_DRI_DRM),1)
+DISPLAY_CONTROLLER_SOURCES_ROOT = $(KBUILDROOT)/$(DISPLAY_CONTROLLER_DIR)
+MODULE_CFLAGS += -DPVR_DISPLAY_CONTROLLER_DRM_IOCTL
+else
+DISPLAY_CONTROLLER_SOURCES_ROOT = ..
+endif
+
+INCLUDES += -I$(EURASIAROOT)/include4 \
+ -I$(EURASIAROOT)/services4/include \
+ -I$(EURASIAROOT)/services4/system/$(PVR_SYSTEM) \
+ -I$(EURASIAROOT)/services4/system/include \
+ -I$(KERNELDIR)/drivers/video/omap2 \
+ -I$(KERNELDIR)/arch/arm/plat-omap/include
+
+SOURCES += $(DISPLAY_CONTROLLER_SOURCES_ROOT)/omaplfb_displayclass.c \
+ $(DISPLAY_CONTROLLER_SOURCES_ROOT)/omaplfb_linux.c
+++ /dev/null
-kernel//proj/SGX_Graphics/mahesh/sgxsdk/Graphics_SDK_4_03_00_02/GFX_Linux_KM/services4/3rdparty/dc_ti81xx_linux/omaplfb.ko
#ifndef __OMAPLFB_H__
#define __OMAPLFB_H__
-#define OMAPLCD_IRQ 25
-
-#define OMAPLCD_SYSCONFIG 0x0410
-#define OMAPLCD_CONFIG 0x0444
-#define OMAPLCD_DEFAULT_COLOR0 0x044C
-#define OMAPLCD_TIMING_H 0x0464
-#define OMAPLCD_TIMING_V 0x0468
-#define OMAPLCD_POL_FREQ 0x046C
-#define OMAPLCD_DIVISOR 0x0470
-#define OMAPLCD_SIZE_DIG 0x0478
-#define OMAPLCD_SIZE_LCD 0x047C
-#define OMAPLCD_GFX_POSITION 0x0488
-#define OMAPLCD_GFX_SIZE 0x048C
-#define OMAPLCD_GFX_ATTRIBUTES 0x04a0
-#define OMAPLCD_GFX_FIFO_THRESHOLD 0x04a4
-#define OMAPLCD_GFX_WINDOW_SKIP 0x04b4
-
-#define OMAPLCD_IRQSTATUS 0x0418
-#define OMAPLCD_IRQENABLE 0x041c
-#define OMAPLCD_CONTROL 0x0440
-#define OMAPLCD_GFX_BA0 0x0480
-#define OMAPLCD_GFX_BA1 0x0484
-#define OMAPLCD_GFX_ROW_INC 0x04ac
-#define OMAPLCD_GFX_PIX_INC 0x04b0
-#define OMAPLCD_VID1_BA0 0x04bc
-#define OMAPLCD_VID1_BA1 0x04c0
-#define OMAPLCD_VID1_ROW_INC 0x04d8
-#define OMAPLCD_VID1_PIX_INC 0x04dc
-
-#define OMAP_CONTROL_GODIGITAL (1 << 6)
-#define OMAP_CONTROL_GOLCD (1 << 5)
-#define OMAP_CONTROL_DIGITALENABLE (1 << 1)
-#define OMAP_CONTROL_LCDENABLE (1 << 0)
-
-#define OMAPLCD_INTMASK_VSYNC (1 << 1)
-#define OMAPLCD_INTMASK_OFF 0
-
-typedef void * OMAP_HANDLE;
-
-typedef enum tag_omap_bool
-{
- OMAP_FALSE = 0,
- OMAP_TRUE = 1,
-} OMAP_BOOL, *OMAP_PBOOL;
+#include <linux/version.h>
-typedef struct OMAPLFB_BUFFER_TAG
-{
- unsigned long ulBufferSize;
+#include <asm/atomic.h>
-
-
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/notifier.h>
+#include <linux/mutex.h>
- IMG_SYS_PHYADDR sSysAddr;
- IMG_CPU_VIRTADDR sCPUVAddr;
- PVRSRV_SYNC_DATA *psSyncData;
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
- struct OMAPLFB_BUFFER_TAG *psNext;
-} OMAPLFB_BUFFER;
+#define unref__ __attribute__ ((unused))
+
+typedef void * OMAPLFB_HANDLE;
+
+typedef bool OMAPLFB_BOOL, *OMAPLFB_PBOOL;
+#define OMAPLFB_FALSE false
+#define OMAPLFB_TRUE true
+
+typedef atomic_t OMAPLFB_ATOMIC_BOOL;
-typedef struct OMAPLFB_VSYNC_FLIP_ITEM_TAG
+typedef atomic_t OMAPLFB_ATOMIC_INT;
+
+typedef struct OMAPLFB_BUFFER_TAG
{
-
+ struct OMAPLFB_BUFFER_TAG *psNext;
+ struct OMAPLFB_DEVINFO_TAG *psDevInfo;
+ struct work_struct sWork;
- OMAP_HANDLE hCmdComplete;
-
- unsigned long ulSwapInterval;
-
- OMAP_BOOL bValid;
-
- OMAP_BOOL bFlipped;
- OMAP_BOOL bCmdCompleted;
+ unsigned long ulYOffset;
+ IMG_SYS_PHYADDR sSysAddr;
+ IMG_CPU_VIRTADDR sCPUVAddr;
+ PVRSRV_SYNC_DATA *psSyncData;
-
- IMG_SYS_PHYADDR* sSysAddr;
-} OMAPLFB_VSYNC_FLIP_ITEM;
+ OMAPLFB_HANDLE hCmdComplete;
+ unsigned long ulSwapInterval;
+} OMAPLFB_BUFFER;
-typedef struct PVRPDP_SWAPCHAIN_TAG
+typedef struct OMAPLFB_SWAPCHAIN_TAG
{
- unsigned long ulBufferCount;
-
- OMAPLFB_BUFFER *psBuffer;
-
- OMAPLFB_VSYNC_FLIP_ITEM *psVSyncFlips;
-
-
- unsigned long ulInsertIndex;
-
-
- unsigned long ulRemoveIndex;
+ unsigned int uiSwapChainID;
- void *pvRegs;
+ unsigned long ulBufferCount;
- PVRSRV_DC_DISP2SRV_KMJTABLE *psPVRJTable;
+ OMAPLFB_BUFFER *psBuffer;
- OMAP_BOOL bFlushCommands;
+ struct workqueue_struct *psWorkQueue;
- unsigned long ulSetFlushStateRefCount;
+ OMAPLFB_BOOL bNotVSynced;
- OMAP_BOOL bBlanked;
+ int iBlankEvents;
- spinlock_t *psSwapChainLock;
+ unsigned int uiFBDevID;
} OMAPLFB_SWAPCHAIN;
typedef struct OMAPLFB_FBINFO_TAG
typedef struct OMAPLFB_DEVINFO_TAG
{
- unsigned int uiDeviceID;
+
+ unsigned int uiFBDevID;
+
+
+ unsigned int uiPVRDevID;
+
+
+ struct mutex sCreateSwapChainMutex;
OMAPLFB_BUFFER sSystemBuffer;
OMAPLFB_FBINFO sFBInfo;
- unsigned long ulRefCount;
+ OMAPLFB_SWAPCHAIN *psSwapChain;
- OMAPLFB_SWAPCHAIN *psSwapChain;
+ unsigned int uiSwapChainID;
- OMAP_BOOL bFlushCommands;
+ OMAPLFB_ATOMIC_BOOL sFlushCommands;
struct fb_info *psLINFBInfo;
struct notifier_block sLINNotifBlock;
- OMAP_BOOL bDeviceSuspended;
-
-
- spinlock_t sSwapChainLock;
-
-
- IMG_DEV_VIRTADDR sDisplayDevVAddr;
+ IMG_DEV_VIRTADDR sDisplayDevVAddr;
DISPLAY_INFO sDisplayInfo;
DISPLAY_DIMS sDisplayDim;
+
+ OMAPLFB_ATOMIC_BOOL sBlanked;
+
+
+ OMAPLFB_ATOMIC_INT sBlankEvents;
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+
+ OMAPLFB_ATOMIC_BOOL sEarlySuspendFlag;
+
+ struct early_suspend sEarlySuspend;
+#endif
+
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFB_ATOMIC_BOOL sLeaveVT;
+#endif
+
} OMAPLFB_DEVINFO;
#define OMAPLFB_PAGE_SIZE 4096
-#define OMAPLFB_PAGE_MASK (OMAPLFB_PAGE_SIZE - 1)
-#define OMAPLFB_PAGE_TRUNC (~OMAPLFB_PAGE_MASK)
-
-#define OMAPLFB_PAGE_ROUNDUP(x) (((x) + OMAPLFB_PAGE_MASK) & OMAPLFB_PAGE_TRUNC)
#ifdef DEBUG
#define DEBUG_PRINTK(x) printk x
#define DEVNAME DRVNAME
#define DRIVER_PREFIX DRVNAME
-typedef enum _OMAP_ERROR_
+typedef enum _OMAPLFB_ERROR_
{
- OMAP_OK = 0,
- OMAP_ERROR_GENERIC = 1,
- OMAP_ERROR_OUT_OF_MEMORY = 2,
- OMAP_ERROR_TOO_FEW_BUFFERS = 3,
- OMAP_ERROR_INVALID_PARAMS = 4,
- OMAP_ERROR_INIT_FAILURE = 5,
- OMAP_ERROR_CANT_REGISTER_CALLBACK = 6,
- OMAP_ERROR_INVALID_DEVICE = 7,
- OMAP_ERROR_DEVICE_REGISTER_FAILED = 8
-} OMAP_ERROR;
-
+ OMAPLFB_OK = 0,
+ OMAPLFB_ERROR_GENERIC = 1,
+ OMAPLFB_ERROR_OUT_OF_MEMORY = 2,
+ OMAPLFB_ERROR_TOO_FEW_BUFFERS = 3,
+ OMAPLFB_ERROR_INVALID_PARAMS = 4,
+ OMAPLFB_ERROR_INIT_FAILURE = 5,
+ OMAPLFB_ERROR_CANT_REGISTER_CALLBACK = 6,
+ OMAPLFB_ERROR_INVALID_DEVICE = 7,
+ OMAPLFB_ERROR_DEVICE_REGISTER_FAILED = 8,
+ OMAPLFB_ERROR_SET_UPDATE_MODE_FAILED = 9
+} OMAPLFB_ERROR;
+
+typedef enum _OMAPLFB_UPDATE_MODE_
+{
+ OMAPLFB_UPDATE_MODE_UNDEFINED = 0,
+ OMAPLFB_UPDATE_MODE_MANUAL = 1,
+ OMAPLFB_UPDATE_MODE_AUTO = 2,
+ OMAPLFB_UPDATE_MODE_DISABLED = 3
+} OMAPLFB_UPDATE_MODE;
#ifndef UNREFERENCED_PARAMETER
#define UNREFERENCED_PARAMETER(param) (param) = (param)
#endif
-OMAP_ERROR OMAPLFBInit(void);
-OMAP_ERROR OMAPLFBDeinit(void);
-
-#ifdef LDM_PLATFORM
-void OMAPLFBDriverSuspend(void);
-void OMAPLFBDriverResume(void);
-#endif
+OMAPLFB_ERROR OMAPLFBInit(void);
+OMAPLFB_ERROR OMAPLFBDeInit(void);
+OMAPLFB_DEVINFO *OMAPLFBGetDevInfoPtr(unsigned uiFBDevID);
+unsigned OMAPLFBMaxFBDevIDPlusOne(void);
void *OMAPLFBAllocKernelMem(unsigned long ulSize);
void OMAPLFBFreeKernelMem(void *pvMem);
-OMAP_ERROR OMAPLFBGetLibFuncAddr(char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable);
-OMAP_ERROR OMAPLFBInstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain);
-OMAP_ERROR OMAPLFBUninstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain);
-OMAP_BOOL OMAPLFBVSyncIHandler(OMAPLFB_SWAPCHAIN *psSwapChain);
-void OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain);
-void OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain);
-#if defined (SUPPORT_TI_DSS_FW)
-void OMAPLFBEnableDisplayRegisterAccess(void);
-void OMAPLFBDisableDisplayRegisterAccess(void);
-void OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long aPhyAddr);
-#endif
-#if defined (CONFIG_OMAP2_DSS)
-IMG_VOID OMAPLFBFlipDSS2(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr);
-#endif
+OMAPLFB_ERROR OMAPLFBGetLibFuncAddr(char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable);
+OMAPLFB_ERROR OMAPLFBCreateSwapQueue (OMAPLFB_SWAPCHAIN *psSwapChain);
+void OMAPLFBDestroySwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain);
+void OMAPLFBInitBufferForSwap(OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBSwapHandler(OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBQueueBufferForSwap(OMAPLFB_SWAPCHAIN *psSwapChain, OMAPLFB_BUFFER *psBuffer);
+void OMAPLFBFlip(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_BUFFER *psBuffer);
+OMAPLFB_UPDATE_MODE OMAPLFBGetUpdateMode(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBSetUpdateMode(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_UPDATE_MODE eMode);
+OMAPLFB_BOOL OMAPLFBWaitForVSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBManualSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_BOOL OMAPLFBCheckModeAndSync(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBUnblankDisplay(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBEnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo);
+OMAPLFB_ERROR OMAPLFBDisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLockInit(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLockDeInit(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainLock(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBCreateSwapChainUnLock(OMAPLFB_DEVINFO *psDevInfo);
+void OMAPLFBAtomicBoolInit(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal);
+void OMAPLFBAtomicBoolDeInit(OMAPLFB_ATOMIC_BOOL *psAtomic);
+void OMAPLFBAtomicBoolSet(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal);
+OMAPLFB_BOOL OMAPLFBAtomicBoolRead(OMAPLFB_ATOMIC_BOOL *psAtomic);
+void OMAPLFBAtomicIntInit(OMAPLFB_ATOMIC_INT *psAtomic, int iVal);
+void OMAPLFBAtomicIntDeInit(OMAPLFB_ATOMIC_INT *psAtomic);
+void OMAPLFBAtomicIntSet(OMAPLFB_ATOMIC_INT *psAtomic, int iVal);
+int OMAPLFBAtomicIntRead(OMAPLFB_ATOMIC_INT *psAtomic);
+void OMAPLFBAtomicIntInc(OMAPLFB_ATOMIC_INT *psAtomic);
-IMG_VOID OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr);
#endif
#include <linux/module.h>
#include <linux/string.h>
#include <linux/notifier.h>
-#include <linux/spinlock.h>
#include "img_defs.h"
#include "servicesext.h"
#include "kerneldisplay.h"
#include "omaplfb.h"
-static void *gpvAnchor;
+#define OMAPLFB_COMMAND_COUNT 1
-static int fb_idx = 0;
+#define OMAPLFB_VSYNC_SETTLE_COUNT 5
-#define OMAPLFB_COMMAND_COUNT 1
+#define OMAPLFB_MAX_NUM_DEVICES 1 // FB_MAX
+#if (OMAPLFB_MAX_NUM_DEVICES > FB_MAX)
+#error "OMAPLFB_MAX_NUM_DEVICES must not be greater than FB_MAX"
+#endif
-static PFN_DC_GET_PVRJTABLE pfnGetPVRJTable = 0;
+static OMAPLFB_DEVINFO *gapsDevInfo[OMAPLFB_MAX_NUM_DEVICES];
-static OMAPLFB_DEVINFO * GetAnchorPtr(void)
-{
- return (OMAPLFB_DEVINFO *)gpvAnchor;
-}
+static PFN_DC_GET_PVRJTABLE gpfnGetPVRJTable = NULL;
-static void SetAnchorPtr(OMAPLFB_DEVINFO *psDevInfo)
+static inline unsigned long RoundUpToMultiple(unsigned long x, unsigned long y)
{
- gpvAnchor = (void*)psDevInfo;
+ unsigned long div = x / y;
+ unsigned long rem = x % y;
+
+ return (div + ((rem == 0) ? 0 : 1)) * y;
}
-
-static void FlushInternalVSyncQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
+static unsigned long GCD(unsigned long x, unsigned long y)
{
- OMAPLFB_VSYNC_FLIP_ITEM *psFlipItem;
- unsigned long ulMaxIndex;
- unsigned long i;
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- ulMaxIndex = psSwapChain->ulBufferCount - 1;
-
- for(i = 0; i < psSwapChain->ulBufferCount; i++)
+ while (y != 0)
{
- if (psFlipItem->bValid == OMAP_FALSE)
- {
- continue;
- }
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": FlushInternalVSyncQueue: Flushing swap buffer (index %lu)\n", psSwapChain->ulRemoveIndex));
-
- if(psFlipItem->bFlipped == OMAP_FALSE)
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psFlipItem->sSysAddr);
- }
-
- if(psFlipItem->bCmdCompleted == OMAP_FALSE)
- {
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": FlushInternalVSyncQueue: Calling command complete for swap buffer (index %lu)\n", psSwapChain->ulRemoveIndex));
+ unsigned long r = x % y;
+ x = y;
+ y = r;
+ }
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete((IMG_HANDLE)psFlipItem->hCmdComplete, IMG_TRUE);
- }
+ return x;
+}
-
- psSwapChain->ulRemoveIndex++;
-
- if(psSwapChain->ulRemoveIndex > ulMaxIndex)
- {
- psSwapChain->ulRemoveIndex = 0;
- }
+static unsigned long LCM(unsigned long x, unsigned long y)
+{
+ unsigned long gcd = GCD(x, y);
-
- psFlipItem->bFlipped = OMAP_FALSE;
- psFlipItem->bCmdCompleted = OMAP_FALSE;
- psFlipItem->bValid = OMAP_FALSE;
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- }
+ return (gcd == 0) ? 0 : ((x / gcd) * y);
+}
- psSwapChain->ulInsertIndex = 0;
- psSwapChain->ulRemoveIndex = 0;
+unsigned OMAPLFBMaxFBDevIDPlusOne(void)
+{
+ return OMAPLFB_MAX_NUM_DEVICES;
}
-static void SetFlushStateInternalNoLock(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
+OMAPLFB_DEVINFO *OMAPLFBGetDevInfoPtr(unsigned uiFBDevID)
{
- OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
+ WARN_ON(uiFBDevID >= OMAPLFBMaxFBDevIDPlusOne());
- if (psSwapChain == NULL)
+ if (uiFBDevID >= OMAPLFB_MAX_NUM_DEVICES)
{
- return;
+ return NULL;
}
- if (bFlushState)
- {
- if (psSwapChain->ulSetFlushStateRefCount == 0)
- {
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
- psSwapChain->bFlushCommands = OMAP_TRUE;
- FlushInternalVSyncQueue(psSwapChain);
- }
- psSwapChain->ulSetFlushStateRefCount++;
- }
- else
- {
- if (psSwapChain->ulSetFlushStateRefCount != 0)
- {
- psSwapChain->ulSetFlushStateRefCount--;
- if (psSwapChain->ulSetFlushStateRefCount == 0)
- {
- psSwapChain->bFlushCommands = OMAP_FALSE;
- OMAPLFBEnableVSyncInterrupt(psSwapChain);
- }
- }
- }
+ return gapsDevInfo[uiFBDevID];
}
-static IMG_VOID SetFlushStateInternal(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
+static inline void OMAPLFBSetDevInfoPtr(unsigned uiFBDevID, OMAPLFB_DEVINFO *psDevInfo)
{
- unsigned long ulLockFlags;
-
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+ WARN_ON(uiFBDevID >= OMAPLFB_MAX_NUM_DEVICES);
- SetFlushStateInternalNoLock(psDevInfo, bFlushState);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
+ if (uiFBDevID < OMAPLFB_MAX_NUM_DEVICES)
+ {
+ gapsDevInfo[uiFBDevID] = psDevInfo;
+ }
}
-static void SetFlushStateExternal(OMAPLFB_DEVINFO* psDevInfo,
- OMAP_BOOL bFlushState)
+static inline OMAPLFB_BOOL SwapChainHasChanged(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_SWAPCHAIN *psSwapChain)
{
- unsigned long ulLockFlags;
+ return (psDevInfo->psSwapChain != psSwapChain) ||
+ (psDevInfo->uiSwapChainID != psSwapChain->uiSwapChainID);
+}
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+static inline OMAPLFB_BOOL DontWaitForVSync(OMAPLFB_DEVINFO *psDevInfo)
+{
+ OMAPLFB_BOOL bDontWait;
-
- if (psDevInfo->bFlushCommands != bFlushState)
- {
- psDevInfo->bFlushCommands = bFlushState;
- SetFlushStateInternalNoLock(psDevInfo, bFlushState);
- }
+ bDontWait = OMAPLFBAtomicBoolRead(&psDevInfo->sBlanked) ||
+ OMAPLFBAtomicBoolRead(&psDevInfo->sFlushCommands);
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ bDontWait = bDontWait || OMAPLFBAtomicBoolRead(&psDevInfo->sEarlySuspendFlag);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ bDontWait = bDontWait || OMAPLFBAtomicBoolRead(&psDevInfo->sLeaveVT);
+#endif
+ return bDontWait;
}
static IMG_VOID SetDCState(IMG_HANDLE hDevice, IMG_UINT32 ui32State)
switch (ui32State)
{
case DC_STATE_FLUSH_COMMANDS:
- SetFlushStateExternal(psDevInfo, OMAP_TRUE);
+ OMAPLFBAtomicBoolSet(&psDevInfo->sFlushCommands, OMAPLFB_TRUE);
break;
case DC_STATE_NO_FLUSH_COMMANDS:
- SetFlushStateExternal(psDevInfo, OMAP_FALSE);
+ OMAPLFBAtomicBoolSet(&psDevInfo->sFlushCommands, OMAPLFB_FALSE);
break;
default:
break;
}
-
- return;
}
-static int FrameBufferEvents(struct notifier_block *psNotif,
- unsigned long event, void *data)
+static PVRSRV_ERROR OpenDCDevice(IMG_UINT32 uiPVRDevID,
+ IMG_HANDLE *phDevice,
+ PVRSRV_SYNC_DATA* psSystemBufferSyncData)
{
OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- struct fb_event *psFBEvent = (struct fb_event *)data;
- OMAP_BOOL bBlanked;
-
-
- if (event != FB_EVENT_BLANK)
- {
- return 0;
- }
-
- psDevInfo = GetAnchorPtr();
- psSwapChain = psDevInfo->psSwapChain;
-
- bBlanked = (*(IMG_INT *)psFBEvent->data != 0) ? OMAP_TRUE: OMAP_FALSE;
+ OMAPLFB_ERROR eError;
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
- if (bBlanked != psSwapChain->bBlanked)
+ for (i = 0; i < uiMaxFBDevIDPlusOne; i++)
{
- psSwapChain->bBlanked = bBlanked;
-
- if (bBlanked)
+ psDevInfo = OMAPLFBGetDevInfoPtr(i);
+ if (psDevInfo != NULL && psDevInfo->uiPVRDevID == uiPVRDevID)
{
-
- SetFlushStateInternal(psDevInfo, OMAP_TRUE);
- }
- else
- {
-
- SetFlushStateInternal(psDevInfo, OMAP_FALSE);
+ break;
}
}
-
- return 0;
-}
-
-
-static OMAP_ERROR UnblankDisplay(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
-#ifdef FBDEV_PRESENT
-
- acquire_console_sem();
- res = fb_blank(psDevInfo->psLINFBInfo, 0);
- release_console_sem();
-#if !defined (CONFIG_OMAP2_DSS)
- if (res != 0 && res != -EINVAL)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_blank failed (%d)", res);
- return (OMAP_ERROR_GENERIC);
- }
-#endif
-#endif
- return (OMAP_OK);
-}
-
-#if defined (CONFIG_OMAP2_DSS)
-#include <linux/workqueue.h>
-struct wq_flip {
- struct fb_var_screeninfo var;
- struct fb_info *psLINFBInfo;
- struct work_struct work;
-};
-struct wq_flip wq_flipdss2;
-
-static void dss2_pan_display (struct work_struct *work)
-{
- struct wq_flip *ptrwq_flip =
- container_of(work, struct wq_flip, work);
- if (ptrwq_flip->psLINFBInfo->fbops->fb_pan_display != NULL) {
- ptrwq_flip->psLINFBInfo->fbops->fb_pan_display (&ptrwq_flip->var, ptrwq_flip->psLINFBInfo);
-
- }
-
-}
-
-/*
- * Flip implementation for DSS2 using fb_pan_display
- * */
-IMG_VOID OMAPLFBFlipDSS2(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr)
-{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr ();
- struct fb_info *psLINFBInfo = psDevInfo->psLINFBInfo;
- memcpy ( &wq_flipdss2.var, &psLINFBInfo->var, sizeof(struct fb_var_screeninfo));
- wq_flipdss2.var.yoffset = (aPhyAddr-psLINFBInfo->fix.smem_start)/psLINFBInfo->fix.line_length;
- wq_flipdss2.psLINFBInfo = psLINFBInfo;
- schedule_work (&wq_flipdss2.work);
-}
-#endif
-
-
-
-static OMAP_ERROR EnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
- OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
- OMAP_ERROR eError;
-
-
- memset(&psDevInfo->sLINNotifBlock, 0, sizeof(psDevInfo->sLINNotifBlock));
-
- psDevInfo->sLINNotifBlock.notifier_call = FrameBufferEvents;
-
- psSwapChain->bBlanked = OMAP_FALSE;
-
- res = fb_register_client(&psDevInfo->sLINNotifBlock);
- if (res != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_register_client failed (%d)", res);
-
- return (OMAP_ERROR_GENERIC);
- }
-
- eError = UnblankDisplay(psDevInfo);
- if (eError != OMAP_OK)
+ if (i == uiMaxFBDevIDPlusOne)
{
DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
- ": UnblankDisplay failed (%d)", eError));
- return eError;
- }
-
- return (OMAP_OK);
-}
-
-static OMAP_ERROR DisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
-{
- int res;
-
-
- res = fb_unregister_client(&psDevInfo->sLINNotifBlock);
- if (res != 0)
- {
- printk(KERN_WARNING DRIVER_PREFIX
- ": fb_unregister_client failed (%d)", res);
- return (OMAP_ERROR_GENERIC);
+ ": %s: PVR Device %u not found\n", __FUNCTION__, uiPVRDevID));
+ return PVRSRV_ERROR_INVALID_DEVICE;
}
- return (OMAP_OK);
-}
-
-static PVRSRV_ERROR OpenDCDevice(IMG_UINT32 ui32DeviceID,
- IMG_HANDLE *phDevice,
- PVRSRV_SYNC_DATA* psSystemBufferSyncData)
-{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAP_ERROR eError;
-
- UNREFERENCED_PARAMETER(ui32DeviceID);
-
- psDevInfo = GetAnchorPtr();
-
psDevInfo->sSystemBuffer.psSyncData = psSystemBufferSyncData;
- eError = UnblankDisplay(psDevInfo);
- if (eError != OMAP_OK)
+ eError = OMAPLFBUnblankDisplay(psDevInfo);
+ if (eError != OMAPLFB_OK)
{
DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
- ": UnblankDisplay failed (%d)", eError));
- return (PVRSRV_ERROR_UNBLANK_DISPLAY_FAILED);
+ ": %s: Device %u: OMAPLFBUnblankDisplay failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eError));
+ return PVRSRV_ERROR_UNBLANK_DISPLAY_FAILED;
}
*phDevice = (IMG_HANDLE)psDevInfo;
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
static PVRSRV_ERROR CloseDCDevice(IMG_HANDLE hDevice)
{
- UNREFERENCED_PARAMETER(hDevice);
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFB_DEVINFO *psDevInfo = (OMAPLFB_DEVINFO *)hDevice;
- return (PVRSRV_OK);
+ OMAPLFBAtomicBoolSet(&psDevInfo->sLeaveVT, OMAPLFB_FALSE);
+ (void) OMAPLFBUnblankDisplay(psDevInfo);
+#else
+ UNREFERENCED_PARAMETER(hDevice);
+#endif
+ return PVRSRV_OK;
}
static PVRSRV_ERROR EnumDCFormats(IMG_HANDLE hDevice,
if(!hDevice || !pui32NumFormats)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
psFormat[0] = psDevInfo->sDisplayFormat;
}
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
static PVRSRV_ERROR EnumDCDims(IMG_HANDLE hDevice,
if(!hDevice || !psFormat || !pui32NumDims)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
psDim[0] = psDevInfo->sDisplayDim;
}
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
if(!hDevice || !phBuffer)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
*phBuffer = (IMG_HANDLE)&psDevInfo->sSystemBuffer;
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
if(!hDevice || !psDCInfo)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
*psDCInfo = psDevInfo->sDisplayInfo;
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
static PVRSRV_ERROR GetDCBufferAddr(IMG_HANDLE hDevice,
if(!hDevice)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
+
if(!hBuffer)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
- psSystemBuffer = (OMAPLFB_BUFFER *)hBuffer;
if (!ppsSysAddr)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
- *ppsSysAddr = &psSystemBuffer->sSysAddr;
-
if (!pui32ByteSize)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
+ psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
+
+ psSystemBuffer = (OMAPLFB_BUFFER *)hBuffer;
+
+ *ppsSysAddr = &psSystemBuffer->sSysAddr;
+
*pui32ByteSize = (IMG_UINT32)psDevInfo->sFBInfo.ulBufferSize;
if (ppvCpuVAddr)
*pbIsContiguous = IMG_TRUE;
}
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
static PVRSRV_ERROR CreateDCSwapChain(IMG_HANDLE hDevice,
OMAPLFB_DEVINFO *psDevInfo;
OMAPLFB_SWAPCHAIN *psSwapChain;
OMAPLFB_BUFFER *psBuffer;
- OMAPLFB_VSYNC_FLIP_ITEM *psVSyncFlips;
IMG_UINT32 i;
- PVRSRV_ERROR eError = PVRSRV_ERROR_NOT_SUPPORTED;
- unsigned long ulLockFlags;
+ PVRSRV_ERROR eError;
IMG_UINT32 ui32BuffersToSkip;
UNREFERENCED_PARAMETER(ui32OEMFlags);
- UNREFERENCED_PARAMETER(pui32SwapChainID);
if(!hDevice
|| !ppsSyncData
|| !phSwapChain)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
if (psDevInfo->sDisplayInfo.ui32MaxSwapChains == 0)
{
- return (PVRSRV_ERROR_NOT_SUPPORTED);
+ return PVRSRV_ERROR_NOT_SUPPORTED;
}
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
if(psDevInfo->psSwapChain != NULL)
{
- return (PVRSRV_ERROR_FLIP_CHAIN_EXISTS);
+ eError = PVRSRV_ERROR_FLIP_CHAIN_EXISTS;
+ goto ExitUnLock;
}
if(ui32BufferCount > psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers)
{
- return (PVRSRV_ERROR_TOOMANYBUFFERS);
+ eError = PVRSRV_ERROR_TOOMANYBUFFERS;
+ goto ExitUnLock;
}
if ((psDevInfo->sFBInfo.ulRoundedBufferSize * (unsigned long)ui32BufferCount) > psDevInfo->sFBInfo.ulFBSize)
{
- return (PVRSRV_ERROR_TOOMANYBUFFERS);
+ eError = PVRSRV_ERROR_TOOMANYBUFFERS;
+ goto ExitUnLock;
}
|| psDstSurfAttrib->sDims.ui32Height != psDevInfo->sDisplayDim.ui32Height)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
}
if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat
|| psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
}
UNREFERENCED_PARAMETER(ui32Flags);
+#if defined(PVR_OMAPFB3_UPDATE_MODE)
+ if (!OMAPLFBSetUpdateMode(psDevInfo, PVR_OMAPFB3_UPDATE_MODE))
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't set frame buffer update mode %d\n", __FUNCTION__, psDevInfo->uiFBDevID, PVR_OMAPFB3_UPDATE_MODE);
+ }
+#endif
psSwapChain = (OMAPLFB_SWAPCHAIN*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_SWAPCHAIN));
if(!psSwapChain)
{
- return (PVRSRV_ERROR_OUT_OF_MEMORY);
+ eError = PVRSRV_ERROR_OUT_OF_MEMORY;
+ goto ExitUnLock;
}
psBuffer = (OMAPLFB_BUFFER*)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_BUFFER) * ui32BufferCount);
goto ErrorFreeSwapChain;
}
- psVSyncFlips = (OMAPLFB_VSYNC_FLIP_ITEM *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_VSYNC_FLIP_ITEM) * ui32BufferCount);
- if (!psVSyncFlips)
- {
- eError = PVRSRV_ERROR_OUT_OF_MEMORY;
- goto ErrorFreeBuffers;
- }
-
psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount;
psSwapChain->psBuffer = psBuffer;
- psSwapChain->psVSyncFlips = psVSyncFlips;
- psSwapChain->ulInsertIndex = 0;
- psSwapChain->ulRemoveIndex = 0;
- psSwapChain->psPVRJTable = &psDevInfo->sPVRJTable;
- psSwapChain->psSwapChainLock = &psDevInfo->sSwapChainLock;
+ psSwapChain->bNotVSynced = OMAPLFB_TRUE;
+ psSwapChain->uiFBDevID = psDevInfo->uiFBDevID;
for(i=0; i<ui32BufferCount-1; i++)
psBuffer[i].sSysAddr.uiAddr = psDevInfo->sFBInfo.sSysAddr.uiAddr + ui32BufferOffset;
psBuffer[i].sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr + ui32BufferOffset;
- }
+ psBuffer[i].ulYOffset = ui32BufferOffset / psDevInfo->sFBInfo.ulByteStride;
+ psBuffer[i].psDevInfo = psDevInfo;
-
- for(i=0; i<ui32BufferCount; i++)
- {
- psVSyncFlips[i].bValid = OMAP_FALSE;
- psVSyncFlips[i].bFlipped = OMAP_FALSE;
- psVSyncFlips[i].bCmdCompleted = OMAP_FALSE;
+ OMAPLFBInitBufferForSwap(&psBuffer[i]);
}
-#if defined (SUPPORT_TI_DSS_FW)
- OMAPLFBEnableDisplayRegisterAccess();
-
-
- psSwapChain->pvRegs = ioremap(psDevInfo->psLINFBInfo->fix.mmio_start, psDevInfo->psLINFBInfo->fix.mmio_len);
- if (psSwapChain->pvRegs == NULL)
- {
- eError = PVRSRV_ERROR_BAD_MAPPING;
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't map registers needed for flipping\n");
- goto ErrorDisableDisplayRegisters;
- }
-#endif
- if (OMAPLFBInstallVSyncISR(psSwapChain) != OMAP_OK)
+ if (OMAPLFBCreateSwapQueue(psSwapChain) != OMAPLFB_OK)
{
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Failed to create workqueue\n", __FUNCTION__, psDevInfo->uiFBDevID);
eError = PVRSRV_ERROR_UNABLE_TO_INSTALL_ISR;
- printk(KERN_WARNING DRIVER_PREFIX ": ISR handler failed to register\n");
- goto ErrorUnmapRegisters;
+ goto ErrorFreeBuffers;
}
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-
- psDevInfo->psSwapChain = psSwapChain;
-
-
- psSwapChain->bFlushCommands = psDevInfo->bFlushCommands;
-
- if (psSwapChain->bFlushCommands)
+ if (OMAPLFBEnableLFBEventNotification(psDevInfo)!= OMAPLFB_OK)
{
- psSwapChain->ulSetFlushStateRefCount = 1;
- }
- else
- {
- psSwapChain->ulSetFlushStateRefCount = 0;
- OMAPLFBEnableVSyncInterrupt(psSwapChain);
+ eError = PVRSRV_ERROR_UNABLE_TO_ENABLE_EVENT;
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't enable framebuffer event notification\n", __FUNCTION__, psDevInfo->uiFBDevID);
+ goto ErrorDestroySwapQueue;
}
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
- if (EnableLFBEventNotification(psDevInfo)!= OMAP_OK)
+ psDevInfo->uiSwapChainID++;
+ if (psDevInfo->uiSwapChainID == 0)
{
- eError = PVRSRV_ERROR_UNABLE_TO_ENABLE_EVENT;
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't enable framebuffer event notification\n");
- goto ErrorUninstallVSyncInterrupt;
+ psDevInfo->uiSwapChainID++;
}
-
+ psSwapChain->uiSwapChainID = psDevInfo->uiSwapChainID;
+
+ psDevInfo->psSwapChain = psSwapChain;
+
+ *pui32SwapChainID = psDevInfo->uiSwapChainID;
+
*phSwapChain = (IMG_HANDLE)psSwapChain;
- return (PVRSRV_OK);
+ eError = PVRSRV_OK;
+ goto ExitUnLock;
-ErrorUninstallVSyncInterrupt:
- if(OMAPLFBUninstallVSyncISR(psSwapChain) != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't uninstall VSync ISR\n");
- }
-ErrorUnmapRegisters:
-#if defined (SUPPORT_TI_DSS_FW)
- iounmap(psSwapChain->pvRegs);
-ErrorDisableDisplayRegisters:
- OMAPLFBDisableDisplayRegisterAccess();
-#endif
- OMAPLFBFreeKernelMem(psVSyncFlips);
+ErrorDestroySwapQueue:
+ OMAPLFBDestroySwapQueue(psSwapChain);
ErrorFreeBuffers:
OMAPLFBFreeKernelMem(psBuffer);
ErrorFreeSwapChain:
OMAPLFBFreeKernelMem(psSwapChain);
-
+ExitUnLock:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
return eError;
}
{
OMAPLFB_DEVINFO *psDevInfo;
OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long ulLockFlags;
- OMAP_ERROR eError;
+ OMAPLFB_ERROR eError;
+
if(!hDevice || !hSwapChain)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- eError = DisableLFBEventNotification(psDevInfo);
- if (eError != OMAP_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't disable framebuffer event notification\n");
- }
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+ OMAPLFBCreateSwapChainLock(psDevInfo);
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
-
-
- FlushInternalVSyncQueue(psSwapChain);
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: Swap chain mismatch\n", __FUNCTION__, psDevInfo->uiFBDevID);
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psDevInfo->sFBInfo.sSysAddr.uiAddr);
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto ExitUnLock;
+ }
- psDevInfo->psSwapChain = NULL;
+ OMAPLFBDestroySwapQueue(psSwapChain);
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- if(OMAPLFBUninstallVSyncISR(psSwapChain) != OMAP_OK)
+ eError = OMAPLFBDisableLFBEventNotification(psDevInfo);
+ if (eError != OMAPLFB_OK)
{
- printk(KERN_WARNING DRIVER_PREFIX ": Couldn't uninstall VSync ISR\n");
- return (PVRSRV_ERROR_UNABLE_TO_UNINSTALL_ISR);
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't disable framebuffer event notification\n", __FUNCTION__, psDevInfo->uiFBDevID);
}
-#if defined (SUPPORT_TI_DSS_FW)
- iounmap(psSwapChain->pvRegs);
-
- OMAPLFBDisableDisplayRegisterAccess();
-#endif
- OMAPLFBFreeKernelMem(psSwapChain->psVSyncFlips);
OMAPLFBFreeKernelMem(psSwapChain->psBuffer);
OMAPLFBFreeKernelMem(psSwapChain);
- return (PVRSRV_OK);
+ psDevInfo->psSwapChain = NULL;
+
+ OMAPLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
+ (void) OMAPLFBCheckModeAndSync(psDevInfo);
+
+ eError = PVRSRV_OK;
+
+ExitUnLock:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ return eError;
}
static PVRSRV_ERROR SetDCDstRect(IMG_HANDLE hDevice,
- return (PVRSRV_ERROR_NOT_SUPPORTED);
+ return PVRSRV_ERROR_NOT_SUPPORTED;
}
static PVRSRV_ERROR SetDCSrcRect(IMG_HANDLE hDevice,
- return (PVRSRV_ERROR_NOT_SUPPORTED);
+ return PVRSRV_ERROR_NOT_SUPPORTED;
}
static PVRSRV_ERROR SetDCDstColourKey(IMG_HANDLE hDevice,
- return (PVRSRV_ERROR_NOT_SUPPORTED);
+ return PVRSRV_ERROR_NOT_SUPPORTED;
}
static PVRSRV_ERROR SetDCSrcColourKey(IMG_HANDLE hDevice,
- return (PVRSRV_ERROR_NOT_SUPPORTED);
+ return PVRSRV_ERROR_NOT_SUPPORTED;
}
static PVRSRV_ERROR GetDCBuffers(IMG_HANDLE hDevice,
{
OMAPLFB_DEVINFO *psDevInfo;
OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long i;
+ PVRSRV_ERROR eError;
+ unsigned i;
if(!hDevice
|| !pui32BufferCount
|| !phBuffer)
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
{
- return (PVRSRV_ERROR_INVALID_PARAMS);
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: Swap chain mismatch\n", __FUNCTION__, psDevInfo->uiFBDevID);
+
+ eError = PVRSRV_ERROR_INVALID_PARAMS;
+ goto Exit;
}
phBuffer[i] = (IMG_HANDLE)&psSwapChain->psBuffer[i];
}
- return (PVRSRV_OK);
+ eError = PVRSRV_OK;
+
+Exit:
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ return eError;
}
static PVRSRV_ERROR SwapToDCBuffer(IMG_HANDLE hDevice,
IMG_UINT32 ui32ClipRectCount,
IMG_RECT *psClipRect)
{
- OMAPLFB_DEVINFO *psDevInfo;
-
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hBuffer);
UNREFERENCED_PARAMETER(ui32SwapInterval);
UNREFERENCED_PARAMETER(hPrivateTag);
+ UNREFERENCED_PARAMETER(ui32ClipRectCount);
UNREFERENCED_PARAMETER(psClipRect);
- if(!hDevice
- || !hBuffer
- || (ui32ClipRectCount != 0))
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
-
- return (PVRSRV_OK);
+
+ return PVRSRV_OK;
}
static PVRSRV_ERROR SwapToDCSystem(IMG_HANDLE hDevice,
IMG_HANDLE hSwapChain)
{
- OMAPLFB_DEVINFO *psDevInfo;
- OMAPLFB_SWAPCHAIN *psSwapChain;
- unsigned long ulLockFlags;
-
- if(!hDevice || !hSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
-
- psDevInfo = (OMAPLFB_DEVINFO*)hDevice;
- psSwapChain = (OMAPLFB_SWAPCHAIN*)hSwapChain;
- if (psSwapChain != psDevInfo->psSwapChain)
- {
- return (PVRSRV_ERROR_INVALID_PARAMS);
- }
+ UNREFERENCED_PARAMETER(hDevice);
+ UNREFERENCED_PARAMETER(hSwapChain);
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- FlushInternalVSyncQueue(psSwapChain);
-
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psDevInfo->sFBInfo.sSysAddr.uiAddr);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
- return (PVRSRV_OK);
+ return PVRSRV_OK;
}
-OMAP_BOOL OMAPLFBVSyncIHandler(OMAPLFB_SWAPCHAIN *psSwapChain)
+static OMAPLFB_BOOL WaitForVSyncSettle(OMAPLFB_DEVINFO *psDevInfo)
{
- OMAP_BOOL bStatus = OMAP_FALSE;
- OMAPLFB_VSYNC_FLIP_ITEM *psFlipItem;
- unsigned long ulMaxIndex;
- unsigned long ulLockFlags;
+ unsigned i;
+ for(i = 0; i < OMAPLFB_VSYNC_SETTLE_COUNT; i++)
+ {
+ if (DontWaitForVSync(psDevInfo) || !OMAPLFBWaitForVSync(psDevInfo))
+ {
+ return OMAPLFB_FALSE;
+ }
+ }
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
- ulMaxIndex = psSwapChain->ulBufferCount - 1;
+ return OMAPLFB_TRUE;
+}
- spin_lock_irqsave(psSwapChain->psSwapChainLock, ulLockFlags);
+void OMAPLFBSwapHandler(OMAPLFB_BUFFER *psBuffer)
+{
+ OMAPLFB_DEVINFO *psDevInfo = psBuffer->psDevInfo;
+ OMAPLFB_SWAPCHAIN *psSwapChain = psDevInfo->psSwapChain;
+ OMAPLFB_BOOL bPreviouslyNotVSynced;
-
- if (psSwapChain->bFlushCommands)
+#if defined(SUPPORT_DRI_DRM)
+ if (!OMAPLFBAtomicBoolRead(&psDevInfo->sLeaveVT))
+#endif
{
- goto ExitUnlock;
+ OMAPLFBFlip(psDevInfo, psBuffer);
}
- while(psFlipItem->bValid)
- {
-
- if(psFlipItem->bFlipped)
- {
-
- if(!psFlipItem->bCmdCompleted)
- {
-
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete((IMG_HANDLE)psFlipItem->hCmdComplete, IMG_TRUE);
+ bPreviouslyNotVSynced = psSwapChain->bNotVSynced;
+ psSwapChain->bNotVSynced = OMAPLFB_TRUE;
-
- psFlipItem->bCmdCompleted = OMAP_TRUE;
- }
-
- psFlipItem->ulSwapInterval--;
+ if (!DontWaitForVSync(psDevInfo))
+ {
+ OMAPLFB_UPDATE_MODE eMode = OMAPLFBGetUpdateMode(psDevInfo);
+ int iBlankEvents = OMAPLFBAtomicIntRead(&psDevInfo->sBlankEvents);
-
- if(psFlipItem->ulSwapInterval == 0)
- {
-
- psSwapChain->ulRemoveIndex++;
-
- if(psSwapChain->ulRemoveIndex > ulMaxIndex)
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ psSwapChain->bNotVSynced = OMAPLFB_FALSE;
+
+ if (bPreviouslyNotVSynced || psSwapChain->iBlankEvents != iBlankEvents)
+ {
+ psSwapChain->iBlankEvents = iBlankEvents;
+ psSwapChain->bNotVSynced = !WaitForVSyncSettle(psDevInfo);
+ } else if (psBuffer->ulSwapInterval != 0)
{
- psSwapChain->ulRemoveIndex = 0;
+ psSwapChain->bNotVSynced = !OMAPLFBWaitForVSync(psDevInfo);
}
-
-
- psFlipItem->bCmdCompleted = OMAP_FALSE;
- psFlipItem->bFlipped = OMAP_FALSE;
-
-
- psFlipItem->bValid = OMAP_FALSE;
- }
- else
- {
-
break;
- }
- }
- else
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psFlipItem->sSysAddr);
-
-
- psFlipItem->bFlipped = OMAP_TRUE;
-
-
- break;
+#if defined(PVR_OMAPFB3_MANUAL_UPDATE_SYNC_IN_SWAP)
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ if (psBuffer->ulSwapInterval != 0)
+ {
+ (void) OMAPLFBManualSync(psDevInfo);
+ }
+ break;
+#endif
+ default:
+ break;
}
-
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulRemoveIndex];
}
-
-ExitUnlock:
- spin_unlock_irqrestore(psSwapChain->psSwapChainLock, ulLockFlags);
- return bStatus;
+ psDevInfo->sPVRJTable.pfnPVRSRVCmdComplete((IMG_HANDLE)psBuffer->hCmdComplete, IMG_TRUE);
}
static IMG_BOOL ProcessFlip(IMG_HANDLE hCmdCookie,
OMAPLFB_DEVINFO *psDevInfo;
OMAPLFB_BUFFER *psBuffer;
OMAPLFB_SWAPCHAIN *psSwapChain;
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFB_VSYNC_FLIP_ITEM* psFlipItem;
-#endif
- unsigned long ulLockFlags;
if(!hCmdCookie || !pvData)
psDevInfo = (OMAPLFB_DEVINFO*)psFlipCmd->hExtDevice;
-
psBuffer = (OMAPLFB_BUFFER*)psFlipCmd->hExtBuffer;
psSwapChain = (OMAPLFB_SWAPCHAIN*) psFlipCmd->hExtSwapChain;
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+ OMAPLFBCreateSwapChainLock(psDevInfo);
-
- if (psDevInfo->bDeviceSuspended)
- {
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete(hCmdCookie, IMG_TRUE);
- goto ExitTrueUnlock;
- }
-
-#if defined(SYS_USING_INTERRUPTS)
-
- if(psFlipCmd->ui32SwapInterval == 0 || psSwapChain->bFlushCommands == OMAP_TRUE)
+ if (SwapChainHasChanged(psDevInfo, psSwapChain))
{
-#endif
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psBuffer->sSysAddr.uiAddr);
-
- psSwapChain->psPVRJTable->pfnPVRSRVCmdComplete(hCmdCookie, IMG_TRUE);
-
-#if defined(SYS_USING_INTERRUPTS)
- goto ExitTrueUnlock;
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u (PVR Device ID %u): The swap chain has been destroyed\n",
+ __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID));
}
-
- psFlipItem = &psSwapChain->psVSyncFlips[psSwapChain->ulInsertIndex];
-
-
- if(psFlipItem->bValid == OMAP_FALSE)
+ else
{
- unsigned long ulMaxIndex = psSwapChain->ulBufferCount - 1;
-
- if(psSwapChain->ulInsertIndex == psSwapChain->ulRemoveIndex)
- {
-
- OMAPLFBFlip(psSwapChain, (unsigned long)psBuffer->sSysAddr.uiAddr);
-
- psFlipItem->bFlipped = OMAP_TRUE;
- }
- else
- {
- psFlipItem->bFlipped = OMAP_FALSE;
- }
+ psBuffer->hCmdComplete = (OMAPLFB_HANDLE)hCmdCookie;
+ psBuffer->ulSwapInterval = (unsigned long)psFlipCmd->ui32SwapInterval;
- psFlipItem->hCmdComplete = (OMAP_HANDLE)hCmdCookie;
- psFlipItem->ulSwapInterval = (unsigned long)psFlipCmd->ui32SwapInterval;
- psFlipItem->sSysAddr = &psBuffer->sSysAddr;
- psFlipItem->bValid = OMAP_TRUE;
-
- psSwapChain->ulInsertIndex++;
- if(psSwapChain->ulInsertIndex > ulMaxIndex)
- {
- psSwapChain->ulInsertIndex = 0;
- }
-
- goto ExitTrueUnlock;
+ OMAPLFBQueueBufferForSwap(psSwapChain, psBuffer);
}
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
- return IMG_FALSE;
-#endif
-ExitTrueUnlock:
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
return IMG_TRUE;
}
-static OMAP_ERROR InitDev(OMAPLFB_DEVINFO *psDevInfo)
+static OMAPLFB_ERROR OMAPLFBInitFBDev(OMAPLFB_DEVINFO *psDevInfo)
{
struct fb_info *psLINFBInfo;
struct module *psLINFBOwner;
OMAPLFB_FBINFO *psPVRFBInfo = &psDevInfo->sFBInfo;
- OMAP_ERROR eError = OMAP_ERROR_GENERIC;
+ OMAPLFB_ERROR eError = OMAPLFB_ERROR_GENERIC;
unsigned long FBSize;
+ unsigned long ulLCM;
+ unsigned uiFBDevID = psDevInfo->uiFBDevID;
acquire_console_sem();
- if (fb_idx < 0 || fb_idx >= num_registered_fb)
+ psLINFBInfo = registered_fb[uiFBDevID];
+ if (psLINFBInfo == NULL)
{
- eError = OMAP_ERROR_INVALID_DEVICE;
- goto errRelSem;
+ eError = OMAPLFB_ERROR_INVALID_DEVICE;
+ goto ErrorRelSem;
}
- psLINFBInfo = registered_fb[fb_idx];
+ FBSize = (psLINFBInfo->screen_size) != 0 ?
+ psLINFBInfo->screen_size :
+ psLINFBInfo->fix.smem_len;
+
+
+ if (FBSize == 0 || psLINFBInfo->fix.line_length == 0)
+ {
+ eError = OMAPLFB_ERROR_INVALID_DEVICE;
+ goto ErrorRelSem;
+ }
psLINFBOwner = psLINFBInfo->fbops->owner;
if (!try_module_get(psLINFBOwner))
{
printk(KERN_INFO DRIVER_PREFIX
- ": Couldn't get framebuffer module\n");
+ ": %s: Device %u: Couldn't get framebuffer module\n", __FUNCTION__, uiFBDevID);
- goto errRelSem;
+ goto ErrorRelSem;
}
if (psLINFBInfo->fbops->fb_open != NULL)
if (res != 0)
{
printk(KERN_INFO DRIVER_PREFIX
- ": Couldn't open framebuffer: %d\n", res);
+ " %s: Device %u: Couldn't open framebuffer(%d)\n", __FUNCTION__, uiFBDevID, res);
- goto errModPut;
+ goto ErrorModPut;
}
}
psDevInfo->psLINFBInfo = psLINFBInfo;
- FBSize = (psLINFBInfo->screen_size) != 0 ?
- psLINFBInfo->screen_size :
- psLINFBInfo->fix.smem_len;
+ ulLCM = LCM(psLINFBInfo->fix.line_length, OMAPLFB_PAGE_SIZE);
+
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer physical address: 0x%lx\n",
- psLINFBInfo->fix.smem_start));
+ ": Device %u: Framebuffer physical address: 0x%lx\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->fix.smem_start));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual address: 0x%lx\n",
- (unsigned long)psLINFBInfo->screen_base));
+ ": Device %u: Framebuffer virtual address: 0x%lx\n",
+ psDevInfo->uiFBDevID, (unsigned long)psLINFBInfo->screen_base));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer size: %lu\n",
- FBSize));
+ ": Device %u: Framebuffer size: %lu\n",
+ psDevInfo->uiFBDevID, FBSize));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual width: %u\n",
- psLINFBInfo->var.xres_virtual));
+ ": Device %u: Framebuffer virtual width: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.xres_virtual));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer virtual height: %u\n",
- psLINFBInfo->var.yres_virtual));
+ ": Device %u: Framebuffer virtual height: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.yres_virtual));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer width: %u\n",
- psLINFBInfo->var.xres));
+ ": Device %u: Framebuffer width: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.xres));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer height: %u\n",
- psLINFBInfo->var.yres));
+ ": Device %u: Framebuffer height: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->var.yres));
DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Framebuffer stride: %u\n",
- psLINFBInfo->fix.line_length));
+ ": Device %u: Framebuffer stride: %u\n",
+ psDevInfo->uiFBDevID, psLINFBInfo->fix.line_length));
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: LCM of stride and page size: %lu\n",
+ psDevInfo->uiFBDevID, ulLCM));
psPVRFBInfo->sSysAddr.uiAddr = psLINFBInfo->fix.smem_start;
psPVRFBInfo->ulByteStride = psLINFBInfo->fix.line_length;
psPVRFBInfo->ulFBSize = FBSize;
psPVRFBInfo->ulBufferSize = psPVRFBInfo->ulHeight * psPVRFBInfo->ulByteStride;
-
-#ifdef CONFIG_OMAP2_DSS
- psPVRFBInfo->ulRoundedBufferSize = psPVRFBInfo->ulBufferSize;
-#else
- psPVRFBInfo->ulRoundedBufferSize = OMAPLFB_PAGE_ROUNDUP(psPVRFBInfo->ulBufferSize);
-#endif
+ psPVRFBInfo->ulRoundedBufferSize = RoundUpToMultiple(psPVRFBInfo->ulBufferSize, ulLCM);
+
if(psLINFBInfo->var.bits_per_pixel == 16)
{
if((psLINFBInfo->var.red.length == 5) &&
}
else
{
- printk("Unknown FB format\n");
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
}
}
else if(psLINFBInfo->var.bits_per_pixel == 32)
}
else
{
- printk("Unknown FB format\n");
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
}
}
else
{
- printk("Unknown FB format\n");
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown FB format\n", __FUNCTION__, uiFBDevID);
}
psDevInfo->sFBInfo.ulPhysicalWidthmm =
psDevInfo->sFBInfo.sSysAddr.uiAddr = psPVRFBInfo->sSysAddr.uiAddr;
psDevInfo->sFBInfo.sCPUVAddr = psPVRFBInfo->sCPUVAddr;
-#ifdef CONFIG_OMAP2_DSS
- INIT_WORK (&wq_flipdss2.work, dss2_pan_display);
-#endif
- eError = OMAP_OK;
- goto errRelSem;
-errModPut:
+ eError = OMAPLFB_OK;
+ goto ErrorRelSem;
+
+ErrorModPut:
module_put(psLINFBOwner);
-errRelSem:
+ErrorRelSem:
release_console_sem();
+
return eError;
}
-static void DeInitDev(OMAPLFB_DEVINFO *psDevInfo)
+static void OMAPLFBDeInitFBDev(OMAPLFB_DEVINFO *psDevInfo)
{
struct fb_info *psLINFBInfo = psDevInfo->psLINFBInfo;
struct module *psLINFBOwner;
release_console_sem();
}
-OMAP_ERROR OMAPLFBInit(void)
+static OMAPLFB_DEVINFO *OMAPLFBInitDev(unsigned uiFBDevID)
{
- OMAPLFB_DEVINFO *psDevInfo;
+ PFN_CMD_PROC pfnCmdProcList[OMAPLFB_COMMAND_COUNT];
+ IMG_UINT32 aui32SyncCountList[OMAPLFB_COMMAND_COUNT][2];
+ OMAPLFB_DEVINFO *psDevInfo = NULL;
- psDevInfo = GetAnchorPtr();
- if (psDevInfo == NULL)
- {
- PFN_CMD_PROC pfnCmdProcList[OMAPLFB_COMMAND_COUNT];
- IMG_UINT32 aui32SyncCountList[OMAPLFB_COMMAND_COUNT][2];
-
- psDevInfo = (OMAPLFB_DEVINFO *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_DEVINFO));
-
- if(!psDevInfo)
- {
- return (OMAP_ERROR_OUT_OF_MEMORY);
- }
+ psDevInfo = (OMAPLFB_DEVINFO *)OMAPLFBAllocKernelMem(sizeof(OMAPLFB_DEVINFO));
-
- memset(psDevInfo, 0, sizeof(OMAPLFB_DEVINFO));
+ if(psDevInfo == NULL)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: Couldn't allocate device information structure\n", __FUNCTION__, uiFBDevID);
-
- SetAnchorPtr((void*)psDevInfo);
+ goto ErrorExit;
+ }
-
- psDevInfo->ulRefCount = 0;
+
+ memset(psDevInfo, 0, sizeof(OMAPLFB_DEVINFO));
-#ifdef FBDEV_PRESENT
- if(InitDev(psDevInfo) != OMAP_OK)
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
-#endif
- if(OMAPLFBGetLibFuncAddr ("PVRGetDisplayClassJTable", &pfnGetPVRJTable) != OMAP_OK)
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
+ psDevInfo->uiFBDevID = uiFBDevID;
+
+ if(!(*gpfnGetPVRJTable)(&psDevInfo->sPVRJTable))
+ {
+ goto ErrorFreeDevInfo;
+ }
+#ifdef FBDEV_PRESENT
+
+ if(OMAPLFBInitFBDev(psDevInfo) != OMAPLFB_OK)
+ {
- if(!(*pfnGetPVRJTable)(&psDevInfo->sPVRJTable))
- {
- return (OMAP_ERROR_INIT_FAILURE);
- }
+ goto ErrorFreeDevInfo;
+ }
-
- spin_lock_init(&psDevInfo->sSwapChainLock);
+ psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = (IMG_UINT32)(psDevInfo->sFBInfo.ulFBSize / psDevInfo->sFBInfo.ulRoundedBufferSize);
+ if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers != 0)
+ {
+ psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1;
+ psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 1;
+ }
- psDevInfo->psSwapChain = 0;
- psDevInfo->bFlushCommands = OMAP_FALSE;
- psDevInfo->bDeviceSuspended = OMAP_FALSE;
+ psDevInfo->sDisplayInfo.ui32PhysicalWidthmm = psDevInfo->sFBInfo.ulPhysicalWidthmm;
+ psDevInfo->sDisplayInfo.ui32PhysicalHeightmm = psDevInfo->sFBInfo.ulPhysicalHeightmm;
-#ifdef FBDEV_PRESENT
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = (IMG_UINT32)(psDevInfo->sFBInfo.ulFBSize / psDevInfo->sFBInfo.ulRoundedBufferSize);
-#if !defined (SUPPORT_TI_DSS_FW)
- /* DSS2 have trouble with ui32MaxSwapChainBuffers > 3 */
- if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers > 3)
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = 3;
-#endif
-#if 1
- /* for fb_pan_display to work, yres_virtual should be set to number of buffers multiplied yres */
- psDevInfo->psLINFBInfo->var.yres_virtual = psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers * psDevInfo->psLINFBInfo->var.yres;
- if (fb_set_var(psDevInfo->psLINFBInfo, &psDevInfo->psLINFBInfo->var) != 0)
- {
- printk(KERN_INFO DRIVER_PREFIX ": Couldn't set framebuffer paramter: ");
-
- }
-#endif
+ strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
+ psDevInfo->sDisplayFormat.pixelformat = psDevInfo->sFBInfo.ePixelFormat;
+ psDevInfo->sDisplayDim.ui32Width = (IMG_UINT32)psDevInfo->sFBInfo.ulWidth;
+ psDevInfo->sDisplayDim.ui32Height = (IMG_UINT32)psDevInfo->sFBInfo.ulHeight;
+ psDevInfo->sDisplayDim.ui32ByteStride = (IMG_UINT32)psDevInfo->sFBInfo.ulByteStride;
- if (psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers == 0)
- {
- psDevInfo->sDisplayInfo.ui32MaxSwapChains = 0;
- psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 0;
- }
- else
- {
- psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1;
- psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 3;
- }
- psDevInfo->sDisplayInfo.ui32MinSwapInterval = 0;
-
- psDevInfo->sDisplayInfo.ui32PhysicalWidthmm = psDevInfo->sFBInfo.ulPhysicalWidthmm;
- psDevInfo->sDisplayInfo.ui32PhysicalHeightmm = psDevInfo->sFBInfo.ulPhysicalHeightmm;
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: Maximum number of swap chain buffers: %u\n",
+ psDevInfo->uiFBDevID, psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers));
- strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
- psDevInfo->sDisplayFormat.pixelformat = psDevInfo->sFBInfo.ePixelFormat;
- psDevInfo->sDisplayDim.ui32Width = (IMG_UINT32)psDevInfo->sFBInfo.ulWidth;
- psDevInfo->sDisplayDim.ui32Height = (IMG_UINT32)psDevInfo->sFBInfo.ulHeight;
- psDevInfo->sDisplayDim.ui32ByteStride = (IMG_UINT32)psDevInfo->sFBInfo.ulByteStride;
-
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
- ": Maximum number of swap chain buffers: %u\n",
- psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers));
-
-
- psDevInfo->sSystemBuffer.sSysAddr = psDevInfo->sFBInfo.sSysAddr;
- psDevInfo->sSystemBuffer.sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr;
- psDevInfo->sSystemBuffer.ulBufferSize = psDevInfo->sFBInfo.ulRoundedBufferSize;
+ psDevInfo->sSystemBuffer.sSysAddr = psDevInfo->sFBInfo.sSysAddr;
+ psDevInfo->sSystemBuffer.sCPUVAddr = psDevInfo->sFBInfo.sCPUVAddr;
+ psDevInfo->sSystemBuffer.psDevInfo = psDevInfo;
+ OMAPLFBInitBufferForSwap(&psDevInfo->sSystemBuffer);
#else
psDevInfo->sSystemBuffer.sCPUVAddr = 0x100;
- psDevInfo->sSystemBuffer.ulBufferSize = 600*3200;
+// psDevInfo->sSystemBuffer.ulBufferSize = 600*3200;
psDevInfo->sDisplayFormat.pixelformat = 20;
psDevInfo->sFBInfo.ulWidth = 800;
psDevInfo->sFBInfo.ulByteStride = 3200;
psDevInfo->sFBInfo.ulFBSize = 8388608;
psDevInfo->sFBInfo.ulBufferSize = 600*3200;
-
#endif
- psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
- psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
- psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
- psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
- psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
- psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
- psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
- psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
- psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
- psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
- psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
- psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
- psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
- psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
- psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
- psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
- psDevInfo->sDCJTable.pfnSwapToDCSystem = SwapToDCSystem;
- psDevInfo->sDCJTable.pfnSetDCState = SetDCState;
-
- if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice (
- &psDevInfo->sDCJTable,
- &psDevInfo->uiDeviceID ) != PVRSRV_OK)
- {
- return (OMAP_ERROR_DEVICE_REGISTER_FAILED);
- }
-
-
- pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
+ psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
+ psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
+ psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
+ psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
+ psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
+ psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
+ psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
+ psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
+ psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
+ psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
+ psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
+ psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
+ psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
+ psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
+ psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
+ psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
+ psDevInfo->sDCJTable.pfnSwapToDCSystem = SwapToDCSystem;
+ psDevInfo->sDCJTable.pfnSetDCState = SetDCState;
-
- aui32SyncCountList[DC_FLIP_COMMAND][0] = 0;
- aui32SyncCountList[DC_FLIP_COMMAND][1] = 2;
+
+ if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice(
+ &psDevInfo->sDCJTable,
+ &psDevInfo->uiPVRDevID) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Services device registration failed\n", __FUNCTION__, uiFBDevID);
-
+ goto ErrorDeInitFBDev;
+ }
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX
+ ": Device %u: PVR Device ID: %u\n",
+ psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID));
+
+
+ pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
+
+ aui32SyncCountList[DC_FLIP_COMMAND][0] = 0;
+ aui32SyncCountList[DC_FLIP_COMMAND][1] = 2;
+
+
- if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList (psDevInfo->uiDeviceID,
- &pfnCmdProcList[0],
- aui32SyncCountList,
- OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
- {
- printk(KERN_WARNING DRIVER_PREFIX ": Can't register callback\n");
- return (OMAP_ERROR_CANT_REGISTER_CALLBACK);
- }
+ if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList(psDevInfo->uiPVRDevID,
+ &pfnCmdProcList[0],
+ aui32SyncCountList,
+ OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
+ {
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: Couldn't register command processing functions with PVR Services\n", __FUNCTION__, uiFBDevID);
+ goto ErrorUnregisterDevice;
}
-
- psDevInfo->ulRefCount++;
+ OMAPLFBCreateSwapChainLockInit(psDevInfo);
-
- return (OMAP_OK);
-
- }
+ OMAPLFBAtomicBoolInit(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+ OMAPLFBAtomicIntInit(&psDevInfo->sBlankEvents, 0);
+ OMAPLFBAtomicBoolInit(&psDevInfo->sFlushCommands, OMAPLFB_FALSE);
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ OMAPLFBAtomicBoolInit(&psDevInfo->sEarlySuspendFlag, OMAPLFB_FALSE);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFBAtomicBoolInit(&psDevInfo->sLeaveVT, OMAPLFB_FALSE);
+#endif
+ return psDevInfo;
+
+ErrorUnregisterDevice:
+ (void)psDevInfo->sPVRJTable.pfnPVRSRVRemoveDCDevice(psDevInfo->uiPVRDevID);
+ErrorDeInitFBDev:
+ OMAPLFBDeInitFBDev(psDevInfo);
+ErrorFreeDevInfo:
+ OMAPLFBFreeKernelMem(psDevInfo);
+ErrorExit:
+ return NULL;
+}
-OMAP_ERROR OMAPLFBDeinit(void)
+OMAPLFB_ERROR OMAPLFBInit(void)
{
- OMAPLFB_DEVINFO *psDevInfo, *psDevFirst;
-
- psDevFirst = GetAnchorPtr();
- psDevInfo = psDevFirst;
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+ unsigned uiDevicesFound = 0;
-
- if (psDevInfo == NULL)
+ if(OMAPLFBGetLibFuncAddr ("PVRGetDisplayClassJTable", &gpfnGetPVRJTable) != OMAPLFB_OK)
{
- return (OMAP_ERROR_GENERIC);
+ return OMAPLFB_ERROR_INIT_FAILURE;
}
- psDevInfo->ulRefCount--;
-
- if (psDevInfo->ulRefCount == 0)
+ for(i = uiMaxFBDevIDPlusOne; i-- != 0;)
{
-
- PVRSRV_DC_DISP2SRV_KMJTABLE *psJTable = &psDevInfo->sPVRJTable;
-
- if (psDevInfo->sPVRJTable.pfnPVRSRVRemoveCmdProcList (psDevInfo->uiDeviceID, OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
- {
- return (OMAP_ERROR_GENERIC);
- }
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBInitDev(i);
-
- if (psJTable->pfnPVRSRVRemoveDCDevice(psDevInfo->uiDeviceID) != PVRSRV_OK)
+ if (psDevInfo != NULL)
{
- return (OMAP_ERROR_GENERIC);
+
+ OMAPLFBSetDevInfoPtr(psDevInfo->uiFBDevID, psDevInfo);
+ uiDevicesFound++;
}
-#ifdef FBDEV_PRESENT
- DeInitDev(psDevInfo);
-#endif
-
- OMAPLFBFreeKernelMem(psDevInfo);
}
-
-
- SetAnchorPtr(NULL);
-
- return (OMAP_OK);
+ return (uiDevicesFound != 0) ? OMAPLFB_OK : OMAPLFB_ERROR_INIT_FAILURE;
}
-
-#if defined(LDM_PLATFORM)
-void OMAPLFBDriverSuspend(void)
+static OMAPLFB_BOOL OMAPLFBDeInitDev(OMAPLFB_DEVINFO *psDevInfo)
{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr();
- unsigned long ulLockFlags;
+ PVRSRV_DC_DISP2SRV_KMJTABLE *psPVRJTable = &psDevInfo->sPVRJTable;
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+ OMAPLFBCreateSwapChainLockDeInit(psDevInfo);
- if (psDevInfo->bDeviceSuspended)
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sBlanked);
+ OMAPLFBAtomicIntDeInit(&psDevInfo->sBlankEvents);
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sFlushCommands);
+#if defined(CONFIG_HAS_EARLYSUSPEND)
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sEarlySuspendFlag);
+#endif
+#if defined(SUPPORT_DRI_DRM)
+ OMAPLFBAtomicBoolDeInit(&psDevInfo->sLeaveVT);
+#endif
+ psPVRJTable = &psDevInfo->sPVRJTable;
+
+ if (psPVRJTable->pfnPVRSRVRemoveCmdProcList (psDevInfo->uiPVRDevID, OMAPLFB_COMMAND_COUNT) != PVRSRV_OK)
{
- goto ExitUnlock;
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Device %u: Couldn't unregister command processing functions\n", __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID);
+ return OMAPLFB_FALSE;
}
- psDevInfo->bDeviceSuspended = OMAP_TRUE;
- SetFlushStateInternalNoLock(psDevInfo, OMAP_TRUE);
-
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
-
-#if defined (SUPPORT_TI_DSS_FW)
- if (psDevInfo->psSwapChain != NULL)
+ if (psPVRJTable->pfnPVRSRVRemoveDCDevice(psDevInfo->uiPVRDevID) != PVRSRV_OK)
{
- OMAPLFBDisableDisplayRegisterAccess();
+ printk(KERN_ERR DRIVER_PREFIX
+ ": %s: Device %u: PVR Device %u: Couldn't remove device from PVR Services\n", __FUNCTION__, psDevInfo->uiFBDevID, psDevInfo->uiPVRDevID);
+ return OMAPLFB_FALSE;
}
+#ifdef FBDEV_PRESENT
+ OMAPLFBDeInitFBDev(psDevInfo);
#endif
- return;
+ OMAPLFBSetDevInfoPtr(psDevInfo->uiFBDevID, NULL);
+
+
+ OMAPLFBFreeKernelMem(psDevInfo);
-ExitUnlock:
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
+ return OMAPLFB_TRUE;
}
-void OMAPLFBDriverResume(void)
+OMAPLFB_ERROR OMAPLFBDeInit(void)
{
- OMAPLFB_DEVINFO *psDevInfo = GetAnchorPtr();
- unsigned long ulLockFlags;
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+ OMAPLFB_BOOL bError = OMAPLFB_FALSE;
- if (psDevInfo->bDeviceSuspended == OMAP_FALSE)
+ for(i = 0; i < uiMaxFBDevIDPlusOne; i++)
{
- return;
- }
-#if defined (SUPPORT_TI_DSS_FW)
- if (psDevInfo->psSwapChain != NULL)
- {
- OMAPLFBEnableDisplayRegisterAccess();
- }
-#endif
- spin_lock_irqsave(&psDevInfo->sSwapChainLock, ulLockFlags);
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
-
- SetFlushStateInternalNoLock(psDevInfo, OMAP_FALSE);
-
- psDevInfo->bDeviceSuspended = OMAP_FALSE;
+ if (psDevInfo != NULL)
+ {
+ bError |= !OMAPLFBDeInitDev(psDevInfo);
+ }
+ }
- spin_unlock_irqrestore(&psDevInfo->sSwapChainLock, ulLockFlags);
+ return (bError) ? OMAPLFB_ERROR_INIT_FAILURE : OMAPLFB_OK;
}
-#endif
#endif
#include <linux/version.h>
-#include <linux/module.h>
-
-#include <linux/pci.h>
-#include <asm/uaccess.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <plat/ti81xx-vpss.h>
+#include <asm/atomic.h>
-#if defined(LDM_PLATFORM)
-#include <linux/platform_device.h>
-#endif
+#if defined(SUPPORT_DRI_DRM)
+#include <drm/drmP.h>
+#else
+#include <linux/module.h>
+#endif
-#if defined (SUPPORT_TI_DSS_FW)
-#include <asm/io.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/hardirq.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+//#include <linux/omapfb.h>
+#include <linux/ti81xxfb.h>
+#include <linux/mutex.h>
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,31))
-#include <plat/display.h>
-#else
-#include <mach/display.h>
-#endif
-#else
-#include <asm/arch-omap/display.h>
-#endif
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+#define PVR_OMAPFB3_NEEDS_PLAT_VRFB_H
+#endif
+#if defined(PVR_OMAPFB3_NEEDS_PLAT_VRFB_H)
+# include <plat/vrfb.h>
#else
-#if !defined (CONFIG_OMAP2_DSS)
-#define DISPC_IRQ_VSYNC 0x0002
-extern int omap_dispc_request_irq(unsigned long, void (*)(void *), void *);
-extern void omap_dispc_free_irq(unsigned long, void (*)(void *), void *);
-extern void omap_dispc_set_plane_base(int plane, IMG_UINT32 phys_addr);
-#else
-#include <plat/display.h>
-#include <linux/console.h>
-#include <linux/fb.h>
-static omap_dispc_isr_t *pOMAPLFBVSyncISRHandle = NULL;
+# if defined(PVR_OMAPFB3_NEEDS_MACH_VRFB_H)
+# include <mach/vrfb.h>
+# endif
#endif
-#endif
-
+#if defined(DEBUG)
+#define PVR_DEBUG DEBUG
+#undef DEBUG
+#endif
+//#include <omapfb/omapfb.h>
+#include <../drivers/video/ti81xx/ti81xxfb/fbpriv.h>
+#if defined(DEBUG)
+#undef DEBUG
+#endif
+#if defined(PVR_DEBUG)
+#define DEBUG PVR_DEBUG
+#undef PVR_DEBUG
+#endif
#include "img_defs.h"
#include "servicesext.h"
#include "kerneldisplay.h"
#include "omaplfb.h"
#include "pvrmodule.h"
+#if defined(SUPPORT_DRI_DRM)
+#include "pvr_drm.h"
+#include "3rdparty_dc_drm_shared.h"
+#endif
+
+#if 0
+#if !defined(PVR_LINUX_USING_WORKQUEUES)
+#error "PVR_LINUX_USING_WORKQUEUES must be defined"
+#endif
+#endif
MODULE_SUPPORTED_DEVICE(DEVNAME);
-#define unref__ __attribute__ ((unused))
+#if 0
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+#define OMAP_DSS_DRIVER(drv, dev) struct omap_dss_driver *drv = (dev) != NULL ? (dev)->driver : NULL
+#define OMAP_DSS_MANAGER(man, dev) struct omap_overlay_manager *man = (dev) != NULL ? (dev)->manager : NULL
+#define WAIT_FOR_VSYNC(man) ((man)->wait_for_vsync)
+#else
+#define OMAP_DSS_DRIVER(drv, dev) struct ti81xxfb_device *drv = (dev)
+#define OMAP_DSS_MANAGER(man, dev) struct ti81xxfb_device *man = (dev)
+#define WAIT_FOR_VSYNC(man) ((man)->wait_vsync)
+#endif
+#endif
+
+
+#define OMAP_DSS_DRIVER(drv, dev) struct ti81xxfb_device *drv = (dev)
+#define OMAP_DSS_MANAGER(man, dev) struct ti81xxfb_device *man = (dev)
+#define WAIT_FOR_VSYNC(man) ((man)->wait_vsync)
+
+
+
void *OMAPLFBAllocKernelMem(unsigned long ulSize)
{
kfree(pvMem);
}
-
-OMAP_ERROR OMAPLFBGetLibFuncAddr (char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable)
+void OMAPLFBCreateSwapChainLockInit(OMAPLFB_DEVINFO *psDevInfo)
{
- if(strcmp("PVRGetDisplayClassJTable", szFunctionName) != 0)
- {
- return (OMAP_ERROR_INVALID_PARAMS);
- }
+ mutex_init(&psDevInfo->sCreateSwapChainMutex);
+}
-
- *ppfnFuncTable = PVRGetDisplayClassJTable;
+void OMAPLFBCreateSwapChainLockDeInit(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_destroy(&psDevInfo->sCreateSwapChainMutex);
+}
- return (OMAP_OK);
+void OMAPLFBCreateSwapChainLock(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_lock(&psDevInfo->sCreateSwapChainMutex);
}
+void OMAPLFBCreateSwapChainUnLock(OMAPLFB_DEVINFO *psDevInfo)
+{
+ mutex_unlock(&psDevInfo->sCreateSwapChainMutex);
+}
-#if defined(SYS_USING_INTERRUPTS)
+void OMAPLFBAtomicBoolInit(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal)
+{
+ atomic_set(psAtomic, (int)bVal);
+}
-#if defined(SUPPORT_OMAP3430_OMAPFB3)
+void OMAPLFBAtomicBoolDeInit(OMAPLFB_ATOMIC_BOOL *psAtomic)
+{
+}
-static void OMAPLFBVSyncISR(void *arg, u32 mask)
+void OMAPLFBAtomicBoolSet(OMAPLFB_ATOMIC_BOOL *psAtomic, OMAPLFB_BOOL bVal)
{
- OMAPLFB_SWAPCHAIN *psSwapChain= (OMAPLFB_SWAPCHAIN *)arg;
- (void) OMAPLFBVSyncIHandler(psSwapChain);
- // printk (" VSync ISR \n");
+ atomic_set(psAtomic, (int)bVal);
}
-static inline int OMAPLFBRegisterVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+OMAPLFB_BOOL OMAPLFBAtomicBoolRead(OMAPLFB_ATOMIC_BOOL *psAtomic)
{
- return omap_dispc_register_isr(OMAPLFBVSyncISR, psSwapChain,
- DISPC_IRQ_VSYNC);
+ return (OMAPLFB_BOOL)atomic_read(psAtomic);
}
-static inline int OMAPLFBUnregisterVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+void OMAPLFBAtomicIntInit(OMAPLFB_ATOMIC_INT *psAtomic, int iVal)
{
- return omap_dispc_unregister_isr(OMAPLFBVSyncISR, psSwapChain,
- DISPC_IRQ_VSYNC);
+ atomic_set(psAtomic, iVal);
}
-#else
+void OMAPLFBAtomicIntDeInit(OMAPLFB_ATOMIC_INT *psAtomic)
+{
+}
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
-static void OMAPLFBVSyncISR(void *arg)
-#else
-static void OMAPLFBVSyncISR(void *arg, struct pt_regs unref__ *regs)
-#endif
+void OMAPLFBAtomicIntSet(OMAPLFB_ATOMIC_INT *psAtomic, int iVal)
{
- OMAPLFB_SWAPCHAIN *psSwapChain= (OMAPLFB_SWAPCHAIN *)arg;
- (void) OMAPLFBVSyncIHandler(psSwapChain);
+ atomic_set(psAtomic, iVal);
}
-static inline int OMAPLFBRegisterVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+int OMAPLFBAtomicIntRead(OMAPLFB_ATOMIC_INT *psAtomic)
{
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
- return omap_dispc_request_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain);
-#else
- return omap2_disp_register_isr(OMAPLFBVSyncISR, psSwapChain,
- DISPC_IRQSTATUS_VSYNC);
-#endif
+ return atomic_read(psAtomic);
}
-static inline int OMAPLFBUnregisterVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+void OMAPLFBAtomicIntInc(OMAPLFB_ATOMIC_INT *psAtomic)
{
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
- omap_dispc_free_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain);
- return 0;
-#else
- return omap2_disp_unregister_isr(OMAPLFBVSyncISR);
-#endif
+ atomic_inc(psAtomic);
}
-#endif
+OMAPLFB_ERROR OMAPLFBGetLibFuncAddr (char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable)
+{
+ if(strcmp("PVRGetDisplayClassJTable", szFunctionName) != 0)
+ {
+ return (OMAPLFB_ERROR_INVALID_PARAMS);
+ }
-#endif
+
+ *ppfnFuncTable = PVRGetDisplayClassJTable;
-#if !defined (SUPPORT_TI_DSS_FW)
+ return (OMAPLFB_OK);
+}
-IMG_VOID OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
+void OMAPLFBQueueBufferForSwap(OMAPLFB_SWAPCHAIN *psSwapChain, OMAPLFB_BUFFER *psBuffer)
{
- if (pOMAPLFBVSyncISRHandle == NULL)
- OMAPLFBInstallVSyncISR (psSwapChain);
+ int res = queue_work(psSwapChain->psWorkQueue, &psBuffer->sWork);
+
+ if (res == 0)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Buffer already on work queue\n", __FUNCTION__, psSwapChain->uiFBDevID);
+ }
}
-IMG_VOID OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
+static void WorkQueueHandler(struct work_struct *psWork)
{
- if (pOMAPLFBVSyncISRHandle != NULL)
- OMAPLFBUninstallVSyncISR (psSwapChain);
+ OMAPLFB_BUFFER *psBuffer = container_of(psWork, OMAPLFB_BUFFER, sWork);
+
+ OMAPLFBSwapHandler(psBuffer);
}
+
+OMAPLFB_ERROR OMAPLFBCreateSwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
+{
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34))
+ psSwapChain->psWorkQueue = __create_workqueue(DEVNAME, 1, 1, 1);
#else
+psSwapChain->psWorkQueue = create_workqueue(DEVNAME);
+#endif
+ if (psSwapChain->psWorkQueue == NULL)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: create_singlethreaded_workqueue failed\n", __FUNCTION__, psSwapChain->uiFBDevID);
-static void OMAPLFBVSyncWriteReg(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long ulOffset, unsigned long ulValue)
-{
- void *pvRegAddr = (void *)((char *)psSwapChain->pvRegs + ulOffset);
+ return (OMAPLFB_ERROR_INIT_FAILURE);
+ }
-
- writel(ulValue, pvRegAddr);
+ return (OMAPLFB_OK);
}
-static unsigned long OMAPLFBVSyncReadReg(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long ulOffset)
+void OMAPLFBInitBufferForSwap(OMAPLFB_BUFFER *psBuffer)
{
- return readl((char *)psSwapChain->pvRegs + ulOffset);
+ INIT_WORK(&psBuffer->sWork, WorkQueueHandler);
}
-void OMAPLFBEnableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
+void OMAPLFBDestroySwapQueue(OMAPLFB_SWAPCHAIN *psSwapChain)
{
-#if defined(SYS_USING_INTERRUPTS)
-
- unsigned long ulInterruptEnable = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_IRQENABLE);
- ulInterruptEnable |= OMAPLCD_INTMASK_VSYNC;
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_IRQENABLE, ulInterruptEnable );
-#endif
+ destroy_workqueue(psSwapChain->psWorkQueue);
}
-void OMAPLFBDisableVSyncInterrupt(OMAPLFB_SWAPCHAIN *psSwapChain)
+void OMAPLFBFlip(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_BUFFER *psBuffer)
{
-#if defined(SYS_USING_INTERRUPTS)
+ struct fb_var_screeninfo sFBVar;
+ int res;
+ unsigned long ulYResVirtual;
+
+ acquire_console_sem();
+
+ sFBVar = psDevInfo->psLINFBInfo->var;
+
+ sFBVar.xoffset = 0;
+ sFBVar.yoffset = psBuffer->ulYOffset;
+
+ ulYResVirtual = psBuffer->ulYOffset + sFBVar.yres;
+
- unsigned long ulInterruptEnable = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_IRQENABLE);
- ulInterruptEnable &= ~(OMAPLCD_INTMASK_VSYNC);
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_IRQENABLE, ulInterruptEnable);
-#endif
+ if (sFBVar.xres_virtual != sFBVar.xres || sFBVar.yres_virtual < ulYResVirtual)
+ {
+ sFBVar.xres_virtual = sFBVar.xres;
+ sFBVar.yres_virtual = ulYResVirtual;
+
+ sFBVar.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
+
+ res = fb_set_var(psDevInfo->psLINFBInfo, &sFBVar);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: fb_set_var failed (Y Offset: %lu, Error: %d)\n", __FUNCTION__, psDevInfo->uiFBDevID, psBuffer->ulYOffset, res);
+ }
+ }
+ else
+ {
+ res = fb_pan_display(psDevInfo->psLINFBInfo, &sFBVar);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: fb_pan_display failed (Y Offset: %lu, Error: %d)\n", __FUNCTION__, psDevInfo->uiFBDevID, psBuffer->ulYOffset, res);
+ }
+ }
+
+ release_console_sem();
}
-#endif
-#if !defined (SUPPORT_TI_DSS_FW)
-OMAP_ERROR OMAPLFBInstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+OMAPLFB_UPDATE_MODE OMAPLFBGetUpdateMode(OMAPLFB_DEVINFO *psDevInfo)
{
-#if !defined (CONFIG_OMAP2_DSS)
- if (omap_dispc_request_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain) != 0)
-#else
- int ret;
-#ifdef FBDEV_PRESENT
- ret = vps_grpx_register_isr ((vsync_callback_t)OMAPLFBVSyncISR, psSwapChain, 0); // fb_idx = 0
-#endif
-// if (ret == 0)
- pOMAPLFBVSyncISRHandle = (omap_dispc_isr_t *)NULL;
- // else
- // pOMAPLFBVSyncISRHandle = NULL;
- if (pOMAPLFBVSyncISRHandle != NULL)
-#endif
- return PVRSRV_ERROR_OUT_OF_MEMORY; /* not worth a proper mapping */
- return OMAP_OK;
-}
+#if 0
+ // struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+
+ struct ti81xxfb_device *psDSSDev = FB2TFB(psDevInfo->psLINFBInfo);
-OMAP_ERROR OMAPLFBUninstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain)
-{
-#if !defined (CONFIG_OMAP2_DSS)
- omap_dispc_free_irq(DISPC_IRQ_VSYNC, OMAPLFBVSyncISR, psSwapChain);
-#else
- int ret;
-#ifdef FBDEV_PRESENT
- ret = vps_grpx_unregister_isr((vsync_callback_t) OMAPLFBVSyncISR, (void *)psSwapChain, 0); // fb_idx = 0
-#endif
-#endif
- return OMAP_OK;
-}
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+ enum omap_dss_update_mode eMode;
-IMG_VOID OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain,
- IMG_UINT32 aPhyAddr)
-{
-#if !defined (CONFIG_OMAP2_DSS)
- omap_dispc_set_plane_base(0, aPhyAddr);
-#else
- OMAPLFBFlipDSS2 (psSwapChain, aPhyAddr);
+ if (psDSSDrv == NULL || psDSSDrv->get_update_mode == NULL)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Can't get update mode\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ return OMAPLFB_UPDATE_MODE_UNDEFINED;
+ }
+
+ eMode = psDSSDrv->get_update_mode(psDSSDev);
+ switch(eMode)
+ {
+ case OMAP_DSS_UPDATE_AUTO:
+ return OMAPLFB_UPDATE_MODE_AUTO;
+ case OMAP_DSS_UPDATE_MANUAL:
+ return OMAPLFB_UPDATE_MODE_MANUAL;
+ case OMAP_DSS_UPDATE_DISABLED:
+ return OMAPLFB_UPDATE_MODE_DISABLED;
+ default:
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown update mode (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eMode));
+ break;
+ }
+
+ return OMAPLFB_UPDATE_MODE_UNDEFINED;
#endif
+
+return OMAPLFB_UPDATE_MODE_AUTO;
}
-#else
-OMAP_ERROR OMAPLFBInstallVSyncISR(OMAPLFB_SWAPCHAIN *psSwapChain)
+OMAPLFB_BOOL OMAPLFBSetUpdateMode(OMAPLFB_DEVINFO *psDevInfo, OMAPLFB_UPDATE_MODE eMode)
{
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
- if (OMAPLFBRegisterVSyncISR(psSwapChain))
+#if 0
+// struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+
+ struct ti81xxfb_device *psDSSDev = FB2TFB(psDevInfo->psLINFBInfo);
+
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+ enum omap_dss_update_mode eDSSMode;
+ int res;
+
+ if (psDSSDrv == NULL || psDSSDrv->set_update_mode == NULL)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Can't set update mode\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ return OMAPLFB_FALSE;
+ }
+
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ eDSSMode = OMAP_DSS_UPDATE_AUTO;
+ break;
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ eDSSMode = OMAP_DSS_UPDATE_MANUAL;
+ break;
+ case OMAPLFB_UPDATE_MODE_DISABLED:
+ eDSSMode = OMAP_DSS_UPDATE_DISABLED;
+ break;
+ default:
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unknown update mode (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eMode));
+ return OMAPLFB_FALSE;
+ }
+
+ res = psDSSDrv->set_update_mode(psDSSDev, eDSSMode);
+ if (res != 0)
{
- printk(KERN_INFO DRIVER_PREFIX ": OMAPLFBInstallVSyncISR: Request OMAPLCD IRQ failed\n");
- return (OMAP_ERROR_INIT_FAILURE);
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: set_update_mode failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res));
}
+ return (res == 0);
#endif
- return (OMAP_OK);
+return 1;
}
-
-OMAP_ERROR OMAPLFBUninstallVSyncISR (OMAPLFB_SWAPCHAIN *psSwapChain)
+OMAPLFB_BOOL OMAPLFBWaitForVSync(OMAPLFB_DEVINFO *psDevInfo)
{
-#if defined(SYS_USING_INTERRUPTS)
- OMAPLFBDisableVSyncInterrupt(psSwapChain);
+#if 0
+
+// struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
- OMAPLFBUnregisterVSyncISR(psSwapChain);
+ struct ti81xxfb_device *psDSSDev = FB2TFB(psDevInfo->psLINFBInfo);
+
+ OMAP_DSS_MANAGER(psDSSMan, psDSSDev);
+
+ if (psDSSMan != NULL && WAIT_FOR_VSYNC(psDSSMan) != NULL)
+ {
+ int res = WAIT_FOR_VSYNC(psDSSMan)(psDSSMan);
+ if (res != 0)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Wait for vsync failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res));
+ return OMAPLFB_FALSE;
+ }
+ }
#endif
- return (OMAP_OK);
+
+ struct vps_grpx_ctrl *gctrl;
+ int r = 0;
+ struct ti81xxfb_info *ofbi;
+
+ ofbi = FB2TFB(psDevInfo->psLINFBInfo);
+
+ gctrl = ofbi->gctrl;
+ r = gctrl->wait_for_vsync(gctrl);
+
+ return OMAPLFB_TRUE;
}
-void OMAPLFBEnableDisplayRegisterAccess(void)
+OMAPLFB_BOOL OMAPLFBManualSync(OMAPLFB_DEVINFO *psDevInfo)
{
-#if !defined(SUPPORT_OMAP3430_OMAPFB3)
- omap2_disp_get_dss();
+#if 0
+// struct omap_dss_device *psDSSDev = fb2display(psDevInfo->psLINFBInfo);
+ struct ti81xxfb_device *psDSSDev = FB2TFB(psDevInfo->psLINFBInfo);
+ OMAP_DSS_DRIVER(psDSSDrv, psDSSDev);
+
+ if (psDSSDrv != NULL && psDSSDrv->sync != NULL)
+ {
+ int res = psDSSDrv->sync(psDSSDev);
+ if (res != 0)
+ {
+ printk(KERN_INFO DRIVER_PREFIX ": %s: Device %u: Sync failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return OMAPLFB_FALSE;
+ }
+ }
+printk (" OMAPLFBManualSync Not Supported \n");
#endif
+
+ return OMAPLFB_TRUE;
}
-void OMAPLFBDisableDisplayRegisterAccess(void)
+OMAPLFB_BOOL OMAPLFBCheckModeAndSync(OMAPLFB_DEVINFO *psDevInfo)
{
-#if !defined(SUPPORT_OMAP3430_OMAPFB3)
- omap2_disp_put_dss();
-#endif
-}
+ OMAPLFB_UPDATE_MODE eMode = OMAPLFBGetUpdateMode(psDevInfo);
+ switch(eMode)
+ {
+ case OMAPLFB_UPDATE_MODE_AUTO:
+ case OMAPLFB_UPDATE_MODE_MANUAL:
+ return OMAPLFBManualSync(psDevInfo);
+ default:
+ break;
+ }
-void OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long aPhyAddr)
+ return OMAPLFB_TRUE;
+}
+
+static int OMAPLFBFrameBufferEvents(struct notifier_block *psNotif,
+ unsigned long event, void *data)
{
- unsigned long control;
+ OMAPLFB_DEVINFO *psDevInfo;
+ struct fb_event *psFBEvent = (struct fb_event *)data;
+ struct fb_info *psFBInfo = psFBEvent->info;
+ OMAPLFB_BOOL bBlanked;
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_GFX_BA0, aPhyAddr);
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_GFX_BA1, aPhyAddr);
+ if (event != FB_EVENT_BLANK)
+ {
+ return 0;
+ }
- control = OMAPLFBVSyncReadReg(psSwapChain, OMAPLCD_CONTROL);
- control |= OMAP_CONTROL_GOLCD;
- OMAPLFBVSyncWriteReg(psSwapChain, OMAPLCD_CONTROL, control);
-}
+ bBlanked = (*(IMG_INT *)psFBEvent->data != 0) ? OMAPLFB_TRUE: OMAPLFB_FALSE;
+
+ psDevInfo = OMAPLFBGetDevInfoPtr(psFBInfo->node);
+
+#if 0
+ if (psDevInfo != NULL)
+ {
+ if (bBlanked)
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Blank event received\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ }
+ else
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Unblank event received\n", __FUNCTION__, psDevInfo->uiFBDevID));
+ }
+ }
+ else
+ {
+ DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": %s: Device %u: Blank/Unblank event for unknown framebuffer\n", __FUNCTION__, psFBInfo->node));
+ }
#endif
-#if defined(LDM_PLATFORM)
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, bBlanked);
+ OMAPLFBAtomicIntInc(&psDevInfo->sBlankEvents);
+ }
-static OMAP_BOOL bDeviceSuspended;
+ return 0;
+}
-static void OMAPLFBCommonSuspend(void)
+OMAPLFB_ERROR OMAPLFBUnblankDisplay(OMAPLFB_DEVINFO *psDevInfo)
{
- if (bDeviceSuspended)
+ int res;
+#ifdef FBDEV_PRESENT
+
+ acquire_console_sem();
+ res = fb_blank(psDevInfo->psLINFBInfo, 0);
+ release_console_sem();
+ if (res != 0 && res != -EINVAL)
{
- return;
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_blank failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return (OMAPLFB_ERROR_GENERIC);
}
- OMAPLFBDriverSuspend();
+#endif
+ return (OMAPLFB_OK);
+}
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
- bDeviceSuspended = OMAP_TRUE;
+static void OMAPLFBBlankDisplay(OMAPLFB_DEVINFO *psDevInfo)
+{
+ acquire_console_sem();
+ fb_blank(psDevInfo->psLINFBInfo, 1);
+ release_console_sem();
}
-static int OMAPLFBDriverSuspend_Entry(struct platform_device unref__ *pDevice, pm_message_t unref__ state)
+static void OMAPLFBEarlySuspendHandler(struct early_suspend *h)
{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverSuspend_Entry\n"));
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
- OMAPLFBCommonSuspend();
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
- return 0;
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBAtomicBoolSet(&psDevInfo->sEarlySuspendFlag, OMAPLFB_TRUE);
+ OMAPLFBBlankDisplay(psDevInfo);
+ }
+ }
}
-static int OMAPLFBDriverResume_Entry(struct platform_device unref__ *pDevice)
+static void OMAPLFBEarlyResumeHandler(struct early_suspend *h)
{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverResume_Entry\n"));
-
- OMAPLFBDriverResume();
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
- bDeviceSuspended = OMAP_FALSE;
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
+ {
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
- return 0;
+ if (psDevInfo != NULL)
+ {
+ OMAPLFBUnblankDisplay(psDevInfo);
+ OMAPLFBAtomicBoolSet(&psDevInfo->sEarlySuspendFlag, OMAPLFB_FALSE);
+ }
+ }
}
-static IMG_VOID OMAPLFBDriverShutdown_Entry(struct platform_device unref__ *pDevice)
+#endif
+
+OMAPLFB_ERROR OMAPLFBEnableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverShutdown_Entry\n"));
+ int res;
+ OMAPLFB_ERROR eError;
- OMAPLFBCommonSuspend();
-}
+
+ memset(&psDevInfo->sLINNotifBlock, 0, sizeof(psDevInfo->sLINNotifBlock));
-static struct platform_driver omaplfb_driver = {
- .driver = {
- .name = DRVNAME,
- },
- .suspend = OMAPLFBDriverSuspend_Entry,
- .resume = OMAPLFBDriverResume_Entry,
- .shutdown = OMAPLFBDriverShutdown_Entry,
-};
+ psDevInfo->sLINNotifBlock.notifier_call = OMAPLFBFrameBufferEvents;
-#if defined(MODULE)
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+ OMAPLFBAtomicIntSet(&psDevInfo->sBlankEvents, 0);
-static void OMAPLFBDeviceRelease_Entry(struct device unref__ *pDevice)
-{
- DEBUG_PRINTK((KERN_INFO DRIVER_PREFIX ": OMAPLFBDriverRelease_Entry\n"));
+ res = fb_register_client(&psDevInfo->sLINNotifBlock);
+ if (res != 0)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_register_client failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
- OMAPLFBCommonSuspend();
-}
+ return (OMAPLFB_ERROR_GENERIC);
+ }
-static struct platform_device omaplfb_device = {
- .name = DEVNAME,
- .id = -1,
- .dev = {
- .release = OMAPLFBDeviceRelease_Entry
+ eError = OMAPLFBUnblankDisplay(psDevInfo);
+ if (eError != OMAPLFB_OK)
+ {
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: UnblankDisplay failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, eError);
+ return eError;
}
-};
-#endif
+#ifdef CONFIG_HAS_EARLYSUSPEND
+ psDevInfo->sEarlySuspend.suspend = OMAPLFBEarlySuspendHandler;
+ psDevInfo->sEarlySuspend.resume = OMAPLFBEarlyResumeHandler;
+ psDevInfo->sEarlySuspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN;
+ register_early_suspend(&psDevInfo->sEarlySuspend);
+#endif
-#endif
+ return (OMAPLFB_OK);
+}
-static int __init OMAPLFB_Init(void)
+OMAPLFB_ERROR OMAPLFBDisableLFBEventNotification(OMAPLFB_DEVINFO *psDevInfo)
{
-#if defined(LDM_PLATFORM)
- int error;
+ int res;
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+ unregister_early_suspend(&psDevInfo->sEarlySuspend);
#endif
- if(OMAPLFBInit() != OMAP_OK)
+
+ res = fb_unregister_client(&psDevInfo->sLINNotifBlock);
+ if (res != 0)
{
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: OMAPLFBInit failed\n");
- return -ENODEV;
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: Device %u: fb_unregister_client failed (%d)\n", __FUNCTION__, psDevInfo->uiFBDevID, res);
+ return (OMAPLFB_ERROR_GENERIC);
}
-#if defined(LDM_PLATFORM)
- if ((error = platform_driver_register(&omaplfb_driver)) != 0)
+ OMAPLFBAtomicBoolSet(&psDevInfo->sBlanked, OMAPLFB_FALSE);
+
+ return (OMAPLFB_OK);
+}
+
+#if defined(SUPPORT_DRI_DRM) && defined(PVR_DISPLAY_CONTROLLER_DRM_IOCTL)
+static OMAPLFB_DEVINFO *OMAPLFBPVRDevIDToDevInfo(unsigned uiPVRDevID)
+{
+ unsigned uiMaxFBDevIDPlusOne = OMAPLFBMaxFBDevIDPlusOne();
+ unsigned i;
+
+ for (i=0; i < uiMaxFBDevIDPlusOne; i++)
{
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: Unable to register platform driver (%d)\n", error);
+ OMAPLFB_DEVINFO *psDevInfo = OMAPLFBGetDevInfoPtr(i);
- goto ExitDeinit;
+ if (psDevInfo->uiPVRDevID == uiPVRDevID)
+ {
+ return psDevInfo;
+ }
}
-#if defined(MODULE)
- if ((error = platform_device_register(&omaplfb_device)) != 0)
+ printk(KERN_WARNING DRIVER_PREFIX
+ ": %s: PVR Device %u: Couldn't find device\n", __FUNCTION__, uiPVRDevID);
+
+ return NULL;
+}
+
+int PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Ioctl)(struct drm_device unref__ *dev, void *arg, struct drm_file unref__ *pFile)
+{
+ uint32_t *puiArgs;
+ uint32_t uiCmd;
+ unsigned uiPVRDevID;
+ int ret = 0;
+ OMAPLFB_DEVINFO *psDevInfo;
+
+ if (arg == NULL)
{
- platform_driver_unregister(&omaplfb_driver);
+ return -EFAULT;
+ }
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: Unable to register platform device (%d)\n", error);
+ puiArgs = (uint32_t *)arg;
+ uiCmd = puiArgs[PVR_DRM_DISP_ARG_CMD];
+ uiPVRDevID = puiArgs[PVR_DRM_DISP_ARG_DEV];
- goto ExitDeinit;
+ psDevInfo = OMAPLFBPVRDevIDToDevInfo(uiPVRDevID);
+ if (psDevInfo == NULL)
+ {
+ return -EINVAL;
}
+
+
+ switch (uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_LEAVE_VT:
+ case PVR_DRM_DISP_CMD_ENTER_VT:
+ {
+ OMAPLFB_BOOL bLeaveVT = (uiCmd == PVR_DRM_DISP_CMD_LEAVE_VT);
+ DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: %s\n",
+ __FUNCTION__, uiPVRDevID,
+ bLeaveVT ? "Leave VT" : "Enter VT"));
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ OMAPLFBAtomicBoolSet(&psDevInfo->sLeaveVT, bLeaveVT);
+ if (psDevInfo->psSwapChain != NULL)
+ {
+ flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
+
+ if (bLeaveVT)
+ {
+ OMAPLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
+ (void) OMAPLFBCheckModeAndSync(psDevInfo);
+ }
+ }
+
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+ (void) OMAPLFBUnblankDisplay(psDevInfo);
+ break;
+ }
+ case PVR_DRM_DISP_CMD_ON:
+ case PVR_DRM_DISP_CMD_STANDBY:
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ case PVR_DRM_DISP_CMD_OFF:
+ {
+ int iFBMode;
+#if defined(DEBUG)
+ {
+ const char *pszMode;
+ switch(uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_ON:
+ pszMode = "On";
+ break;
+ case PVR_DRM_DISP_CMD_STANDBY:
+ pszMode = "Standby";
+ break;
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ pszMode = "Suspend";
+ break;
+ case PVR_DRM_DISP_CMD_OFF:
+ pszMode = "Off";
+ break;
+ default:
+ pszMode = "(Unknown Mode)";
+ break;
+ }
+ printk (KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: Display %s\n",
+ __FUNCTION__, uiPVRDevID, pszMode);
+ }
#endif
+ switch(uiCmd)
+ {
+ case PVR_DRM_DISP_CMD_ON:
+ iFBMode = FB_BLANK_UNBLANK;
+ break;
+ case PVR_DRM_DISP_CMD_STANDBY:
+ iFBMode = FB_BLANK_HSYNC_SUSPEND;
+ break;
+ case PVR_DRM_DISP_CMD_SUSPEND:
+ iFBMode = FB_BLANK_VSYNC_SUSPEND;
+ break;
+ case PVR_DRM_DISP_CMD_OFF:
+ iFBMode = FB_BLANK_POWERDOWN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ OMAPLFBCreateSwapChainLock(psDevInfo);
+
+ if (psDevInfo->psSwapChain != NULL)
+ {
+ flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
+ }
+
+ acquire_console_sem();
+ ret = fb_blank(psDevInfo->psLINFBInfo, iFBMode);
+ release_console_sem();
+
+ OMAPLFBCreateSwapChainUnLock(psDevInfo);
+
+ break;
+ }
+ default:
+ {
+ ret = -EINVAL;
+ break;
+ }
+ }
-#endif
+ return ret;
+}
+#endif
- return 0;
+#if defined(SUPPORT_DRI_DRM)
+int PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Init)(struct drm_device unref__ *dev)
+#else
+static int __init OMAPLFB_Init(void)
+#endif
+{
-#if defined(LDM_PLATFORM)
-ExitDeinit:
- if(OMAPLFBDeinit() != OMAP_OK)
+ if(OMAPLFBInit() != OMAPLFB_OK)
{
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Init: OMAPLFBDeinit failed\n");
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: OMAPLFBInit failed\n", __FUNCTION__);
+ return -ENODEV;
}
- return -ENODEV;
-#endif
+ return 0;
+
}
-static IMG_VOID __exit OMAPLFB_Cleanup(IMG_VOID)
-{
-#if defined (LDM_PLATFORM)
-#if defined (MODULE)
- platform_device_unregister(&omaplfb_device);
-#endif
- platform_driver_unregister(&omaplfb_driver);
+#if defined(SUPPORT_DRI_DRM)
+void PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Cleanup)(struct drm_device unref__ *dev)
+#else
+static void __exit OMAPLFB_Cleanup(void)
#endif
-
- if(OMAPLFBDeinit() != OMAP_OK)
+{
+ if(OMAPLFBDeInit() != OMAPLFB_OK)
{
- printk(KERN_WARNING DRIVER_PREFIX ": OMAPLFB_Cleanup: OMAPLFBDeinit failed\n");
+ printk(KERN_WARNING DRIVER_PREFIX ": %s: OMAPLFBDeInit failed\n", __FUNCTION__);
}
}
-module_init(OMAPLFB_Init);
+#if !defined(SUPPORT_DRI_DRM)
+late_initcall(OMAPLFB_Init);
module_exit(OMAPLFB_Cleanup);
-
+#endif
--- /dev/null
+SYS_USING_INTERRUPTS = 1
+SUPPORT_OMAP3430_OMAPFB3 =1
+SUPPORT_TI_DSS_FW = 0
+PVR_LINUX_USING_WORKQUEUES = 1
+SUPPORT_DRI_DRM =1
+SYS_CFLAGS.$(SYS_USING_INTERRUPTS) += -DSYS_USING_INTERRUPTS
+SYS_CFLAGS.$(SUPPORT_OMAP3430_OMAPFB3) += -DSUPPORT_OMAP3430_OMAPFB3
+SYS_CFLAGS.$(SUPPORT_TI_DSS_FW) += -DSUPPORT_TI_DSS_FW
+SYS_CFLAGS.$(PVR_LINUX_USING_WORKQUEUES) += -DPVR_LINUX_USING_WORKQUEUES
+
+EXT_SOURCE_DIR := $(KERNELDIR)/drivers/gpu/drm
+
+EXTRA_CFLAGS = -DLINUX \
+ -DCONFIG_PCI \
+ -Wno-error \
+ -I$(KERNELDIR)/include/drm \
+ -I$(KERNELDIR)/include/linux \
+ -I$(EXT_SOURCE_DIR) \
+ $(SYS_CFLAGS.1) \
+
+ifeq ($(SUPPORT_DRI_DRM),1)
+EXTRA_CFLAGS += -DPVR_DISPLAY_CONTROLLER_DRM_IOCTL
+ifeq ($(TI_PLATFORM),omap4)
+EXTRA_CFLAGS += -DCONFIG_SLOW_WORK
+endif
+endif
+
+obj-m := drm.o
+ifeq ($(TI_PLATFORM),omap4)
+drm-y := pvr_drm_stubs.o drm_auth.o drm_bufs.o drm_cache.o drm_context.o drm_dma.o drm_drawable.o drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
+ drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
+ drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
+ drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
+ drm_crtc.o drm_modes.o drm_edid.o \
+ drm_info.o drm_debugfs.o drm_encoder_slave.o
+else
+drm-y := pvr_drm_stubs.o drm_auth.o drm_bufs.o drm_cache.o drm_context.o drm_dma.o drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
+ drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
+ drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
+ drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
+ drm_crtc.o drm_modes.o drm_edid.o \
+ drm_info.o drm_debugfs.o drm_encoder_slave.o drm_global.o drm_platform.o drm_trace_points.o
+endif
+# less than 2.6.32 kernel
+
+#drm-y := pvr_drm_stubs.o drm_auth.o drm_bufs.o drm_cache.o drm_context.o drm_dma.o drm_drawable.o drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
+# drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
+# drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
+# drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
+# drm_crtc.o drm_modes.o drm_edid.o \
+# drm_info.o drm_debugfs.o drm_encoder_slave.o
--- /dev/null
+obj-m := drm.o
+
+EXT_SOURCE_DIR := $(KERNELDIR)/drivers/gpu/drm
+EXT_BUILD_DIR :=tmp_$(TI_PLATFORM)_$(BUILD)_drm
+
+FILES := \
+pvr_drm_stubs.c \
+$(EXT_BUILD_DIR)/drm_auth.c \
+
+
+EXT_SOURCE_LIST := \
+ drm_auth.c drm_bufs.c drm_cache.c \
+ drm_context.c drm_dma.c drm_drawable.c \
+ drm_drv.c drm_fops.c drm_gem.c drm_ioctl.c drm_irq.c \
+ drm_lock.c drm_memory.c drm_proc.c drm_stub.c drm_vm.c \
+ drm_agpsupport.c drm_scatter.c ati_pcigart.c drm_pci.c \
+ drm_sysfs.c drm_hashtab.c drm_sman.c drm_mm.c \
+ drm_crtc.c drm_modes.c drm_edid.c \
+ drm_info.c drm_debugfs.c drm_encoder_slave.c
+
+EXT_SOURCES := $(addprefix $(EXT_BUILD_DIR)/,$(EXT_SOURCE_LIST))
+FILES += $(EXT_SOURCES)
+
+EXTRA_CFLAGS += -I$(KERNELDIR)/include/drm
+EXTRA_CFLAGS += -I$(EXT_SOURCE_DIR)
+
+EXTRA_CFLAGS += -DCONFIG_PCI -Wno-error
+EXTRA_CFLAS += $(ALL_CFLAGS)
+
+
+drm-y := $(FILES:.c=.o)
--- /dev/null
+/**
+ * \file ati_pcigart.c
+ * ATI PCI GART support
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
+
+static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
+ PAGE_SIZE);
+ if (gart_info->table_handle == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void drm_ati_free_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ drm_pci_free(dev, gart_info->table_handle);
+ gart_info->table_handle = NULL;
+}
+
+int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long pages;
+ int i;
+ int max_pages;
+
+ /* we need to support large memory configurations */
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ return 0;
+ }
+
+ if (gart_info->bus_addr) {
+
+ max_pages = (gart_info->table_size / sizeof(u32));
+ pages = (entry->pages <= max_pages)
+ ? entry->pages : max_pages;
+
+ for (i = 0; i < pages; i++) {
+ if (!entry->busaddr[i])
+ break;
+ pci_unmap_page(dev->pdev, entry->busaddr[i],
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
+ gart_info->bus_addr = 0;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
+ gart_info->table_handle) {
+ drm_ati_free_pcigart_table(dev, gart_info);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
+
+int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_local_map *map = &gart_info->mapping;
+ struct drm_sg_mem *entry = dev->sg;
+ void *address = NULL;
+ unsigned long pages;
+ u32 *pci_gart = NULL, page_base, gart_idx;
+ dma_addr_t bus_address = 0;
+ int i, j, ret = 0;
+ int max_ati_pages, max_real_pages;
+
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ goto done;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
+
+ if (pci_set_dma_mask(dev->pdev, gart_info->table_mask)) {
+ DRM_ERROR("fail to set dma mask to 0x%Lx\n",
+ (unsigned long long)gart_info->table_mask);
+ ret = 1;
+ goto done;
+ }
+
+ ret = drm_ati_alloc_pcigart_table(dev, gart_info);
+ if (ret) {
+ DRM_ERROR("cannot allocate PCI GART page!\n");
+ goto done;
+ }
+
+ pci_gart = gart_info->table_handle->vaddr;
+ address = gart_info->table_handle->vaddr;
+ bus_address = gart_info->table_handle->busaddr;
+ } else {
+ address = gart_info->addr;
+ bus_address = gart_info->bus_addr;
+ DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
+ (unsigned long long)bus_address,
+ (unsigned long)address);
+ }
+
+
+ max_ati_pages = (gart_info->table_size / sizeof(u32));
+ max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE);
+ pages = (entry->pages <= max_real_pages)
+ ? entry->pages : max_real_pages;
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ memset(pci_gart, 0, max_ati_pages * sizeof(u32));
+ } else {
+ memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32));
+ }
+
+ gart_idx = 0;
+ for (i = 0; i < pages; i++) {
+ /* we need to support large memory configurations */
+ entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i],
+ 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (pci_dma_mapping_error(dev->pdev, entry->busaddr[i])) {
+ DRM_ERROR("unable to map PCIGART pages!\n");
+ drm_ati_pcigart_cleanup(dev, gart_info);
+ address = NULL;
+ bus_address = 0;
+ goto done;
+ }
+ page_base = (u32) entry->busaddr[i];
+
+ for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
+ u32 val;
+
+ switch(gart_info->gart_reg_if) {
+ case DRM_ATI_GART_IGP:
+ val = page_base | 0xc;
+ break;
+ case DRM_ATI_GART_PCIE:
+ val = (page_base >> 8) | 0xc;
+ break;
+ default:
+ case DRM_ATI_GART_PCI:
+ val = page_base;
+ break;
+ }
+ if (gart_info->gart_table_location ==
+ DRM_ATI_GART_MAIN)
+ pci_gart[gart_idx] = cpu_to_le32(val);
+ else
+ DRM_WRITE32(map, gart_idx * sizeof(u32), val);
+ gart_idx++;
+ page_base += ATI_PCIGART_PAGE_SIZE;
+ }
+ }
+ ret = 1;
+
+#if defined(__i386__) || defined(__x86_64__)
+ wbinvd();
+#else
+ mb();
+#endif
+
+ done:
+ gart_info->addr = address;
+ gart_info->bus_addr = bus_address;
+ return ret;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_init);
--- /dev/null
+/**
+ * \file drm_agpsupport.c
+ * DRM support for AGP/GART backend
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#if __OS_HAS_AGP
+
+#include <asm/agp.h>
+
+/**
+ * Get AGP information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a (output) drm_agp_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been initialized and acquired and fills in the
+ * drm_agp_info structure with the information in drm_agp_head::agp_info.
+ */
+int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info)
+{
+ DRM_AGP_KERN *kern;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ kern = &dev->agp->agp_info;
+ info->agp_version_major = kern->version.major;
+ info->agp_version_minor = kern->version.minor;
+ info->mode = kern->mode;
+ info->aperture_base = kern->aper_base;
+ info->aperture_size = kern->aper_size * 1024 * 1024;
+ info->memory_allowed = kern->max_memory << PAGE_SHIFT;
+ info->memory_used = kern->current_memory << PAGE_SHIFT;
+ info->id_vendor = kern->device->vendor;
+ info->id_device = kern->device->device;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_info);
+
+int drm_agp_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_info *info = data;
+ int err;
+
+ err = drm_agp_info(dev, info);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/**
+ * Acquire the AGP device.
+ *
+ * \param dev DRM device that is to acquire AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire(struct drm_device * dev)
+{
+ if (!dev->agp)
+ return -ENODEV;
+ if (dev->agp->acquired)
+ return -EBUSY;
+ if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev)))
+ return -ENODEV;
+ dev->agp->acquired = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_acquire);
+
+/**
+ * Acquire the AGP device (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_acquire((struct drm_device *) file_priv->minor->dev);
+}
+
+/**
+ * Release the AGP device.
+ *
+ * \param dev DRM device that is to release AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired and calls \c agp_backend_release.
+ */
+int drm_agp_release(struct drm_device * dev)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ agp_backend_release(dev->agp->bridge);
+ dev->agp->acquired = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_release);
+
+int drm_agp_release_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_release(dev);
+}
+
+/**
+ * Enable the AGP bus.
+ *
+ * \param dev DRM device that has previously acquired AGP.
+ * \param mode Requested AGP mode.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired but not enabled, and calls
+ * \c agp_enable.
+ */
+int drm_agp_enable(struct drm_device * dev, struct drm_agp_mode mode)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ dev->agp->mode = mode.mode;
+ agp_enable(dev->agp->bridge, mode.mode);
+ dev->agp->enabled = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_enable);
+
+int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_mode *mode = data;
+
+ return drm_agp_enable(dev, *mode);
+}
+
+/**
+ * Allocate AGP memory.
+ *
+ * \param inode device inode.
+ * \param file_priv file private pointer.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired, allocates the
+ * memory via agp_allocate_memory() and creates a drm_agp_mem entry for it.
+ */
+int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+ DRM_AGP_MEM *memory;
+ unsigned long pages;
+ u32 type;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ type = (u32) request->type;
+ if (!(memory = agp_allocate_memory(dev->agp->bridge, pages, type))) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ entry->handle = (unsigned long)memory->key + 1;
+ entry->memory = memory;
+ entry->bound = 0;
+ entry->pages = pages;
+ list_add(&entry->head, &dev->agp->memory);
+
+ request->handle = entry->handle;
+ request->physical = memory->physical;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_alloc);
+
+
+int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_alloc(dev, request);
+}
+
+/**
+ * Search for the AGP memory entry associated with a handle.
+ *
+ * \param dev DRM device structure.
+ * \param handle AGP memory handle.
+ * \return pointer to the drm_agp_mem structure associated with \p handle.
+ *
+ * Walks through drm_agp_head::memory until finding a matching handle.
+ */
+static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device * dev,
+ unsigned long handle)
+{
+ struct drm_agp_mem *entry;
+
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if (entry->handle == handle)
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+ * Unbind AGP memory from the GATT (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and acquired, looks-up the AGP memory
+ * entry and passes it to the unbind_agp() function.
+ */
+int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int ret;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (!entry->bound)
+ return -EINVAL;
+ ret = drm_unbind_agp(entry->memory);
+ if (ret == 0)
+ entry->bound = 0;
+ return ret;
+}
+EXPORT_SYMBOL(drm_agp_unbind);
+
+
+int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_unbind(dev, request);
+}
+
+/**
+ * Bind AGP memory into the GATT (ioctl)
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and that no memory
+ * is currently bound into the GATT. Looks-up the AGP memory entry and passes
+ * it to bind_agp() function.
+ */
+int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int retcode;
+ int page;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ return -EINVAL;
+ page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
+ if ((retcode = drm_bind_agp(entry->memory, page)))
+ return retcode;
+ entry->bound = dev->agp->base + (page << PAGE_SHIFT);
+ DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
+ dev->agp->base, entry->bound);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_bind);
+
+
+int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_bind(dev, request);
+}
+
+/**
+ * Free AGP memory (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and looks up the
+ * AGP memory entry. If the memory it's currently bound, unbind it via
+ * unbind_agp(). Frees it via free_agp() as well as the entry itself
+ * and unlinks from the doubly linked list it's inserted in.
+ */
+int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+
+ list_del(&entry->head);
+
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_free);
+
+
+
+int drm_agp_free_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_free(dev, request);
+}
+
+/**
+ * Initialize the AGP resources.
+ *
+ * \return pointer to a drm_agp_head structure.
+ *
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
+ */
+struct drm_agp_head *drm_agp_init(struct drm_device *dev)
+{
+ struct drm_agp_head *head = NULL;
+
+ if (!(head = kmalloc(sizeof(*head), GFP_KERNEL)))
+ return NULL;
+ memset((void *)head, 0, sizeof(*head));
+ head->bridge = agp_find_bridge(dev->pdev);
+ if (!head->bridge) {
+ if (!(head->bridge = agp_backend_acquire(dev->pdev))) {
+ kfree(head);
+ return NULL;
+ }
+ agp_copy_info(head->bridge, &head->agp_info);
+ agp_backend_release(head->bridge);
+ } else {
+ agp_copy_info(head->bridge, &head->agp_info);
+ }
+ if (head->agp_info.chipset == NOT_SUPPORTED) {
+ kfree(head);
+ return NULL;
+ }
+ INIT_LIST_HEAD(&head->memory);
+ head->cant_use_aperture = head->agp_info.cant_use_aperture;
+ head->page_mask = head->agp_info.page_mask;
+ head->base = head->agp_info.aper_base;
+ return head;
+}
+
+/**
+ * Binds a collection of pages into AGP memory at the given offset, returning
+ * the AGP memory structure containing them.
+ *
+ * No reference is held on the pages during this time -- it is up to the
+ * caller to handle that.
+ */
+DRM_AGP_MEM *
+drm_agp_bind_pages(struct drm_device *dev,
+ struct page **pages,
+ unsigned long num_pages,
+ uint32_t gtt_offset,
+ u32 type)
+{
+ DRM_AGP_MEM *mem;
+ int ret, i;
+
+ DRM_DEBUG("\n");
+
+ mem = agp_allocate_memory(dev->agp->bridge, num_pages,
+ type);
+ if (mem == NULL) {
+ DRM_ERROR("Failed to allocate memory for %ld pages\n",
+ num_pages);
+ return NULL;
+ }
+
+ for (i = 0; i < num_pages; i++)
+ mem->pages[i] = pages[i];
+ mem->page_count = num_pages;
+
+ mem->is_flushed = true;
+ ret = agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
+ if (ret != 0) {
+ DRM_ERROR("Failed to bind AGP memory: %d\n", ret);
+ agp_free_memory(mem);
+ return NULL;
+ }
+
+ return mem;
+}
+EXPORT_SYMBOL(drm_agp_bind_pages);
+
+void drm_agp_chipset_flush(struct drm_device *dev)
+{
+ agp_flush_chipset(dev->agp->bridge);
+}
+EXPORT_SYMBOL(drm_agp_chipset_flush);
+
+#endif /* __OS_HAS_AGP */
--- /dev/null
+/**
+ * \file drm_auth.c
+ * IOCTLs for authentication
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Find the file with the given magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches in drm_device::magiclist within all files with the same hash key
+ * the one with matching magic number, while holding the drm_device::struct_mutex
+ * lock.
+ */
+static struct drm_file *drm_find_file(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_file *retval = NULL;
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ if (!drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ retval = pt->priv;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return retval;
+}
+
+/**
+ * Adds a magic number.
+ *
+ * \param dev DRM device.
+ * \param priv file private data.
+ * \param magic magic number.
+ *
+ * Creates a drm_magic_entry structure and appends to the linked list
+ * associated the magic number hash key in drm_device::magiclist, while holding
+ * the drm_device::struct_mutex lock.
+ */
+static int drm_add_magic(struct drm_master *master, struct drm_file *priv,
+ drm_magic_t magic)
+{
+ struct drm_magic_entry *entry;
+ struct drm_device *dev = master->minor->dev;
+ DRM_DEBUG("%d\n", magic);
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+ entry->priv = priv;
+ entry->hash_item.key = (unsigned long)magic;
+ mutex_lock(&dev->struct_mutex);
+ drm_ht_insert_item(&master->magiclist, &entry->hash_item);
+ list_add_tail(&entry->head, &master->magicfree);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Remove a magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches and unlinks the entry in drm_device::magiclist with the magic
+ * number hash key, while holding the drm_device::struct_mutex lock.
+ */
+static int drm_remove_magic(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ DRM_DEBUG("%d\n", magic);
+
+ mutex_lock(&dev->struct_mutex);
+ if (drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ drm_ht_remove_item(&master->magiclist, hash);
+ list_del(&pt->head);
+ mutex_unlock(&dev->struct_mutex);
+
+ kfree(pt);
+
+ return 0;
+}
+
+/**
+ * Get a unique magic number (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a resulting drm_auth structure.
+ * \return zero on success, or a negative number on failure.
+ *
+ * If there is a magic number in drm_file::magic then use it, otherwise
+ * searches an unique non-zero magic number and add it associating it with \p
+ * file_priv.
+ */
+int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ static drm_magic_t sequence = 0;
+ static DEFINE_SPINLOCK(lock);
+ struct drm_auth *auth = data;
+
+ /* Find unique magic */
+ if (file_priv->magic) {
+ auth->magic = file_priv->magic;
+ } else {
+ do {
+ spin_lock(&lock);
+ if (!sequence)
+ ++sequence; /* reserve 0 */
+ auth->magic = sequence++;
+ spin_unlock(&lock);
+ } while (drm_find_file(file_priv->master, auth->magic));
+ file_priv->magic = auth->magic;
+ drm_add_magic(file_priv->master, file_priv, auth->magic);
+ }
+
+ DRM_DEBUG("%u\n", auth->magic);
+
+ return 0;
+}
+
+/**
+ * Authenticate with a magic.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_auth structure.
+ * \return zero if authentication successed, or a negative number otherwise.
+ *
+ * Checks if \p file_priv is associated with the magic number passed in \arg.
+ */
+int drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_auth *auth = data;
+ struct drm_file *file;
+
+ DRM_DEBUG("%u\n", auth->magic);
+ if ((file = drm_find_file(file_priv->master, auth->magic))) {
+ file->authenticated = 1;
+ drm_remove_magic(file_priv->master, auth->magic);
+ return 0;
+ }
+ return -EINVAL;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2010 Pauli Nieminen.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Multipart buffer for coping data which is larger than the page size.
+ *
+ * Authors:
+ * Pauli Nieminen <suokkos-at-gmail-dot-com>
+ */
+
+#include "drm_buffer.h"
+
+/**
+ * Allocate the drm buffer object.
+ *
+ * buf: Pointer to a pointer where the object is stored.
+ * size: The number of bytes to allocate.
+ */
+int drm_buffer_alloc(struct drm_buffer **buf, int size)
+{
+ int nr_pages = size / PAGE_SIZE + 1;
+ int idx;
+
+ /* Allocating pointer table to end of structure makes drm_buffer
+ * variable sized */
+ *buf = kzalloc(sizeof(struct drm_buffer) + nr_pages*sizeof(char *),
+ GFP_KERNEL);
+
+ if (*buf == NULL) {
+ DRM_ERROR("Failed to allocate drm buffer object to hold"
+ " %d bytes in %d pages.\n",
+ size, nr_pages);
+ return -ENOMEM;
+ }
+
+ (*buf)->size = size;
+
+ for (idx = 0; idx < nr_pages; ++idx) {
+
+ (*buf)->data[idx] =
+ kmalloc(min(PAGE_SIZE, size - idx * PAGE_SIZE),
+ GFP_KERNEL);
+
+
+ if ((*buf)->data[idx] == NULL) {
+ DRM_ERROR("Failed to allocate %dth page for drm"
+ " buffer with %d bytes and %d pages.\n",
+ idx + 1, size, nr_pages);
+ goto error_out;
+ }
+
+ }
+
+ return 0;
+
+error_out:
+
+ /* Only last element can be null pointer so check for it first. */
+ if ((*buf)->data[idx])
+ kfree((*buf)->data[idx]);
+
+ for (--idx; idx >= 0; --idx)
+ kfree((*buf)->data[idx]);
+
+ kfree(*buf);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_buffer_alloc);
+
+/**
+ * Copy the user data to the begin of the buffer and reset the processing
+ * iterator.
+ *
+ * user_data: A pointer the data that is copied to the buffer.
+ * size: The Number of bytes to copy.
+ */
+int drm_buffer_copy_from_user(struct drm_buffer *buf,
+ void __user *user_data, int size)
+{
+ int nr_pages = size / PAGE_SIZE + 1;
+ int idx;
+
+ if (size > buf->size) {
+ DRM_ERROR("Requesting to copy %d bytes to a drm buffer with"
+ " %d bytes space\n",
+ size, buf->size);
+ return -EFAULT;
+ }
+
+ for (idx = 0; idx < nr_pages; ++idx) {
+
+ if (DRM_COPY_FROM_USER(buf->data[idx],
+ user_data + idx * PAGE_SIZE,
+ min(PAGE_SIZE, size - idx * PAGE_SIZE))) {
+ DRM_ERROR("Failed to copy user data (%p) to drm buffer"
+ " (%p) %dth page.\n",
+ user_data, buf, idx);
+ return -EFAULT;
+
+ }
+ }
+ buf->iterator = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_buffer_copy_from_user);
+
+/**
+ * Free the drm buffer object
+ */
+void drm_buffer_free(struct drm_buffer *buf)
+{
+
+ if (buf != NULL) {
+
+ int nr_pages = buf->size / PAGE_SIZE + 1;
+ int idx;
+ for (idx = 0; idx < nr_pages; ++idx)
+ kfree(buf->data[idx]);
+
+ kfree(buf);
+ }
+}
+EXPORT_SYMBOL(drm_buffer_free);
+
+/**
+ * Read an object from buffer that may be split to multiple parts. If object
+ * is not split function just returns the pointer to object in buffer. But in
+ * case of split object data is copied to given stack object that is suplied
+ * by caller.
+ *
+ * The processing location of the buffer is also advanced to the next byte
+ * after the object.
+ *
+ * objsize: The size of the objet in bytes.
+ * stack_obj: A pointer to a memory location where object can be copied.
+ */
+void *drm_buffer_read_object(struct drm_buffer *buf,
+ int objsize, void *stack_obj)
+{
+ int idx = drm_buffer_index(buf);
+ int page = drm_buffer_page(buf);
+ void *obj = NULL;
+
+ if (idx + objsize <= PAGE_SIZE) {
+ obj = &buf->data[page][idx];
+ } else {
+ /* The object is split which forces copy to temporary object.*/
+ int beginsz = PAGE_SIZE - idx;
+ memcpy(stack_obj, &buf->data[page][idx], beginsz);
+
+ memcpy(stack_obj + beginsz, &buf->data[page + 1][0],
+ objsize - beginsz);
+
+ obj = stack_obj;
+ }
+
+ drm_buffer_advance(buf, objsize);
+ return obj;
+}
+EXPORT_SYMBOL(drm_buffer_read_object);
--- /dev/null
+/**
+ * \file drm_bufs.c
+ * Generic buffer template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/log2.h>
+#include <asm/shmparam.h>
+#include "drmP.h"
+
+static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
+ struct drm_local_map *map)
+{
+ struct drm_map_list *entry;
+ list_for_each_entry(entry, &dev->maplist, head) {
+ /*
+ * Because the kernel-userspace ABI is fixed at a 32-bit offset
+ * while PCI resources may live above that, we ignore the map
+ * offset for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+ * It is assumed that each driver will have only one resource of
+ * each type.
+ */
+ if (!entry->map ||
+ map->type != entry->map->type ||
+ entry->master != dev->primary->master)
+ continue;
+ switch (map->type) {
+ case _DRM_SHM:
+ if (map->flags != _DRM_CONTAINS_LOCK)
+ break;
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ return entry;
+ default: /* Make gcc happy */
+ ;
+ }
+ if (entry->map->offset == map->offset)
+ return entry;
+ }
+
+ return NULL;
+}
+
+static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
+ unsigned long user_token, int hashed_handle, int shm)
+{
+ int use_hashed_handle, shift;
+ unsigned long add;
+
+#if (BITS_PER_LONG == 64)
+ use_hashed_handle = ((user_token & 0xFFFFFFFF00000000UL) || hashed_handle);
+#elif (BITS_PER_LONG == 32)
+ use_hashed_handle = hashed_handle;
+#else
+#error Unsupported long size. Neither 64 nor 32 bits.
+#endif
+
+ if (!use_hashed_handle) {
+ int ret;
+ hash->key = user_token >> PAGE_SHIFT;
+ ret = drm_ht_insert_item(&dev->map_hash, hash);
+ if (ret != -EINVAL)
+ return ret;
+ }
+
+ shift = 0;
+ add = DRM_MAP_HASH_OFFSET >> PAGE_SHIFT;
+ if (shm && (SHMLBA > PAGE_SIZE)) {
+ int bits = ilog2(SHMLBA >> PAGE_SHIFT) + 1;
+
+ /* For shared memory, we have to preserve the SHMLBA
+ * bits of the eventual vma->vm_pgoff value during
+ * mmap(). Otherwise we run into cache aliasing problems
+ * on some platforms. On these platforms, the pgoff of
+ * a mmap() request is used to pick a suitable virtual
+ * address for the mmap() region such that it will not
+ * cause cache aliasing problems.
+ *
+ * Therefore, make sure the SHMLBA relevant bits of the
+ * hash value we use are equal to those in the original
+ * kernel virtual address.
+ */
+ shift = bits;
+ add |= ((user_token >> PAGE_SHIFT) & ((1UL << bits) - 1UL));
+ }
+
+ return drm_ht_just_insert_please(&dev->map_hash, hash,
+ user_token, 32 - PAGE_SHIFT - 3,
+ shift, add);
+}
+
+/**
+ * Core function to create a range of memory available for mapping by a
+ * non-root process.
+ *
+ * Adjusts the memory offset to its absolute value according to the mapping
+ * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where
+ * applicable and if supported by the kernel.
+ */
+static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags,
+ struct drm_map_list ** maplist)
+{
+ struct drm_local_map *map;
+ struct drm_map_list *list;
+ drm_dma_handle_t *dmah;
+ unsigned long user_token;
+ int ret;
+
+ map = kmalloc(sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ map->offset = offset;
+ map->size = size;
+ map->flags = flags;
+ map->type = type;
+
+ /* Only allow shared memory to be removable since we only keep enough
+ * book keeping information about shared memory to allow for removal
+ * when processes fork.
+ */
+ if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) {
+ kfree(map);
+ return -EINVAL;
+ }
+ DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n",
+ (unsigned long long)map->offset, map->size, map->type);
+
+ /* page-align _DRM_SHM maps. They are allocated here so there is no security
+ * hole created by that and it works around various broken drivers that use
+ * a non-aligned quantity to map the SAREA. --BenH
+ */
+ if (map->type == _DRM_SHM)
+ map->size = PAGE_ALIGN(map->size);
+
+ if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = NULL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__arm__)
+ if (map->offset + (map->size-1) < map->offset ||
+ map->offset < virt_to_phys(high_memory)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#endif
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* Some drivers preinitialize some maps, without the X Server
+ * needing to be aware of it. Therefore, we just return success
+ * when the server tries to create a duplicate map.
+ */
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if (list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size,
+ list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+
+ if (drm_core_has_MTRR(dev)) {
+ if (map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING)) {
+ map->mtrr = mtrr_add(map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+ if (map->type == _DRM_REGISTERS) {
+ map->handle = ioremap(map->offset, map->size);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ }
+
+ break;
+ case _DRM_SHM:
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if(list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size, list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+ map->handle = vmalloc_user(map->size);
+ DRM_DEBUG("%lu %d %p\n",
+ map->size, drm_order(map->size), map->handle);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->offset = (unsigned long)map->handle;
+ if (map->flags & _DRM_CONTAINS_LOCK) {
+ /* Prevent a 2nd X Server from creating a 2nd lock */
+ if (dev->primary->master->lock.hw_lock != NULL) {
+ vfree(map->handle);
+ kfree(map);
+ return -EBUSY;
+ }
+ dev->sigdata.lock = dev->primary->master->lock.hw_lock = map->handle; /* Pointer to lock */
+ }
+ break;
+ case _DRM_AGP: {
+ struct drm_agp_mem *entry;
+ int valid = 0;
+
+ if (!drm_core_has_AGP(dev)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* In some cases (i810 driver), user space may have already
+ * added the AGP base itself, because dev->agp->base previously
+ * only got set during AGP enable. So, only add the base
+ * address if the map's offset isn't already within the
+ * aperture.
+ */
+ if (map->offset < dev->agp->base ||
+ map->offset > dev->agp->base +
+ dev->agp->agp_info.aper_size * 1024 * 1024 - 1) {
+ map->offset += dev->agp->base;
+ }
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+
+ /* This assumes the DRM is in total control of AGP space.
+ * It's not always the case as AGP can be in the control
+ * of user space (i.e. i810 driver). So this loop will get
+ * skipped and we double check that dev->agp->memory is
+ * actually set as well as being invalid before EPERM'ing
+ */
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if ((map->offset >= entry->bound) &&
+ (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ kfree(map);
+ return -EPERM;
+ }
+ DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n",
+ (unsigned long long)map->offset, map->size);
+
+ break;
+ }
+ case _DRM_GEM:
+ DRM_ERROR("tried to addmap GEM object\n");
+ break;
+ case _DRM_SCATTER_GATHER:
+ if (!dev->sg) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->offset += (unsigned long)dev->sg->virtual;
+ break;
+ case _DRM_CONSISTENT:
+ /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G,
+ * As we're limiting the address to 2^32-1 (or less),
+ * casting it down to 32 bits is no problem, but we
+ * need to point to a 64bit variable first. */
+ dmah = drm_pci_alloc(dev, map->size, map->size);
+ if (!dmah) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->handle = dmah->vaddr;
+ map->offset = (unsigned long)dmah->busaddr;
+ kfree(dmah);
+ break;
+ default:
+ kfree(map);
+ return -EINVAL;
+ }
+
+ list = kzalloc(sizeof(*list), GFP_KERNEL);
+ if (!list) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ return -EINVAL;
+ }
+ list->map = map;
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&list->head, &dev->maplist);
+
+ /* Assign a 32-bit handle */
+ /* We do it here so that dev->struct_mutex protects the increment */
+ user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle :
+ map->offset;
+ ret = drm_map_handle(dev, &list->hash, user_token, 0,
+ (map->type == _DRM_SHM));
+ if (ret) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ kfree(list);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ list->user_token = list->hash.key << PAGE_SHIFT;
+ mutex_unlock(&dev->struct_mutex);
+
+ if (!(map->flags & _DRM_DRIVER))
+ list->master = dev->primary->master;
+ *maplist = list;
+ return 0;
+ }
+
+int drm_addmap(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map ** map_ptr)
+{
+ struct drm_map_list *list;
+ int rc;
+
+ rc = drm_addmap_core(dev, offset, size, type, flags, &list);
+ if (!rc)
+ *map_ptr = list->map;
+ return rc;
+}
+
+EXPORT_SYMBOL(drm_addmap);
+
+/**
+ * Ioctl to specify a range of memory that is available for mapping by a
+ * non-root process.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_map structure.
+ * \return zero on success or a negative value on error.
+ *
+ */
+int drm_addmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *maplist;
+ int err;
+
+ if (!(capable(CAP_SYS_ADMIN) || map->type == _DRM_AGP || map->type == _DRM_SHM))
+ return -EPERM;
+
+ err = drm_addmap_core(dev, map->offset, map->size, map->type,
+ map->flags, &maplist);
+
+ if (err)
+ return err;
+
+ /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */
+ map->handle = (void *)(unsigned long)maplist->user_token;
+ return 0;
+}
+
+/**
+ * Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ *
+ * Searches the map on drm_device::maplist, removes it from the list, see if
+ * its being used, and free any associate resource (such as MTRR's) if it's not
+ * being on use.
+ *
+ * \sa drm_addmap
+ */
+int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map)
+{
+ struct drm_map_list *r_list = NULL, *list_t;
+ drm_dma_handle_t dmah;
+ int found = 0;
+ struct drm_master *master;
+
+ /* Find the list entry for the map and remove it */
+ list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
+ if (r_list->map == map) {
+ master = r_list->master;
+ list_del(&r_list->head);
+ drm_ht_remove_key(&dev->map_hash,
+ r_list->user_token >> PAGE_SHIFT);
+ kfree(r_list);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ iounmap(map->handle);
+ /* FALLTHROUGH */
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr, map->offset, map->size);
+ DRM_DEBUG("mtrr_del=%d\n", retcode);
+ }
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ if (master) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_rmmap_locked);
+
+int drm_rmmap(struct drm_device *dev, struct drm_local_map *map)
+{
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_rmmap_locked(dev, map);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_rmmap);
+
+/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on
+ * the last close of the device, and this is necessary for cleanup when things
+ * exit uncleanly. Therefore, having userland manually remove mappings seems
+ * like a pointless exercise since they're going away anyway.
+ *
+ * One use case might be after addmap is allowed for normal users for SHM and
+ * gets used by drivers that the server doesn't need to care about. This seems
+ * unlikely.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_map structure.
+ * \return zero on success or a negative value on error.
+ */
+int drm_rmmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map &&
+ r_list->user_token == (unsigned long)request->handle &&
+ r_list->map->flags & _DRM_REMOVABLE) {
+ map = r_list->map;
+ break;
+ }
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if (list_empty(&dev->maplist) || !map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ /* Register and framebuffer maps are permanent */
+ if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ ret = drm_rmmap_locked(dev, map);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+/**
+ * Cleanup after an error on one of the addbufs() functions.
+ *
+ * \param dev DRM device.
+ * \param entry buffer entry where the error occurred.
+ *
+ * Frees any pages and buffers associated with the given entry.
+ */
+static void drm_cleanup_buf_error(struct drm_device * dev,
+ struct drm_buf_entry * entry)
+{
+ int i;
+
+ if (entry->seg_count) {
+ for (i = 0; i < entry->seg_count; i++) {
+ if (entry->seglist[i]) {
+ drm_pci_free(dev, entry->seglist[i]);
+ }
+ }
+ kfree(entry->seglist);
+
+ entry->seg_count = 0;
+ }
+
+ if (entry->buf_count) {
+ for (i = 0; i < entry->buf_count; i++) {
+ kfree(entry->buflist[i].dev_private);
+ }
+ kfree(entry->buflist);
+
+ entry->buf_count = 0;
+ }
+}
+
+#if __OS_HAS_AGP
+/**
+ * Add AGP buffers for DMA transfers.
+ *
+ * \param dev struct drm_device to which the buffers are to be added.
+ * \param request pointer to a struct drm_buf_desc describing the request.
+ * \return zero on success or a negative number on failure.
+ *
+ * After some sanity checks creates a drm_buf structure for each buffer and
+ * reallocates the buffer list of the same size order to accommodate the new
+ * buffers.
+ */
+int drm_addbufs_agp(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_agp_mem *agp_entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i, valid;
+ struct drm_buf **temp_buflist;
+
+ if (!dma)
+ return -EINVAL;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = dev->agp->base + request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lx\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ /* Make sure buffers are located in AGP memory that we own */
+ valid = 0;
+ list_for_each_entry(agp_entry, &dev->agp->memory, head) {
+ if ((agp_offset >= agp_entry->bound) &&
+ (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ DRM_DEBUG("zone invalid\n");
+ return -EINVAL;
+ }
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+EXPORT_SYMBOL(drm_addbufs_agp);
+#endif /* __OS_HAS_AGP */
+
+int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int count;
+ int order;
+ int size;
+ int total;
+ int page_order;
+ struct drm_buf_entry *entry;
+ drm_dma_handle_t *dmah;
+ struct drm_buf *buf;
+ int alignment;
+ unsigned long offset;
+ int i;
+ int byte_count;
+ int page_count;
+ unsigned long *temp_pagelist;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ DRM_DEBUG("count=%d, size=%d (%d), order=%d, queue_count=%d\n",
+ request->count, request->size, size, order, dev->queue_count);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->seglist = kzalloc(count * sizeof(*entry->seglist), GFP_KERNEL);
+ if (!entry->seglist) {
+ kfree(entry->buflist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ /* Keep the original pagelist until we know all the allocations
+ * have succeeded
+ */
+ temp_pagelist = kmalloc((dma->page_count + (count << page_order)) *
+ sizeof(*dma->pagelist), GFP_KERNEL);
+ if (!temp_pagelist) {
+ kfree(entry->buflist);
+ kfree(entry->seglist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memcpy(temp_pagelist,
+ dma->pagelist, dma->page_count * sizeof(*dma->pagelist));
+ DRM_DEBUG("pagelist: %d entries\n",
+ dma->page_count + (count << page_order));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+ byte_count = 0;
+ page_count = 0;
+
+ while (entry->buf_count < count) {
+
+ dmah = drm_pci_alloc(dev, PAGE_SIZE << page_order, 0x1000);
+
+ if (!dmah) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ entry->seglist[entry->seg_count++] = dmah;
+ for (i = 0; i < (1 << page_order); i++) {
+ DRM_DEBUG("page %d @ 0x%08lx\n",
+ dma->page_count + page_count,
+ (unsigned long)dmah->vaddr + PAGE_SIZE * i);
+ temp_pagelist[dma->page_count + page_count++]
+ = (unsigned long)dmah->vaddr + PAGE_SIZE * i;
+ }
+ for (offset = 0;
+ offset + size <= total && entry->buf_count < count;
+ offset += alignment, ++entry->buf_count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+ buf->offset = (dma->byte_count + byte_count + offset);
+ buf->address = (void *)(dmah->vaddr + offset);
+ buf->bus_address = dmah->busaddr + offset;
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size,
+ GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n",
+ entry->buf_count, buf->address);
+ }
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ /* No allocations failed, so now we can replace the original pagelist
+ * with the new one.
+ */
+ if (dma->page_count) {
+ kfree(dma->pagelist);
+ }
+ dma->pagelist = temp_pagelist;
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += entry->seg_count << page_order;
+ dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ if (request->flags & _DRM_PCI_BUFFER_RO)
+ dma->flags = _DRM_DMA_USE_PCI_RO;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+
+}
+EXPORT_SYMBOL(drm_addbufs_pci);
+
+static int drm_addbufs_sg(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset
+ + (unsigned long)dev->sg->virtual);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_SG;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+static int drm_addbufs_fb(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_FB_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_FB;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+
+/**
+ * Add buffers for DMA transfers (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_buf_desc request.
+ * \return zero on success or a negative number on failure.
+ *
+ * According with the memory type specified in drm_buf_desc::flags and the
+ * build options, it dispatches the call either to addbufs_agp(),
+ * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent
+ * PCI memory respectively.
+ */
+int drm_addbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_buf_desc *request = data;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+#if __OS_HAS_AGP
+ if (request->flags & _DRM_AGP_BUFFER)
+ ret = drm_addbufs_agp(dev, request);
+ else
+#endif
+ if (request->flags & _DRM_SG_BUFFER)
+ ret = drm_addbufs_sg(dev, request);
+ else if (request->flags & _DRM_FB_BUFFER)
+ ret = drm_addbufs_fb(dev, request);
+ else
+ ret = drm_addbufs_pci(dev, request);
+
+ return ret;
+}
+
+/**
+ * Get information about the buffer mappings.
+ *
+ * This was originally mean for debugging purposes, or by a sophisticated
+ * client library to determine how best to use the available buffers (e.g.,
+ * large buffers can be used for image transfer).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Increments drm_device::buf_use while holding the drm_device::count_lock
+ * lock, preventing of allocating more buffers after this call. Information
+ * about each requested buffer is then copied into user space.
+ */
+int drm_infobufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_info *request = data;
+ int i;
+ int count;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count)
+ ++count;
+ }
+
+ DRM_DEBUG("count = %d\n", count);
+
+ if (request->count >= count) {
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count) {
+ struct drm_buf_desc __user *to =
+ &request->list[count];
+ struct drm_buf_entry *from = &dma->bufs[i];
+ struct drm_freelist *list = &dma->bufs[i].freelist;
+ if (copy_to_user(&to->count,
+ &from->buf_count,
+ sizeof(from->buf_count)) ||
+ copy_to_user(&to->size,
+ &from->buf_size,
+ sizeof(from->buf_size)) ||
+ copy_to_user(&to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark)) ||
+ copy_to_user(&to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d %d %d %d %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].freelist.low_mark,
+ dma->bufs[i].freelist.high_mark);
+ ++count;
+ }
+ }
+ }
+ request->count = count;
+
+ return 0;
+}
+
+/**
+ * Specifies a low and high water mark for buffer allocation
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg a pointer to a drm_buf_desc structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies that the size order is bounded between the admissible orders and
+ * updates the respective drm_device_dma::bufs entry low and high water mark.
+ *
+ * \note This ioctl is deprecated and mostly never used.
+ */
+int drm_markbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_desc *request = data;
+ int order;
+ struct drm_buf_entry *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d, %d, %d\n",
+ request->size, request->low_mark, request->high_mark);
+ order = drm_order(request->size);
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ entry = &dma->bufs[order];
+
+ if (request->low_mark < 0 || request->low_mark > entry->buf_count)
+ return -EINVAL;
+ if (request->high_mark < 0 || request->high_mark > entry->buf_count)
+ return -EINVAL;
+
+ entry->freelist.low_mark = request->low_mark;
+ entry->freelist.high_mark = request->high_mark;
+
+ return 0;
+}
+
+/**
+ * Unreserve the buffers in list, previously reserved using drmDMA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_free structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls free_buffer() for each used buffer.
+ * This function is primarily used for debugging.
+ */
+int drm_freebufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_free *request = data;
+ int i;
+ int idx;
+ struct drm_buf *buf;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d\n", request->count);
+ for (i = 0; i < request->count; i++) {
+ if (copy_from_user(&idx, &request->list[i], sizeof(idx)))
+ return -EFAULT;
+ if (idx < 0 || idx >= dma->buf_count) {
+ DRM_ERROR("Index %d (of %d max)\n",
+ idx, dma->buf_count - 1);
+ return -EINVAL;
+ }
+ buf = dma->buflist[idx];
+ if (buf->file_priv != file_priv) {
+ DRM_ERROR("Process %d freeing buffer not owned\n",
+ task_pid_nr(current));
+ return -EINVAL;
+ }
+ drm_free_buffer(dev, buf);
+ }
+
+ return 0;
+}
+
+/**
+ * Maps all of the DMA buffers into client-virtual space (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information
+ * about each buffer into user space. For PCI buffers, it calls do_mmap() with
+ * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls
+ * drm_mmap_dma().
+ */
+int drm_mapbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ struct drm_buf_map *request = data;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ if (request->count >= dma->buf_count) {
+ if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP))
+ || (drm_core_check_feature(dev, DRIVER_SG)
+ && (dma->flags & _DRM_DMA_USE_SG))
+ || (drm_core_check_feature(dev, DRIVER_FB_DMA)
+ && (dma->flags & _DRM_DMA_USE_FB))) {
+ struct drm_local_map *map = dev->agp_buffer_map;
+ unsigned long token = dev->agp_buffer_token;
+
+ if (!map) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ token);
+ up_write(¤t->mm->mmap_sem);
+ } else {
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0);
+ up_write(¤t->mm->mmap_sem);
+ }
+ if (virtual > -1024UL) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request->virtual = (void __user *)virtual;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ if (copy_to_user(&request->list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request->list[0].idx))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request->list[0].total))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].used,
+ &zero, sizeof(zero))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if (copy_to_user(&request->list[i].address,
+ &address, sizeof(address))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ done:
+ request->count = dma->buf_count;
+ DRM_DEBUG("%d buffers, retcode = %d\n", request->count, retcode);
+
+ return retcode;
+}
+
+/**
+ * Compute size order. Returns the exponent of the smaller power of two which
+ * is greater or equal to given number.
+ *
+ * \param size size.
+ * \return order.
+ *
+ * \todo Can be made faster.
+ */
+int drm_order(unsigned long size)
+{
+ int order;
+ unsigned long tmp;
+
+ for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ;
+
+ if (size & (size - 1))
+ ++order;
+
+ return order;
+}
+EXPORT_SYMBOL(drm_order);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+
+#if defined(CONFIG_X86)
+static void
+drm_clflush_page(struct page *page)
+{
+ uint8_t *page_virtual;
+ unsigned int i;
+
+ if (unlikely(page == NULL))
+ return;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ clflush(page_virtual + i);
+ kunmap_atomic(page_virtual, KM_USER0);
+}
+
+static void drm_cache_flush_clflush(struct page *pages[],
+ unsigned long num_pages)
+{
+ unsigned long i;
+
+ mb();
+ for (i = 0; i < num_pages; i++)
+ drm_clflush_page(*pages++);
+ mb();
+}
+
+static void
+drm_clflush_ipi_handler(void *null)
+{
+ wbinvd();
+}
+#endif
+
+void
+drm_clflush_pages(struct page *pages[], unsigned long num_pages)
+{
+
+#if defined(CONFIG_X86)
+ if (cpu_has_clflush) {
+ drm_cache_flush_clflush(pages, num_pages);
+ return;
+ }
+
+ if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
+ printk(KERN_ERR "Timed out waiting for cache flush.\n");
+
+#elif defined(__powerpc__)
+ unsigned long i;
+ for (i = 0; i < num_pages; i++) {
+ struct page *page = pages[i];
+ void *page_virtual;
+
+ if (unlikely(page == NULL))
+ continue;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ flush_dcache_range((unsigned long)page_virtual,
+ (unsigned long)page_virtual + PAGE_SIZE);
+ kunmap_atomic(page_virtual, KM_USER0);
+ }
+#else
+ printk(KERN_ERR "Architecture has no drm_cache.c support\n");
+ WARN_ON_ONCE(1);
+#endif
+}
+EXPORT_SYMBOL(drm_clflush_pages);
--- /dev/null
+/**
+ * \file drm_context.c
+ * IOCTLs for generic contexts
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Nov 24 18:31:37 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * ChangeLog:
+ * 2001-11-16 Torsten Duwe <duwe@caldera.de>
+ * added context constructor/destructor hooks,
+ * needed by SiS driver's memory management.
+ */
+
+#include "drmP.h"
+
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
+/**
+ * Free a handle from the context bitmap.
+ *
+ * \param dev DRM device.
+ * \param ctx_handle context handle.
+ *
+ * Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry
+ * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
+ * lock.
+ */
+void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove(&dev->ctx_idr, ctx_handle);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Context bitmap allocation.
+ *
+ * \param dev DRM device.
+ * \return (non-negative) context handle on success or a negative number on failure.
+ *
+ * Allocate a new idr from drm_device::ctx_idr while holding the
+ * drm_device::struct_mutex lock.
+ */
+static int drm_ctxbitmap_next(struct drm_device * dev)
+{
+ int new_id;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->ctx_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&dev->ctx_idr, NULL,
+ DRM_RESERVED_CONTEXTS, &new_id);
+ if (ret == -EAGAIN) {
+ mutex_unlock(&dev->struct_mutex);
+ goto again;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return new_id;
+}
+
+/**
+ * Context bitmap initialization.
+ *
+ * \param dev DRM device.
+ *
+ * Initialise the drm_device::ctx_idr
+ */
+int drm_ctxbitmap_init(struct drm_device * dev)
+{
+ idr_init(&dev->ctx_idr);
+ return 0;
+}
+
+/**
+ * Context bitmap cleanup.
+ *
+ * \param dev DRM device.
+ *
+ * Free all idr members using drm_ctx_sarea_free helper function
+ * while holding the drm_device::struct_mutex lock.
+ */
+void drm_ctxbitmap_cleanup(struct drm_device * dev)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove_all(&dev->ctx_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name Per Context SAREA Support */
+/*@{*/
+
+/**
+ * Get per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Gets the map from drm_device::ctx_idr with the handle specified and
+ * returns its handle.
+ */
+int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map;
+ struct drm_map_list *_entry;
+
+ mutex_lock(&dev->struct_mutex);
+
+ map = idr_find(&dev->ctx_idr, request->ctx_id);
+ if (!map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->handle = NULL;
+ list_for_each_entry(_entry, &dev->maplist, head) {
+ if (_entry->map == map) {
+ request->handle =
+ (void *)(unsigned long)_entry->user_token;
+ break;
+ }
+ }
+ if (request->handle == NULL)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * Set per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the mapping specified in \p arg and update the entry in
+ * drm_device::ctx_idr with it.
+ */
+int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list = NULL;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map
+ && r_list->user_token == (unsigned long) request->handle)
+ goto found;
+ }
+ bad:
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+
+ found:
+ map = r_list->map;
+ if (!map)
+ goto bad;
+
+ if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id)))
+ goto bad;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name The actual DRM context handling routines */
+/*@{*/
+
+/**
+ * Switch context.
+ *
+ * \param dev DRM device.
+ * \param old old context handle.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to set drm_device::context_flag.
+ */
+static int drm_context_switch(struct drm_device * dev, int old, int new)
+{
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ return 0;
+}
+
+/**
+ * Complete context switch.
+ *
+ * \param dev DRM device.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Updates drm_device::last_context and drm_device::last_switch. Verifies the
+ * hardware lock is held, clears the drm_device::context_flag and wakes up
+ * drm_device::context_wait.
+ */
+static int drm_context_switch_complete(struct drm_device *dev,
+ struct drm_file *file_priv, int new)
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+ clear_bit(0, &dev->context_flag);
+ wake_up(&dev->context_wait);
+
+ return 0;
+}
+
+/**
+ * Reserve contexts.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_res structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_res *res = data;
+ struct drm_ctx ctx;
+ int i;
+
+ if (res->count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx)))
+ return -EFAULT;
+ }
+ }
+ res->count = DRM_RESERVED_CONTEXTS;
+
+ return 0;
+}
+
+/**
+ * Add context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Get a new handle for the context and copy to userspace.
+ */
+int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_list *ctx_entry;
+ struct drm_ctx *ctx = data;
+
+ ctx->handle = drm_ctxbitmap_next(dev);
+ if (ctx->handle == DRM_KERNEL_CONTEXT) {
+ /* Skip kernel's context and get a new one. */
+ ctx->handle = drm_ctxbitmap_next(dev);
+ }
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == -1) {
+ DRM_DEBUG("Not enough free contexts.\n");
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL);
+ if (!ctx_entry) {
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&ctx_entry->head);
+ ctx_entry->handle = ctx->handle;
+ ctx_entry->tag = file_priv;
+
+ mutex_lock(&dev->ctxlist_mutex);
+ list_add(&ctx_entry->head, &dev->ctxlist);
+ ++dev->ctx_count;
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ /* This does nothing */
+ return 0;
+}
+
+/**
+ * Get context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx->flags = 0;
+
+ return 0;
+}
+
+/**
+ * Switch context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch().
+ */
+int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ return drm_context_switch(dev, dev->last_context, ctx->handle);
+}
+
+/**
+ * New context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch_complete().
+ */
+int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ drm_context_switch_complete(dev, file_priv, ctx->handle);
+
+ return 0;
+}
+
+/**
+ * Remove context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * If not the special kernel context, calls ctxbitmap_free() to free the specified context.
+ */
+int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev, ctx->handle);
+ drm_ctxbitmap_free(dev, ctx->handle);
+ }
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->handle == ctx->handle) {
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+/*@}*/
--- /dev/null
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2008 Red Hat Inc.
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/list.h>
+#include <linux/slab.h>
+#include "drm.h"
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_edid.h"
+
+struct drm_prop_enum_list {
+ int type;
+ char *name;
+};
+
+/* Avoid boilerplate. I'm tired of typing. */
+#define DRM_ENUM_NAME_FN(fnname, list) \
+ char *fnname(int val) \
+ { \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(list); i++) { \
+ if (list[i].type == val) \
+ return list[i].name; \
+ } \
+ return "(unknown)"; \
+ }
+
+/*
+ * Global properties
+ */
+static struct drm_prop_enum_list drm_dpms_enum_list[] =
+{ { DRM_MODE_DPMS_ON, "On" },
+ { DRM_MODE_DPMS_STANDBY, "Standby" },
+ { DRM_MODE_DPMS_SUSPEND, "Suspend" },
+ { DRM_MODE_DPMS_OFF, "Off" }
+};
+
+DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
+
+/*
+ * Optional properties
+ */
+static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
+{
+ { DRM_MODE_SCALE_NONE, "None" },
+ { DRM_MODE_SCALE_FULLSCREEN, "Full" },
+ { DRM_MODE_SCALE_CENTER, "Center" },
+ { DRM_MODE_SCALE_ASPECT, "Full aspect" },
+};
+
+static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
+{
+ { DRM_MODE_DITHERING_OFF, "Off" },
+ { DRM_MODE_DITHERING_ON, "On" },
+ { DRM_MODE_DITHERING_AUTO, "Automatic" },
+};
+
+/*
+ * Non-global properties, but "required" for certain connectors.
+ */
+static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
+
+static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
+ drm_dvi_i_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_tv_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
+
+static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
+ drm_tv_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
+ { DRM_MODE_DIRTY_OFF, "Off" },
+ { DRM_MODE_DIRTY_ON, "On" },
+ { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
+};
+
+DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
+ drm_dirty_info_enum_list)
+
+struct drm_conn_prop_enum_list {
+ int type;
+ char *name;
+ int count;
+};
+
+/*
+ * Connector and encoder types.
+ */
+static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
+{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
+ { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
+ { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
+ { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
+ { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
+ { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
+ { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
+ { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
+ { DRM_MODE_CONNECTOR_Component, "Component", 0 },
+ { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
+ { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
+ { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
+ { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
+ { DRM_MODE_CONNECTOR_TV, "TV", 0 },
+ { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
+};
+
+static struct drm_prop_enum_list drm_encoder_enum_list[] =
+{ { DRM_MODE_ENCODER_NONE, "None" },
+ { DRM_MODE_ENCODER_DAC, "DAC" },
+ { DRM_MODE_ENCODER_TMDS, "TMDS" },
+ { DRM_MODE_ENCODER_LVDS, "LVDS" },
+ { DRM_MODE_ENCODER_TVDAC, "TV" },
+};
+
+char *drm_get_encoder_name(struct drm_encoder *encoder)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_encoder_enum_list[encoder->encoder_type].name,
+ encoder->base.id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_encoder_name);
+
+char *drm_get_connector_name(struct drm_connector *connector)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_connector_enum_list[connector->connector_type].name,
+ connector->connector_type_id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_connector_name);
+
+char *drm_get_connector_status_name(enum drm_connector_status status)
+{
+ if (status == connector_status_connected)
+ return "connected";
+ else if (status == connector_status_disconnected)
+ return "disconnected";
+ else
+ return "unknown";
+}
+
+/**
+ * drm_mode_object_get - allocate a new identifier
+ * @dev: DRM device
+ * @ptr: object pointer, used to generate unique ID
+ * @type: object type
+ *
+ * LOCKING:
+ *
+ * Create a unique identifier based on @ptr in @dev's identifier space. Used
+ * for tracking modes, CRTCs and connectors.
+ *
+ * RETURNS:
+ * New unique (relative to other objects in @dev) integer identifier for the
+ * object.
+ */
+static int drm_mode_object_get(struct drm_device *dev,
+ struct drm_mode_object *obj, uint32_t obj_type)
+{
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Ran out memory getting a mode number\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+ if (ret == -EAGAIN)
+ goto again;
+
+ obj->id = new_id;
+ obj->type = obj_type;
+ return 0;
+}
+
+/**
+ * drm_mode_object_put - free an identifer
+ * @dev: DRM device
+ * @id: ID to free
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Free @id from @dev's unique identifier pool.
+ */
+static void drm_mode_object_put(struct drm_device *dev,
+ struct drm_mode_object *object)
+{
+ mutex_lock(&dev->mode_config.idr_mutex);
+ idr_remove(&dev->mode_config.crtc_idr, object->id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+}
+
+struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
+ uint32_t id, uint32_t type)
+{
+ struct drm_mode_object *obj = NULL;
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ obj = idr_find(&dev->mode_config.crtc_idr, id);
+ if (!obj || (obj->type != type) || (obj->id != id))
+ obj = NULL;
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_mode_object_find);
+
+/**
+ * drm_framebuffer_init - initialize a framebuffer
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Allocates an ID for the framebuffer's parent mode object, sets its mode
+ * functions & device file and adds it to the master fd list.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ int ret;
+
+ ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
+ if (ret) {
+ return ret;
+ }
+
+ fb->dev = dev;
+ fb->funcs = funcs;
+ dev->mode_config.num_fb++;
+ list_add(&fb->head, &dev->mode_config.fb_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_framebuffer_init);
+
+/**
+ * drm_framebuffer_cleanup - remove a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
+ * it, setting it to NULL.
+ */
+void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ struct drm_crtc *crtc;
+ struct drm_mode_set set;
+ int ret;
+
+ /* remove from any CRTC */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->fb == fb) {
+ /* should turn off the crtc */
+ memset(&set, 0, sizeof(struct drm_mode_set));
+ set.crtc = crtc;
+ set.fb = NULL;
+ ret = crtc->funcs->set_config(&set);
+ if (ret)
+ DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ }
+ }
+
+ drm_mode_object_put(dev, &fb->base);
+ list_del(&fb->head);
+ dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_crtc_init - Initialise a new CRTC object
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @funcs: callbacks for the new CRTC
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Inits a new object created as base part of an driver crtc object.
+ */
+void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+ const struct drm_crtc_funcs *funcs)
+{
+ crtc->dev = dev;
+ crtc->funcs = funcs;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
+
+ list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
+ dev->mode_config.num_crtc++;
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_crtc_init);
+
+/**
+ * drm_crtc_cleanup - Cleans up the core crtc usage.
+ * @crtc: CRTC to cleanup
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Cleanup @crtc. Removes from drm modesetting space
+ * does NOT free object, caller does that.
+ */
+void drm_crtc_cleanup(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+
+ if (crtc->gamma_store) {
+ kfree(crtc->gamma_store);
+ crtc->gamma_store = NULL;
+ }
+
+ drm_mode_object_put(dev, &crtc->base);
+ list_del(&crtc->head);
+ dev->mode_config.num_crtc--;
+}
+EXPORT_SYMBOL(drm_crtc_cleanup);
+
+/**
+ * drm_mode_probed_add - add a mode to a connector's probed mode list
+ * @connector: connector the new mode
+ * @mode: mode data
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Add @mode to @connector's mode list for later use.
+ */
+void drm_mode_probed_add(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_add(&mode->head, &connector->probed_modes);
+}
+EXPORT_SYMBOL(drm_mode_probed_add);
+
+/**
+ * drm_mode_remove - remove and free a mode
+ * @connector: connector list to modify
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Remove @mode from @connector's mode list, then free it.
+ */
+void drm_mode_remove(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_del(&mode->head);
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_remove);
+
+/**
+ * drm_connector_init - Init a preallocated connector
+ * @dev: DRM device
+ * @connector: the connector to init
+ * @funcs: callbacks for this connector
+ * @name: user visible name of the connector
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Initialises a preallocated connector. Connectors should be
+ * subclassed as part of driver connector objects.
+ */
+void drm_connector_init(struct drm_device *dev,
+ struct drm_connector *connector,
+ const struct drm_connector_funcs *funcs,
+ int connector_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ connector->dev = dev;
+ connector->funcs = funcs;
+ drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
+ connector->connector_type = connector_type;
+ connector->connector_type_id =
+ ++drm_connector_enum_list[connector_type].count; /* TODO */
+ INIT_LIST_HEAD(&connector->user_modes);
+ INIT_LIST_HEAD(&connector->probed_modes);
+ INIT_LIST_HEAD(&connector->modes);
+ connector->edid_blob_ptr = NULL;
+
+ list_add_tail(&connector->head, &dev->mode_config.connector_list);
+ dev->mode_config.num_connector++;
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.edid_property, 0);
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.dpms_property, 0);
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_init);
+
+/**
+ * drm_connector_cleanup - cleans up an initialised connector
+ * @connector: connector to cleanup
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Cleans up the connector but doesn't free the object.
+ */
+void drm_connector_cleanup(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->user_modes, head)
+ drm_mode_remove(connector, mode);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &connector->base);
+ list_del(&connector->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_cleanup);
+
+void drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ encoder->dev = dev;
+
+ drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
+ encoder->encoder_type = encoder_type;
+ encoder->funcs = funcs;
+
+ list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
+ dev->mode_config.num_encoder++;
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_init);
+
+void drm_encoder_cleanup(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &encoder->base);
+ list_del(&encoder->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_cleanup);
+
+/**
+ * drm_mode_create - create a new display mode
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Create a new drm_display_mode, give it an ID, and return it.
+ *
+ * RETURNS:
+ * Pointer to new mode on success, NULL on error.
+ */
+struct drm_display_mode *drm_mode_create(struct drm_device *dev)
+{
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_create);
+
+/**
+ * drm_mode_destroy - remove a mode
+ * @dev: DRM device
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free @mode's unique identifier, then free it.
+ */
+void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ drm_mode_object_put(dev, &mode->base);
+
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_destroy);
+
+static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
+{
+ struct drm_property *edid;
+ struct drm_property *dpms;
+ int i;
+
+ /*
+ * Standard properties (apply to all connectors)
+ */
+ edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "EDID", 0);
+ dev->mode_config.edid_property = edid;
+
+ dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
+ drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
+ drm_dpms_enum_list[i].name);
+ dev->mode_config.dpms_property = dpms;
+
+ return 0;
+}
+
+/**
+ * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
+ * @dev: DRM device
+ *
+ * Called by a driver the first time a DVI-I connector is made.
+ */
+int drm_mode_create_dvi_i_properties(struct drm_device *dev)
+{
+ struct drm_property *dvi_i_selector;
+ struct drm_property *dvi_i_subconnector;
+ int i;
+
+ if (dev->mode_config.dvi_i_select_subconnector_property)
+ return 0;
+
+ dvi_i_selector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_dvi_i_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
+ drm_property_add_enum(dvi_i_selector, i,
+ drm_dvi_i_select_enum_list[i].type,
+ drm_dvi_i_select_enum_list[i].name);
+ dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
+
+ dvi_i_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "subconnector",
+ ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
+ drm_property_add_enum(dvi_i_subconnector, i,
+ drm_dvi_i_subconnector_enum_list[i].type,
+ drm_dvi_i_subconnector_enum_list[i].name);
+ dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
+
+/**
+ * drm_create_tv_properties - create TV specific connector properties
+ * @dev: DRM device
+ * @num_modes: number of different TV formats (modes) supported
+ * @modes: array of pointers to strings containing name of each format
+ *
+ * Called by a driver's TV initialization routine, this function creates
+ * the TV specific connector properties for a given device. Caller is
+ * responsible for allocating a list of format names and passing them to
+ * this routine.
+ */
+int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
+ char *modes[])
+{
+ struct drm_property *tv_selector;
+ struct drm_property *tv_subconnector;
+ int i;
+
+ if (dev->mode_config.tv_select_subconnector_property)
+ return 0;
+
+ /*
+ * Basic connector properties
+ */
+ tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_tv_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
+ drm_property_add_enum(tv_selector, i,
+ drm_tv_select_enum_list[i].type,
+ drm_tv_select_enum_list[i].name);
+ dev->mode_config.tv_select_subconnector_property = tv_selector;
+
+ tv_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE, "subconnector",
+ ARRAY_SIZE(drm_tv_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
+ drm_property_add_enum(tv_subconnector, i,
+ drm_tv_subconnector_enum_list[i].type,
+ drm_tv_subconnector_enum_list[i].name);
+ dev->mode_config.tv_subconnector_property = tv_subconnector;
+
+ /*
+ * Other, TV specific properties: margins & TV modes.
+ */
+ dev->mode_config.tv_left_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "left margin", 2);
+ dev->mode_config.tv_left_margin_property->values[0] = 0;
+ dev->mode_config.tv_left_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_right_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "right margin", 2);
+ dev->mode_config.tv_right_margin_property->values[0] = 0;
+ dev->mode_config.tv_right_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_top_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "top margin", 2);
+ dev->mode_config.tv_top_margin_property->values[0] = 0;
+ dev->mode_config.tv_top_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_bottom_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "bottom margin", 2);
+ dev->mode_config.tv_bottom_margin_property->values[0] = 0;
+ dev->mode_config.tv_bottom_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ for (i = 0; i < num_modes; i++)
+ drm_property_add_enum(dev->mode_config.tv_mode_property, i,
+ i, modes[i]);
+
+ dev->mode_config.tv_brightness_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "brightness", 2);
+ dev->mode_config.tv_brightness_property->values[0] = 0;
+ dev->mode_config.tv_brightness_property->values[1] = 100;
+
+ dev->mode_config.tv_contrast_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "contrast", 2);
+ dev->mode_config.tv_contrast_property->values[0] = 0;
+ dev->mode_config.tv_contrast_property->values[1] = 100;
+
+ dev->mode_config.tv_flicker_reduction_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "flicker reduction", 2);
+ dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
+ dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
+
+ dev->mode_config.tv_overscan_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "overscan", 2);
+ dev->mode_config.tv_overscan_property->values[0] = 0;
+ dev->mode_config.tv_overscan_property->values[1] = 100;
+
+ dev->mode_config.tv_saturation_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "saturation", 2);
+ dev->mode_config.tv_saturation_property->values[0] = 0;
+ dev->mode_config.tv_saturation_property->values[1] = 100;
+
+ dev->mode_config.tv_hue_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "hue", 2);
+ dev->mode_config.tv_hue_property->values[0] = 0;
+ dev->mode_config.tv_hue_property->values[1] = 100;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_tv_properties);
+
+/**
+ * drm_mode_create_scaling_mode_property - create scaling mode property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_scaling_mode_property(struct drm_device *dev)
+{
+ struct drm_property *scaling_mode;
+ int i;
+
+ if (dev->mode_config.scaling_mode_property)
+ return 0;
+
+ scaling_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
+ ARRAY_SIZE(drm_scaling_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
+ drm_property_add_enum(scaling_mode, i,
+ drm_scaling_mode_enum_list[i].type,
+ drm_scaling_mode_enum_list[i].name);
+
+ dev->mode_config.scaling_mode_property = scaling_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
+
+/**
+ * drm_mode_create_dithering_property - create dithering property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dithering_property(struct drm_device *dev)
+{
+ struct drm_property *dithering_mode;
+ int i;
+
+ if (dev->mode_config.dithering_mode_property)
+ return 0;
+
+ dithering_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
+ ARRAY_SIZE(drm_dithering_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
+ drm_property_add_enum(dithering_mode, i,
+ drm_dithering_mode_enum_list[i].type,
+ drm_dithering_mode_enum_list[i].name);
+ dev->mode_config.dithering_mode_property = dithering_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dithering_property);
+
+/**
+ * drm_mode_create_dirty_property - create dirty property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dirty_info_property(struct drm_device *dev)
+{
+ struct drm_property *dirty_info;
+ int i;
+
+ if (dev->mode_config.dirty_info_property)
+ return 0;
+
+ dirty_info =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "dirty",
+ ARRAY_SIZE(drm_dirty_info_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
+ drm_property_add_enum(dirty_info, i,
+ drm_dirty_info_enum_list[i].type,
+ drm_dirty_info_enum_list[i].name);
+ dev->mode_config.dirty_info_property = dirty_info;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
+
+/**
+ * drm_mode_config_init - initialize DRM mode_configuration structure
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * None, should happen single threaded at init time.
+ *
+ * Initialize @dev's mode_config structure, used for tracking the graphics
+ * configuration of @dev.
+ */
+void drm_mode_config_init(struct drm_device *dev)
+{
+ mutex_init(&dev->mode_config.mutex);
+ mutex_init(&dev->mode_config.idr_mutex);
+ INIT_LIST_HEAD(&dev->mode_config.fb_list);
+ INIT_LIST_HEAD(&dev->mode_config.crtc_list);
+ INIT_LIST_HEAD(&dev->mode_config.connector_list);
+ INIT_LIST_HEAD(&dev->mode_config.encoder_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+ idr_init(&dev->mode_config.crtc_idr);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_create_standard_connector_properties(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ /* Just to be sure */
+ dev->mode_config.num_fb = 0;
+ dev->mode_config.num_connector = 0;
+ dev->mode_config.num_crtc = 0;
+ dev->mode_config.num_encoder = 0;
+}
+EXPORT_SYMBOL(drm_mode_config_init);
+
+int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
+{
+ uint32_t total_objects = 0;
+
+ total_objects += dev->mode_config.num_crtc;
+ total_objects += dev->mode_config.num_connector;
+ total_objects += dev->mode_config.num_encoder;
+
+ if (total_objects == 0)
+ return -EINVAL;
+
+ group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
+ if (!group->id_list)
+ return -ENOMEM;
+
+ group->num_crtcs = 0;
+ group->num_connectors = 0;
+ group->num_encoders = 0;
+ return 0;
+}
+
+int drm_mode_group_init_legacy_group(struct drm_device *dev,
+ struct drm_mode_group *group)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ if ((ret = drm_mode_group_init(dev, group)))
+ return ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ group->id_list[group->num_crtcs++] = crtc->base.id;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders++] =
+ encoder->base.id;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders +
+ group->num_connectors++] = connector->base.id;
+
+ return 0;
+}
+
+/**
+ * drm_mode_config_cleanup - free up DRM mode_config info
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free up all the connectors and CRTCs associated with this DRM device, then
+ * free up the framebuffers and associated buffer objects.
+ *
+ * FIXME: cleanup any dangling user buffer objects too
+ */
+void drm_mode_config_cleanup(struct drm_device *dev)
+{
+ struct drm_connector *connector, *ot;
+ struct drm_crtc *crtc, *ct;
+ struct drm_encoder *encoder, *enct;
+ struct drm_framebuffer *fb, *fbt;
+ struct drm_property *property, *pt;
+
+ list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
+ head) {
+ encoder->funcs->destroy(encoder);
+ }
+
+ list_for_each_entry_safe(connector, ot,
+ &dev->mode_config.connector_list, head) {
+ connector->funcs->destroy(connector);
+ }
+
+ list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
+ head) {
+ drm_property_destroy(dev, property);
+ }
+
+ list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+ fb->funcs->destroy(fb);
+ }
+
+ list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+ crtc->funcs->destroy(crtc);
+ }
+
+}
+EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+/**
+ * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
+ * @out: drm_mode_modeinfo struct to return to the user
+ * @in: drm_display_mode to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
+ * the user.
+ */
+void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
+ struct drm_display_mode *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
+ * @out: drm_display_mode to return to the user
+ * @in: drm_mode_modeinfo to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
+ * the caller.
+ */
+void drm_crtc_convert_umode(struct drm_display_mode *out,
+ struct drm_mode_modeinfo *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_mode_getresources - get graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getresources(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_card_res *card_res = data;
+ struct list_head *lh;
+ struct drm_framebuffer *fb;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ int ret = 0;
+ int connector_count = 0;
+ int crtc_count = 0;
+ int fb_count = 0;
+ int encoder_count = 0;
+ int copied = 0, i;
+ uint32_t __user *fb_id;
+ uint32_t __user *crtc_id;
+ uint32_t __user *connector_id;
+ uint32_t __user *encoder_id;
+ struct drm_mode_group *mode_group;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /*
+ * For the non-control nodes we need to limit the list of resources
+ * by IDs in the group list for this node
+ */
+ list_for_each(lh, &file_priv->fbs)
+ fb_count++;
+
+ mode_group = &file_priv->master->minor->mode_group;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+
+ list_for_each(lh, &dev->mode_config.crtc_list)
+ crtc_count++;
+
+ list_for_each(lh, &dev->mode_config.connector_list)
+ connector_count++;
+
+ list_for_each(lh, &dev->mode_config.encoder_list)
+ encoder_count++;
+ } else {
+
+ crtc_count = mode_group->num_crtcs;
+ connector_count = mode_group->num_connectors;
+ encoder_count = mode_group->num_encoders;
+ }
+
+ card_res->max_height = dev->mode_config.max_height;
+ card_res->min_height = dev->mode_config.min_height;
+ card_res->max_width = dev->mode_config.max_width;
+ card_res->min_width = dev->mode_config.min_width;
+
+ /* handle this in 4 parts */
+ /* FBs */
+ if (card_res->count_fbs >= fb_count) {
+ copied = 0;
+ fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+ list_for_each_entry(fb, &file_priv->fbs, head) {
+ if (put_user(fb->base.id, fb_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_fbs = fb_count;
+
+ /* CRTCs */
+ if (card_res->count_crtcs >= crtc_count) {
+ copied = 0;
+ crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+ head) {
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+ if (put_user(crtc->base.id, crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = 0; i < mode_group->num_crtcs; i++) {
+ if (put_user(mode_group->id_list[i],
+ crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_crtcs = crtc_count;
+
+ /* Encoders */
+ if (card_res->count_encoders >= encoder_count) {
+ copied = 0;
+ encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(encoder,
+ &dev->mode_config.encoder_list,
+ head) {
+ DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
+ drm_get_encoder_name(encoder));
+ if (put_user(encoder->base.id, encoder_id +
+ copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
+ if (put_user(mode_group->id_list[i],
+ encoder_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+
+ }
+ }
+ card_res->count_encoders = encoder_count;
+
+ /* Connectors */
+ if (card_res->count_connectors >= connector_count) {
+ copied = 0;
+ connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list,
+ head) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id,
+ drm_get_connector_name(connector));
+ if (put_user(connector->base.id,
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ int start = mode_group->num_crtcs +
+ mode_group->num_encoders;
+ for (i = start; i < start + mode_group->num_connectors; i++) {
+ if (put_user(mode_group->id_list[i],
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_connectors = connector_count;
+
+ DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
+ card_res->count_connectors, card_res->count_encoders);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getcrtc - get CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a CRTC configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getcrtc(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc *crtc_resp = data;
+ struct drm_crtc *crtc;
+ struct drm_mode_object *obj;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ crtc_resp->x = crtc->x;
+ crtc_resp->y = crtc->y;
+ crtc_resp->gamma_size = crtc->gamma_size;
+ if (crtc->fb)
+ crtc_resp->fb_id = crtc->fb->base.id;
+ else
+ crtc_resp->fb_id = 0;
+
+ if (crtc->enabled) {
+
+ drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ crtc_resp->mode_valid = 1;
+
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getconnector - get connector configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a connector configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getconnector(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_connector *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ int mode_count = 0;
+ int props_count = 0;
+ int encoders_count = 0;
+ int ret = 0;
+ int copied = 0;
+ int i;
+ struct drm_mode_modeinfo u_mode;
+ struct drm_mode_modeinfo __user *mode_ptr;
+ uint32_t __user *prop_ptr;
+ uint64_t __user *prop_values;
+ uint32_t __user *encoder_ptr;
+
+ memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ props_count++;
+ }
+ }
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ encoders_count++;
+ }
+ }
+
+ if (out_resp->count_modes == 0) {
+ connector->funcs->fill_modes(connector,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ }
+
+ /* delayed so we get modes regardless of pre-fill_modes state */
+ list_for_each_entry(mode, &connector->modes, head)
+ mode_count++;
+
+ out_resp->connector_id = connector->base.id;
+ out_resp->connector_type = connector->connector_type;
+ out_resp->connector_type_id = connector->connector_type_id;
+ out_resp->mm_width = connector->display_info.width_mm;
+ out_resp->mm_height = connector->display_info.height_mm;
+ out_resp->subpixel = connector->display_info.subpixel_order;
+ out_resp->connection = connector->status;
+ if (connector->encoder)
+ out_resp->encoder_id = connector->encoder->base.id;
+ else
+ out_resp->encoder_id = 0;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if ((out_resp->count_modes >= mode_count) && mode_count) {
+ copied = 0;
+ mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
+ list_for_each_entry(mode, &connector->modes, head) {
+ drm_crtc_convert_to_umode(&u_mode, mode);
+ if (copy_to_user(mode_ptr + copied,
+ &u_mode, sizeof(u_mode))) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_modes = mode_count;
+
+ if ((out_resp->count_props >= props_count) && props_count) {
+ copied = 0;
+ prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
+ prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ if (put_user(connector->property_ids[i],
+ prop_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (put_user(connector->property_values[i],
+ prop_values + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_props = props_count;
+
+ if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
+ copied = 0;
+ encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ if (put_user(connector->encoder_ids[i],
+ encoder_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_encoders = encoders_count;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_getencoder(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_encoder *enc_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, enc_resp->encoder_id,
+ DRM_MODE_OBJECT_ENCODER);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ encoder = obj_to_encoder(obj);
+
+ if (encoder->crtc)
+ enc_resp->crtc_id = encoder->crtc->base.id;
+ else
+ enc_resp->crtc_id = 0;
+ enc_resp->encoder_type = encoder->encoder_type;
+ enc_resp->encoder_id = encoder->base.id;
+ enc_resp->possible_crtcs = encoder->possible_crtcs;
+ enc_resp->possible_clones = encoder->possible_clones;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_setcrtc - set CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Build a new CRTC configuration based on user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_setcrtc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_mode_crtc *crtc_req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc, *crtcfb;
+ struct drm_connector **connector_set = NULL, *connector;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct drm_mode_set set;
+ uint32_t __user *set_connectors_ptr;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+
+ if (crtc_req->mode_valid) {
+ /* If we have a mode we need a framebuffer. */
+ /* If we pass -1, set the mode with the currently bound fb */
+ if (crtc_req->fb_id == -1) {
+ list_for_each_entry(crtcfb,
+ &dev->mode_config.crtc_list, head) {
+ if (crtcfb == crtc) {
+ DRM_DEBUG_KMS("Using current fb for "
+ "setmode\n");
+ fb = crtc->fb;
+ }
+ }
+ } else {
+ obj = drm_mode_object_find(dev, crtc_req->fb_id,
+ DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown FB ID%d\n",
+ crtc_req->fb_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+ }
+
+ mode = drm_mode_create(dev);
+ drm_crtc_convert_umode(mode, &crtc_req->mode);
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ }
+
+ if (crtc_req->count_connectors == 0 && mode) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
+ DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
+ crtc_req->count_connectors);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0) {
+ u32 out_id;
+
+ /* Avoid unbounded kernel memory allocation */
+ if (crtc_req->count_connectors > config->num_connector) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ connector_set = kmalloc(crtc_req->count_connectors *
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
+ if (get_user(out_id, &set_connectors_ptr[i])) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ DRM_DEBUG_KMS("Connector id %d unknown\n",
+ out_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id,
+ drm_get_connector_name(connector));
+
+ connector_set[i] = connector;
+ }
+ }
+
+ set.crtc = crtc;
+ set.x = crtc_req->x;
+ set.y = crtc_req->y;
+ set.mode = mode;
+ set.connectors = connector_set;
+ set.num_connectors = crtc_req->count_connectors;
+ set.fb = fb;
+ ret = crtc->funcs->set_config(&set);
+
+out:
+ kfree(connector_set);
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_cursor_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_cursor *req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ int ret = 0;
+
+ if (!req->flags) {
+ DRM_ERROR("no operation set\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (req->flags & DRM_MODE_CURSOR_BO) {
+ if (!crtc->funcs->cursor_set) {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -ENXIO;
+ goto out;
+ }
+ /* Turns off the cursor if handle is 0 */
+ ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
+ req->width, req->height);
+ }
+
+ if (req->flags & DRM_MODE_CURSOR_MOVE) {
+ if (crtc->funcs->cursor_move) {
+ ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
+ } else {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_addfb - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ if ((config->min_width > r->width) || (r->width > config->max_width)) {
+ DRM_ERROR("mode new framebuffer width not within limits\n");
+ return -EINVAL;
+ }
+ if ((config->min_height > r->height) || (r->height > config->max_height)) {
+ DRM_ERROR("mode new framebuffer height not within limits\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /* TODO check buffer is sufficently large */
+ /* TODO setup destructor callback */
+
+ fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
+ if (IS_ERR(fb)) {
+ DRM_ERROR("could not create framebuffer\n");
+ ret = PTR_ERR(fb);
+ goto out;
+ }
+
+ r->fb_id = fb->base.id;
+ list_add(&fb->filp_head, &file_priv->fbs);
+ DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_rmfb - remove an FB from the configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Remove the FB specified by the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_rmfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_framebuffer *fbl = NULL;
+ uint32_t *id = data;
+ int ret = 0;
+ int found = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
+ /* TODO check that we realy get a framebuffer back. */
+ if (!obj) {
+ DRM_ERROR("mode invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ list_for_each_entry(fbl, &file_priv->fbs, filp_head)
+ if (fb == fbl)
+ found = 1;
+
+ if (!found) {
+ DRM_ERROR("tried to remove a fb that we didn't own\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* TODO release all crtc connected to the framebuffer */
+ /* TODO unhock the destructor from the buffer object */
+
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getfb - get FB info
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Lookup the FB given its ID and return info about it.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ r->height = fb->height;
+ r->width = fb->width;
+ r->depth = fb->depth;
+ r->bpp = fb->bits_per_pixel;
+ r->pitch = fb->pitch;
+ fb->funcs->create_handle(fb, file_priv, &r->handle);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_clip_rect __user *clips_ptr;
+ struct drm_clip_rect *clips = NULL;
+ struct drm_mode_fb_dirty_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ unsigned flags;
+ int num_clips;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out_err1;
+ }
+ fb = obj_to_fb(obj);
+
+ num_clips = r->num_clips;
+ clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
+
+ if (!num_clips != !clips_ptr) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
+
+ /* If userspace annotates copy, clips must come in pairs */
+ if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ if (num_clips && clips_ptr) {
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (!clips) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = copy_from_user(clips, clips_ptr,
+ num_clips * sizeof(*clips));
+ if (ret) {
+ ret = -EFAULT;
+ goto out_err2;
+ }
+ }
+
+ if (fb->funcs->dirty) {
+ ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
+ clips, num_clips);
+ } else {
+ ret = -ENOSYS;
+ goto out_err2;
+ }
+
+out_err2:
+ kfree(clips);
+out_err1:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_release - remove and free the FBs on this file
+ * @filp: file * from the ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Destroy all the FBs associated with @filp.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+void drm_fb_release(struct drm_file *priv)
+{
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_framebuffer *fb, *tfb;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+/**
+ * drm_mode_attachmode - add a mode to the user mode list
+ * @dev: DRM device
+ * @connector: connector to add the mode to
+ * @mode: mode to add
+ *
+ * Add @mode to @connector's user mode list.
+ */
+static int drm_mode_attachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int ret = 0;
+
+ list_add_tail(&mode->head, &connector->user_modes);
+ return ret;
+}
+
+int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
+ struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+ int ret = 0;
+ struct drm_display_mode *dup_mode;
+ int need_dup = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ break;
+ if (connector->encoder->crtc == crtc) {
+ if (need_dup)
+ dup_mode = drm_mode_duplicate(dev, mode);
+ else
+ dup_mode = mode;
+ ret = drm_mode_attachmode(dev, connector, dup_mode);
+ if (ret)
+ return ret;
+ need_dup = 1;
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_attachmode_crtc);
+
+static int drm_mode_detachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int found = 0;
+ int ret = 0;
+ struct drm_display_mode *match_mode, *t;
+
+ list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
+ if (drm_mode_equal(match_mode, mode)) {
+ list_del(&match_mode->head);
+ drm_mode_destroy(dev, match_mode);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ret = -EINVAL;
+
+ return ret;
+}
+
+int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_mode_detachmode(dev, connector, mode);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_detachmode_crtc);
+
+/**
+ * drm_fb_attachmode - Attach a user mode to an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * This attaches a user specified mode to an connector.
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_attachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ struct drm_mode_object *obj;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ drm_crtc_convert_umode(mode, umode);
+
+ ret = drm_mode_attachmode(dev, connector, mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_detachmode - Detach a user specified mode from an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_detachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode mode;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ drm_crtc_convert_umode(&mode, umode);
+ ret = drm_mode_detachmode(dev, connector, &mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+struct drm_property *drm_property_create(struct drm_device *dev, int flags,
+ const char *name, int num_values)
+{
+ struct drm_property *property = NULL;
+
+ property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
+ if (!property)
+ return NULL;
+
+ if (num_values) {
+ property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
+ if (!property->values)
+ goto fail;
+ }
+
+ drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
+ property->flags = flags;
+ property->num_values = num_values;
+ INIT_LIST_HEAD(&property->enum_blob_list);
+
+ if (name)
+ strncpy(property->name, name, DRM_PROP_NAME_LEN);
+
+ list_add_tail(&property->head, &dev->mode_config.property_list);
+ return property;
+fail:
+ kfree(property);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_property_create);
+
+int drm_property_add_enum(struct drm_property *property, int index,
+ uint64_t value, const char *name)
+{
+ struct drm_property_enum *prop_enum;
+
+ if (!(property->flags & DRM_MODE_PROP_ENUM))
+ return -EINVAL;
+
+ if (!list_empty(&property->enum_blob_list)) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+ if (prop_enum->value == value) {
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ return 0;
+ }
+ }
+ }
+
+ prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
+ if (!prop_enum)
+ return -ENOMEM;
+
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ prop_enum->value = value;
+
+ property->values[index] = value;
+ list_add_tail(&prop_enum->head, &property->enum_blob_list);
+ return 0;
+}
+EXPORT_SYMBOL(drm_property_add_enum);
+
+void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
+{
+ struct drm_property_enum *prop_enum, *pt;
+
+ list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
+ list_del(&prop_enum->head);
+ kfree(prop_enum);
+ }
+
+ if (property->num_values)
+ kfree(property->values);
+ drm_mode_object_put(dev, &property->base);
+ list_del(&property->head);
+ kfree(property);
+}
+EXPORT_SYMBOL(drm_property_destroy);
+
+int drm_connector_attach_property(struct drm_connector *connector,
+ struct drm_property *property, uint64_t init_val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == 0) {
+ connector->property_ids[i] = property->base.id;
+ connector->property_values[i] = init_val;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_property);
+
+int drm_connector_property_set_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t value)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ connector->property_values[i] = value;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_set_value);
+
+int drm_connector_property_get_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t *val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ *val = connector->property_values[i];
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_get_value);
+
+int drm_mode_getproperty_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_property *out_resp = data;
+ struct drm_property *property;
+ int enum_count = 0;
+ int blob_count = 0;
+ int value_count = 0;
+ int ret = 0, i;
+ int copied;
+ struct drm_property_enum *prop_enum;
+ struct drm_mode_property_enum __user *enum_ptr;
+ struct drm_property_blob *prop_blob;
+ uint32_t *blob_id_ptr;
+ uint64_t __user *values_ptr;
+ uint32_t __user *blob_length_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head)
+ enum_count++;
+ } else if (property->flags & DRM_MODE_PROP_BLOB) {
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head)
+ blob_count++;
+ }
+
+ value_count = property->num_values;
+
+ strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
+ out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
+ out_resp->flags = property->flags;
+
+ if ((out_resp->count_values >= value_count) && value_count) {
+ values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
+ for (i = 0; i < value_count; i++) {
+ if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ out_resp->count_values = value_count;
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
+ copied = 0;
+ enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+
+ if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (copy_to_user(&enum_ptr[copied].name,
+ &prop_enum->name, DRM_PROP_NAME_LEN)) {
+ ret = -EFAULT;
+ goto done;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = enum_count;
+ }
+
+ if (property->flags & DRM_MODE_PROP_BLOB) {
+ if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
+ copied = 0;
+ blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
+ blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
+
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
+ if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (put_user(prop_blob->length, blob_length_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = blob_count;
+ }
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
+ void *data)
+{
+ struct drm_property_blob *blob;
+
+ if (!length || !data)
+ return NULL;
+
+ blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
+ if (!blob)
+ return NULL;
+
+ blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
+ blob->length = length;
+
+ memcpy(blob->data, data, length);
+
+ drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
+
+ list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
+ return blob;
+}
+
+static void drm_property_destroy_blob(struct drm_device *dev,
+ struct drm_property_blob *blob)
+{
+ drm_mode_object_put(dev, &blob->base);
+ list_del(&blob->head);
+ kfree(blob);
+}
+
+int drm_mode_getblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_blob *out_resp = data;
+ struct drm_property_blob *blob;
+ int ret = 0;
+ void *blob_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ blob = obj_to_blob(obj);
+
+ if (out_resp->length == blob->length) {
+ blob_ptr = (void *)(unsigned long)out_resp->data;
+ if (copy_to_user(blob_ptr, blob->data, blob->length)){
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ out_resp->length = blob->length;
+
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_update_edid_property(struct drm_connector *connector,
+ struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int ret = 0, size;
+
+ if (connector->edid_blob_ptr)
+ drm_property_destroy_blob(dev, connector->edid_blob_ptr);
+
+ /* Delete edid, when there is none. */
+ if (!edid) {
+ connector->edid_blob_ptr = NULL;
+ ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
+ return ret;
+ }
+
+ size = EDID_LENGTH * (1 + edid->extensions);
+ connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
+ size, edid);
+
+ ret = drm_connector_property_set_value(connector,
+ dev->mode_config.edid_property,
+ connector->edid_blob_ptr->base.id);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
+
+int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_connector_set_property *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_property *property;
+ struct drm_connector *connector;
+ int ret = -EINVAL;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == out_resp->prop_id)
+ break;
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY) {
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ goto out;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_IMMUTABLE)
+ goto out;
+
+ if (property->flags & DRM_MODE_PROP_RANGE) {
+ if (out_resp->value < property->values[0])
+ goto out;
+
+ if (out_resp->value > property->values[1])
+ goto out;
+ } else {
+ int found = 0;
+ for (i = 0; i < property->num_values; i++) {
+ if (property->values[i] == out_resp->value) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ goto out;
+ }
+ }
+
+ /* Do DPMS ourselves */
+ if (property == connector->dev->mode_config.dpms_property) {
+ if (connector->funcs->dpms)
+ (*connector->funcs->dpms)(connector, (int) out_resp->value);
+ ret = 0;
+ } else if (connector->funcs->set_property)
+ ret = connector->funcs->set_property(connector, property, out_resp->value);
+
+ /* store the property value if successful */
+ if (!ret)
+ drm_connector_property_set_value(connector, property, out_resp->value);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_attach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0) {
+ connector->encoder_ids[i] = encoder->base.id;
+ return 0;
+ }
+ }
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
+
+void drm_mode_connector_detach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == encoder->base.id) {
+ connector->encoder_ids[i] = 0;
+ if (connector->encoder == encoder)
+ connector->encoder = NULL;
+ break;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
+
+bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size)
+{
+ crtc->gamma_size = gamma_size;
+
+ crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
+ if (!crtc->gamma_store) {
+ crtc->gamma_size = 0;
+ return false;
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+
+int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+
+}
+
+int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_page_flip_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+ struct drm_pending_vblank_event *e = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
+ page_flip->reserved != 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj)
+ goto out;
+ crtc = obj_to_crtc(obj);
+
+ if (crtc->fb == NULL) {
+ /* The framebuffer is currently unbound, presumably
+ * due to a hotplug event, that userspace has not
+ * yet discovered.
+ */
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (crtc->funcs->page_flip == NULL)
+ goto out;
+
+ obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj)
+ goto out;
+ fb = obj_to_fb(obj);
+
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ ret = -ENOMEM;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+ file_priv->event_space -= sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+
+ e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = page_flip->user_data;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy =
+ (void (*) (struct drm_pending_event *)) kfree;
+ }
+
+ ret = crtc->funcs->page_flip(crtc, fb, e);
+ if (ret) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
--- /dev/null
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+#include "drm_fb_helper.h"
+
+static bool drm_kms_helper_poll = true;
+module_param_named(poll, drm_kms_helper_poll, bool, 0600);
+
+static void drm_mode_validate_flag(struct drm_connector *connector,
+ int flags)
+{
+ struct drm_display_mode *mode, *t;
+
+ if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE))
+ return;
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head) {
+ if ((mode->flags & DRM_MODE_FLAG_INTERLACE) &&
+ !(flags & DRM_MODE_FLAG_INTERLACE))
+ mode->status = MODE_NO_INTERLACE;
+ if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) &&
+ !(flags & DRM_MODE_FLAG_DBLSCAN))
+ mode->status = MODE_NO_DBLESCAN;
+ }
+
+ return;
+}
+
+/**
+ * drm_helper_probe_single_connector_modes - get complete set of display modes
+ * @dev: DRM device
+ * @maxX: max width for modes
+ * @maxY: max height for modes
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Based on @dev's mode_config layout, scan all the connectors and try to detect
+ * modes on them. Modes will first be added to the connector's probed_modes
+ * list, then culled (based on validity and the @maxX, @maxY parameters) and
+ * put into the normal modes list.
+ *
+ * Intended to be used either at bootup time or when major configuration
+ * changes have occurred.
+ *
+ * FIXME: take into account monitor limits
+ *
+ * RETURNS:
+ * Number of modes found on @connector.
+ */
+int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
+ uint32_t maxX, uint32_t maxY)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode, *t;
+ struct drm_connector_helper_funcs *connector_funcs =
+ connector->helper_private;
+ int count = 0;
+ int mode_flags = 0;
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,
+ drm_get_connector_name(connector));
+ /* set all modes to the unverified state */
+ list_for_each_entry_safe(mode, t, &connector->modes, head)
+ mode->status = MODE_UNVERIFIED;
+
+ if (connector->force) {
+ if (connector->force == DRM_FORCE_ON)
+ connector->status = connector_status_connected;
+ else
+ connector->status = connector_status_disconnected;
+ if (connector->funcs->force)
+ connector->funcs->force(connector);
+ } else {
+ connector->status = connector->funcs->detect(connector, true);
+ drm_kms_helper_poll_enable(dev);
+ }
+
+ if (connector->status == connector_status_disconnected) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
+ connector->base.id, drm_get_connector_name(connector));
+ drm_mode_connector_update_edid_property(connector, NULL);
+ goto prune;
+ }
+
+ count = (*connector_funcs->get_modes)(connector);
+ if (count == 0 && connector->status == connector_status_connected)
+ count = drm_add_modes_noedid(connector, 1024, 768);
+ if (count == 0)
+ goto prune;
+
+ drm_mode_connector_list_update(connector);
+
+ if (maxX && maxY)
+ drm_mode_validate_size(dev, &connector->modes, maxX,
+ maxY, 0);
+
+ if (connector->interlace_allowed)
+ mode_flags |= DRM_MODE_FLAG_INTERLACE;
+ if (connector->doublescan_allowed)
+ mode_flags |= DRM_MODE_FLAG_DBLSCAN;
+ drm_mode_validate_flag(connector, mode_flags);
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head) {
+ if (mode->status == MODE_OK)
+ mode->status = connector_funcs->mode_valid(connector,
+ mode);
+ }
+
+prune:
+ drm_mode_prune_invalid(dev, &connector->modes, true);
+
+ if (list_empty(&connector->modes))
+ return 0;
+
+ drm_mode_sort(&connector->modes);
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id,
+ drm_get_connector_name(connector));
+ list_for_each_entry_safe(mode, t, &connector->modes, head) {
+ mode->vrefresh = drm_mode_vrefresh(mode);
+
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ drm_mode_debug_printmodeline(mode);
+ }
+
+ return count;
+}
+EXPORT_SYMBOL(drm_helper_probe_single_connector_modes);
+
+/**
+ * drm_helper_encoder_in_use - check if a given encoder is in use
+ * @encoder: encoder to check
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Walk @encoders's DRM device's mode_config and see if it's in use.
+ *
+ * RETURNS:
+ * True if @encoder is part of the mode_config, false otherwise.
+ */
+bool drm_helper_encoder_in_use(struct drm_encoder *encoder)
+{
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder == encoder)
+ return true;
+ return false;
+}
+EXPORT_SYMBOL(drm_helper_encoder_in_use);
+
+/**
+ * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config
+ * @crtc: CRTC to check
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Walk @crtc's DRM device's mode_config and see if it's in use.
+ *
+ * RETURNS:
+ * True if @crtc is part of the mode_config, false otherwise.
+ */
+bool drm_helper_crtc_in_use(struct drm_crtc *crtc)
+{
+ struct drm_encoder *encoder;
+ struct drm_device *dev = crtc->dev;
+ /* FIXME: Locking around list access? */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder))
+ return true;
+ return false;
+}
+EXPORT_SYMBOL(drm_helper_crtc_in_use);
+
+static void
+drm_encoder_disable(struct drm_encoder *encoder)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+
+ if (encoder_funcs->disable)
+ (*encoder_funcs->disable)(encoder);
+ else
+ (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+}
+
+/**
+ * drm_helper_disable_unused_functions - disable unused objects
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled
+ * by calling its dpms function, which should power it off.
+ */
+void drm_helper_disable_unused_functions(struct drm_device *dev)
+{
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+ if (connector->status == connector_status_disconnected)
+ connector->encoder = NULL;
+ }
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (!drm_helper_encoder_in_use(encoder)) {
+ drm_encoder_disable(encoder);
+ /* disconnector encoder from any connector */
+ encoder->crtc = NULL;
+ }
+ }
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ crtc->enabled = drm_helper_crtc_in_use(crtc);
+ if (!crtc->enabled) {
+ if (crtc_funcs->disable)
+ (*crtc_funcs->disable)(crtc);
+ else
+ (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);
+ crtc->fb = NULL;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_helper_disable_unused_functions);
+
+/**
+ * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
+ * @encoder: encoder to test
+ * @crtc: crtc to test
+ *
+ * Return false if @encoder can't be driven by @crtc, true otherwise.
+ */
+static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
+ struct drm_crtc *crtc)
+{
+ struct drm_device *dev;
+ struct drm_crtc *tmp;
+ int crtc_mask = 1;
+
+ WARN(!crtc, "checking null crtc?\n");
+
+ dev = crtc->dev;
+
+ list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
+ if (tmp == crtc)
+ break;
+ crtc_mask <<= 1;
+ }
+
+ if (encoder->possible_crtcs & crtc_mask)
+ return true;
+ return false;
+}
+
+/*
+ * Check the CRTC we're going to map each output to vs. its current
+ * CRTC. If they don't match, we have to disable the output and the CRTC
+ * since the driver will have to re-route things.
+ */
+static void
+drm_crtc_prepare_encoders(struct drm_device *dev)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_encoder *encoder;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ encoder_funcs = encoder->helper_private;
+ /* Disable unused encoders */
+ if (encoder->crtc == NULL)
+ drm_encoder_disable(encoder);
+ /* Disable encoders whose CRTC is about to change */
+ if (encoder_funcs->get_crtc &&
+ encoder->crtc != (*encoder_funcs->get_crtc)(encoder))
+ drm_encoder_disable(encoder);
+ }
+}
+
+/**
+ * drm_crtc_set_mode - set a mode
+ * @crtc: CRTC to program
+ * @mode: mode to use
+ * @x: width of mode
+ * @y: height of mode
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance
+ * to fixup or reject the mode prior to trying to set it.
+ *
+ * RETURNS:
+ * True if the mode was set successfully, or false otherwise.
+ */
+bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_display_mode *adjusted_mode, saved_mode;
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ int saved_x, saved_y;
+ struct drm_encoder *encoder;
+ bool ret = true;
+
+ adjusted_mode = drm_mode_duplicate(dev, mode);
+
+ crtc->enabled = drm_helper_crtc_in_use(crtc);
+
+ if (!crtc->enabled)
+ return true;
+
+ saved_mode = crtc->mode;
+ saved_x = crtc->x;
+ saved_y = crtc->y;
+
+ /* Update crtc values up front so the driver can rely on them for mode
+ * setting.
+ */
+ crtc->mode = *mode;
+ crtc->x = x;
+ crtc->y = y;
+
+ /* Pass our mode to the connectors and the CRTC to give them a chance to
+ * adjust it according to limitations or connector properties, and also
+ * a chance to reject the mode entirely.
+ */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+ encoder_funcs = encoder->helper_private;
+ if (!(ret = encoder_funcs->mode_fixup(encoder, mode,
+ adjusted_mode))) {
+ goto done;
+ }
+ }
+
+ if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) {
+ goto done;
+ }
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+
+ /* Prepare the encoders and CRTCs before setting the mode. */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+ encoder_funcs = encoder->helper_private;
+ /* Disable the encoders as the first thing we do. */
+ encoder_funcs->prepare(encoder);
+ }
+
+ drm_crtc_prepare_encoders(dev);
+
+ crtc_funcs->prepare(crtc);
+
+ /* Set up the DPLL and any encoders state that needs to adjust or depend
+ * on the DPLL.
+ */
+ ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb);
+ if (!ret)
+ goto done;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+
+ DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
+ encoder->base.id, drm_get_encoder_name(encoder),
+ mode->base.id, mode->name);
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->mode_set(encoder, mode, adjusted_mode);
+ }
+
+ /* Now enable the clocks, plane, pipe, and connectors that we set up. */
+ crtc_funcs->commit(crtc);
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->commit(encoder);
+
+ }
+
+ /* XXX free adjustedmode */
+ drm_mode_destroy(dev, adjusted_mode);
+ /* FIXME: add subpixel order */
+done:
+ if (!ret) {
+ crtc->mode = saved_mode;
+ crtc->x = saved_x;
+ crtc->y = saved_y;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_crtc_helper_set_mode);
+
+
+/**
+ * drm_crtc_helper_set_config - set a new config from userspace
+ * @crtc: CRTC to setup
+ * @crtc_info: user provided configuration
+ * @new_mode: new mode to set
+ * @connector_set: set of connectors for the new config
+ * @fb: new framebuffer
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Setup a new configuration, provided by the user in @crtc_info, and enable
+ * it.
+ *
+ * RETURNS:
+ * Zero. (FIXME)
+ */
+int drm_crtc_helper_set_config(struct drm_mode_set *set)
+{
+ struct drm_device *dev;
+ struct drm_crtc *save_crtcs, *new_crtc, *crtc;
+ struct drm_encoder *save_encoders, *new_encoder, *encoder;
+ struct drm_framebuffer *old_fb = NULL;
+ bool mode_changed = false; /* if true do a full mode set */
+ bool fb_changed = false; /* if true and !mode_changed just do a flip */
+ struct drm_connector *save_connectors, *connector;
+ int count = 0, ro, fail = 0;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ int ret = 0;
+ int i;
+
+ DRM_DEBUG_KMS("\n");
+
+ if (!set)
+ return -EINVAL;
+
+ if (!set->crtc)
+ return -EINVAL;
+
+ if (!set->crtc->helper_private)
+ return -EINVAL;
+
+ crtc_funcs = set->crtc->helper_private;
+
+ if (set->fb) {
+ DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
+ set->crtc->base.id, set->fb->base.id,
+ (int)set->num_connectors, set->x, set->y);
+ } else {
+ DRM_DEBUG_KMS("[CRTC:%d] [NOFB] #connectors=%d (x y) (%i %i)\n",
+ set->crtc->base.id, (int)set->num_connectors,
+ set->x, set->y);
+ }
+
+ dev = set->crtc->dev;
+
+ /* Allocate space for the backup of all (non-pointer) crtc, encoder and
+ * connector data. */
+ save_crtcs = kzalloc(dev->mode_config.num_crtc *
+ sizeof(struct drm_crtc), GFP_KERNEL);
+ if (!save_crtcs)
+ return -ENOMEM;
+
+ save_encoders = kzalloc(dev->mode_config.num_encoder *
+ sizeof(struct drm_encoder), GFP_KERNEL);
+ if (!save_encoders) {
+ kfree(save_crtcs);
+ return -ENOMEM;
+ }
+
+ save_connectors = kzalloc(dev->mode_config.num_connector *
+ sizeof(struct drm_connector), GFP_KERNEL);
+ if (!save_connectors) {
+ kfree(save_crtcs);
+ kfree(save_encoders);
+ return -ENOMEM;
+ }
+
+ /* Copy data. Note that driver private data is not affected.
+ * Should anything bad happen only the expected state is
+ * restored, not the drivers personal bookkeeping.
+ */
+ count = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ save_crtcs[count++] = *crtc;
+ }
+
+ count = 0;
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ save_encoders[count++] = *encoder;
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ save_connectors[count++] = *connector;
+ }
+
+ /* We should be able to check here if the fb has the same properties
+ * and then just flip_or_move it */
+ if (set->crtc->fb != set->fb) {
+ /* If we have no fb then treat it as a full mode set */
+ if (set->crtc->fb == NULL) {
+ DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
+ mode_changed = true;
+ } else if (set->fb == NULL) {
+ mode_changed = true;
+ } else
+ fb_changed = true;
+ }
+
+ if (set->x != set->crtc->x || set->y != set->crtc->y)
+ fb_changed = true;
+
+ if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
+ DRM_DEBUG_KMS("modes are different, full mode set\n");
+ drm_mode_debug_printmodeline(&set->crtc->mode);
+ drm_mode_debug_printmodeline(set->mode);
+ mode_changed = true;
+ }
+
+ /* a) traverse passed in connector list and get encoders for them */
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ struct drm_connector_helper_funcs *connector_funcs =
+ connector->helper_private;
+ new_encoder = connector->encoder;
+ for (ro = 0; ro < set->num_connectors; ro++) {
+ if (set->connectors[ro] == connector) {
+ new_encoder = connector_funcs->best_encoder(connector);
+ /* if we can't get an encoder for a connector
+ we are setting now - then fail */
+ if (new_encoder == NULL)
+ /* don't break so fail path works correct */
+ fail = 1;
+ break;
+ }
+ }
+
+ if (new_encoder != connector->encoder) {
+ DRM_DEBUG_KMS("encoder changed, full mode switch\n");
+ mode_changed = true;
+ /* If the encoder is reused for another connector, then
+ * the appropriate crtc will be set later.
+ */
+ if (connector->encoder)
+ connector->encoder->crtc = NULL;
+ connector->encoder = new_encoder;
+ }
+ }
+
+ if (fail) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+
+ if (connector->encoder->crtc == set->crtc)
+ new_crtc = NULL;
+ else
+ new_crtc = connector->encoder->crtc;
+
+ for (ro = 0; ro < set->num_connectors; ro++) {
+ if (set->connectors[ro] == connector)
+ new_crtc = set->crtc;
+ }
+
+ /* Make sure the new CRTC will work with the encoder */
+ if (new_crtc &&
+ !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {
+ ret = -EINVAL;
+ goto fail;
+ }
+ if (new_crtc != connector->encoder->crtc) {
+ DRM_DEBUG_KMS("crtc changed, full mode switch\n");
+ mode_changed = true;
+ connector->encoder->crtc = new_crtc;
+ }
+ if (new_crtc) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
+ connector->base.id, drm_get_connector_name(connector),
+ new_crtc->base.id);
+ } else {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
+ connector->base.id, drm_get_connector_name(connector));
+ }
+ }
+
+ /* mode_set_base is not a required function */
+ if (fb_changed && !crtc_funcs->mode_set_base)
+ mode_changed = true;
+
+ if (mode_changed) {
+ set->crtc->enabled = (set->mode != NULL);
+ if (set->mode != NULL) {
+ DRM_DEBUG_KMS("attempting to set mode from"
+ " userspace\n");
+ drm_mode_debug_printmodeline(set->mode);
+ old_fb = set->crtc->fb;
+ set->crtc->fb = set->fb;
+ if (!drm_crtc_helper_set_mode(set->crtc, set->mode,
+ set->x, set->y,
+ old_fb)) {
+ DRM_ERROR("failed to set mode on [CRTC:%d]\n",
+ set->crtc->base.id);
+ ret = -EINVAL;
+ goto fail;
+ }
+ }
+ drm_helper_disable_unused_functions(dev);
+ } else if (fb_changed) {
+ set->crtc->x = set->x;
+ set->crtc->y = set->y;
+
+ old_fb = set->crtc->fb;
+ if (set->crtc->fb != set->fb)
+ set->crtc->fb = set->fb;
+ ret = crtc_funcs->mode_set_base(set->crtc,
+ set->x, set->y, old_fb);
+ if (ret != 0)
+ goto fail;
+ }
+ DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
+ for (i = 0; i < set->num_connectors; i++) {
+ DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
+ drm_get_connector_name(set->connectors[i]));
+ set->connectors[i]->dpms = DRM_MODE_DPMS_ON;
+ }
+
+ kfree(save_connectors);
+ kfree(save_encoders);
+ kfree(save_crtcs);
+ return 0;
+
+fail:
+ /* Restore all previous data. */
+ count = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ *crtc = save_crtcs[count++];
+ }
+
+ count = 0;
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ *encoder = save_encoders[count++];
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ *connector = save_connectors[count++];
+ }
+
+ kfree(save_connectors);
+ kfree(save_encoders);
+ kfree(save_crtcs);
+ return ret;
+}
+EXPORT_SYMBOL(drm_crtc_helper_set_config);
+
+static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)
+{
+ int dpms = DRM_MODE_DPMS_OFF;
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder == encoder)
+ if (connector->dpms < dpms)
+ dpms = connector->dpms;
+ return dpms;
+}
+
+static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc)
+{
+ int dpms = DRM_MODE_DPMS_OFF;
+ struct drm_connector *connector;
+ struct drm_device *dev = crtc->dev;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder && connector->encoder->crtc == crtc)
+ if (connector->dpms < dpms)
+ dpms = connector->dpms;
+ return dpms;
+}
+
+/**
+ * drm_helper_connector_dpms
+ * @connector affected connector
+ * @mode DPMS mode
+ *
+ * Calls the low-level connector DPMS function, then
+ * calls appropriate encoder and crtc DPMS functions as well
+ */
+void drm_helper_connector_dpms(struct drm_connector *connector, int mode)
+{
+ struct drm_encoder *encoder = connector->encoder;
+ struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;
+ int old_dpms;
+
+ if (mode == connector->dpms)
+ return;
+
+ old_dpms = connector->dpms;
+ connector->dpms = mode;
+
+ /* from off to on, do crtc then encoder */
+ if (mode < old_dpms) {
+ if (crtc) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ if (encoder) {
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+ }
+
+ /* from on to off, do encoder then crtc */
+ if (mode > old_dpms) {
+ if (encoder) {
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+ if (crtc) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ }
+
+ return;
+}
+EXPORT_SYMBOL(drm_helper_connector_dpms);
+
+int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
+ struct drm_mode_fb_cmd *mode_cmd)
+{
+ fb->width = mode_cmd->width;
+ fb->height = mode_cmd->height;
+ fb->pitch = mode_cmd->pitch;
+ fb->bits_per_pixel = mode_cmd->bpp;
+ fb->depth = mode_cmd->depth;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct);
+
+int drm_helper_resume_force_mode(struct drm_device *dev)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ int ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+
+ if (!crtc->enabled)
+ continue;
+
+ ret = drm_crtc_helper_set_mode(crtc, &crtc->mode,
+ crtc->x, crtc->y, crtc->fb);
+
+ if (ret == false)
+ DRM_ERROR("failed to set mode on crtc %p\n", crtc);
+
+ /* Turn off outputs that were already powered off */
+ if (drm_helper_choose_crtc_dpms(crtc)) {
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if(encoder->crtc != crtc)
+ continue;
+
+ encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+
+ crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ }
+ /* disable the unused connectors while restoring the modesetting */
+ drm_helper_disable_unused_functions(dev);
+ return 0;
+}
+EXPORT_SYMBOL(drm_helper_resume_force_mode);
+
+#define DRM_OUTPUT_POLL_PERIOD (10*HZ)
+static void output_poll_execute(struct work_struct *work)
+{
+ struct delayed_work *delayed_work = to_delayed_work(work);
+ struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
+ struct drm_connector *connector;
+ enum drm_connector_status old_status;
+ bool repoll = false, changed = false;
+
+ if (!drm_kms_helper_poll)
+ return;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+
+ /* if this is HPD or polled don't check it -
+ TV out for instance */
+ if (!connector->polled)
+ continue;
+
+ else if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT))
+ repoll = true;
+
+ old_status = connector->status;
+ /* if we are connected and don't want to poll for disconnect
+ skip it */
+ if (old_status == connector_status_connected &&
+ !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT) &&
+ !(connector->polled & DRM_CONNECTOR_POLL_HPD))
+ continue;
+
+ connector->status = connector->funcs->detect(connector, false);
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+ connector->base.id,
+ drm_get_connector_name(connector),
+ old_status, connector->status);
+ if (old_status != connector->status)
+ changed = true;
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+
+ if (changed) {
+ /* send a uevent + call fbdev */
+ drm_sysfs_hotplug_event(dev);
+ if (dev->mode_config.funcs->output_poll_changed)
+ dev->mode_config.funcs->output_poll_changed(dev);
+ }
+
+ if (repoll)
+ queue_delayed_work(system_nrt_wq, delayed_work, DRM_OUTPUT_POLL_PERIOD);
+}
+
+void drm_kms_helper_poll_disable(struct drm_device *dev)
+{
+ if (!dev->mode_config.poll_enabled)
+ return;
+ cancel_delayed_work_sync(&dev->mode_config.output_poll_work);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_disable);
+
+void drm_kms_helper_poll_enable(struct drm_device *dev)
+{
+ bool poll = false;
+ struct drm_connector *connector;
+
+ if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
+ return;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->polled)
+ poll = true;
+ }
+
+ if (poll)
+ queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_enable);
+
+void drm_kms_helper_poll_init(struct drm_device *dev)
+{
+ INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute);
+ dev->mode_config.poll_enabled = true;
+
+ drm_kms_helper_poll_enable(dev);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_init);
+
+void drm_kms_helper_poll_fini(struct drm_device *dev)
+{
+ drm_kms_helper_poll_disable(dev);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_fini);
+
+void drm_helper_hpd_irq_event(struct drm_device *dev)
+{
+ if (!dev->mode_config.poll_enabled)
+ return;
+
+ /* kill timer and schedule immediate execution, this doesn't block */
+ cancel_delayed_work(&dev->mode_config.output_poll_work);
+ if (drm_kms_helper_poll)
+ queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
+}
+EXPORT_SYMBOL(drm_helper_hpd_irq_event);
--- /dev/null
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node *node = inode->i_private;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct dentry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+ root, tmp, &drm_debugfs_fops);
+ if (!ent) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
+ name, files[i].name);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ tmp->minor = minor;
+ tmp->dent = ent;
+ tmp->info_ent = &files[i];
+ list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+ }
+ return 0;
+
+fail:
+ drm_debugfs_remove_files(files, count, minor);
+ return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
+ * "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
+ * "/sys/kernel/debug/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->debugfs_root = debugfs_create_dir(name, root);
+ if (!minor->debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+ if (ret) {
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+ DRM_ERROR("Failed to create core drm debugfs files\n");
+ return ret;
+ }
+
+ if (dev->driver->debugfs_init) {
+ ret = dev->driver->debugfs_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/sys/kernel/debug/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ debugfs_remove(tmp->dent);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+
+ if (!minor->debugfs_root)
+ return 0;
+
+ if (dev->driver->debugfs_cleanup)
+ dev->driver->debugfs_cleanup(minor);
+
+ drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+
+ return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
--- /dev/null
+/**
+ * \file drm_dma.c
+ * DMA IOCTL and function support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Initialize the DMA data.
+ *
+ * \param dev DRM device.
+ * \return zero on success or a negative value on failure.
+ *
+ * Allocate and initialize a drm_device_dma structure.
+ */
+int drm_dma_setup(struct drm_device *dev)
+{
+ int i;
+
+ dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL);
+ if (!dev->dma)
+ return -ENOMEM;
+
+ for (i = 0; i <= DRM_MAX_ORDER; i++)
+ memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
+
+ return 0;
+}
+
+/**
+ * Cleanup the DMA resources.
+ *
+ * \param dev DRM device.
+ *
+ * Free all pages associated with DMA buffers, the buffers and pages lists, and
+ * finally the drm_device::dma structure itself.
+ */
+void drm_dma_takedown(struct drm_device *dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i, j;
+
+ if (!dma)
+ return;
+
+ /* Clear dma buffers */
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].seg_count) {
+ DRM_DEBUG("order %d: buf_count = %d,"
+ " seg_count = %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].seg_count);
+ for (j = 0; j < dma->bufs[i].seg_count; j++) {
+ if (dma->bufs[i].seglist[j]) {
+ drm_pci_free(dev, dma->bufs[i].seglist[j]);
+ }
+ }
+ kfree(dma->bufs[i].seglist);
+ }
+ if (dma->bufs[i].buf_count) {
+ for (j = 0; j < dma->bufs[i].buf_count; j++) {
+ kfree(dma->bufs[i].buflist[j].dev_private);
+ }
+ kfree(dma->bufs[i].buflist);
+ }
+ }
+
+ kfree(dma->buflist);
+ kfree(dma->pagelist);
+ kfree(dev->dma);
+ dev->dma = NULL;
+}
+
+/**
+ * Free a buffer.
+ *
+ * \param dev DRM device.
+ * \param buf buffer to free.
+ *
+ * Resets the fields of \p buf.
+ */
+void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
+{
+ if (!buf)
+ return;
+
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+ buf->used = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)
+ && waitqueue_active(&buf->dma_wait)) {
+ wake_up_interruptible(&buf->dma_wait);
+ }
+}
+
+/**
+ * Reclaim the buffers.
+ *
+ * \param file_priv DRM file private.
+ *
+ * Frees each buffer associated with \p file_priv not already on the hardware.
+ */
+void drm_core_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ if (!dma)
+ return;
+ for (i = 0; i < dma->buf_count; i++) {
+ if (dma->buflist[i]->file_priv == file_priv) {
+ switch (dma->buflist[i]->list) {
+ case DRM_LIST_NONE:
+ drm_free_buffer(dev, dma->buflist[i]);
+ break;
+ case DRM_LIST_WAIT:
+ dma->buflist[i]->list = DRM_LIST_RECLAIM;
+ break;
+ default:
+ /* Buffer already on hardware. */
+ break;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_core_reclaim_buffers);
--- /dev/null
+/*
+ * Copyright © 2009 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/i2c.h>
+#include "drm_dp_helper.h"
+#include "drmP.h"
+
+/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */
+static int
+i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode,
+ uint8_t write_byte, uint8_t *read_byte)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ ret = (*algo_data->aux_ch)(adapter, mode,
+ write_byte, read_byte);
+ return ret;
+}
+
+/*
+ * I2C over AUX CH
+ */
+
+/*
+ * Send the address. If the I2C link is running, this 'restarts'
+ * the connection with the new address, this is used for doing
+ * a write followed by a read (as needed for DDC)
+ */
+static int
+i2c_algo_dp_aux_address(struct i2c_adapter *adapter, u16 address, bool reading)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int mode = MODE_I2C_START;
+ int ret;
+
+ if (reading)
+ mode |= MODE_I2C_READ;
+ else
+ mode |= MODE_I2C_WRITE;
+ algo_data->address = address;
+ algo_data->running = true;
+ ret = i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+ return ret;
+}
+
+/*
+ * Stop the I2C transaction. This closes out the link, sending
+ * a bare address packet with the MOT bit turned off
+ */
+static void
+i2c_algo_dp_aux_stop(struct i2c_adapter *adapter, bool reading)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int mode = MODE_I2C_STOP;
+
+ if (reading)
+ mode |= MODE_I2C_READ;
+ else
+ mode |= MODE_I2C_WRITE;
+ if (algo_data->running) {
+ (void) i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+ algo_data->running = false;
+ }
+}
+
+/*
+ * Write a single byte to the current I2C address, the
+ * the I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_put_byte(struct i2c_adapter *adapter, u8 byte)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ if (!algo_data->running)
+ return -EIO;
+
+ ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_WRITE, byte, NULL);
+ return ret;
+}
+
+/*
+ * Read a single byte from the current I2C address, the
+ * I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_get_byte(struct i2c_adapter *adapter, u8 *byte_ret)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ if (!algo_data->running)
+ return -EIO;
+
+ ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_READ, 0, byte_ret);
+ return ret;
+}
+
+static int
+i2c_algo_dp_aux_xfer(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs,
+ int num)
+{
+ int ret = 0;
+ bool reading = false;
+ int m;
+ int b;
+
+ for (m = 0; m < num; m++) {
+ u16 len = msgs[m].len;
+ u8 *buf = msgs[m].buf;
+ reading = (msgs[m].flags & I2C_M_RD) != 0;
+ ret = i2c_algo_dp_aux_address(adapter, msgs[m].addr, reading);
+ if (ret < 0)
+ break;
+ if (reading) {
+ for (b = 0; b < len; b++) {
+ ret = i2c_algo_dp_aux_get_byte(adapter, &buf[b]);
+ if (ret < 0)
+ break;
+ }
+ } else {
+ for (b = 0; b < len; b++) {
+ ret = i2c_algo_dp_aux_put_byte(adapter, buf[b]);
+ if (ret < 0)
+ break;
+ }
+ }
+ if (ret < 0)
+ break;
+ }
+ if (ret >= 0)
+ ret = num;
+ i2c_algo_dp_aux_stop(adapter, reading);
+ DRM_DEBUG_KMS("dp_aux_xfer return %d\n", ret);
+ return ret;
+}
+
+static u32
+i2c_algo_dp_aux_functionality(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+ I2C_FUNC_SMBUS_READ_BLOCK_DATA |
+ I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
+ I2C_FUNC_10BIT_ADDR;
+}
+
+static const struct i2c_algorithm i2c_dp_aux_algo = {
+ .master_xfer = i2c_algo_dp_aux_xfer,
+ .functionality = i2c_algo_dp_aux_functionality,
+};
+
+static void
+i2c_dp_aux_reset_bus(struct i2c_adapter *adapter)
+{
+ (void) i2c_algo_dp_aux_address(adapter, 0, false);
+ (void) i2c_algo_dp_aux_stop(adapter, false);
+
+}
+
+static int
+i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter)
+{
+ adapter->algo = &i2c_dp_aux_algo;
+ adapter->retries = 3;
+ i2c_dp_aux_reset_bus(adapter);
+ return 0;
+}
+
+int
+i2c_dp_aux_add_bus(struct i2c_adapter *adapter)
+{
+ int error;
+
+ error = i2c_dp_aux_prepare_bus(adapter);
+ if (error)
+ return error;
+ error = i2c_add_adapter(adapter);
+ return error;
+}
+EXPORT_SYMBOL(i2c_dp_aux_add_bus);
--- /dev/null
+/**
+ * \file drm_drawable.c
+ * IOCTLs for drawables
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ * \author Michel Dänzer <michel@tungstengraphics.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, North Dakota.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Allocate drawable ID and memory to store information about it.
+ */
+int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ unsigned long irqflags;
+ struct drm_draw *draw = data;
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->drw_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+ ret = idr_get_new_above(&dev->drw_idr, NULL, 1, &new_id);
+ if (ret == -EAGAIN) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ goto again;
+ }
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ draw->handle = new_id;
+
+ DRM_DEBUG("%d\n", draw->handle);
+
+ return 0;
+}
+
+/**
+ * Free drawable ID and memory to store information about it.
+ */
+int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_draw *draw = data;
+ unsigned long irqflags;
+ struct drm_drawable_info *info;
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ info = drm_get_drawable_info(dev, draw->handle);
+ if (info == NULL) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ return -EINVAL;
+ }
+ kfree(info->rects);
+ kfree(info);
+
+ idr_remove(&dev->drw_idr, draw->handle);
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ DRM_DEBUG("%d\n", draw->handle);
+ return 0;
+}
+
+int drm_update_drawable_info(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_update_draw *update = data;
+ unsigned long irqflags;
+ struct drm_clip_rect *rects;
+ struct drm_drawable_info *info;
+ int err;
+
+ info = idr_find(&dev->drw_idr, update->handle);
+ if (!info) {
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ if (IS_ERR(idr_replace(&dev->drw_idr, info, update->handle))) {
+ DRM_ERROR("No such drawable %d\n", update->handle);
+ kfree(info);
+ return -EINVAL;
+ }
+ }
+
+ switch (update->type) {
+ case DRM_DRAWABLE_CLIPRECTS:
+ if (update->num == 0)
+ rects = NULL;
+ else if (update->num != info->num_rects) {
+ rects = kmalloc(update->num *
+ sizeof(struct drm_clip_rect),
+ GFP_KERNEL);
+ } else
+ rects = info->rects;
+
+ if (update->num && !rects) {
+ DRM_ERROR("Failed to allocate cliprect memory\n");
+ err = -ENOMEM;
+ goto error;
+ }
+
+ if (update->num && DRM_COPY_FROM_USER(rects,
+ (struct drm_clip_rect __user *)
+ (unsigned long)update->data,
+ update->num *
+ sizeof(*rects))) {
+ DRM_ERROR("Failed to copy cliprects from userspace\n");
+ err = -EFAULT;
+ goto error;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ if (rects != info->rects) {
+ kfree(info->rects);
+ }
+
+ info->rects = rects;
+ info->num_rects = update->num;
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ DRM_DEBUG("Updated %d cliprects for drawable %d\n",
+ info->num_rects, update->handle);
+ break;
+ default:
+ DRM_ERROR("Invalid update type %d\n", update->type);
+ return -EINVAL;
+ }
+
+ return 0;
+
+error:
+ if (rects != info->rects)
+ kfree(rects);
+
+ return err;
+}
+
+/**
+ * Caller must hold the drawable spinlock!
+ */
+struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id)
+{
+ return idr_find(&dev->drw_idr, id);
+}
+EXPORT_SYMBOL(drm_get_drawable_info);
+
+static int drm_drawable_free(int idr, void *p, void *data)
+{
+ struct drm_drawable_info *info = p;
+
+ if (info) {
+ kfree(info->rects);
+ kfree(info);
+ }
+
+ return 0;
+}
+
+void drm_drawable_free_all(struct drm_device *dev)
+{
+ idr_for_each(&dev->drw_idr, drm_drawable_free, NULL);
+ idr_remove_all(&dev->drw_idr);
+}
--- /dev/null
+/**
+ * \file drm_drv.c
+ * Generic driver template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * \code
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define drm_x mga_##x
+ * \endcode
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
+ [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0}
+
+/** Ioctl table */
+static struct drm_ioctl_desc drm_ioctls[] = {
+ DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+ DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+#if __OS_HAS_AGP
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+#endif
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED)
+};
+
+#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
+
+/**
+ * Take down the DRM device.
+ *
+ * \param dev DRM device structure.
+ *
+ * Frees every resource in \p dev.
+ *
+ * \sa drm_device
+ */
+int drm_lastclose(struct drm_device * dev)
+{
+ struct drm_vma_entry *vma, *vma_temp;
+ int i;
+
+ DRM_DEBUG("\n");
+
+ if (dev->driver->lastclose)
+ dev->driver->lastclose(dev);
+ DRM_DEBUG("driver lastclose completed\n");
+
+ if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_irq_uninstall(dev);
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Clear AGP information */
+ if (drm_core_has_AGP(dev) && dev->agp &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ struct drm_agp_mem *entry, *tempe;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ }
+ INIT_LIST_HEAD(&dev->agp->memory);
+
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+ if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ drm_sg_cleanup(dev->sg);
+ dev->sg = NULL;
+ }
+
+ /* Clear vma list (only built for debugging) */
+ list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
+ list_del(&vma->head);
+ kfree(vma);
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
+ for (i = 0; i < dev->queue_count; i++) {
+ kfree(dev->queuelist[i]);
+ dev->queuelist[i] = NULL;
+ }
+ kfree(dev->queuelist);
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_dma_takedown(dev);
+
+ dev->dev_mapping = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("lastclose completed\n");
+ return 0;
+}
+
+/**
+ * Module initialization. Called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes an array of drm_device structures, and attempts to
+ * initialize all available devices, using consecutive minors, registering the
+ * stubs and initializing the device.
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+int drm_init(struct drm_driver *driver)
+{
+ DRM_DEBUG("\n");
+ INIT_LIST_HEAD(&driver->device_list);
+
+ if (driver->driver_features & DRIVER_USE_PLATFORM_DEVICE)
+ return drm_platform_init(driver);
+ else
+ return drm_pci_init(driver);
+}
+
+EXPORT_SYMBOL(drm_init);
+
+void drm_exit(struct drm_driver *driver)
+{
+ struct drm_device *dev, *tmp;
+ DRM_DEBUG("\n");
+
+ if (driver->driver_features & DRIVER_MODESET) {
+ pci_unregister_driver(&driver->pci_driver);
+ } else {
+ list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
+ drm_put_dev(dev);
+ }
+
+ DRM_INFO("Module unloaded\n");
+}
+
+EXPORT_SYMBOL(drm_exit);
+
+/** File operations structure */
+static const struct file_operations drm_stub_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_stub_open,
+ .llseek = noop_llseek,
+};
+
+static int __init drm_core_init(void)
+{
+ int ret = -ENOMEM;
+
+ drm_global_init();
+ idr_init(&drm_minors_idr);
+
+ if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
+ goto err_p1;
+
+ drm_class = drm_sysfs_create(THIS_MODULE, "drm");
+ if (IS_ERR(drm_class)) {
+ printk(KERN_ERR "DRM: Error creating drm class.\n");
+ ret = PTR_ERR(drm_class);
+ goto err_p2;
+ }
+
+ drm_proc_root = proc_mkdir("dri", NULL);
+ if (!drm_proc_root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ drm_debugfs_root = debugfs_create_dir("dri", NULL);
+ if (!drm_debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ DRM_INFO("Initialized %s %d.%d.%d %s\n",
+ CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+ return 0;
+err_p3:
+ drm_sysfs_destroy();
+err_p2:
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+err_p1:
+ return ret;
+}
+
+static void __exit drm_core_exit(void)
+{
+ remove_proc_entry("dri", NULL);
+ debugfs_remove(drm_debugfs_root);
+ drm_sysfs_destroy();
+
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_remove_all(&drm_minors_idr);
+ idr_destroy(&drm_minors_idr);
+}
+
+module_init(drm_core_init);
+module_exit(drm_core_exit);
+
+/**
+ * Copy and IOCTL return string to user space
+ */
+static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+{
+ int len;
+
+ /* don't overflow userbuf */
+ len = strlen(value);
+ if (len > *buf_len)
+ len = *buf_len;
+
+ /* let userspace know exact length of driver value (which could be
+ * larger than the userspace-supplied buffer) */
+ *buf_len = strlen(value);
+
+ /* finally, try filling in the userbuf */
+ if (len && buf)
+ if (copy_to_user(buf, value, len))
+ return -EFAULT;
+ return 0;
+}
+
+/**
+ * Get version information
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_version structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Fills in the version information in \p arg.
+ */
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_version *version = data;
+ int err;
+
+ version->version_major = dev->driver->major;
+ version->version_minor = dev->driver->minor;
+ version->version_patchlevel = dev->driver->patchlevel;
+ err = drm_copy_field(version->name, &version->name_len,
+ dev->driver->name);
+ if (!err)
+ err = drm_copy_field(version->date, &version->date_len,
+ dev->driver->date);
+ if (!err)
+ err = drm_copy_field(version->desc, &version->desc_len,
+ dev->driver->desc);
+
+ return err;
+}
+
+/**
+ * Called whenever a process performs an ioctl on /dev/drm.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ *
+ * Looks up the ioctl function in the ::ioctls table, checking for root
+ * previleges if so required, and dispatches to the respective function.
+ */
+long drm_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev;
+ struct drm_ioctl_desc *ioctl;
+ drm_ioctl_t *func;
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ int retcode = -EINVAL;
+ char stack_kdata[128];
+ char *kdata = NULL;
+ unsigned int usize, asize;
+
+ dev = file_priv->minor->dev;
+ atomic_inc(&dev->ioctl_count);
+ atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
+ ++file_priv->ioctl_count;
+
+ DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
+ task_pid_nr(current), cmd, nr,
+ (long)old_encode_dev(file_priv->minor->device),
+ file_priv->authenticated);
+
+ if ((nr >= DRM_CORE_IOCTL_COUNT) &&
+ ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
+ goto err_i1;
+ if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
+ (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
+ u32 drv_size;
+ ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
+ drv_size = _IOC_SIZE(ioctl->cmd_drv);
+ usize = asize = _IOC_SIZE(cmd);
+ if (drv_size > asize)
+ asize = drv_size;
+ }
+ else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
+ ioctl = &drm_ioctls[nr];
+ cmd = ioctl->cmd;
+ usize = asize = _IOC_SIZE(cmd);
+ } else
+ goto err_i1;
+
+ /* Do not trust userspace, use our own definition */
+ func = ioctl->func;
+ /* is there a local override? */
+ if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
+ func = dev->driver->dma_ioctl;
+
+ if (!func) {
+ DRM_DEBUG("no function\n");
+ retcode = -EINVAL;
+ } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
+ ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
+ ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+ (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
+ retcode = -EACCES;
+ } else {
+ if (cmd & (IOC_IN | IOC_OUT)) {
+ if (asize <= sizeof(stack_kdata)) {
+ kdata = stack_kdata;
+ } else {
+ kdata = kmalloc(asize, GFP_KERNEL);
+ if (!kdata) {
+ retcode = -ENOMEM;
+ goto err_i1;
+ }
+ }
+ }
+
+ if (cmd & IOC_IN) {
+ if (copy_from_user(kdata, (void __user *)arg,
+ usize) != 0) {
+ retcode = -EFAULT;
+ goto err_i1;
+ }
+ } else
+ memset(kdata, 0, usize);
+
+ if (ioctl->flags & DRM_UNLOCKED)
+ retcode = func(dev, kdata, file_priv);
+ else {
+ mutex_lock(&drm_global_mutex);
+ retcode = func(dev, kdata, file_priv);
+ mutex_unlock(&drm_global_mutex);
+ }
+
+ if (cmd & IOC_OUT) {
+ if (copy_to_user((void __user *)arg, kdata,
+ usize) != 0)
+ retcode = -EFAULT;
+ }
+ }
+
+ err_i1:
+ if (kdata != stack_kdata)
+ kfree(kdata);
+ atomic_dec(&dev->ioctl_count);
+ if (retcode)
+ DRM_DEBUG("ret = %x\n", retcode);
+ return retcode;
+}
+
+EXPORT_SYMBOL(drm_ioctl);
+
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
+{
+ struct drm_map_list *entry;
+
+ list_for_each_entry(entry, &dev->maplist, head) {
+ if (entry->map && entry->map->type == _DRM_SHM &&
+ (entry->map->flags & _DRM_CONTAINS_LOCK)) {
+ return entry->map;
+ }
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(drm_getsarea);
--- /dev/null
+/*
+ * Copyright (c) 2006 Luc Verhaegen (quirks list)
+ * Copyright (c) 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
+ * FB layer.
+ * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "drmP.h"
+#include "drm_edid.h"
+#include "drm_edid_modes.h"
+
+#define version_greater(edid, maj, min) \
+ (((edid)->version > (maj)) || \
+ ((edid)->version == (maj) && (edid)->revision > (min)))
+
+#define EDID_EST_TIMINGS 16
+#define EDID_STD_TIMINGS 8
+#define EDID_DETAILED_TIMINGS 4
+
+/*
+ * EDID blocks out in the wild have a variety of bugs, try to collect
+ * them here (note that userspace may work around broken monitors first,
+ * but fixes should make their way here so that the kernel "just works"
+ * on as many displays as possible).
+ */
+
+/* First detailed mode wrong, use largest 60Hz mode */
+#define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
+/* Reported 135MHz pixel clock is too high, needs adjustment */
+#define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
+/* Prefer the largest mode at 75 Hz */
+#define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
+/* Detail timing is in cm not mm */
+#define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
+/* Detailed timing descriptors have bogus size values, so just take the
+ * maximum size and use that.
+ */
+#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
+/* Monitor forgot to set the first detailed is preferred bit. */
+#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
+/* use +hsync +vsync for detailed mode */
+#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
+
+struct detailed_mode_closure {
+ struct drm_connector *connector;
+ struct edid *edid;
+ bool preferred;
+ u32 quirks;
+ int modes;
+};
+
+#define LEVEL_DMT 0
+#define LEVEL_GTF 1
+#define LEVEL_GTF2 2
+#define LEVEL_CVT 3
+
+static struct edid_quirk {
+ char *vendor;
+ int product_id;
+ u32 quirks;
+} edid_quirk_list[] = {
+ /* Acer AL1706 */
+ { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Acer F51 */
+ { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Unknown Acer */
+ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Belinea 10 15 55 */
+ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
+ { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Envision Peripherals, Inc. EN-7100e */
+ { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
+ /* Envision EN2028 */
+ { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Funai Electronics PM36B */
+ { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
+ EDID_QUIRK_DETAILED_IN_CM },
+
+ /* LG Philips LCD LP154W01-A5 */
+ { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+ { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+
+ /* Philips 107p5 CRT */
+ { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Proview AY765C */
+ { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Samsung SyncMaster 205BW. Note: irony */
+ { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
+ /* Samsung SyncMaster 22[5-6]BW */
+ { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
+ { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+};
+
+/*** DDC fetch and block validation ***/
+
+static const u8 edid_header[] = {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
+};
+
+/*
+ * Sanity check the EDID block (base or extension). Return 0 if the block
+ * doesn't check out, or 1 if it's valid.
+ */
+static bool
+drm_edid_block_valid(u8 *raw_edid)
+{
+ int i;
+ u8 csum = 0;
+ struct edid *edid = (struct edid *)raw_edid;
+
+ if (raw_edid[0] == 0x00) {
+ int score = 0;
+
+ for (i = 0; i < sizeof(edid_header); i++)
+ if (raw_edid[i] == edid_header[i])
+ score++;
+
+ if (score == 8) ;
+ else if (score >= 6) {
+ DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
+ memcpy(raw_edid, edid_header, sizeof(edid_header));
+ } else {
+ goto bad;
+ }
+ }
+
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+ if (csum) {
+ DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
+
+ /* allow CEA to slide through, switches mangle this */
+ if (raw_edid[0] != 0x02)
+ goto bad;
+ }
+
+ /* per-block-type checks */
+ switch (raw_edid[0]) {
+ case 0: /* base */
+ if (edid->version != 1) {
+ DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
+ goto bad;
+ }
+
+ if (edid->revision > 4)
+ DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
+ break;
+
+ default:
+ break;
+ }
+
+ return 1;
+
+bad:
+ if (raw_edid) {
+ DRM_ERROR("Raw EDID:\n");
+ print_hex_dump_bytes(KERN_ERR, DUMP_PREFIX_NONE, raw_edid, EDID_LENGTH);
+ printk("\n");
+ }
+ return 0;
+}
+
+/**
+ * drm_edid_is_valid - sanity check EDID data
+ * @edid: EDID data
+ *
+ * Sanity-check an entire EDID record (including extensions)
+ */
+bool drm_edid_is_valid(struct edid *edid)
+{
+ int i;
+ u8 *raw = (u8 *)edid;
+
+ if (!edid)
+ return false;
+
+ for (i = 0; i <= edid->extensions; i++)
+ if (!drm_edid_block_valid(raw + i * EDID_LENGTH))
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL(drm_edid_is_valid);
+
+#define DDC_ADDR 0x50
+#define DDC_SEGMENT_ADDR 0x30
+/**
+ * Get EDID information via I2C.
+ *
+ * \param adapter : i2c device adaptor
+ * \param buf : EDID data buffer to be filled
+ * \param len : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Try to fetch EDID information by calling i2c driver function.
+ */
+static int
+drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
+ int block, int len)
+{
+ unsigned char start = block * EDID_LENGTH;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = DDC_ADDR,
+ .flags = 0,
+ .len = 1,
+ .buf = &start,
+ }, {
+ .addr = DDC_ADDR,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = buf,
+ }
+ };
+
+ if (i2c_transfer(adapter, msgs, 2) == 2)
+ return 0;
+
+ return -1;
+}
+
+static u8 *
+drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
+{
+ int i, j = 0, valid_extensions = 0;
+ u8 *block, *new;
+
+ if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
+ return NULL;
+
+ /* base block fetch */
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
+ goto out;
+ if (drm_edid_block_valid(block))
+ break;
+ }
+ if (i == 4)
+ goto carp;
+
+ /* if there's no extensions, we're done */
+ if (block[0x7e] == 0)
+ return block;
+
+ new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
+ if (!new)
+ goto out;
+ block = new;
+
+ for (j = 1; j <= block[0x7e]; j++) {
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter,
+ block + (valid_extensions + 1) * EDID_LENGTH,
+ j, EDID_LENGTH))
+ goto out;
+ if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH)) {
+ valid_extensions++;
+ break;
+ }
+ }
+ if (i == 4)
+ dev_warn(connector->dev->dev,
+ "%s: Ignoring invalid EDID block %d.\n",
+ drm_get_connector_name(connector), j);
+ }
+
+ if (valid_extensions != block[0x7e]) {
+ block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
+ block[0x7e] = valid_extensions;
+ new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
+ if (!new)
+ goto out;
+ block = new;
+ }
+
+ return block;
+
+carp:
+ dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
+ drm_get_connector_name(connector), j);
+
+out:
+ kfree(block);
+ return NULL;
+}
+
+/**
+ * Probe DDC presence.
+ *
+ * \param adapter : i2c device adaptor
+ * \return 1 on success
+ */
+static bool
+drm_probe_ddc(struct i2c_adapter *adapter)
+{
+ unsigned char out;
+
+ return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
+}
+
+/**
+ * drm_get_edid - get EDID data, if available
+ * @connector: connector we're probing
+ * @adapter: i2c adapter to use for DDC
+ *
+ * Poke the given i2c channel to grab EDID data if possible. If found,
+ * attach it to the connector.
+ *
+ * Return edid data or NULL if we couldn't find any.
+ */
+struct edid *drm_get_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter)
+{
+ struct edid *edid = NULL;
+
+ if (drm_probe_ddc(adapter))
+ edid = (struct edid *)drm_do_get_edid(connector, adapter);
+
+ connector->display_info.raw_edid = (char *)edid;
+
+ return edid;
+
+}
+EXPORT_SYMBOL(drm_get_edid);
+
+/*** EDID parsing ***/
+
+/**
+ * edid_vendor - match a string against EDID's obfuscated vendor field
+ * @edid: EDID to match
+ * @vendor: vendor string
+ *
+ * Returns true if @vendor is in @edid, false otherwise
+ */
+static bool edid_vendor(struct edid *edid, char *vendor)
+{
+ char edid_vendor[3];
+
+ edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
+ edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
+ ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
+ edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
+
+ return !strncmp(edid_vendor, vendor, 3);
+}
+
+/**
+ * edid_get_quirks - return quirk flags for a given EDID
+ * @edid: EDID to process
+ *
+ * This tells subsequent routines what fixes they need to apply.
+ */
+static u32 edid_get_quirks(struct edid *edid)
+{
+ struct edid_quirk *quirk;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
+ quirk = &edid_quirk_list[i];
+
+ if (edid_vendor(edid, quirk->vendor) &&
+ (EDID_PRODUCT_ID(edid) == quirk->product_id))
+ return quirk->quirks;
+ }
+
+ return 0;
+}
+
+#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
+#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
+
+/**
+ * edid_fixup_preferred - set preferred modes based on quirk list
+ * @connector: has mode list to fix up
+ * @quirks: quirks list
+ *
+ * Walk the mode list for @connector, clearing the preferred status
+ * on existing modes and setting it anew for the right mode ala @quirks.
+ */
+static void edid_fixup_preferred(struct drm_connector *connector,
+ u32 quirks)
+{
+ struct drm_display_mode *t, *cur_mode, *preferred_mode;
+ int target_refresh = 0;
+
+ if (list_empty(&connector->probed_modes))
+ return;
+
+ if (quirks & EDID_QUIRK_PREFER_LARGE_60)
+ target_refresh = 60;
+ if (quirks & EDID_QUIRK_PREFER_LARGE_75)
+ target_refresh = 75;
+
+ preferred_mode = list_first_entry(&connector->probed_modes,
+ struct drm_display_mode, head);
+
+ list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
+ cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+
+ if (cur_mode == preferred_mode)
+ continue;
+
+ /* Largest mode is preferred */
+ if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
+ preferred_mode = cur_mode;
+
+ /* At a given size, try to get closest to target refresh */
+ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
+ MODE_REFRESH_DIFF(cur_mode, target_refresh) <
+ MODE_REFRESH_DIFF(preferred_mode, target_refresh)) {
+ preferred_mode = cur_mode;
+ }
+ }
+
+ preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
+}
+
+struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
+ int hsize, int vsize, int fresh)
+{
+ int i;
+ struct drm_display_mode *ptr, *mode;
+
+ mode = NULL;
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hsize == ptr->hdisplay &&
+ vsize == ptr->vdisplay &&
+ fresh == drm_mode_vrefresh(ptr)) {
+ /* get the expected default mode */
+ mode = drm_mode_duplicate(dev, ptr);
+ break;
+ }
+ }
+ return mode;
+}
+EXPORT_SYMBOL(drm_mode_find_dmt);
+
+typedef void detailed_cb(struct detailed_timing *timing, void *closure);
+
+static void
+cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
+{
+ int i, n = 0;
+ u8 rev = ext[0x01], d = ext[0x02];
+ u8 *det_base = ext + d;
+
+ switch (rev) {
+ case 0:
+ /* can't happen */
+ return;
+ case 1:
+ /* have to infer how many blocks we have, check pixel clock */
+ for (i = 0; i < 6; i++)
+ if (det_base[18*i] || det_base[18*i+1])
+ n++;
+ break;
+ default:
+ /* explicit count */
+ n = min(ext[0x03] & 0x0f, 6);
+ break;
+ }
+
+ for (i = 0; i < n; i++)
+ cb((struct detailed_timing *)(det_base + 18 * i), closure);
+}
+
+static void
+vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
+{
+ unsigned int i, n = min((int)ext[0x02], 6);
+ u8 *det_base = ext + 5;
+
+ if (ext[0x01] != 1)
+ return; /* unknown version */
+
+ for (i = 0; i < n; i++)
+ cb((struct detailed_timing *)(det_base + 18 * i), closure);
+}
+
+static void
+drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
+{
+ int i;
+ struct edid *edid = (struct edid *)raw_edid;
+
+ if (edid == NULL)
+ return;
+
+ for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
+ cb(&(edid->detailed_timings[i]), closure);
+
+ for (i = 1; i <= raw_edid[0x7e]; i++) {
+ u8 *ext = raw_edid + (i * EDID_LENGTH);
+ switch (*ext) {
+ case CEA_EXT:
+ cea_for_each_detailed_block(ext, cb, closure);
+ break;
+ case VTB_EXT:
+ vtb_for_each_detailed_block(ext, cb, closure);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static void
+is_rb(struct detailed_timing *t, void *data)
+{
+ u8 *r = (u8 *)t;
+ if (r[3] == EDID_DETAIL_MONITOR_RANGE)
+ if (r[15] & 0x10)
+ *(bool *)data = true;
+}
+
+/* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
+static bool
+drm_monitor_supports_rb(struct edid *edid)
+{
+ if (edid->revision >= 4) {
+ bool ret;
+ drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
+ return ret;
+ }
+
+ return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
+}
+
+static void
+find_gtf2(struct detailed_timing *t, void *data)
+{
+ u8 *r = (u8 *)t;
+ if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
+ *(u8 **)data = r;
+}
+
+/* Secondary GTF curve kicks in above some break frequency */
+static int
+drm_gtf2_hbreak(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[12] * 2) : 0;
+}
+
+static int
+drm_gtf2_2c(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[13] : 0;
+}
+
+static int
+drm_gtf2_m(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[15] << 8) + r[14] : 0;
+}
+
+static int
+drm_gtf2_k(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[16] : 0;
+}
+
+static int
+drm_gtf2_2j(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[17] : 0;
+}
+
+/**
+ * standard_timing_level - get std. timing level(CVT/GTF/DMT)
+ * @edid: EDID block to scan
+ */
+static int standard_timing_level(struct edid *edid)
+{
+ if (edid->revision >= 2) {
+ if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
+ return LEVEL_CVT;
+ if (drm_gtf2_hbreak(edid))
+ return LEVEL_GTF2;
+ return LEVEL_GTF;
+ }
+ return LEVEL_DMT;
+}
+
+/*
+ * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
+ * monitors fill with ascii space (0x20) instead.
+ */
+static int
+bad_std_timing(u8 a, u8 b)
+{
+ return (a == 0x00 && b == 0x00) ||
+ (a == 0x01 && b == 0x01) ||
+ (a == 0x20 && b == 0x20);
+}
+
+/**
+ * drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @t: standard timing params
+ * @timing_level: standard timing level
+ *
+ * Take the standard timing params (in this case width, aspect, and refresh)
+ * and convert them into a real mode using CVT/GTF/DMT.
+ */
+static struct drm_display_mode *
+drm_mode_std(struct drm_connector *connector, struct edid *edid,
+ struct std_timing *t, int revision)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *m, *mode = NULL;
+ int hsize, vsize;
+ int vrefresh_rate;
+ unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
+ >> EDID_TIMING_ASPECT_SHIFT;
+ unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
+ >> EDID_TIMING_VFREQ_SHIFT;
+ int timing_level = standard_timing_level(edid);
+
+ if (bad_std_timing(t->hsize, t->vfreq_aspect))
+ return NULL;
+
+ /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
+ hsize = t->hsize * 8 + 248;
+ /* vrefresh_rate = vfreq + 60 */
+ vrefresh_rate = vfreq + 60;
+ /* the vdisplay is calculated based on the aspect ratio */
+ if (aspect_ratio == 0) {
+ if (revision < 3)
+ vsize = hsize;
+ else
+ vsize = (hsize * 10) / 16;
+ } else if (aspect_ratio == 1)
+ vsize = (hsize * 3) / 4;
+ else if (aspect_ratio == 2)
+ vsize = (hsize * 4) / 5;
+ else
+ vsize = (hsize * 9) / 16;
+
+ /* HDTV hack, part 1 */
+ if (vrefresh_rate == 60 &&
+ ((hsize == 1360 && vsize == 765) ||
+ (hsize == 1368 && vsize == 769))) {
+ hsize = 1366;
+ vsize = 768;
+ }
+
+ /*
+ * If this connector already has a mode for this size and refresh
+ * rate (because it came from detailed or CVT info), use that
+ * instead. This way we don't have to guess at interlace or
+ * reduced blanking.
+ */
+ list_for_each_entry(m, &connector->probed_modes, head)
+ if (m->hdisplay == hsize && m->vdisplay == vsize &&
+ drm_mode_vrefresh(m) == vrefresh_rate)
+ return NULL;
+
+ /* HDTV hack, part 2 */
+ if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
+ mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
+ false);
+ mode->hdisplay = 1366;
+ mode->hsync_start = mode->hsync_start - 1;
+ mode->hsync_end = mode->hsync_end - 1;
+ return mode;
+ }
+
+ /* check whether it can be found in default mode table */
+ mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate);
+ if (mode)
+ return mode;
+
+ switch (timing_level) {
+ case LEVEL_DMT:
+ break;
+ case LEVEL_GTF:
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ break;
+ case LEVEL_GTF2:
+ /*
+ * This is potentially wrong if there's ever a monitor with
+ * more than one ranges section, each claiming a different
+ * secondary GTF curve. Please don't do that.
+ */
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
+ kfree(mode);
+ mode = drm_gtf_mode_complex(dev, hsize, vsize,
+ vrefresh_rate, 0, 0,
+ drm_gtf2_m(edid),
+ drm_gtf2_2c(edid),
+ drm_gtf2_k(edid),
+ drm_gtf2_2j(edid));
+ }
+ break;
+ case LEVEL_CVT:
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ break;
+ }
+ return mode;
+}
+
+/*
+ * EDID is delightfully ambiguous about how interlaced modes are to be
+ * encoded. Our internal representation is of frame height, but some
+ * HDTV detailed timings are encoded as field height.
+ *
+ * The format list here is from CEA, in frame size. Technically we
+ * should be checking refresh rate too. Whatever.
+ */
+static void
+drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
+ struct detailed_pixel_timing *pt)
+{
+ int i;
+ static const struct {
+ int w, h;
+ } cea_interlaced[] = {
+ { 1920, 1080 },
+ { 720, 480 },
+ { 1440, 480 },
+ { 2880, 480 },
+ { 720, 576 },
+ { 1440, 576 },
+ { 2880, 576 },
+ };
+
+ if (!(pt->misc & DRM_EDID_PT_INTERLACED))
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
+ if ((mode->hdisplay == cea_interlaced[i].w) &&
+ (mode->vdisplay == cea_interlaced[i].h / 2)) {
+ mode->vdisplay *= 2;
+ mode->vsync_start *= 2;
+ mode->vsync_end *= 2;
+ mode->vtotal *= 2;
+ mode->vtotal |= 1;
+ }
+ }
+
+ mode->flags |= DRM_MODE_FLAG_INTERLACE;
+}
+
+/**
+ * drm_mode_detailed - create a new mode from an EDID detailed timing section
+ * @dev: DRM device (needed to create new mode)
+ * @edid: EDID block
+ * @timing: EDID detailed timing info
+ * @quirks: quirks to apply
+ *
+ * An EDID detailed timing block contains enough info for us to create and
+ * return a new struct drm_display_mode.
+ */
+static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
+ struct edid *edid,
+ struct detailed_timing *timing,
+ u32 quirks)
+{
+ struct drm_display_mode *mode;
+ struct detailed_pixel_timing *pt = &timing->data.pixel_data;
+ unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
+ unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
+ unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
+ unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
+ unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
+ unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
+ unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+ unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
+
+ /* ignore tiny modes */
+ if (hactive < 64 || vactive < 64)
+ return NULL;
+
+ if (pt->misc & DRM_EDID_PT_STEREO) {
+ printk(KERN_WARNING "stereo mode not supported\n");
+ return NULL;
+ }
+ if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
+ printk(KERN_WARNING "composite sync not supported\n");
+ }
+
+ /* it is incorrect if hsync/vsync width is zero */
+ if (!hsync_pulse_width || !vsync_pulse_width) {
+ DRM_DEBUG_KMS("Incorrect Detailed timing. "
+ "Wrong Hsync/Vsync pulse width\n");
+ return NULL;
+ }
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return NULL;
+
+ mode->type = DRM_MODE_TYPE_DRIVER;
+
+ if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
+ timing->pixel_clock = cpu_to_le16(1088);
+
+ mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
+
+ mode->hdisplay = hactive;
+ mode->hsync_start = mode->hdisplay + hsync_offset;
+ mode->hsync_end = mode->hsync_start + hsync_pulse_width;
+ mode->htotal = mode->hdisplay + hblank;
+
+ mode->vdisplay = vactive;
+ mode->vsync_start = mode->vdisplay + vsync_offset;
+ mode->vsync_end = mode->vsync_start + vsync_pulse_width;
+ mode->vtotal = mode->vdisplay + vblank;
+
+ /* Some EDIDs have bogus h/vtotal values */
+ if (mode->hsync_end > mode->htotal)
+ mode->htotal = mode->hsync_end + 1;
+ if (mode->vsync_end > mode->vtotal)
+ mode->vtotal = mode->vsync_end + 1;
+
+ drm_mode_do_interlace_quirk(mode, pt);
+
+ drm_mode_set_name(mode);
+
+ if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
+ pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
+ }
+
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+
+ mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+ mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
+
+ if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
+ mode->width_mm *= 10;
+ mode->height_mm *= 10;
+ }
+
+ if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
+ mode->width_mm = edid->width_cm * 10;
+ mode->height_mm = edid->height_cm * 10;
+ }
+
+ return mode;
+}
+
+static bool
+mode_is_rb(struct drm_display_mode *mode)
+{
+ return (mode->htotal - mode->hdisplay == 160) &&
+ (mode->hsync_end - mode->hdisplay == 80) &&
+ (mode->hsync_end - mode->hsync_start == 32) &&
+ (mode->vsync_start - mode->vdisplay == 3);
+}
+
+static bool
+mode_in_hsync_range(struct drm_display_mode *mode, struct edid *edid, u8 *t)
+{
+ int hsync, hmin, hmax;
+
+ hmin = t[7];
+ if (edid->revision >= 4)
+ hmin += ((t[4] & 0x04) ? 255 : 0);
+ hmax = t[8];
+ if (edid->revision >= 4)
+ hmax += ((t[4] & 0x08) ? 255 : 0);
+ hsync = drm_mode_hsync(mode);
+
+ return (hsync <= hmax && hsync >= hmin);
+}
+
+static bool
+mode_in_vsync_range(struct drm_display_mode *mode, struct edid *edid, u8 *t)
+{
+ int vsync, vmin, vmax;
+
+ vmin = t[5];
+ if (edid->revision >= 4)
+ vmin += ((t[4] & 0x01) ? 255 : 0);
+ vmax = t[6];
+ if (edid->revision >= 4)
+ vmax += ((t[4] & 0x02) ? 255 : 0);
+ vsync = drm_mode_vrefresh(mode);
+
+ return (vsync <= vmax && vsync >= vmin);
+}
+
+static u32
+range_pixel_clock(struct edid *edid, u8 *t)
+{
+ /* unspecified */
+ if (t[9] == 0 || t[9] == 255)
+ return 0;
+
+ /* 1.4 with CVT support gives us real precision, yay */
+ if (edid->revision >= 4 && t[10] == 0x04)
+ return (t[9] * 10000) - ((t[12] >> 2) * 250);
+
+ /* 1.3 is pathetic, so fuzz up a bit */
+ return t[9] * 10000 + 5001;
+}
+
+static bool
+mode_in_range(struct drm_display_mode *mode, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ u32 max_clock;
+ u8 *t = (u8 *)timing;
+
+ if (!mode_in_hsync_range(mode, edid, t))
+ return false;
+
+ if (!mode_in_vsync_range(mode, edid, t))
+ return false;
+
+ if ((max_clock = range_pixel_clock(edid, t)))
+ if (mode->clock > max_clock)
+ return false;
+
+ /* 1.4 max horizontal check */
+ if (edid->revision >= 4 && t[10] == 0x04)
+ if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
+ return false;
+
+ if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
+ return false;
+
+ return true;
+}
+
+/*
+ * XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will
+ * need to account for them.
+ */
+static int
+drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ if (mode_in_range(drm_dmt_modes + i, edid, timing)) {
+ newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ return modes;
+}
+
+static void
+do_inferred_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ int gtf = (closure->edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
+
+ if (gtf && data->type == EDID_DETAIL_MONITOR_RANGE)
+ closure->modes += drm_gtf_modes_for_range(closure->connector,
+ closure->edid,
+ timing);
+}
+
+static int
+add_inferred_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
+ &closure);
+
+ return closure.modes;
+}
+
+static int
+drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
+{
+ int i, j, m, modes = 0;
+ struct drm_display_mode *mode;
+ u8 *est = ((u8 *)timing) + 5;
+
+ for (i = 0; i < 6; i++) {
+ for (j = 7; j > 0; j--) {
+ m = (i * 8) + (7 - j);
+ if (m >= ARRAY_SIZE(est3_modes))
+ break;
+ if (est[i] & (1 << j)) {
+ mode = drm_mode_find_dmt(connector->dev,
+ est3_modes[m].w,
+ est3_modes[m].h,
+ est3_modes[m].r
+ /*, est3_modes[m].rb */);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static void
+do_established_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+
+ if (data->type == EDID_DETAIL_EST_TIMINGS)
+ closure->modes += drm_est3_modes(closure->connector, timing);
+}
+
+/**
+ * add_established_modes - get est. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Each EDID block contains a bitmap of the supported "established modes" list
+ * (defined above). Tease them out and add them to the global modes list.
+ */
+static int
+add_established_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ unsigned long est_bits = edid->established_timings.t1 |
+ (edid->established_timings.t2 << 8) |
+ ((edid->established_timings.mfg_rsvd & 0x80) << 9);
+ int i, modes = 0;
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ for (i = 0; i <= EDID_EST_TIMINGS; i++) {
+ if (est_bits & (1<<i)) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid,
+ do_established_modes, &closure);
+
+ return modes + closure.modes;
+}
+
+static void
+do_standard_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ struct drm_connector *connector = closure->connector;
+ struct edid *edid = closure->edid;
+
+ if (data->type == EDID_DETAIL_STD_MODES) {
+ int i;
+ for (i = 0; i < 6; i++) {
+ struct std_timing *std;
+ struct drm_display_mode *newmode;
+
+ std = &data->data.timings[i];
+ newmode = drm_mode_std(connector, edid, std,
+ edid->revision);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ closure->modes++;
+ }
+ }
+ }
+}
+
+/**
+ * add_standard_modes - get std. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Standard modes can be calculated using the appropriate standard (DMT,
+ * GTF or CVT. Grab them from @edid and add them to the list.
+ */
+static int
+add_standard_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int i, modes = 0;
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ for (i = 0; i < EDID_STD_TIMINGS; i++) {
+ struct drm_display_mode *newmode;
+
+ newmode = drm_mode_std(connector, edid,
+ &edid->standard_timings[i],
+ edid->revision);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
+ &closure);
+
+ /* XXX should also look for standard codes in VTB blocks */
+
+ return modes + closure.modes;
+}
+
+static int drm_cvt_modes(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, j, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+ struct cvt_timing *cvt;
+ const int rates[] = { 60, 85, 75, 60, 50 };
+ const u8 empty[3] = { 0, 0, 0 };
+
+ for (i = 0; i < 4; i++) {
+ int uninitialized_var(width), height;
+ cvt = &(timing->data.other_data.data.cvt[i]);
+
+ if (!memcmp(cvt->code, empty, 3))
+ continue;
+
+ height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
+ switch (cvt->code[1] & 0x0c) {
+ case 0x00:
+ width = height * 4 / 3;
+ break;
+ case 0x04:
+ width = height * 16 / 9;
+ break;
+ case 0x08:
+ width = height * 16 / 10;
+ break;
+ case 0x0c:
+ width = height * 15 / 9;
+ break;
+ }
+
+ for (j = 1; j < 5; j++) {
+ if (cvt->code[2] & (1 << j)) {
+ newmode = drm_cvt_mode(dev, width, height,
+ rates[j], j == 0,
+ false, false);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static void
+do_cvt_mode(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+
+ if (data->type == EDID_DETAIL_CVT_3BYTE)
+ closure->modes += drm_cvt_modes(closure->connector, timing);
+}
+
+static int
+add_cvt_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ if (version_greater(edid, 1, 2))
+ drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
+
+ /* XXX should also look for CVT codes in VTB blocks */
+
+ return closure.modes;
+}
+
+static void
+do_detailed_mode(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct drm_display_mode *newmode;
+
+ if (timing->pixel_clock) {
+ newmode = drm_mode_detailed(closure->connector->dev,
+ closure->edid, timing,
+ closure->quirks);
+ if (!newmode)
+ return;
+
+ if (closure->preferred)
+ newmode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_probed_add(closure->connector, newmode);
+ closure->modes++;
+ closure->preferred = 0;
+ }
+}
+
+/*
+ * add_detailed_modes - Add modes from detailed timings
+ * @connector: attached connector
+ * @edid: EDID block to scan
+ * @quirks: quirks to apply
+ */
+static int
+add_detailed_modes(struct drm_connector *connector, struct edid *edid,
+ u32 quirks)
+{
+ struct detailed_mode_closure closure = {
+ connector,
+ edid,
+ 1,
+ quirks,
+ 0
+ };
+
+ if (closure.preferred && !version_greater(edid, 1, 3))
+ closure.preferred =
+ (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
+
+ drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
+
+ return closure.modes;
+}
+
+#define HDMI_IDENTIFIER 0x000C03
+#define AUDIO_BLOCK 0x01
+#define VENDOR_BLOCK 0x03
+#define EDID_BASIC_AUDIO (1 << 6)
+
+/**
+ * Search EDID for CEA extension block.
+ */
+static u8 *drm_find_cea_extension(struct edid *edid)
+{
+ u8 *edid_ext = NULL;
+ int i;
+
+ /* No EDID or EDID extensions */
+ if (edid == NULL || edid->extensions == 0)
+ return NULL;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid->extensions; i++) {
+ edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
+ if (edid_ext[0] == CEA_EXT)
+ break;
+ }
+
+ if (i == edid->extensions)
+ return NULL;
+
+ return edid_ext;
+}
+
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(struct edid *edid)
+{
+ u8 *edid_ext;
+ int i, hdmi_id;
+ int start_offset, end_offset;
+ bool is_hdmi = false;
+
+ edid_ext = drm_find_cea_extension(edid);
+ if (!edid_ext)
+ goto end;
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ /*
+ * Because HDMI identifier is in Vendor Specific Block,
+ * search it from all data blocks of CEA extension.
+ */
+ for (i = start_offset; i < end_offset;
+ /* Increased by data block len */
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ /* Find vendor specific block */
+ if ((edid_ext[i] >> 5) == VENDOR_BLOCK) {
+ hdmi_id = edid_ext[i + 1] | (edid_ext[i + 2] << 8) |
+ edid_ext[i + 3] << 16;
+ /* Find HDMI identifier */
+ if (hdmi_id == HDMI_IDENTIFIER)
+ is_hdmi = true;
+ break;
+ }
+ }
+
+end:
+ return is_hdmi;
+}
+EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+
+/**
+ * drm_detect_monitor_audio - check monitor audio capability
+ *
+ * Monitor should have CEA extension block.
+ * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
+ * audio' only. If there is any audio extension block and supported
+ * audio format, assume at least 'basic audio' support, even if 'basic
+ * audio' is not defined in EDID.
+ *
+ */
+bool drm_detect_monitor_audio(struct edid *edid)
+{
+ u8 *edid_ext;
+ int i, j;
+ bool has_audio = false;
+ int start_offset, end_offset;
+
+ edid_ext = drm_find_cea_extension(edid);
+ if (!edid_ext)
+ goto end;
+
+ has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
+
+ if (has_audio) {
+ DRM_DEBUG_KMS("Monitor has basic audio support\n");
+ goto end;
+ }
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ for (i = start_offset; i < end_offset;
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ if ((edid_ext[i] >> 5) == AUDIO_BLOCK) {
+ has_audio = true;
+ for (j = 1; j < (edid_ext[i] & 0x1f); j += 3)
+ DRM_DEBUG_KMS("CEA audio format %d\n",
+ (edid_ext[i + j] >> 3) & 0xf);
+ goto end;
+ }
+ }
+end:
+ return has_audio;
+}
+EXPORT_SYMBOL(drm_detect_monitor_audio);
+
+/**
+ * drm_add_edid_modes - add modes from EDID data, if available
+ * @connector: connector we're probing
+ * @edid: edid data
+ *
+ * Add the specified modes to the connector's mode list.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int num_modes = 0;
+ u32 quirks;
+
+ if (edid == NULL) {
+ return 0;
+ }
+ if (!drm_edid_is_valid(edid)) {
+ dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return 0;
+ }
+
+ quirks = edid_get_quirks(edid);
+
+ /*
+ * EDID spec says modes should be preferred in this order:
+ * - preferred detailed mode
+ * - other detailed modes from base block
+ * - detailed modes from extension blocks
+ * - CVT 3-byte code modes
+ * - standard timing codes
+ * - established timing codes
+ * - modes inferred from GTF or CVT range information
+ *
+ * We get this pretty much right.
+ *
+ * XXX order for additional mode types in extension blocks?
+ */
+ num_modes += add_detailed_modes(connector, edid, quirks);
+ num_modes += add_cvt_modes(connector, edid);
+ num_modes += add_standard_modes(connector, edid);
+ num_modes += add_established_modes(connector, edid);
+ num_modes += add_inferred_modes(connector, edid);
+
+ if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
+ edid_fixup_preferred(connector, quirks);
+
+ connector->display_info.width_mm = edid->width_cm * 10;
+ connector->display_info.height_mm = edid->height_cm * 10;
+
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_edid_modes);
+
+/**
+ * drm_add_modes_noedid - add modes for the connectors without EDID
+ * @connector: connector we're probing
+ * @hdisplay: the horizontal display limit
+ * @vdisplay: the vertical display limit
+ *
+ * Add the specified modes to the connector's mode list. Only when the
+ * hdisplay/vdisplay is not beyond the given limit, it will be added.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_modes_noedid(struct drm_connector *connector,
+ int hdisplay, int vdisplay)
+{
+ int i, count, num_modes = 0;
+ struct drm_display_mode *mode, *ptr;
+ struct drm_device *dev = connector->dev;
+
+ count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+ if (hdisplay < 0)
+ hdisplay = 0;
+ if (vdisplay < 0)
+ vdisplay = 0;
+
+ for (i = 0; i < count; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hdisplay && vdisplay) {
+ /*
+ * Only when two are valid, they will be used to check
+ * whether the mode should be added to the mode list of
+ * the connector.
+ */
+ if (ptr->hdisplay > hdisplay ||
+ ptr->vdisplay > vdisplay)
+ continue;
+ }
+ if (drm_mode_vrefresh(ptr) > 61)
+ continue;
+ mode = drm_mode_duplicate(dev, ptr);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ num_modes++;
+ }
+ }
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_modes_noedid);
--- /dev/null
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drm_encoder_slave.h"
+
+/**
+ * drm_i2c_encoder_init - Initialize an I2C slave encoder
+ * @dev: DRM device.
+ * @encoder: Encoder to be attached to the I2C device. You aren't
+ * required to have called drm_encoder_init() before.
+ * @adap: I2C adapter that will be used to communicate with
+ * the device.
+ * @info: Information that will be used to create the I2C device.
+ * Required fields are @addr and @type.
+ *
+ * Create an I2C device on the specified bus (the module containing its
+ * driver is transparently loaded) and attach it to the specified
+ * &drm_encoder_slave. The @slave_funcs field will be initialized with
+ * the hooks provided by the slave driver.
+ *
+ * If @info->platform_data is non-NULL it will be used as the initial
+ * slave config.
+ *
+ * Returns 0 on success or a negative errno on failure, in particular,
+ * -ENODEV is returned when no matching driver is found.
+ */
+int drm_i2c_encoder_init(struct drm_device *dev,
+ struct drm_encoder_slave *encoder,
+ struct i2c_adapter *adap,
+ const struct i2c_board_info *info)
+{
+ char modalias[sizeof(I2C_MODULE_PREFIX)
+ + I2C_NAME_SIZE];
+ struct module *module = NULL;
+ struct i2c_client *client;
+ struct drm_i2c_encoder_driver *encoder_drv;
+ int err = 0;
+
+ snprintf(modalias, sizeof(modalias),
+ "%s%s", I2C_MODULE_PREFIX, info->type);
+ request_module(modalias);
+
+ client = i2c_new_device(adap, info);
+ if (!client) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!client->driver) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ module = client->driver->driver.owner;
+ if (!try_module_get(module)) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ encoder->bus_priv = client;
+
+ encoder_drv = to_drm_i2c_encoder_driver(client->driver);
+
+ err = encoder_drv->encoder_init(client, dev, encoder);
+ if (err)
+ goto fail_unregister;
+
+ if (info->platform_data)
+ encoder->slave_funcs->set_config(&encoder->base,
+ info->platform_data);
+
+ return 0;
+
+fail_unregister:
+ i2c_unregister_device(client);
+ module_put(module);
+fail:
+ return err;
+}
+EXPORT_SYMBOL(drm_i2c_encoder_init);
+
+/**
+ * drm_i2c_encoder_destroy - Unregister the I2C device backing an encoder
+ * @drm_encoder: Encoder to be unregistered.
+ *
+ * This should be called from the @destroy method of an I2C slave
+ * encoder driver once I2C access is no longer needed.
+ */
+void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
+{
+ struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
+ struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
+ struct module *module = client->driver->driver.owner;
+
+ i2c_unregister_device(client);
+ encoder->bus_priv = NULL;
+
+ module_put(module);
+}
+EXPORT_SYMBOL(drm_i2c_encoder_destroy);
--- /dev/null
+/*
+ * Copyright (c) 2006-2009 Red Hat Inc.
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ *
+ * DRM framebuffer helper functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/kernel.h>
+#include <linux/sysrq.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_fb_helper.h"
+#include "drm_crtc_helper.h"
+
+MODULE_AUTHOR("David Airlie, Jesse Barnes");
+MODULE_DESCRIPTION("DRM KMS helper");
+MODULE_LICENSE("GPL and additional rights");
+
+static LIST_HEAD(kernel_fb_helper_list);
+
+/* simple single crtc case helper function */
+int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
+{
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_connector *connector;
+ int i;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ struct drm_fb_helper_connector *fb_helper_connector;
+
+ fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL);
+ if (!fb_helper_connector)
+ goto fail;
+
+ fb_helper_connector->connector = connector;
+ fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
+ }
+ return 0;
+fail:
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ kfree(fb_helper->connector_info[i]);
+ fb_helper->connector_info[i] = NULL;
+ }
+ fb_helper->connector_count = 0;
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
+
+/**
+ * drm_fb_helper_connector_parse_command_line - parse command line for connector
+ * @connector - connector to parse line for
+ * @mode_option - per connector mode option
+ *
+ * This parses the connector specific then generic command lines for
+ * modes and options to configure the connector.
+ *
+ * This uses the same parameters as the fb modedb.c, except for extra
+ * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
+ *
+ * enable/enable Digital/disable bit at the end
+ */
+static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_connector *fb_helper_conn,
+ const char *mode_option)
+{
+ const char *name;
+ unsigned int namelen;
+ int res_specified = 0, bpp_specified = 0, refresh_specified = 0;
+ unsigned int xres = 0, yres = 0, bpp = 32, refresh = 0;
+ int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0;
+ int i;
+ enum drm_connector_force force = DRM_FORCE_UNSPECIFIED;
+ struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ struct drm_connector *connector;
+
+ if (!fb_helper_conn)
+ return false;
+ connector = fb_helper_conn->connector;
+
+ cmdline_mode = &fb_helper_conn->cmdline_mode;
+ if (!mode_option)
+ mode_option = fb_mode_option;
+
+ if (!mode_option) {
+ cmdline_mode->specified = false;
+ return false;
+ }
+
+ name = mode_option;
+ namelen = strlen(name);
+ for (i = namelen-1; i >= 0; i--) {
+ switch (name[i]) {
+ case '@':
+ namelen = i;
+ if (!refresh_specified && !bpp_specified &&
+ !yres_specified) {
+ refresh = simple_strtol(&name[i+1], NULL, 10);
+ refresh_specified = 1;
+ if (cvt || rb)
+ cvt = 0;
+ } else
+ goto done;
+ break;
+ case '-':
+ namelen = i;
+ if (!bpp_specified && !yres_specified) {
+ bpp = simple_strtol(&name[i+1], NULL, 10);
+ bpp_specified = 1;
+ if (cvt || rb)
+ cvt = 0;
+ } else
+ goto done;
+ break;
+ case 'x':
+ if (!yres_specified) {
+ yres = simple_strtol(&name[i+1], NULL, 10);
+ yres_specified = 1;
+ } else
+ goto done;
+ case '0' ... '9':
+ break;
+ case 'M':
+ if (!yres_specified)
+ cvt = 1;
+ break;
+ case 'R':
+ if (cvt)
+ rb = 1;
+ break;
+ case 'm':
+ if (!cvt)
+ margins = 1;
+ break;
+ case 'i':
+ if (!cvt)
+ interlace = 1;
+ break;
+ case 'e':
+ force = DRM_FORCE_ON;
+ break;
+ case 'D':
+ if ((connector->connector_type != DRM_MODE_CONNECTOR_DVII) &&
+ (connector->connector_type != DRM_MODE_CONNECTOR_HDMIB))
+ force = DRM_FORCE_ON;
+ else
+ force = DRM_FORCE_ON_DIGITAL;
+ break;
+ case 'd':
+ force = DRM_FORCE_OFF;
+ break;
+ default:
+ goto done;
+ }
+ }
+ if (i < 0 && yres_specified) {
+ xres = simple_strtol(name, NULL, 10);
+ res_specified = 1;
+ }
+done:
+
+ DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
+ drm_get_connector_name(connector), xres, yres,
+ (refresh) ? refresh : 60, (rb) ? " reduced blanking" :
+ "", (margins) ? " with margins" : "", (interlace) ?
+ " interlaced" : "");
+
+ if (force) {
+ const char *s;
+ switch (force) {
+ case DRM_FORCE_OFF: s = "OFF"; break;
+ case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break;
+ default:
+ case DRM_FORCE_ON: s = "ON"; break;
+ }
+
+ DRM_INFO("forcing %s connector %s\n",
+ drm_get_connector_name(connector), s);
+ connector->force = force;
+ }
+
+ if (res_specified) {
+ cmdline_mode->specified = true;
+ cmdline_mode->xres = xres;
+ cmdline_mode->yres = yres;
+ }
+
+ if (refresh_specified) {
+ cmdline_mode->refresh_specified = true;
+ cmdline_mode->refresh = refresh;
+ }
+
+ if (bpp_specified) {
+ cmdline_mode->bpp_specified = true;
+ cmdline_mode->bpp = bpp;
+ }
+ cmdline_mode->rb = rb ? true : false;
+ cmdline_mode->cvt = cvt ? true : false;
+ cmdline_mode->interlace = interlace ? true : false;
+
+ return true;
+}
+
+static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper)
+{
+ struct drm_fb_helper_connector *fb_helper_conn;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ char *option = NULL;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+
+ /* do something on return - turn off connector maybe */
+ if (fb_get_options(drm_get_connector_name(fb_helper_conn->connector), &option))
+ continue;
+
+ drm_fb_helper_connector_parse_command_line(fb_helper_conn, option);
+ }
+ return 0;
+}
+
+static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper)
+{
+ uint16_t *r_base, *g_base, *b_base;
+ int i;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ for (i = 0; i < crtc->gamma_size; i++)
+ helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i);
+}
+
+static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
+{
+ uint16_t *r_base, *g_base, *b_base;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+}
+
+int drm_fb_helper_debug_enter(struct fb_info *info)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc_helper_funcs *funcs;
+ int i;
+
+ if (list_empty(&kernel_fb_helper_list))
+ return false;
+
+ list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set =
+ &helper->crtc_info[i].mode_set;
+
+ if (!mode_set->crtc->enabled)
+ continue;
+
+ funcs = mode_set->crtc->helper_private;
+ drm_fb_helper_save_lut_atomic(mode_set->crtc, helper);
+ funcs->mode_set_base_atomic(mode_set->crtc,
+ mode_set->fb,
+ mode_set->x,
+ mode_set->y,
+ ENTER_ATOMIC_MODE_SET);
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_debug_enter);
+
+/* Find the real fb for a given fb helper CRTC */
+static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_crtc *c;
+
+ list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
+ if (crtc->base.id == c->base.id)
+ return c->fb;
+ }
+
+ return NULL;
+}
+
+int drm_fb_helper_debug_leave(struct fb_info *info)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc *crtc;
+ struct drm_crtc_helper_funcs *funcs;
+ struct drm_framebuffer *fb;
+ int i;
+
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
+ crtc = mode_set->crtc;
+ funcs = crtc->helper_private;
+ fb = drm_mode_config_fb(crtc);
+
+ if (!crtc->enabled)
+ continue;
+
+ if (!fb) {
+ DRM_ERROR("no fb to restore??\n");
+ continue;
+ }
+
+ drm_fb_helper_restore_lut_atomic(mode_set->crtc);
+ funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
+ crtc->y, LEAVE_ATOMIC_MODE_SET);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_debug_leave);
+
+bool drm_fb_helper_force_kernel_mode(void)
+{
+ int i = 0;
+ bool ret, error = false;
+ struct drm_fb_helper *helper;
+
+ if (list_empty(&kernel_fb_helper_list))
+ return false;
+
+ list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
+ ret = drm_crtc_helper_set_config(mode_set);
+ if (ret)
+ error = true;
+ }
+ }
+ return error;
+}
+
+int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
+ void *panic_str)
+{
+ printk(KERN_ERR "panic occurred, switching back to text console\n");
+ return drm_fb_helper_force_kernel_mode();
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_panic);
+
+static struct notifier_block paniced = {
+ .notifier_call = drm_fb_helper_panic,
+};
+
+/**
+ * drm_fb_helper_restore - restore the framebuffer console (kernel) config
+ *
+ * Restore's the kernel's fbcon mode, used for lastclose & panic paths.
+ */
+void drm_fb_helper_restore(void)
+{
+ bool ret;
+ ret = drm_fb_helper_force_kernel_mode();
+ if (ret == true)
+ DRM_ERROR("Failed to restore crtc configuration\n");
+}
+EXPORT_SYMBOL(drm_fb_helper_restore);
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static void drm_fb_helper_restore_work_fn(struct work_struct *ignored)
+{
+ drm_fb_helper_restore();
+}
+static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn);
+
+static void drm_fb_helper_sysrq(int dummy1)
+{
+ schedule_work(&drm_fb_helper_restore_work);
+}
+
+static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
+ .handler = drm_fb_helper_sysrq,
+ .help_msg = "force-fb(V)",
+ .action_msg = "Restore framebuffer console",
+};
+#else
+static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
+#endif
+
+static void drm_fb_helper_on(struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_crtc *crtc;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ int i, j;
+
+ /*
+ * For each CRTC in this fb, turn the crtc on then,
+ * find all associated encoders and turn them on.
+ */
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ crtc_funcs = crtc->helper_private;
+
+ if (!crtc->enabled)
+ continue;
+
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+
+ /* Walk the connectors & encoders on this fb turning them on */
+ for (j = 0; j < fb_helper->connector_count; j++) {
+ connector = fb_helper->connector_info[j]->connector;
+ connector->dpms = DRM_MODE_DPMS_ON;
+ drm_connector_property_set_value(connector,
+ dev->mode_config.dpms_property,
+ DRM_MODE_DPMS_ON);
+ }
+ /* Found a CRTC on this fb, now find encoders */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (encoder->crtc == crtc) {
+ struct drm_encoder_helper_funcs *encoder_funcs;
+
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+ }
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+static void drm_fb_helper_off(struct fb_info *info, int dpms_mode)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_crtc *crtc;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ int i, j;
+
+ /*
+ * For each CRTC in this fb, find all associated encoders
+ * and turn them off, then turn off the CRTC.
+ */
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ crtc_funcs = crtc->helper_private;
+
+ if (!crtc->enabled)
+ continue;
+
+ /* Walk the connectors on this fb and mark them off */
+ for (j = 0; j < fb_helper->connector_count; j++) {
+ connector = fb_helper->connector_info[j]->connector;
+ connector->dpms = dpms_mode;
+ drm_connector_property_set_value(connector,
+ dev->mode_config.dpms_property,
+ dpms_mode);
+ }
+ /* Found a CRTC on this fb, now find encoders */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (encoder->crtc == crtc) {
+ struct drm_encoder_helper_funcs *encoder_funcs;
+
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->dpms(encoder, dpms_mode);
+ }
+ }
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+int drm_fb_helper_blank(int blank, struct fb_info *info)
+{
+ switch (blank) {
+ /* Display: On; HSync: On, VSync: On */
+ case FB_BLANK_UNBLANK:
+ drm_fb_helper_on(info);
+ break;
+ /* Display: Off; HSync: On, VSync: On */
+ case FB_BLANK_NORMAL:
+ drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
+ break;
+ /* Display: Off; HSync: Off, VSync: On */
+ case FB_BLANK_HSYNC_SUSPEND:
+ drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
+ break;
+ /* Display: Off; HSync: On, VSync: Off */
+ case FB_BLANK_VSYNC_SUSPEND:
+ drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND);
+ break;
+ /* Display: Off; HSync: Off, VSync: Off */
+ case FB_BLANK_POWERDOWN:
+ drm_fb_helper_off(info, DRM_MODE_DPMS_OFF);
+ break;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_blank);
+
+static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper)
+{
+ int i;
+
+ for (i = 0; i < helper->connector_count; i++)
+ kfree(helper->connector_info[i]);
+ kfree(helper->connector_info);
+ for (i = 0; i < helper->crtc_count; i++)
+ kfree(helper->crtc_info[i].mode_set.connectors);
+ kfree(helper->crtc_info);
+}
+
+int drm_fb_helper_init(struct drm_device *dev,
+ struct drm_fb_helper *fb_helper,
+ int crtc_count, int max_conn_count)
+{
+ struct drm_crtc *crtc;
+ int ret = 0;
+ int i;
+
+ fb_helper->dev = dev;
+
+ INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
+
+ fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
+ if (!fb_helper->crtc_info)
+ return -ENOMEM;
+
+ fb_helper->crtc_count = crtc_count;
+ fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
+ if (!fb_helper->connector_info) {
+ kfree(fb_helper->crtc_info);
+ return -ENOMEM;
+ }
+ fb_helper->connector_count = 0;
+
+ for (i = 0; i < crtc_count; i++) {
+ fb_helper->crtc_info[i].mode_set.connectors =
+ kcalloc(max_conn_count,
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+
+ if (!fb_helper->crtc_info[i].mode_set.connectors) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+ fb_helper->crtc_info[i].mode_set.num_connectors = 0;
+ }
+
+ i = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ fb_helper->crtc_info[i].crtc_id = crtc->base.id;
+ fb_helper->crtc_info[i].mode_set.crtc = crtc;
+ i++;
+ }
+ fb_helper->conn_limit = max_conn_count;
+ return 0;
+out_free:
+ drm_fb_helper_crtc_free(fb_helper);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_fb_helper_init);
+
+void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
+{
+ if (!list_empty(&fb_helper->kernel_fb_list)) {
+ list_del(&fb_helper->kernel_fb_list);
+ if (list_empty(&kernel_fb_helper_list)) {
+ printk(KERN_INFO "drm: unregistered panic notifier\n");
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &paniced);
+ unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
+ }
+ }
+
+ drm_fb_helper_crtc_free(fb_helper);
+
+}
+EXPORT_SYMBOL(drm_fb_helper_fini);
+
+static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, u16 regno, struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_framebuffer *fb = fb_helper->fb;
+ int pindex;
+
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
+ u32 *palette;
+ u32 value;
+ /* place color in psuedopalette */
+ if (regno > 16)
+ return -EINVAL;
+ palette = (u32 *)info->pseudo_palette;
+ red >>= (16 - info->var.red.length);
+ green >>= (16 - info->var.green.length);
+ blue >>= (16 - info->var.blue.length);
+ value = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset);
+ palette[regno] = value;
+ return 0;
+ }
+
+ pindex = regno;
+
+ if (fb->bits_per_pixel == 16) {
+ pindex = regno << 3;
+
+ if (fb->depth == 16 && regno > 63)
+ return -EINVAL;
+ if (fb->depth == 15 && regno > 31)
+ return -EINVAL;
+
+ if (fb->depth == 16) {
+ u16 r, g, b;
+ int i;
+ if (regno < 32) {
+ for (i = 0; i < 8; i++)
+ fb_helper->funcs->gamma_set(crtc, red,
+ green, blue, pindex + i);
+ }
+
+ fb_helper->funcs->gamma_get(crtc, &r,
+ &g, &b,
+ pindex >> 1);
+
+ for (i = 0; i < 4; i++)
+ fb_helper->funcs->gamma_set(crtc, r,
+ green, b,
+ (pindex >> 1) + i);
+ }
+ }
+
+ if (fb->depth != 16)
+ fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex);
+ return 0;
+}
+
+int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ u16 *red, *green, *blue, *transp;
+ struct drm_crtc *crtc;
+ int i, rc = 0;
+ int start;
+
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ crtc_funcs = crtc->helper_private;
+
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ start = cmap->start;
+
+ for (i = 0; i < cmap->len; i++) {
+ u16 hred, hgreen, hblue, htransp = 0xffff;
+
+ hred = *red++;
+ hgreen = *green++;
+ hblue = *blue++;
+
+ if (transp)
+ htransp = *transp++;
+
+ rc = setcolreg(crtc, hred, hgreen, hblue, start++, info);
+ if (rc)
+ return rc;
+ }
+ crtc_funcs->load_lut(crtc);
+ }
+ return rc;
+}
+EXPORT_SYMBOL(drm_fb_helper_setcmap);
+
+int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_framebuffer *fb = fb_helper->fb;
+ int depth;
+
+ if (var->pixclock != 0 || in_dbg_master())
+ return -EINVAL;
+
+ /* Need to resize the fb object !!! */
+ if (var->bits_per_pixel > fb->bits_per_pixel || var->xres > fb->width || var->yres > fb->height) {
+ DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb "
+ "object %dx%d-%d > %dx%d-%d\n", var->xres, var->yres, var->bits_per_pixel,
+ fb->width, fb->height, fb->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ depth = (var->green.length == 6) ? 16 : 15;
+ break;
+ case 32:
+ depth = (var->transp.length > 0) ? 32 : 24;
+ break;
+ default:
+ depth = var->bits_per_pixel;
+ break;
+ }
+
+ switch (depth) {
+ case 8:
+ var->red.offset = 0;
+ var->green.offset = 0;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 15:
+ var->red.offset = 10;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 5;
+ var->blue.length = 5;
+ var->transp.length = 1;
+ var->transp.offset = 15;
+ break;
+ case 16:
+ var->red.offset = 11;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 6;
+ var->blue.length = 5;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 24:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 32:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_check_var);
+
+/* this will let fbcon do the mode init */
+int drm_fb_helper_set_par(struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct fb_var_screeninfo *var = &info->var;
+ struct drm_crtc *crtc;
+ int ret;
+ int i;
+
+ if (var->pixclock != 0) {
+ DRM_ERROR("PIXEL CLOCK SET\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set);
+ if (ret) {
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ if (fb_helper->delayed_hotplug) {
+ fb_helper->delayed_hotplug = false;
+ drm_fb_helper_hotplug_event(fb_helper);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_set_par);
+
+int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_mode_set *modeset;
+ struct drm_crtc *crtc;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+
+ modeset = &fb_helper->crtc_info[i].mode_set;
+
+ modeset->x = var->xoffset;
+ modeset->y = var->yoffset;
+
+ if (modeset->num_connectors) {
+ ret = crtc->funcs->set_config(modeset);
+ if (!ret) {
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+ }
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+EXPORT_SYMBOL(drm_fb_helper_pan_display);
+
+int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
+ int preferred_bpp)
+{
+ int new_fb = 0;
+ int crtc_count = 0;
+ int i;
+ struct fb_info *info;
+ struct drm_fb_helper_surface_size sizes;
+ int gamma_size = 0;
+
+ memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size));
+ sizes.surface_depth = 24;
+ sizes.surface_bpp = 32;
+ sizes.fb_width = (unsigned)-1;
+ sizes.fb_height = (unsigned)-1;
+
+ /* if driver picks 8 or 16 by default use that
+ for both depth/bpp */
+ if (preferred_bpp != sizes.surface_bpp) {
+ sizes.surface_depth = sizes.surface_bpp = preferred_bpp;
+ }
+ /* first up get a count of crtcs now in use and new min/maxes width/heights */
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];
+ struct drm_fb_helper_cmdline_mode *cmdline_mode;
+
+ cmdline_mode = &fb_helper_conn->cmdline_mode;
+
+ if (cmdline_mode->bpp_specified) {
+ switch (cmdline_mode->bpp) {
+ case 8:
+ sizes.surface_depth = sizes.surface_bpp = 8;
+ break;
+ case 15:
+ sizes.surface_depth = 15;
+ sizes.surface_bpp = 16;
+ break;
+ case 16:
+ sizes.surface_depth = sizes.surface_bpp = 16;
+ break;
+ case 24:
+ sizes.surface_depth = sizes.surface_bpp = 24;
+ break;
+ case 32:
+ sizes.surface_depth = 24;
+ sizes.surface_bpp = 32;
+ break;
+ }
+ break;
+ }
+ }
+
+ crtc_count = 0;
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ struct drm_display_mode *desired_mode;
+ desired_mode = fb_helper->crtc_info[i].desired_mode;
+
+ if (desired_mode) {
+ if (gamma_size == 0)
+ gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;
+ if (desired_mode->hdisplay < sizes.fb_width)
+ sizes.fb_width = desired_mode->hdisplay;
+ if (desired_mode->vdisplay < sizes.fb_height)
+ sizes.fb_height = desired_mode->vdisplay;
+ if (desired_mode->hdisplay > sizes.surface_width)
+ sizes.surface_width = desired_mode->hdisplay;
+ if (desired_mode->vdisplay > sizes.surface_height)
+ sizes.surface_height = desired_mode->vdisplay;
+ crtc_count++;
+ }
+ }
+
+ if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {
+ /* hmm everyone went away - assume VGA cable just fell out
+ and will come back later. */
+ DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n");
+ sizes.fb_width = sizes.surface_width = 1024;
+ sizes.fb_height = sizes.surface_height = 768;
+ }
+
+ /* push down into drivers */
+ new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
+ if (new_fb < 0)
+ return new_fb;
+
+ info = fb_helper->fbdev;
+
+ /* set the fb pointer */
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb;
+ }
+
+ if (new_fb) {
+ info->var.pixclock = 0;
+ if (register_framebuffer(info) < 0) {
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+ info->fix.id);
+
+ } else {
+ drm_fb_helper_set_par(info);
+ }
+
+ /* Switch back to kernel console on panic */
+ /* multi card linked list maybe */
+ if (list_empty(&kernel_fb_helper_list)) {
+ printk(KERN_INFO "drm: registered panic notifier\n");
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &paniced);
+ register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
+ }
+ if (new_fb)
+ list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_single_fb_probe);
+
+void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
+ uint32_t depth)
+{
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
+ FB_VISUAL_TRUECOLOR;
+ info->fix.type_aux = 0;
+ info->fix.xpanstep = 1; /* doing it in hw */
+ info->fix.ypanstep = 1; /* doing it in hw */
+ info->fix.ywrapstep = 0;
+ info->fix.accel = FB_ACCEL_NONE;
+ info->fix.type_aux = 0;
+
+ info->fix.line_length = pitch;
+ return;
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_fix);
+
+void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
+ uint32_t fb_width, uint32_t fb_height)
+{
+ struct drm_framebuffer *fb = fb_helper->fb;
+ info->pseudo_palette = fb_helper->pseudo_palette;
+ info->var.xres_virtual = fb->width;
+ info->var.yres_virtual = fb->height;
+ info->var.bits_per_pixel = fb->bits_per_pixel;
+ info->var.xoffset = 0;
+ info->var.yoffset = 0;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->var.height = -1;
+ info->var.width = -1;
+
+ switch (fb->depth) {
+ case 8:
+ info->var.red.offset = 0;
+ info->var.green.offset = 0;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8; /* 8bit DAC */
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ break;
+ case 15:
+ info->var.red.offset = 10;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 5;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 15;
+ info->var.transp.length = 1;
+ break;
+ case 16:
+ info->var.red.offset = 11;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 6;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 0;
+ break;
+ case 24:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ break;
+ case 32:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 24;
+ info->var.transp.length = 8;
+ break;
+ default:
+ break;
+ }
+
+ info->var.xres = fb_width;
+ info->var.yres = fb_height;
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_var);
+
+static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
+ uint32_t maxX,
+ uint32_t maxY)
+{
+ struct drm_connector *connector;
+ int count = 0;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ count += connector->funcs->fill_modes(connector, maxX, maxY);
+ }
+
+ return count;
+}
+
+static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, &fb_connector->connector->modes, head) {
+ if (drm_mode_width(mode) > width ||
+ drm_mode_height(mode) > height)
+ continue;
+ if (mode->type & DRM_MODE_TYPE_PREFERRED)
+ return mode;
+ }
+ return NULL;
+}
+
+static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
+{
+ struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ cmdline_mode = &fb_connector->cmdline_mode;
+ return cmdline_mode->specified;
+}
+
+static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
+ int width, int height)
+{
+ struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ struct drm_display_mode *mode = NULL;
+
+ cmdline_mode = &fb_helper_conn->cmdline_mode;
+ if (cmdline_mode->specified == false)
+ return mode;
+
+ /* attempt to find a matching mode in the list of modes
+ * we have gotten so far, if not add a CVT mode that conforms
+ */
+ if (cmdline_mode->rb || cmdline_mode->margins)
+ goto create_mode;
+
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ /* check width/height */
+ if (mode->hdisplay != cmdline_mode->xres ||
+ mode->vdisplay != cmdline_mode->yres)
+ continue;
+
+ if (cmdline_mode->refresh_specified) {
+ if (mode->vrefresh != cmdline_mode->refresh)
+ continue;
+ }
+
+ if (cmdline_mode->interlace) {
+ if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
+ continue;
+ }
+ return mode;
+ }
+
+create_mode:
+ if (cmdline_mode->cvt)
+ mode = drm_cvt_mode(fb_helper_conn->connector->dev,
+ cmdline_mode->xres, cmdline_mode->yres,
+ cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
+ cmdline_mode->rb, cmdline_mode->interlace,
+ cmdline_mode->margins);
+ else
+ mode = drm_gtf_mode(fb_helper_conn->connector->dev,
+ cmdline_mode->xres, cmdline_mode->yres,
+ cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
+ cmdline_mode->interlace,
+ cmdline_mode->margins);
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ list_add(&mode->head, &fb_helper_conn->connector->modes);
+ return mode;
+}
+
+static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
+{
+ bool enable;
+
+ if (strict) {
+ enable = connector->status == connector_status_connected;
+ } else {
+ enable = connector->status != connector_status_disconnected;
+ }
+ return enable;
+}
+
+static void drm_enable_connectors(struct drm_fb_helper *fb_helper,
+ bool *enabled)
+{
+ bool any_enabled = false;
+ struct drm_connector *connector;
+ int i = 0;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ enabled[i] = drm_connector_enabled(connector, true);
+ DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
+ enabled[i] ? "yes" : "no");
+ any_enabled |= enabled[i];
+ }
+
+ if (any_enabled)
+ return;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ enabled[i] = drm_connector_enabled(connector, false);
+ }
+}
+
+static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ int count, i, j;
+ bool can_clone = false;
+ struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_display_mode *dmt_mode, *mode;
+
+ /* only contemplate cloning in the single crtc case */
+ if (fb_helper->crtc_count > 1)
+ return false;
+
+ count = 0;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (enabled[i])
+ count++;
+ }
+
+ /* only contemplate cloning if more than one connector is enabled */
+ if (count <= 1)
+ return false;
+
+ /* check the command line or if nothing common pick 1024x768 */
+ can_clone = true;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (!enabled[i])
+ continue;
+ fb_helper_conn = fb_helper->connector_info[i];
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ can_clone = false;
+ break;
+ }
+ for (j = 0; j < i; j++) {
+ if (!enabled[j])
+ continue;
+ if (!drm_mode_equal(modes[j], modes[i]))
+ can_clone = false;
+ }
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using command line\n");
+ return true;
+ }
+
+ /* try and find a 1024x768 mode on each connector */
+ can_clone = true;
+ dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60);
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+
+ if (!enabled[i])
+ continue;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ if (drm_mode_equal(mode, dmt_mode))
+ modes[i] = mode;
+ }
+ if (!modes[i])
+ can_clone = false;
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using 1024x768\n");
+ return true;
+ }
+ DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
+ return false;
+}
+
+static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ struct drm_fb_helper_connector *fb_helper_conn;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ fb_helper_conn = fb_helper->connector_info[i];
+
+ if (enabled[i] == false)
+ continue;
+
+ DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
+ fb_helper_conn->connector->base.id);
+
+ /* got for command line mode first */
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ DRM_DEBUG_KMS("looking for preferred mode on connector %d\n",
+ fb_helper_conn->connector->base.id);
+ modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height);
+ }
+ /* No preferred modes, pick one off the list */
+ if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) {
+ list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head)
+ break;
+ }
+ DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
+ "none");
+ }
+ return true;
+}
+
+static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_crtc **best_crtcs,
+ struct drm_display_mode **modes,
+ int n, int width, int height)
+{
+ int c, o;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_connector *connector;
+ struct drm_connector_helper_funcs *connector_funcs;
+ struct drm_encoder *encoder;
+ struct drm_fb_helper_crtc *best_crtc;
+ int my_score, best_score, score;
+ struct drm_fb_helper_crtc **crtcs, *crtc;
+ struct drm_fb_helper_connector *fb_helper_conn;
+
+ if (n == fb_helper->connector_count)
+ return 0;
+
+ fb_helper_conn = fb_helper->connector_info[n];
+ connector = fb_helper_conn->connector;
+
+ best_crtcs[n] = NULL;
+ best_crtc = NULL;
+ best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height);
+ if (modes[n] == NULL)
+ return best_score;
+
+ crtcs = kzalloc(dev->mode_config.num_connector *
+ sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ if (!crtcs)
+ return best_score;
+
+ my_score = 1;
+ if (connector->status == connector_status_connected)
+ my_score++;
+ if (drm_has_cmdline_mode(fb_helper_conn))
+ my_score++;
+ if (drm_has_preferred_mode(fb_helper_conn, width, height))
+ my_score++;
+
+ connector_funcs = connector->helper_private;
+ encoder = connector_funcs->best_encoder(connector);
+ if (!encoder)
+ goto out;
+
+ /* select a crtc for this connector and then attempt to configure
+ remaining connectors */
+ for (c = 0; c < fb_helper->crtc_count; c++) {
+ crtc = &fb_helper->crtc_info[c];
+
+ if ((encoder->possible_crtcs & (1 << c)) == 0) {
+ continue;
+ }
+
+ for (o = 0; o < n; o++)
+ if (best_crtcs[o] == crtc)
+ break;
+
+ if (o < n) {
+ /* ignore cloning unless only a single crtc */
+ if (fb_helper->crtc_count > 1)
+ continue;
+
+ if (!drm_mode_equal(modes[o], modes[n]))
+ continue;
+ }
+
+ crtcs[n] = crtc;
+ memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *));
+ score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,
+ width, height);
+ if (score > best_score) {
+ best_crtc = crtc;
+ best_score = score;
+ memcpy(best_crtcs, crtcs,
+ dev->mode_config.num_connector *
+ sizeof(struct drm_fb_helper_crtc *));
+ }
+ }
+out:
+ kfree(crtcs);
+ return best_score;
+}
+
+static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
+{
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_fb_helper_crtc **crtcs;
+ struct drm_display_mode **modes;
+ struct drm_encoder *encoder;
+ struct drm_mode_set *modeset;
+ bool *enabled;
+ int width, height;
+ int i, ret;
+
+ DRM_DEBUG_KMS("\n");
+
+ width = dev->mode_config.max_width;
+ height = dev->mode_config.max_height;
+
+ /* clean out all the encoder/crtc combos */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ encoder->crtc = NULL;
+ }
+
+ crtcs = kcalloc(dev->mode_config.num_connector,
+ sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ modes = kcalloc(dev->mode_config.num_connector,
+ sizeof(struct drm_display_mode *), GFP_KERNEL);
+ enabled = kcalloc(dev->mode_config.num_connector,
+ sizeof(bool), GFP_KERNEL);
+
+ drm_enable_connectors(fb_helper, enabled);
+
+ ret = drm_target_cloned(fb_helper, modes, enabled, width, height);
+ if (!ret) {
+ ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
+ if (!ret)
+ DRM_ERROR("Unable to find initial modes\n");
+ }
+
+ DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height);
+
+ drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height);
+
+ /* need to set the modesets up here for use later */
+ /* fill out the connector<->crtc mappings into the modesets */
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ modeset = &fb_helper->crtc_info[i].mode_set;
+ modeset->num_connectors = 0;
+ }
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_display_mode *mode = modes[i];
+ struct drm_fb_helper_crtc *fb_crtc = crtcs[i];
+ modeset = &fb_crtc->mode_set;
+
+ if (mode && fb_crtc) {
+ DRM_DEBUG_KMS("desired mode %s set on crtc %d\n",
+ mode->name, fb_crtc->mode_set.crtc->base.id);
+ fb_crtc->desired_mode = mode;
+ if (modeset->mode)
+ drm_mode_destroy(dev, modeset->mode);
+ modeset->mode = drm_mode_duplicate(dev,
+ fb_crtc->desired_mode);
+ modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector;
+ }
+ }
+
+ kfree(crtcs);
+ kfree(modes);
+ kfree(enabled);
+}
+
+/**
+ * drm_helper_initial_config - setup a sane initial connector configuration
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Called at init time, must take mode config lock.
+ *
+ * Scan the CRTCs and connectors and try to put together an initial setup.
+ * At the moment, this is a cloned configuration across all heads with
+ * a new framebuffer object as the backing store.
+ *
+ * RETURNS:
+ * Zero if everything went ok, nonzero otherwise.
+ */
+bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)
+{
+ struct drm_device *dev = fb_helper->dev;
+ int count = 0;
+
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(fb_helper->dev);
+
+ drm_fb_helper_parse_command_line(fb_helper);
+
+ count = drm_fb_helper_probe_connector_modes(fb_helper,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ /*
+ * we shouldn't end up with no modes here.
+ */
+ if (count == 0) {
+ printk(KERN_INFO "No connectors reported connected with modes\n");
+ }
+ drm_setup_crtcs(fb_helper);
+
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
+}
+EXPORT_SYMBOL(drm_fb_helper_initial_config);
+
+bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
+{
+ int count = 0;
+ u32 max_width, max_height, bpp_sel;
+ bool bound = false, crtcs_bound = false;
+ struct drm_crtc *crtc;
+
+ if (!fb_helper->fb)
+ return false;
+
+ list_for_each_entry(crtc, &fb_helper->dev->mode_config.crtc_list, head) {
+ if (crtc->fb)
+ crtcs_bound = true;
+ if (crtc->fb == fb_helper->fb)
+ bound = true;
+ }
+
+ if (!bound && crtcs_bound) {
+ fb_helper->delayed_hotplug = true;
+ return false;
+ }
+ DRM_DEBUG_KMS("\n");
+
+ max_width = fb_helper->fb->width;
+ max_height = fb_helper->fb->height;
+ bpp_sel = fb_helper->fb->bits_per_pixel;
+
+ count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
+ max_height);
+ drm_setup_crtcs(fb_helper);
+
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
+}
+EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
+
--- /dev/null
+/**
+ * \file drm_fops.c
+ * File operations for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Daryll Strauss <daryll@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/poll.h>
+#include <linux/slab.h>
+
+/* from BKL pushdown: note that nothing else serializes idr_find() */
+DEFINE_MUTEX(drm_global_mutex);
+EXPORT_SYMBOL(drm_global_mutex);
+
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev);
+
+static int drm_setup(struct drm_device * dev)
+{
+ int i;
+ int ret;
+
+ if (dev->driver->firstopen) {
+ ret = dev->driver->firstopen(dev);
+ if (ret != 0)
+ return ret;
+ }
+
+ atomic_set(&dev->ioctl_count, 0);
+ atomic_set(&dev->vma_count, 0);
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
+ i = drm_dma_setup(dev);
+ if (i < 0)
+ return i;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
+ atomic_set(&dev->counts[i], 0);
+
+ dev->sigdata.lock = NULL;
+
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_waitqueue_head(&dev->context_wait);
+ dev->if_version = 0;
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_async = NULL;
+ init_waitqueue_head(&dev->buf_readers);
+ init_waitqueue_head(&dev->buf_writers);
+
+ DRM_DEBUG("\n");
+
+ /*
+ * The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+
+ return 0;
+}
+
+/**
+ * Open file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the DRM device with the same minor number, calls open_helper(), and
+ * increments the device open count. If the open count was previous at zero,
+ * i.e., it's the first that the device is open, then calls setup().
+ */
+int drm_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ int minor_id = iminor(inode);
+ struct drm_minor *minor;
+ int retcode = 0;
+
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ return -ENODEV;
+
+ if (!(dev = minor->dev))
+ return -ENODEV;
+
+ retcode = drm_open_helper(inode, filp, dev);
+ if (!retcode) {
+ atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+ if (!dev->open_count++)
+ retcode = drm_setup(dev);
+ }
+ if (!retcode) {
+ mutex_lock(&dev->struct_mutex);
+ if (minor->type == DRM_MINOR_LEGACY) {
+ if (dev->dev_mapping == NULL)
+ dev->dev_mapping = inode->i_mapping;
+ else if (dev->dev_mapping != inode->i_mapping)
+ retcode = -ENODEV;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_open);
+
+/**
+ * File \c open operation.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ *
+ * Puts the dev->fops corresponding to the device minor number into
+ * \p filp, call the \c open method, and restore the file operations.
+ */
+int drm_stub_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ struct drm_minor *minor;
+ int minor_id = iminor(inode);
+ int err = -ENODEV;
+ const struct file_operations *old_fops;
+
+ DRM_DEBUG("\n");
+
+ mutex_lock(&drm_global_mutex);
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ goto out;
+
+ if (!(dev = minor->dev))
+ goto out;
+
+ old_fops = filp->f_op;
+ filp->f_op = fops_get(&dev->driver->fops);
+ if (filp->f_op == NULL) {
+ filp->f_op = old_fops;
+ goto out;
+ }
+ if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
+ fops_put(filp->f_op);
+ filp->f_op = fops_get(old_fops);
+ }
+ fops_put(old_fops);
+
+out:
+ mutex_unlock(&drm_global_mutex);
+ return err;
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static int drm_cpu_valid(void)
+{
+#if defined(__i386__)
+ if (boot_cpu_data.x86 == 3)
+ return 0; /* No cmpxchg on a 386 */
+#endif
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ return 0; /* No cmpxchg before v9 sparc. */
+#endif
+ return 1;
+}
+
+/**
+ * Called whenever a process opens /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param dev device.
+ * \return zero on success or a negative number on failure.
+ *
+ * Creates and initializes a drm_file structure for the file private data in \p
+ * filp and add it into the double linked list in \p dev.
+ */
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev)
+{
+ int minor_id = iminor(inode);
+ struct drm_file *priv;
+ int ret;
+
+ if (filp->f_flags & O_EXCL)
+ return -EBUSY; /* No exclusive opens */
+ if (!drm_cpu_valid())
+ return -EINVAL;
+
+ DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ filp->private_data = priv;
+ priv->filp = filp;
+ priv->uid = current_euid();
+ priv->pid = task_pid_nr(current);
+ priv->minor = idr_find(&drm_minors_idr, minor_id);
+ priv->ioctl_count = 0;
+ /* for compatibility root is always authenticated */
+ priv->authenticated = capable(CAP_SYS_ADMIN);
+ priv->lock_count = 0;
+
+ INIT_LIST_HEAD(&priv->lhead);
+ INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->event_list);
+ init_waitqueue_head(&priv->event_wait);
+ priv->event_space = 4096; /* set aside 4k for event buffer */
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_open(dev, priv);
+
+ if (dev->driver->open) {
+ ret = dev->driver->open(dev, priv);
+ if (ret < 0)
+ goto out_free;
+ }
+
+
+ /* if there is no current master make this fd it */
+ mutex_lock(&dev->struct_mutex);
+ if (!priv->minor->master) {
+ /* create a new master */
+ priv->minor->master = drm_master_create(priv->minor);
+ if (!priv->minor->master) {
+ mutex_unlock(&dev->struct_mutex);
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ priv->is_master = 1;
+ /* take another reference for the copy in the local file priv */
+ priv->master = drm_master_get(priv->minor->master);
+
+ priv->authenticated = 1;
+
+ mutex_unlock(&dev->struct_mutex);
+ if (dev->driver->master_create) {
+ ret = dev->driver->master_create(dev, priv->master);
+ if (ret) {
+ mutex_lock(&dev->struct_mutex);
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, priv, true);
+ if (ret) {
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ } else {
+ /* get a reference to the master */
+ priv->master = drm_master_get(priv->minor->master);
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&priv->lhead, &dev->filelist);
+ mutex_unlock(&dev->struct_mutex);
+
+#ifdef __alpha__
+ /*
+ * Default the hose
+ */
+ if (!dev->hose) {
+ struct pci_dev *pci_dev;
+ pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+ if (pci_dev) {
+ dev->hose = pci_dev->sysdata;
+ pci_dev_put(pci_dev);
+ }
+ if (!dev->hose) {
+ struct pci_bus *b = pci_bus_b(pci_root_buses.next);
+ if (b)
+ dev->hose = b->sysdata;
+ }
+ }
+#endif
+
+ return 0;
+ out_free:
+ kfree(priv);
+ filp->private_data = NULL;
+ return ret;
+}
+
+/** No-op. */
+int drm_fasync(int fd, struct file *filp, int on)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
+ (long)old_encode_dev(priv->minor->device));
+ return fasync_helper(fd, filp, on, &dev->buf_async);
+}
+EXPORT_SYMBOL(drm_fasync);
+
+/*
+ * Reclaim locked buffers; note that this may be a bad idea if the current
+ * context doesn't have the hw lock...
+ */
+static void drm_reclaim_locked_buffers(struct drm_device *dev, struct file *f)
+{
+ struct drm_file *file_priv = f->private_data;
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ } else {
+ unsigned long _end = jiffies + 3 * DRM_HZ;
+ int locked = 0;
+
+ drm_idlelock_take(&file_priv->master->lock);
+
+ /*
+ * Wait for a while.
+ */
+ do {
+ spin_lock_bh(&file_priv->master->lock.spinlock);
+ locked = file_priv->master->lock.idle_has_lock;
+ spin_unlock_bh(&file_priv->master->lock.spinlock);
+ if (locked)
+ break;
+ schedule();
+ } while (!time_after_eq(jiffies, _end));
+
+ if (!locked) {
+ DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
+ "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
+ "\tI will go on reclaiming the buffers anyway.\n");
+ }
+
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+}
+
+static void drm_master_release(struct drm_device *dev, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+
+ if (dev->driver->reclaim_buffers_locked &&
+ file_priv->master->lock.hw_lock)
+ drm_reclaim_locked_buffers(dev, filp);
+
+ if (dev->driver->reclaim_buffers_idlelocked &&
+ file_priv->master->lock.hw_lock) {
+ drm_idlelock_take(&file_priv->master->lock);
+ dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ DRM_DEBUG("File %p released, freeing lock for context %d\n",
+ filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ drm_lock_free(&file_priv->master->lock,
+ _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !dev->driver->reclaim_buffers_locked) {
+ dev->driver->reclaim_buffers(dev, file_priv);
+ }
+}
+
+static void drm_events_release(struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e, *et;
+ struct drm_pending_vblank_event *v, *vt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Remove pending flips */
+ list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
+ if (v->base.file_priv == file_priv) {
+ list_del(&v->base.link);
+ drm_vblank_put(dev, v->pipe);
+ v->base.destroy(&v->base);
+ }
+
+ /* Remove unconsumed events */
+ list_for_each_entry_safe(e, et, &file_priv->event_list, link)
+ e->destroy(e);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * Release file.
+ *
+ * \param inode device inode
+ * \param file_priv DRM file private.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the hardware lock is held then free it, and take it again for the kernel
+ * context since it's necessary to reclaim buffers. Unlink the file private
+ * data from its list and free it. Decreases the open count and if it reaches
+ * zero calls drm_lastclose().
+ */
+int drm_release(struct inode *inode, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ int retcode = 0;
+
+ mutex_lock(&drm_global_mutex);
+
+ DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+ if (dev->driver->preclose)
+ dev->driver->preclose(dev, file_priv);
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+ task_pid_nr(current),
+ (long)old_encode_dev(file_priv->minor->device),
+ dev->open_count);
+
+ /* if the master has gone away we can't do anything with the lock */
+ if (file_priv->minor->master)
+ drm_master_release(dev, filp);
+
+ drm_events_release(file_priv);
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_release(dev, file_priv);
+
+ if (dev->driver->driver_features & DRIVER_MODESET)
+ drm_fb_release(file_priv);
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->tag == file_priv &&
+ pos->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev,
+ pos->handle);
+
+ drm_ctxbitmap_free(dev, pos->handle);
+
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (file_priv->is_master) {
+ struct drm_master *master = file_priv->master;
+ struct drm_file *temp;
+ list_for_each_entry(temp, &dev->filelist, lhead) {
+ if ((temp->master == file_priv->master) &&
+ (temp != file_priv))
+ temp->authenticated = 0;
+ }
+
+ /**
+ * Since the master is disappearing, so is the
+ * possibility to lock.
+ */
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+
+ if (file_priv->minor->master == file_priv->master) {
+ /* drop the reference held my the minor */
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, true);
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+
+ /* drop the reference held my the file priv */
+ drm_master_put(&file_priv->master);
+ file_priv->is_master = 0;
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (dev->driver->postclose)
+ dev->driver->postclose(dev, file_priv);
+ kfree(file_priv);
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+ atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
+ if (!--dev->open_count) {
+ if (atomic_read(&dev->ioctl_count)) {
+ DRM_ERROR("Device busy: %d\n",
+ atomic_read(&dev->ioctl_count));
+ retcode = -EBUSY;
+ } else
+ retcode = drm_lastclose(dev);
+ }
+ mutex_unlock(&drm_global_mutex);
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_release);
+
+static bool
+drm_dequeue_event(struct drm_file *file_priv,
+ size_t total, size_t max, struct drm_pending_event **out)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e;
+ unsigned long flags;
+ bool ret = false;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ *out = NULL;
+ if (list_empty(&file_priv->event_list))
+ goto out;
+ e = list_first_entry(&file_priv->event_list,
+ struct drm_pending_event, link);
+ if (e->event->length + total > max)
+ goto out;
+
+ file_priv->event_space += e->event->length;
+ list_del(&e->link);
+ *out = e;
+ ret = true;
+
+out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ return ret;
+}
+
+ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_pending_event *e;
+ size_t total;
+ ssize_t ret;
+
+ ret = wait_event_interruptible(file_priv->event_wait,
+ !list_empty(&file_priv->event_list));
+ if (ret < 0)
+ return ret;
+
+ total = 0;
+ while (drm_dequeue_event(file_priv, total, count, &e)) {
+ if (copy_to_user(buffer + total,
+ e->event, e->event->length)) {
+ total = -EFAULT;
+ break;
+ }
+
+ total += e->event->length;
+ e->destroy(e);
+ }
+
+ return total;
+}
+EXPORT_SYMBOL(drm_read);
+
+unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(filp, &file_priv->event_wait, wait);
+
+ if (!list_empty(&file_priv->event_list))
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+EXPORT_SYMBOL(drm_poll);
--- /dev/null
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/mman.h>
+#include <linux/pagemap.h>
+#include "drmP.h"
+
+/** @file drm_gem.c
+ *
+ * This file provides some of the base ioctls and library routines for
+ * the graphics memory manager implemented by each device driver.
+ *
+ * Because various devices have different requirements in terms of
+ * synchronization and migration strategies, implementing that is left up to
+ * the driver, and all that the general API provides should be generic --
+ * allocating objects, reading/writing data with the cpu, freeing objects.
+ * Even there, platform-dependent optimizations for reading/writing data with
+ * the CPU mean we'll likely hook those out to driver-specific calls. However,
+ * the DRI2 implementation wants to have at least allocate/mmap be generic.
+ *
+ * The goal was to have swap-backed object allocation managed through
+ * struct file. However, file descriptors as handles to a struct file have
+ * two major failings:
+ * - Process limits prevent more than 1024 or so being used at a time by
+ * default.
+ * - Inability to allocate high fds will aggravate the X Server's select()
+ * handling, and likely that of many GL client applications as well.
+ *
+ * This led to a plan of using our own integer IDs (called handles, following
+ * DRM terminology) to mimic fds, and implement the fd syscalls we need as
+ * ioctls. The objects themselves will still include the struct file so
+ * that we can transition to fds if the required kernel infrastructure shows
+ * up at a later date, and as our interface with shmfs for memory allocation.
+ */
+
+/*
+ * We make up offsets for buffer objects so we can recognize them at
+ * mmap time.
+ */
+
+/* pgoff in mmap is an unsigned long, so we need to make sure that
+ * the faked up offset will fit
+ */
+
+#if BITS_PER_LONG == 64
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
+#else
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFUL >> PAGE_SHIFT) * 16)
+#endif
+
+/**
+ * Initialize the GEM device fields
+ */
+
+int
+drm_gem_init(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm;
+
+ spin_lock_init(&dev->object_name_lock);
+ idr_init(&dev->object_name_idr);
+
+ mm = kzalloc(sizeof(struct drm_gem_mm), GFP_KERNEL);
+ if (!mm) {
+ DRM_ERROR("out of memory\n");
+ return -ENOMEM;
+ }
+
+ dev->mm_private = mm;
+
+ if (drm_ht_create(&mm->offset_hash, 19)) {
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ if (drm_mm_init(&mm->offset_manager, DRM_FILE_PAGE_OFFSET_START,
+ DRM_FILE_PAGE_OFFSET_SIZE)) {
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void
+drm_gem_destroy(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm = dev->mm_private;
+
+ drm_mm_takedown(&mm->offset_manager);
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ dev->mm_private = NULL;
+}
+
+/**
+ * Initialize an already allocate GEM object of the specified size with
+ * shmfs backing store.
+ */
+int drm_gem_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size)
+{
+ BUG_ON((size & (PAGE_SIZE - 1)) != 0);
+
+ obj->dev = dev;
+ obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
+ if (IS_ERR(obj->filp))
+ return -ENOMEM;
+
+ kref_init(&obj->refcount);
+ atomic_set(&obj->handle_count, 0);
+ obj->size = size;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_object_init);
+
+/**
+ * Allocate a GEM object of the specified size with shmfs backing store
+ */
+struct drm_gem_object *
+drm_gem_object_alloc(struct drm_device *dev, size_t size)
+{
+ struct drm_gem_object *obj;
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ goto free;
+
+ if (drm_gem_object_init(dev, obj, size) != 0)
+ goto free;
+
+ if (dev->driver->gem_init_object != NULL &&
+ dev->driver->gem_init_object(obj) != 0) {
+ goto fput;
+ }
+ return obj;
+fput:
+ /* Object_init mangles the global counters - readjust them. */
+ fput(obj->filp);
+free:
+ kfree(obj);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_gem_object_alloc);
+
+/**
+ * Removes the mapping from handle to filp for this object.
+ */
+static int
+drm_gem_handle_delete(struct drm_file *filp, u32 handle)
+{
+ struct drm_device *dev;
+ struct drm_gem_object *obj;
+
+ /* This is gross. The idr system doesn't let us try a delete and
+ * return an error code. It just spews if you fail at deleting.
+ * So, we have to grab a lock around finding the object and then
+ * doing the delete on it and dropping the refcount, or the user
+ * could race us to double-decrement the refcount and cause a
+ * use-after-free later. Given the frequency of our handle lookups,
+ * we may want to use ida for number allocation and a hash table
+ * for the pointers, anyway.
+ */
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return -EINVAL;
+ }
+ dev = obj->dev;
+
+ /* Release reference and decrement refcount. */
+ idr_remove(&filp->object_idr, handle);
+ spin_unlock(&filp->table_lock);
+
+ drm_gem_object_handle_unreference_unlocked(obj);
+
+ return 0;
+}
+
+/**
+ * Create a handle for this object. This adds a handle reference
+ * to the object, which includes a regular reference count. Callers
+ * will likely want to dereference the object afterwards.
+ */
+int
+drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep)
+{
+ int ret;
+
+ /*
+ * Get the user-visible handle using idr.
+ */
+again:
+ /* ensure there is space available to allocate a handle */
+ if (idr_pre_get(&file_priv->object_idr, GFP_KERNEL) == 0)
+ return -ENOMEM;
+
+ /* do the allocation under our spinlock */
+ spin_lock(&file_priv->table_lock);
+ ret = idr_get_new_above(&file_priv->object_idr, obj, 1, (int *)handlep);
+ spin_unlock(&file_priv->table_lock);
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ return ret;
+
+ drm_gem_object_handle_reference(obj);
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_handle_create);
+
+/** Returns a reference to the object named by the handle. */
+struct drm_gem_object *
+drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
+ u32 handle)
+{
+ struct drm_gem_object *obj;
+
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return NULL;
+ }
+
+ drm_gem_object_reference(obj);
+
+ spin_unlock(&filp->table_lock);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_gem_object_lookup);
+
+/**
+ * Releases the handle to an mm object.
+ */
+int
+drm_gem_close_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_close *args = data;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ ret = drm_gem_handle_delete(file_priv, args->handle);
+
+ return ret;
+}
+
+/**
+ * Create a global name for an object, returning the name.
+ *
+ * Note that the name does not hold a reference; when the object
+ * is freed, the name goes away.
+ */
+int
+drm_gem_flink_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_flink *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (obj == NULL)
+ return -ENOENT;
+
+again:
+ if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ spin_lock(&dev->object_name_lock);
+ if (!obj->name) {
+ ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
+ &obj->name);
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ goto err;
+
+ /* Allocate a reference for the name table. */
+ drm_gem_object_reference(obj);
+ } else {
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+ ret = 0;
+ }
+
+err:
+ drm_gem_object_unreference_unlocked(obj);
+ return ret;
+}
+
+/**
+ * Open an object using the global name, returning a handle and the size.
+ *
+ * This handle (of course) holds a reference to the object, so the object
+ * will not go away until the handle is deleted.
+ */
+int
+drm_gem_open_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_open *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+ u32 handle;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ spin_lock(&dev->object_name_lock);
+ obj = idr_find(&dev->object_name_idr, (int) args->name);
+ if (obj)
+ drm_gem_object_reference(obj);
+ spin_unlock(&dev->object_name_lock);
+ if (!obj)
+ return -ENOENT;
+
+ ret = drm_gem_handle_create(file_priv, obj, &handle);
+ drm_gem_object_unreference_unlocked(obj);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+ args->size = obj->size;
+
+ return 0;
+}
+
+/**
+ * Called at device open time, sets up the structure for handling refcounting
+ * of mm objects.
+ */
+void
+drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_init(&file_private->object_idr);
+ spin_lock_init(&file_private->table_lock);
+}
+
+/**
+ * Called at device close to release the file's
+ * handle references on objects.
+ */
+static int
+drm_gem_object_release_handle(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+
+ drm_gem_object_handle_unreference_unlocked(obj);
+
+ return 0;
+}
+
+/**
+ * Called at close time when the filp is going away.
+ *
+ * Releases any remaining references on objects by this filp.
+ */
+void
+drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_for_each(&file_private->object_idr,
+ &drm_gem_object_release_handle, NULL);
+
+ idr_remove_all(&file_private->object_idr);
+ idr_destroy(&file_private->object_idr);
+}
+
+void
+drm_gem_object_release(struct drm_gem_object *obj)
+{
+ fput(obj->filp);
+}
+EXPORT_SYMBOL(drm_gem_object_release);
+
+/**
+ * Called after the last reference to the object has been lost.
+ * Must be called holding struct_ mutex
+ *
+ * Frees the object
+ */
+void
+drm_gem_object_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = (struct drm_gem_object *) kref;
+ struct drm_device *dev = obj->dev;
+
+ BUG_ON(!mutex_is_locked(&dev->struct_mutex));
+
+ if (dev->driver->gem_free_object != NULL)
+ dev->driver->gem_free_object(obj);
+}
+EXPORT_SYMBOL(drm_gem_object_free);
+
+static void drm_gem_object_ref_bug(struct kref *list_kref)
+{
+ BUG();
+}
+
+/**
+ * Called after the last handle to the object has been closed
+ *
+ * Removes any name for the object. Note that this must be
+ * called before drm_gem_object_free or we'll be touching
+ * freed memory
+ */
+void drm_gem_object_handle_free(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+
+ /* Remove any name for this object */
+ spin_lock(&dev->object_name_lock);
+ if (obj->name) {
+ idr_remove(&dev->object_name_idr, obj->name);
+ obj->name = 0;
+ spin_unlock(&dev->object_name_lock);
+ /*
+ * The object name held a reference to this object, drop
+ * that now.
+ *
+ * This cannot be the last reference, since the handle holds one too.
+ */
+ kref_put(&obj->refcount, drm_gem_object_ref_bug);
+ } else
+ spin_unlock(&dev->object_name_lock);
+
+}
+EXPORT_SYMBOL(drm_gem_object_handle_free);
+
+void drm_gem_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+
+ drm_gem_object_reference(obj);
+
+ mutex_lock(&obj->dev->struct_mutex);
+ drm_vm_open_locked(vma);
+ mutex_unlock(&obj->dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_open);
+
+void drm_gem_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+
+ mutex_lock(&obj->dev->struct_mutex);
+ drm_vm_close_locked(vma);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&obj->dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_close);
+
+
+/**
+ * drm_gem_mmap - memory map routine for GEM objects
+ * @filp: DRM file pointer
+ * @vma: VMA for the area to be mapped
+ *
+ * If a driver supports GEM object mapping, mmap calls on the DRM file
+ * descriptor will end up here.
+ *
+ * If we find the object based on the offset passed in (vma->vm_pgoff will
+ * contain the fake offset we created when the GTT map ioctl was called on
+ * the object), we set up the driver fault handler so that any accesses
+ * to the object can be trapped, to perform migration, GTT binding, surface
+ * register allocation, or performance monitoring.
+ */
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_local_map *map = NULL;
+ struct drm_gem_object *obj;
+ struct drm_hash_item *hash;
+ int ret = 0;
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (drm_ht_find_item(&mm->offset_hash, vma->vm_pgoff, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return drm_mmap(filp, vma);
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map ||
+ ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) {
+ ret = -EPERM;
+ goto out_unlock;
+ }
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ obj = map->handle;
+ if (!obj->dev->driver->gem_vm_ops) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_ops = obj->dev->driver->gem_vm_ops;
+ vma->vm_private_data = map->handle;
+ vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+
+ /* Take a ref for this mapping of the object, so that the fault
+ * handler can dereference the mmap offset's pointer to the object.
+ * This reference is cleaned up by the corresponding vm_close
+ * (which should happen whether the vma was created by this call, or
+ * by a vm_open due to mremap or partial unmap or whatever).
+ */
+ drm_gem_object_reference(obj);
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_mmap);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ */
+
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include "drm_global.h"
+
+struct drm_global_item {
+ struct mutex mutex;
+ void *object;
+ int refcount;
+};
+
+static struct drm_global_item glob[DRM_GLOBAL_NUM];
+
+void drm_global_init(void)
+{
+ int i;
+
+ for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
+ struct drm_global_item *item = &glob[i];
+ mutex_init(&item->mutex);
+ item->object = NULL;
+ item->refcount = 0;
+ }
+}
+
+void drm_global_release(void)
+{
+ int i;
+ for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
+ struct drm_global_item *item = &glob[i];
+ BUG_ON(item->object != NULL);
+ BUG_ON(item->refcount != 0);
+ }
+}
+
+int drm_global_item_ref(struct drm_global_reference *ref)
+{
+ int ret;
+ struct drm_global_item *item = &glob[ref->global_type];
+ void *object;
+
+ mutex_lock(&item->mutex);
+ if (item->refcount == 0) {
+ item->object = kzalloc(ref->size, GFP_KERNEL);
+ if (unlikely(item->object == NULL)) {
+ ret = -ENOMEM;
+ goto out_err;
+ }
+
+ ref->object = item->object;
+ ret = ref->init(ref);
+ if (unlikely(ret != 0))
+ goto out_err;
+
+ }
+ ++item->refcount;
+ ref->object = item->object;
+ object = item->object;
+ mutex_unlock(&item->mutex);
+ return 0;
+out_err:
+ mutex_unlock(&item->mutex);
+ item->object = NULL;
+ return ret;
+}
+EXPORT_SYMBOL(drm_global_item_ref);
+
+void drm_global_item_unref(struct drm_global_reference *ref)
+{
+ struct drm_global_item *item = &glob[ref->global_type];
+
+ mutex_lock(&item->mutex);
+ BUG_ON(item->refcount == 0);
+ BUG_ON(ref->object != item->object);
+ if (--item->refcount == 0) {
+ ref->release(ref);
+ item->object = NULL;
+ }
+ mutex_unlock(&item->mutex);
+}
+EXPORT_SYMBOL(drm_global_item_unref);
+
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple open hash tab implementation.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_hashtab.h"
+#include <linux/hash.h>
+#include <linux/slab.h>
+
+int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
+{
+ unsigned int i;
+
+ ht->size = 1 << order;
+ ht->order = order;
+ ht->fill = 0;
+ ht->table = NULL;
+ ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE);
+ if (!ht->use_vmalloc) {
+ ht->table = kcalloc(ht->size, sizeof(*ht->table), GFP_KERNEL);
+ }
+ if (!ht->table) {
+ ht->use_vmalloc = 1;
+ ht->table = vmalloc(ht->size*sizeof(*ht->table));
+ }
+ if (!ht->table) {
+ DRM_ERROR("Out of memory for hash table\n");
+ return -ENOMEM;
+ }
+ for (i=0; i< ht->size; ++i) {
+ INIT_HLIST_HEAD(&ht->table[i]);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_create);
+
+void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+ int count = 0;
+
+ hashed_key = hash_long(key, ht->order);
+ DRM_DEBUG("Key is 0x%08lx, Hashed key is 0x%08x\n", key, hashed_key);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ DRM_DEBUG("count %d, key: 0x%08lx\n", count++, entry->key);
+ }
+}
+
+static struct hlist_node *drm_ht_find_key(struct drm_open_hash *ht,
+ unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return list;
+ if (entry->key > key)
+ break;
+ }
+ return NULL;
+}
+
+
+int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list, *parent;
+ unsigned int hashed_key;
+ unsigned long key = item->key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ parent = NULL;
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return -EINVAL;
+ if (entry->key > key)
+ break;
+ parent = list;
+ }
+ if (parent) {
+ hlist_add_after(parent, &item->head);
+ } else {
+ hlist_add_head(&item->head, h_list);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_insert_item);
+
+/*
+ * Just insert an item and return any "bits" bit key that hasn't been
+ * used before.
+ */
+int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
+ unsigned long seed, int bits, int shift,
+ unsigned long add)
+{
+ int ret;
+ unsigned long mask = (1 << bits) - 1;
+ unsigned long first, unshifted_key;
+
+ unshifted_key = hash_long(seed, bits);
+ first = unshifted_key;
+ do {
+ item->key = (unshifted_key << shift) + add;
+ ret = drm_ht_insert_item(ht, item);
+ if (ret)
+ unshifted_key = (unshifted_key + 1) & mask;
+ } while(ret && (unshifted_key != first));
+
+ if (ret) {
+ DRM_ERROR("Available key bit space exhausted\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_just_insert_please);
+
+int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key,
+ struct drm_hash_item **item)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (!list)
+ return -EINVAL;
+
+ *item = hlist_entry(list, struct drm_hash_item, head);
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_find_item);
+
+int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (list) {
+ hlist_del_init(list);
+ ht->fill--;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ hlist_del_init(&item->head);
+ ht->fill--;
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_remove_item);
+
+void drm_ht_remove(struct drm_open_hash *ht)
+{
+ if (ht->table) {
+ if (ht->use_vmalloc)
+ vfree(ht->table);
+ else
+ kfree(ht->table);
+ ht->table = NULL;
+ }
+}
+EXPORT_SYMBOL(drm_ht_remove);
--- /dev/null
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_minor *minor = node->minor;
+ struct drm_device *dev = minor->dev;
+ struct drm_master *master = minor->master;
+
+ if (!master)
+ return 0;
+
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {
+ if (master->unique) {
+ seq_printf(m, "%s %s %s\n",
+ dev->driver->platform_device->name,
+ dev_name(dev->dev), master->unique);
+ } else {
+ seq_printf(m, "%s\n",
+ dev->driver->platform_device->name);
+ }
+ } else {
+ if (master->unique) {
+ seq_printf(m, "%s %s %s\n",
+ dev->driver->pci_driver.name,
+ dev_name(dev->dev), master->unique);
+ } else {
+ seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+ dev_name(dev->dev));
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+ _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+ const char *type;
+ int i;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "slot offset size type flags address mtrr\n\n");
+ i = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ map = r_list->map;
+ if (!map)
+ continue;
+ if (map->type < 0 || map->type > 5)
+ type = "??";
+ else
+ type = types[map->type];
+
+ seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ (unsigned long long)map->offset,
+ map->size, type, map->flags,
+ (unsigned long) r_list->user_token);
+ if (map->mtrr < 0)
+ seq_printf(m, "none\n");
+ else
+ seq_printf(m, "%4d\n", map->mtrr);
+ i++;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../queues" is read.
+ */
+int drm_queues_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int i;
+ struct drm_queue *q;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, " ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
+ for (i = 0; i < dev->queue_count; i++) {
+ q = dev->queuelist[i];
+ atomic_inc(&q->use_count);
+ seq_printf(m, "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count),
+ atomic_read(&q->block_read) ? 'r' : '-',
+ atomic_read(&q->block_write) ? 'w' : '-',
+ waitqueue_active(&q->read_queue) ? 'r' : '-',
+ waitqueue_active(&q->write_queue) ? 'w' : '-',
+ waitqueue_active(&q->flush_queue) ? 'f' : '-',
+ DRM_BUFCOUNT(&q->waitlist));
+ atomic_dec(&q->use_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_device_dma *dma;
+ int i, seg_pages;
+
+ mutex_lock(&dev->struct_mutex);
+ dma = dev->dma;
+ if (!dma) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ seq_printf(m, " o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count) {
+ seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+ seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i].freelist.count),
+ dma->bufs[i].seg_count,
+ seg_pages,
+ seg_pages * PAGE_SIZE / 1024);
+ }
+ }
+ seq_printf(m, "\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i % 32))
+ seq_printf(m, "\n");
+ seq_printf(m, " %d", dma->buflist[i]->list);
+ }
+ seq_printf(m, "\n");
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int crtc;
+
+ mutex_lock(&dev->struct_mutex);
+ for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+ seq_printf(m, "CRTC %d enable: %d\n",
+ crtc, atomic_read(&dev->vblank_refcount[crtc]));
+ seq_printf(m, "CRTC %d counter: %d\n",
+ crtc, drm_vblank_count(dev, crtc));
+ seq_printf(m, "CRTC %d last wait: %d\n",
+ crtc, dev->last_vblank_wait[crtc]);
+ seq_printf(m, "CRTC %d in modeset: %d\n",
+ crtc, dev->vblank_inmodeset[crtc]);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *priv;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "a dev pid uid magic ioctls\n\n");
+ list_for_each_entry(priv, &dev->filelist, lhead) {
+ seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor->index,
+ priv->pid,
+ priv->uid, priv->magic, priv->ioctl_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+
+int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+ struct seq_file *m = data;
+
+ seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ atomic_read(&obj->handle_count),
+ atomic_read(&obj->refcount.refcount));
+ return 0;
+}
+
+int drm_gem_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, " name size handles refcount\n");
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_vma_entry *pt;
+ struct vm_area_struct *vma;
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08llx\n",
+ atomic_read(&dev->vma_count),
+ high_memory, (u64)virt_to_phys(high_memory));
+
+ list_for_each_entry(pt, &dev->vmalist, head) {
+ vma = pt->vma;
+ if (!vma)
+ continue;
+ seq_printf(m,
+ "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
+ pt->pid, vma->vm_start, vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ vma->vm_pgoff);
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+ seq_printf(m, "\n");
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+#endif
+
--- /dev/null
+/**
+ * \file drm_ioc32.c
+ *
+ * 32-bit ioctl compatibility routines for the DRM.
+ *
+ * \author Paul Mackerras <paulus@samba.org>
+ *
+ * Copyright (C) Paul Mackerras 2005.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <linux/compat.h>
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t)
+#define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t)
+#define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t)
+#define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t)
+#define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t)
+
+#define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t)
+#define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t)
+#define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t)
+#define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t)
+#define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t)
+#define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t)
+#define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t)
+
+#define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
+
+#define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
+#define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
+
+#define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
+#define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
+
+#define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t)
+#define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t)
+#define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t)
+#define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t)
+#define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t)
+#define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t)
+
+#define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t)
+#define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t)
+
+#define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t)
+
+#define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
+
+typedef struct drm_version_32 {
+ int version_major; /**< Major version */
+ int version_minor; /**< Minor version */
+ int version_patchlevel; /**< Patch level */
+ u32 name_len; /**< Length of name buffer */
+ u32 name; /**< Name of driver */
+ u32 date_len; /**< Length of date buffer */
+ u32 date; /**< User-space buffer to hold date */
+ u32 desc_len; /**< Length of desc buffer */
+ u32 desc; /**< User-space buffer to hold desc */
+} drm_version32_t;
+
+static int compat_drm_version(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_version32_t v32;
+ struct drm_version __user *version;
+ int err;
+
+ if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
+ return -EFAULT;
+
+ version = compat_alloc_user_space(sizeof(*version));
+ if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
+ return -EFAULT;
+ if (__put_user(v32.name_len, &version->name_len)
+ || __put_user((void __user *)(unsigned long)v32.name,
+ &version->name)
+ || __put_user(v32.date_len, &version->date_len)
+ || __put_user((void __user *)(unsigned long)v32.date,
+ &version->date)
+ || __put_user(v32.desc_len, &version->desc_len)
+ || __put_user((void __user *)(unsigned long)v32.desc,
+ &version->desc))
+ return -EFAULT;
+
+ err = drm_ioctl(file,
+ DRM_IOCTL_VERSION, (unsigned long)version);
+ if (err)
+ return err;
+
+ if (__get_user(v32.version_major, &version->version_major)
+ || __get_user(v32.version_minor, &version->version_minor)
+ || __get_user(v32.version_patchlevel, &version->version_patchlevel)
+ || __get_user(v32.name_len, &version->name_len)
+ || __get_user(v32.date_len, &version->date_len)
+ || __get_user(v32.desc_len, &version->desc_len))
+ return -EFAULT;
+
+ if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_unique32 {
+ u32 unique_len; /**< Length of unique */
+ u32 unique; /**< Unique name for driver instantiation */
+} drm_unique32_t;
+
+static int compat_drm_getunique(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_unique32_t uq32;
+ struct drm_unique __user *u;
+ int err;
+
+ if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
+ return -EFAULT;
+
+ u = compat_alloc_user_space(sizeof(*u));
+ if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
+ return -EFAULT;
+ if (__put_user(uq32.unique_len, &u->unique_len)
+ || __put_user((void __user *)(unsigned long)uq32.unique,
+ &u->unique))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
+ if (err)
+ return err;
+
+ if (__get_user(uq32.unique_len, &u->unique_len))
+ return -EFAULT;
+ if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
+ return -EFAULT;
+ return 0;
+}
+
+static int compat_drm_setunique(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_unique32_t uq32;
+ struct drm_unique __user *u;
+
+ if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
+ return -EFAULT;
+
+ u = compat_alloc_user_space(sizeof(*u));
+ if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
+ return -EFAULT;
+ if (__put_user(uq32.unique_len, &u->unique_len)
+ || __put_user((void __user *)(unsigned long)uq32.unique,
+ &u->unique))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
+}
+
+typedef struct drm_map32 {
+ u32 offset; /**< Requested physical address (0 for SAREA)*/
+ u32 size; /**< Requested physical size (bytes) */
+ enum drm_map_type type; /**< Type of memory to map */
+ enum drm_map_flags flags; /**< Flags */
+ u32 handle; /**< User-space: "Handle" to pass to mmap() */
+ int mtrr; /**< MTRR slot used */
+} drm_map32_t;
+
+static int compat_drm_getmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ drm_map32_t m32;
+ struct drm_map __user *map;
+ int idx, err;
+ void *handle;
+
+ if (get_user(idx, &argp->offset))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user(idx, &map->offset))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map);
+ if (err)
+ return err;
+
+ if (__get_user(m32.offset, &map->offset)
+ || __get_user(m32.size, &map->size)
+ || __get_user(m32.type, &map->type)
+ || __get_user(m32.flags, &map->flags)
+ || __get_user(handle, &map->handle)
+ || __get_user(m32.mtrr, &map->mtrr))
+ return -EFAULT;
+
+ m32.handle = (unsigned long)handle;
+ if (copy_to_user(argp, &m32, sizeof(m32)))
+ return -EFAULT;
+ return 0;
+
+}
+
+static int compat_drm_addmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ drm_map32_t m32;
+ struct drm_map __user *map;
+ int err;
+ void *handle;
+
+ if (copy_from_user(&m32, argp, sizeof(m32)))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user(m32.offset, &map->offset)
+ || __put_user(m32.size, &map->size)
+ || __put_user(m32.type, &map->type)
+ || __put_user(m32.flags, &map->flags))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map);
+ if (err)
+ return err;
+
+ if (__get_user(m32.offset, &map->offset)
+ || __get_user(m32.mtrr, &map->mtrr)
+ || __get_user(handle, &map->handle))
+ return -EFAULT;
+
+ m32.handle = (unsigned long)handle;
+ if (m32.handle != (unsigned long)handle && printk_ratelimit())
+ printk(KERN_ERR "compat_drm_addmap truncated handle"
+ " %p for type %d offset %x\n",
+ handle, m32.type, m32.offset);
+
+ if (copy_to_user(argp, &m32, sizeof(m32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_rmmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ struct drm_map __user *map;
+ u32 handle;
+
+ if (get_user(handle, &argp->handle))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user((void *)(unsigned long)handle, &map->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map);
+}
+
+typedef struct drm_client32 {
+ int idx; /**< Which client desired? */
+ int auth; /**< Is client authenticated? */
+ u32 pid; /**< Process ID */
+ u32 uid; /**< User ID */
+ u32 magic; /**< Magic */
+ u32 iocs; /**< Ioctl count */
+} drm_client32_t;
+
+static int compat_drm_getclient(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_client32_t c32;
+ drm_client32_t __user *argp = (void __user *)arg;
+ struct drm_client __user *client;
+ int idx, err;
+
+ if (get_user(idx, &argp->idx))
+ return -EFAULT;
+
+ client = compat_alloc_user_space(sizeof(*client));
+ if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
+ return -EFAULT;
+ if (__put_user(idx, &client->idx))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
+ if (err)
+ return err;
+
+ if (__get_user(c32.auth, &client->auth)
+ || __get_user(c32.pid, &client->pid)
+ || __get_user(c32.uid, &client->uid)
+ || __get_user(c32.magic, &client->magic)
+ || __get_user(c32.iocs, &client->iocs))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &c32, sizeof(c32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_stats32 {
+ u32 count;
+ struct {
+ u32 value;
+ enum drm_stat_type type;
+ } data[15];
+} drm_stats32_t;
+
+static int compat_drm_getstats(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_stats32_t s32;
+ drm_stats32_t __user *argp = (void __user *)arg;
+ struct drm_stats __user *stats;
+ int i, err;
+
+ stats = compat_alloc_user_space(sizeof(*stats));
+ if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
+ if (err)
+ return err;
+
+ if (__get_user(s32.count, &stats->count))
+ return -EFAULT;
+ for (i = 0; i < 15; ++i)
+ if (__get_user(s32.data[i].value, &stats->data[i].value)
+ || __get_user(s32.data[i].type, &stats->data[i].type))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &s32, sizeof(s32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_buf_desc32 {
+ int count; /**< Number of buffers of this size */
+ int size; /**< Size in bytes */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+ int flags;
+ u32 agp_start; /**< Start address in the AGP aperture */
+} drm_buf_desc32_t;
+
+static int compat_drm_addbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_desc32_t __user *argp = (void __user *)arg;
+ struct drm_buf_desc __user *buf;
+ int err;
+ unsigned long agp_start;
+
+ buf = compat_alloc_user_space(sizeof(*buf));
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
+ return -EFAULT;
+
+ if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
+ || __get_user(agp_start, &argp->agp_start)
+ || __put_user(agp_start, &buf->agp_start))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
+ if (err)
+ return err;
+
+ if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
+ || __get_user(agp_start, &buf->agp_start)
+ || __put_user(agp_start, &argp->agp_start))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_markbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_desc32_t b32;
+ drm_buf_desc32_t __user *argp = (void __user *)arg;
+ struct drm_buf_desc __user *buf;
+
+ if (copy_from_user(&b32, argp, sizeof(b32)))
+ return -EFAULT;
+
+ buf = compat_alloc_user_space(sizeof(*buf));
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
+ return -EFAULT;
+
+ if (__put_user(b32.size, &buf->size)
+ || __put_user(b32.low_mark, &buf->low_mark)
+ || __put_user(b32.high_mark, &buf->high_mark))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
+}
+
+typedef struct drm_buf_info32 {
+ int count; /**< Entries in list */
+ u32 list;
+} drm_buf_info32_t;
+
+static int compat_drm_infobufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_info32_t req32;
+ drm_buf_info32_t __user *argp = (void __user *)arg;
+ drm_buf_desc32_t __user *to;
+ struct drm_buf_info __user *request;
+ struct drm_buf_desc __user *list;
+ size_t nbytes;
+ int i, err;
+ int count, actual;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ count = req32.count;
+ to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
+ if (count < 0)
+ count = 0;
+ if (count > 0
+ && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
+ return -EFAULT;
+
+ nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
+ request = compat_alloc_user_space(nbytes);
+ if (!access_ok(VERIFY_WRITE, request, nbytes))
+ return -EFAULT;
+ list = (struct drm_buf_desc *) (request + 1);
+
+ if (__put_user(count, &request->count)
+ || __put_user(list, &request->list))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(actual, &request->count))
+ return -EFAULT;
+ if (count >= actual)
+ for (i = 0; i < actual; ++i)
+ if (__copy_in_user(&to[i], &list[i],
+ offsetof(struct drm_buf_desc, flags)))
+ return -EFAULT;
+
+ if (__put_user(actual, &argp->count))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_buf_pub32 {
+ int idx; /**< Index into the master buffer list */
+ int total; /**< Buffer size */
+ int used; /**< Amount of buffer in use (for DMA) */
+ u32 address; /**< Address of buffer */
+} drm_buf_pub32_t;
+
+typedef struct drm_buf_map32 {
+ int count; /**< Length of the buffer list */
+ u32 virtual; /**< Mmap'd area in user-virtual */
+ u32 list; /**< Buffer information */
+} drm_buf_map32_t;
+
+static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_map32_t __user *argp = (void __user *)arg;
+ drm_buf_map32_t req32;
+ drm_buf_pub32_t __user *list32;
+ struct drm_buf_map __user *request;
+ struct drm_buf_pub __user *list;
+ int i, err;
+ int count, actual;
+ size_t nbytes;
+ void __user *addr;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+ count = req32.count;
+ list32 = (void __user *)(unsigned long)req32.list;
+
+ if (count < 0)
+ return -EINVAL;
+ nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
+ request = compat_alloc_user_space(nbytes);
+ if (!access_ok(VERIFY_WRITE, request, nbytes))
+ return -EFAULT;
+ list = (struct drm_buf_pub *) (request + 1);
+
+ if (__put_user(count, &request->count)
+ || __put_user(list, &request->list))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(actual, &request->count))
+ return -EFAULT;
+ if (count >= actual)
+ for (i = 0; i < actual; ++i)
+ if (__copy_in_user(&list32[i], &list[i],
+ offsetof(struct drm_buf_pub, address))
+ || __get_user(addr, &list[i].address)
+ || __put_user((unsigned long)addr,
+ &list32[i].address))
+ return -EFAULT;
+
+ if (__put_user(actual, &argp->count)
+ || __get_user(addr, &request->virtual)
+ || __put_user((unsigned long)addr, &argp->virtual))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_buf_free32 {
+ int count;
+ u32 list;
+} drm_buf_free32_t;
+
+static int compat_drm_freebufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_free32_t req32;
+ struct drm_buf_free __user *request;
+ drm_buf_free32_t __user *argp = (void __user *)arg;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(req32.count, &request->count)
+ || __put_user((int __user *)(unsigned long)req32.list,
+ &request->list))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
+}
+
+typedef struct drm_ctx_priv_map32 {
+ unsigned int ctx_id; /**< Context requesting private mapping */
+ u32 handle; /**< Handle of map */
+} drm_ctx_priv_map32_t;
+
+static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_ctx_priv_map32_t req32;
+ struct drm_ctx_priv_map __user *request;
+ drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(req32.ctx_id, &request->ctx_id)
+ || __put_user((void *)(unsigned long)req32.handle,
+ &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
+}
+
+static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct drm_ctx_priv_map __user *request;
+ drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
+ int err;
+ unsigned int ctx_id;
+ void *handle;
+
+ if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(ctx_id, &argp->ctx_id))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(ctx_id, &request->ctx_id))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(handle, &request->handle)
+ || __put_user((unsigned long)handle, &argp->handle))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_ctx_res32 {
+ int count;
+ u32 contexts;
+} drm_ctx_res32_t;
+
+static int compat_drm_resctx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_ctx_res32_t __user *argp = (void __user *)arg;
+ drm_ctx_res32_t res32;
+ struct drm_ctx_res __user *res;
+ int err;
+
+ if (copy_from_user(&res32, argp, sizeof(res32)))
+ return -EFAULT;
+
+ res = compat_alloc_user_space(sizeof(*res));
+ if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
+ return -EFAULT;
+ if (__put_user(res32.count, &res->count)
+ || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
+ &res->contexts))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
+ if (err)
+ return err;
+
+ if (__get_user(res32.count, &res->count)
+ || __put_user(res32.count, &argp->count))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_dma32 {
+ int context; /**< Context handle */
+ int send_count; /**< Number of buffers to send */
+ u32 send_indices; /**< List of handles to buffers */
+ u32 send_sizes; /**< Lengths of data to send */
+ enum drm_dma_flags flags; /**< Flags */
+ int request_count; /**< Number of buffers requested */
+ int request_size; /**< Desired size for buffers */
+ u32 request_indices; /**< Buffer information */
+ u32 request_sizes;
+ int granted_count; /**< Number of buffers granted */
+} drm_dma32_t;
+
+static int compat_drm_dma(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_dma32_t d32;
+ drm_dma32_t __user *argp = (void __user *)arg;
+ struct drm_dma __user *d;
+ int err;
+
+ if (copy_from_user(&d32, argp, sizeof(d32)))
+ return -EFAULT;
+
+ d = compat_alloc_user_space(sizeof(*d));
+ if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
+ return -EFAULT;
+
+ if (__put_user(d32.context, &d->context)
+ || __put_user(d32.send_count, &d->send_count)
+ || __put_user((int __user *)(unsigned long)d32.send_indices,
+ &d->send_indices)
+ || __put_user((int __user *)(unsigned long)d32.send_sizes,
+ &d->send_sizes)
+ || __put_user(d32.flags, &d->flags)
+ || __put_user(d32.request_count, &d->request_count)
+ || __put_user((int __user *)(unsigned long)d32.request_indices,
+ &d->request_indices)
+ || __put_user((int __user *)(unsigned long)d32.request_sizes,
+ &d->request_sizes))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
+ if (err)
+ return err;
+
+ if (__get_user(d32.request_size, &d->request_size)
+ || __get_user(d32.granted_count, &d->granted_count)
+ || __put_user(d32.request_size, &argp->request_size)
+ || __put_user(d32.granted_count, &argp->granted_count))
+ return -EFAULT;
+
+ return 0;
+}
+
+#if __OS_HAS_AGP
+typedef struct drm_agp_mode32 {
+ u32 mode; /**< AGP mode */
+} drm_agp_mode32_t;
+
+static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_mode32_t __user *argp = (void __user *)arg;
+ drm_agp_mode32_t m32;
+ struct drm_agp_mode __user *mode;
+
+ if (get_user(m32.mode, &argp->mode))
+ return -EFAULT;
+
+ mode = compat_alloc_user_space(sizeof(*mode));
+ if (put_user(m32.mode, &mode->mode))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
+}
+
+typedef struct drm_agp_info32 {
+ int agp_version_major;
+ int agp_version_minor;
+ u32 mode;
+ u32 aperture_base; /* physical address */
+ u32 aperture_size; /* bytes */
+ u32 memory_allowed; /* bytes */
+ u32 memory_used;
+
+ /* PCI information */
+ unsigned short id_vendor;
+ unsigned short id_device;
+} drm_agp_info32_t;
+
+static int compat_drm_agp_info(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_info32_t __user *argp = (void __user *)arg;
+ drm_agp_info32_t i32;
+ struct drm_agp_info __user *info;
+ int err;
+
+ info = compat_alloc_user_space(sizeof(*info));
+ if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
+ if (err)
+ return err;
+
+ if (__get_user(i32.agp_version_major, &info->agp_version_major)
+ || __get_user(i32.agp_version_minor, &info->agp_version_minor)
+ || __get_user(i32.mode, &info->mode)
+ || __get_user(i32.aperture_base, &info->aperture_base)
+ || __get_user(i32.aperture_size, &info->aperture_size)
+ || __get_user(i32.memory_allowed, &info->memory_allowed)
+ || __get_user(i32.memory_used, &info->memory_used)
+ || __get_user(i32.id_vendor, &info->id_vendor)
+ || __get_user(i32.id_device, &info->id_device))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &i32, sizeof(i32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_agp_buffer32 {
+ u32 size; /**< In bytes -- will round to page boundary */
+ u32 handle; /**< Used for binding / unbinding */
+ u32 type; /**< Type of memory to allocate */
+ u32 physical; /**< Physical used by i810 */
+} drm_agp_buffer32_t;
+
+static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_buffer32_t __user *argp = (void __user *)arg;
+ drm_agp_buffer32_t req32;
+ struct drm_agp_buffer __user *request;
+ int err;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.size, &request->size)
+ || __put_user(req32.type, &request->type))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(req32.handle, &request->handle)
+ || __get_user(req32.physical, &request->physical)
+ || copy_to_user(argp, &req32, sizeof(req32))) {
+ drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int compat_drm_agp_free(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_buffer32_t __user *argp = (void __user *)arg;
+ struct drm_agp_buffer __user *request;
+ u32 handle;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || get_user(handle, &argp->handle)
+ || __put_user(handle, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
+}
+
+typedef struct drm_agp_binding32 {
+ u32 handle; /**< From drm_agp_buffer */
+ u32 offset; /**< In bytes -- will round to page boundary */
+} drm_agp_binding32_t;
+
+static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_binding32_t __user *argp = (void __user *)arg;
+ drm_agp_binding32_t req32;
+ struct drm_agp_binding __user *request;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.handle, &request->handle)
+ || __put_user(req32.offset, &request->offset))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
+}
+
+static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_binding32_t __user *argp = (void __user *)arg;
+ struct drm_agp_binding __user *request;
+ u32 handle;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || get_user(handle, &argp->handle)
+ || __put_user(handle, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
+}
+#endif /* __OS_HAS_AGP */
+
+typedef struct drm_scatter_gather32 {
+ u32 size; /**< In bytes -- will round to page boundary */
+ u32 handle; /**< Used for mapping / unmapping */
+} drm_scatter_gather32_t;
+
+static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_scatter_gather32_t __user *argp = (void __user *)arg;
+ struct drm_scatter_gather __user *request;
+ int err;
+ unsigned long x;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(x, &argp->size)
+ || __put_user(x, &request->size))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
+ if (err)
+ return err;
+
+ /* XXX not sure about the handle conversion here... */
+ if (__get_user(x, &request->handle)
+ || __put_user(x >> PAGE_SHIFT, &argp->handle))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_sg_free(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_scatter_gather32_t __user *argp = (void __user *)arg;
+ struct drm_scatter_gather __user *request;
+ unsigned long x;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(x, &argp->handle)
+ || __put_user(x << PAGE_SHIFT, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
+}
+
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+typedef struct drm_update_draw32 {
+ drm_drawable_t handle;
+ unsigned int type;
+ unsigned int num;
+ /* 64-bit version has a 32-bit pad here */
+ u64 data; /**< Pointer */
+} __attribute__((packed)) drm_update_draw32_t;
+
+static int compat_drm_update_draw(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_update_draw32_t update32;
+ struct drm_update_draw __user *request;
+ int err;
+
+ if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) ||
+ __put_user(update32.handle, &request->handle) ||
+ __put_user(update32.type, &request->type) ||
+ __put_user(update32.num, &request->num) ||
+ __put_user(update32.data, &request->data))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
+ return err;
+}
+#endif
+
+struct drm_wait_vblank_request32 {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ u32 signal;
+};
+
+struct drm_wait_vblank_reply32 {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ s32 tval_sec;
+ s32 tval_usec;
+};
+
+typedef union drm_wait_vblank32 {
+ struct drm_wait_vblank_request32 request;
+ struct drm_wait_vblank_reply32 reply;
+} drm_wait_vblank32_t;
+
+static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_wait_vblank32_t __user *argp = (void __user *)arg;
+ drm_wait_vblank32_t req32;
+ union drm_wait_vblank __user *request;
+ int err;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.request.type, &request->request.type)
+ || __put_user(req32.request.sequence, &request->request.sequence)
+ || __put_user(req32.request.signal, &request->request.signal))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(req32.reply.type, &request->reply.type)
+ || __get_user(req32.reply.sequence, &request->reply.sequence)
+ || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
+ || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &req32, sizeof(req32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
+ [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
+#if __OS_HAS_AGP
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
+#endif
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
+#endif
+ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
+};
+
+/**
+ * Called whenever a 32-bit process running under a 64-bit kernel
+ * performs an ioctl on /dev/drm.
+ *
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ */
+long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ drm_ioctl_compat_t *fn;
+ int ret;
+
+ /* Assume that ioctls without an explicit compat routine will just
+ * work. This may not always be a good assumption, but it's better
+ * than always failing.
+ */
+ if (nr >= ARRAY_SIZE(drm_compat_ioctls))
+ return drm_ioctl(filp, cmd, arg);
+
+ fn = drm_compat_ioctls[nr];
+
+ if (fn != NULL)
+ ret = (*fn) (filp, cmd, arg);
+ else
+ ret = drm_ioctl(filp, cmd, arg);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(drm_compat_ioctl);
--- /dev/null
+/**
+ * \file drm_ioctl.c
+ * IOCTL processing for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#include "linux/pci.h"
+
+/**
+ * Get the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from drm_device::unique into user space.
+ */
+int drm_getunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+
+ if (u->unique_len >= master->unique_len) {
+ if (copy_to_user(u->unique, master->unique, master->unique_len))
+ return -EFAULT;
+ }
+ u->unique_len = master->unique_len;
+
+ return 0;
+}
+
+static void
+drm_unset_busid(struct drm_device *dev,
+ struct drm_master *master)
+{
+ kfree(dev->devname);
+ dev->devname = NULL;
+
+ kfree(master->unique);
+ master->unique = NULL;
+ master->unique_len = 0;
+ master->unique_size = 0;
+}
+
+/**
+ * Set the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from userspace into drm_device::unique, and verifies that
+ * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated
+ * in interface version 1.1 and will return EBUSY when setversion has requested
+ * version 1.1 or greater.
+ */
+int drm_setunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+ int domain, bus, slot, func, ret;
+
+ if (master->unique_len || master->unique)
+ return -EBUSY;
+
+ if (!u->unique_len || u->unique_len > 1024)
+ return -EINVAL;
+
+ master->unique_len = u->unique_len;
+ master->unique_size = u->unique_len + 1;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (!master->unique) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ if (copy_from_user(master->unique, u->unique, master->unique_len)) {
+ ret = -EFAULT;
+ goto err;
+ }
+
+ master->unique[master->unique_len] = '\0';
+
+ dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
+ strlen(master->unique) + 2, GFP_KERNEL);
+ if (!dev->devname) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+
+ /* Return error if the busid submitted doesn't match the device's actual
+ * busid.
+ */
+ ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ domain = bus >> 8;
+ bus &= 0xff;
+
+ if ((domain != drm_get_pci_domain(dev)) ||
+ (bus != dev->pdev->bus->number) ||
+ (slot != PCI_SLOT(dev->pdev->devfn)) ||
+ (func != PCI_FUNC(dev->pdev->devfn))) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ return 0;
+
+err:
+ drm_unset_busid(dev, master);
+ return ret;
+}
+
+static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ int len, ret;
+
+ if (master->unique != NULL)
+ drm_unset_busid(dev, master);
+
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {
+ master->unique_len = 10 + strlen(dev->platformdev->name);
+ master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL);
+
+ if (master->unique == NULL)
+ return -ENOMEM;
+
+ len = snprintf(master->unique, master->unique_len,
+ "platform:%s", dev->platformdev->name);
+
+ if (len > master->unique_len) {
+ DRM_ERROR("Unique buffer overflowed\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ dev->devname =
+ kmalloc(strlen(dev->platformdev->name) +
+ master->unique_len + 2, GFP_KERNEL);
+
+ if (dev->devname == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ sprintf(dev->devname, "%s@%s", dev->platformdev->name,
+ master->unique);
+
+ } else {
+ master->unique_len = 40;
+ master->unique_size = master->unique_len;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (master->unique == NULL)
+ return -ENOMEM;
+
+ len = snprintf(master->unique, master->unique_len,
+ "pci:%04x:%02x:%02x.%d",
+ drm_get_pci_domain(dev),
+ dev->pdev->bus->number,
+ PCI_SLOT(dev->pdev->devfn),
+ PCI_FUNC(dev->pdev->devfn));
+ if (len >= master->unique_len) {
+ DRM_ERROR("buffer overflow");
+ ret = -EINVAL;
+ goto err;
+ } else
+ master->unique_len = len;
+
+ dev->devname =
+ kmalloc(strlen(dev->driver->pci_driver.name) +
+ master->unique_len + 2, GFP_KERNEL);
+
+ if (dev->devname == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+ }
+
+ return 0;
+
+err:
+ drm_unset_busid(dev, master);
+ return ret;
+}
+
+/**
+ * Get a mapping information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_map structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the mapping with the specified offset and copies its information
+ * into userspace
+ */
+int drm_getmap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ idx = map->offset;
+
+ mutex_lock(&dev->struct_mutex);
+ if (idx < 0) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist) {
+ if (i == idx) {
+ r_list = list_entry(list, struct drm_map_list, head);
+ break;
+ }
+ i++;
+ }
+ if (!r_list || !r_list->map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ map->offset = r_list->map->offset;
+ map->size = r_list->map->size;
+ map->type = r_list->map->type;
+ map->flags = r_list->map->flags;
+ map->handle = (void *)(unsigned long) r_list->user_token;
+ map->mtrr = r_list->map->mtrr;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Get client information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_client structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the client with the specified index and copies its information
+ * into userspace
+ */
+int drm_getclient(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_client *client = data;
+ struct drm_file *pt;
+ int idx;
+ int i;
+
+ idx = client->idx;
+ mutex_lock(&dev->struct_mutex);
+
+ i = 0;
+ list_for_each_entry(pt, &dev->filelist, lhead) {
+ if (i++ >= idx) {
+ client->auth = pt->authenticated;
+ client->pid = pt->pid;
+ client->uid = pt->uid;
+ client->magic = pt->magic;
+ client->iocs = pt->ioctl_count;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return -EINVAL;
+}
+
+/**
+ * Get statistics information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_stats structure.
+ *
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getstats(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_stats *stats = data;
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+
+ mutex_lock(&dev->struct_mutex);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats->data[i].value =
+ (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
+ else
+ stats->data[i].value = atomic_read(&dev->counts[i]);
+ stats->data[i].type = dev->types[i];
+ }
+
+ stats->count = dev->counters;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Setversion ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Sets the requested interface version
+ */
+int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_set_version *sv = data;
+ int if_version, retcode = 0;
+
+ if (sv->drm_di_major != -1) {
+ if (sv->drm_di_major != DRM_IF_MAJOR ||
+ sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ if_version = DRM_IF_VERSION(sv->drm_di_major,
+ sv->drm_di_minor);
+ dev->if_version = max(if_version, dev->if_version);
+ if (sv->drm_di_minor >= 1) {
+ /*
+ * Version 1.1 includes tying of DRM to specific device
+ * Version 1.4 has proper PCI domain support
+ */
+ retcode = drm_set_busid(dev, file_priv);
+ if (retcode)
+ goto done;
+ }
+ }
+
+ if (sv->drm_dd_major != -1) {
+ if (sv->drm_dd_major != dev->driver->major ||
+ sv->drm_dd_minor < 0 || sv->drm_dd_minor >
+ dev->driver->minor) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ if (dev->driver->set_version)
+ dev->driver->set_version(dev, sv);
+ }
+
+done:
+ sv->drm_di_major = DRM_IF_MAJOR;
+ sv->drm_di_minor = DRM_IF_MINOR;
+ sv->drm_dd_major = dev->driver->major;
+ sv->drm_dd_minor = dev->driver->minor;
+
+ return retcode;
+}
+
+/** No-op ioctl. */
+int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+ return 0;
+}
--- /dev/null
+/**
+ * \file drm_irq.c
+ * IRQ support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_trace.h"
+
+#include <linux/interrupt.h> /* For task queue support */
+#include <linux/slab.h>
+
+#include <linux/vgaarb.h>
+/**
+ * Get interrupt from bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_irq_busid structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Finds the PCI device with the specified bus id and gets its IRQ number.
+ * This IOCTL is deprecated, and will now return EINVAL for any busid not equal
+ * to that of the device that this DRM instance attached to.
+ */
+int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_irq_busid *p = data;
+
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return -EINVAL;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
+ (p->busnum & 0xff) != dev->pdev->bus->number ||
+ p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
+ return -EINVAL;
+
+ p->irq = dev->pdev->irq;
+
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
+ p->irq);
+
+ return 0;
+}
+
+static void vblank_disable_fn(unsigned long arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ unsigned long irqflags;
+ int i;
+
+ if (!dev->vblank_disable_allowed)
+ return;
+
+ for (i = 0; i < dev->num_crtcs; i++) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
+ dev->vblank_enabled[i]) {
+ DRM_DEBUG("disabling vblank on crtc %d\n", i);
+ dev->last_vblank[i] =
+ dev->driver->get_vblank_counter(dev, i);
+ dev->driver->disable_vblank(dev, i);
+ dev->vblank_enabled[i] = 0;
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ }
+}
+
+void drm_vblank_cleanup(struct drm_device *dev)
+{
+ /* Bail if the driver didn't call drm_vblank_init() */
+ if (dev->num_crtcs == 0)
+ return;
+
+ del_timer(&dev->vblank_disable_timer);
+
+ vblank_disable_fn((unsigned long)dev);
+
+ kfree(dev->vbl_queue);
+ kfree(dev->_vblank_count);
+ kfree(dev->vblank_refcount);
+ kfree(dev->vblank_enabled);
+ kfree(dev->last_vblank);
+ kfree(dev->last_vblank_wait);
+ kfree(dev->vblank_inmodeset);
+
+ dev->num_crtcs = 0;
+}
+EXPORT_SYMBOL(drm_vblank_cleanup);
+
+int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+{
+ int i, ret = -ENOMEM;
+
+ setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
+ (unsigned long)dev);
+ spin_lock_init(&dev->vbl_lock);
+ dev->num_crtcs = num_crtcs;
+
+ dev->vbl_queue = kmalloc(sizeof(wait_queue_head_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vbl_queue)
+ goto err;
+
+ dev->_vblank_count = kmalloc(sizeof(atomic_t) * num_crtcs, GFP_KERNEL);
+ if (!dev->_vblank_count)
+ goto err;
+
+ dev->vblank_refcount = kmalloc(sizeof(atomic_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vblank_refcount)
+ goto err;
+
+ dev->vblank_enabled = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_enabled)
+ goto err;
+
+ dev->last_vblank = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank)
+ goto err;
+
+ dev->last_vblank_wait = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank_wait)
+ goto err;
+
+ dev->vblank_inmodeset = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_inmodeset)
+ goto err;
+
+ /* Zero per-crtc vblank stuff */
+ for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
+ atomic_set(&dev->_vblank_count[i], 0);
+ atomic_set(&dev->vblank_refcount[i], 0);
+ }
+
+ dev->vblank_disable_allowed = 0;
+ return 0;
+
+err:
+ drm_vblank_cleanup(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_init);
+
+static void drm_irq_vgaarb_nokms(void *cookie, bool state)
+{
+ struct drm_device *dev = cookie;
+
+ if (dev->driver->vgaarb_irq) {
+ dev->driver->vgaarb_irq(dev, state);
+ return;
+ }
+
+ if (!dev->irq_enabled)
+ return;
+
+ if (state)
+ dev->driver->irq_uninstall(dev);
+ else {
+ dev->driver->irq_preinstall(dev);
+ dev->driver->irq_postinstall(dev);
+ }
+}
+
+/**
+ * Install IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Initializes the IRQ related data. Installs the handler, calling the driver
+ * \c drm_driver_irq_preinstall() and \c drm_driver_irq_postinstall() functions
+ * before and after the installation.
+ */
+int drm_irq_install(struct drm_device *dev)
+{
+ int ret = 0;
+ unsigned long sh_flags = 0;
+ char *irqname;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if (drm_dev_to_irq(dev) == 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Driver must have been initialized */
+ if (!dev->dev_private) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ if (dev->irq_enabled) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EBUSY;
+ }
+ dev->irq_enabled = 1;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));
+
+ /* Before installing handler */
+ dev->driver->irq_preinstall(dev);
+
+ /* Install handler */
+ if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
+ sh_flags = IRQF_SHARED;
+
+ if (dev->devname)
+ irqname = dev->devname;
+ else
+ irqname = dev->driver->name;
+
+ ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
+ sh_flags, irqname, dev);
+
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);
+
+ /* After installing handler */
+ ret = dev->driver->irq_postinstall(dev);
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_irq_install);
+
+/**
+ * Uninstall the IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Calls the driver's \c drm_driver_irq_uninstall() function, and stops the irq.
+ */
+int drm_irq_uninstall(struct drm_device * dev)
+{
+ unsigned long irqflags;
+ int irq_enabled, i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ irq_enabled = dev->irq_enabled;
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+
+ /*
+ * Wake up any waiters so they don't hang.
+ */
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ for (i = 0; i < dev->num_crtcs; i++) {
+ DRM_WAKEUP(&dev->vbl_queue[i]);
+ dev->vblank_enabled[i] = 0;
+ dev->last_vblank[i] = dev->driver->get_vblank_counter(dev, i);
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (!irq_enabled)
+ return -EINVAL;
+
+ DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
+
+ dev->driver->irq_uninstall(dev);
+
+ free_irq(drm_dev_to_irq(dev), dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_irq_uninstall);
+
+/**
+ * IRQ control ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_control structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls irq_install() or irq_uninstall() according to \p arg.
+ */
+int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_control *ctl = data;
+
+ /* if we haven't irq we fallback for compatibility reasons - this used to be a separate function in drm_dma.h */
+
+
+ switch (ctl->func) {
+ case DRM_INST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ if (dev->if_version < DRM_IF_VERSION(1, 2) &&
+ ctl->irq != drm_dev_to_irq(dev))
+ return -EINVAL;
+ return drm_irq_install(dev);
+ case DRM_UNINST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ return drm_irq_uninstall(dev);
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * drm_vblank_count - retrieve "cooked" vblank counter value
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity.
+ */
+u32 drm_vblank_count(struct drm_device *dev, int crtc)
+{
+ return atomic_read(&dev->_vblank_count[crtc]);
+}
+EXPORT_SYMBOL(drm_vblank_count);
+
+/**
+ * drm_update_vblank_count - update the master vblank counter
+ * @dev: DRM device
+ * @crtc: counter to update
+ *
+ * Call back into the driver to update the appropriate vblank counter
+ * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * update the last read value so we can deal with wraparound on the next
+ * call if necessary.
+ *
+ * Only necessary when going from off->on, to account for frames we
+ * didn't get an interrupt for.
+ *
+ * Note: caller must hold dev->vbl_lock since this reads & writes
+ * device vblank fields.
+ */
+static void drm_update_vblank_count(struct drm_device *dev, int crtc)
+{
+ u32 cur_vblank, diff;
+
+ /*
+ * Interrupts were disabled prior to this call, so deal with counter
+ * wrap if needed.
+ * NOTE! It's possible we lost a full dev->max_vblank_count events
+ * here if the register is small or we had vblank interrupts off for
+ * a long time.
+ */
+ cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
+ diff = cur_vblank - dev->last_vblank[crtc];
+ if (cur_vblank < dev->last_vblank[crtc]) {
+ diff += dev->max_vblank_count;
+
+ DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
+ crtc, dev->last_vblank[crtc], cur_vblank, diff);
+ }
+
+ DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n",
+ crtc, diff);
+
+ atomic_add(diff, &dev->_vblank_count[crtc]);
+}
+
+/**
+ * drm_vblank_get - get a reference count on vblank events
+ * @dev: DRM device
+ * @crtc: which CRTC to own
+ *
+ * Acquire a reference count on vblank events to avoid having them disabled
+ * while in use.
+ *
+ * RETURNS
+ * Zero on success, nonzero on failure.
+ */
+int drm_vblank_get(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ /* Going from 0->1 means we have to enable interrupts again */
+ if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
+ if (!dev->vblank_enabled[crtc]) {
+ ret = dev->driver->enable_vblank(dev, crtc);
+ DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n", crtc, ret);
+ if (ret)
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ else {
+ dev->vblank_enabled[crtc] = 1;
+ drm_update_vblank_count(dev, crtc);
+ }
+ }
+ } else {
+ if (!dev->vblank_enabled[crtc]) {
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ ret = -EINVAL;
+ }
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_get);
+
+/**
+ * drm_vblank_put - give up ownership of vblank events
+ * @dev: DRM device
+ * @crtc: which counter to give up
+ *
+ * Release ownership of a given vblank counter, turning off interrupts
+ * if possible.
+ */
+void drm_vblank_put(struct drm_device *dev, int crtc)
+{
+ BUG_ON (atomic_read (&dev->vblank_refcount[crtc]) == 0);
+
+ /* Last user schedules interrupt disable */
+ if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
+ mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ);
+}
+EXPORT_SYMBOL(drm_vblank_put);
+
+void drm_vblank_off(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ dev->driver->disable_vblank(dev, crtc);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ dev->vblank_enabled[crtc] = 0;
+ dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc);
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+}
+EXPORT_SYMBOL(drm_vblank_off);
+
+/**
+ * drm_vblank_pre_modeset - account for vblanks across mode sets
+ * @dev: DRM device
+ * @crtc: CRTC in question
+ * @post: post or pre mode set?
+ *
+ * Account for vblank events across mode setting events, which will likely
+ * reset the hardware frame counter.
+ */
+void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
+{
+ /* vblank is not initialized (IRQ not installed ?) */
+ if (!dev->num_crtcs)
+ return;
+ /*
+ * To avoid all the problems that might happen if interrupts
+ * were enabled/disabled around or between these calls, we just
+ * have the kernel take a reference on the CRTC (just once though
+ * to avoid corrupting the count if multiple, mismatch calls occur),
+ * so that interrupts remain enabled in the interim.
+ */
+ if (!dev->vblank_inmodeset[crtc]) {
+ dev->vblank_inmodeset[crtc] = 0x1;
+ if (drm_vblank_get(dev, crtc) == 0)
+ dev->vblank_inmodeset[crtc] |= 0x2;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_pre_modeset);
+
+void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ if (dev->vblank_inmodeset[crtc]) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ dev->vblank_disable_allowed = 1;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (dev->vblank_inmodeset[crtc] & 0x2)
+ drm_vblank_put(dev, crtc);
+
+ dev->vblank_inmodeset[crtc] = 0;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_post_modeset);
+
+/**
+ * drm_modeset_ctl - handle vblank event counter changes across mode switch
+ * @DRM_IOCTL_ARGS: standard ioctl arguments
+ *
+ * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
+ * ioctls around modesetting so that any lost vblank events are accounted for.
+ *
+ * Generally the counter will reset across mode sets. If interrupts are
+ * enabled around this call, we don't have to do anything since the counter
+ * will have already been incremented.
+ */
+int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_modeset_ctl *modeset = data;
+ int crtc, ret = 0;
+
+ /* If drm_vblank_init() hasn't been called yet, just no-op */
+ if (!dev->num_crtcs)
+ goto out;
+
+ crtc = modeset->crtc;
+ if (crtc >= dev->num_crtcs) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (modeset->cmd) {
+ case _DRM_PRE_MODESET:
+ drm_vblank_pre_modeset(dev, crtc);
+ break;
+ case _DRM_POST_MODESET:
+ drm_vblank_post_modeset(dev, crtc);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ return ret;
+}
+
+static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
+ union drm_wait_vblank *vblwait,
+ struct drm_file *file_priv)
+{
+ struct drm_pending_vblank_event *e;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+ int ret;
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ ret = -ENOMEM;
+ goto err_put;
+ }
+
+ e->pipe = pipe;
+ e->base.pid = current->pid;
+ e->event.base.type = DRM_EVENT_VBLANK;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = vblwait->request.signal;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+ do_gettimeofday(&now);
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (file_priv->event_space < sizeof e->event) {
+ ret = -EBUSY;
+ goto err_unlock;
+ }
+
+ file_priv->event_space -= sizeof e->event;
+ seq = drm_vblank_count(dev, pipe);
+ if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1 << 23)) {
+ vblwait->request.sequence = seq + 1;
+ vblwait->reply.sequence = vblwait->request.sequence;
+ }
+
+ DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
+ vblwait->request.sequence, seq, pipe);
+
+ trace_drm_vblank_event_queued(current->pid, pipe,
+ vblwait->request.sequence);
+
+ e->event.sequence = vblwait->request.sequence;
+ if ((seq - vblwait->request.sequence) <= (1 << 23)) {
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, pipe);
+ list_add_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ trace_drm_vblank_event_delivered(current->pid, pipe,
+ vblwait->request.sequence);
+ } else {
+ list_add_tail(&e->base.link, &dev->vblank_event_list);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return 0;
+
+err_unlock:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+err_put:
+ drm_vblank_put(dev, pipe);
+ return ret;
+}
+
+/**
+ * Wait for VBLANK.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param data user argument, pointing to a drm_wait_vblank structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * This function enables the vblank interrupt on the pipe requested, then
+ * sleeps waiting for the requested sequence number to occur, and drops
+ * the vblank interrupt refcount afterwards. (vblank irq disable follows that
+ * after a timeout with no further vblank waits scheduled).
+ */
+int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ union drm_wait_vblank *vblwait = data;
+ int ret = 0;
+ unsigned int flags, seq, crtc;
+
+ if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
+ return -EINVAL;
+
+ if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
+ return -EINVAL;
+
+ if (vblwait->request.type &
+ ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) {
+ DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
+ vblwait->request.type,
+ (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK));
+ return -EINVAL;
+ }
+
+ flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
+ crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
+
+ if (crtc >= dev->num_crtcs)
+ return -EINVAL;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret) {
+ DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
+ return ret;
+ }
+ seq = drm_vblank_count(dev, crtc);
+
+ switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
+ case _DRM_VBLANK_RELATIVE:
+ vblwait->request.sequence += seq;
+ vblwait->request.type &= ~_DRM_VBLANK_RELATIVE;
+ case _DRM_VBLANK_ABSOLUTE:
+ break;
+ default:
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (flags & _DRM_VBLANK_EVENT)
+ return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
+
+ if ((flags & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1<<23)) {
+ vblwait->request.sequence = seq + 1;
+ }
+
+ DRM_DEBUG("waiting on vblank count %d, crtc %d\n",
+ vblwait->request.sequence, crtc);
+ dev->last_vblank_wait[crtc] = vblwait->request.sequence;
+ DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
+ (((drm_vblank_count(dev, crtc) -
+ vblwait->request.sequence) <= (1 << 23)) ||
+ !dev->irq_enabled));
+
+ if (ret != -EINTR) {
+ struct timeval now;
+
+ do_gettimeofday(&now);
+
+ vblwait->reply.tval_sec = now.tv_sec;
+ vblwait->reply.tval_usec = now.tv_usec;
+ vblwait->reply.sequence = drm_vblank_count(dev, crtc);
+ DRM_DEBUG("returning %d to client\n",
+ vblwait->reply.sequence);
+ } else {
+ DRM_DEBUG("vblank wait interrupted by signal\n");
+ }
+
+done:
+ drm_vblank_put(dev, crtc);
+ return ret;
+}
+
+void drm_handle_vblank_events(struct drm_device *dev, int crtc)
+{
+ struct drm_pending_vblank_event *e, *t;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+
+ do_gettimeofday(&now);
+ seq = drm_vblank_count(dev, crtc);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
+ if (e->pipe != crtc)
+ continue;
+ if ((seq - e->event.sequence) > (1<<23))
+ continue;
+
+ DRM_DEBUG("vblank event on %d, current %d\n",
+ e->event.sequence, seq);
+
+ e->event.sequence = seq;
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
+ e->event.sequence);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ trace_drm_vblank_event(crtc, seq);
+}
+
+/**
+ * drm_handle_vblank - handle a vblank event
+ * @dev: DRM device
+ * @crtc: where this event occurred
+ *
+ * Drivers should call this routine in their vblank interrupt handlers to
+ * update the vblank counter and send any signals that may be pending.
+ */
+void drm_handle_vblank(struct drm_device *dev, int crtc)
+{
+ if (!dev->num_crtcs)
+ return;
+
+ atomic_inc(&dev->_vblank_count[crtc]);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ drm_handle_vblank_events(dev, crtc);
+}
+EXPORT_SYMBOL(drm_handle_vblank);
--- /dev/null
+/**
+ * \file drm_lock.c
+ * IOCTLs for locking
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+static int drm_notifier(void *priv);
+
+static int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
+
+/**
+ * Lock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Add the current task to the lock wait queue, and attempt to take to lock.
+ */
+int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ DECLARE_WAITQUEUE(entry, current);
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+ int ret = 0;
+
+ ++file_priv->lock_count;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock->context, task_pid_nr(current),
+ master->lock.hw_lock->lock, lock->flags);
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE))
+ if (lock->context < 0)
+ return -EINVAL;
+
+ add_wait_queue(&master->lock.lock_queue, &entry);
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters++;
+ spin_unlock_bh(&master->lock.spinlock);
+
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ if (!master->lock.hw_lock) {
+ /* Device has been unregistered */
+ send_sig(SIGTERM, current, 0);
+ ret = -EINTR;
+ break;
+ }
+ if (drm_lock_take(&master->lock, lock->context)) {
+ master->lock.file_priv = file_priv;
+ master->lock.lock_time = jiffies;
+ atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ mutex_unlock(&drm_global_mutex);
+ schedule();
+ mutex_lock(&drm_global_mutex);
+ if (signal_pending(current)) {
+ ret = -EINTR;
+ break;
+ }
+ }
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters--;
+ spin_unlock_bh(&master->lock.spinlock);
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&master->lock.lock_queue, &entry);
+
+ DRM_DEBUG("%d %s\n", lock->context,
+ ret ? "interrupted" : "has lock");
+ if (ret) return ret;
+
+ /* don't set the block all signals on the master process for now
+ * really probably not the correct answer but lets us debug xkb
+ * xserver for now */
+ if (!file_priv->is_master) {
+ sigemptyset(&dev->sigmask);
+ sigaddset(&dev->sigmask, SIGSTOP);
+ sigaddset(&dev->sigmask, SIGTSTP);
+ sigaddset(&dev->sigmask, SIGTTIN);
+ sigaddset(&dev->sigmask, SIGTTOU);
+ dev->sigdata.context = lock->context;
+ dev->sigdata.lock = master->lock.hw_lock;
+ block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
+ }
+
+ if (dev->driver->dma_quiescent && (lock->flags & _DRM_LOCK_QUIESCENT))
+ {
+ if (dev->driver->dma_quiescent(dev)) {
+ DRM_DEBUG("%d waiting for DMA quiescent\n",
+ lock->context);
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Unlock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Transfer and free the lock.
+ */
+int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
+
+ if (drm_lock_free(&master->lock, lock->context)) {
+ /* FIXME: Should really bail out here. */
+ }
+
+ unblock_all_signals();
+ return 0;
+}
+
+/**
+ * Take the heavyweight lock.
+ *
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return one if the lock is held, or zero otherwise.
+ *
+ * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+static
+int drm_lock_take(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ do {
+ old = *lock;
+ if (old & _DRM_LOCK_HELD)
+ new = old | _DRM_LOCK_CONT;
+ else {
+ new = context | _DRM_LOCK_HELD |
+ ((lock_data->user_waiters + lock_data->kernel_waiters > 1) ?
+ _DRM_LOCK_CONT : 0);
+ }
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ spin_unlock_bh(&lock_data->spinlock);
+
+ if (_DRM_LOCKING_CONTEXT(old) == context) {
+ if (old & _DRM_LOCK_HELD) {
+ if (context != DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("%d holds heavyweight lock\n",
+ context);
+ }
+ return 0;
+ }
+ }
+
+ if ((_DRM_LOCKING_CONTEXT(new)) == context && (new & _DRM_LOCK_HELD)) {
+ /* Have lock */
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * This takes a lock forcibly and hands it to context. Should ONLY be used
+ * inside *_unlock to give lock to kernel before calling *_dma_schedule.
+ *
+ * \param dev DRM device.
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return always one.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+static int drm_lock_transfer(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ lock_data->file_priv = NULL;
+ do {
+ old = *lock;
+ new = context | _DRM_LOCK_HELD;
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ return 1;
+}
+
+/**
+ * Free lock.
+ *
+ * \param dev DRM device.
+ * \param lock lock.
+ * \param context context.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task
+ * waiting on the lock queue.
+ */
+int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (lock_data->kernel_waiters != 0) {
+ drm_lock_transfer(lock_data, 0);
+ lock_data->idle_has_lock = 1;
+ spin_unlock_bh(&lock_data->spinlock);
+ return 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+
+ do {
+ old = *lock;
+ new = _DRM_LOCKING_CONTEXT(old);
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+
+ if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
+ DRM_ERROR("%d freed heavyweight lock held by %d\n",
+ context, _DRM_LOCKING_CONTEXT(old));
+ return 1;
+ }
+ wake_up_interruptible(&lock_data->lock_queue);
+ return 0;
+}
+
+/**
+ * If we get here, it means that the process has called DRM_IOCTL_LOCK
+ * without calling DRM_IOCTL_UNLOCK.
+ *
+ * If the lock is not held, then let the signal proceed as usual. If the lock
+ * is held, then set the contended flag and keep the signal blocked.
+ *
+ * \param priv pointer to a drm_sigdata structure.
+ * \return one if the signal should be delivered normally, or zero if the
+ * signal should be blocked.
+ */
+static int drm_notifier(void *priv)
+{
+ struct drm_sigdata *s = (struct drm_sigdata *) priv;
+ unsigned int old, new, prev;
+
+ /* Allow signal delivery if lock isn't held */
+ if (!s->lock || !_DRM_LOCK_IS_HELD(s->lock->lock)
+ || _DRM_LOCKING_CONTEXT(s->lock->lock) != s->context)
+ return 1;
+
+ /* Otherwise, set flag to force call to
+ drmUnlock */
+ do {
+ old = s->lock->lock;
+ new = old | _DRM_LOCK_CONT;
+ prev = cmpxchg(&s->lock->lock, old, new);
+ } while (prev != old);
+ return 0;
+}
+
+/**
+ * This function returns immediately and takes the hw lock
+ * with the kernel context if it is free, otherwise it gets the highest priority when and if
+ * it is eventually released.
+ *
+ * This guarantees that the kernel will _eventually_ have the lock _unless_ it is held
+ * by a blocked process. (In the latter case an explicit wait for the hardware lock would cause
+ * a deadlock, which is why the "idlelock" was invented).
+ *
+ * This should be sufficient to wait for GPU idle without
+ * having to worry about starvation.
+ */
+
+void drm_idlelock_take(struct drm_lock_data *lock_data)
+{
+ int ret = 0;
+
+ spin_lock_bh(&lock_data->spinlock);
+ lock_data->kernel_waiters++;
+ if (!lock_data->idle_has_lock) {
+
+ spin_unlock_bh(&lock_data->spinlock);
+ ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT);
+ spin_lock_bh(&lock_data->spinlock);
+
+ if (ret == 1)
+ lock_data->idle_has_lock = 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+
+void drm_idlelock_release(struct drm_lock_data *lock_data)
+{
+ unsigned int old, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (--lock_data->kernel_waiters == 0) {
+ if (lock_data->idle_has_lock) {
+ do {
+ old = *lock;
+ prev = cmpxchg(lock, old, DRM_KERNEL_CONTEXT);
+ } while (prev != old);
+ wake_up_interruptible(&lock_data->lock_queue);
+ lock_data->idle_has_lock = 0;
+ }
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+
+int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ return (file_priv->lock_count && master->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) &&
+ master->lock.file_priv == file_priv);
+}
--- /dev/null
+/**
+ * \file drm_memory.c
+ * Memory management wrappers for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/highmem.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/%dev%/mem" is read.
+ *
+ * \param buf output buffer.
+ * \param start start of output data.
+ * \param offset requested start offset.
+ * \param len requested number of bytes.
+ * \param eof whether there is no more data to return.
+ * \param data private data.
+ * \return number of written bytes.
+ *
+ * No-op.
+ */
+int drm_mem_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data)
+{
+ return 0;
+}
+
+#if __OS_HAS_AGP
+static void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ unsigned long i, num_pages =
+ PAGE_ALIGN(size) / PAGE_SIZE;
+ struct drm_agp_mem *agpmem;
+ struct page **page_map;
+ struct page **phys_page_map;
+ void *addr;
+
+ size = PAGE_ALIGN(size);
+
+#ifdef __alpha__
+ offset -= dev->hose->mem_space->start;
+#endif
+
+ list_for_each_entry(agpmem, &dev->agp->memory, head)
+ if (agpmem->bound <= offset
+ && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
+ (offset + size))
+ break;
+ if (&agpmem->head == &dev->agp->memory)
+ return NULL;
+
+ /*
+ * OK, we're mapping AGP space on a chipset/platform on which memory accesses by
+ * the CPU do not get remapped by the GART. We fix this by using the kernel's
+ * page-table instead (that's probably faster anyhow...).
+ */
+ /* note: use vmalloc() because num_pages could be large... */
+ page_map = vmalloc(num_pages * sizeof(struct page *));
+ if (!page_map)
+ return NULL;
+
+ phys_page_map = (agpmem->memory->pages + (offset - agpmem->bound) / PAGE_SIZE);
+ for (i = 0; i < num_pages; ++i)
+ page_map[i] = phys_page_map[i];
+ addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
+ vfree(page_map);
+
+ return addr;
+}
+
+/** Wrapper around agp_free_memory() */
+void drm_free_agp(DRM_AGP_MEM * handle, int pages)
+{
+ agp_free_memory(handle);
+}
+EXPORT_SYMBOL(drm_free_agp);
+
+/** Wrapper around agp_bind_memory() */
+int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
+{
+ return agp_bind_memory(handle, start);
+}
+
+/** Wrapper around agp_unbind_memory() */
+int drm_unbind_agp(DRM_AGP_MEM * handle)
+{
+ return agp_unbind_memory(handle);
+}
+EXPORT_SYMBOL(drm_unbind_agp);
+
+#else /* __OS_HAS_AGP */
+static inline void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ return NULL;
+}
+
+#endif /* agp */
+
+void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap);
+
+void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap_wc(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap_wc);
+
+void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (!map->handle || !map->size)
+ return;
+
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ vunmap(map->handle);
+ else
+ iounmap(map->handle);
+}
+EXPORT_SYMBOL(drm_core_ioremapfree);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+
+/*
+ * Generic simple memory manager implementation. Intended to be used as a base
+ * class implementation for more advanced memory managers.
+ *
+ * Note that the algorithm used is quite simple and there might be substantial
+ * performance gains if a smarter free list is implemented. Currently it is just an
+ * unordered stack of free regions. This could easily be improved if an RB-tree
+ * is used instead. At least if we expect heavy fragmentation.
+ *
+ * Aligned allocations can also see improvement.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_mm.h"
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+
+#define MM_UNUSED_TARGET 4
+
+static struct drm_mm_node *drm_mm_kmalloc(struct drm_mm *mm, int atomic)
+{
+ struct drm_mm_node *child;
+
+ if (atomic)
+ child = kzalloc(sizeof(*child), GFP_ATOMIC);
+ else
+ child = kzalloc(sizeof(*child), GFP_KERNEL);
+
+ if (unlikely(child == NULL)) {
+ spin_lock(&mm->unused_lock);
+ if (list_empty(&mm->unused_nodes))
+ child = NULL;
+ else {
+ child =
+ list_entry(mm->unused_nodes.next,
+ struct drm_mm_node, free_stack);
+ list_del(&child->free_stack);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+ }
+ return child;
+}
+
+/* drm_mm_pre_get() - pre allocate drm_mm_node structure
+ * drm_mm: memory manager struct we are pre-allocating for
+ *
+ * Returns 0 on success or -ENOMEM if allocation fails.
+ */
+int drm_mm_pre_get(struct drm_mm *mm)
+{
+ struct drm_mm_node *node;
+
+ spin_lock(&mm->unused_lock);
+ while (mm->num_unused < MM_UNUSED_TARGET) {
+ spin_unlock(&mm->unused_lock);
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ spin_lock(&mm->unused_lock);
+
+ if (unlikely(node == NULL)) {
+ int ret = (mm->num_unused < 2) ? -ENOMEM : 0;
+ spin_unlock(&mm->unused_lock);
+ return ret;
+ }
+ ++mm->num_unused;
+ list_add_tail(&node->free_stack, &mm->unused_nodes);
+ }
+ spin_unlock(&mm->unused_lock);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_pre_get);
+
+static int drm_mm_create_tail_node(struct drm_mm *mm,
+ unsigned long start,
+ unsigned long size, int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(mm, atomic);
+ if (unlikely(child == NULL))
+ return -ENOMEM;
+
+ child->free = 1;
+ child->size = size;
+ child->start = start;
+ child->mm = mm;
+
+ list_add_tail(&child->node_list, &mm->node_list);
+ list_add_tail(&child->free_stack, &mm->free_stack);
+
+ return 0;
+}
+
+static struct drm_mm_node *drm_mm_split_at_start(struct drm_mm_node *parent,
+ unsigned long size,
+ int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(parent->mm, atomic);
+ if (unlikely(child == NULL))
+ return NULL;
+
+ INIT_LIST_HEAD(&child->free_stack);
+
+ child->size = size;
+ child->start = parent->start;
+ child->mm = parent->mm;
+
+ list_add_tail(&child->node_list, &parent->node_list);
+ INIT_LIST_HEAD(&child->free_stack);
+
+ parent->size -= size;
+ parent->start += size;
+ return child;
+}
+
+
+struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ int atomic)
+{
+
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+
+ if (alignment)
+ tmp = node->start % alignment;
+
+ if (tmp) {
+ align_splitoff =
+ drm_mm_split_at_start(node, alignment - tmp, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->free_stack);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_generic);
+
+struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int atomic)
+{
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+ unsigned wasted = 0;
+
+ if (node->start < start)
+ wasted += start - node->start;
+ if (alignment)
+ tmp = ((node->start + wasted) % alignment);
+
+ if (tmp)
+ wasted += alignment - tmp;
+ if (wasted) {
+ align_splitoff = drm_mm_split_at_start(node, wasted, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->free_stack);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_range_generic);
+
+/*
+ * Put a block. Merge with the previous and / or next block if they are free.
+ * Otherwise add to the free stack.
+ */
+
+void drm_mm_put_block(struct drm_mm_node *cur)
+{
+
+ struct drm_mm *mm = cur->mm;
+ struct list_head *cur_head = &cur->node_list;
+ struct list_head *root_head = &mm->node_list;
+ struct drm_mm_node *prev_node = NULL;
+ struct drm_mm_node *next_node;
+
+ int merged = 0;
+
+ BUG_ON(cur->scanned_block || cur->scanned_prev_free
+ || cur->scanned_next_free);
+
+ if (cur_head->prev != root_head) {
+ prev_node =
+ list_entry(cur_head->prev, struct drm_mm_node, node_list);
+ if (prev_node->free) {
+ prev_node->size += cur->size;
+ merged = 1;
+ }
+ }
+ if (cur_head->next != root_head) {
+ next_node =
+ list_entry(cur_head->next, struct drm_mm_node, node_list);
+ if (next_node->free) {
+ if (merged) {
+ prev_node->size += next_node->size;
+ list_del(&next_node->node_list);
+ list_del(&next_node->free_stack);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&next_node->free_stack,
+ &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(next_node);
+ spin_unlock(&mm->unused_lock);
+ } else {
+ next_node->size += cur->size;
+ next_node->start = cur->start;
+ merged = 1;
+ }
+ }
+ }
+ if (!merged) {
+ cur->free = 1;
+ list_add(&cur->free_stack, &mm->free_stack);
+ } else {
+ list_del(&cur->node_list);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&cur->free_stack, &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(cur);
+ spin_unlock(&mm->unused_lock);
+ }
+}
+
+EXPORT_SYMBOL(drm_mm_put_block);
+
+static int check_free_hole(unsigned long start, unsigned long end,
+ unsigned long size, unsigned alignment)
+{
+ unsigned wasted = 0;
+
+ if (end - start < size)
+ return 0;
+
+ if (alignment) {
+ unsigned tmp = start % alignment;
+ if (tmp)
+ wasted = alignment - tmp;
+ }
+
+ if (end >= start + size + wasted) {
+ return 1;
+ }
+
+ return 0;
+}
+
+struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment, int best_match)
+{
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+
+ BUG_ON(mm->scanned_blocks);
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each_entry(entry, &mm->free_stack, free_stack) {
+ if (!check_free_hole(entry->start, entry->start + entry->size,
+ size, alignment))
+ continue;
+
+ if (!best_match)
+ return entry;
+
+ if (entry->size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free);
+
+struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int best_match)
+{
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+
+ BUG_ON(mm->scanned_blocks);
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each_entry(entry, &mm->free_stack, free_stack) {
+ unsigned long adj_start = entry->start < start ?
+ start : entry->start;
+ unsigned long adj_end = entry->start + entry->size > end ?
+ end : entry->start + entry->size;
+
+ if (!check_free_hole(adj_start, adj_end, size, alignment))
+ continue;
+
+ if (!best_match)
+ return entry;
+
+ if (entry->size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free_in_range);
+
+/**
+ * Initializa lru scanning.
+ *
+ * This simply sets up the scanning routines with the parameters for the desired
+ * hole.
+ *
+ * Warning: As long as the scan list is non-empty, no other operations than
+ * adding/removing nodes to/from the scan list are allowed.
+ */
+void drm_mm_init_scan(struct drm_mm *mm, unsigned long size,
+ unsigned alignment)
+{
+ mm->scan_alignment = alignment;
+ mm->scan_size = size;
+ mm->scanned_blocks = 0;
+ mm->scan_hit_start = 0;
+ mm->scan_hit_size = 0;
+}
+EXPORT_SYMBOL(drm_mm_init_scan);
+
+/**
+ * Add a node to the scan list that might be freed to make space for the desired
+ * hole.
+ *
+ * Returns non-zero, if a hole has been found, zero otherwise.
+ */
+int drm_mm_scan_add_block(struct drm_mm_node *node)
+{
+ struct drm_mm *mm = node->mm;
+ struct list_head *prev_free, *next_free;
+ struct drm_mm_node *prev_node, *next_node;
+
+ mm->scanned_blocks++;
+
+ prev_free = next_free = NULL;
+
+ BUG_ON(node->free);
+ node->scanned_block = 1;
+ node->free = 1;
+
+ if (node->node_list.prev != &mm->node_list) {
+ prev_node = list_entry(node->node_list.prev, struct drm_mm_node,
+ node_list);
+
+ if (prev_node->free) {
+ list_del(&prev_node->node_list);
+
+ node->start = prev_node->start;
+ node->size += prev_node->size;
+
+ prev_node->scanned_prev_free = 1;
+
+ prev_free = &prev_node->free_stack;
+ }
+ }
+
+ if (node->node_list.next != &mm->node_list) {
+ next_node = list_entry(node->node_list.next, struct drm_mm_node,
+ node_list);
+
+ if (next_node->free) {
+ list_del(&next_node->node_list);
+
+ node->size += next_node->size;
+
+ next_node->scanned_next_free = 1;
+
+ next_free = &next_node->free_stack;
+ }
+ }
+
+ /* The free_stack list is not used for allocated objects, so these two
+ * pointers can be abused (as long as no allocations in this memory
+ * manager happens). */
+ node->free_stack.prev = prev_free;
+ node->free_stack.next = next_free;
+
+ if (check_free_hole(node->start, node->start + node->size,
+ mm->scan_size, mm->scan_alignment)) {
+ mm->scan_hit_start = node->start;
+ mm->scan_hit_size = node->size;
+
+ return 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_scan_add_block);
+
+/**
+ * Remove a node from the scan list.
+ *
+ * Nodes _must_ be removed in the exact same order from the scan list as they
+ * have been added, otherwise the internal state of the memory manager will be
+ * corrupted.
+ *
+ * When the scan list is empty, the selected memory nodes can be freed. An
+ * immediatly following drm_mm_search_free with best_match = 0 will then return
+ * the just freed block (because its at the top of the free_stack list).
+ *
+ * Returns one if this block should be evicted, zero otherwise. Will always
+ * return zero when no hole has been found.
+ */
+int drm_mm_scan_remove_block(struct drm_mm_node *node)
+{
+ struct drm_mm *mm = node->mm;
+ struct drm_mm_node *prev_node, *next_node;
+
+ mm->scanned_blocks--;
+
+ BUG_ON(!node->scanned_block);
+ node->scanned_block = 0;
+ node->free = 0;
+
+ prev_node = list_entry(node->free_stack.prev, struct drm_mm_node,
+ free_stack);
+ next_node = list_entry(node->free_stack.next, struct drm_mm_node,
+ free_stack);
+
+ if (prev_node) {
+ BUG_ON(!prev_node->scanned_prev_free);
+ prev_node->scanned_prev_free = 0;
+
+ list_add_tail(&prev_node->node_list, &node->node_list);
+
+ node->start = prev_node->start + prev_node->size;
+ node->size -= prev_node->size;
+ }
+
+ if (next_node) {
+ BUG_ON(!next_node->scanned_next_free);
+ next_node->scanned_next_free = 0;
+
+ list_add(&next_node->node_list, &node->node_list);
+
+ node->size -= next_node->size;
+ }
+
+ INIT_LIST_HEAD(&node->free_stack);
+
+ /* Only need to check for containement because start&size for the
+ * complete resulting free block (not just the desired part) is
+ * stored. */
+ if (node->start >= mm->scan_hit_start &&
+ node->start + node->size
+ <= mm->scan_hit_start + mm->scan_hit_size) {
+ return 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_scan_remove_block);
+
+int drm_mm_clean(struct drm_mm * mm)
+{
+ struct list_head *head = &mm->node_list;
+
+ return (head->next->next == head);
+}
+EXPORT_SYMBOL(drm_mm_clean);
+
+int drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
+{
+ INIT_LIST_HEAD(&mm->node_list);
+ INIT_LIST_HEAD(&mm->free_stack);
+ INIT_LIST_HEAD(&mm->unused_nodes);
+ mm->num_unused = 0;
+ mm->scanned_blocks = 0;
+ spin_lock_init(&mm->unused_lock);
+
+ return drm_mm_create_tail_node(mm, start, size, 0);
+}
+EXPORT_SYMBOL(drm_mm_init);
+
+void drm_mm_takedown(struct drm_mm * mm)
+{
+ struct list_head *bnode = mm->free_stack.next;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *next;
+
+ entry = list_entry(bnode, struct drm_mm_node, free_stack);
+
+ if (entry->node_list.next != &mm->node_list ||
+ entry->free_stack.next != &mm->free_stack) {
+ DRM_ERROR("Memory manager not clean. Delaying takedown\n");
+ return;
+ }
+
+ list_del(&entry->free_stack);
+ list_del(&entry->node_list);
+ kfree(entry);
+
+ spin_lock(&mm->unused_lock);
+ list_for_each_entry_safe(entry, next, &mm->unused_nodes, free_stack) {
+ list_del(&entry->free_stack);
+ kfree(entry);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+
+ BUG_ON(mm->num_unused != 0);
+}
+EXPORT_SYMBOL(drm_mm_takedown);
+
+void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->node_list, node_list) {
+ printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8ld: %s\n",
+ prefix, entry->start, entry->start + entry->size,
+ entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ printk(KERN_DEBUG "%s total: %d, used %d free %d\n", prefix, total,
+ total_used, total_free);
+}
+EXPORT_SYMBOL(drm_mm_debug_table);
+
+#if defined(CONFIG_DEBUG_FS)
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->node_list, node_list) {
+ seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: %s\n", entry->start, entry->start + entry->size, entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ seq_printf(m, "total: %d, used %d free %d\n", total, total_used, total_free);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_dump_table);
+#endif
--- /dev/null
+/*
+ * Copyright © 1997-2003 by The XFree86 Project, Inc.
+ * Copyright © 2007 Dave Airlie
+ * Copyright © 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2005-2006 Luc Verhaegen
+ * Copyright (c) 2001, Andy Ritger aritger@nvidia.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+#include <linux/list.h>
+#include <linux/list_sort.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+
+/**
+ * drm_mode_debug_printmodeline - debug print a mode
+ * @dev: DRM device
+ * @mode: mode to print
+ *
+ * LOCKING:
+ * None.
+ *
+ * Describe @mode using DRM_DEBUG.
+ */
+void drm_mode_debug_printmodeline(struct drm_display_mode *mode)
+{
+ DRM_DEBUG_KMS("Modeline %d:\"%s\" %d %d %d %d %d %d %d %d %d %d "
+ "0x%x 0x%x\n",
+ mode->base.id, mode->name, mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+}
+EXPORT_SYMBOL(drm_mode_debug_printmodeline);
+
+/**
+ * drm_cvt_mode -create a modeline based on CVT algorithm
+ * @dev: DRM device
+ * @hdisplay: hdisplay size
+ * @vdisplay: vdisplay size
+ * @vrefresh : vrefresh rate
+ * @reduced : Whether the GTF calculation is simplified
+ * @interlaced:Whether the interlace is supported
+ *
+ * LOCKING:
+ * none.
+ *
+ * return the modeline based on CVT algorithm
+ *
+ * This function is called to generate the modeline based on CVT algorithm
+ * according to the hdisplay, vdisplay, vrefresh.
+ * It is based from the VESA(TM) Coordinated Video Timing Generator by
+ * Graham Loveridge April 9, 2003 available at
+ * http://www.elo.utfsm.cl/~elo212/docs/CVTd6r1.xls
+ *
+ * And it is copied from xf86CVTmode in xserver/hw/xfree86/modes/xf86cvt.c.
+ * What I have done is to translate it by using integer calculation.
+ */
+#define HV_FACTOR 1000
+struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
+ int vdisplay, int vrefresh,
+ bool reduced, bool interlaced, bool margins)
+{
+ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define CVT_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define CVT_H_GRANULARITY 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define CVT_MIN_V_PORCH 3
+ /* 4) Minimum number of vertical back porch lines - default 6 */
+#define CVT_MIN_V_BPORCH 6
+ /* Pixel Clock step (kHz) */
+#define CVT_CLOCK_STEP 250
+ struct drm_display_mode *drm_mode;
+ unsigned int vfieldrate, hperiod;
+ int hdisplay_rnd, hmargin, vdisplay_rnd, vmargin, vsync;
+ int interlace;
+
+ /* allocate the drm_display_mode structure. If failure, we will
+ * return directly
+ */
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* the CVT default refresh rate is 60Hz */
+ if (!vrefresh)
+ vrefresh = 60;
+
+ /* the required field fresh rate */
+ if (interlaced)
+ vfieldrate = vrefresh * 2;
+ else
+ vfieldrate = vrefresh;
+
+ /* horizontal pixels */
+ hdisplay_rnd = hdisplay - (hdisplay % CVT_H_GRANULARITY);
+
+ /* determine the left&right borders */
+ hmargin = 0;
+ if (margins) {
+ hmargin = hdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+ hmargin -= hmargin % CVT_H_GRANULARITY;
+ }
+ /* find the total active pixels */
+ drm_mode->hdisplay = hdisplay_rnd + 2 * hmargin;
+
+ /* find the number of lines per field */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* find the top & bottom borders */
+ vmargin = 0;
+ if (margins)
+ vmargin = vdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+
+ drm_mode->vdisplay = vdisplay + 2 * vmargin;
+
+ /* Interlaced */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* Determine VSync Width from aspect ratio */
+ if (!(vdisplay % 3) && ((vdisplay * 4 / 3) == hdisplay))
+ vsync = 4;
+ else if (!(vdisplay % 9) && ((vdisplay * 16 / 9) == hdisplay))
+ vsync = 5;
+ else if (!(vdisplay % 10) && ((vdisplay * 16 / 10) == hdisplay))
+ vsync = 6;
+ else if (!(vdisplay % 4) && ((vdisplay * 5 / 4) == hdisplay))
+ vsync = 7;
+ else if (!(vdisplay % 9) && ((vdisplay * 15 / 9) == hdisplay))
+ vsync = 7;
+ else /* custom */
+ vsync = 10;
+
+ if (!reduced) {
+ /* simplify the GTF calculation */
+ /* 4) Minimum time of vertical sync + back porch interval (µs)
+ * default 550.0
+ */
+ int tmp1, tmp2;
+#define CVT_MIN_VSYNC_BP 550
+ /* 3) Nominal HSync width (% of line period) - default 8 */
+#define CVT_HSYNC_PERCENTAGE 8
+ unsigned int hblank_percentage;
+ int vsyncandback_porch, vback_porch, hblank;
+
+ /* estimated the horizontal period */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_MIN_VSYNC_BP * HV_FACTOR * vfieldrate;
+ tmp2 = (vdisplay_rnd + 2 * vmargin + CVT_MIN_V_PORCH) * 2 +
+ interlace;
+ hperiod = tmp1 * 2 / (tmp2 * vfieldrate);
+
+ tmp1 = CVT_MIN_VSYNC_BP * HV_FACTOR / hperiod + 1;
+ /* 9. Find number of lines in sync + backporch */
+ if (tmp1 < (vsync + CVT_MIN_V_PORCH))
+ vsyncandback_porch = vsync + CVT_MIN_V_PORCH;
+ else
+ vsyncandback_porch = tmp1;
+ /* 10. Find number of lines in back porch */
+ vback_porch = vsyncandback_porch - vsync;
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin +
+ vsyncandback_porch + CVT_MIN_V_PORCH;
+ /* 5) Definition of Horizontal blanking time limitation */
+ /* Gradient (%/kHz) - default 600 */
+#define CVT_M_FACTOR 600
+ /* Offset (%) - default 40 */
+#define CVT_C_FACTOR 40
+ /* Blanking time scaling factor - default 128 */
+#define CVT_K_FACTOR 128
+ /* Scaling factor weighting - default 20 */
+#define CVT_J_FACTOR 20
+#define CVT_M_PRIME (CVT_M_FACTOR * CVT_K_FACTOR / 256)
+#define CVT_C_PRIME ((CVT_C_FACTOR - CVT_J_FACTOR) * CVT_K_FACTOR / 256 + \
+ CVT_J_FACTOR)
+ /* 12. Find ideal blanking duty cycle from formula */
+ hblank_percentage = CVT_C_PRIME * HV_FACTOR - CVT_M_PRIME *
+ hperiod / 1000;
+ /* 13. Blanking time */
+ if (hblank_percentage < 20 * HV_FACTOR)
+ hblank_percentage = 20 * HV_FACTOR;
+ hblank = drm_mode->hdisplay * hblank_percentage /
+ (100 * HV_FACTOR - hblank_percentage);
+ hblank -= hblank % (2 * CVT_H_GRANULARITY);
+ /* 14. find the total pixes per line */
+ drm_mode->htotal = drm_mode->hdisplay + hblank;
+ drm_mode->hsync_end = drm_mode->hdisplay + hblank / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end -
+ (drm_mode->htotal * CVT_HSYNC_PERCENTAGE) / 100;
+ drm_mode->hsync_start += CVT_H_GRANULARITY -
+ drm_mode->hsync_start % CVT_H_GRANULARITY;
+ /* fill the Vsync values */
+ drm_mode->vsync_start = drm_mode->vdisplay + CVT_MIN_V_PORCH;
+ drm_mode->vsync_end = drm_mode->vsync_start + vsync;
+ } else {
+ /* Reduced blanking */
+ /* Minimum vertical blanking interval time (µs)- default 460 */
+#define CVT_RB_MIN_VBLANK 460
+ /* Fixed number of clocks for horizontal sync */
+#define CVT_RB_H_SYNC 32
+ /* Fixed number of clocks for horizontal blanking */
+#define CVT_RB_H_BLANK 160
+ /* Fixed number of lines for vertical front porch - default 3*/
+#define CVT_RB_VFPORCH 3
+ int vbilines;
+ int tmp1, tmp2;
+ /* 8. Estimate Horizontal period. */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_RB_MIN_VBLANK * HV_FACTOR * vfieldrate;
+ tmp2 = vdisplay_rnd + 2 * vmargin;
+ hperiod = tmp1 / (tmp2 * vfieldrate);
+ /* 9. Find number of lines in vertical blanking */
+ vbilines = CVT_RB_MIN_VBLANK * HV_FACTOR / hperiod + 1;
+ /* 10. Check if vertical blanking is sufficient */
+ if (vbilines < (CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH))
+ vbilines = CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH;
+ /* 11. Find total number of lines in vertical field */
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin + vbilines;
+ /* 12. Find total number of pixels in a line */
+ drm_mode->htotal = drm_mode->hdisplay + CVT_RB_H_BLANK;
+ /* Fill in HSync values */
+ drm_mode->hsync_end = drm_mode->hdisplay + CVT_RB_H_BLANK / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end - CVT_RB_H_SYNC;
+ /* Fill in VSync values */
+ drm_mode->vsync_start = drm_mode->vdisplay + CVT_RB_VFPORCH;
+ drm_mode->vsync_end = drm_mode->vsync_start + vsync;
+ }
+ /* 15/13. Find pixel clock frequency (kHz for xf86) */
+ drm_mode->clock = drm_mode->htotal * HV_FACTOR * 1000 / hperiod;
+ drm_mode->clock -= drm_mode->clock % CVT_CLOCK_STEP;
+ /* 18/16. Find actual vertical frame frequency */
+ /* ignore - just set the mode flag for interlaced */
+ if (interlaced) {
+ drm_mode->vtotal *= 2;
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+ }
+ /* Fill the mode line name */
+ drm_mode_set_name(drm_mode);
+ if (reduced)
+ drm_mode->flags |= (DRM_MODE_FLAG_PHSYNC |
+ DRM_MODE_FLAG_NVSYNC);
+ else
+ drm_mode->flags |= (DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_NHSYNC);
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_cvt_mode);
+
+/**
+ * drm_gtf_mode_complex - create the modeline based on full GTF algorithm
+ *
+ * @dev :drm device
+ * @hdisplay :hdisplay size
+ * @vdisplay :vdisplay size
+ * @vrefresh :vrefresh rate.
+ * @interlaced :whether the interlace is supported
+ * @margins :desired margin size
+ * @GTF_[MCKJ] :extended GTF formula parameters
+ *
+ * LOCKING.
+ * none.
+ *
+ * return the modeline based on full GTF algorithm.
+ *
+ * GTF feature blocks specify C and J in multiples of 0.5, so we pass them
+ * in here multiplied by two. For a C of 40, pass in 80.
+ */
+struct drm_display_mode *
+drm_gtf_mode_complex(struct drm_device *dev, int hdisplay, int vdisplay,
+ int vrefresh, bool interlaced, int margins,
+ int GTF_M, int GTF_2C, int GTF_K, int GTF_2J)
+{ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define GTF_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define GTF_CELL_GRAN 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define GTF_MIN_V_PORCH 1
+ /* width of vsync in lines */
+#define V_SYNC_RQD 3
+ /* width of hsync as % of total line */
+#define H_SYNC_PERCENT 8
+ /* min time of vsync + back porch (microsec) */
+#define MIN_VSYNC_PLUS_BP 550
+ /* C' and M' are part of the Blanking Duty Cycle computation */
+#define GTF_C_PRIME ((((GTF_2C - GTF_2J) * GTF_K / 256) + GTF_2J) / 2)
+#define GTF_M_PRIME (GTF_K * GTF_M / 256)
+ struct drm_display_mode *drm_mode;
+ unsigned int hdisplay_rnd, vdisplay_rnd, vfieldrate_rqd;
+ int top_margin, bottom_margin;
+ int interlace;
+ unsigned int hfreq_est;
+ int vsync_plus_bp, vback_porch;
+ unsigned int vtotal_lines, vfieldrate_est, hperiod;
+ unsigned int vfield_rate, vframe_rate;
+ int left_margin, right_margin;
+ unsigned int total_active_pixels, ideal_duty_cycle;
+ unsigned int hblank, total_pixels, pixel_freq;
+ int hsync, hfront_porch, vodd_front_porch_lines;
+ unsigned int tmp1, tmp2;
+
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* 1. In order to give correct results, the number of horizontal
+ * pixels requested is first processed to ensure that it is divisible
+ * by the character size, by rounding it to the nearest character
+ * cell boundary:
+ */
+ hdisplay_rnd = (hdisplay + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hdisplay_rnd = hdisplay_rnd * GTF_CELL_GRAN;
+
+ /* 2. If interlace is requested, the number of vertical lines assumed
+ * by the calculation must be halved, as the computation calculates
+ * the number of vertical lines per field.
+ */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* 3. Find the frame rate required: */
+ if (interlaced)
+ vfieldrate_rqd = vrefresh * 2;
+ else
+ vfieldrate_rqd = vrefresh;
+
+ /* 4. Find number of lines in Top margin: */
+ top_margin = 0;
+ if (margins)
+ top_margin = (vdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ /* 5. Find number of lines in bottom margin: */
+ bottom_margin = top_margin;
+
+ /* 6. If interlace is required, then set variable interlace: */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* 7. Estimate the Horizontal frequency */
+ {
+ tmp1 = (1000000 - MIN_VSYNC_PLUS_BP * vfieldrate_rqd) / 500;
+ tmp2 = (vdisplay_rnd + 2 * top_margin + GTF_MIN_V_PORCH) *
+ 2 + interlace;
+ hfreq_est = (tmp2 * 1000 * vfieldrate_rqd) / tmp1;
+ }
+
+ /* 8. Find the number of lines in V sync + back porch */
+ /* [V SYNC+BP] = RINT(([MIN VSYNC+BP] * hfreq_est / 1000000)) */
+ vsync_plus_bp = MIN_VSYNC_PLUS_BP * hfreq_est / 1000;
+ vsync_plus_bp = (vsync_plus_bp + 500) / 1000;
+ /* 9. Find the number of lines in V back porch alone: */
+ vback_porch = vsync_plus_bp - V_SYNC_RQD;
+ /* 10. Find the total number of lines in Vertical field period: */
+ vtotal_lines = vdisplay_rnd + top_margin + bottom_margin +
+ vsync_plus_bp + GTF_MIN_V_PORCH;
+ /* 11. Estimate the Vertical field frequency: */
+ vfieldrate_est = hfreq_est / vtotal_lines;
+ /* 12. Find the actual horizontal period: */
+ hperiod = 1000000 / (vfieldrate_rqd * vtotal_lines);
+
+ /* 13. Find the actual Vertical field frequency: */
+ vfield_rate = hfreq_est / vtotal_lines;
+ /* 14. Find the Vertical frame frequency: */
+ if (interlaced)
+ vframe_rate = vfield_rate / 2;
+ else
+ vframe_rate = vfield_rate;
+ /* 15. Find number of pixels in left margin: */
+ if (margins)
+ left_margin = (hdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ else
+ left_margin = 0;
+
+ /* 16.Find number of pixels in right margin: */
+ right_margin = left_margin;
+ /* 17.Find total number of active pixels in image and left and right */
+ total_active_pixels = hdisplay_rnd + left_margin + right_margin;
+ /* 18.Find the ideal blanking duty cycle from blanking duty cycle */
+ ideal_duty_cycle = GTF_C_PRIME * 1000 -
+ (GTF_M_PRIME * 1000000 / hfreq_est);
+ /* 19.Find the number of pixels in the blanking time to the nearest
+ * double character cell: */
+ hblank = total_active_pixels * ideal_duty_cycle /
+ (100000 - ideal_duty_cycle);
+ hblank = (hblank + GTF_CELL_GRAN) / (2 * GTF_CELL_GRAN);
+ hblank = hblank * 2 * GTF_CELL_GRAN;
+ /* 20.Find total number of pixels: */
+ total_pixels = total_active_pixels + hblank;
+ /* 21.Find pixel clock frequency: */
+ pixel_freq = total_pixels * hfreq_est / 1000;
+ /* Stage 1 computations are now complete; I should really pass
+ * the results to another function and do the Stage 2 computations,
+ * but I only need a few more values so I'll just append the
+ * computations here for now */
+ /* 17. Find the number of pixels in the horizontal sync period: */
+ hsync = H_SYNC_PERCENT * total_pixels / 100;
+ hsync = (hsync + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hsync = hsync * GTF_CELL_GRAN;
+ /* 18. Find the number of pixels in horizontal front porch period */
+ hfront_porch = hblank / 2 - hsync;
+ /* 36. Find the number of lines in the odd front porch period: */
+ vodd_front_porch_lines = GTF_MIN_V_PORCH ;
+
+ /* finally, pack the results in the mode struct */
+ drm_mode->hdisplay = hdisplay_rnd;
+ drm_mode->hsync_start = hdisplay_rnd + hfront_porch;
+ drm_mode->hsync_end = drm_mode->hsync_start + hsync;
+ drm_mode->htotal = total_pixels;
+ drm_mode->vdisplay = vdisplay_rnd;
+ drm_mode->vsync_start = vdisplay_rnd + vodd_front_porch_lines;
+ drm_mode->vsync_end = drm_mode->vsync_start + V_SYNC_RQD;
+ drm_mode->vtotal = vtotal_lines;
+
+ drm_mode->clock = pixel_freq;
+
+ if (interlaced) {
+ drm_mode->vtotal *= 2;
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+ }
+
+ drm_mode_set_name(drm_mode);
+ if (GTF_M == 600 && GTF_2C == 80 && GTF_K == 128 && GTF_2J == 40)
+ drm_mode->flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC;
+ else
+ drm_mode->flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC;
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_gtf_mode_complex);
+
+/**
+ * drm_gtf_mode - create the modeline based on GTF algorithm
+ *
+ * @dev :drm device
+ * @hdisplay :hdisplay size
+ * @vdisplay :vdisplay size
+ * @vrefresh :vrefresh rate.
+ * @interlaced :whether the interlace is supported
+ * @margins :whether the margin is supported
+ *
+ * LOCKING.
+ * none.
+ *
+ * return the modeline based on GTF algorithm
+ *
+ * This function is to create the modeline based on the GTF algorithm.
+ * Generalized Timing Formula is derived from:
+ * GTF Spreadsheet by Andy Morrish (1/5/97)
+ * available at http://www.vesa.org
+ *
+ * And it is copied from the file of xserver/hw/xfree86/modes/xf86gtf.c.
+ * What I have done is to translate it by using integer calculation.
+ * I also refer to the function of fb_get_mode in the file of
+ * drivers/video/fbmon.c
+ *
+ * Standard GTF parameters:
+ * M = 600
+ * C = 40
+ * K = 128
+ * J = 20
+ */
+struct drm_display_mode *
+drm_gtf_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh,
+ bool lace, int margins)
+{
+ return drm_gtf_mode_complex(dev, hdisplay, vdisplay, vrefresh, lace,
+ margins, 600, 40 * 2, 128, 20 * 2);
+}
+EXPORT_SYMBOL(drm_gtf_mode);
+
+/**
+ * drm_mode_set_name - set the name on a mode
+ * @mode: name will be set in this mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Set the name of @mode to a standard format.
+ */
+void drm_mode_set_name(struct drm_display_mode *mode)
+{
+ bool interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
+
+ snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d%s",
+ mode->hdisplay, mode->vdisplay,
+ interlaced ? "i" : "");
+}
+EXPORT_SYMBOL(drm_mode_set_name);
+
+/**
+ * drm_mode_list_concat - move modes from one list to another
+ * @head: source list
+ * @new: dst list
+ *
+ * LOCKING:
+ * Caller must ensure both lists are locked.
+ *
+ * Move all the modes from @head to @new.
+ */
+void drm_mode_list_concat(struct list_head *head, struct list_head *new)
+{
+
+ struct list_head *entry, *tmp;
+
+ list_for_each_safe(entry, tmp, head) {
+ list_move_tail(entry, new);
+ }
+}
+EXPORT_SYMBOL(drm_mode_list_concat);
+
+/**
+ * drm_mode_width - get the width of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's width (hdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->hdisplay
+ */
+int drm_mode_width(struct drm_display_mode *mode)
+{
+ return mode->hdisplay;
+
+}
+EXPORT_SYMBOL(drm_mode_width);
+
+/**
+ * drm_mode_height - get the height of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's height (vdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->vdisplay
+ */
+int drm_mode_height(struct drm_display_mode *mode)
+{
+ return mode->vdisplay;
+}
+EXPORT_SYMBOL(drm_mode_height);
+
+/** drm_mode_hsync - get the hsync of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @modes's hsync rate in kHz, rounded to the nearest int.
+ */
+int drm_mode_hsync(struct drm_display_mode *mode)
+{
+ unsigned int calc_val;
+
+ if (mode->hsync)
+ return mode->hsync;
+
+ if (mode->htotal < 0)
+ return 0;
+
+ calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
+ calc_val += 500; /* round to 1000Hz */
+ calc_val /= 1000; /* truncate to kHz */
+
+ return calc_val;
+}
+EXPORT_SYMBOL(drm_mode_hsync);
+
+/**
+ * drm_mode_vrefresh - get the vrefresh of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's vrefresh rate in Hz or calculate it if necessary.
+ *
+ * FIXME: why is this needed? shouldn't vrefresh be set already?
+ *
+ * RETURNS:
+ * Vertical refresh rate. It will be the result of actual value plus 0.5.
+ * If it is 70.288, it will return 70Hz.
+ * If it is 59.6, it will return 60Hz.
+ */
+int drm_mode_vrefresh(struct drm_display_mode *mode)
+{
+ int refresh = 0;
+ unsigned int calc_val;
+
+ if (mode->vrefresh > 0)
+ refresh = mode->vrefresh;
+ else if (mode->htotal > 0 && mode->vtotal > 0) {
+ int vtotal;
+ vtotal = mode->vtotal;
+ /* work out vrefresh the value will be x1000 */
+ calc_val = (mode->clock * 1000);
+ calc_val /= mode->htotal;
+ refresh = (calc_val + vtotal / 2) / vtotal;
+
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ refresh *= 2;
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ refresh /= 2;
+ if (mode->vscan > 1)
+ refresh /= mode->vscan;
+ }
+ return refresh;
+}
+EXPORT_SYMBOL(drm_mode_vrefresh);
+
+/**
+ * drm_mode_set_crtcinfo - set CRTC modesetting parameters
+ * @p: mode
+ * @adjust_flags: unused? (FIXME)
+ *
+ * LOCKING:
+ * None.
+ *
+ * Setup the CRTC modesetting parameters for @p, adjusting if necessary.
+ */
+void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)
+{
+ if ((p == NULL) || ((p->type & DRM_MODE_TYPE_CRTC_C) == DRM_MODE_TYPE_BUILTIN))
+ return;
+
+ p->crtc_hdisplay = p->hdisplay;
+ p->crtc_hsync_start = p->hsync_start;
+ p->crtc_hsync_end = p->hsync_end;
+ p->crtc_htotal = p->htotal;
+ p->crtc_hskew = p->hskew;
+ p->crtc_vdisplay = p->vdisplay;
+ p->crtc_vsync_start = p->vsync_start;
+ p->crtc_vsync_end = p->vsync_end;
+ p->crtc_vtotal = p->vtotal;
+
+ if (p->flags & DRM_MODE_FLAG_INTERLACE) {
+ if (adjust_flags & CRTC_INTERLACE_HALVE_V) {
+ p->crtc_vdisplay /= 2;
+ p->crtc_vsync_start /= 2;
+ p->crtc_vsync_end /= 2;
+ p->crtc_vtotal /= 2;
+ }
+
+ p->crtc_vtotal |= 1;
+ }
+
+ if (p->flags & DRM_MODE_FLAG_DBLSCAN) {
+ p->crtc_vdisplay *= 2;
+ p->crtc_vsync_start *= 2;
+ p->crtc_vsync_end *= 2;
+ p->crtc_vtotal *= 2;
+ }
+
+ if (p->vscan > 1) {
+ p->crtc_vdisplay *= p->vscan;
+ p->crtc_vsync_start *= p->vscan;
+ p->crtc_vsync_end *= p->vscan;
+ p->crtc_vtotal *= p->vscan;
+ }
+
+ p->crtc_vblank_start = min(p->crtc_vsync_start, p->crtc_vdisplay);
+ p->crtc_vblank_end = max(p->crtc_vsync_end, p->crtc_vtotal);
+ p->crtc_hblank_start = min(p->crtc_hsync_start, p->crtc_hdisplay);
+ p->crtc_hblank_end = max(p->crtc_hsync_end, p->crtc_htotal);
+
+ p->crtc_hadjusted = false;
+ p->crtc_vadjusted = false;
+}
+EXPORT_SYMBOL(drm_mode_set_crtcinfo);
+
+
+/**
+ * drm_mode_duplicate - allocate and duplicate an existing mode
+ * @m: mode to duplicate
+ *
+ * LOCKING:
+ * None.
+ *
+ * Just allocate a new mode, copy the existing mode into it, and return
+ * a pointer to it. Used to create new instances of established modes.
+ */
+struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
+ struct drm_display_mode *mode)
+{
+ struct drm_display_mode *nmode;
+ int new_id;
+
+ nmode = drm_mode_create(dev);
+ if (!nmode)
+ return NULL;
+
+ new_id = nmode->base.id;
+ *nmode = *mode;
+ nmode->base.id = new_id;
+ INIT_LIST_HEAD(&nmode->head);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_duplicate);
+
+/**
+ * drm_mode_equal - test modes for equality
+ * @mode1: first mode
+ * @mode2: second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Check to see if @mode1 and @mode2 are equivalent.
+ *
+ * RETURNS:
+ * True if the modes are equal, false otherwise.
+ */
+bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2)
+{
+ /* do clock check convert to PICOS so fb modes get matched
+ * the same */
+ if (mode1->clock && mode2->clock) {
+ if (KHZ2PICOS(mode1->clock) != KHZ2PICOS(mode2->clock))
+ return false;
+ } else if (mode1->clock != mode2->clock)
+ return false;
+
+ if (mode1->hdisplay == mode2->hdisplay &&
+ mode1->hsync_start == mode2->hsync_start &&
+ mode1->hsync_end == mode2->hsync_end &&
+ mode1->htotal == mode2->htotal &&
+ mode1->hskew == mode2->hskew &&
+ mode1->vdisplay == mode2->vdisplay &&
+ mode1->vsync_start == mode2->vsync_start &&
+ mode1->vsync_end == mode2->vsync_end &&
+ mode1->vtotal == mode2->vtotal &&
+ mode1->vscan == mode2->vscan &&
+ mode1->flags == mode2->flags)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(drm_mode_equal);
+
+/**
+ * drm_mode_validate_size - make sure modes adhere to size constraints
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @maxX: maximum width
+ * @maxY: maximum height
+ * @maxPitch: max pitch
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * The DRM device (@dev) has size and pitch limits. Here we validate the
+ * modes we probed for @dev against those limits and set their status as
+ * necessary.
+ */
+void drm_mode_validate_size(struct drm_device *dev,
+ struct list_head *mode_list,
+ int maxX, int maxY, int maxPitch)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, mode_list, head) {
+ if (maxPitch > 0 && mode->hdisplay > maxPitch)
+ mode->status = MODE_BAD_WIDTH;
+
+ if (maxX > 0 && mode->hdisplay > maxX)
+ mode->status = MODE_VIRTUAL_X;
+
+ if (maxY > 0 && mode->vdisplay > maxY)
+ mode->status = MODE_VIRTUAL_Y;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_size);
+
+/**
+ * drm_mode_validate_clocks - validate modes against clock limits
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @min: minimum clock rate array
+ * @max: maximum clock rate array
+ * @n_ranges: number of clock ranges (size of arrays)
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Some code may need to check a mode list against the clock limits of the
+ * device in question. This function walks the mode list, testing to make
+ * sure each mode falls within a given range (defined by @min and @max
+ * arrays) and sets @mode->status as needed.
+ */
+void drm_mode_validate_clocks(struct drm_device *dev,
+ struct list_head *mode_list,
+ int *min, int *max, int n_ranges)
+{
+ struct drm_display_mode *mode;
+ int i;
+
+ list_for_each_entry(mode, mode_list, head) {
+ bool good = false;
+ for (i = 0; i < n_ranges; i++) {
+ if (mode->clock >= min[i] && mode->clock <= max[i]) {
+ good = true;
+ break;
+ }
+ }
+ if (!good)
+ mode->status = MODE_CLOCK_RANGE;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_clocks);
+
+/**
+ * drm_mode_prune_invalid - remove invalid modes from mode list
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @verbose: be verbose about it
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Once mode list generation is complete, a caller can use this routine to
+ * remove invalid modes from a mode list. If any of the modes have a
+ * status other than %MODE_OK, they are removed from @mode_list and freed.
+ */
+void drm_mode_prune_invalid(struct drm_device *dev,
+ struct list_head *mode_list, bool verbose)
+{
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, mode_list, head) {
+ if (mode->status != MODE_OK) {
+ list_del(&mode->head);
+ if (verbose) {
+ drm_mode_debug_printmodeline(mode);
+ DRM_DEBUG_KMS("Not using %s mode %d\n",
+ mode->name, mode->status);
+ }
+ drm_mode_destroy(dev, mode);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_prune_invalid);
+
+/**
+ * drm_mode_compare - compare modes for favorability
+ * @priv: unused
+ * @lh_a: list_head for first mode
+ * @lh_b: list_head for second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Compare two modes, given by @lh_a and @lh_b, returning a value indicating
+ * which is better.
+ *
+ * RETURNS:
+ * Negative if @lh_a is better than @lh_b, zero if they're equivalent, or
+ * positive if @lh_b is better than @lh_a.
+ */
+static int drm_mode_compare(void *priv, struct list_head *lh_a, struct list_head *lh_b)
+{
+ struct drm_display_mode *a = list_entry(lh_a, struct drm_display_mode, head);
+ struct drm_display_mode *b = list_entry(lh_b, struct drm_display_mode, head);
+ int diff;
+
+ diff = ((b->type & DRM_MODE_TYPE_PREFERRED) != 0) -
+ ((a->type & DRM_MODE_TYPE_PREFERRED) != 0);
+ if (diff)
+ return diff;
+ diff = b->hdisplay * b->vdisplay - a->hdisplay * a->vdisplay;
+ if (diff)
+ return diff;
+ diff = b->clock - a->clock;
+ return diff;
+}
+
+/**
+ * drm_mode_sort - sort mode list
+ * @mode_list: list to sort
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Sort @mode_list by favorability, putting good modes first.
+ */
+void drm_mode_sort(struct list_head *mode_list)
+{
+ list_sort(NULL, mode_list, drm_mode_compare);
+}
+EXPORT_SYMBOL(drm_mode_sort);
+
+/**
+ * drm_mode_connector_list_update - update the mode list for the connector
+ * @connector: the connector to update
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * This moves the modes from the @connector probed_modes list
+ * to the actual mode list. It compares the probed mode against the current
+ * list and only adds different modes. All modes unverified after this point
+ * will be removed by the prune invalid modes.
+ */
+void drm_mode_connector_list_update(struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+ struct drm_display_mode *pmode, *pt;
+ int found_it;
+
+ list_for_each_entry_safe(pmode, pt, &connector->probed_modes,
+ head) {
+ found_it = 0;
+ /* go through current modes checking for the new probed mode */
+ list_for_each_entry(mode, &connector->modes, head) {
+ if (drm_mode_equal(pmode, mode)) {
+ found_it = 1;
+ /* if equal delete the probed mode */
+ mode->status = pmode->status;
+ /* Merge type bits together */
+ mode->type |= pmode->type;
+ list_del(&pmode->head);
+ drm_mode_destroy(connector->dev, pmode);
+ break;
+ }
+ }
+
+ if (!found_it) {
+ list_move_tail(&pmode->head, &connector->modes);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_list_update);
--- /dev/null
+/* drm_pci.h -- PCI DMA memory management wrappers for DRM -*- linux-c -*- */
+/**
+ * \file drm_pci.c
+ * \brief Functions and ioctls to manage PCI memory
+ *
+ * \warning These interfaces aren't stable yet.
+ *
+ * \todo Implement the remaining ioctl's for the PCI pools.
+ * \todo The wrappers here are so thin that they would be better off inlined..
+ *
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ * \author Leif Delgass <ldelgass@retinalburn.net>
+ */
+
+/*
+ * Copyright 2003 José Fonseca.
+ * Copyright 2003 Leif Delgass.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include "drmP.h"
+
+/**********************************************************************/
+/** \name PCI memory */
+/*@{*/
+
+/**
+ * \brief Allocate a PCI consistent memory block, for DMA.
+ */
+drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align)
+{
+ drm_dma_handle_t *dmah;
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ /* pci_alloc_consistent only guarantees alignment to the smallest
+ * PAGE_SIZE order which is greater than or equal to the requested size.
+ * Return NULL here for now to make sure nobody tries for larger alignment
+ */
+ if (align > size)
+ return NULL;
+
+ dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
+ if (!dmah)
+ return NULL;
+
+ dmah->size = size;
+ dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP);
+
+ if (dmah->vaddr == NULL) {
+ kfree(dmah);
+ return NULL;
+ }
+
+ memset(dmah->vaddr, 0, size);
+
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Reserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ SetPageReserved(virt_to_page(addr));
+ }
+
+ return dmah;
+}
+
+EXPORT_SYMBOL(drm_pci_alloc);
+
+/**
+ * \brief Free a PCI consistent memory block without freeing its descriptor.
+ *
+ * This function is for internal use in the Linux-specific DRM core code.
+ */
+void __drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ if (dmah->vaddr) {
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Unreserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = dmah->size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ }
+ dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr,
+ dmah->busaddr);
+ }
+}
+
+/**
+ * \brief Free a PCI consistent memory block
+ */
+void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+ __drm_pci_free(dev, dmah);
+ kfree(dmah);
+}
+
+EXPORT_SYMBOL(drm_pci_free);
+
+#ifdef CONFIG_PCI
+/**
+ * Register.
+ *
+ * \param pdev - PCI device structure
+ * \param ent entry from the PCI ID table with device type flags
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to gets inter module "drm" information. If we are first
+ * then register the character device and inter module information.
+ * Try and register, if we fail to register, backout previous work.
+ */
+int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ struct drm_device *dev;
+ int ret;
+
+ DRM_DEBUG("\n");
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_g1;
+
+ pci_set_master(pdev);
+
+ dev->pdev = pdev;
+ dev->dev = &pdev->dev;
+
+ dev->pci_device = pdev->device;
+ dev->pci_vendor = pdev->vendor;
+
+#ifdef __alpha__
+ dev->hose = pdev->sysdata;
+#endif
+
+ mutex_lock(&drm_global_mutex);
+
+ if ((ret = drm_fill_in_dev(dev, ent, driver))) {
+ printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
+ goto err_g2;
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ pci_set_drvdata(pdev, dev);
+ ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
+ if (ret)
+ goto err_g2;
+ }
+
+ if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
+ goto err_g3;
+
+ if (dev->driver->load) {
+ ret = dev->driver->load(dev, ent->driver_data);
+ if (ret)
+ goto err_g4;
+ }
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_mode_group_init_legacy_group(dev,
+ &dev->primary->mode_group);
+ if (ret)
+ goto err_g4;
+ }
+
+ list_add_tail(&dev->driver_item, &driver->device_list);
+
+ DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
+ driver->name, driver->major, driver->minor, driver->patchlevel,
+ driver->date, pci_name(pdev), dev->primary->index);
+
+ mutex_unlock(&drm_global_mutex);
+ return 0;
+
+err_g4:
+ drm_put_minor(&dev->primary);
+err_g3:
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+err_g2:
+ pci_disable_device(pdev);
+err_g1:
+ kfree(dev);
+ mutex_unlock(&drm_global_mutex);
+ return ret;
+}
+EXPORT_SYMBOL(drm_get_pci_dev);
+
+/**
+ * PCI device initialization. Called via drm_init at module load time,
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes a drm_device structures,registering the
+ * stubs and initializing the AGP device.
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+int drm_pci_init(struct drm_driver *driver)
+{
+ struct pci_dev *pdev = NULL;
+ const struct pci_device_id *pid;
+ int i;
+
+ if (driver->driver_features & DRIVER_MODESET)
+ return pci_register_driver(&driver->pci_driver);
+
+ /* If not using KMS, fall back to stealth mode manual scanning. */
+ for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
+ pid = &driver->pci_driver.id_table[i];
+
+ /* Loop around setting up a DRM device for each PCI device
+ * matching our ID and device class. If we had the internal
+ * function that pci_get_subsys and pci_get_class used, we'd
+ * be able to just pass pid in instead of doing a two-stage
+ * thing.
+ */
+ pdev = NULL;
+ while ((pdev =
+ pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
+ pid->subdevice, pdev)) != NULL) {
+ if ((pdev->class & pid->class_mask) != pid->class)
+ continue;
+
+ /* stealth mode requires a manual probe */
+ pci_dev_get(pdev);
+ drm_get_pci_dev(pdev, pid, driver);
+ }
+ }
+ return 0;
+}
+
+#else
+
+int drm_pci_init(struct drm_driver *driver)
+{
+ return -1;
+}
+
+#endif
+/*@}*/
--- /dev/null
+/*
+ * Derived from drm_pci.c
+ *
+ * Copyright 2003 José Fonseca.
+ * Copyright 2003 Leif Delgass.
+ * Copyright (c) 2009, Code Aurora Forum.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Register.
+ *
+ * \param platdev - Platform device struture
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to gets inter module "drm" information. If we are first
+ * then register the character device and inter module information.
+ * Try and register, if we fail to register, backout previous work.
+ */
+
+int drm_get_platform_dev(struct platform_device *platdev,
+ struct drm_driver *driver)
+{
+ struct drm_device *dev;
+ int ret;
+
+ DRM_DEBUG("\n");
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->platformdev = platdev;
+ dev->dev = &platdev->dev;
+
+ mutex_lock(&drm_global_mutex);
+
+ ret = drm_fill_in_dev(dev, NULL, driver);
+
+ if (ret) {
+ printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
+ goto err_g1;
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev_set_drvdata(&platdev->dev, dev);
+ ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
+ if (ret)
+ goto err_g1;
+ }
+
+ ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY);
+ if (ret)
+ goto err_g2;
+
+ if (dev->driver->load) {
+ ret = dev->driver->load(dev, 0);
+ if (ret)
+ goto err_g3;
+ }
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_mode_group_init_legacy_group(dev,
+ &dev->primary->mode_group);
+ if (ret)
+ goto err_g3;
+ }
+
+ list_add_tail(&dev->driver_item, &driver->device_list);
+
+ mutex_unlock(&drm_global_mutex);
+
+ DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
+ driver->name, driver->major, driver->minor, driver->patchlevel,
+ driver->date, dev->primary->index);
+
+ return 0;
+
+err_g3:
+ drm_put_minor(&dev->primary);
+err_g2:
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+err_g1:
+ kfree(dev);
+ mutex_unlock(&drm_global_mutex);
+ return ret;
+}
+EXPORT_SYMBOL(drm_get_platform_dev);
+
+/**
+ * Platform device initialization. Called via drm_init at module load time,
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes a drm_device structures,registering the
+ * stubs
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+
+int drm_platform_init(struct drm_driver *driver)
+{
+ return drm_get_platform_dev(driver->platform_device, driver);
+}
--- /dev/null
+/**
+ * \file drm_proc.c
+ * /proc support for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * \par Acknowledgements:
+ * Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
+ * the problem with the proc files not outputting all their information.
+ */
+
+/*
+ * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include "drmP.h"
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+/**
+ * Proc file list.
+ */
+static struct drm_info_list drm_proc_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
+
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node* node = PDE(inode)->data;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+static const struct file_operations drm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of proc files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI proc dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
+ */
+int drm_proc_create_files(struct drm_info_list *files, int count,
+ struct proc_dir_entry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct proc_dir_entry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ tmp->minor = minor;
+ tmp->info_ent = &files[i];
+ list_add(&tmp->list, &minor->proc_nodes.list);
+
+ ent = proc_create_data(files[i].name, S_IRUGO, root,
+ &drm_proc_fops, tmp);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, files[i].name);
+ list_del(&tmp->list);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ }
+ return 0;
+
+fail:
+ for (i = 0; i < count; i++)
+ remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
+ return ret;
+}
+
+/**
+ * Initialize the DRI proc filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI proc dir entry.
+ * \param dev_root resulting DRI device proc dir entry.
+ * \return root entry pointer on success, or NULL on failure.
+ *
+ * Create the DRI proc root entry "/proc/dri", the device proc root entry
+ * "/proc/dri/%minor%/", and each entry in proc_list as
+ * "/proc/dri/%minor%/%name%".
+ */
+int drm_proc_init(struct drm_minor *minor, int minor_id,
+ struct proc_dir_entry *root)
+{
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->proc_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->proc_root = proc_mkdir(name, root);
+ if (!minor->proc_root) {
+ DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+ minor->proc_root, minor);
+ if (ret) {
+ remove_proc_entry(name, root);
+ minor->proc_root = NULL;
+ DRM_ERROR("Failed to create core drm proc files\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int drm_proc_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ remove_proc_entry(files[i].name,
+ minor->proc_root);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * Cleanup the proc filesystem resources.
+ *
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
+ *
+ * Remove all proc entries created by proc_init().
+ */
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
+{
+ char name[64];
+
+ if (!root || !minor->proc_root)
+ return 0;
+
+ drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
+
+ sprintf(name, "%d", minor->index);
+ remove_proc_entry(name, root);
+
+ return 0;
+}
+
--- /dev/null
+/**
+ * \file drm_scatter.c
+ * IOCTLs to manage scatter/gather memory
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include "drmP.h"
+
+#define DEBUG_SCATTER 0
+
+static inline void *drm_vmalloc_dma(unsigned long size)
+{
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL | _PAGE_NO_CACHE);
+#else
+ return vmalloc_32(size);
+#endif
+}
+
+void drm_sg_cleanup(struct drm_sg_mem * entry)
+{
+ struct page *page;
+ int i;
+
+ for (i = 0; i < entry->pages; i++) {
+ page = entry->pagelist[i];
+ if (page)
+ ClearPageReserved(page);
+ }
+
+ vfree(entry->virtual);
+
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+}
+
+#ifdef _LP64
+# define ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1)))
+#else
+# define ScatterHandle(x) (unsigned int)(x)
+#endif
+
+int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request)
+{
+ struct drm_sg_mem *entry;
+ unsigned long pages, i, j;
+
+ DRM_DEBUG("\n");
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (dev->sg)
+ return -EINVAL;
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages);
+
+ entry->pages = pages;
+ entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);
+ if (!entry->pagelist) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist));
+
+ entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);
+ if (!entry->busaddr) {
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+ memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr));
+
+ entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT);
+ if (!entry->virtual) {
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ /* This also forces the mapping of COW pages, so our page list
+ * will be valid. Please don't remove it...
+ */
+ memset(entry->virtual, 0, pages << PAGE_SHIFT);
+
+ entry->handle = ScatterHandle((unsigned long)entry->virtual);
+
+ DRM_DEBUG("handle = %08lx\n", entry->handle);
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ for (i = (unsigned long)entry->virtual, j = 0; j < pages;
+ i += PAGE_SIZE, j++) {
+ entry->pagelist[j] = vmalloc_to_page((void *)i);
+ if (!entry->pagelist[j])
+ goto failed;
+ SetPageReserved(entry->pagelist[j]);
+ }
+
+ request->handle = entry->handle;
+
+ dev->sg = entry;
+
+#if DEBUG_SCATTER
+ /* Verify that each page points to its virtual address, and vice
+ * versa.
+ */
+ {
+ int error = 0;
+
+ for (i = 0; i < pages; i++) {
+ unsigned long *tmp;
+
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0xcafebabe;
+ }
+ tmp = (unsigned long *)((u8 *) entry->virtual +
+ (PAGE_SIZE * i));
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ if (*tmp != 0xcafebabe && error == 0) {
+ error = 1;
+ DRM_ERROR("Scatter allocation error, "
+ "pagelist does not match "
+ "virtual mapping\n");
+ }
+ }
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0;
+ }
+ }
+ if (error == 0)
+ DRM_ERROR("Scatter allocation matches pagelist\n");
+ }
+#endif
+
+ return 0;
+
+ failed:
+ drm_sg_cleanup(entry);
+ return -ENOMEM;
+}
+
+int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+
+ return drm_sg_alloc(dev, request);
+
+}
+
+int drm_sg_free(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+ struct drm_sg_mem *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ entry = dev->sg;
+ dev->sg = NULL;
+
+ if (!entry || entry->handle != request->handle)
+ return -EINVAL;
+
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ drm_sg_cleanup(entry);
+
+ return 0;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple memory manager interface that keeps track on allocate regions on a
+ * per "owner" basis. All regions associated with an "owner" can be released
+ * with a simple call. Typically if the "owner" exists. The owner is any
+ * "unsigned long" identifier. Can typically be a pointer to a file private
+ * struct or a context identifier.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drm_sman.h"
+
+struct drm_owner_item {
+ struct drm_hash_item owner_hash;
+ struct list_head sman_list;
+ struct list_head mem_blocks;
+};
+
+void drm_sman_takedown(struct drm_sman * sman)
+{
+ drm_ht_remove(&sman->user_hash_tab);
+ drm_ht_remove(&sman->owner_hash_tab);
+ kfree(sman->mm);
+}
+
+EXPORT_SYMBOL(drm_sman_takedown);
+
+int
+drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
+ unsigned int user_order, unsigned int owner_order)
+{
+ int ret = 0;
+
+ sman->mm = (struct drm_sman_mm *) kcalloc(num_managers,
+ sizeof(*sman->mm),
+ GFP_KERNEL);
+ if (!sman->mm) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ sman->num_managers = num_managers;
+ INIT_LIST_HEAD(&sman->owner_items);
+ ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
+ if (ret)
+ goto out1;
+ ret = drm_ht_create(&sman->user_hash_tab, user_order);
+ if (!ret)
+ goto out;
+
+ drm_ht_remove(&sman->owner_hash_tab);
+out1:
+ kfree(sman->mm);
+out:
+ return ret;
+}
+
+EXPORT_SYMBOL(drm_sman_init);
+
+static void *drm_sman_mm_allocate(void *private, unsigned long size,
+ unsigned alignment)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ struct drm_mm_node *tmp;
+
+ tmp = drm_mm_search_free(mm, size, alignment, 1);
+ if (!tmp) {
+ return NULL;
+ }
+ tmp = drm_mm_get_block(tmp, size, alignment);
+ return tmp;
+}
+
+static void drm_sman_mm_free(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+
+ drm_mm_put_block(node);
+}
+
+static void drm_sman_mm_destroy(void *private)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ drm_mm_takedown(mm);
+ kfree(mm);
+}
+
+static unsigned long drm_sman_mm_offset(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+ return node->start;
+}
+
+int
+drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
+ unsigned long start, unsigned long size)
+{
+ struct drm_sman_mm *sman_mm;
+ struct drm_mm *mm;
+ int ret;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ mm = kzalloc(sizeof(*mm), GFP_KERNEL);
+ if (!mm) {
+ return -ENOMEM;
+ }
+ sman_mm->private = mm;
+ ret = drm_mm_init(mm, start, size);
+
+ if (ret) {
+ kfree(mm);
+ return ret;
+ }
+
+ sman_mm->allocate = drm_sman_mm_allocate;
+ sman_mm->free = drm_sman_mm_free;
+ sman_mm->destroy = drm_sman_mm_destroy;
+ sman_mm->offset = drm_sman_mm_offset;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_set_range);
+
+int
+drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
+ struct drm_sman_mm * allocator)
+{
+ BUG_ON(manager >= sman->num_managers);
+ sman->mm[manager] = *allocator;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_sman_set_manager);
+
+static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
+ unsigned long owner)
+{
+ int ret;
+ struct drm_hash_item *owner_hash_item;
+ struct drm_owner_item *owner_item;
+
+ ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
+ if (!ret) {
+ return drm_hash_entry(owner_hash_item, struct drm_owner_item,
+ owner_hash);
+ }
+
+ owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
+ if (!owner_item)
+ goto out;
+
+ INIT_LIST_HEAD(&owner_item->mem_blocks);
+ owner_item->owner_hash.key = owner;
+ if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
+ goto out1;
+
+ list_add_tail(&owner_item->sman_list, &sman->owner_items);
+ return owner_item;
+
+out1:
+ kfree(owner_item);
+out:
+ return NULL;
+}
+
+struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
+ unsigned long size, unsigned alignment,
+ unsigned long owner)
+{
+ void *tmp;
+ struct drm_sman_mm *sman_mm;
+ struct drm_owner_item *owner_item;
+ struct drm_memblock_item *memblock;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ tmp = sman_mm->allocate(sman_mm->private, size, alignment);
+
+ if (!tmp) {
+ return NULL;
+ }
+
+ memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
+
+ if (!memblock)
+ goto out;
+
+ memblock->mm_info = tmp;
+ memblock->mm = sman_mm;
+ memblock->sman = sman;
+
+ if (drm_ht_just_insert_please
+ (&sman->user_hash_tab, &memblock->user_hash,
+ (unsigned long)memblock, 32, 0, 0))
+ goto out1;
+
+ owner_item = drm_sman_get_owner_item(sman, owner);
+ if (!owner_item)
+ goto out2;
+
+ list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
+
+ return memblock;
+
+out2:
+ drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
+out1:
+ kfree(memblock);
+out:
+ sman_mm->free(sman_mm->private, tmp);
+
+ return NULL;
+}
+
+EXPORT_SYMBOL(drm_sman_alloc);
+
+static void drm_sman_free(struct drm_memblock_item *item)
+{
+ struct drm_sman *sman = item->sman;
+
+ list_del(&item->owner_list);
+ drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
+ item->mm->free(item->mm->private, item->mm_info);
+ kfree(item);
+}
+
+int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
+{
+ struct drm_hash_item *hash_item;
+ struct drm_memblock_item *memblock_item;
+
+ if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
+ return -EINVAL;
+
+ memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
+ user_hash);
+ drm_sman_free(memblock_item);
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_free_key);
+
+static void drm_sman_remove_owner(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ list_del(&owner_item->sman_list);
+ drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
+ kfree(owner_item);
+}
+
+int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+ return -1;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
+ drm_sman_remove_owner(sman, owner_item);
+ return -1;
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_owner_clean);
+
+static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ struct drm_memblock_item *entry, *next;
+
+ list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
+ owner_list) {
+ drm_sman_free(entry);
+ }
+ drm_sman_remove_owner(sman, owner_item);
+}
+
+void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+
+ return;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ drm_sman_do_owner_cleanup(sman, owner_item);
+}
+
+EXPORT_SYMBOL(drm_sman_owner_cleanup);
+
+void drm_sman_cleanup(struct drm_sman *sman)
+{
+ struct drm_owner_item *entry, *next;
+ unsigned int i;
+ struct drm_sman_mm *sman_mm;
+
+ list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
+ drm_sman_do_owner_cleanup(sman, entry);
+ }
+ if (sman->mm) {
+ for (i = 0; i < sman->num_managers; ++i) {
+ sman_mm = &sman->mm[i];
+ if (sman_mm->private) {
+ sman_mm->destroy(sman_mm->private);
+ sman_mm->private = NULL;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_sman_cleanup);
--- /dev/null
+/**
+ * \file drm_stub.h
+ * Stub support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
+ *
+ * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+unsigned int drm_debug = 0; /* 1 to enable debug output */
+EXPORT_SYMBOL(drm_debug);
+
+MODULE_AUTHOR(CORE_AUTHOR);
+MODULE_DESCRIPTION(CORE_DESC);
+MODULE_LICENSE("GPL and additional rights");
+MODULE_PARM_DESC(debug, "Enable debug output");
+
+module_param_named(debug, drm_debug, int, 0600);
+
+struct idr drm_minors_idr;
+
+struct class *drm_class;
+struct proc_dir_entry *drm_proc_root;
+struct dentry *drm_debugfs_root;
+void drm_ut_debug_printk(unsigned int request_level,
+ const char *prefix,
+ const char *function_name,
+ const char *format, ...)
+{
+ va_list args;
+
+ if (drm_debug & request_level) {
+ if (function_name)
+ printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
+ va_start(args, format);
+ vprintk(format, args);
+ va_end(args);
+ }
+}
+EXPORT_SYMBOL(drm_ut_debug_printk);
+static int drm_minor_get_id(struct drm_device *dev, int type)
+{
+ int new_id;
+ int ret;
+ int base = 0, limit = 63;
+
+ if (type == DRM_MINOR_CONTROL) {
+ base += 64;
+ limit = base + 127;
+ } else if (type == DRM_MINOR_RENDER) {
+ base += 128;
+ limit = base + 255;
+ }
+
+again:
+ if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&drm_minors_idr, NULL,
+ base, &new_id);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret == -EAGAIN) {
+ goto again;
+ } else if (ret) {
+ return ret;
+ }
+
+ if (new_id >= limit) {
+ idr_remove(&drm_minors_idr, new_id);
+ return -EINVAL;
+ }
+ return new_id;
+}
+
+struct drm_master *drm_master_create(struct drm_minor *minor)
+{
+ struct drm_master *master;
+
+ master = kzalloc(sizeof(*master), GFP_KERNEL);
+ if (!master)
+ return NULL;
+
+ kref_init(&master->refcount);
+ spin_lock_init(&master->lock.spinlock);
+ init_waitqueue_head(&master->lock.lock_queue);
+ drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ INIT_LIST_HEAD(&master->magicfree);
+ master->minor = minor;
+
+ list_add_tail(&master->head, &minor->master_list);
+
+ return master;
+}
+
+struct drm_master *drm_master_get(struct drm_master *master)
+{
+ kref_get(&master->refcount);
+ return master;
+}
+EXPORT_SYMBOL(drm_master_get);
+
+static void drm_master_destroy(struct kref *kref)
+{
+ struct drm_master *master = container_of(kref, struct drm_master, refcount);
+ struct drm_magic_entry *pt, *next;
+ struct drm_device *dev = master->minor->dev;
+ struct drm_map_list *r_list, *list_temp;
+
+ list_del(&master->head);
+
+ if (dev->driver->master_destroy)
+ dev->driver->master_destroy(dev, master);
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
+ if (r_list->master == master) {
+ drm_rmmap_locked(dev, r_list->map);
+ r_list = NULL;
+ }
+ }
+
+ if (master->unique) {
+ kfree(master->unique);
+ master->unique = NULL;
+ master->unique_len = 0;
+ }
+
+ kfree(dev->devname);
+ dev->devname = NULL;
+
+ list_for_each_entry_safe(pt, next, &master->magicfree, head) {
+ list_del(&pt->head);
+ drm_ht_remove_item(&master->magiclist, &pt->hash_item);
+ kfree(pt);
+ }
+
+ drm_ht_remove(&master->magiclist);
+
+ kfree(master);
+}
+
+void drm_master_put(struct drm_master **master)
+{
+ kref_put(&(*master)->refcount, drm_master_destroy);
+ *master = NULL;
+}
+EXPORT_SYMBOL(drm_master_put);
+
+int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ int ret = 0;
+
+ if (file_priv->is_master)
+ return 0;
+
+ if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master &&
+ file_priv->minor->master != file_priv->master) {
+ mutex_lock(&dev->struct_mutex);
+ file_priv->minor->master = drm_master_get(file_priv->master);
+ file_priv->is_master = 1;
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, file_priv, false);
+ if (unlikely(ret != 0)) {
+ file_priv->is_master = 0;
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return 0;
+}
+
+int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (!file_priv->is_master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, false);
+ drm_master_put(&file_priv->minor->master);
+ file_priv->is_master = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+int drm_fill_in_dev(struct drm_device *dev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ int retcode;
+
+ INIT_LIST_HEAD(&dev->filelist);
+ INIT_LIST_HEAD(&dev->ctxlist);
+ INIT_LIST_HEAD(&dev->vmalist);
+ INIT_LIST_HEAD(&dev->maplist);
+ INIT_LIST_HEAD(&dev->vblank_event_list);
+
+ spin_lock_init(&dev->count_lock);
+ spin_lock_init(&dev->event_lock);
+ mutex_init(&dev->struct_mutex);
+ mutex_init(&dev->ctxlist_mutex);
+
+ if (drm_ht_create(&dev->map_hash, 12)) {
+ return -ENOMEM;
+ }
+
+ /* the DRM has 6 basic counters */
+ dev->counters = 6;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+
+ dev->driver = driver;
+
+ if (drm_core_has_AGP(dev)) {
+ if (drm_device_is_agp(dev))
+ dev->agp = drm_agp_init(dev);
+ if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP)
+ && (dev->agp == NULL)) {
+ DRM_ERROR("Cannot initialize the agpgart module.\n");
+ retcode = -EINVAL;
+ goto error_out_unreg;
+ }
+ if (drm_core_has_MTRR(dev)) {
+ if (dev->agp)
+ dev->agp->agp_mtrr =
+ mtrr_add(dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size *
+ 1024 * 1024, MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+
+
+ retcode = drm_ctxbitmap_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot allocate memory for context bitmap.\n");
+ goto error_out_unreg;
+ }
+
+ if (driver->driver_features & DRIVER_GEM) {
+ retcode = drm_gem_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot initialize graphics execution "
+ "manager (GEM)\n");
+ goto error_out_unreg;
+ }
+ }
+
+ return 0;
+
+ error_out_unreg:
+ drm_lastclose(dev);
+ return retcode;
+}
+
+
+/**
+ * Get a secondary minor number.
+ *
+ * \param dev device data structure
+ * \param sec-minor structure to hold the assigned minor
+ * \return negative number on failure.
+ *
+ * Search an empty entry and initialize it to the given parameters, and
+ * create the proc init entry via proc_init(). This routines assigns
+ * minor numbers to secondary heads of multi-headed cards
+ */
+int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
+{
+ struct drm_minor *new_minor;
+ int ret;
+ int minor_id;
+
+ DRM_DEBUG("\n");
+
+ minor_id = drm_minor_get_id(dev, type);
+ if (minor_id < 0)
+ return minor_id;
+
+ new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
+ if (!new_minor) {
+ ret = -ENOMEM;
+ goto err_idr;
+ }
+
+ new_minor->type = type;
+ new_minor->device = MKDEV(DRM_MAJOR, minor_id);
+ new_minor->dev = dev;
+ new_minor->index = minor_id;
+ INIT_LIST_HEAD(&new_minor->master_list);
+
+ idr_replace(&drm_minors_idr, new_minor, minor_id);
+
+ if (type == DRM_MINOR_LEGACY) {
+ ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
+ goto err_mem;
+ }
+ } else
+ new_minor->proc_root = NULL;
+
+#if defined(CONFIG_DEBUG_FS)
+ ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
+ goto err_g2;
+ }
+#endif
+
+ ret = drm_sysfs_device_add(new_minor);
+ if (ret) {
+ printk(KERN_ERR
+ "DRM: Error sysfs_device_add.\n");
+ goto err_g2;
+ }
+ *minor = new_minor;
+
+ DRM_DEBUG("new minor assigned %d\n", minor_id);
+ return 0;
+
+
+err_g2:
+ if (new_minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(new_minor, drm_proc_root);
+err_mem:
+ kfree(new_minor);
+err_idr:
+ idr_remove(&drm_minors_idr, minor_id);
+ *minor = NULL;
+ return ret;
+}
+
+/**
+ * Put a secondary minor number.
+ *
+ * \param sec_minor - structure to be released
+ * \return always zero
+ *
+ * Cleans up the proc resources. Not legal for this to be the
+ * last minor released.
+ *
+ */
+int drm_put_minor(struct drm_minor **minor_p)
+{
+ struct drm_minor *minor = *minor_p;
+
+ DRM_DEBUG("release secondary minor %d\n", minor->index);
+
+ if (minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(minor, drm_proc_root);
+#if defined(CONFIG_DEBUG_FS)
+ drm_debugfs_cleanup(minor);
+#endif
+
+ drm_sysfs_device_remove(minor);
+
+ idr_remove(&drm_minors_idr, minor->index);
+
+ kfree(minor);
+ *minor_p = NULL;
+ return 0;
+}
+
+/**
+ * Called via drm_exit() at module unload time or when pci device is
+ * unplugged.
+ *
+ * Cleans up all DRM device, calling drm_lastclose().
+ *
+ * \sa drm_init
+ */
+void drm_put_dev(struct drm_device *dev)
+{
+ struct drm_driver *driver;
+ struct drm_map_list *r_list, *list_temp;
+
+ DRM_DEBUG("\n");
+
+ if (!dev) {
+ DRM_ERROR("cleanup called no dev\n");
+ return;
+ }
+ driver = dev->driver;
+
+ drm_lastclose(dev);
+
+ if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->agp_mtrr >= 0) {
+ int retval;
+ retval = mtrr_del(dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size * 1024 * 1024);
+ DRM_DEBUG("mtrr_del=%d\n", retval);
+ }
+
+ if (dev->driver->unload)
+ dev->driver->unload(dev);
+
+ if (drm_core_has_AGP(dev) && dev->agp) {
+ kfree(dev->agp);
+ dev->agp = NULL;
+ }
+
+ drm_vblank_cleanup(dev);
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+ drm_rmmap(dev, r_list->map);
+ drm_ht_remove(&dev->map_hash);
+
+ drm_ctxbitmap_cleanup(dev);
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+
+ if (driver->driver_features & DRIVER_GEM)
+ drm_gem_destroy(dev);
+
+ drm_put_minor(&dev->primary);
+
+ if (dev->devname) {
+ kfree(dev->devname);
+ dev->devname = NULL;
+ }
+ kfree(dev);
+}
+EXPORT_SYMBOL(drm_put_dev);
--- /dev/null
+
+/*
+ * drm_sysfs.c - Modifications to drm_sysfs_class.c to support
+ * extra sysfs attribute from DRM. Normal drm_sysfs_class
+ * does not allow adding attributes.
+ *
+ * Copyright (c) 2004 Jon Smirl <jonsmirl@gmail.com>
+ * Copyright (c) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2003-2004 IBM Corp.
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+#include <linux/gfp.h>
+#include <linux/err.h>
+
+#include "drm_sysfs.h"
+#include "drm_core.h"
+#include "drmP.h"
+
+#define to_drm_minor(d) container_of(d, struct drm_minor, kdev)
+#define to_drm_connector(d) container_of(d, struct drm_connector, kdev)
+
+static struct device_type drm_sysfs_device_minor = {
+ .name = "drm_minor"
+};
+
+/**
+ * drm_class_suspend - DRM class suspend hook
+ * @dev: Linux device to suspend
+ * @state: power state to enter
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its suspend hook, if present.
+ */
+static int drm_class_suspend(struct device *dev, pm_message_t state)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->suspend)
+ return drm_dev->driver->suspend(drm_dev, state);
+ }
+ return 0;
+}
+
+/**
+ * drm_class_resume - DRM class resume hook
+ * @dev: Linux device to resume
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its resume hook, if present.
+ */
+static int drm_class_resume(struct device *dev)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->resume)
+ return drm_dev->driver->resume(drm_dev);
+ }
+ return 0;
+}
+
+static char *drm_devnode(struct device *dev, mode_t *mode)
+{
+ return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
+}
+
+static CLASS_ATTR_STRING(version, S_IRUGO,
+ CORE_NAME " "
+ __stringify(CORE_MAJOR) "."
+ __stringify(CORE_MINOR) "."
+ __stringify(CORE_PATCHLEVEL) " "
+ CORE_DATE);
+
+/**
+ * drm_sysfs_create - create a struct drm_sysfs_class structure
+ * @owner: pointer to the module that is to "own" this struct drm_sysfs_class
+ * @name: pointer to a string for the name of this class.
+ *
+ * This is used to create DRM class pointer that can then be used
+ * in calls to drm_sysfs_device_add().
+ *
+ * Note, the pointer created here is to be destroyed when finished by making a
+ * call to drm_sysfs_destroy().
+ */
+struct class *drm_sysfs_create(struct module *owner, char *name)
+{
+ struct class *class;
+ int err;
+
+ class = class_create(owner, name);
+ if (IS_ERR(class)) {
+ err = PTR_ERR(class);
+ goto err_out;
+ }
+
+ class->suspend = drm_class_suspend;
+ class->resume = drm_class_resume;
+
+ err = class_create_file(class, &class_attr_version.attr);
+ if (err)
+ goto err_out_class;
+
+ class->devnode = drm_devnode;
+
+ return class;
+
+err_out_class:
+ class_destroy(class);
+err_out:
+ return ERR_PTR(err);
+}
+
+/**
+ * drm_sysfs_destroy - destroys DRM class
+ *
+ * Destroy the DRM device class.
+ */
+void drm_sysfs_destroy(void)
+{
+ if ((drm_class == NULL) || (IS_ERR(drm_class)))
+ return;
+ class_remove_file(drm_class, &class_attr_version.attr);
+ class_destroy(drm_class);
+}
+
+/**
+ * drm_sysfs_device_release - do nothing
+ * @dev: Linux device
+ *
+ * Normally, this would free the DRM device associated with @dev, along
+ * with cleaning up any other stuff. But we do that in the DRM core, so
+ * this function can just return and hope that the core does its job.
+ */
+static void drm_sysfs_device_release(struct device *dev)
+{
+ memset(dev, 0, sizeof(struct device));
+ return;
+}
+
+/*
+ * Connector properties
+ */
+static ssize_t status_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ enum drm_connector_status status;
+
+ status = connector->funcs->detect(connector, true);
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_connector_status_name(status));
+}
+
+static ssize_t dpms_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ uint64_t dpms_status;
+ int ret;
+
+ ret = drm_connector_property_get_value(connector,
+ dev->mode_config.dpms_property,
+ &dpms_status);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_dpms_name((int)dpms_status));
+}
+
+static ssize_t enabled_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", connector->encoder ? "enabled" :
+ "disabled");
+}
+
+static ssize_t edid_show(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t off,
+ size_t count)
+{
+ struct device *connector_dev = container_of(kobj, struct device, kobj);
+ struct drm_connector *connector = to_drm_connector(connector_dev);
+ unsigned char *edid;
+ size_t size;
+
+ if (!connector->edid_blob_ptr)
+ return 0;
+
+ edid = connector->edid_blob_ptr->data;
+ size = connector->edid_blob_ptr->length;
+ if (!edid)
+ return 0;
+
+ if (off >= size)
+ return 0;
+
+ if (off + count > size)
+ count = size - off;
+ memcpy(buf, edid + off, count);
+
+ return count;
+}
+
+static ssize_t modes_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_display_mode *mode;
+ int written = 0;
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ written += snprintf(buf + written, PAGE_SIZE - written, "%s\n",
+ mode->name);
+ }
+
+ return written;
+}
+
+static ssize_t subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_subconnector_name((int)subconnector) :
+ drm_get_dvi_i_subconnector_name((int)subconnector));
+}
+
+static ssize_t select_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_select_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_select_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find select subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_select_name((int)subconnector) :
+ drm_get_dvi_i_select_name((int)subconnector));
+}
+
+static struct device_attribute connector_attrs[] = {
+ __ATTR_RO(status),
+ __ATTR_RO(enabled),
+ __ATTR_RO(dpms),
+ __ATTR_RO(modes),
+};
+
+/* These attributes are for both DVI-I connectors and all types of tv-out. */
+static struct device_attribute connector_attrs_opt1[] = {
+ __ATTR_RO(subconnector),
+ __ATTR_RO(select_subconnector),
+};
+
+static struct bin_attribute edid_attr = {
+ .attr.name = "edid",
+ .attr.mode = 0444,
+ .size = 0,
+ .read = edid_show,
+};
+
+/**
+ * drm_sysfs_connector_add - add an connector to sysfs
+ * @connector: connector to add
+ *
+ * Create an connector device in sysfs, along with its associated connector
+ * properties (so far, connection status, dpms, mode list & edid) and
+ * generate a hotplug event so userspace knows there's a new connector
+ * available.
+ *
+ * Note:
+ * This routine should only be called *once* for each DRM minor registered.
+ * A second call for an already registered device will trigger the BUG_ON
+ * below.
+ */
+int drm_sysfs_connector_add(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ int attr_cnt = 0;
+ int opt_cnt = 0;
+ int i;
+ int ret = 0;
+
+ /* We shouldn't get called more than once for the same connector */
+ BUG_ON(device_is_registered(&connector->kdev));
+
+ connector->kdev.parent = &dev->primary->kdev;
+ connector->kdev.class = drm_class;
+ connector->kdev.release = drm_sysfs_device_release;
+
+ DRM_DEBUG("adding \"%s\" to sysfs\n",
+ drm_get_connector_name(connector));
+
+ dev_set_name(&connector->kdev, "card%d-%s",
+ dev->primary->index, drm_get_connector_name(connector));
+ ret = device_register(&connector->kdev);
+
+ if (ret) {
+ DRM_ERROR("failed to register connector device: %d\n", ret);
+ goto out;
+ }
+
+ /* Standard attributes */
+
+ for (attr_cnt = 0; attr_cnt < ARRAY_SIZE(connector_attrs); attr_cnt++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs[attr_cnt]);
+ if (ret)
+ goto err_out_files;
+ }
+
+ /* Optional attributes */
+ /*
+ * In the long run it maybe a good idea to make one set of
+ * optionals per connector type.
+ */
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ for (opt_cnt = 0; opt_cnt < ARRAY_SIZE(connector_attrs_opt1); opt_cnt++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs_opt1[opt_cnt]);
+ if (ret)
+ goto err_out_files;
+ }
+ break;
+ default:
+ break;
+ }
+
+ ret = sysfs_create_bin_file(&connector->kdev.kobj, &edid_attr);
+ if (ret)
+ goto err_out_files;
+
+ /* Let userspace know we have a new connector */
+ drm_sysfs_hotplug_event(dev);
+
+ return 0;
+
+err_out_files:
+ for (i = 0; i < opt_cnt; i++)
+ device_remove_file(&connector->kdev, &connector_attrs_opt1[i]);
+ for (i = 0; i < attr_cnt; i++)
+ device_remove_file(&connector->kdev, &connector_attrs[i]);
+ device_unregister(&connector->kdev);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(drm_sysfs_connector_add);
+
+/**
+ * drm_sysfs_connector_remove - remove an connector device from sysfs
+ * @connector: connector to remove
+ *
+ * Remove @connector and its associated attributes from sysfs. Note that
+ * the device model core will take care of sending the "remove" uevent
+ * at this time, so we don't need to do it.
+ *
+ * Note:
+ * This routine should only be called if the connector was previously
+ * successfully registered. If @connector hasn't been registered yet,
+ * you'll likely see a panic somewhere deep in sysfs code when called.
+ */
+void drm_sysfs_connector_remove(struct drm_connector *connector)
+{
+ int i;
+
+ DRM_DEBUG("removing \"%s\" from sysfs\n",
+ drm_get_connector_name(connector));
+
+ for (i = 0; i < ARRAY_SIZE(connector_attrs); i++)
+ device_remove_file(&connector->kdev, &connector_attrs[i]);
+ sysfs_remove_bin_file(&connector->kdev.kobj, &edid_attr);
+ device_unregister(&connector->kdev);
+}
+EXPORT_SYMBOL(drm_sysfs_connector_remove);
+
+/**
+ * drm_sysfs_hotplug_event - generate a DRM uevent
+ * @dev: DRM device
+ *
+ * Send a uevent for the DRM device specified by @dev. Currently we only
+ * set HOTPLUG=1 in the uevent environment, but this could be expanded to
+ * deal with other types of events.
+ */
+void drm_sysfs_hotplug_event(struct drm_device *dev)
+{
+ char *event_string = "HOTPLUG=1";
+ char *envp[] = { event_string, NULL };
+
+ DRM_DEBUG("generating hotplug event\n");
+
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
+}
+EXPORT_SYMBOL(drm_sysfs_hotplug_event);
+
+/**
+ * drm_sysfs_device_add - adds a class device to sysfs for a character driver
+ * @dev: DRM device to be added
+ * @head: DRM head in question
+ *
+ * Add a DRM device to the DRM's device model class. We use @dev's PCI device
+ * as the parent for the Linux device, and make sure it has a file containing
+ * the driver we're using (for userspace compatibility).
+ */
+int drm_sysfs_device_add(struct drm_minor *minor)
+{
+ int err;
+ char *minor_str;
+
+ minor->kdev.parent = minor->dev->dev;
+
+ minor->kdev.class = drm_class;
+ minor->kdev.release = drm_sysfs_device_release;
+ minor->kdev.devt = minor->device;
+ minor->kdev.type = &drm_sysfs_device_minor;
+ if (minor->type == DRM_MINOR_CONTROL)
+ minor_str = "controlD%d";
+ else if (minor->type == DRM_MINOR_RENDER)
+ minor_str = "renderD%d";
+ else
+ minor_str = "card%d";
+
+ dev_set_name(&minor->kdev, minor_str, minor->index);
+
+ err = device_register(&minor->kdev);
+ if (err) {
+ DRM_ERROR("device add failed: %d\n", err);
+ goto err_out;
+ }
+
+ return 0;
+
+err_out:
+ return err;
+}
+
+/**
+ * drm_sysfs_device_remove - remove DRM device
+ * @dev: DRM device to remove
+ *
+ * This call unregisters and cleans up a class device that was created with a
+ * call to drm_sysfs_device_add()
+ */
+void drm_sysfs_device_remove(struct drm_minor *minor)
+{
+ device_unregister(&minor->kdev);
+}
+
+
+/**
+ * drm_class_device_register - Register a struct device in the drm class.
+ *
+ * @dev: pointer to struct device to register.
+ *
+ * @dev should have all relevant members pre-filled with the exception
+ * of the class member. In particular, the device_type member must
+ * be set.
+ */
+
+int drm_class_device_register(struct device *dev)
+{
+ dev->class = drm_class;
+ return device_register(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_register);
+
+void drm_class_device_unregister(struct device *dev)
+{
+ return device_unregister(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_unregister);
--- /dev/null
+#include "drmP.h"
+
+#define CREATE_TRACE_POINTS
+#include "drm_trace.h"
--- /dev/null
+/**
+ * \file drm_vm.c
+ * Memory mapping for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#if defined(__ia64__)
+#include <linux/efi.h>
+#include <linux/slab.h>
+#endif
+
+static void drm_vm_open(struct vm_area_struct *vma);
+static void drm_vm_close(struct vm_area_struct *vma);
+
+static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__i386__) || defined(__x86_64__)
+ if (boot_cpu_data.x86 > 3 && map_type != _DRM_AGP) {
+ pgprot_val(tmp) |= _PAGE_PCD;
+ pgprot_val(tmp) &= ~_PAGE_PWT;
+ }
+#elif defined(__powerpc__)
+ pgprot_val(tmp) |= _PAGE_NO_CACHE;
+ if (map_type == _DRM_REGISTERS)
+ pgprot_val(tmp) |= _PAGE_GUARDED;
+#elif defined(__ia64__)
+ if (efi_range_is_wc(vma->vm_start, vma->vm_end -
+ vma->vm_start))
+ tmp = pgprot_writecombine(tmp);
+ else
+ tmp = pgprot_noncached(tmp);
+#elif defined(__sparc__) || defined(__arm__)
+ tmp = pgprot_noncached(tmp);
+#endif
+ return tmp;
+}
+
+static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ tmp |= _PAGE_NO_CACHE;
+#endif
+ return tmp;
+}
+
+/**
+ * \c fault method for AGP virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Find the right map and if it's AGP memory find the real physical page to
+ * map, get the page, increment the use count and return it.
+ */
+#if __OS_HAS_AGP
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ struct drm_hash_item *hash;
+
+ /*
+ * Find the right map
+ */
+ if (!drm_core_has_AGP(dev))
+ goto vm_fault_error;
+
+ if (!dev->agp || !dev->agp->cant_use_aperture)
+ goto vm_fault_error;
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash))
+ goto vm_fault_error;
+
+ r_list = drm_hash_entry(hash, struct drm_map_list, hash);
+ map = r_list->map;
+
+ if (map && map->type == _DRM_AGP) {
+ /*
+ * Using vm_pgoff as a selector forces us to use this unusual
+ * addressing scheme.
+ */
+ resource_size_t offset = (unsigned long)vmf->virtual_address -
+ vma->vm_start;
+ resource_size_t baddr = map->offset + offset;
+ struct drm_agp_mem *agpmem;
+ struct page *page;
+
+#ifdef __alpha__
+ /*
+ * Adjust to a bus-relative address
+ */
+ baddr -= dev->hose->mem_space->start;
+#endif
+
+ /*
+ * It's AGP memory - find the real physical page to map
+ */
+ list_for_each_entry(agpmem, &dev->agp->memory, head) {
+ if (agpmem->bound <= baddr &&
+ agpmem->bound + agpmem->pages * PAGE_SIZE > baddr)
+ break;
+ }
+
+ if (&agpmem->head == &dev->agp->memory)
+ goto vm_fault_error;
+
+ /*
+ * Get the page, inc the use count, and return it
+ */
+ offset = (baddr - agpmem->bound) >> PAGE_SHIFT;
+ page = agpmem->memory->pages[offset];
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG
+ ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n",
+ (unsigned long long)baddr,
+ agpmem->memory->pages[offset],
+ (unsigned long long)offset,
+ page_count(page));
+ return 0;
+ }
+vm_fault_error:
+ return VM_FAULT_SIGBUS; /* Disallow mremap */
+}
+#else /* __OS_HAS_AGP */
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+#endif /* __OS_HAS_AGP */
+
+/**
+ * \c nopage method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Get the mapping, find the real physical page to map, get the page, and
+ * return it.
+ */
+static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ unsigned long offset;
+ unsigned long i;
+ struct page *page;
+
+ if (!map)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ i = (unsigned long)map->handle + offset;
+ page = vmalloc_to_page((void *)i);
+ if (!page)
+ return VM_FAULT_SIGBUS;
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("shm_fault 0x%lx\n", offset);
+ return 0;
+}
+
+/**
+ * \c close method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Deletes map information if we are the last
+ * person to close a mapping and it's not in the global maplist.
+ */
+static void drm_vm_shm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+ int found_maps = 0;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ map = vma->vm_private_data;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma->vm_private_data == map)
+ found_maps++;
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ }
+ }
+
+ /* We were the only map that was found */
+ if (found_maps == 1 && map->flags & _DRM_REMOVABLE) {
+ /* Check to see if we are in the maplist, if we are not, then
+ * we delete this mappings information.
+ */
+ found_maps = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map == map)
+ found_maps++;
+ }
+
+ if (!found_maps) {
+ drm_dma_handle_t dmah;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+ iounmap(map->handle);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * \c fault method for DMA virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the page number from the page offset and get it from drm_device_dma::pagelist.
+ */
+static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_device_dma *dma = dev->dma;
+ unsigned long offset;
+ unsigned long page_nr;
+ struct page *page;
+
+ if (!dma)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!dma->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
+ page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */
+ page = virt_to_page((dma->pagelist[page_nr] + (offset & (~PAGE_MASK))));
+
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("dma_fault 0x%lx (page %lu)\n", offset, page_nr);
+ return 0;
+}
+
+/**
+ * \c fault method for scatter-gather virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
+ */
+static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long offset;
+ unsigned long map_offset;
+ unsigned long page_offset;
+ struct page *page;
+
+ if (!entry)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!entry->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ map_offset = map->offset - (unsigned long)dev->sg->virtual;
+ page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT);
+ page = entry->pagelist[page_offset];
+ get_page(page);
+ vmf->page = page;
+
+ return 0;
+}
+
+static int drm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_fault(vma, vmf);
+}
+
+static int drm_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_shm_fault(vma, vmf);
+}
+
+static int drm_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_dma_fault(vma, vmf);
+}
+
+static int drm_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_sg_fault(vma, vmf);
+}
+
+/** AGP virtual memory operations */
+static const struct vm_operations_struct drm_vm_ops = {
+ .fault = drm_vm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Shared virtual memory operations */
+static const struct vm_operations_struct drm_vm_shm_ops = {
+ .fault = drm_vm_shm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_shm_close,
+};
+
+/** DMA virtual memory operations */
+static const struct vm_operations_struct drm_vm_dma_ops = {
+ .fault = drm_vm_dma_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Scatter-gather virtual memory operations */
+static const struct vm_operations_struct drm_vm_sg_ops = {
+ .fault = drm_vm_sg_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/**
+ * \c open method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Create a new drm_vma_entry structure as the \p vma private data entry and
+ * add it to drm_device::vmalist.
+ */
+void drm_vm_open_locked(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *vma_entry;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_inc(&dev->vma_count);
+
+ vma_entry = kmalloc(sizeof(*vma_entry), GFP_KERNEL);
+ if (vma_entry) {
+ vma_entry->vma = vma;
+ vma_entry->pid = current->pid;
+ list_add(&vma_entry->head, &dev->vmalist);
+ }
+}
+
+static void drm_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_vm_open_locked(vma);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+void drm_vm_close_locked(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ break;
+ }
+ }
+}
+
+/**
+ * \c close method for all virtual memory types.
+ *
+ * \param vma virtual memory area.
+ *
+ * Search the \p vma private data entry in drm_device::vmalist, unlink it, and
+ * free it.
+ */
+static void drm_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_vm_close_locked(vma);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * Sets the virtual memory area operations structure to vm_dma_ops, the file
+ * pointer, and calls vm_open().
+ */
+static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev;
+ struct drm_device_dma *dma;
+ unsigned long length = vma->vm_end - vma->vm_start;
+
+ dev = priv->minor->dev;
+ dma = dev->dma;
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ /* Length must match exact page count */
+ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
+ return -EINVAL;
+ }
+
+ if (!capable(CAP_SYS_ADMIN) &&
+ (dma->flags & _DRM_DMA_USE_PCI_RO)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ vma->vm_ops = &drm_vm_dma_ops;
+
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+static resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
+{
+#ifdef __alpha__
+ return dev->hose->dense_mem_base - dev->hose->mem_space->start;
+#else
+ return 0;
+#endif
+}
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the virtual memory area has no offset associated with it then it's a DMA
+ * area, so calls mmap_dma(). Otherwise searches the map in drm_device::maplist,
+ * checks that the restricted flag is not set, sets the virtual memory operations
+ * according to the mapping type and remaps the pages. Finally sets the file
+ * pointer and calls vm_open().
+ */
+int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ resource_size_t offset = 0;
+ struct drm_hash_item *hash;
+
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ if (!priv->authenticated)
+ return -EACCES;
+
+ /* We check for "dma". On Apple's UniNorth, it's valid to have
+ * the AGP mapped at physical address 0
+ * --BenH.
+ */
+ if (!vma->vm_pgoff
+#if __OS_HAS_AGP
+ && (!dev->agp
+ || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE)
+#endif
+ )
+ return drm_mmap_dma(filp, vma);
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) {
+ DRM_ERROR("Could not find map\n");
+ return -EINVAL;
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
+ return -EPERM;
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ switch (map->type) {
+#if !defined(__arm__)
+ case _DRM_AGP:
+ if (drm_core_has_AGP(dev) && dev->agp->cant_use_aperture) {
+ /*
+ * On some platforms we can't talk to bus dma address from the CPU, so for
+ * memory of type DRM_AGP, we'll deal with sorting out the real physical
+ * pages and mappings in fault()
+ */
+#if defined(__powerpc__)
+ pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+#endif
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ }
+ /* fall through to _DRM_FRAME_BUFFER... */
+#endif
+ case _DRM_FRAME_BUFFER:
+ case _DRM_REGISTERS:
+ offset = drm_core_get_reg_ofs(dev);
+ vma->vm_flags |= VM_IO; /* not in core dump */
+ vma->vm_page_prot = drm_io_prot(map->type, vma);
+#if !defined(__arm__)
+ if (io_remap_pfn_range(vma, vma->vm_start,
+ (map->offset + offset) >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+#else
+ if (remap_pfn_range(vma, vma->vm_start,
+ (map->offset + offset) >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+#endif
+
+ DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
+ " offset = 0x%llx\n",
+ map->type,
+ vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset));
+
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ case _DRM_CONSISTENT:
+ /* Consistent memory is really like shared memory. But
+ * it's allocated in a different way, so avoid fault */
+ if (remap_pfn_range(vma, vma->vm_start,
+ page_to_pfn(virt_to_page(map->handle)),
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ /* fall through to _DRM_SHM */
+ case _DRM_SHM:
+ vma->vm_ops = &drm_vm_shm_ops;
+ vma->vm_private_data = (void *)map;
+ /* Don't let this area swap. Change when
+ DRM_KERNEL advisory is supported. */
+ vma->vm_flags |= VM_RESERVED;
+ break;
+ case _DRM_SCATTER_GATHER:
+ vma->vm_ops = &drm_vm_sg_ops;
+ vma->vm_private_data = (void *)map;
+ vma->vm_flags |= VM_RESERVED;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ break;
+ default:
+ return -EINVAL; /* This should never happen. */
+ }
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+int drm_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_mmap_locked(filp, vma);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mmap);
--- /dev/null
+#
+# Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful but, except
+# as otherwise stated in writing, without any warranty; without even the
+# implied warranty of merchantability or fitness for a particular purpose.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Imagination Technologies Ltd. <gpl-support@imgtec.com>
+# Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+#
+#
+
+MODULE = drm
+
+INCLUDES =
+
+SOURCES =
+
+ifneq ($(SUPPORT_DRI_DRM),1)
+$(error "SUPPORT_DRI_DRM must be set")
+endif
+
+SOURCES_ROOT = ..
+
+INT_SOURCE_LIST += \
+ pvr_drm_stubs.c
+
+INT_SOURCES := $(addprefix $(SOURCES_ROOT)/,$(INT_SOURCE_LIST))
+SOURCES += $(INT_SOURCES)
+
+EXT_SOURCE_DIR := $(KERNELDIR)/drivers/gpu/drm
+
+EXT_BUILD_DIR := $(SOURCES_ROOT)/kbuild/tmp_$(PVR_BUILD_DIR)_$(BUILD)_$(MODULE)
+
+$(src)/$(EXT_BUILD_DIR)/%.c: $(EXT_SOURCE_DIR)/%.c
+ $(SILENT)$(MKDIR) $(dir $@)
+ $(SILENT)$(CP) $< $@
+
+clean-dirs += $(EXT_BUILD_DIR)
+
+EXT_SOURCE_LIST := \
+ drm_auth.c drm_bufs.c drm_cache.c \
+ drm_context.c drm_dma.c drm_drawable.c \
+ drm_drv.c drm_fops.c drm_gem.c drm_ioctl.c drm_irq.c \
+ drm_lock.c drm_memory.c drm_proc.c drm_stub.c drm_vm.c \
+ drm_agpsupport.c drm_scatter.c ati_pcigart.c drm_pci.c \
+ drm_sysfs.c drm_hashtab.c drm_sman.c drm_mm.c \
+ drm_crtc.c drm_modes.c drm_edid.c \
+ drm_info.c drm_debugfs.c drm_encoder_slave.c
+
+EXT_SOURCES := $(addprefix $(EXT_BUILD_DIR)/,$(EXT_SOURCE_LIST))
+SOURCES += $(EXT_SOURCES)
+
+INCLUDES += \
+ -I$(KERNELDIR)/include/drm \
+ -I$(EXT_SOURCE_DIR)
+
+MODULE_CFLAGS += -DCONFIG_PCI -Wno-error
+
+include $(EURASIAROOT)/eurasiacon/build/linux/kbuild/Makefile.kbuild_subdir_common
--- /dev/null
+/**
+ * \file ati_pcigart.c
+ * ATI PCI GART support
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
+
+static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
+ PAGE_SIZE,
+ gart_info->table_mask);
+ if (gart_info->table_handle == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void drm_ati_free_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ drm_pci_free(dev, gart_info->table_handle);
+ gart_info->table_handle = NULL;
+}
+
+int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long pages;
+ int i;
+ int max_pages;
+
+ /* we need to support large memory configurations */
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ return 0;
+ }
+
+ if (gart_info->bus_addr) {
+
+ max_pages = (gart_info->table_size / sizeof(u32));
+ pages = (entry->pages <= max_pages)
+ ? entry->pages : max_pages;
+
+ for (i = 0; i < pages; i++) {
+ if (!entry->busaddr[i])
+ break;
+ pci_unmap_page(dev->pdev, entry->busaddr[i],
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
+ gart_info->bus_addr = 0;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
+ gart_info->table_handle) {
+ drm_ati_free_pcigart_table(dev, gart_info);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
+
+int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_local_map *map = &gart_info->mapping;
+ struct drm_sg_mem *entry = dev->sg;
+ void *address = NULL;
+ unsigned long pages;
+ u32 *pci_gart = NULL, page_base, gart_idx;
+ dma_addr_t bus_address = 0;
+ int i, j, ret = 0;
+ int max_ati_pages, max_real_pages;
+
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ goto done;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
+
+ ret = drm_ati_alloc_pcigart_table(dev, gart_info);
+ if (ret) {
+ DRM_ERROR("cannot allocate PCI GART page!\n");
+ goto done;
+ }
+
+ pci_gart = gart_info->table_handle->vaddr;
+ address = gart_info->table_handle->vaddr;
+ bus_address = gart_info->table_handle->busaddr;
+ } else {
+ address = gart_info->addr;
+ bus_address = gart_info->bus_addr;
+ DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
+ (unsigned long long)bus_address,
+ (unsigned long)address);
+ }
+
+
+ max_ati_pages = (gart_info->table_size / sizeof(u32));
+ max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE);
+ pages = (entry->pages <= max_real_pages)
+ ? entry->pages : max_real_pages;
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ memset(pci_gart, 0, max_ati_pages * sizeof(u32));
+ } else {
+ memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32));
+ }
+
+ gart_idx = 0;
+ for (i = 0; i < pages; i++) {
+ /* we need to support large memory configurations */
+ entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i],
+ 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (entry->busaddr[i] == 0) {
+ DRM_ERROR("unable to map PCIGART pages!\n");
+ drm_ati_pcigart_cleanup(dev, gart_info);
+ address = NULL;
+ bus_address = 0;
+ goto done;
+ }
+ page_base = (u32) entry->busaddr[i];
+
+ for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
+ u32 val;
+
+ switch(gart_info->gart_reg_if) {
+ case DRM_ATI_GART_IGP:
+ val = page_base | 0xc;
+ break;
+ case DRM_ATI_GART_PCIE:
+ val = (page_base >> 8) | 0xc;
+ break;
+ default:
+ case DRM_ATI_GART_PCI:
+ val = page_base;
+ break;
+ }
+ if (gart_info->gart_table_location ==
+ DRM_ATI_GART_MAIN)
+ pci_gart[gart_idx] = cpu_to_le32(val);
+ else
+ DRM_WRITE32(map, gart_idx * sizeof(u32), val);
+ gart_idx++;
+ page_base += ATI_PCIGART_PAGE_SIZE;
+ }
+ }
+ ret = 1;
+
+#if defined(__i386__) || defined(__x86_64__)
+ wbinvd();
+#else
+ mb();
+#endif
+
+ done:
+ gart_info->addr = address;
+ gart_info->bus_addr = bus_address;
+ return ret;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_init);
--- /dev/null
+/**
+ * \file drm_agpsupport.c
+ * DRM support for AGP/GART backend
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/module.h>
+
+#if __OS_HAS_AGP
+
+#include <asm/agp.h>
+
+/**
+ * Get AGP information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a (output) drm_agp_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been initialized and acquired and fills in the
+ * drm_agp_info structure with the information in drm_agp_head::agp_info.
+ */
+int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info)
+{
+ DRM_AGP_KERN *kern;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ kern = &dev->agp->agp_info;
+ info->agp_version_major = kern->version.major;
+ info->agp_version_minor = kern->version.minor;
+ info->mode = kern->mode;
+ info->aperture_base = kern->aper_base;
+ info->aperture_size = kern->aper_size * 1024 * 1024;
+ info->memory_allowed = kern->max_memory << PAGE_SHIFT;
+ info->memory_used = kern->current_memory << PAGE_SHIFT;
+ info->id_vendor = kern->device->vendor;
+ info->id_device = kern->device->device;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_info);
+
+int drm_agp_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_info *info = data;
+ int err;
+
+ err = drm_agp_info(dev, info);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/**
+ * Acquire the AGP device.
+ *
+ * \param dev DRM device that is to acquire AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire(struct drm_device * dev)
+{
+ if (!dev->agp)
+ return -ENODEV;
+ if (dev->agp->acquired)
+ return -EBUSY;
+ if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev)))
+ return -ENODEV;
+ dev->agp->acquired = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_acquire);
+
+/**
+ * Acquire the AGP device (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_acquire((struct drm_device *) file_priv->minor->dev);
+}
+
+/**
+ * Release the AGP device.
+ *
+ * \param dev DRM device that is to release AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired and calls \c agp_backend_release.
+ */
+int drm_agp_release(struct drm_device * dev)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ agp_backend_release(dev->agp->bridge);
+ dev->agp->acquired = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_release);
+
+int drm_agp_release_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_release(dev);
+}
+
+/**
+ * Enable the AGP bus.
+ *
+ * \param dev DRM device that has previously acquired AGP.
+ * \param mode Requested AGP mode.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired but not enabled, and calls
+ * \c agp_enable.
+ */
+int drm_agp_enable(struct drm_device * dev, struct drm_agp_mode mode)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ dev->agp->mode = mode.mode;
+ agp_enable(dev->agp->bridge, mode.mode);
+ dev->agp->enabled = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_enable);
+
+int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_mode *mode = data;
+
+ return drm_agp_enable(dev, *mode);
+}
+
+/**
+ * Allocate AGP memory.
+ *
+ * \param inode device inode.
+ * \param file_priv file private pointer.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired, allocates the
+ * memory via alloc_agp() and creates a drm_agp_mem entry for it.
+ */
+int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+ DRM_AGP_MEM *memory;
+ unsigned long pages;
+ u32 type;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ type = (u32) request->type;
+ if (!(memory = drm_alloc_agp(dev, pages, type))) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ entry->handle = (unsigned long)memory->key + 1;
+ entry->memory = memory;
+ entry->bound = 0;
+ entry->pages = pages;
+ list_add(&entry->head, &dev->agp->memory);
+
+ request->handle = entry->handle;
+ request->physical = memory->physical;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_alloc);
+
+
+int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_alloc(dev, request);
+}
+
+/**
+ * Search for the AGP memory entry associated with a handle.
+ *
+ * \param dev DRM device structure.
+ * \param handle AGP memory handle.
+ * \return pointer to the drm_agp_mem structure associated with \p handle.
+ *
+ * Walks through drm_agp_head::memory until finding a matching handle.
+ */
+static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device * dev,
+ unsigned long handle)
+{
+ struct drm_agp_mem *entry;
+
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if (entry->handle == handle)
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+ * Unbind AGP memory from the GATT (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and acquired, looks-up the AGP memory
+ * entry and passes it to the unbind_agp() function.
+ */
+int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int ret;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (!entry->bound)
+ return -EINVAL;
+ ret = drm_unbind_agp(entry->memory);
+ if (ret == 0)
+ entry->bound = 0;
+ return ret;
+}
+EXPORT_SYMBOL(drm_agp_unbind);
+
+
+int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_unbind(dev, request);
+}
+
+/**
+ * Bind AGP memory into the GATT (ioctl)
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and that no memory
+ * is currently bound into the GATT. Looks-up the AGP memory entry and passes
+ * it to bind_agp() function.
+ */
+int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int retcode;
+ int page;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ return -EINVAL;
+ page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
+ if ((retcode = drm_bind_agp(entry->memory, page)))
+ return retcode;
+ entry->bound = dev->agp->base + (page << PAGE_SHIFT);
+ DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
+ dev->agp->base, entry->bound);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_bind);
+
+
+int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_bind(dev, request);
+}
+
+/**
+ * Free AGP memory (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and looks up the
+ * AGP memory entry. If the memory it's currently bound, unbind it via
+ * unbind_agp(). Frees it via free_agp() as well as the entry itself
+ * and unlinks from the doubly linked list it's inserted in.
+ */
+int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+
+ list_del(&entry->head);
+
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_free);
+
+
+
+int drm_agp_free_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_free(dev, request);
+}
+
+/**
+ * Initialize the AGP resources.
+ *
+ * \return pointer to a drm_agp_head structure.
+ *
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
+ */
+struct drm_agp_head *drm_agp_init(struct drm_device *dev)
+{
+ struct drm_agp_head *head = NULL;
+
+ if (!(head = kmalloc(sizeof(*head), GFP_KERNEL)))
+ return NULL;
+ memset((void *)head, 0, sizeof(*head));
+ head->bridge = agp_find_bridge(dev->pdev);
+ if (!head->bridge) {
+ if (!(head->bridge = agp_backend_acquire(dev->pdev))) {
+ kfree(head);
+ return NULL;
+ }
+ agp_copy_info(head->bridge, &head->agp_info);
+ agp_backend_release(head->bridge);
+ } else {
+ agp_copy_info(head->bridge, &head->agp_info);
+ }
+ if (head->agp_info.chipset == NOT_SUPPORTED) {
+ kfree(head);
+ return NULL;
+ }
+ INIT_LIST_HEAD(&head->memory);
+ head->cant_use_aperture = head->agp_info.cant_use_aperture;
+ head->page_mask = head->agp_info.page_mask;
+ head->base = head->agp_info.aper_base;
+ return head;
+}
+
+/** Calls agp_allocate_memory() */
+DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data * bridge,
+ size_t pages, u32 type)
+{
+ return agp_allocate_memory(bridge, pages, type);
+}
+
+/** Calls agp_free_memory() */
+int drm_agp_free_memory(DRM_AGP_MEM * handle)
+{
+ if (!handle)
+ return 0;
+ agp_free_memory(handle);
+ return 1;
+}
+
+/** Calls agp_bind_memory() */
+int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start)
+{
+ if (!handle)
+ return -EINVAL;
+ return agp_bind_memory(handle, start);
+}
+
+/** Calls agp_unbind_memory() */
+int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
+{
+ if (!handle)
+ return -EINVAL;
+ return agp_unbind_memory(handle);
+}
+
+/**
+ * Binds a collection of pages into AGP memory at the given offset, returning
+ * the AGP memory structure containing them.
+ *
+ * No reference is held on the pages during this time -- it is up to the
+ * caller to handle that.
+ */
+DRM_AGP_MEM *
+drm_agp_bind_pages(struct drm_device *dev,
+ struct page **pages,
+ unsigned long num_pages,
+ uint32_t gtt_offset,
+ u32 type)
+{
+ DRM_AGP_MEM *mem;
+ int ret, i;
+
+ DRM_DEBUG("\n");
+
+ mem = drm_agp_allocate_memory(dev->agp->bridge, num_pages,
+ type);
+ if (mem == NULL) {
+ DRM_ERROR("Failed to allocate memory for %ld pages\n",
+ num_pages);
+ return NULL;
+ }
+
+ for (i = 0; i < num_pages; i++)
+ mem->pages[i] = pages[i];
+ mem->page_count = num_pages;
+
+ mem->is_flushed = true;
+ ret = drm_agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
+ if (ret != 0) {
+ DRM_ERROR("Failed to bind AGP memory: %d\n", ret);
+ agp_free_memory(mem);
+ return NULL;
+ }
+
+ return mem;
+}
+EXPORT_SYMBOL(drm_agp_bind_pages);
+
+void drm_agp_chipset_flush(struct drm_device *dev)
+{
+ agp_flush_chipset(dev->agp->bridge);
+}
+EXPORT_SYMBOL(drm_agp_chipset_flush);
+
+#endif /* __OS_HAS_AGP */
--- /dev/null
+/**
+ * \file drm_auth.c
+ * IOCTLs for authentication
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Find the file with the given magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches in drm_device::magiclist within all files with the same hash key
+ * the one with matching magic number, while holding the drm_device::struct_mutex
+ * lock.
+ */
+static struct drm_file *drm_find_file(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_file *retval = NULL;
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ if (!drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ retval = pt->priv;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return retval;
+}
+
+/**
+ * Adds a magic number.
+ *
+ * \param dev DRM device.
+ * \param priv file private data.
+ * \param magic magic number.
+ *
+ * Creates a drm_magic_entry structure and appends to the linked list
+ * associated the magic number hash key in drm_device::magiclist, while holding
+ * the drm_device::struct_mutex lock.
+ */
+static int drm_add_magic(struct drm_master *master, struct drm_file *priv,
+ drm_magic_t magic)
+{
+ struct drm_magic_entry *entry;
+ struct drm_device *dev = master->minor->dev;
+ DRM_DEBUG("%d\n", magic);
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+ memset(entry, 0, sizeof(*entry));
+ entry->priv = priv;
+ entry->hash_item.key = (unsigned long)magic;
+ mutex_lock(&dev->struct_mutex);
+ drm_ht_insert_item(&master->magiclist, &entry->hash_item);
+ list_add_tail(&entry->head, &master->magicfree);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Remove a magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches and unlinks the entry in drm_device::magiclist with the magic
+ * number hash key, while holding the drm_device::struct_mutex lock.
+ */
+static int drm_remove_magic(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ DRM_DEBUG("%d\n", magic);
+
+ mutex_lock(&dev->struct_mutex);
+ if (drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ drm_ht_remove_item(&master->magiclist, hash);
+ list_del(&pt->head);
+ mutex_unlock(&dev->struct_mutex);
+
+ kfree(pt);
+
+ return 0;
+}
+
+/**
+ * Get a unique magic number (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a resulting drm_auth structure.
+ * \return zero on success, or a negative number on failure.
+ *
+ * If there is a magic number in drm_file::magic then use it, otherwise
+ * searches an unique non-zero magic number and add it associating it with \p
+ * file_priv.
+ */
+int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ static drm_magic_t sequence = 0;
+ static DEFINE_SPINLOCK(lock);
+ struct drm_auth *auth = data;
+
+ /* Find unique magic */
+ if (file_priv->magic) {
+ auth->magic = file_priv->magic;
+ } else {
+ do {
+ spin_lock(&lock);
+ if (!sequence)
+ ++sequence; /* reserve 0 */
+ auth->magic = sequence++;
+ spin_unlock(&lock);
+ } while (drm_find_file(file_priv->master, auth->magic));
+ file_priv->magic = auth->magic;
+ drm_add_magic(file_priv->master, file_priv, auth->magic);
+ }
+
+ DRM_DEBUG("%u\n", auth->magic);
+
+ return 0;
+}
+
+/**
+ * Authenticate with a magic.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_auth structure.
+ * \return zero if authentication successed, or a negative number otherwise.
+ *
+ * Checks if \p file_priv is associated with the magic number passed in \arg.
+ */
+int drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_auth *auth = data;
+ struct drm_file *file;
+
+ DRM_DEBUG("%u\n", auth->magic);
+ if ((file = drm_find_file(file_priv->master, auth->magic))) {
+ file->authenticated = 1;
+ drm_remove_magic(file_priv->master, auth->magic);
+ return 0;
+ }
+ return -EINVAL;
+}
--- /dev/null
+/**
+ * \file drm_bufs.c
+ * Generic buffer template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/log2.h>
+#include <asm/shmparam.h>
+#include "drmP.h"
+
+resource_size_t drm_get_resource_start(struct drm_device *dev, unsigned int resource)
+{
+ return pci_resource_start(dev->pdev, resource);
+}
+EXPORT_SYMBOL(drm_get_resource_start);
+
+resource_size_t drm_get_resource_len(struct drm_device *dev, unsigned int resource)
+{
+ return pci_resource_len(dev->pdev, resource);
+}
+
+EXPORT_SYMBOL(drm_get_resource_len);
+
+static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
+ struct drm_local_map *map)
+{
+ struct drm_map_list *entry;
+ list_for_each_entry(entry, &dev->maplist, head) {
+ /*
+ * Because the kernel-userspace ABI is fixed at a 32-bit offset
+ * while PCI resources may live above that, we ignore the map
+ * offset for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+ * It is assumed that each driver will have only one resource of
+ * each type.
+ */
+ if (!entry->map ||
+ map->type != entry->map->type ||
+ entry->master != dev->primary->master)
+ continue;
+ switch (map->type) {
+ case _DRM_SHM:
+ if (map->flags != _DRM_CONTAINS_LOCK)
+ break;
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ return entry;
+ default: /* Make gcc happy */
+ ;
+ }
+ if (entry->map->offset == map->offset)
+ return entry;
+ }
+
+ return NULL;
+}
+
+static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
+ unsigned long user_token, int hashed_handle, int shm)
+{
+ int use_hashed_handle, shift;
+ unsigned long add;
+
+#if (BITS_PER_LONG == 64)
+ use_hashed_handle = ((user_token & 0xFFFFFFFF00000000UL) || hashed_handle);
+#elif (BITS_PER_LONG == 32)
+ use_hashed_handle = hashed_handle;
+#else
+#error Unsupported long size. Neither 64 nor 32 bits.
+#endif
+
+ if (!use_hashed_handle) {
+ int ret;
+ hash->key = user_token >> PAGE_SHIFT;
+ ret = drm_ht_insert_item(&dev->map_hash, hash);
+ if (ret != -EINVAL)
+ return ret;
+ }
+
+ shift = 0;
+ add = DRM_MAP_HASH_OFFSET >> PAGE_SHIFT;
+ if (shm && (SHMLBA > PAGE_SIZE)) {
+ int bits = ilog2(SHMLBA >> PAGE_SHIFT) + 1;
+
+ /* For shared memory, we have to preserve the SHMLBA
+ * bits of the eventual vma->vm_pgoff value during
+ * mmap(). Otherwise we run into cache aliasing problems
+ * on some platforms. On these platforms, the pgoff of
+ * a mmap() request is used to pick a suitable virtual
+ * address for the mmap() region such that it will not
+ * cause cache aliasing problems.
+ *
+ * Therefore, make sure the SHMLBA relevant bits of the
+ * hash value we use are equal to those in the original
+ * kernel virtual address.
+ */
+ shift = bits;
+ add |= ((user_token >> PAGE_SHIFT) & ((1UL << bits) - 1UL));
+ }
+
+ return drm_ht_just_insert_please(&dev->map_hash, hash,
+ user_token, 32 - PAGE_SHIFT - 3,
+ shift, add);
+}
+
+/**
+ * Core function to create a range of memory available for mapping by a
+ * non-root process.
+ *
+ * Adjusts the memory offset to its absolute value according to the mapping
+ * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where
+ * applicable and if supported by the kernel.
+ */
+static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags,
+ struct drm_map_list ** maplist)
+{
+ struct drm_local_map *map;
+ struct drm_map_list *list;
+ drm_dma_handle_t *dmah;
+ unsigned long user_token;
+ int ret;
+
+ map = kmalloc(sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ map->offset = offset;
+ map->size = size;
+ map->flags = flags;
+ map->type = type;
+
+ /* Only allow shared memory to be removable since we only keep enough
+ * book keeping information about shared memory to allow for removal
+ * when processes fork.
+ */
+ if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) {
+ kfree(map);
+ return -EINVAL;
+ }
+ DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n",
+ (unsigned long long)map->offset, map->size, map->type);
+
+ /* page-align _DRM_SHM maps. They are allocated here so there is no security
+ * hole created by that and it works around various broken drivers that use
+ * a non-aligned quantity to map the SAREA. --BenH
+ */
+ if (map->type == _DRM_SHM)
+ map->size = PAGE_ALIGN(map->size);
+
+ if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = NULL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
+ if (map->offset + (map->size-1) < map->offset ||
+ map->offset < virt_to_phys(high_memory)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#endif
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* Some drivers preinitialize some maps, without the X Server
+ * needing to be aware of it. Therefore, we just return success
+ * when the server tries to create a duplicate map.
+ */
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if (list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size,
+ list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+
+ if (drm_core_has_MTRR(dev)) {
+ if (map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING)) {
+ map->mtrr = mtrr_add(map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+ if (map->type == _DRM_REGISTERS) {
+ map->handle = ioremap(map->offset, map->size);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ }
+
+ break;
+ case _DRM_SHM:
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if(list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size, list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+ map->handle = vmalloc_user(map->size);
+ DRM_DEBUG("%lu %d %p\n",
+ map->size, drm_order(map->size), map->handle);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->offset = (unsigned long)map->handle;
+ if (map->flags & _DRM_CONTAINS_LOCK) {
+ /* Prevent a 2nd X Server from creating a 2nd lock */
+ if (dev->primary->master->lock.hw_lock != NULL) {
+ vfree(map->handle);
+ kfree(map);
+ return -EBUSY;
+ }
+ dev->sigdata.lock = dev->primary->master->lock.hw_lock = map->handle; /* Pointer to lock */
+ }
+ break;
+ case _DRM_AGP: {
+ struct drm_agp_mem *entry;
+ int valid = 0;
+
+ if (!drm_core_has_AGP(dev)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* In some cases (i810 driver), user space may have already
+ * added the AGP base itself, because dev->agp->base previously
+ * only got set during AGP enable. So, only add the base
+ * address if the map's offset isn't already within the
+ * aperture.
+ */
+ if (map->offset < dev->agp->base ||
+ map->offset > dev->agp->base +
+ dev->agp->agp_info.aper_size * 1024 * 1024 - 1) {
+ map->offset += dev->agp->base;
+ }
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+
+ /* This assumes the DRM is in total control of AGP space.
+ * It's not always the case as AGP can be in the control
+ * of user space (i.e. i810 driver). So this loop will get
+ * skipped and we double check that dev->agp->memory is
+ * actually set as well as being invalid before EPERM'ing
+ */
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if ((map->offset >= entry->bound) &&
+ (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ kfree(map);
+ return -EPERM;
+ }
+ DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n",
+ (unsigned long long)map->offset, map->size);
+
+ break;
+ }
+ case _DRM_GEM:
+ DRM_ERROR("tried to addmap GEM object\n");
+ break;
+ case _DRM_SCATTER_GATHER:
+ if (!dev->sg) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->offset += (unsigned long)dev->sg->virtual;
+ break;
+ case _DRM_CONSISTENT:
+ /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G,
+ * As we're limiting the address to 2^32-1 (or less),
+ * casting it down to 32 bits is no problem, but we
+ * need to point to a 64bit variable first. */
+ dmah = drm_pci_alloc(dev, map->size, map->size, 0xffffffffUL);
+ if (!dmah) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->handle = dmah->vaddr;
+ map->offset = (unsigned long)dmah->busaddr;
+ kfree(dmah);
+ break;
+ default:
+ kfree(map);
+ return -EINVAL;
+ }
+
+ list = kmalloc(sizeof(*list), GFP_KERNEL);
+ if (!list) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ return -EINVAL;
+ }
+ memset(list, 0, sizeof(*list));
+ list->map = map;
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&list->head, &dev->maplist);
+
+ /* Assign a 32-bit handle */
+ /* We do it here so that dev->struct_mutex protects the increment */
+ user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle :
+ map->offset;
+ ret = drm_map_handle(dev, &list->hash, user_token, 0,
+ (map->type == _DRM_SHM));
+ if (ret) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ kfree(list);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ list->user_token = list->hash.key << PAGE_SHIFT;
+ mutex_unlock(&dev->struct_mutex);
+
+ if (!(map->flags & _DRM_DRIVER))
+ list->master = dev->primary->master;
+ *maplist = list;
+ return 0;
+ }
+
+int drm_addmap(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map ** map_ptr)
+{
+ struct drm_map_list *list;
+ int rc;
+
+ rc = drm_addmap_core(dev, offset, size, type, flags, &list);
+ if (!rc)
+ *map_ptr = list->map;
+ return rc;
+}
+
+EXPORT_SYMBOL(drm_addmap);
+
+/**
+ * Ioctl to specify a range of memory that is available for mapping by a
+ * non-root process.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_map structure.
+ * \return zero on success or a negative value on error.
+ *
+ */
+int drm_addmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *maplist;
+ int err;
+
+ if (!(capable(CAP_SYS_ADMIN) || map->type == _DRM_AGP || map->type == _DRM_SHM))
+ return -EPERM;
+
+ err = drm_addmap_core(dev, map->offset, map->size, map->type,
+ map->flags, &maplist);
+
+ if (err)
+ return err;
+
+ /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */
+ map->handle = (void *)(unsigned long)maplist->user_token;
+ return 0;
+}
+
+/**
+ * Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ *
+ * Searches the map on drm_device::maplist, removes it from the list, see if
+ * its being used, and free any associate resource (such as MTRR's) if it's not
+ * being on use.
+ *
+ * \sa drm_addmap
+ */
+int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map)
+{
+ struct drm_map_list *r_list = NULL, *list_t;
+ drm_dma_handle_t dmah;
+ int found = 0;
+ struct drm_master *master;
+
+ /* Find the list entry for the map and remove it */
+ list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
+ if (r_list->map == map) {
+ master = r_list->master;
+ list_del(&r_list->head);
+ drm_ht_remove_key(&dev->map_hash,
+ r_list->user_token >> PAGE_SHIFT);
+ kfree(r_list);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ iounmap(map->handle);
+ /* FALLTHROUGH */
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr, map->offset, map->size);
+ DRM_DEBUG("mtrr_del=%d\n", retcode);
+ }
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ if (master) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_rmmap_locked);
+
+int drm_rmmap(struct drm_device *dev, struct drm_local_map *map)
+{
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_rmmap_locked(dev, map);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_rmmap);
+
+/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on
+ * the last close of the device, and this is necessary for cleanup when things
+ * exit uncleanly. Therefore, having userland manually remove mappings seems
+ * like a pointless exercise since they're going away anyway.
+ *
+ * One use case might be after addmap is allowed for normal users for SHM and
+ * gets used by drivers that the server doesn't need to care about. This seems
+ * unlikely.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_map structure.
+ * \return zero on success or a negative value on error.
+ */
+int drm_rmmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map &&
+ r_list->user_token == (unsigned long)request->handle &&
+ r_list->map->flags & _DRM_REMOVABLE) {
+ map = r_list->map;
+ break;
+ }
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if (list_empty(&dev->maplist) || !map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ /* Register and framebuffer maps are permanent */
+ if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ ret = drm_rmmap_locked(dev, map);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+/**
+ * Cleanup after an error on one of the addbufs() functions.
+ *
+ * \param dev DRM device.
+ * \param entry buffer entry where the error occurred.
+ *
+ * Frees any pages and buffers associated with the given entry.
+ */
+static void drm_cleanup_buf_error(struct drm_device * dev,
+ struct drm_buf_entry * entry)
+{
+ int i;
+
+ if (entry->seg_count) {
+ for (i = 0; i < entry->seg_count; i++) {
+ if (entry->seglist[i]) {
+ drm_pci_free(dev, entry->seglist[i]);
+ }
+ }
+ kfree(entry->seglist);
+
+ entry->seg_count = 0;
+ }
+
+ if (entry->buf_count) {
+ for (i = 0; i < entry->buf_count; i++) {
+ kfree(entry->buflist[i].dev_private);
+ }
+ kfree(entry->buflist);
+
+ entry->buf_count = 0;
+ }
+}
+
+#if __OS_HAS_AGP
+/**
+ * Add AGP buffers for DMA transfers.
+ *
+ * \param dev struct drm_device to which the buffers are to be added.
+ * \param request pointer to a struct drm_buf_desc describing the request.
+ * \return zero on success or a negative number on failure.
+ *
+ * After some sanity checks creates a drm_buf structure for each buffer and
+ * reallocates the buffer list of the same size order to accommodate the new
+ * buffers.
+ */
+int drm_addbufs_agp(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_agp_mem *agp_entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i, valid;
+ struct drm_buf **temp_buflist;
+
+ if (!dma)
+ return -EINVAL;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = dev->agp->base + request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lx\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ /* Make sure buffers are located in AGP memory that we own */
+ valid = 0;
+ list_for_each_entry(agp_entry, &dev->agp->memory, head) {
+ if ((agp_offset >= agp_entry->bound) &&
+ (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ DRM_DEBUG("zone invalid\n");
+ return -EINVAL;
+ }
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+EXPORT_SYMBOL(drm_addbufs_agp);
+#endif /* __OS_HAS_AGP */
+
+int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int count;
+ int order;
+ int size;
+ int total;
+ int page_order;
+ struct drm_buf_entry *entry;
+ drm_dma_handle_t *dmah;
+ struct drm_buf *buf;
+ int alignment;
+ unsigned long offset;
+ int i;
+ int byte_count;
+ int page_count;
+ unsigned long *temp_pagelist;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ DRM_DEBUG("count=%d, size=%d (%d), order=%d, queue_count=%d\n",
+ request->count, request->size, size, order, dev->queue_count);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->seglist = kmalloc(count * sizeof(*entry->seglist), GFP_KERNEL);
+ if (!entry->seglist) {
+ kfree(entry->buflist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->seglist, 0, count * sizeof(*entry->seglist));
+
+ /* Keep the original pagelist until we know all the allocations
+ * have succeeded
+ */
+ temp_pagelist = kmalloc((dma->page_count + (count << page_order)) *
+ sizeof(*dma->pagelist), GFP_KERNEL);
+ if (!temp_pagelist) {
+ kfree(entry->buflist);
+ kfree(entry->seglist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memcpy(temp_pagelist,
+ dma->pagelist, dma->page_count * sizeof(*dma->pagelist));
+ DRM_DEBUG("pagelist: %d entries\n",
+ dma->page_count + (count << page_order));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+ byte_count = 0;
+ page_count = 0;
+
+ while (entry->buf_count < count) {
+
+ dmah = drm_pci_alloc(dev, PAGE_SIZE << page_order, 0x1000, 0xfffffffful);
+
+ if (!dmah) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ entry->seglist[entry->seg_count++] = dmah;
+ for (i = 0; i < (1 << page_order); i++) {
+ DRM_DEBUG("page %d @ 0x%08lx\n",
+ dma->page_count + page_count,
+ (unsigned long)dmah->vaddr + PAGE_SIZE * i);
+ temp_pagelist[dma->page_count + page_count++]
+ = (unsigned long)dmah->vaddr + PAGE_SIZE * i;
+ }
+ for (offset = 0;
+ offset + size <= total && entry->buf_count < count;
+ offset += alignment, ++entry->buf_count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+ buf->offset = (dma->byte_count + byte_count + offset);
+ buf->address = (void *)(dmah->vaddr + offset);
+ buf->bus_address = dmah->busaddr + offset;
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size,
+ GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n",
+ entry->buf_count, buf->address);
+ }
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ /* No allocations failed, so now we can replace the orginal pagelist
+ * with the new one.
+ */
+ if (dma->page_count) {
+ kfree(dma->pagelist);
+ }
+ dma->pagelist = temp_pagelist;
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += entry->seg_count << page_order;
+ dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ if (request->flags & _DRM_PCI_BUFFER_RO)
+ dma->flags = _DRM_DMA_USE_PCI_RO;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+
+}
+EXPORT_SYMBOL(drm_addbufs_pci);
+
+static int drm_addbufs_sg(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset
+ + (unsigned long)dev->sg->virtual);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_SG;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+static int drm_addbufs_fb(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_FB_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_FB;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+
+/**
+ * Add buffers for DMA transfers (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_buf_desc request.
+ * \return zero on success or a negative number on failure.
+ *
+ * According with the memory type specified in drm_buf_desc::flags and the
+ * build options, it dispatches the call either to addbufs_agp(),
+ * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent
+ * PCI memory respectively.
+ */
+int drm_addbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_buf_desc *request = data;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+#if __OS_HAS_AGP
+ if (request->flags & _DRM_AGP_BUFFER)
+ ret = drm_addbufs_agp(dev, request);
+ else
+#endif
+ if (request->flags & _DRM_SG_BUFFER)
+ ret = drm_addbufs_sg(dev, request);
+ else if (request->flags & _DRM_FB_BUFFER)
+ ret = drm_addbufs_fb(dev, request);
+ else
+ ret = drm_addbufs_pci(dev, request);
+
+ return ret;
+}
+
+/**
+ * Get information about the buffer mappings.
+ *
+ * This was originally mean for debugging purposes, or by a sophisticated
+ * client library to determine how best to use the available buffers (e.g.,
+ * large buffers can be used for image transfer).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Increments drm_device::buf_use while holding the drm_device::count_lock
+ * lock, preventing of allocating more buffers after this call. Information
+ * about each requested buffer is then copied into user space.
+ */
+int drm_infobufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_info *request = data;
+ int i;
+ int count;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count)
+ ++count;
+ }
+
+ DRM_DEBUG("count = %d\n", count);
+
+ if (request->count >= count) {
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count) {
+ struct drm_buf_desc __user *to =
+ &request->list[count];
+ struct drm_buf_entry *from = &dma->bufs[i];
+ struct drm_freelist *list = &dma->bufs[i].freelist;
+ if (copy_to_user(&to->count,
+ &from->buf_count,
+ sizeof(from->buf_count)) ||
+ copy_to_user(&to->size,
+ &from->buf_size,
+ sizeof(from->buf_size)) ||
+ copy_to_user(&to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark)) ||
+ copy_to_user(&to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d %d %d %d %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].freelist.low_mark,
+ dma->bufs[i].freelist.high_mark);
+ ++count;
+ }
+ }
+ }
+ request->count = count;
+
+ return 0;
+}
+
+/**
+ * Specifies a low and high water mark for buffer allocation
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg a pointer to a drm_buf_desc structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies that the size order is bounded between the admissible orders and
+ * updates the respective drm_device_dma::bufs entry low and high water mark.
+ *
+ * \note This ioctl is deprecated and mostly never used.
+ */
+int drm_markbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_desc *request = data;
+ int order;
+ struct drm_buf_entry *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d, %d, %d\n",
+ request->size, request->low_mark, request->high_mark);
+ order = drm_order(request->size);
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ entry = &dma->bufs[order];
+
+ if (request->low_mark < 0 || request->low_mark > entry->buf_count)
+ return -EINVAL;
+ if (request->high_mark < 0 || request->high_mark > entry->buf_count)
+ return -EINVAL;
+
+ entry->freelist.low_mark = request->low_mark;
+ entry->freelist.high_mark = request->high_mark;
+
+ return 0;
+}
+
+/**
+ * Unreserve the buffers in list, previously reserved using drmDMA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_free structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls free_buffer() for each used buffer.
+ * This function is primarily used for debugging.
+ */
+int drm_freebufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_free *request = data;
+ int i;
+ int idx;
+ struct drm_buf *buf;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d\n", request->count);
+ for (i = 0; i < request->count; i++) {
+ if (copy_from_user(&idx, &request->list[i], sizeof(idx)))
+ return -EFAULT;
+ if (idx < 0 || idx >= dma->buf_count) {
+ DRM_ERROR("Index %d (of %d max)\n",
+ idx, dma->buf_count - 1);
+ return -EINVAL;
+ }
+ buf = dma->buflist[idx];
+ if (buf->file_priv != file_priv) {
+ DRM_ERROR("Process %d freeing buffer not owned\n",
+ task_pid_nr(current));
+ return -EINVAL;
+ }
+ drm_free_buffer(dev, buf);
+ }
+
+ return 0;
+}
+
+/**
+ * Maps all of the DMA buffers into client-virtual space (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information
+ * about each buffer into user space. For PCI buffers, it calls do_mmap() with
+ * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls
+ * drm_mmap_dma().
+ */
+int drm_mapbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ struct drm_buf_map *request = data;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ if (request->count >= dma->buf_count) {
+ if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP))
+ || (drm_core_check_feature(dev, DRIVER_SG)
+ && (dma->flags & _DRM_DMA_USE_SG))
+ || (drm_core_check_feature(dev, DRIVER_FB_DMA)
+ && (dma->flags & _DRM_DMA_USE_FB))) {
+ struct drm_local_map *map = dev->agp_buffer_map;
+ unsigned long token = dev->agp_buffer_token;
+
+ if (!map) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ token);
+ up_write(¤t->mm->mmap_sem);
+ } else {
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0);
+ up_write(¤t->mm->mmap_sem);
+ }
+ if (virtual > -1024UL) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request->virtual = (void __user *)virtual;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ if (copy_to_user(&request->list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request->list[0].idx))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request->list[0].total))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].used,
+ &zero, sizeof(zero))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if (copy_to_user(&request->list[i].address,
+ &address, sizeof(address))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ done:
+ request->count = dma->buf_count;
+ DRM_DEBUG("%d buffers, retcode = %d\n", request->count, retcode);
+
+ return retcode;
+}
+
+/**
+ * Compute size order. Returns the exponent of the smaller power of two which
+ * is greater or equal to given number.
+ *
+ * \param size size.
+ * \return order.
+ *
+ * \todo Can be made faster.
+ */
+int drm_order(unsigned long size)
+{
+ int order;
+ unsigned long tmp;
+
+ for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ;
+
+ if (size & (size - 1))
+ ++order;
+
+ return order;
+}
+EXPORT_SYMBOL(drm_order);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+
+#if defined(CONFIG_X86)
+static void
+drm_clflush_page(struct page *page)
+{
+ uint8_t *page_virtual;
+ unsigned int i;
+
+ if (unlikely(page == NULL))
+ return;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ clflush(page_virtual + i);
+ kunmap_atomic(page_virtual, KM_USER0);
+}
+
+static void drm_cache_flush_clflush(struct page *pages[],
+ unsigned long num_pages)
+{
+ unsigned long i;
+
+ mb();
+ for (i = 0; i < num_pages; i++)
+ drm_clflush_page(*pages++);
+ mb();
+}
+
+static void
+drm_clflush_ipi_handler(void *null)
+{
+ wbinvd();
+}
+#endif
+
+void
+drm_clflush_pages(struct page *pages[], unsigned long num_pages)
+{
+
+#if defined(CONFIG_X86)
+ if (cpu_has_clflush) {
+ drm_cache_flush_clflush(pages, num_pages);
+ return;
+ }
+
+ if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
+ printk(KERN_ERR "Timed out waiting for cache flush.\n");
+
+#elif defined(__powerpc__)
+ unsigned long i;
+ for (i = 0; i < num_pages; i++) {
+ struct page *page = pages[i];
+ void *page_virtual;
+
+ if (unlikely(page == NULL))
+ continue;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ flush_dcache_range((unsigned long)page_virtual,
+ (unsigned long)page_virtual + PAGE_SIZE);
+ kunmap_atomic(page_virtual, KM_USER0);
+ }
+#else
+ printk(KERN_ERR "Architecture has no drm_cache.c support\n");
+ WARN_ON_ONCE(1);
+#endif
+}
+EXPORT_SYMBOL(drm_clflush_pages);
--- /dev/null
+/**
+ * \file drm_context.c
+ * IOCTLs for generic contexts
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Nov 24 18:31:37 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * ChangeLog:
+ * 2001-11-16 Torsten Duwe <duwe@caldera.de>
+ * added context constructor/destructor hooks,
+ * needed by SiS driver's memory management.
+ */
+
+#include "drmP.h"
+
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
+/**
+ * Free a handle from the context bitmap.
+ *
+ * \param dev DRM device.
+ * \param ctx_handle context handle.
+ *
+ * Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry
+ * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
+ * lock.
+ */
+void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove(&dev->ctx_idr, ctx_handle);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Context bitmap allocation.
+ *
+ * \param dev DRM device.
+ * \return (non-negative) context handle on success or a negative number on failure.
+ *
+ * Allocate a new idr from drm_device::ctx_idr while holding the
+ * drm_device::struct_mutex lock.
+ */
+static int drm_ctxbitmap_next(struct drm_device * dev)
+{
+ int new_id;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->ctx_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&dev->ctx_idr, NULL,
+ DRM_RESERVED_CONTEXTS, &new_id);
+ if (ret == -EAGAIN) {
+ mutex_unlock(&dev->struct_mutex);
+ goto again;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return new_id;
+}
+
+/**
+ * Context bitmap initialization.
+ *
+ * \param dev DRM device.
+ *
+ * Initialise the drm_device::ctx_idr
+ */
+int drm_ctxbitmap_init(struct drm_device * dev)
+{
+ idr_init(&dev->ctx_idr);
+ return 0;
+}
+
+/**
+ * Context bitmap cleanup.
+ *
+ * \param dev DRM device.
+ *
+ * Free all idr members using drm_ctx_sarea_free helper function
+ * while holding the drm_device::struct_mutex lock.
+ */
+void drm_ctxbitmap_cleanup(struct drm_device * dev)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove_all(&dev->ctx_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name Per Context SAREA Support */
+/*@{*/
+
+/**
+ * Get per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Gets the map from drm_device::ctx_idr with the handle specified and
+ * returns its handle.
+ */
+int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map;
+ struct drm_map_list *_entry;
+
+ mutex_lock(&dev->struct_mutex);
+
+ map = idr_find(&dev->ctx_idr, request->ctx_id);
+ if (!map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->handle = NULL;
+ list_for_each_entry(_entry, &dev->maplist, head) {
+ if (_entry->map == map) {
+ request->handle =
+ (void *)(unsigned long)_entry->user_token;
+ break;
+ }
+ }
+ if (request->handle == NULL)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * Set per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the mapping specified in \p arg and update the entry in
+ * drm_device::ctx_idr with it.
+ */
+int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list = NULL;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map
+ && r_list->user_token == (unsigned long) request->handle)
+ goto found;
+ }
+ bad:
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+
+ found:
+ map = r_list->map;
+ if (!map)
+ goto bad;
+
+ if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id)))
+ goto bad;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name The actual DRM context handling routines */
+/*@{*/
+
+/**
+ * Switch context.
+ *
+ * \param dev DRM device.
+ * \param old old context handle.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to set drm_device::context_flag.
+ */
+static int drm_context_switch(struct drm_device * dev, int old, int new)
+{
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ return 0;
+}
+
+/**
+ * Complete context switch.
+ *
+ * \param dev DRM device.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Updates drm_device::last_context and drm_device::last_switch. Verifies the
+ * hardware lock is held, clears the drm_device::context_flag and wakes up
+ * drm_device::context_wait.
+ */
+static int drm_context_switch_complete(struct drm_device *dev,
+ struct drm_file *file_priv, int new)
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+ clear_bit(0, &dev->context_flag);
+ wake_up(&dev->context_wait);
+
+ return 0;
+}
+
+/**
+ * Reserve contexts.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_res structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_res *res = data;
+ struct drm_ctx ctx;
+ int i;
+
+ if (res->count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx)))
+ return -EFAULT;
+ }
+ }
+ res->count = DRM_RESERVED_CONTEXTS;
+
+ return 0;
+}
+
+/**
+ * Add context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Get a new handle for the context and copy to userspace.
+ */
+int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_list *ctx_entry;
+ struct drm_ctx *ctx = data;
+
+ ctx->handle = drm_ctxbitmap_next(dev);
+ if (ctx->handle == DRM_KERNEL_CONTEXT) {
+ /* Skip kernel's context and get a new one. */
+ ctx->handle = drm_ctxbitmap_next(dev);
+ }
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == -1) {
+ DRM_DEBUG("Not enough free contexts.\n");
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_ctor)
+ if (!dev->driver->context_ctor(dev, ctx->handle)) {
+ DRM_DEBUG("Running out of ctxs or memory.\n");
+ return -ENOMEM;
+ }
+ }
+
+ ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL);
+ if (!ctx_entry) {
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&ctx_entry->head);
+ ctx_entry->handle = ctx->handle;
+ ctx_entry->tag = file_priv;
+
+ mutex_lock(&dev->ctxlist_mutex);
+ list_add(&ctx_entry->head, &dev->ctxlist);
+ ++dev->ctx_count;
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ /* This does nothing */
+ return 0;
+}
+
+/**
+ * Get context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx->flags = 0;
+
+ return 0;
+}
+
+/**
+ * Switch context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch().
+ */
+int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ return drm_context_switch(dev, dev->last_context, ctx->handle);
+}
+
+/**
+ * New context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch_complete().
+ */
+int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ drm_context_switch_complete(dev, file_priv, ctx->handle);
+
+ return 0;
+}
+
+/**
+ * Remove context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * If not the special kernel context, calls ctxbitmap_free() to free the specified context.
+ */
+int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev, ctx->handle);
+ drm_ctxbitmap_free(dev, ctx->handle);
+ }
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->handle == ctx->handle) {
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+/*@}*/
--- /dev/null
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2008 Red Hat Inc.
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/list.h>
+#include "drm.h"
+#include "drmP.h"
+#include "drm_crtc.h"
+
+struct drm_prop_enum_list {
+ int type;
+ char *name;
+};
+
+/* Avoid boilerplate. I'm tired of typing. */
+#define DRM_ENUM_NAME_FN(fnname, list) \
+ char *fnname(int val) \
+ { \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(list); i++) { \
+ if (list[i].type == val) \
+ return list[i].name; \
+ } \
+ return "(unknown)"; \
+ }
+
+/*
+ * Global properties
+ */
+static struct drm_prop_enum_list drm_dpms_enum_list[] =
+{ { DRM_MODE_DPMS_ON, "On" },
+ { DRM_MODE_DPMS_STANDBY, "Standby" },
+ { DRM_MODE_DPMS_SUSPEND, "Suspend" },
+ { DRM_MODE_DPMS_OFF, "Off" }
+};
+
+DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
+
+/*
+ * Optional properties
+ */
+static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
+{
+ { DRM_MODE_SCALE_NONE, "None" },
+ { DRM_MODE_SCALE_FULLSCREEN, "Full" },
+ { DRM_MODE_SCALE_CENTER, "Center" },
+ { DRM_MODE_SCALE_ASPECT, "Full aspect" },
+};
+
+static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
+{
+ { DRM_MODE_DITHERING_OFF, "Off" },
+ { DRM_MODE_DITHERING_ON, "On" },
+};
+
+/*
+ * Non-global properties, but "required" for certain connectors.
+ */
+static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
+
+static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
+ drm_dvi_i_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_tv_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
+
+static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
+ drm_tv_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
+ { DRM_MODE_DIRTY_OFF, "Off" },
+ { DRM_MODE_DIRTY_ON, "On" },
+ { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
+};
+
+DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
+ drm_dirty_info_enum_list)
+
+struct drm_conn_prop_enum_list {
+ int type;
+ char *name;
+ int count;
+};
+
+/*
+ * Connector and encoder types.
+ */
+static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
+{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
+ { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
+ { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
+ { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
+ { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
+ { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
+ { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
+ { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
+ { DRM_MODE_CONNECTOR_Component, "Component", 0 },
+ { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
+ { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
+ { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
+ { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
+ { DRM_MODE_CONNECTOR_TV, "TV", 0 },
+};
+
+static struct drm_prop_enum_list drm_encoder_enum_list[] =
+{ { DRM_MODE_ENCODER_NONE, "None" },
+ { DRM_MODE_ENCODER_DAC, "DAC" },
+ { DRM_MODE_ENCODER_TMDS, "TMDS" },
+ { DRM_MODE_ENCODER_LVDS, "LVDS" },
+ { DRM_MODE_ENCODER_TVDAC, "TV" },
+};
+
+char *drm_get_encoder_name(struct drm_encoder *encoder)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_encoder_enum_list[encoder->encoder_type].name,
+ encoder->base.id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_encoder_name);
+
+char *drm_get_connector_name(struct drm_connector *connector)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_connector_enum_list[connector->connector_type].name,
+ connector->connector_type_id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_connector_name);
+
+char *drm_get_connector_status_name(enum drm_connector_status status)
+{
+ if (status == connector_status_connected)
+ return "connected";
+ else if (status == connector_status_disconnected)
+ return "disconnected";
+ else
+ return "unknown";
+}
+
+/**
+ * drm_mode_object_get - allocate a new identifier
+ * @dev: DRM device
+ * @ptr: object pointer, used to generate unique ID
+ * @type: object type
+ *
+ * LOCKING:
+ *
+ * Create a unique identifier based on @ptr in @dev's identifier space. Used
+ * for tracking modes, CRTCs and connectors.
+ *
+ * RETURNS:
+ * New unique (relative to other objects in @dev) integer identifier for the
+ * object.
+ */
+static int drm_mode_object_get(struct drm_device *dev,
+ struct drm_mode_object *obj, uint32_t obj_type)
+{
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Ran out memory getting a mode number\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+ if (ret == -EAGAIN)
+ goto again;
+
+ obj->id = new_id;
+ obj->type = obj_type;
+ return 0;
+}
+
+/**
+ * drm_mode_object_put - free an identifer
+ * @dev: DRM device
+ * @id: ID to free
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Free @id from @dev's unique identifier pool.
+ */
+static void drm_mode_object_put(struct drm_device *dev,
+ struct drm_mode_object *object)
+{
+ mutex_lock(&dev->mode_config.idr_mutex);
+ idr_remove(&dev->mode_config.crtc_idr, object->id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+}
+
+struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
+ uint32_t id, uint32_t type)
+{
+ struct drm_mode_object *obj = NULL;
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ obj = idr_find(&dev->mode_config.crtc_idr, id);
+ if (!obj || (obj->type != type) || (obj->id != id))
+ obj = NULL;
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_mode_object_find);
+
+/**
+ * drm_framebuffer_init - initialize a framebuffer
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Allocates an ID for the framebuffer's parent mode object, sets its mode
+ * functions & device file and adds it to the master fd list.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ int ret;
+
+ ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
+ if (ret) {
+ return ret;
+ }
+
+ fb->dev = dev;
+ fb->funcs = funcs;
+ dev->mode_config.num_fb++;
+ list_add(&fb->head, &dev->mode_config.fb_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_framebuffer_init);
+
+/**
+ * drm_framebuffer_cleanup - remove a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
+ * it, setting it to NULL.
+ */
+void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ struct drm_crtc *crtc;
+ struct drm_mode_set set;
+ int ret;
+
+ /* remove from any CRTC */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->fb == fb) {
+ /* should turn off the crtc */
+ memset(&set, 0, sizeof(struct drm_mode_set));
+ set.crtc = crtc;
+ set.fb = NULL;
+ ret = crtc->funcs->set_config(&set);
+ if (ret)
+ DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ }
+ }
+
+ drm_mode_object_put(dev, &fb->base);
+ list_del(&fb->head);
+ dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_crtc_init - Initialise a new CRTC object
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @funcs: callbacks for the new CRTC
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Inits a new object created as base part of an driver crtc object.
+ */
+void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+ const struct drm_crtc_funcs *funcs)
+{
+ crtc->dev = dev;
+ crtc->funcs = funcs;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
+
+ list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
+ dev->mode_config.num_crtc++;
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_crtc_init);
+
+/**
+ * drm_crtc_cleanup - Cleans up the core crtc usage.
+ * @crtc: CRTC to cleanup
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Cleanup @crtc. Removes from drm modesetting space
+ * does NOT free object, caller does that.
+ */
+void drm_crtc_cleanup(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+
+ if (crtc->gamma_store) {
+ kfree(crtc->gamma_store);
+ crtc->gamma_store = NULL;
+ }
+
+ drm_mode_object_put(dev, &crtc->base);
+ list_del(&crtc->head);
+ dev->mode_config.num_crtc--;
+}
+EXPORT_SYMBOL(drm_crtc_cleanup);
+
+/**
+ * drm_mode_probed_add - add a mode to a connector's probed mode list
+ * @connector: connector the new mode
+ * @mode: mode data
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Add @mode to @connector's mode list for later use.
+ */
+void drm_mode_probed_add(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_add(&mode->head, &connector->probed_modes);
+}
+EXPORT_SYMBOL(drm_mode_probed_add);
+
+/**
+ * drm_mode_remove - remove and free a mode
+ * @connector: connector list to modify
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Remove @mode from @connector's mode list, then free it.
+ */
+void drm_mode_remove(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_del(&mode->head);
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_remove);
+
+/**
+ * drm_connector_init - Init a preallocated connector
+ * @dev: DRM device
+ * @connector: the connector to init
+ * @funcs: callbacks for this connector
+ * @name: user visible name of the connector
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Initialises a preallocated connector. Connectors should be
+ * subclassed as part of driver connector objects.
+ */
+void drm_connector_init(struct drm_device *dev,
+ struct drm_connector *connector,
+ const struct drm_connector_funcs *funcs,
+ int connector_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ connector->dev = dev;
+ connector->funcs = funcs;
+ drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
+ connector->connector_type = connector_type;
+ connector->connector_type_id =
+ ++drm_connector_enum_list[connector_type].count; /* TODO */
+ INIT_LIST_HEAD(&connector->user_modes);
+ INIT_LIST_HEAD(&connector->probed_modes);
+ INIT_LIST_HEAD(&connector->modes);
+ connector->edid_blob_ptr = NULL;
+
+ list_add_tail(&connector->head, &dev->mode_config.connector_list);
+ dev->mode_config.num_connector++;
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.edid_property, 0);
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.dpms_property, 0);
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_init);
+
+/**
+ * drm_connector_cleanup - cleans up an initialised connector
+ * @connector: connector to cleanup
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Cleans up the connector but doesn't free the object.
+ */
+void drm_connector_cleanup(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->user_modes, head)
+ drm_mode_remove(connector, mode);
+
+ kfree(connector->fb_helper_private);
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &connector->base);
+ list_del(&connector->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_cleanup);
+
+void drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ encoder->dev = dev;
+
+ drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
+ encoder->encoder_type = encoder_type;
+ encoder->funcs = funcs;
+
+ list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
+ dev->mode_config.num_encoder++;
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_init);
+
+void drm_encoder_cleanup(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &encoder->base);
+ list_del(&encoder->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_cleanup);
+
+/**
+ * drm_mode_create - create a new display mode
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Create a new drm_display_mode, give it an ID, and return it.
+ *
+ * RETURNS:
+ * Pointer to new mode on success, NULL on error.
+ */
+struct drm_display_mode *drm_mode_create(struct drm_device *dev)
+{
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_create);
+
+/**
+ * drm_mode_destroy - remove a mode
+ * @dev: DRM device
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free @mode's unique identifier, then free it.
+ */
+void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ drm_mode_object_put(dev, &mode->base);
+
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_destroy);
+
+static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
+{
+ struct drm_property *edid;
+ struct drm_property *dpms;
+ int i;
+
+ /*
+ * Standard properties (apply to all connectors)
+ */
+ edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "EDID", 0);
+ dev->mode_config.edid_property = edid;
+
+ dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
+ drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
+ drm_dpms_enum_list[i].name);
+ dev->mode_config.dpms_property = dpms;
+
+ return 0;
+}
+
+/**
+ * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
+ * @dev: DRM device
+ *
+ * Called by a driver the first time a DVI-I connector is made.
+ */
+int drm_mode_create_dvi_i_properties(struct drm_device *dev)
+{
+ struct drm_property *dvi_i_selector;
+ struct drm_property *dvi_i_subconnector;
+ int i;
+
+ if (dev->mode_config.dvi_i_select_subconnector_property)
+ return 0;
+
+ dvi_i_selector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_dvi_i_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
+ drm_property_add_enum(dvi_i_selector, i,
+ drm_dvi_i_select_enum_list[i].type,
+ drm_dvi_i_select_enum_list[i].name);
+ dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
+
+ dvi_i_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "subconnector",
+ ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
+ drm_property_add_enum(dvi_i_subconnector, i,
+ drm_dvi_i_subconnector_enum_list[i].type,
+ drm_dvi_i_subconnector_enum_list[i].name);
+ dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
+
+/**
+ * drm_create_tv_properties - create TV specific connector properties
+ * @dev: DRM device
+ * @num_modes: number of different TV formats (modes) supported
+ * @modes: array of pointers to strings containing name of each format
+ *
+ * Called by a driver's TV initialization routine, this function creates
+ * the TV specific connector properties for a given device. Caller is
+ * responsible for allocating a list of format names and passing them to
+ * this routine.
+ */
+int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
+ char *modes[])
+{
+ struct drm_property *tv_selector;
+ struct drm_property *tv_subconnector;
+ int i;
+
+ if (dev->mode_config.tv_select_subconnector_property)
+ return 0;
+
+ /*
+ * Basic connector properties
+ */
+ tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_tv_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
+ drm_property_add_enum(tv_selector, i,
+ drm_tv_select_enum_list[i].type,
+ drm_tv_select_enum_list[i].name);
+ dev->mode_config.tv_select_subconnector_property = tv_selector;
+
+ tv_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE, "subconnector",
+ ARRAY_SIZE(drm_tv_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
+ drm_property_add_enum(tv_subconnector, i,
+ drm_tv_subconnector_enum_list[i].type,
+ drm_tv_subconnector_enum_list[i].name);
+ dev->mode_config.tv_subconnector_property = tv_subconnector;
+
+ /*
+ * Other, TV specific properties: margins & TV modes.
+ */
+ dev->mode_config.tv_left_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "left margin", 2);
+ dev->mode_config.tv_left_margin_property->values[0] = 0;
+ dev->mode_config.tv_left_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_right_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "right margin", 2);
+ dev->mode_config.tv_right_margin_property->values[0] = 0;
+ dev->mode_config.tv_right_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_top_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "top margin", 2);
+ dev->mode_config.tv_top_margin_property->values[0] = 0;
+ dev->mode_config.tv_top_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_bottom_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "bottom margin", 2);
+ dev->mode_config.tv_bottom_margin_property->values[0] = 0;
+ dev->mode_config.tv_bottom_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ for (i = 0; i < num_modes; i++)
+ drm_property_add_enum(dev->mode_config.tv_mode_property, i,
+ i, modes[i]);
+
+ dev->mode_config.tv_brightness_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "brightness", 2);
+ dev->mode_config.tv_brightness_property->values[0] = 0;
+ dev->mode_config.tv_brightness_property->values[1] = 100;
+
+ dev->mode_config.tv_contrast_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "contrast", 2);
+ dev->mode_config.tv_contrast_property->values[0] = 0;
+ dev->mode_config.tv_contrast_property->values[1] = 100;
+
+ dev->mode_config.tv_flicker_reduction_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "flicker reduction", 2);
+ dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
+ dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
+
+ dev->mode_config.tv_overscan_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "overscan", 2);
+ dev->mode_config.tv_overscan_property->values[0] = 0;
+ dev->mode_config.tv_overscan_property->values[1] = 100;
+
+ dev->mode_config.tv_saturation_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "saturation", 2);
+ dev->mode_config.tv_saturation_property->values[0] = 0;
+ dev->mode_config.tv_saturation_property->values[1] = 100;
+
+ dev->mode_config.tv_hue_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "hue", 2);
+ dev->mode_config.tv_hue_property->values[0] = 0;
+ dev->mode_config.tv_hue_property->values[1] = 100;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_tv_properties);
+
+/**
+ * drm_mode_create_scaling_mode_property - create scaling mode property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_scaling_mode_property(struct drm_device *dev)
+{
+ struct drm_property *scaling_mode;
+ int i;
+
+ if (dev->mode_config.scaling_mode_property)
+ return 0;
+
+ scaling_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
+ ARRAY_SIZE(drm_scaling_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
+ drm_property_add_enum(scaling_mode, i,
+ drm_scaling_mode_enum_list[i].type,
+ drm_scaling_mode_enum_list[i].name);
+
+ dev->mode_config.scaling_mode_property = scaling_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
+
+/**
+ * drm_mode_create_dithering_property - create dithering property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dithering_property(struct drm_device *dev)
+{
+ struct drm_property *dithering_mode;
+ int i;
+
+ if (dev->mode_config.dithering_mode_property)
+ return 0;
+
+ dithering_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
+ ARRAY_SIZE(drm_dithering_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
+ drm_property_add_enum(dithering_mode, i,
+ drm_dithering_mode_enum_list[i].type,
+ drm_dithering_mode_enum_list[i].name);
+ dev->mode_config.dithering_mode_property = dithering_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dithering_property);
+
+/**
+ * drm_mode_create_dirty_property - create dirty property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dirty_info_property(struct drm_device *dev)
+{
+ struct drm_property *dirty_info;
+ int i;
+
+ if (dev->mode_config.dirty_info_property)
+ return 0;
+
+ dirty_info =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "dirty",
+ ARRAY_SIZE(drm_dirty_info_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
+ drm_property_add_enum(dirty_info, i,
+ drm_dirty_info_enum_list[i].type,
+ drm_dirty_info_enum_list[i].name);
+ dev->mode_config.dirty_info_property = dirty_info;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
+
+/**
+ * drm_mode_config_init - initialize DRM mode_configuration structure
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * None, should happen single threaded at init time.
+ *
+ * Initialize @dev's mode_config structure, used for tracking the graphics
+ * configuration of @dev.
+ */
+void drm_mode_config_init(struct drm_device *dev)
+{
+ mutex_init(&dev->mode_config.mutex);
+ mutex_init(&dev->mode_config.idr_mutex);
+ INIT_LIST_HEAD(&dev->mode_config.fb_list);
+ INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
+ INIT_LIST_HEAD(&dev->mode_config.crtc_list);
+ INIT_LIST_HEAD(&dev->mode_config.connector_list);
+ INIT_LIST_HEAD(&dev->mode_config.encoder_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+ idr_init(&dev->mode_config.crtc_idr);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_create_standard_connector_properties(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ /* Just to be sure */
+ dev->mode_config.num_fb = 0;
+ dev->mode_config.num_connector = 0;
+ dev->mode_config.num_crtc = 0;
+ dev->mode_config.num_encoder = 0;
+}
+EXPORT_SYMBOL(drm_mode_config_init);
+
+int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
+{
+ uint32_t total_objects = 0;
+
+ total_objects += dev->mode_config.num_crtc;
+ total_objects += dev->mode_config.num_connector;
+ total_objects += dev->mode_config.num_encoder;
+
+ if (total_objects == 0)
+ return -EINVAL;
+
+ group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
+ if (!group->id_list)
+ return -ENOMEM;
+
+ group->num_crtcs = 0;
+ group->num_connectors = 0;
+ group->num_encoders = 0;
+ return 0;
+}
+
+int drm_mode_group_init_legacy_group(struct drm_device *dev,
+ struct drm_mode_group *group)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ if ((ret = drm_mode_group_init(dev, group)))
+ return ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ group->id_list[group->num_crtcs++] = crtc->base.id;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders++] =
+ encoder->base.id;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders +
+ group->num_connectors++] = connector->base.id;
+
+ return 0;
+}
+
+/**
+ * drm_mode_config_cleanup - free up DRM mode_config info
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free up all the connectors and CRTCs associated with this DRM device, then
+ * free up the framebuffers and associated buffer objects.
+ *
+ * FIXME: cleanup any dangling user buffer objects too
+ */
+void drm_mode_config_cleanup(struct drm_device *dev)
+{
+ struct drm_connector *connector, *ot;
+ struct drm_crtc *crtc, *ct;
+ struct drm_encoder *encoder, *enct;
+ struct drm_framebuffer *fb, *fbt;
+ struct drm_property *property, *pt;
+
+ list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
+ head) {
+ encoder->funcs->destroy(encoder);
+ }
+
+ list_for_each_entry_safe(connector, ot,
+ &dev->mode_config.connector_list, head) {
+ connector->funcs->destroy(connector);
+ }
+
+ list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
+ head) {
+ drm_property_destroy(dev, property);
+ }
+
+ list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+ fb->funcs->destroy(fb);
+ }
+
+ list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+ crtc->funcs->destroy(crtc);
+ }
+
+}
+EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+/**
+ * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
+ * @out: drm_mode_modeinfo struct to return to the user
+ * @in: drm_display_mode to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
+ * the user.
+ */
+void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
+ struct drm_display_mode *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
+ * @out: drm_display_mode to return to the user
+ * @in: drm_mode_modeinfo to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
+ * the caller.
+ */
+void drm_crtc_convert_umode(struct drm_display_mode *out,
+ struct drm_mode_modeinfo *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_mode_getresources - get graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getresources(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_card_res *card_res = data;
+ struct list_head *lh;
+ struct drm_framebuffer *fb;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ int ret = 0;
+ int connector_count = 0;
+ int crtc_count = 0;
+ int fb_count = 0;
+ int encoder_count = 0;
+ int copied = 0, i;
+ uint32_t __user *fb_id;
+ uint32_t __user *crtc_id;
+ uint32_t __user *connector_id;
+ uint32_t __user *encoder_id;
+ struct drm_mode_group *mode_group;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /*
+ * For the non-control nodes we need to limit the list of resources
+ * by IDs in the group list for this node
+ */
+ list_for_each(lh, &file_priv->fbs)
+ fb_count++;
+
+ mode_group = &file_priv->master->minor->mode_group;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+
+ list_for_each(lh, &dev->mode_config.crtc_list)
+ crtc_count++;
+
+ list_for_each(lh, &dev->mode_config.connector_list)
+ connector_count++;
+
+ list_for_each(lh, &dev->mode_config.encoder_list)
+ encoder_count++;
+ } else {
+
+ crtc_count = mode_group->num_crtcs;
+ connector_count = mode_group->num_connectors;
+ encoder_count = mode_group->num_encoders;
+ }
+
+ card_res->max_height = dev->mode_config.max_height;
+ card_res->min_height = dev->mode_config.min_height;
+ card_res->max_width = dev->mode_config.max_width;
+ card_res->min_width = dev->mode_config.min_width;
+
+ /* handle this in 4 parts */
+ /* FBs */
+ if (card_res->count_fbs >= fb_count) {
+ copied = 0;
+ fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+ list_for_each_entry(fb, &file_priv->fbs, head) {
+ if (put_user(fb->base.id, fb_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_fbs = fb_count;
+
+ /* CRTCs */
+ if (card_res->count_crtcs >= crtc_count) {
+ copied = 0;
+ crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+ head) {
+ DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
+ if (put_user(crtc->base.id, crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = 0; i < mode_group->num_crtcs; i++) {
+ if (put_user(mode_group->id_list[i],
+ crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_crtcs = crtc_count;
+
+ /* Encoders */
+ if (card_res->count_encoders >= encoder_count) {
+ copied = 0;
+ encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(encoder,
+ &dev->mode_config.encoder_list,
+ head) {
+ DRM_DEBUG_KMS("ENCODER ID is %d\n",
+ encoder->base.id);
+ if (put_user(encoder->base.id, encoder_id +
+ copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
+ if (put_user(mode_group->id_list[i],
+ encoder_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+
+ }
+ }
+ card_res->count_encoders = encoder_count;
+
+ /* Connectors */
+ if (card_res->count_connectors >= connector_count) {
+ copied = 0;
+ connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list,
+ head) {
+ DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
+ connector->base.id);
+ if (put_user(connector->base.id,
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ int start = mode_group->num_crtcs +
+ mode_group->num_encoders;
+ for (i = start; i < start + mode_group->num_connectors; i++) {
+ if (put_user(mode_group->id_list[i],
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_connectors = connector_count;
+
+ DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
+ card_res->count_connectors, card_res->count_encoders);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getcrtc - get CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a CRTC configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getcrtc(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc *crtc_resp = data;
+ struct drm_crtc *crtc;
+ struct drm_mode_object *obj;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ crtc_resp->x = crtc->x;
+ crtc_resp->y = crtc->y;
+ crtc_resp->gamma_size = crtc->gamma_size;
+ if (crtc->fb)
+ crtc_resp->fb_id = crtc->fb->base.id;
+ else
+ crtc_resp->fb_id = 0;
+
+ if (crtc->enabled) {
+
+ drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ crtc_resp->mode_valid = 1;
+
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getconnector - get connector configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a connector configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getconnector(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_connector *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ int mode_count = 0;
+ int props_count = 0;
+ int encoders_count = 0;
+ int ret = 0;
+ int copied = 0;
+ int i;
+ struct drm_mode_modeinfo u_mode;
+ struct drm_mode_modeinfo __user *mode_ptr;
+ uint32_t __user *prop_ptr;
+ uint64_t __user *prop_values;
+ uint32_t __user *encoder_ptr;
+
+ memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
+
+ DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ props_count++;
+ }
+ }
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ encoders_count++;
+ }
+ }
+
+ if (out_resp->count_modes == 0) {
+ connector->funcs->fill_modes(connector,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ }
+
+ /* delayed so we get modes regardless of pre-fill_modes state */
+ list_for_each_entry(mode, &connector->modes, head)
+ mode_count++;
+
+ out_resp->connector_id = connector->base.id;
+ out_resp->connector_type = connector->connector_type;
+ out_resp->connector_type_id = connector->connector_type_id;
+ out_resp->mm_width = connector->display_info.width_mm;
+ out_resp->mm_height = connector->display_info.height_mm;
+ out_resp->subpixel = connector->display_info.subpixel_order;
+ out_resp->connection = connector->status;
+ if (connector->encoder)
+ out_resp->encoder_id = connector->encoder->base.id;
+ else
+ out_resp->encoder_id = 0;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if ((out_resp->count_modes >= mode_count) && mode_count) {
+ copied = 0;
+ mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
+ list_for_each_entry(mode, &connector->modes, head) {
+ drm_crtc_convert_to_umode(&u_mode, mode);
+ if (copy_to_user(mode_ptr + copied,
+ &u_mode, sizeof(u_mode))) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_modes = mode_count;
+
+ if ((out_resp->count_props >= props_count) && props_count) {
+ copied = 0;
+ prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
+ prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ if (put_user(connector->property_ids[i],
+ prop_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (put_user(connector->property_values[i],
+ prop_values + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_props = props_count;
+
+ if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
+ copied = 0;
+ encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ if (put_user(connector->encoder_ids[i],
+ encoder_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_encoders = encoders_count;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_getencoder(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_encoder *enc_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, enc_resp->encoder_id,
+ DRM_MODE_OBJECT_ENCODER);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ encoder = obj_to_encoder(obj);
+
+ if (encoder->crtc)
+ enc_resp->crtc_id = encoder->crtc->base.id;
+ else
+ enc_resp->crtc_id = 0;
+ enc_resp->encoder_type = encoder->encoder_type;
+ enc_resp->encoder_id = encoder->base.id;
+ enc_resp->possible_crtcs = encoder->possible_crtcs;
+ enc_resp->possible_clones = encoder->possible_clones;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_setcrtc - set CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Build a new CRTC configuration based on user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_setcrtc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_mode_crtc *crtc_req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc, *crtcfb;
+ struct drm_connector **connector_set = NULL, *connector;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct drm_mode_set set;
+ uint32_t __user *set_connectors_ptr;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (crtc_req->mode_valid) {
+ /* If we have a mode we need a framebuffer. */
+ /* If we pass -1, set the mode with the currently bound fb */
+ if (crtc_req->fb_id == -1) {
+ list_for_each_entry(crtcfb,
+ &dev->mode_config.crtc_list, head) {
+ if (crtcfb == crtc) {
+ DRM_DEBUG_KMS("Using current fb for "
+ "setmode\n");
+ fb = crtc->fb;
+ }
+ }
+ } else {
+ obj = drm_mode_object_find(dev, crtc_req->fb_id,
+ DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown FB ID%d\n",
+ crtc_req->fb_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+ }
+
+ mode = drm_mode_create(dev);
+ drm_crtc_convert_umode(mode, &crtc_req->mode);
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ }
+
+ if (crtc_req->count_connectors == 0 && mode) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
+ DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
+ crtc_req->count_connectors);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0) {
+ u32 out_id;
+
+ /* Avoid unbounded kernel memory allocation */
+ if (crtc_req->count_connectors > config->num_connector) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ connector_set = kmalloc(crtc_req->count_connectors *
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
+ if (get_user(out_id, &set_connectors_ptr[i])) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ DRM_DEBUG_KMS("Connector id %d unknown\n",
+ out_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ connector_set[i] = connector;
+ }
+ }
+
+ set.crtc = crtc;
+ set.x = crtc_req->x;
+ set.y = crtc_req->y;
+ set.mode = mode;
+ set.connectors = connector_set;
+ set.num_connectors = crtc_req->count_connectors;
+ set.fb = fb;
+ ret = crtc->funcs->set_config(&set);
+
+out:
+ kfree(connector_set);
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_cursor_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_cursor *req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ int ret = 0;
+
+ if (!req->flags) {
+ DRM_ERROR("no operation set\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (req->flags & DRM_MODE_CURSOR_BO) {
+ if (!crtc->funcs->cursor_set) {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -ENXIO;
+ goto out;
+ }
+ /* Turns off the cursor if handle is 0 */
+ ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
+ req->width, req->height);
+ }
+
+ if (req->flags & DRM_MODE_CURSOR_MOVE) {
+ if (crtc->funcs->cursor_move) {
+ ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
+ } else {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_addfb - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ if ((config->min_width > r->width) || (r->width > config->max_width)) {
+ DRM_ERROR("mode new framebuffer width not within limits\n");
+ return -EINVAL;
+ }
+ if ((config->min_height > r->height) || (r->height > config->max_height)) {
+ DRM_ERROR("mode new framebuffer height not within limits\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /* TODO check buffer is sufficently large */
+ /* TODO setup destructor callback */
+
+ fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
+ if (!fb) {
+ DRM_ERROR("could not create framebuffer\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ r->fb_id = fb->base.id;
+ list_add(&fb->filp_head, &file_priv->fbs);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_rmfb - remove an FB from the configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Remove the FB specified by the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_rmfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_framebuffer *fbl = NULL;
+ uint32_t *id = data;
+ int ret = 0;
+ int found = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
+ /* TODO check that we realy get a framebuffer back. */
+ if (!obj) {
+ DRM_ERROR("mode invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ list_for_each_entry(fbl, &file_priv->fbs, filp_head)
+ if (fb == fbl)
+ found = 1;
+
+ if (!found) {
+ DRM_ERROR("tried to remove a fb that we didn't own\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* TODO release all crtc connected to the framebuffer */
+ /* TODO unhock the destructor from the buffer object */
+
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getfb - get FB info
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Lookup the FB given its ID and return info about it.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ r->height = fb->height;
+ r->width = fb->width;
+ r->depth = fb->depth;
+ r->bpp = fb->bits_per_pixel;
+ r->pitch = fb->pitch;
+ fb->funcs->create_handle(fb, file_priv, &r->handle);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_clip_rect __user *clips_ptr;
+ struct drm_clip_rect *clips = NULL;
+ struct drm_mode_fb_dirty_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ unsigned flags;
+ int num_clips;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out_err1;
+ }
+ fb = obj_to_fb(obj);
+
+ num_clips = r->num_clips;
+ clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
+
+ if (!num_clips != !clips_ptr) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
+
+ /* If userspace annotates copy, clips must come in pairs */
+ if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ if (num_clips && clips_ptr) {
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (!clips) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = copy_from_user(clips, clips_ptr,
+ num_clips * sizeof(*clips));
+ if (ret)
+ goto out_err2;
+ }
+
+ if (fb->funcs->dirty) {
+ ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
+ } else {
+ ret = -ENOSYS;
+ goto out_err2;
+ }
+
+out_err2:
+ kfree(clips);
+out_err1:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_release - remove and free the FBs on this file
+ * @filp: file * from the ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Destroy all the FBs associated with @filp.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+void drm_fb_release(struct drm_file *priv)
+{
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_framebuffer *fb, *tfb;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+/**
+ * drm_mode_attachmode - add a mode to the user mode list
+ * @dev: DRM device
+ * @connector: connector to add the mode to
+ * @mode: mode to add
+ *
+ * Add @mode to @connector's user mode list.
+ */
+static int drm_mode_attachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int ret = 0;
+
+ list_add_tail(&mode->head, &connector->user_modes);
+ return ret;
+}
+
+int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
+ struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+ int ret = 0;
+ struct drm_display_mode *dup_mode;
+ int need_dup = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ break;
+ if (connector->encoder->crtc == crtc) {
+ if (need_dup)
+ dup_mode = drm_mode_duplicate(dev, mode);
+ else
+ dup_mode = mode;
+ ret = drm_mode_attachmode(dev, connector, dup_mode);
+ if (ret)
+ return ret;
+ need_dup = 1;
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_attachmode_crtc);
+
+static int drm_mode_detachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int found = 0;
+ int ret = 0;
+ struct drm_display_mode *match_mode, *t;
+
+ list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
+ if (drm_mode_equal(match_mode, mode)) {
+ list_del(&match_mode->head);
+ drm_mode_destroy(dev, match_mode);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ret = -EINVAL;
+
+ return ret;
+}
+
+int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_mode_detachmode(dev, connector, mode);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_detachmode_crtc);
+
+/**
+ * drm_fb_attachmode - Attach a user mode to an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * This attaches a user specified mode to an connector.
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_attachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ struct drm_mode_object *obj;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ drm_crtc_convert_umode(mode, umode);
+
+ ret = drm_mode_attachmode(dev, connector, mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_detachmode - Detach a user specified mode from an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_detachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode mode;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ drm_crtc_convert_umode(&mode, umode);
+ ret = drm_mode_detachmode(dev, connector, &mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+struct drm_property *drm_property_create(struct drm_device *dev, int flags,
+ const char *name, int num_values)
+{
+ struct drm_property *property = NULL;
+
+ property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
+ if (!property)
+ return NULL;
+
+ if (num_values) {
+ property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
+ if (!property->values)
+ goto fail;
+ }
+
+ drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
+ property->flags = flags;
+ property->num_values = num_values;
+ INIT_LIST_HEAD(&property->enum_blob_list);
+
+ if (name)
+ strncpy(property->name, name, DRM_PROP_NAME_LEN);
+
+ list_add_tail(&property->head, &dev->mode_config.property_list);
+ return property;
+fail:
+ kfree(property);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_property_create);
+
+int drm_property_add_enum(struct drm_property *property, int index,
+ uint64_t value, const char *name)
+{
+ struct drm_property_enum *prop_enum;
+
+ if (!(property->flags & DRM_MODE_PROP_ENUM))
+ return -EINVAL;
+
+ if (!list_empty(&property->enum_blob_list)) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+ if (prop_enum->value == value) {
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ return 0;
+ }
+ }
+ }
+
+ prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
+ if (!prop_enum)
+ return -ENOMEM;
+
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ prop_enum->value = value;
+
+ property->values[index] = value;
+ list_add_tail(&prop_enum->head, &property->enum_blob_list);
+ return 0;
+}
+EXPORT_SYMBOL(drm_property_add_enum);
+
+void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
+{
+ struct drm_property_enum *prop_enum, *pt;
+
+ list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
+ list_del(&prop_enum->head);
+ kfree(prop_enum);
+ }
+
+ if (property->num_values)
+ kfree(property->values);
+ drm_mode_object_put(dev, &property->base);
+ list_del(&property->head);
+ kfree(property);
+}
+EXPORT_SYMBOL(drm_property_destroy);
+
+int drm_connector_attach_property(struct drm_connector *connector,
+ struct drm_property *property, uint64_t init_val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == 0) {
+ connector->property_ids[i] = property->base.id;
+ connector->property_values[i] = init_val;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_property);
+
+int drm_connector_property_set_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t value)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ connector->property_values[i] = value;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_set_value);
+
+int drm_connector_property_get_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t *val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ *val = connector->property_values[i];
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_get_value);
+
+int drm_mode_getproperty_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_property *out_resp = data;
+ struct drm_property *property;
+ int enum_count = 0;
+ int blob_count = 0;
+ int value_count = 0;
+ int ret = 0, i;
+ int copied;
+ struct drm_property_enum *prop_enum;
+ struct drm_mode_property_enum __user *enum_ptr;
+ struct drm_property_blob *prop_blob;
+ uint32_t *blob_id_ptr;
+ uint64_t __user *values_ptr;
+ uint32_t __user *blob_length_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head)
+ enum_count++;
+ } else if (property->flags & DRM_MODE_PROP_BLOB) {
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head)
+ blob_count++;
+ }
+
+ value_count = property->num_values;
+
+ strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
+ out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
+ out_resp->flags = property->flags;
+
+ if ((out_resp->count_values >= value_count) && value_count) {
+ values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
+ for (i = 0; i < value_count; i++) {
+ if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ out_resp->count_values = value_count;
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
+ copied = 0;
+ enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+
+ if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (copy_to_user(&enum_ptr[copied].name,
+ &prop_enum->name, DRM_PROP_NAME_LEN)) {
+ ret = -EFAULT;
+ goto done;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = enum_count;
+ }
+
+ if (property->flags & DRM_MODE_PROP_BLOB) {
+ if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
+ copied = 0;
+ blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
+ blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
+
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
+ if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (put_user(prop_blob->length, blob_length_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = blob_count;
+ }
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
+ void *data)
+{
+ struct drm_property_blob *blob;
+
+ if (!length || !data)
+ return NULL;
+
+ blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
+ if (!blob)
+ return NULL;
+
+ blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
+ blob->length = length;
+
+ memcpy(blob->data, data, length);
+
+ drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
+
+ list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
+ return blob;
+}
+
+static void drm_property_destroy_blob(struct drm_device *dev,
+ struct drm_property_blob *blob)
+{
+ drm_mode_object_put(dev, &blob->base);
+ list_del(&blob->head);
+ kfree(blob);
+}
+
+int drm_mode_getblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_blob *out_resp = data;
+ struct drm_property_blob *blob;
+ int ret = 0;
+ void *blob_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ blob = obj_to_blob(obj);
+
+ if (out_resp->length == blob->length) {
+ blob_ptr = (void *)(unsigned long)out_resp->data;
+ if (copy_to_user(blob_ptr, blob->data, blob->length)){
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ out_resp->length = blob->length;
+
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_update_edid_property(struct drm_connector *connector,
+ struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int ret = 0;
+
+ if (connector->edid_blob_ptr)
+ drm_property_destroy_blob(dev, connector->edid_blob_ptr);
+
+ /* Delete edid, when there is none. */
+ if (!edid) {
+ connector->edid_blob_ptr = NULL;
+ ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
+ return ret;
+ }
+
+ connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
+
+ ret = drm_connector_property_set_value(connector,
+ dev->mode_config.edid_property,
+ connector->edid_blob_ptr->base.id);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
+
+int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_connector_set_property *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_property *property;
+ struct drm_connector *connector;
+ int ret = -EINVAL;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == out_resp->prop_id)
+ break;
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY) {
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ goto out;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_IMMUTABLE)
+ goto out;
+
+ if (property->flags & DRM_MODE_PROP_RANGE) {
+ if (out_resp->value < property->values[0])
+ goto out;
+
+ if (out_resp->value > property->values[1])
+ goto out;
+ } else {
+ int found = 0;
+ for (i = 0; i < property->num_values; i++) {
+ if (property->values[i] == out_resp->value) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ goto out;
+ }
+ }
+
+ /* Do DPMS ourselves */
+ if (property == connector->dev->mode_config.dpms_property) {
+ if (connector->funcs->dpms)
+ (*connector->funcs->dpms)(connector, (int) out_resp->value);
+ ret = 0;
+ } else if (connector->funcs->set_property)
+ ret = connector->funcs->set_property(connector, property, out_resp->value);
+
+ /* store the property value if successful */
+ if (!ret)
+ drm_connector_property_set_value(connector, property, out_resp->value);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_attach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0) {
+ connector->encoder_ids[i] = encoder->base.id;
+ return 0;
+ }
+ }
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
+
+void drm_mode_connector_detach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == encoder->base.id) {
+ connector->encoder_ids[i] = 0;
+ if (connector->encoder == encoder)
+ connector->encoder = NULL;
+ break;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
+
+bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size)
+{
+ crtc->gamma_size = gamma_size;
+
+ crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
+ if (!crtc->gamma_store) {
+ crtc->gamma_size = 0;
+ return false;
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+
+int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+
+}
+
+int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_page_flip_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+ struct drm_pending_vblank_event *e = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
+ page_flip->reserved != 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj)
+ goto out;
+ crtc = obj_to_crtc(obj);
+
+ if (crtc->funcs->page_flip == NULL)
+ goto out;
+
+ obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj)
+ goto out;
+ fb = obj_to_fb(obj);
+
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ ret = -ENOMEM;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+ file_priv->event_space -= sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+
+ e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = page_flip->user_data;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy =
+ (void (*) (struct drm_pending_event *)) kfree;
+ }
+
+ ret = crtc->funcs->page_flip(crtc, fb, e);
+ if (ret) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
--- /dev/null
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+ {"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node *node = inode->i_private;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct dentry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+ root, tmp, &drm_debugfs_fops);
+ if (!ent) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
+ name, files[i].name);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ tmp->minor = minor;
+ tmp->dent = ent;
+ tmp->info_ent = &files[i];
+ list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+ }
+ return 0;
+
+fail:
+ drm_debugfs_remove_files(files, count, minor);
+ return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
+ * "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
+ * "/sys/kernel/debug/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->debugfs_root = debugfs_create_dir(name, root);
+ if (!minor->debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+ if (ret) {
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+ DRM_ERROR("Failed to create core drm debugfs files\n");
+ return ret;
+ }
+
+ if (dev->driver->debugfs_init) {
+ ret = dev->driver->debugfs_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/sys/kernel/debug/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ debugfs_remove(tmp->dent);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+
+ if (!minor->debugfs_root)
+ return 0;
+
+ if (dev->driver->debugfs_cleanup)
+ dev->driver->debugfs_cleanup(minor);
+
+ drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+
+ return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
--- /dev/null
+/**
+ * \file drm_dma.c
+ * DMA IOCTL and function support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Initialize the DMA data.
+ *
+ * \param dev DRM device.
+ * \return zero on success or a negative value on failure.
+ *
+ * Allocate and initialize a drm_device_dma structure.
+ */
+int drm_dma_setup(struct drm_device *dev)
+{
+ int i;
+
+ dev->dma = kmalloc(sizeof(*dev->dma), GFP_KERNEL);
+ if (!dev->dma)
+ return -ENOMEM;
+
+ memset(dev->dma, 0, sizeof(*dev->dma));
+
+ for (i = 0; i <= DRM_MAX_ORDER; i++)
+ memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
+
+ return 0;
+}
+
+/**
+ * Cleanup the DMA resources.
+ *
+ * \param dev DRM device.
+ *
+ * Free all pages associated with DMA buffers, the buffers and pages lists, and
+ * finally the drm_device::dma structure itself.
+ */
+void drm_dma_takedown(struct drm_device *dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i, j;
+
+ if (!dma)
+ return;
+
+ /* Clear dma buffers */
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].seg_count) {
+ DRM_DEBUG("order %d: buf_count = %d,"
+ " seg_count = %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].seg_count);
+ for (j = 0; j < dma->bufs[i].seg_count; j++) {
+ if (dma->bufs[i].seglist[j]) {
+ drm_pci_free(dev, dma->bufs[i].seglist[j]);
+ }
+ }
+ kfree(dma->bufs[i].seglist);
+ }
+ if (dma->bufs[i].buf_count) {
+ for (j = 0; j < dma->bufs[i].buf_count; j++) {
+ kfree(dma->bufs[i].buflist[j].dev_private);
+ }
+ kfree(dma->bufs[i].buflist);
+ }
+ }
+
+ kfree(dma->buflist);
+ kfree(dma->pagelist);
+ kfree(dev->dma);
+ dev->dma = NULL;
+}
+
+/**
+ * Free a buffer.
+ *
+ * \param dev DRM device.
+ * \param buf buffer to free.
+ *
+ * Resets the fields of \p buf.
+ */
+void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
+{
+ if (!buf)
+ return;
+
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+ buf->used = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)
+ && waitqueue_active(&buf->dma_wait)) {
+ wake_up_interruptible(&buf->dma_wait);
+ }
+}
+
+/**
+ * Reclaim the buffers.
+ *
+ * \param file_priv DRM file private.
+ *
+ * Frees each buffer associated with \p file_priv not already on the hardware.
+ */
+void drm_core_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ if (!dma)
+ return;
+ for (i = 0; i < dma->buf_count; i++) {
+ if (dma->buflist[i]->file_priv == file_priv) {
+ switch (dma->buflist[i]->list) {
+ case DRM_LIST_NONE:
+ drm_free_buffer(dev, dma->buflist[i]);
+ break;
+ case DRM_LIST_WAIT:
+ dma->buflist[i]->list = DRM_LIST_RECLAIM;
+ break;
+ default:
+ /* Buffer already on hardware. */
+ break;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_core_reclaim_buffers);
--- /dev/null
+/**
+ * \file drm_drawable.c
+ * IOCTLs for drawables
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ * \author Michel Dänzer <michel@tungstengraphics.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, North Dakota.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Allocate drawable ID and memory to store information about it.
+ */
+int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ unsigned long irqflags;
+ struct drm_draw *draw = data;
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->drw_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+ ret = idr_get_new_above(&dev->drw_idr, NULL, 1, &new_id);
+ if (ret == -EAGAIN) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ goto again;
+ }
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ draw->handle = new_id;
+
+ DRM_DEBUG("%d\n", draw->handle);
+
+ return 0;
+}
+
+/**
+ * Free drawable ID and memory to store information about it.
+ */
+int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_draw *draw = data;
+ unsigned long irqflags;
+ struct drm_drawable_info *info;
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ info = drm_get_drawable_info(dev, draw->handle);
+ if (info == NULL) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ return -EINVAL;
+ }
+ kfree(info->rects);
+ kfree(info);
+
+ idr_remove(&dev->drw_idr, draw->handle);
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ DRM_DEBUG("%d\n", draw->handle);
+ return 0;
+}
+
+int drm_update_drawable_info(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_update_draw *update = data;
+ unsigned long irqflags;
+ struct drm_clip_rect *rects;
+ struct drm_drawable_info *info;
+ int err;
+
+ info = idr_find(&dev->drw_idr, update->handle);
+ if (!info) {
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ if (IS_ERR(idr_replace(&dev->drw_idr, info, update->handle))) {
+ DRM_ERROR("No such drawable %d\n", update->handle);
+ kfree(info);
+ return -EINVAL;
+ }
+ }
+
+ switch (update->type) {
+ case DRM_DRAWABLE_CLIPRECTS:
+ if (update->num == 0)
+ rects = NULL;
+ else if (update->num != info->num_rects) {
+ rects = kmalloc(update->num *
+ sizeof(struct drm_clip_rect),
+ GFP_KERNEL);
+ } else
+ rects = info->rects;
+
+ if (update->num && !rects) {
+ DRM_ERROR("Failed to allocate cliprect memory\n");
+ err = -ENOMEM;
+ goto error;
+ }
+
+ if (update->num && DRM_COPY_FROM_USER(rects,
+ (struct drm_clip_rect __user *)
+ (unsigned long)update->data,
+ update->num *
+ sizeof(*rects))) {
+ DRM_ERROR("Failed to copy cliprects from userspace\n");
+ err = -EFAULT;
+ goto error;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ if (rects != info->rects) {
+ kfree(info->rects);
+ }
+
+ info->rects = rects;
+ info->num_rects = update->num;
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ DRM_DEBUG("Updated %d cliprects for drawable %d\n",
+ info->num_rects, update->handle);
+ break;
+ default:
+ DRM_ERROR("Invalid update type %d\n", update->type);
+ return -EINVAL;
+ }
+
+ return 0;
+
+error:
+ if (rects != info->rects)
+ kfree(rects);
+
+ return err;
+}
+
+/**
+ * Caller must hold the drawable spinlock!
+ */
+struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id)
+{
+ return idr_find(&dev->drw_idr, id);
+}
+EXPORT_SYMBOL(drm_get_drawable_info);
+
+static int drm_drawable_free(int idr, void *p, void *data)
+{
+ struct drm_drawable_info *info = p;
+
+ if (info) {
+ kfree(info->rects);
+ kfree(info);
+ }
+
+ return 0;
+}
+
+void drm_drawable_free_all(struct drm_device *dev)
+{
+ idr_for_each(&dev->drw_idr, drm_drawable_free, NULL);
+ idr_remove_all(&dev->drw_idr);
+}
--- /dev/null
+/**
+ * \file drm_drv.c
+ * Generic driver template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * \code
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define drm_x mga_##x
+ * \endcode
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/** Ioctl table */
+static struct drm_ioctl_desc drm_ioctls[] = {
+ DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+ DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+#if __OS_HAS_AGP
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+#endif
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW)
+};
+
+#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
+
+/**
+ * Take down the DRM device.
+ *
+ * \param dev DRM device structure.
+ *
+ * Frees every resource in \p dev.
+ *
+ * \sa drm_device
+ */
+int drm_lastclose(struct drm_device * dev)
+{
+ struct drm_vma_entry *vma, *vma_temp;
+ int i;
+
+ DRM_DEBUG("\n");
+
+ if (dev->driver->lastclose)
+ dev->driver->lastclose(dev);
+ DRM_DEBUG("driver lastclose completed\n");
+
+ if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_irq_uninstall(dev);
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Free drawable information memory */
+ drm_drawable_free_all(dev);
+ del_timer(&dev->timer);
+
+ /* Clear AGP information */
+ if (drm_core_has_AGP(dev) && dev->agp &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ struct drm_agp_mem *entry, *tempe;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ }
+ INIT_LIST_HEAD(&dev->agp->memory);
+
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+ if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ drm_sg_cleanup(dev->sg);
+ dev->sg = NULL;
+ }
+
+ /* Clear vma list (only built for debugging) */
+ list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
+ list_del(&vma->head);
+ kfree(vma);
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
+ for (i = 0; i < dev->queue_count; i++) {
+ kfree(dev->queuelist[i]);
+ dev->queuelist[i] = NULL;
+ }
+ kfree(dev->queuelist);
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_dma_takedown(dev);
+
+ dev->dev_mapping = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("lastclose completed\n");
+ return 0;
+}
+
+/**
+ * Module initialization. Called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes an array of drm_device structures, and attempts to
+ * initialize all available devices, using consecutive minors, registering the
+ * stubs and initializing the AGP device.
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+int drm_init(struct drm_driver *driver)
+{
+ struct pci_dev *pdev = NULL;
+ const struct pci_device_id *pid;
+ int i;
+
+ DRM_DEBUG("\n");
+
+ INIT_LIST_HEAD(&driver->device_list);
+
+ if (driver->driver_features & DRIVER_MODESET)
+ return pci_register_driver(&driver->pci_driver);
+
+ /* If not using KMS, fall back to stealth mode manual scanning. */
+ for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
+ pid = &driver->pci_driver.id_table[i];
+
+ /* Loop around setting up a DRM device for each PCI device
+ * matching our ID and device class. If we had the internal
+ * function that pci_get_subsys and pci_get_class used, we'd
+ * be able to just pass pid in instead of doing a two-stage
+ * thing.
+ */
+ pdev = NULL;
+ while ((pdev =
+ pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
+ pid->subdevice, pdev)) != NULL) {
+ if ((pdev->class & pid->class_mask) != pid->class)
+ continue;
+
+ /* stealth mode requires a manual probe */
+ pci_dev_get(pdev);
+ drm_get_dev(pdev, pid, driver);
+ }
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_init);
+
+void drm_exit(struct drm_driver *driver)
+{
+ struct drm_device *dev, *tmp;
+ DRM_DEBUG("\n");
+
+ if (driver->driver_features & DRIVER_MODESET) {
+ pci_unregister_driver(&driver->pci_driver);
+ } else {
+ list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
+ drm_put_dev(dev);
+ }
+
+ DRM_INFO("Module unloaded\n");
+}
+
+EXPORT_SYMBOL(drm_exit);
+
+/** File operations structure */
+static const struct file_operations drm_stub_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_stub_open
+};
+
+static int __init drm_core_init(void)
+{
+ int ret = -ENOMEM;
+
+ idr_init(&drm_minors_idr);
+
+ if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
+ goto err_p1;
+
+ drm_class = drm_sysfs_create(THIS_MODULE, "drm");
+ if (IS_ERR(drm_class)) {
+ printk(KERN_ERR "DRM: Error creating drm class.\n");
+ ret = PTR_ERR(drm_class);
+ goto err_p2;
+ }
+
+ drm_proc_root = proc_mkdir("dri", NULL);
+ if (!drm_proc_root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ drm_debugfs_root = debugfs_create_dir("dri", NULL);
+ if (!drm_debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ DRM_INFO("Initialized %s %d.%d.%d %s\n",
+ CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+ return 0;
+err_p3:
+ drm_sysfs_destroy();
+err_p2:
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+err_p1:
+ return ret;
+}
+
+static void __exit drm_core_exit(void)
+{
+ remove_proc_entry("dri", NULL);
+ debugfs_remove(drm_debugfs_root);
+ drm_sysfs_destroy();
+
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+}
+
+module_init(drm_core_init);
+module_exit(drm_core_exit);
+
+/**
+ * Copy and IOCTL return string to user space
+ */
+static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+{
+ int len;
+
+ /* don't overflow userbuf */
+ len = strlen(value);
+ if (len > *buf_len)
+ len = *buf_len;
+
+ /* let userspace know exact length of driver value (which could be
+ * larger than the userspace-supplied buffer) */
+ *buf_len = strlen(value);
+
+ /* finally, try filling in the userbuf */
+ if (len && buf)
+ if (copy_to_user(buf, value, len))
+ return -EFAULT;
+ return 0;
+}
+
+/**
+ * Get version information
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_version structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Fills in the version information in \p arg.
+ */
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_version *version = data;
+ int err;
+
+ version->version_major = dev->driver->major;
+ version->version_minor = dev->driver->minor;
+ version->version_patchlevel = dev->driver->patchlevel;
+ err = drm_copy_field(version->name, &version->name_len,
+ dev->driver->name);
+ if (!err)
+ err = drm_copy_field(version->date, &version->date_len,
+ dev->driver->date);
+ if (!err)
+ err = drm_copy_field(version->desc, &version->desc_len,
+ dev->driver->desc);
+
+ return err;
+}
+
+/**
+ * Called whenever a process performs an ioctl on /dev/drm.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ *
+ * Looks up the ioctl function in the ::ioctls table, checking for root
+ * previleges if so required, and dispatches to the respective function.
+ */
+int drm_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_ioctl_desc *ioctl;
+ drm_ioctl_t *func;
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ int retcode = -EINVAL;
+ char stack_kdata[128];
+ char *kdata = NULL;
+
+ atomic_inc(&dev->ioctl_count);
+ atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
+ ++file_priv->ioctl_count;
+
+ DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
+ task_pid_nr(current), cmd, nr,
+ (long)old_encode_dev(file_priv->minor->device),
+ file_priv->authenticated);
+
+ if ((nr >= DRM_CORE_IOCTL_COUNT) &&
+ ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
+ goto err_i1;
+ if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
+ (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
+ ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
+ else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
+ ioctl = &drm_ioctls[nr];
+ cmd = ioctl->cmd;
+ } else
+ goto err_i1;
+
+ /* Do not trust userspace, use our own definition */
+ func = ioctl->func;
+ /* is there a local override? */
+ if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
+ func = dev->driver->dma_ioctl;
+
+ if (!func) {
+ DRM_DEBUG("no function\n");
+ retcode = -EINVAL;
+ } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
+ ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
+ ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+ (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
+ retcode = -EACCES;
+ } else {
+ if (cmd & (IOC_IN | IOC_OUT)) {
+ if (_IOC_SIZE(cmd) <= sizeof(stack_kdata)) {
+ kdata = stack_kdata;
+ } else {
+ kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
+ if (!kdata) {
+ retcode = -ENOMEM;
+ goto err_i1;
+ }
+ }
+ }
+
+ if (cmd & IOC_IN) {
+ if (copy_from_user(kdata, (void __user *)arg,
+ _IOC_SIZE(cmd)) != 0) {
+ retcode = -EFAULT;
+ goto err_i1;
+ }
+ }
+ retcode = func(dev, kdata, file_priv);
+
+ if (cmd & IOC_OUT) {
+ if (copy_to_user((void __user *)arg, kdata,
+ _IOC_SIZE(cmd)) != 0)
+ retcode = -EFAULT;
+ }
+ }
+
+ err_i1:
+ if (kdata != stack_kdata)
+ kfree(kdata);
+ atomic_dec(&dev->ioctl_count);
+ if (retcode)
+ DRM_DEBUG("ret = %x\n", retcode);
+ return retcode;
+}
+
+EXPORT_SYMBOL(drm_ioctl);
+
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
+{
+ struct drm_map_list *entry;
+
+ list_for_each_entry(entry, &dev->maplist, head) {
+ if (entry->map && entry->map->type == _DRM_SHM &&
+ (entry->map->flags & _DRM_CONTAINS_LOCK)) {
+ return entry->map;
+ }
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(drm_getsarea);
--- /dev/null
+/*
+ * Copyright (c) 2006 Luc Verhaegen (quirks list)
+ * Copyright (c) 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
+ * FB layer.
+ * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include "drmP.h"
+#include "drm_edid.h"
+
+/*
+ * TODO:
+ * - support EDID 1.4 (incl. CE blocks)
+ */
+
+/*
+ * EDID blocks out in the wild have a variety of bugs, try to collect
+ * them here (note that userspace may work around broken monitors first,
+ * but fixes should make their way here so that the kernel "just works"
+ * on as many displays as possible).
+ */
+
+/* First detailed mode wrong, use largest 60Hz mode */
+#define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
+/* Reported 135MHz pixel clock is too high, needs adjustment */
+#define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
+/* Prefer the largest mode at 75 Hz */
+#define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
+/* Detail timing is in cm not mm */
+#define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
+/* Detailed timing descriptors have bogus size values, so just take the
+ * maximum size and use that.
+ */
+#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
+/* Monitor forgot to set the first detailed is preferred bit. */
+#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
+/* use +hsync +vsync for detailed mode */
+#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
+/* define the number of Extension EDID block */
+#define MAX_EDID_EXT_NUM 4
+
+#define LEVEL_DMT 0
+#define LEVEL_GTF 1
+#define LEVEL_CVT 2
+
+static struct edid_quirk {
+ char *vendor;
+ int product_id;
+ u32 quirks;
+} edid_quirk_list[] = {
+ /* Acer AL1706 */
+ { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Acer F51 */
+ { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Unknown Acer */
+ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Belinea 10 15 55 */
+ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
+ { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Envision Peripherals, Inc. EN-7100e */
+ { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
+
+ /* Funai Electronics PM36B */
+ { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
+ EDID_QUIRK_DETAILED_IN_CM },
+
+ /* LG Philips LCD LP154W01-A5 */
+ { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+ { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+
+ /* Philips 107p5 CRT */
+ { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Proview AY765C */
+ { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Samsung SyncMaster 205BW. Note: irony */
+ { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
+ /* Samsung SyncMaster 22[5-6]BW */
+ { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
+ { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+};
+
+
+/* Valid EDID header has these bytes */
+static const u8 edid_header[] = {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
+};
+
+/**
+ * edid_is_valid - sanity check EDID data
+ * @edid: EDID data
+ *
+ * Sanity check the EDID block by looking at the header, the version number
+ * and the checksum. Return 0 if the EDID doesn't check out, or 1 if it's
+ * valid.
+ */
+static bool edid_is_valid(struct edid *edid)
+{
+ int i, score = 0;
+ u8 csum = 0;
+ u8 *raw_edid = (u8 *)edid;
+
+ for (i = 0; i < sizeof(edid_header); i++)
+ if (raw_edid[i] == edid_header[i])
+ score++;
+
+ if (score == 8) ;
+ else if (score >= 6) {
+ DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
+ memcpy(raw_edid, edid_header, sizeof(edid_header));
+ } else
+ goto bad;
+
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+ if (csum) {
+ DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
+ goto bad;
+ }
+
+ if (edid->version != 1) {
+ DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
+ goto bad;
+ }
+
+ if (edid->revision > 4)
+ DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
+
+ return 1;
+
+bad:
+ if (raw_edid) {
+ DRM_ERROR("Raw EDID:\n");
+ print_hex_dump_bytes(KERN_ERR, DUMP_PREFIX_NONE, raw_edid, EDID_LENGTH);
+ printk("\n");
+ }
+ return 0;
+}
+
+/**
+ * edid_vendor - match a string against EDID's obfuscated vendor field
+ * @edid: EDID to match
+ * @vendor: vendor string
+ *
+ * Returns true if @vendor is in @edid, false otherwise
+ */
+static bool edid_vendor(struct edid *edid, char *vendor)
+{
+ char edid_vendor[3];
+
+ edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
+ edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
+ ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
+ edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
+
+ return !strncmp(edid_vendor, vendor, 3);
+}
+
+/**
+ * edid_get_quirks - return quirk flags for a given EDID
+ * @edid: EDID to process
+ *
+ * This tells subsequent routines what fixes they need to apply.
+ */
+static u32 edid_get_quirks(struct edid *edid)
+{
+ struct edid_quirk *quirk;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
+ quirk = &edid_quirk_list[i];
+
+ if (edid_vendor(edid, quirk->vendor) &&
+ (EDID_PRODUCT_ID(edid) == quirk->product_id))
+ return quirk->quirks;
+ }
+
+ return 0;
+}
+
+#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
+#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
+
+
+/**
+ * edid_fixup_preferred - set preferred modes based on quirk list
+ * @connector: has mode list to fix up
+ * @quirks: quirks list
+ *
+ * Walk the mode list for @connector, clearing the preferred status
+ * on existing modes and setting it anew for the right mode ala @quirks.
+ */
+static void edid_fixup_preferred(struct drm_connector *connector,
+ u32 quirks)
+{
+ struct drm_display_mode *t, *cur_mode, *preferred_mode;
+ int target_refresh = 0;
+
+ if (list_empty(&connector->probed_modes))
+ return;
+
+ if (quirks & EDID_QUIRK_PREFER_LARGE_60)
+ target_refresh = 60;
+ if (quirks & EDID_QUIRK_PREFER_LARGE_75)
+ target_refresh = 75;
+
+ preferred_mode = list_first_entry(&connector->probed_modes,
+ struct drm_display_mode, head);
+
+ list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
+ cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+
+ if (cur_mode == preferred_mode)
+ continue;
+
+ /* Largest mode is preferred */
+ if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
+ preferred_mode = cur_mode;
+
+ /* At a given size, try to get closest to target refresh */
+ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
+ MODE_REFRESH_DIFF(cur_mode, target_refresh) <
+ MODE_REFRESH_DIFF(preferred_mode, target_refresh)) {
+ preferred_mode = cur_mode;
+ }
+ }
+
+ preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
+}
+
+/*
+ * Add the Autogenerated from the DMT spec.
+ * This table is copied from xfree86/modes/xf86EdidModes.c.
+ * But the mode with Reduced blank feature is deleted.
+ */
+static struct drm_display_mode drm_dmt_modes[] = {
+ /* 640x350@85Hz */
+ { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 350, 382, 385, 445, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x400@85Hz */
+ { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 400, 401, 404, 445, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 720x400@85Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
+ 828, 936, 0, 400, 401, 404, 446, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 640x480@60Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+ 752, 800, 0, 480, 489, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 492, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@85Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
+ 752, 832, 0, 480, 481, 484, 509, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 800x600@56Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@72Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@85Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
+ 896, 1048, 0, 600, 601, 604, 631, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 848x480@60Hz */
+ { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
+ 976, 1088, 0, 480, 486, 494, 517, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@43Hz, interlace */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 772, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@85Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
+ 1072, 1376, 0, 768, 769, 772, 808, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1152x864@75Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@60Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
+ 1472, 1664, 0, 768, 771, 778, 798, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@75Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
+ 1488, 1696, 0, 768, 771, 778, 805, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x768@85Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
+ 1496, 1712, 0, 768, 771, 778, 809, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@60Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
+ 1480, 1680, 0, 800, 803, 809, 831, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x800@75Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
+ 1488, 1696, 0, 800, 803, 809, 838, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@85Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
+ 1496, 1712, 0, 800, 803, 809, 843, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@60Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
+ 1488, 1800, 0, 960, 961, 964, 1000, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@85Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
+ 1504, 1728, 0, 960, 961, 964, 1011, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@60Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@75Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@85Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
+ 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1360x768@60Hz */
+ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
+ 1536, 1792, 0, 768, 771, 777, 795, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@60Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
+ 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@75Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
+ 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@85Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
+ 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@60Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
+ 1672, 1904, 0, 900, 903, 909, 934, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@75Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
+ 1688, 1936, 0, 900, 903, 909, 942, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@85Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
+ 1696, 1952, 0, 900, 903, 909, 948, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@60Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@65Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@70Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@75Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 2025000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@85Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@60Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
+ 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@75Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
+ 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@85Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
+ 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1792x1344@60Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
+ 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1729x1344@75Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
+ 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1853x1392@60Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
+ 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1856x1392@75Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
+ 2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@60Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
+ 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@75Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
+ 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@85Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
+ 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@60Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
+ 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@75Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
+ 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@60Hz */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
+ 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@75HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@85HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+};
+static const int drm_num_dmt_modes =
+ sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+
+static struct drm_display_mode *drm_find_dmt(struct drm_device *dev,
+ int hsize, int vsize, int fresh)
+{
+ int i;
+ struct drm_display_mode *ptr, *mode;
+
+ mode = NULL;
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hsize == ptr->hdisplay &&
+ vsize == ptr->vdisplay &&
+ fresh == drm_mode_vrefresh(ptr)) {
+ /* get the expected default mode */
+ mode = drm_mode_duplicate(dev, ptr);
+ break;
+ }
+ }
+ return mode;
+}
+
+/*
+ * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
+ * monitors fill with ascii space (0x20) instead.
+ */
+static int
+bad_std_timing(u8 a, u8 b)
+{
+ return (a == 0x00 && b == 0x00) ||
+ (a == 0x01 && b == 0x01) ||
+ (a == 0x20 && b == 0x20);
+}
+
+/**
+ * drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @t: standard timing params
+ * @timing_level: standard timing level
+ *
+ * Take the standard timing params (in this case width, aspect, and refresh)
+ * and convert them into a real mode using CVT/GTF/DMT.
+ *
+ * Punts for now, but should eventually use the FB layer's CVT based mode
+ * generation code.
+ */
+struct drm_display_mode *drm_mode_std(struct drm_device *dev,
+ struct std_timing *t,
+ int revision,
+ int timing_level)
+{
+ struct drm_display_mode *mode;
+ int hsize, vsize;
+ int vrefresh_rate;
+ unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
+ >> EDID_TIMING_ASPECT_SHIFT;
+ unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
+ >> EDID_TIMING_VFREQ_SHIFT;
+
+ if (bad_std_timing(t->hsize, t->vfreq_aspect))
+ return NULL;
+
+ /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
+ hsize = t->hsize * 8 + 248;
+ /* vrefresh_rate = vfreq + 60 */
+ vrefresh_rate = vfreq + 60;
+ /* the vdisplay is calculated based on the aspect ratio */
+ if (aspect_ratio == 0) {
+ if (revision < 3)
+ vsize = hsize;
+ else
+ vsize = (hsize * 10) / 16;
+ } else if (aspect_ratio == 1)
+ vsize = (hsize * 3) / 4;
+ else if (aspect_ratio == 2)
+ vsize = (hsize * 4) / 5;
+ else
+ vsize = (hsize * 9) / 16;
+ /* HDTV hack */
+ if (hsize == 1360 && vsize == 765 && vrefresh_rate == 60) {
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ mode->hdisplay = 1366;
+ mode->vsync_start = mode->vsync_start - 1;
+ mode->vsync_end = mode->vsync_end - 1;
+ return mode;
+ }
+ mode = NULL;
+ /* check whether it can be found in default mode table */
+ mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate);
+ if (mode)
+ return mode;
+
+ switch (timing_level) {
+ case LEVEL_DMT:
+ break;
+ case LEVEL_GTF:
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ break;
+ case LEVEL_CVT:
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ break;
+ }
+ return mode;
+}
+
+/**
+ * drm_mode_detailed - create a new mode from an EDID detailed timing section
+ * @dev: DRM device (needed to create new mode)
+ * @edid: EDID block
+ * @timing: EDID detailed timing info
+ * @quirks: quirks to apply
+ *
+ * An EDID detailed timing block contains enough info for us to create and
+ * return a new struct drm_display_mode.
+ */
+static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
+ struct edid *edid,
+ struct detailed_timing *timing,
+ u32 quirks)
+{
+ struct drm_display_mode *mode;
+ struct detailed_pixel_timing *pt = &timing->data.pixel_data;
+ unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
+ unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
+ unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
+ unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
+ unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
+ unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
+ unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+ unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
+
+ /* ignore tiny modes */
+ if (hactive < 64 || vactive < 64)
+ return NULL;
+
+ if (pt->misc & DRM_EDID_PT_STEREO) {
+ printk(KERN_WARNING "stereo mode not supported\n");
+ return NULL;
+ }
+ if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
+ printk(KERN_WARNING "integrated sync not supported\n");
+ return NULL;
+ }
+
+ /* it is incorrect if hsync/vsync width is zero */
+ if (!hsync_pulse_width || !vsync_pulse_width) {
+ DRM_DEBUG_KMS("Incorrect Detailed timing. "
+ "Wrong Hsync/Vsync pulse width\n");
+ return NULL;
+ }
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return NULL;
+
+ mode->type = DRM_MODE_TYPE_DRIVER;
+
+ if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
+ timing->pixel_clock = cpu_to_le16(1088);
+
+ mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
+
+ mode->hdisplay = hactive;
+ mode->hsync_start = mode->hdisplay + hsync_offset;
+ mode->hsync_end = mode->hsync_start + hsync_pulse_width;
+ mode->htotal = mode->hdisplay + hblank;
+
+ mode->vdisplay = vactive;
+ mode->vsync_start = mode->vdisplay + vsync_offset;
+ mode->vsync_end = mode->vsync_start + vsync_pulse_width;
+ mode->vtotal = mode->vdisplay + vblank;
+
+ /* perform the basic check for the detailed timing */
+ if (mode->hsync_end > mode->htotal ||
+ mode->vsync_end > mode->vtotal) {
+ drm_mode_destroy(dev, mode);
+ DRM_DEBUG_KMS("Incorrect detailed timing. "
+ "Sync is beyond the blank.\n");
+ return NULL;
+ }
+
+ /* Some EDIDs have bogus h/vtotal values */
+ if (mode->hsync_end > mode->htotal)
+ mode->htotal = mode->hsync_end + 1;
+ if (mode->vsync_end > mode->vtotal)
+ mode->vtotal = mode->vsync_end + 1;
+
+ drm_mode_set_name(mode);
+
+ if (pt->misc & DRM_EDID_PT_INTERLACED)
+ mode->flags |= DRM_MODE_FLAG_INTERLACE;
+
+ if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
+ pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
+ }
+
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+
+ mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+ mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
+
+ if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
+ mode->width_mm *= 10;
+ mode->height_mm *= 10;
+ }
+
+ if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
+ mode->width_mm = edid->width_cm * 10;
+ mode->height_mm = edid->height_cm * 10;
+ }
+
+ return mode;
+}
+
+/*
+ * Detailed mode info for the EDID "established modes" data to use.
+ */
+static struct drm_display_mode edid_est_modes[] = {
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 491, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
+ 768, 864, 0, 480, 483, 486, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
+ 752, 800, 0, 480, 490, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
+ 846, 900, 0, 400, 421, 423, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
+ 846, 900, 0, 400, 412, 414, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 776, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
+ { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
+ 928, 1152, 0, 624, 625, 628, 667, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
+};
+
+#define EDID_EST_TIMINGS 16
+#define EDID_STD_TIMINGS 8
+#define EDID_DETAILED_TIMINGS 4
+
+/**
+ * add_established_modes - get est. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Each EDID block contains a bitmap of the supported "established modes" list
+ * (defined above). Tease them out and add them to the global modes list.
+ */
+static int add_established_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ unsigned long est_bits = edid->established_timings.t1 |
+ (edid->established_timings.t2 << 8) |
+ ((edid->established_timings.mfg_rsvd & 0x80) << 9);
+ int i, modes = 0;
+
+ for (i = 0; i <= EDID_EST_TIMINGS; i++)
+ if (est_bits & (1<<i)) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ return modes;
+}
+/**
+ * stanard_timing_level - get std. timing level(CVT/GTF/DMT)
+ * @edid: EDID block to scan
+ */
+static int standard_timing_level(struct edid *edid)
+{
+ if (edid->revision >= 2) {
+ if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
+ return LEVEL_CVT;
+ return LEVEL_GTF;
+ }
+ return LEVEL_DMT;
+}
+
+/**
+ * add_standard_modes - get std. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Standard modes can be calculated using the CVT standard. Grab them from
+ * @edid, calculate them, and add them to the list.
+ */
+static int add_standard_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int i, modes = 0;
+ int timing_level;
+
+ timing_level = standard_timing_level(edid);
+
+ for (i = 0; i < EDID_STD_TIMINGS; i++) {
+ struct std_timing *t = &edid->standard_timings[i];
+ struct drm_display_mode *newmode;
+
+ /* If std timings bytes are 1, 1 it's empty */
+ if (t->hsize == 1 && t->vfreq_aspect == 1)
+ continue;
+
+ newmode = drm_mode_std(dev, &edid->standard_timings[i],
+ edid->revision, timing_level);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ return modes;
+}
+
+/*
+ * XXX fix this for:
+ * - GTF secondary curve formula
+ * - EDID 1.4 range offsets
+ * - CVT extended bits
+ */
+static bool
+mode_in_range(struct drm_display_mode *mode, struct detailed_timing *timing)
+{
+ struct detailed_data_monitor_range *range;
+ int hsync, vrefresh;
+
+ range = &timing->data.other_data.data.range;
+
+ hsync = drm_mode_hsync(mode);
+ vrefresh = drm_mode_vrefresh(mode);
+
+ if (hsync < range->min_hfreq_khz || hsync > range->max_hfreq_khz)
+ return false;
+
+ if (vrefresh < range->min_vfreq || vrefresh > range->max_vfreq)
+ return false;
+
+ if (range->pixel_clock_mhz && range->pixel_clock_mhz != 0xff) {
+ /* be forgiving since it's in units of 10MHz */
+ int max_clock = range->pixel_clock_mhz * 10 + 9;
+ max_clock *= 1000;
+ if (mode->clock > max_clock)
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will
+ * need to account for them.
+ */
+static int drm_gtf_modes_for_range(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ if (mode_in_range(drm_dmt_modes + i, timing)) {
+ newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ return modes;
+}
+
+static int drm_cvt_modes(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, j, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+ struct cvt_timing *cvt;
+ const int rates[] = { 60, 85, 75, 60, 50 };
+
+ for (i = 0; i < 4; i++) {
+ int width, height;
+ cvt = &(timing->data.other_data.data.cvt[i]);
+
+ height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
+ switch (cvt->code[1] & 0xc0) {
+ case 0x00:
+ width = height * 4 / 3;
+ break;
+ case 0x40:
+ width = height * 16 / 9;
+ break;
+ case 0x80:
+ width = height * 16 / 10;
+ break;
+ case 0xc0:
+ width = height * 15 / 9;
+ break;
+ }
+
+ for (j = 1; j < 5; j++) {
+ if (cvt->code[2] & (1 << j)) {
+ newmode = drm_cvt_mode(dev, width, height,
+ rates[j], j == 0,
+ false, false);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static int add_detailed_modes(struct drm_connector *connector,
+ struct detailed_timing *timing,
+ struct edid *edid, u32 quirks, int preferred)
+{
+ int i, modes = 0;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ int timing_level = standard_timing_level(edid);
+ int gtf = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ if (timing->pixel_clock) {
+ newmode = drm_mode_detailed(dev, edid, timing, quirks);
+ if (!newmode)
+ return 0;
+
+ if (preferred)
+ newmode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_probed_add(connector, newmode);
+ return 1;
+ }
+
+ /* other timing types */
+ switch (data->type) {
+ case EDID_DETAIL_MONITOR_RANGE:
+ if (gtf)
+ modes += drm_gtf_modes_for_range(connector, timing);
+ break;
+ case EDID_DETAIL_STD_MODES:
+ /* Six modes per detailed section */
+ for (i = 0; i < 6; i++) {
+ struct std_timing *std;
+ struct drm_display_mode *newmode;
+
+ std = &data->data.timings[i];
+ newmode = drm_mode_std(dev, std, edid->revision,
+ timing_level);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ break;
+ case EDID_DETAIL_CVT_3BYTE:
+ modes += drm_cvt_modes(connector, timing);
+ break;
+ default:
+ break;
+ }
+
+ return modes;
+}
+
+/**
+ * add_detailed_info - get detailed mode info from EDID data
+ * @connector: attached connector
+ * @edid: EDID block to scan
+ * @quirks: quirks to apply
+ *
+ * Some of the detailed timing sections may contain mode information. Grab
+ * it and add it to the list.
+ */
+static int add_detailed_info(struct drm_connector *connector,
+ struct edid *edid, u32 quirks)
+{
+ int i, modes = 0;
+
+ for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
+ struct detailed_timing *timing = &edid->detailed_timings[i];
+ int preferred = (i == 0) && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
+
+ /* In 1.0, only timings are allowed */
+ if (!timing->pixel_clock && edid->version == 1 &&
+ edid->revision == 0)
+ continue;
+
+ modes += add_detailed_modes(connector, timing, edid, quirks,
+ preferred);
+ }
+
+ return modes;
+}
+
+/**
+ * add_detailed_mode_eedid - get detailed mode info from addtional timing
+ * EDID block
+ * @connector: attached connector
+ * @edid: EDID block to scan(It is only to get addtional timing EDID block)
+ * @quirks: quirks to apply
+ *
+ * Some of the detailed timing sections may contain mode information. Grab
+ * it and add it to the list.
+ */
+static int add_detailed_info_eedid(struct drm_connector *connector,
+ struct edid *edid, u32 quirks)
+{
+ int i, modes = 0;
+ char *edid_ext = NULL;
+ struct detailed_timing *timing;
+ int edid_ext_num;
+ int start_offset, end_offset;
+ int timing_level;
+
+ if (edid->version == 1 && edid->revision < 3) {
+ /* If the EDID version is less than 1.3, there is no
+ * extension EDID.
+ */
+ return 0;
+ }
+ if (!edid->extensions) {
+ /* if there is no extension EDID, it is unnecessary to
+ * parse the E-EDID to get detailed info
+ */
+ return 0;
+ }
+
+ /* Chose real EDID extension number */
+ edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
+ MAX_EDID_EXT_NUM : edid->extensions;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid_ext_num; i++) {
+ edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
+ /* This block is CEA extension */
+ if (edid_ext[0] == 0x02)
+ break;
+ }
+
+ if (i == edid_ext_num) {
+ /* if there is no additional timing EDID block, return */
+ return 0;
+ }
+
+ /* Get the start offset of detailed timing block */
+ start_offset = edid_ext[2];
+ if (start_offset == 0) {
+ /* If the start_offset is zero, it means that neither detailed
+ * info nor data block exist. In such case it is also
+ * unnecessary to parse the detailed timing info.
+ */
+ return 0;
+ }
+
+ timing_level = standard_timing_level(edid);
+ end_offset = EDID_LENGTH;
+ end_offset -= sizeof(struct detailed_timing);
+ for (i = start_offset; i < end_offset;
+ i += sizeof(struct detailed_timing)) {
+ timing = (struct detailed_timing *)(edid_ext + i);
+ modes += add_detailed_modes(connector, timing, edid, quirks, 0);
+ }
+
+ return modes;
+}
+
+#define DDC_ADDR 0x50
+/**
+ * Get EDID information via I2C.
+ *
+ * \param adapter : i2c device adaptor
+ * \param buf : EDID data buffer to be filled
+ * \param len : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Try to fetch EDID information by calling i2c driver function.
+ */
+int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
+ unsigned char *buf, int len)
+{
+ unsigned char start = 0x0;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = DDC_ADDR,
+ .flags = 0,
+ .len = 1,
+ .buf = &start,
+ }, {
+ .addr = DDC_ADDR,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = buf,
+ }
+ };
+
+ if (i2c_transfer(adapter, msgs, 2) == 2)
+ return 0;
+
+ return -1;
+}
+EXPORT_SYMBOL(drm_do_probe_ddc_edid);
+
+static int drm_ddc_read_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter,
+ char *buf, int len)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter, buf, len))
+ return -1;
+ if (edid_is_valid((struct edid *)buf))
+ return 0;
+ }
+
+ /* repeated checksum failures; warn, but carry on */
+ dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return -1;
+}
+
+/**
+ * drm_get_edid - get EDID data, if available
+ * @connector: connector we're probing
+ * @adapter: i2c adapter to use for DDC
+ *
+ * Poke the given connector's i2c channel to grab EDID data if possible.
+ *
+ * Return edid data or NULL if we couldn't find any.
+ */
+struct edid *drm_get_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter)
+{
+ int ret;
+ struct edid *edid;
+
+ edid = kmalloc(EDID_LENGTH * (MAX_EDID_EXT_NUM + 1),
+ GFP_KERNEL);
+ if (edid == NULL) {
+ dev_warn(&connector->dev->pdev->dev,
+ "Failed to allocate EDID\n");
+ goto end;
+ }
+
+ /* Read first EDID block */
+ ret = drm_ddc_read_edid(connector, adapter,
+ (unsigned char *)edid, EDID_LENGTH);
+ if (ret != 0)
+ goto clean_up;
+
+ /* There are EDID extensions to be read */
+ if (edid->extensions != 0) {
+ int edid_ext_num = edid->extensions;
+
+ if (edid_ext_num > MAX_EDID_EXT_NUM) {
+ dev_warn(&connector->dev->pdev->dev,
+ "The number of extension(%d) is "
+ "over max (%d), actually read number (%d)\n",
+ edid_ext_num, MAX_EDID_EXT_NUM,
+ MAX_EDID_EXT_NUM);
+ /* Reset EDID extension number to be read */
+ edid_ext_num = MAX_EDID_EXT_NUM;
+ }
+ /* Read EDID including extensions too */
+ ret = drm_ddc_read_edid(connector, adapter, (char *)edid,
+ EDID_LENGTH * (edid_ext_num + 1));
+ if (ret != 0)
+ goto clean_up;
+
+ }
+
+ connector->display_info.raw_edid = (char *)edid;
+ goto end;
+
+clean_up:
+ kfree(edid);
+ edid = NULL;
+end:
+ return edid;
+
+}
+EXPORT_SYMBOL(drm_get_edid);
+
+#define HDMI_IDENTIFIER 0x000C03
+#define VENDOR_BLOCK 0x03
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(struct edid *edid)
+{
+ char *edid_ext = NULL;
+ int i, hdmi_id, edid_ext_num;
+ int start_offset, end_offset;
+ bool is_hdmi = false;
+
+ /* No EDID or EDID extensions */
+ if (edid == NULL || edid->extensions == 0)
+ goto end;
+
+ /* Chose real EDID extension number */
+ edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
+ MAX_EDID_EXT_NUM : edid->extensions;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid_ext_num; i++) {
+ edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
+ /* This block is CEA extension */
+ if (edid_ext[0] == 0x02)
+ break;
+ }
+
+ if (i == edid_ext_num)
+ goto end;
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ /*
+ * Because HDMI identifier is in Vendor Specific Block,
+ * search it from all data blocks of CEA extension.
+ */
+ for (i = start_offset; i < end_offset;
+ /* Increased by data block len */
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ /* Find vendor specific block */
+ if ((edid_ext[i] >> 5) == VENDOR_BLOCK) {
+ hdmi_id = edid_ext[i + 1] | (edid_ext[i + 2] << 8) |
+ edid_ext[i + 3] << 16;
+ /* Find HDMI identifier */
+ if (hdmi_id == HDMI_IDENTIFIER)
+ is_hdmi = true;
+ break;
+ }
+ }
+
+end:
+ return is_hdmi;
+}
+EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+
+/**
+ * drm_add_edid_modes - add modes from EDID data, if available
+ * @connector: connector we're probing
+ * @edid: edid data
+ *
+ * Add the specified modes to the connector's mode list.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int num_modes = 0;
+ u32 quirks;
+
+ if (edid == NULL) {
+ return 0;
+ }
+ if (!edid_is_valid(edid)) {
+ dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return 0;
+ }
+
+ quirks = edid_get_quirks(edid);
+
+ num_modes += add_established_modes(connector, edid);
+ num_modes += add_standard_modes(connector, edid);
+ num_modes += add_detailed_info(connector, edid, quirks);
+ num_modes += add_detailed_info_eedid(connector, edid, quirks);
+
+ if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
+ edid_fixup_preferred(connector, quirks);
+
+ connector->display_info.serration_vsync = (edid->input & DRM_EDID_INPUT_SERRATION_VSYNC) ? 1 : 0;
+ connector->display_info.sync_on_green = (edid->input & DRM_EDID_INPUT_SYNC_ON_GREEN) ? 1 : 0;
+ connector->display_info.composite_sync = (edid->input & DRM_EDID_INPUT_COMPOSITE_SYNC) ? 1 : 0;
+ connector->display_info.separate_syncs = (edid->input & DRM_EDID_INPUT_SEPARATE_SYNCS) ? 1 : 0;
+ connector->display_info.blank_to_black = (edid->input & DRM_EDID_INPUT_BLANK_TO_BLACK) ? 1 : 0;
+ connector->display_info.video_level = (edid->input & DRM_EDID_INPUT_VIDEO_LEVEL) >> 5;
+ connector->display_info.digital = (edid->input & DRM_EDID_INPUT_DIGITAL) ? 1 : 0;
+ connector->display_info.width_mm = edid->width_cm * 10;
+ connector->display_info.height_mm = edid->height_cm * 10;
+ connector->display_info.gamma = edid->gamma;
+ connector->display_info.gtf_supported = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF) ? 1 : 0;
+ connector->display_info.standard_color = (edid->features & DRM_EDID_FEATURE_STANDARD_COLOR) ? 1 : 0;
+ connector->display_info.display_type = (edid->features & DRM_EDID_FEATURE_DISPLAY_TYPE) >> 3;
+ connector->display_info.active_off_supported = (edid->features & DRM_EDID_FEATURE_PM_ACTIVE_OFF) ? 1 : 0;
+ connector->display_info.suspend_supported = (edid->features & DRM_EDID_FEATURE_PM_SUSPEND) ? 1 : 0;
+ connector->display_info.standby_supported = (edid->features & DRM_EDID_FEATURE_PM_STANDBY) ? 1 : 0;
+ connector->display_info.gamma = edid->gamma;
+
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_edid_modes);
+
+/**
+ * drm_add_modes_noedid - add modes for the connectors without EDID
+ * @connector: connector we're probing
+ * @hdisplay: the horizontal display limit
+ * @vdisplay: the vertical display limit
+ *
+ * Add the specified modes to the connector's mode list. Only when the
+ * hdisplay/vdisplay is not beyond the given limit, it will be added.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_modes_noedid(struct drm_connector *connector,
+ int hdisplay, int vdisplay)
+{
+ int i, count, num_modes = 0;
+ struct drm_display_mode *mode, *ptr;
+ struct drm_device *dev = connector->dev;
+
+ count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+ if (hdisplay < 0)
+ hdisplay = 0;
+ if (vdisplay < 0)
+ vdisplay = 0;
+
+ for (i = 0; i < count; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hdisplay && vdisplay) {
+ /*
+ * Only when two are valid, they will be used to check
+ * whether the mode should be added to the mode list of
+ * the connector.
+ */
+ if (ptr->hdisplay > hdisplay ||
+ ptr->vdisplay > vdisplay)
+ continue;
+ }
+ if (drm_mode_vrefresh(ptr) > 61)
+ continue;
+ mode = drm_mode_duplicate(dev, ptr);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ num_modes++;
+ }
+ }
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_modes_noedid);
--- /dev/null
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drm_encoder_slave.h"
+
+/**
+ * drm_i2c_encoder_init - Initialize an I2C slave encoder
+ * @dev: DRM device.
+ * @encoder: Encoder to be attached to the I2C device. You aren't
+ * required to have called drm_encoder_init() before.
+ * @adap: I2C adapter that will be used to communicate with
+ * the device.
+ * @info: Information that will be used to create the I2C device.
+ * Required fields are @addr and @type.
+ *
+ * Create an I2C device on the specified bus (the module containing its
+ * driver is transparently loaded) and attach it to the specified
+ * &drm_encoder_slave. The @slave_funcs field will be initialized with
+ * the hooks provided by the slave driver.
+ *
+ * Returns 0 on success or a negative errno on failure, in particular,
+ * -ENODEV is returned when no matching driver is found.
+ */
+int drm_i2c_encoder_init(struct drm_device *dev,
+ struct drm_encoder_slave *encoder,
+ struct i2c_adapter *adap,
+ const struct i2c_board_info *info)
+{
+ char modalias[sizeof(I2C_MODULE_PREFIX)
+ + I2C_NAME_SIZE];
+ struct module *module = NULL;
+ struct i2c_client *client;
+ struct drm_i2c_encoder_driver *encoder_drv;
+ int err = 0;
+
+ snprintf(modalias, sizeof(modalias),
+ "%s%s", I2C_MODULE_PREFIX, info->type);
+ request_module(modalias);
+
+ client = i2c_new_device(adap, info);
+ if (!client) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!client->driver) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ module = client->driver->driver.owner;
+ if (!try_module_get(module)) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ encoder->bus_priv = client;
+
+ encoder_drv = to_drm_i2c_encoder_driver(client->driver);
+
+ err = encoder_drv->encoder_init(client, dev, encoder);
+ if (err)
+ goto fail_unregister;
+
+ return 0;
+
+fail_unregister:
+ i2c_unregister_device(client);
+ module_put(module);
+fail:
+ return err;
+}
+EXPORT_SYMBOL(drm_i2c_encoder_init);
+
+/**
+ * drm_i2c_encoder_destroy - Unregister the I2C device backing an encoder
+ * @drm_encoder: Encoder to be unregistered.
+ *
+ * This should be called from the @destroy method of an I2C slave
+ * encoder driver once I2C access is no longer needed.
+ */
+void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
+{
+ struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
+ struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
+ struct module *module = client->driver->driver.owner;
+
+ i2c_unregister_device(client);
+ encoder->bus_priv = NULL;
+
+ module_put(module);
+}
+EXPORT_SYMBOL(drm_i2c_encoder_destroy);
--- /dev/null
+/**
+ * \file drm_fops.c
+ * File operations for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Daryll Strauss <daryll@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/poll.h>
+#include <linux/smp_lock.h>
+
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev);
+
+static int drm_setup(struct drm_device * dev)
+{
+ int i;
+ int ret;
+
+ if (dev->driver->firstopen) {
+ ret = dev->driver->firstopen(dev);
+ if (ret != 0)
+ return ret;
+ }
+
+ atomic_set(&dev->ioctl_count, 0);
+ atomic_set(&dev->vma_count, 0);
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
+ i = drm_dma_setup(dev);
+ if (i < 0)
+ return i;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
+ atomic_set(&dev->counts[i], 0);
+
+ dev->sigdata.lock = NULL;
+
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_waitqueue_head(&dev->context_wait);
+ dev->if_version = 0;
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_async = NULL;
+ init_waitqueue_head(&dev->buf_readers);
+ init_waitqueue_head(&dev->buf_writers);
+
+ DRM_DEBUG("\n");
+
+ /*
+ * The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+
+ return 0;
+}
+
+/**
+ * Open file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the DRM device with the same minor number, calls open_helper(), and
+ * increments the device open count. If the open count was previous at zero,
+ * i.e., it's the first that the device is open, then calls setup().
+ */
+int drm_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ int minor_id = iminor(inode);
+ struct drm_minor *minor;
+ int retcode = 0;
+
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ return -ENODEV;
+
+ if (!(dev = minor->dev))
+ return -ENODEV;
+
+ retcode = drm_open_helper(inode, filp, dev);
+ if (!retcode) {
+ atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+ spin_lock(&dev->count_lock);
+ if (!dev->open_count++) {
+ spin_unlock(&dev->count_lock);
+ retcode = drm_setup(dev);
+ goto out;
+ }
+ spin_unlock(&dev->count_lock);
+ }
+out:
+ mutex_lock(&dev->struct_mutex);
+ if (minor->type == DRM_MINOR_LEGACY) {
+ BUG_ON((dev->dev_mapping != NULL) &&
+ (dev->dev_mapping != inode->i_mapping));
+ if (dev->dev_mapping == NULL)
+ dev->dev_mapping = inode->i_mapping;
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_open);
+
+/**
+ * File \c open operation.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ *
+ * Puts the dev->fops corresponding to the device minor number into
+ * \p filp, call the \c open method, and restore the file operations.
+ */
+int drm_stub_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ struct drm_minor *minor;
+ int minor_id = iminor(inode);
+ int err = -ENODEV;
+ const struct file_operations *old_fops;
+
+ DRM_DEBUG("\n");
+
+ /* BKL pushdown: note that nothing else serializes idr_find() */
+ lock_kernel();
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ goto out;
+
+ if (!(dev = minor->dev))
+ goto out;
+
+ old_fops = filp->f_op;
+ filp->f_op = fops_get(&dev->driver->fops);
+ if (filp->f_op == NULL) {
+ filp->f_op = old_fops;
+ goto out;
+ }
+ if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
+ fops_put(filp->f_op);
+ filp->f_op = fops_get(old_fops);
+ }
+ fops_put(old_fops);
+
+out:
+ unlock_kernel();
+ return err;
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static int drm_cpu_valid(void)
+{
+#if defined(__i386__)
+ if (boot_cpu_data.x86 == 3)
+ return 0; /* No cmpxchg on a 386 */
+#endif
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ return 0; /* No cmpxchg before v9 sparc. */
+#endif
+ return 1;
+}
+
+/**
+ * Called whenever a process opens /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param dev device.
+ * \return zero on success or a negative number on failure.
+ *
+ * Creates and initializes a drm_file structure for the file private data in \p
+ * filp and add it into the double linked list in \p dev.
+ */
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev)
+{
+ int minor_id = iminor(inode);
+ struct drm_file *priv;
+ int ret;
+
+ if (filp->f_flags & O_EXCL)
+ return -EBUSY; /* No exclusive opens */
+ if (!drm_cpu_valid())
+ return -EINVAL;
+
+ DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
+
+ priv = kmalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ memset(priv, 0, sizeof(*priv));
+ filp->private_data = priv;
+ priv->filp = filp;
+ priv->uid = current_euid();
+ priv->pid = task_pid_nr(current);
+ priv->minor = idr_find(&drm_minors_idr, minor_id);
+ priv->ioctl_count = 0;
+ /* for compatibility root is always authenticated */
+ priv->authenticated = capable(CAP_SYS_ADMIN);
+ priv->lock_count = 0;
+
+ INIT_LIST_HEAD(&priv->lhead);
+ INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->event_list);
+ init_waitqueue_head(&priv->event_wait);
+ priv->event_space = 4096; /* set aside 4k for event buffer */
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_open(dev, priv);
+
+ if (dev->driver->open) {
+ ret = dev->driver->open(dev, priv);
+ if (ret < 0)
+ goto out_free;
+ }
+
+
+ /* if there is no current master make this fd it */
+ mutex_lock(&dev->struct_mutex);
+ if (!priv->minor->master) {
+ /* create a new master */
+ priv->minor->master = drm_master_create(priv->minor);
+ if (!priv->minor->master) {
+ mutex_unlock(&dev->struct_mutex);
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ priv->is_master = 1;
+ /* take another reference for the copy in the local file priv */
+ priv->master = drm_master_get(priv->minor->master);
+
+ priv->authenticated = 1;
+
+ mutex_unlock(&dev->struct_mutex);
+ if (dev->driver->master_create) {
+ ret = dev->driver->master_create(dev, priv->master);
+ if (ret) {
+ mutex_lock(&dev->struct_mutex);
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, priv, true);
+ if (ret) {
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ } else {
+ /* get a reference to the master */
+ priv->master = drm_master_get(priv->minor->master);
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&priv->lhead, &dev->filelist);
+ mutex_unlock(&dev->struct_mutex);
+
+#ifdef __alpha__
+ /*
+ * Default the hose
+ */
+ if (!dev->hose) {
+ struct pci_dev *pci_dev;
+ pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+ if (pci_dev) {
+ dev->hose = pci_dev->sysdata;
+ pci_dev_put(pci_dev);
+ }
+ if (!dev->hose) {
+ struct pci_bus *b = pci_bus_b(pci_root_buses.next);
+ if (b)
+ dev->hose = b->sysdata;
+ }
+ }
+#endif
+
+ return 0;
+ out_free:
+ kfree(priv);
+ filp->private_data = NULL;
+ return ret;
+}
+
+/** No-op. */
+int drm_fasync(int fd, struct file *filp, int on)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
+ (long)old_encode_dev(priv->minor->device));
+ return fasync_helper(fd, filp, on, &dev->buf_async);
+}
+EXPORT_SYMBOL(drm_fasync);
+
+/*
+ * Reclaim locked buffers; note that this may be a bad idea if the current
+ * context doesn't have the hw lock...
+ */
+static void drm_reclaim_locked_buffers(struct drm_device *dev, struct file *f)
+{
+ struct drm_file *file_priv = f->private_data;
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ } else {
+ unsigned long _end = jiffies + 3 * DRM_HZ;
+ int locked = 0;
+
+ drm_idlelock_take(&file_priv->master->lock);
+
+ /*
+ * Wait for a while.
+ */
+ do {
+ spin_lock_bh(&file_priv->master->lock.spinlock);
+ locked = file_priv->master->lock.idle_has_lock;
+ spin_unlock_bh(&file_priv->master->lock.spinlock);
+ if (locked)
+ break;
+ schedule();
+ } while (!time_after_eq(jiffies, _end));
+
+ if (!locked) {
+ DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
+ "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
+ "\tI will go on reclaiming the buffers anyway.\n");
+ }
+
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+}
+
+static void drm_master_release(struct drm_device *dev, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+
+ if (dev->driver->reclaim_buffers_locked &&
+ file_priv->master->lock.hw_lock)
+ drm_reclaim_locked_buffers(dev, filp);
+
+ if (dev->driver->reclaim_buffers_idlelocked &&
+ file_priv->master->lock.hw_lock) {
+ drm_idlelock_take(&file_priv->master->lock);
+ dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ DRM_DEBUG("File %p released, freeing lock for context %d\n",
+ filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ drm_lock_free(&file_priv->master->lock,
+ _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !dev->driver->reclaim_buffers_locked) {
+ dev->driver->reclaim_buffers(dev, file_priv);
+ }
+}
+
+static void drm_events_release(struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e, *et;
+ struct drm_pending_vblank_event *v, *vt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Remove pending flips */
+ list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
+ if (v->base.file_priv == file_priv) {
+ list_del(&v->base.link);
+ drm_vblank_put(dev, v->pipe);
+ v->base.destroy(&v->base);
+ }
+
+ /* Remove unconsumed events */
+ list_for_each_entry_safe(e, et, &file_priv->event_list, link)
+ e->destroy(e);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * Release file.
+ *
+ * \param inode device inode
+ * \param file_priv DRM file private.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the hardware lock is held then free it, and take it again for the kernel
+ * context since it's necessary to reclaim buffers. Unlink the file private
+ * data from its list and free it. Decreases the open count and if it reaches
+ * zero calls drm_lastclose().
+ */
+int drm_release(struct inode *inode, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ int retcode = 0;
+
+ lock_kernel();
+
+ DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+ if (dev->driver->preclose)
+ dev->driver->preclose(dev, file_priv);
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+ task_pid_nr(current),
+ (long)old_encode_dev(file_priv->minor->device),
+ dev->open_count);
+
+ /* if the master has gone away we can't do anything with the lock */
+ if (file_priv->minor->master)
+ drm_master_release(dev, filp);
+
+ drm_events_release(file_priv);
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_release(dev, file_priv);
+
+ if (dev->driver->driver_features & DRIVER_MODESET)
+ drm_fb_release(file_priv);
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->tag == file_priv &&
+ pos->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev,
+ pos->handle);
+
+ drm_ctxbitmap_free(dev, pos->handle);
+
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (file_priv->is_master) {
+ struct drm_master *master = file_priv->master;
+ struct drm_file *temp;
+ list_for_each_entry(temp, &dev->filelist, lhead) {
+ if ((temp->master == file_priv->master) &&
+ (temp != file_priv))
+ temp->authenticated = 0;
+ }
+
+ /**
+ * Since the master is disappearing, so is the
+ * possibility to lock.
+ */
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+
+ if (file_priv->minor->master == file_priv->master) {
+ /* drop the reference held my the minor */
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, true);
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+
+ /* drop the reference held my the file priv */
+ drm_master_put(&file_priv->master);
+ file_priv->is_master = 0;
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (dev->driver->postclose)
+ dev->driver->postclose(dev, file_priv);
+ kfree(file_priv);
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+ atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
+ spin_lock(&dev->count_lock);
+ if (!--dev->open_count) {
+ if (atomic_read(&dev->ioctl_count)) {
+ DRM_ERROR("Device busy: %d\n",
+ atomic_read(&dev->ioctl_count));
+ spin_unlock(&dev->count_lock);
+ unlock_kernel();
+ return -EBUSY;
+ }
+ spin_unlock(&dev->count_lock);
+ unlock_kernel();
+ return drm_lastclose(dev);
+ }
+ spin_unlock(&dev->count_lock);
+
+ unlock_kernel();
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_release);
+
+static bool
+drm_dequeue_event(struct drm_file *file_priv,
+ size_t total, size_t max, struct drm_pending_event **out)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e;
+ unsigned long flags;
+ bool ret = false;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ *out = NULL;
+ if (list_empty(&file_priv->event_list))
+ goto out;
+ e = list_first_entry(&file_priv->event_list,
+ struct drm_pending_event, link);
+ if (e->event->length + total > max)
+ goto out;
+
+ file_priv->event_space += e->event->length;
+ list_del(&e->link);
+ *out = e;
+ ret = true;
+
+out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ return ret;
+}
+
+ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_pending_event *e;
+ size_t total;
+ ssize_t ret;
+
+ ret = wait_event_interruptible(file_priv->event_wait,
+ !list_empty(&file_priv->event_list));
+ if (ret < 0)
+ return ret;
+
+ total = 0;
+ while (drm_dequeue_event(file_priv, total, count, &e)) {
+ if (copy_to_user(buffer + total,
+ e->event, e->event->length)) {
+ total = -EFAULT;
+ break;
+ }
+
+ total += e->event->length;
+ e->destroy(e);
+ }
+
+ return total;
+}
+EXPORT_SYMBOL(drm_read);
+
+unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(filp, &file_priv->event_wait, wait);
+
+ if (!list_empty(&file_priv->event_list))
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+EXPORT_SYMBOL(drm_poll);
--- /dev/null
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/mman.h>
+#include <linux/pagemap.h>
+#include "drmP.h"
+
+/** @file drm_gem.c
+ *
+ * This file provides some of the base ioctls and library routines for
+ * the graphics memory manager implemented by each device driver.
+ *
+ * Because various devices have different requirements in terms of
+ * synchronization and migration strategies, implementing that is left up to
+ * the driver, and all that the general API provides should be generic --
+ * allocating objects, reading/writing data with the cpu, freeing objects.
+ * Even there, platform-dependent optimizations for reading/writing data with
+ * the CPU mean we'll likely hook those out to driver-specific calls. However,
+ * the DRI2 implementation wants to have at least allocate/mmap be generic.
+ *
+ * The goal was to have swap-backed object allocation managed through
+ * struct file. However, file descriptors as handles to a struct file have
+ * two major failings:
+ * - Process limits prevent more than 1024 or so being used at a time by
+ * default.
+ * - Inability to allocate high fds will aggravate the X Server's select()
+ * handling, and likely that of many GL client applications as well.
+ *
+ * This led to a plan of using our own integer IDs (called handles, following
+ * DRM terminology) to mimic fds, and implement the fd syscalls we need as
+ * ioctls. The objects themselves will still include the struct file so
+ * that we can transition to fds if the required kernel infrastructure shows
+ * up at a later date, and as our interface with shmfs for memory allocation.
+ */
+
+/*
+ * We make up offsets for buffer objects so we can recognize them at
+ * mmap time.
+ */
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
+
+/**
+ * Initialize the GEM device fields
+ */
+
+int
+drm_gem_init(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm;
+
+ spin_lock_init(&dev->object_name_lock);
+ idr_init(&dev->object_name_idr);
+ atomic_set(&dev->object_count, 0);
+ atomic_set(&dev->object_memory, 0);
+ atomic_set(&dev->pin_count, 0);
+ atomic_set(&dev->pin_memory, 0);
+ atomic_set(&dev->gtt_count, 0);
+ atomic_set(&dev->gtt_memory, 0);
+
+ mm = kzalloc(sizeof(struct drm_gem_mm), GFP_KERNEL);
+ if (!mm) {
+ DRM_ERROR("out of memory\n");
+ return -ENOMEM;
+ }
+
+ dev->mm_private = mm;
+
+ if (drm_ht_create(&mm->offset_hash, 19)) {
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ if (drm_mm_init(&mm->offset_manager, DRM_FILE_PAGE_OFFSET_START,
+ DRM_FILE_PAGE_OFFSET_SIZE)) {
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void
+drm_gem_destroy(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm = dev->mm_private;
+
+ drm_mm_takedown(&mm->offset_manager);
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ dev->mm_private = NULL;
+}
+
+/**
+ * Allocate a GEM object of the specified size with shmfs backing store
+ */
+struct drm_gem_object *
+drm_gem_object_alloc(struct drm_device *dev, size_t size)
+{
+ struct drm_gem_object *obj;
+
+ BUG_ON((size & (PAGE_SIZE - 1)) != 0);
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ goto free;
+
+ obj->dev = dev;
+ obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
+ if (IS_ERR(obj->filp))
+ goto free;
+
+ /* Basically we want to disable the OOM killer and handle ENOMEM
+ * ourselves by sacrificing pages from cached buffers.
+ * XXX shmem_file_[gs]et_gfp_mask()
+ */
+ mapping_set_gfp_mask(obj->filp->f_path.dentry->d_inode->i_mapping,
+ GFP_HIGHUSER |
+ __GFP_COLD |
+ __GFP_FS |
+ __GFP_RECLAIMABLE |
+ __GFP_NORETRY |
+ __GFP_NOWARN |
+ __GFP_NOMEMALLOC);
+
+ kref_init(&obj->refcount);
+ kref_init(&obj->handlecount);
+ obj->size = size;
+ if (dev->driver->gem_init_object != NULL &&
+ dev->driver->gem_init_object(obj) != 0) {
+ goto fput;
+ }
+ atomic_inc(&dev->object_count);
+ atomic_add(obj->size, &dev->object_memory);
+ return obj;
+fput:
+ fput(obj->filp);
+free:
+ kfree(obj);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_gem_object_alloc);
+
+/**
+ * Removes the mapping from handle to filp for this object.
+ */
+static int
+drm_gem_handle_delete(struct drm_file *filp, u32 handle)
+{
+ struct drm_device *dev;
+ struct drm_gem_object *obj;
+
+ /* This is gross. The idr system doesn't let us try a delete and
+ * return an error code. It just spews if you fail at deleting.
+ * So, we have to grab a lock around finding the object and then
+ * doing the delete on it and dropping the refcount, or the user
+ * could race us to double-decrement the refcount and cause a
+ * use-after-free later. Given the frequency of our handle lookups,
+ * we may want to use ida for number allocation and a hash table
+ * for the pointers, anyway.
+ */
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return -EINVAL;
+ }
+ dev = obj->dev;
+
+ /* Release reference and decrement refcount. */
+ idr_remove(&filp->object_idr, handle);
+ spin_unlock(&filp->table_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_handle_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Create a handle for this object. This adds a handle reference
+ * to the object, which includes a regular reference count. Callers
+ * will likely want to dereference the object afterwards.
+ */
+int
+drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep)
+{
+ int ret;
+
+ /*
+ * Get the user-visible handle using idr.
+ */
+again:
+ /* ensure there is space available to allocate a handle */
+ if (idr_pre_get(&file_priv->object_idr, GFP_KERNEL) == 0)
+ return -ENOMEM;
+
+ /* do the allocation under our spinlock */
+ spin_lock(&file_priv->table_lock);
+ ret = idr_get_new_above(&file_priv->object_idr, obj, 1, (int *)handlep);
+ spin_unlock(&file_priv->table_lock);
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ return ret;
+
+ drm_gem_object_handle_reference(obj);
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_handle_create);
+
+/** Returns a reference to the object named by the handle. */
+struct drm_gem_object *
+drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
+ u32 handle)
+{
+ struct drm_gem_object *obj;
+
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return NULL;
+ }
+
+ drm_gem_object_reference(obj);
+
+ spin_unlock(&filp->table_lock);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_gem_object_lookup);
+
+/**
+ * Releases the handle to an mm object.
+ */
+int
+drm_gem_close_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_close *args = data;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ ret = drm_gem_handle_delete(file_priv, args->handle);
+
+ return ret;
+}
+
+/**
+ * Create a global name for an object, returning the name.
+ *
+ * Note that the name does not hold a reference; when the object
+ * is freed, the name goes away.
+ */
+int
+drm_gem_flink_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_flink *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (obj == NULL)
+ return -EBADF;
+
+again:
+ if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ spin_lock(&dev->object_name_lock);
+ if (!obj->name) {
+ ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
+ &obj->name);
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ goto err;
+
+ /* Allocate a reference for the name table. */
+ drm_gem_object_reference(obj);
+ } else {
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+ ret = 0;
+ }
+
+err:
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
+/**
+ * Open an object using the global name, returning a handle and the size.
+ *
+ * This handle (of course) holds a reference to the object, so the object
+ * will not go away until the handle is deleted.
+ */
+int
+drm_gem_open_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_open *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+ u32 handle;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ spin_lock(&dev->object_name_lock);
+ obj = idr_find(&dev->object_name_idr, (int) args->name);
+ if (obj)
+ drm_gem_object_reference(obj);
+ spin_unlock(&dev->object_name_lock);
+ if (!obj)
+ return -ENOENT;
+
+ ret = drm_gem_handle_create(file_priv, obj, &handle);
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+ args->size = obj->size;
+
+ return 0;
+}
+
+/**
+ * Called at device open time, sets up the structure for handling refcounting
+ * of mm objects.
+ */
+void
+drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_init(&file_private->object_idr);
+ spin_lock_init(&file_private->table_lock);
+}
+
+/**
+ * Called at device close to release the file's
+ * handle references on objects.
+ */
+static int
+drm_gem_object_release_handle(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+
+ drm_gem_object_handle_unreference(obj);
+
+ return 0;
+}
+
+/**
+ * Called at close time when the filp is going away.
+ *
+ * Releases any remaining references on objects by this filp.
+ */
+void
+drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_for_each(&file_private->object_idr,
+ &drm_gem_object_release_handle, NULL);
+
+ idr_destroy(&file_private->object_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Called after the last reference to the object has been lost.
+ *
+ * Frees the object
+ */
+void
+drm_gem_object_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = (struct drm_gem_object *) kref;
+ struct drm_device *dev = obj->dev;
+
+ BUG_ON(!mutex_is_locked(&dev->struct_mutex));
+
+ if (dev->driver->gem_free_object != NULL)
+ dev->driver->gem_free_object(obj);
+
+ fput(obj->filp);
+ atomic_dec(&dev->object_count);
+ atomic_sub(obj->size, &dev->object_memory);
+ kfree(obj);
+}
+EXPORT_SYMBOL(drm_gem_object_free);
+
+/**
+ * Called after the last handle to the object has been closed
+ *
+ * Removes any name for the object. Note that this must be
+ * called before drm_gem_object_free or we'll be touching
+ * freed memory
+ */
+void
+drm_gem_object_handle_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = container_of(kref,
+ struct drm_gem_object,
+ handlecount);
+ struct drm_device *dev = obj->dev;
+
+ /* Remove any name for this object */
+ spin_lock(&dev->object_name_lock);
+ if (obj->name) {
+ idr_remove(&dev->object_name_idr, obj->name);
+ obj->name = 0;
+ spin_unlock(&dev->object_name_lock);
+ /*
+ * The object name held a reference to this object, drop
+ * that now.
+ */
+ drm_gem_object_unreference(obj);
+ } else
+ spin_unlock(&dev->object_name_lock);
+
+}
+EXPORT_SYMBOL(drm_gem_object_handle_free);
+
+void drm_gem_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+
+ drm_gem_object_reference(obj);
+}
+EXPORT_SYMBOL(drm_gem_vm_open);
+
+void drm_gem_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+ struct drm_device *dev = obj->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_close);
+
+
+/**
+ * drm_gem_mmap - memory map routine for GEM objects
+ * @filp: DRM file pointer
+ * @vma: VMA for the area to be mapped
+ *
+ * If a driver supports GEM object mapping, mmap calls on the DRM file
+ * descriptor will end up here.
+ *
+ * If we find the object based on the offset passed in (vma->vm_pgoff will
+ * contain the fake offset we created when the GTT map ioctl was called on
+ * the object), we set up the driver fault handler so that any accesses
+ * to the object can be trapped, to perform migration, GTT binding, surface
+ * register allocation, or performance monitoring.
+ */
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_local_map *map = NULL;
+ struct drm_gem_object *obj;
+ struct drm_hash_item *hash;
+ int ret = 0;
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (drm_ht_find_item(&mm->offset_hash, vma->vm_pgoff, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return drm_mmap(filp, vma);
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map ||
+ ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) {
+ ret = -EPERM;
+ goto out_unlock;
+ }
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ obj = map->handle;
+ if (!obj->dev->driver->gem_vm_ops) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_ops = obj->dev->driver->gem_vm_ops;
+ vma->vm_private_data = map->handle;
+ vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+
+ /* Take a ref for this mapping of the object, so that the fault
+ * handler can dereference the mmap offset's pointer to the object.
+ * This reference is cleaned up by the corresponding vm_close
+ * (which should happen whether the vma was created by this call, or
+ * by a vm_open due to mremap or partial unmap or whatever).
+ */
+ drm_gem_object_reference(obj);
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_mmap);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple open hash tab implementation.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_hashtab.h"
+#include <linux/hash.h>
+
+int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
+{
+ unsigned int i;
+
+ ht->size = 1 << order;
+ ht->order = order;
+ ht->fill = 0;
+ ht->table = NULL;
+ ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE);
+ if (!ht->use_vmalloc) {
+ ht->table = kcalloc(ht->size, sizeof(*ht->table), GFP_KERNEL);
+ }
+ if (!ht->table) {
+ ht->use_vmalloc = 1;
+ ht->table = vmalloc(ht->size*sizeof(*ht->table));
+ }
+ if (!ht->table) {
+ DRM_ERROR("Out of memory for hash table\n");
+ return -ENOMEM;
+ }
+ for (i=0; i< ht->size; ++i) {
+ INIT_HLIST_HEAD(&ht->table[i]);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_create);
+
+void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+ int count = 0;
+
+ hashed_key = hash_long(key, ht->order);
+ DRM_DEBUG("Key is 0x%08lx, Hashed key is 0x%08x\n", key, hashed_key);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ DRM_DEBUG("count %d, key: 0x%08lx\n", count++, entry->key);
+ }
+}
+
+static struct hlist_node *drm_ht_find_key(struct drm_open_hash *ht,
+ unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return list;
+ if (entry->key > key)
+ break;
+ }
+ return NULL;
+}
+
+
+int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list, *parent;
+ unsigned int hashed_key;
+ unsigned long key = item->key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ parent = NULL;
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return -EINVAL;
+ if (entry->key > key)
+ break;
+ parent = list;
+ }
+ if (parent) {
+ hlist_add_after(parent, &item->head);
+ } else {
+ hlist_add_head(&item->head, h_list);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_insert_item);
+
+/*
+ * Just insert an item and return any "bits" bit key that hasn't been
+ * used before.
+ */
+int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
+ unsigned long seed, int bits, int shift,
+ unsigned long add)
+{
+ int ret;
+ unsigned long mask = (1 << bits) - 1;
+ unsigned long first, unshifted_key;
+
+ unshifted_key = hash_long(seed, bits);
+ first = unshifted_key;
+ do {
+ item->key = (unshifted_key << shift) + add;
+ ret = drm_ht_insert_item(ht, item);
+ if (ret)
+ unshifted_key = (unshifted_key + 1) & mask;
+ } while(ret && (unshifted_key != first));
+
+ if (ret) {
+ DRM_ERROR("Available key bit space exhausted\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_just_insert_please);
+
+int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key,
+ struct drm_hash_item **item)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (!list)
+ return -EINVAL;
+
+ *item = hlist_entry(list, struct drm_hash_item, head);
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_find_item);
+
+int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (list) {
+ hlist_del_init(list);
+ ht->fill--;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ hlist_del_init(&item->head);
+ ht->fill--;
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_remove_item);
+
+void drm_ht_remove(struct drm_open_hash *ht)
+{
+ if (ht->table) {
+ if (ht->use_vmalloc)
+ vfree(ht->table);
+ else
+ kfree(ht->table);
+ ht->table = NULL;
+ }
+}
+EXPORT_SYMBOL(drm_ht_remove);
--- /dev/null
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_minor *minor = node->minor;
+ struct drm_device *dev = minor->dev;
+ struct drm_master *master = minor->master;
+
+ if (!master)
+ return 0;
+
+ if (master->unique) {
+ seq_printf(m, "%s %s %s\n",
+ dev->driver->pci_driver.name,
+ pci_name(dev->pdev), master->unique);
+ } else {
+ seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+ pci_name(dev->pdev));
+ }
+
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+ _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+ const char *type;
+ int i;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "slot offset size type flags address mtrr\n\n");
+ i = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ map = r_list->map;
+ if (!map)
+ continue;
+ if (map->type < 0 || map->type > 5)
+ type = "??";
+ else
+ type = types[map->type];
+
+ seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ (unsigned long long)map->offset,
+ map->size, type, map->flags,
+ (unsigned long) r_list->user_token);
+ if (map->mtrr < 0)
+ seq_printf(m, "none\n");
+ else
+ seq_printf(m, "%4d\n", map->mtrr);
+ i++;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../queues" is read.
+ */
+int drm_queues_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int i;
+ struct drm_queue *q;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, " ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
+ for (i = 0; i < dev->queue_count; i++) {
+ q = dev->queuelist[i];
+ atomic_inc(&q->use_count);
+ seq_printf(m, "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count),
+ atomic_read(&q->block_read) ? 'r' : '-',
+ atomic_read(&q->block_write) ? 'w' : '-',
+ waitqueue_active(&q->read_queue) ? 'r' : '-',
+ waitqueue_active(&q->write_queue) ? 'w' : '-',
+ waitqueue_active(&q->flush_queue) ? 'f' : '-',
+ DRM_BUFCOUNT(&q->waitlist));
+ atomic_dec(&q->use_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_device_dma *dma;
+ int i, seg_pages;
+
+ mutex_lock(&dev->struct_mutex);
+ dma = dev->dma;
+ if (!dma) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ seq_printf(m, " o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count) {
+ seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+ seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i].freelist.count),
+ dma->bufs[i].seg_count,
+ seg_pages,
+ seg_pages * PAGE_SIZE / 1024);
+ }
+ }
+ seq_printf(m, "\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i % 32))
+ seq_printf(m, "\n");
+ seq_printf(m, " %d", dma->buflist[i]->list);
+ }
+ seq_printf(m, "\n");
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int crtc;
+
+ mutex_lock(&dev->struct_mutex);
+ for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+ seq_printf(m, "CRTC %d enable: %d\n",
+ crtc, atomic_read(&dev->vblank_refcount[crtc]));
+ seq_printf(m, "CRTC %d counter: %d\n",
+ crtc, drm_vblank_count(dev, crtc));
+ seq_printf(m, "CRTC %d last wait: %d\n",
+ crtc, dev->last_vblank_wait[crtc]);
+ seq_printf(m, "CRTC %d in modeset: %d\n",
+ crtc, dev->vblank_inmodeset[crtc]);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *priv;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "a dev pid uid magic ioctls\n\n");
+ list_for_each_entry(priv, &dev->filelist, lhead) {
+ seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor->index,
+ priv->pid,
+ priv->uid, priv->magic, priv->ioctl_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+
+int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+ struct seq_file *m = data;
+
+ seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ atomic_read(&obj->handlecount.refcount),
+ atomic_read(&obj->refcount.refcount));
+ return 0;
+}
+
+int drm_gem_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, " name size handles refcount\n");
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ return 0;
+}
+
+int drm_gem_object_info(struct seq_file *m, void* data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
+ seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
+ seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
+ seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
+ seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
+ seq_printf(m, "%d gtt total\n", dev->gtt_total);
+ return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_vma_entry *pt;
+ struct vm_area_struct *vma;
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08llx\n",
+ atomic_read(&dev->vma_count),
+ high_memory, (u64)virt_to_phys(high_memory));
+
+ list_for_each_entry(pt, &dev->vmalist, head) {
+ vma = pt->vma;
+ if (!vma)
+ continue;
+ seq_printf(m,
+ "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
+ pt->pid, vma->vm_start, vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ vma->vm_pgoff);
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+ seq_printf(m, "\n");
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+#endif
+
--- /dev/null
+/**
+ * \file drm_ioctl.c
+ * IOCTL processing for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#include "linux/pci.h"
+
+/**
+ * Get the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from drm_device::unique into user space.
+ */
+int drm_getunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+
+ if (u->unique_len >= master->unique_len) {
+ if (copy_to_user(u->unique, master->unique, master->unique_len))
+ return -EFAULT;
+ }
+ u->unique_len = master->unique_len;
+
+ return 0;
+}
+
+/**
+ * Set the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from userspace into drm_device::unique, and verifies that
+ * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated
+ * in interface version 1.1 and will return EBUSY when setversion has requested
+ * version 1.1 or greater.
+ */
+int drm_setunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+ int domain, bus, slot, func, ret;
+
+ if (master->unique_len || master->unique)
+ return -EBUSY;
+
+ if (!u->unique_len || u->unique_len > 1024)
+ return -EINVAL;
+
+ master->unique_len = u->unique_len;
+ master->unique_size = u->unique_len + 1;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (!master->unique)
+ return -ENOMEM;
+ if (copy_from_user(master->unique, u->unique, master->unique_len))
+ return -EFAULT;
+
+ master->unique[master->unique_len] = '\0';
+
+ dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
+ strlen(master->unique) + 2, GFP_KERNEL);
+ if (!dev->devname)
+ return -ENOMEM;
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+
+ /* Return error if the busid submitted doesn't match the device's actual
+ * busid.
+ */
+ ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
+ if (ret != 3)
+ return -EINVAL;
+ domain = bus >> 8;
+ bus &= 0xff;
+
+ if ((domain != drm_get_pci_domain(dev)) ||
+ (bus != dev->pdev->bus->number) ||
+ (slot != PCI_SLOT(dev->pdev->devfn)) ||
+ (func != PCI_FUNC(dev->pdev->devfn)))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ int len;
+
+ if (master->unique != NULL)
+ return -EBUSY;
+
+ master->unique_len = 40;
+ master->unique_size = master->unique_len;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (master->unique == NULL)
+ return -ENOMEM;
+
+ len = snprintf(master->unique, master->unique_len, "pci:%04x:%02x:%02x.%d",
+ drm_get_pci_domain(dev),
+ dev->pdev->bus->number,
+ PCI_SLOT(dev->pdev->devfn),
+ PCI_FUNC(dev->pdev->devfn));
+ if (len >= master->unique_len)
+ DRM_ERROR("buffer overflow");
+ else
+ master->unique_len = len;
+
+ dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
+ master->unique_len + 2, GFP_KERNEL);
+ if (dev->devname == NULL)
+ return -ENOMEM;
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+
+ return 0;
+}
+
+/**
+ * Get a mapping information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_map structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the mapping with the specified offset and copies its information
+ * into userspace
+ */
+int drm_getmap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ idx = map->offset;
+
+ mutex_lock(&dev->struct_mutex);
+ if (idx < 0) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist) {
+ if (i == idx) {
+ r_list = list_entry(list, struct drm_map_list, head);
+ break;
+ }
+ i++;
+ }
+ if (!r_list || !r_list->map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ map->offset = r_list->map->offset;
+ map->size = r_list->map->size;
+ map->type = r_list->map->type;
+ map->flags = r_list->map->flags;
+ map->handle = (void *)(unsigned long) r_list->user_token;
+ map->mtrr = r_list->map->mtrr;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Get client information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_client structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the client with the specified index and copies its information
+ * into userspace
+ */
+int drm_getclient(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_client *client = data;
+ struct drm_file *pt;
+ int idx;
+ int i;
+
+ idx = client->idx;
+ mutex_lock(&dev->struct_mutex);
+
+ i = 0;
+ list_for_each_entry(pt, &dev->filelist, lhead) {
+ if (i++ >= idx) {
+ client->auth = pt->authenticated;
+ client->pid = pt->pid;
+ client->uid = pt->uid;
+ client->magic = pt->magic;
+ client->iocs = pt->ioctl_count;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return -EINVAL;
+}
+
+/**
+ * Get statistics information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_stats structure.
+ *
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getstats(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_stats *stats = data;
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+
+ mutex_lock(&dev->struct_mutex);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats->data[i].value =
+ (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
+ else
+ stats->data[i].value = atomic_read(&dev->counts[i]);
+ stats->data[i].type = dev->types[i];
+ }
+
+ stats->count = dev->counters;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Setversion ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Sets the requested interface version
+ */
+int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_set_version *sv = data;
+ int if_version, retcode = 0;
+
+ if (sv->drm_di_major != -1) {
+ if (sv->drm_di_major != DRM_IF_MAJOR ||
+ sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ if_version = DRM_IF_VERSION(sv->drm_di_major,
+ sv->drm_di_minor);
+ dev->if_version = max(if_version, dev->if_version);
+ if (sv->drm_di_minor >= 1) {
+ /*
+ * Version 1.1 includes tying of DRM to specific device
+ */
+ drm_set_busid(dev, file_priv);
+ }
+ }
+
+ if (sv->drm_dd_major != -1) {
+ if (sv->drm_dd_major != dev->driver->major ||
+ sv->drm_dd_minor < 0 || sv->drm_dd_minor >
+ dev->driver->minor) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ if (dev->driver->set_version)
+ dev->driver->set_version(dev, sv);
+ }
+
+done:
+ sv->drm_di_major = DRM_IF_MAJOR;
+ sv->drm_di_minor = DRM_IF_MINOR;
+ sv->drm_dd_major = dev->driver->major;
+ sv->drm_dd_minor = dev->driver->minor;
+
+ return retcode;
+}
+
+/** No-op ioctl. */
+int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+ return 0;
+}
--- /dev/null
+/**
+ * \file drm_irq.c
+ * IRQ support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+#include <linux/interrupt.h> /* For task queue support */
+
+#include <linux/vgaarb.h>
+/**
+ * Get interrupt from bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_irq_busid structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Finds the PCI device with the specified bus id and gets its IRQ number.
+ * This IOCTL is deprecated, and will now return EINVAL for any busid not equal
+ * to that of the device that this DRM instance attached to.
+ */
+int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_irq_busid *p = data;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
+ (p->busnum & 0xff) != dev->pdev->bus->number ||
+ p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
+ return -EINVAL;
+
+ p->irq = dev->pdev->irq;
+
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
+ p->irq);
+
+ return 0;
+}
+
+static void vblank_disable_fn(unsigned long arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ unsigned long irqflags;
+ int i;
+
+ if (!dev->vblank_disable_allowed)
+ return;
+
+ for (i = 0; i < dev->num_crtcs; i++) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
+ dev->vblank_enabled[i]) {
+ DRM_DEBUG("disabling vblank on crtc %d\n", i);
+ dev->last_vblank[i] =
+ dev->driver->get_vblank_counter(dev, i);
+ dev->driver->disable_vblank(dev, i);
+ dev->vblank_enabled[i] = 0;
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ }
+}
+
+void drm_vblank_cleanup(struct drm_device *dev)
+{
+ /* Bail if the driver didn't call drm_vblank_init() */
+ if (dev->num_crtcs == 0)
+ return;
+
+ del_timer(&dev->vblank_disable_timer);
+
+ vblank_disable_fn((unsigned long)dev);
+
+ kfree(dev->vbl_queue);
+ kfree(dev->_vblank_count);
+ kfree(dev->vblank_refcount);
+ kfree(dev->vblank_enabled);
+ kfree(dev->last_vblank);
+ kfree(dev->last_vblank_wait);
+ kfree(dev->vblank_inmodeset);
+
+ dev->num_crtcs = 0;
+}
+
+int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+{
+ int i, ret = -ENOMEM;
+
+ setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
+ (unsigned long)dev);
+ spin_lock_init(&dev->vbl_lock);
+ dev->num_crtcs = num_crtcs;
+
+ dev->vbl_queue = kmalloc(sizeof(wait_queue_head_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vbl_queue)
+ goto err;
+
+ dev->_vblank_count = kmalloc(sizeof(atomic_t) * num_crtcs, GFP_KERNEL);
+ if (!dev->_vblank_count)
+ goto err;
+
+ dev->vblank_refcount = kmalloc(sizeof(atomic_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vblank_refcount)
+ goto err;
+
+ dev->vblank_enabled = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_enabled)
+ goto err;
+
+ dev->last_vblank = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank)
+ goto err;
+
+ dev->last_vblank_wait = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank_wait)
+ goto err;
+
+ dev->vblank_inmodeset = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_inmodeset)
+ goto err;
+
+ /* Zero per-crtc vblank stuff */
+ for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
+ atomic_set(&dev->_vblank_count[i], 0);
+ atomic_set(&dev->vblank_refcount[i], 0);
+ }
+
+ dev->vblank_disable_allowed = 0;
+
+ return 0;
+
+err:
+ drm_vblank_cleanup(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_init);
+
+static void drm_irq_vgaarb_nokms(void *cookie, bool state)
+{
+ struct drm_device *dev = cookie;
+
+ if (dev->driver->vgaarb_irq) {
+ dev->driver->vgaarb_irq(dev, state);
+ return;
+ }
+
+ if (!dev->irq_enabled)
+ return;
+
+ if (state)
+ dev->driver->irq_uninstall(dev);
+ else {
+ dev->driver->irq_preinstall(dev);
+ dev->driver->irq_postinstall(dev);
+ }
+}
+
+/**
+ * Install IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Initializes the IRQ related data. Installs the handler, calling the driver
+ * \c drm_driver_irq_preinstall() and \c drm_driver_irq_postinstall() functions
+ * before and after the installation.
+ */
+int drm_irq_install(struct drm_device *dev)
+{
+ int ret = 0;
+ unsigned long sh_flags = 0;
+ char *irqname;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if (dev->pdev->irq == 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Driver must have been initialized */
+ if (!dev->dev_private) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ if (dev->irq_enabled) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EBUSY;
+ }
+ dev->irq_enabled = 1;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
+
+ /* Before installing handler */
+ dev->driver->irq_preinstall(dev);
+
+ /* Install handler */
+ if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
+ sh_flags = IRQF_SHARED;
+
+ if (dev->devname)
+ irqname = dev->devname;
+ else
+ irqname = dev->driver->name;
+
+ ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
+ sh_flags, irqname, dev);
+
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);
+
+ /* After installing handler */
+ ret = dev->driver->irq_postinstall(dev);
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_irq_install);
+
+/**
+ * Uninstall the IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Calls the driver's \c drm_driver_irq_uninstall() function, and stops the irq.
+ */
+int drm_irq_uninstall(struct drm_device * dev)
+{
+ unsigned long irqflags;
+ int irq_enabled, i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ irq_enabled = dev->irq_enabled;
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+
+ /*
+ * Wake up any waiters so they don't hang.
+ */
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ for (i = 0; i < dev->num_crtcs; i++) {
+ DRM_WAKEUP(&dev->vbl_queue[i]);
+ dev->vblank_enabled[i] = 0;
+ dev->last_vblank[i] = dev->driver->get_vblank_counter(dev, i);
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (!irq_enabled)
+ return -EINVAL;
+
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
+
+ dev->driver->irq_uninstall(dev);
+
+ free_irq(dev->pdev->irq, dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_irq_uninstall);
+
+/**
+ * IRQ control ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_control structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls irq_install() or irq_uninstall() according to \p arg.
+ */
+int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_control *ctl = data;
+
+ /* if we haven't irq we fallback for compatibility reasons - this used to be a separate function in drm_dma.h */
+
+
+ switch (ctl->func) {
+ case DRM_INST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ if (dev->if_version < DRM_IF_VERSION(1, 2) &&
+ ctl->irq != dev->pdev->irq)
+ return -EINVAL;
+ return drm_irq_install(dev);
+ case DRM_UNINST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ return drm_irq_uninstall(dev);
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * drm_vblank_count - retrieve "cooked" vblank counter value
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity.
+ */
+u32 drm_vblank_count(struct drm_device *dev, int crtc)
+{
+ return atomic_read(&dev->_vblank_count[crtc]);
+}
+EXPORT_SYMBOL(drm_vblank_count);
+
+/**
+ * drm_update_vblank_count - update the master vblank counter
+ * @dev: DRM device
+ * @crtc: counter to update
+ *
+ * Call back into the driver to update the appropriate vblank counter
+ * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * update the last read value so we can deal with wraparound on the next
+ * call if necessary.
+ *
+ * Only necessary when going from off->on, to account for frames we
+ * didn't get an interrupt for.
+ *
+ * Note: caller must hold dev->vbl_lock since this reads & writes
+ * device vblank fields.
+ */
+static void drm_update_vblank_count(struct drm_device *dev, int crtc)
+{
+ u32 cur_vblank, diff;
+
+ /*
+ * Interrupts were disabled prior to this call, so deal with counter
+ * wrap if needed.
+ * NOTE! It's possible we lost a full dev->max_vblank_count events
+ * here if the register is small or we had vblank interrupts off for
+ * a long time.
+ */
+ cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
+ diff = cur_vblank - dev->last_vblank[crtc];
+ if (cur_vblank < dev->last_vblank[crtc]) {
+ diff += dev->max_vblank_count;
+
+ DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
+ crtc, dev->last_vblank[crtc], cur_vblank, diff);
+ }
+
+ DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n",
+ crtc, diff);
+
+ atomic_add(diff, &dev->_vblank_count[crtc]);
+}
+
+/**
+ * drm_vblank_get - get a reference count on vblank events
+ * @dev: DRM device
+ * @crtc: which CRTC to own
+ *
+ * Acquire a reference count on vblank events to avoid having them disabled
+ * while in use.
+ *
+ * RETURNS
+ * Zero on success, nonzero on failure.
+ */
+int drm_vblank_get(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ /* Going from 0->1 means we have to enable interrupts again */
+ if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
+ if (!dev->vblank_enabled[crtc]) {
+ ret = dev->driver->enable_vblank(dev, crtc);
+ DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n", crtc, ret);
+ if (ret)
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ else {
+ dev->vblank_enabled[crtc] = 1;
+ drm_update_vblank_count(dev, crtc);
+ }
+ }
+ } else {
+ if (!dev->vblank_enabled[crtc]) {
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ ret = -EINVAL;
+ }
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_get);
+
+/**
+ * drm_vblank_put - give up ownership of vblank events
+ * @dev: DRM device
+ * @crtc: which counter to give up
+ *
+ * Release ownership of a given vblank counter, turning off interrupts
+ * if possible.
+ */
+void drm_vblank_put(struct drm_device *dev, int crtc)
+{
+ BUG_ON (atomic_read (&dev->vblank_refcount[crtc]) == 0);
+
+ /* Last user schedules interrupt disable */
+ if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
+ mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ);
+}
+EXPORT_SYMBOL(drm_vblank_put);
+
+void drm_vblank_off(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ dev->vblank_enabled[crtc] = 0;
+ dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc);
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+}
+EXPORT_SYMBOL(drm_vblank_off);
+
+/**
+ * drm_vblank_pre_modeset - account for vblanks across mode sets
+ * @dev: DRM device
+ * @crtc: CRTC in question
+ * @post: post or pre mode set?
+ *
+ * Account for vblank events across mode setting events, which will likely
+ * reset the hardware frame counter.
+ */
+void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
+{
+ /*
+ * To avoid all the problems that might happen if interrupts
+ * were enabled/disabled around or between these calls, we just
+ * have the kernel take a reference on the CRTC (just once though
+ * to avoid corrupting the count if multiple, mismatch calls occur),
+ * so that interrupts remain enabled in the interim.
+ */
+ if (!dev->vblank_inmodeset[crtc]) {
+ dev->vblank_inmodeset[crtc] = 0x1;
+ if (drm_vblank_get(dev, crtc) == 0)
+ dev->vblank_inmodeset[crtc] |= 0x2;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_pre_modeset);
+
+void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ if (dev->vblank_inmodeset[crtc]) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ dev->vblank_disable_allowed = 1;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (dev->vblank_inmodeset[crtc] & 0x2)
+ drm_vblank_put(dev, crtc);
+
+ dev->vblank_inmodeset[crtc] = 0;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_post_modeset);
+
+/**
+ * drm_modeset_ctl - handle vblank event counter changes across mode switch
+ * @DRM_IOCTL_ARGS: standard ioctl arguments
+ *
+ * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
+ * ioctls around modesetting so that any lost vblank events are accounted for.
+ *
+ * Generally the counter will reset across mode sets. If interrupts are
+ * enabled around this call, we don't have to do anything since the counter
+ * will have already been incremented.
+ */
+int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_modeset_ctl *modeset = data;
+ int crtc, ret = 0;
+
+ /* If drm_vblank_init() hasn't been called yet, just no-op */
+ if (!dev->num_crtcs)
+ goto out;
+
+ crtc = modeset->crtc;
+ if (crtc >= dev->num_crtcs) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (modeset->cmd) {
+ case _DRM_PRE_MODESET:
+ drm_vblank_pre_modeset(dev, crtc);
+ break;
+ case _DRM_POST_MODESET:
+ drm_vblank_post_modeset(dev, crtc);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ return ret;
+}
+
+static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
+ union drm_wait_vblank *vblwait,
+ struct drm_file *file_priv)
+{
+ struct drm_pending_vblank_event *e;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL)
+ return -ENOMEM;
+
+ e->pipe = pipe;
+ e->event.base.type = DRM_EVENT_VBLANK;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = vblwait->request.signal;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+ do_gettimeofday(&now);
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ return -ENOMEM;
+ }
+
+ file_priv->event_space -= sizeof e->event;
+ seq = drm_vblank_count(dev, pipe);
+ if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1 << 23)) {
+ vblwait->request.sequence = seq + 1;
+ vblwait->reply.sequence = vblwait->request.sequence;
+ }
+
+ DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
+ vblwait->request.sequence, seq, pipe);
+
+ e->event.sequence = vblwait->request.sequence;
+ if ((seq - vblwait->request.sequence) <= (1 << 23)) {
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_add_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ } else {
+ list_add_tail(&e->base.link, &dev->vblank_event_list);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return 0;
+}
+
+/**
+ * Wait for VBLANK.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param data user argument, pointing to a drm_wait_vblank structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * This function enables the vblank interrupt on the pipe requested, then
+ * sleeps waiting for the requested sequence number to occur, and drops
+ * the vblank interrupt refcount afterwards. (vblank irq disable follows that
+ * after a timeout with no further vblank waits scheduled).
+ */
+int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ union drm_wait_vblank *vblwait = data;
+ int ret = 0;
+ unsigned int flags, seq, crtc;
+
+ if ((!dev->pdev->irq) || (!dev->irq_enabled))
+ return -EINVAL;
+
+ if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
+ return -EINVAL;
+
+ if (vblwait->request.type &
+ ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) {
+ DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
+ vblwait->request.type,
+ (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK));
+ return -EINVAL;
+ }
+
+ flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
+ crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
+
+ if (crtc >= dev->num_crtcs)
+ return -EINVAL;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret) {
+ DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
+ return ret;
+ }
+ seq = drm_vblank_count(dev, crtc);
+
+ switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
+ case _DRM_VBLANK_RELATIVE:
+ vblwait->request.sequence += seq;
+ vblwait->request.type &= ~_DRM_VBLANK_RELATIVE;
+ case _DRM_VBLANK_ABSOLUTE:
+ break;
+ default:
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (flags & _DRM_VBLANK_EVENT)
+ return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
+
+ if ((flags & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1<<23)) {
+ vblwait->request.sequence = seq + 1;
+ }
+
+ DRM_DEBUG("waiting on vblank count %d, crtc %d\n",
+ vblwait->request.sequence, crtc);
+ dev->last_vblank_wait[crtc] = vblwait->request.sequence;
+ DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
+ (((drm_vblank_count(dev, crtc) -
+ vblwait->request.sequence) <= (1 << 23)) ||
+ !dev->irq_enabled));
+
+ if (ret != -EINTR) {
+ struct timeval now;
+
+ do_gettimeofday(&now);
+
+ vblwait->reply.tval_sec = now.tv_sec;
+ vblwait->reply.tval_usec = now.tv_usec;
+ vblwait->reply.sequence = drm_vblank_count(dev, crtc);
+ DRM_DEBUG("returning %d to client\n",
+ vblwait->reply.sequence);
+ } else {
+ DRM_DEBUG("vblank wait interrupted by signal\n");
+ }
+
+done:
+ drm_vblank_put(dev, crtc);
+ return ret;
+}
+
+void drm_handle_vblank_events(struct drm_device *dev, int crtc)
+{
+ struct drm_pending_vblank_event *e, *t;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+
+ do_gettimeofday(&now);
+ seq = drm_vblank_count(dev, crtc);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
+ if (e->pipe != crtc)
+ continue;
+ if ((seq - e->event.sequence) > (1<<23))
+ continue;
+
+ DRM_DEBUG("vblank event on %d, current %d\n",
+ e->event.sequence, seq);
+
+ e->event.sequence = seq;
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * drm_handle_vblank - handle a vblank event
+ * @dev: DRM device
+ * @crtc: where this event occurred
+ *
+ * Drivers should call this routine in their vblank interrupt handlers to
+ * update the vblank counter and send any signals that may be pending.
+ */
+void drm_handle_vblank(struct drm_device *dev, int crtc)
+{
+ if (!dev->num_crtcs)
+ return;
+
+ atomic_inc(&dev->_vblank_count[crtc]);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ drm_handle_vblank_events(dev, crtc);
+}
+EXPORT_SYMBOL(drm_handle_vblank);
--- /dev/null
+/**
+ * \file drm_lock.c
+ * IOCTLs for locking
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+static int drm_notifier(void *priv);
+
+/**
+ * Lock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Add the current task to the lock wait queue, and attempt to take to lock.
+ */
+int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ DECLARE_WAITQUEUE(entry, current);
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+ int ret = 0;
+
+ ++file_priv->lock_count;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock->context, task_pid_nr(current),
+ master->lock.hw_lock->lock, lock->flags);
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE))
+ if (lock->context < 0)
+ return -EINVAL;
+
+ add_wait_queue(&master->lock.lock_queue, &entry);
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters++;
+ spin_unlock_bh(&master->lock.spinlock);
+
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ if (!master->lock.hw_lock) {
+ /* Device has been unregistered */
+ send_sig(SIGTERM, current, 0);
+ ret = -EINTR;
+ break;
+ }
+ if (drm_lock_take(&master->lock, lock->context)) {
+ master->lock.file_priv = file_priv;
+ master->lock.lock_time = jiffies;
+ atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ schedule();
+ if (signal_pending(current)) {
+ ret = -EINTR;
+ break;
+ }
+ }
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters--;
+ spin_unlock_bh(&master->lock.spinlock);
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&master->lock.lock_queue, &entry);
+
+ DRM_DEBUG("%d %s\n", lock->context,
+ ret ? "interrupted" : "has lock");
+ if (ret) return ret;
+
+ /* don't set the block all signals on the master process for now
+ * really probably not the correct answer but lets us debug xkb
+ * xserver for now */
+ if (!file_priv->is_master) {
+ sigemptyset(&dev->sigmask);
+ sigaddset(&dev->sigmask, SIGSTOP);
+ sigaddset(&dev->sigmask, SIGTSTP);
+ sigaddset(&dev->sigmask, SIGTTIN);
+ sigaddset(&dev->sigmask, SIGTTOU);
+ dev->sigdata.context = lock->context;
+ dev->sigdata.lock = master->lock.hw_lock;
+ block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
+ }
+
+ if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY))
+ dev->driver->dma_ready(dev);
+
+ if (dev->driver->dma_quiescent && (lock->flags & _DRM_LOCK_QUIESCENT))
+ {
+ if (dev->driver->dma_quiescent(dev)) {
+ DRM_DEBUG("%d waiting for DMA quiescent\n",
+ lock->context);
+ return -EBUSY;
+ }
+ }
+
+ if (dev->driver->kernel_context_switch &&
+ dev->last_context != lock->context) {
+ dev->driver->kernel_context_switch(dev, dev->last_context,
+ lock->context);
+ }
+
+ return 0;
+}
+
+/**
+ * Unlock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Transfer and free the lock.
+ */
+int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
+
+ /* kernel_context_switch isn't used by any of the x86 drm
+ * modules but is required by the Sparc driver.
+ */
+ if (dev->driver->kernel_context_switch_unlock)
+ dev->driver->kernel_context_switch_unlock(dev);
+ else {
+ if (drm_lock_free(&master->lock, lock->context)) {
+ /* FIXME: Should really bail out here. */
+ }
+ }
+
+ unblock_all_signals();
+ return 0;
+}
+
+/**
+ * Take the heavyweight lock.
+ *
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return one if the lock is held, or zero otherwise.
+ *
+ * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+int drm_lock_take(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ do {
+ old = *lock;
+ if (old & _DRM_LOCK_HELD)
+ new = old | _DRM_LOCK_CONT;
+ else {
+ new = context | _DRM_LOCK_HELD |
+ ((lock_data->user_waiters + lock_data->kernel_waiters > 1) ?
+ _DRM_LOCK_CONT : 0);
+ }
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ spin_unlock_bh(&lock_data->spinlock);
+
+ if (_DRM_LOCKING_CONTEXT(old) == context) {
+ if (old & _DRM_LOCK_HELD) {
+ if (context != DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("%d holds heavyweight lock\n",
+ context);
+ }
+ return 0;
+ }
+ }
+
+ if ((_DRM_LOCKING_CONTEXT(new)) == context && (new & _DRM_LOCK_HELD)) {
+ /* Have lock */
+ return 1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_lock_take);
+
+/**
+ * This takes a lock forcibly and hands it to context. Should ONLY be used
+ * inside *_unlock to give lock to kernel before calling *_dma_schedule.
+ *
+ * \param dev DRM device.
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return always one.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+static int drm_lock_transfer(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ lock_data->file_priv = NULL;
+ do {
+ old = *lock;
+ new = context | _DRM_LOCK_HELD;
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ return 1;
+}
+
+/**
+ * Free lock.
+ *
+ * \param dev DRM device.
+ * \param lock lock.
+ * \param context context.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task
+ * waiting on the lock queue.
+ */
+int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (lock_data->kernel_waiters != 0) {
+ drm_lock_transfer(lock_data, 0);
+ lock_data->idle_has_lock = 1;
+ spin_unlock_bh(&lock_data->spinlock);
+ return 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+
+ do {
+ old = *lock;
+ new = _DRM_LOCKING_CONTEXT(old);
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+
+ if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
+ DRM_ERROR("%d freed heavyweight lock held by %d\n",
+ context, _DRM_LOCKING_CONTEXT(old));
+ return 1;
+ }
+ wake_up_interruptible(&lock_data->lock_queue);
+ return 0;
+}
+EXPORT_SYMBOL(drm_lock_free);
+
+/**
+ * If we get here, it means that the process has called DRM_IOCTL_LOCK
+ * without calling DRM_IOCTL_UNLOCK.
+ *
+ * If the lock is not held, then let the signal proceed as usual. If the lock
+ * is held, then set the contended flag and keep the signal blocked.
+ *
+ * \param priv pointer to a drm_sigdata structure.
+ * \return one if the signal should be delivered normally, or zero if the
+ * signal should be blocked.
+ */
+static int drm_notifier(void *priv)
+{
+ struct drm_sigdata *s = (struct drm_sigdata *) priv;
+ unsigned int old, new, prev;
+
+ /* Allow signal delivery if lock isn't held */
+ if (!s->lock || !_DRM_LOCK_IS_HELD(s->lock->lock)
+ || _DRM_LOCKING_CONTEXT(s->lock->lock) != s->context)
+ return 1;
+
+ /* Otherwise, set flag to force call to
+ drmUnlock */
+ do {
+ old = s->lock->lock;
+ new = old | _DRM_LOCK_CONT;
+ prev = cmpxchg(&s->lock->lock, old, new);
+ } while (prev != old);
+ return 0;
+}
+
+/**
+ * This function returns immediately and takes the hw lock
+ * with the kernel context if it is free, otherwise it gets the highest priority when and if
+ * it is eventually released.
+ *
+ * This guarantees that the kernel will _eventually_ have the lock _unless_ it is held
+ * by a blocked process. (In the latter case an explicit wait for the hardware lock would cause
+ * a deadlock, which is why the "idlelock" was invented).
+ *
+ * This should be sufficient to wait for GPU idle without
+ * having to worry about starvation.
+ */
+
+void drm_idlelock_take(struct drm_lock_data *lock_data)
+{
+ int ret = 0;
+
+ spin_lock_bh(&lock_data->spinlock);
+ lock_data->kernel_waiters++;
+ if (!lock_data->idle_has_lock) {
+
+ spin_unlock_bh(&lock_data->spinlock);
+ ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT);
+ spin_lock_bh(&lock_data->spinlock);
+
+ if (ret == 1)
+ lock_data->idle_has_lock = 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+EXPORT_SYMBOL(drm_idlelock_take);
+
+void drm_idlelock_release(struct drm_lock_data *lock_data)
+{
+ unsigned int old, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (--lock_data->kernel_waiters == 0) {
+ if (lock_data->idle_has_lock) {
+ do {
+ old = *lock;
+ prev = cmpxchg(lock, old, DRM_KERNEL_CONTEXT);
+ } while (prev != old);
+ wake_up_interruptible(&lock_data->lock_queue);
+ lock_data->idle_has_lock = 0;
+ }
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+EXPORT_SYMBOL(drm_idlelock_release);
+
+
+int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ return (file_priv->lock_count && master->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) &&
+ master->lock.file_priv == file_priv);
+}
+
+EXPORT_SYMBOL(drm_i_have_hw_lock);
--- /dev/null
+/**
+ * \file drm_memory.c
+ * Memory management wrappers for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/highmem.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/%dev%/mem" is read.
+ *
+ * \param buf output buffer.
+ * \param start start of output data.
+ * \param offset requested start offset.
+ * \param len requested number of bytes.
+ * \param eof whether there is no more data to return.
+ * \param data private data.
+ * \return number of written bytes.
+ *
+ * No-op.
+ */
+int drm_mem_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data)
+{
+ return 0;
+}
+
+#if __OS_HAS_AGP
+static void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ unsigned long i, num_pages =
+ PAGE_ALIGN(size) / PAGE_SIZE;
+ struct drm_agp_mem *agpmem;
+ struct page **page_map;
+ struct page **phys_page_map;
+ void *addr;
+
+ size = PAGE_ALIGN(size);
+
+#ifdef __alpha__
+ offset -= dev->hose->mem_space->start;
+#endif
+
+ list_for_each_entry(agpmem, &dev->agp->memory, head)
+ if (agpmem->bound <= offset
+ && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
+ (offset + size))
+ break;
+ if (!agpmem)
+ return NULL;
+
+ /*
+ * OK, we're mapping AGP space on a chipset/platform on which memory accesses by
+ * the CPU do not get remapped by the GART. We fix this by using the kernel's
+ * page-table instead (that's probably faster anyhow...).
+ */
+ /* note: use vmalloc() because num_pages could be large... */
+ page_map = vmalloc(num_pages * sizeof(struct page *));
+ if (!page_map)
+ return NULL;
+
+ phys_page_map = (agpmem->memory->pages + (offset - agpmem->bound) / PAGE_SIZE);
+ for (i = 0; i < num_pages; ++i)
+ page_map[i] = phys_page_map[i];
+ addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
+ vfree(page_map);
+
+ return addr;
+}
+
+/** Wrapper around agp_allocate_memory() */
+DRM_AGP_MEM *drm_alloc_agp(struct drm_device * dev, int pages, u32 type)
+{
+ return drm_agp_allocate_memory(dev->agp->bridge, pages, type);
+}
+
+/** Wrapper around agp_free_memory() */
+int drm_free_agp(DRM_AGP_MEM * handle, int pages)
+{
+ return drm_agp_free_memory(handle) ? 0 : -EINVAL;
+}
+EXPORT_SYMBOL(drm_free_agp);
+
+/** Wrapper around agp_bind_memory() */
+int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
+{
+ return drm_agp_bind_memory(handle, start);
+}
+
+/** Wrapper around agp_unbind_memory() */
+int drm_unbind_agp(DRM_AGP_MEM * handle)
+{
+ return drm_agp_unbind_memory(handle);
+}
+EXPORT_SYMBOL(drm_unbind_agp);
+
+#else /* __OS_HAS_AGP */
+static inline void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ return NULL;
+}
+
+#endif /* agp */
+
+void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap);
+
+void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap_wc(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap_wc);
+
+void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (!map->handle || !map->size)
+ return;
+
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ vunmap(map->handle);
+ else
+ iounmap(map->handle);
+}
+EXPORT_SYMBOL(drm_core_ioremapfree);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+
+/*
+ * Generic simple memory manager implementation. Intended to be used as a base
+ * class implementation for more advanced memory managers.
+ *
+ * Note that the algorithm used is quite simple and there might be substantial
+ * performance gains if a smarter free list is implemented. Currently it is just an
+ * unordered stack of free regions. This could easily be improved if an RB-tree
+ * is used instead. At least if we expect heavy fragmentation.
+ *
+ * Aligned allocations can also see improvement.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_mm.h"
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+
+#define MM_UNUSED_TARGET 4
+
+unsigned long drm_mm_tail_space(struct drm_mm *mm)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free)
+ return 0;
+
+ return entry->size;
+}
+
+int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free)
+ return -ENOMEM;
+
+ if (entry->size <= size)
+ return -ENOMEM;
+
+ entry->size -= size;
+ return 0;
+}
+
+static struct drm_mm_node *drm_mm_kmalloc(struct drm_mm *mm, int atomic)
+{
+ struct drm_mm_node *child;
+
+ if (atomic)
+ child = kmalloc(sizeof(*child), GFP_ATOMIC);
+ else
+ child = kmalloc(sizeof(*child), GFP_KERNEL);
+
+ if (unlikely(child == NULL)) {
+ spin_lock(&mm->unused_lock);
+ if (list_empty(&mm->unused_nodes))
+ child = NULL;
+ else {
+ child =
+ list_entry(mm->unused_nodes.next,
+ struct drm_mm_node, fl_entry);
+ list_del(&child->fl_entry);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+ }
+ return child;
+}
+
+/* drm_mm_pre_get() - pre allocate drm_mm_node structure
+ * drm_mm: memory manager struct we are pre-allocating for
+ *
+ * Returns 0 on success or -ENOMEM if allocation fails.
+ */
+int drm_mm_pre_get(struct drm_mm *mm)
+{
+ struct drm_mm_node *node;
+
+ spin_lock(&mm->unused_lock);
+ while (mm->num_unused < MM_UNUSED_TARGET) {
+ spin_unlock(&mm->unused_lock);
+ node = kmalloc(sizeof(*node), GFP_KERNEL);
+ spin_lock(&mm->unused_lock);
+
+ if (unlikely(node == NULL)) {
+ int ret = (mm->num_unused < 2) ? -ENOMEM : 0;
+ spin_unlock(&mm->unused_lock);
+ return ret;
+ }
+ ++mm->num_unused;
+ list_add_tail(&node->fl_entry, &mm->unused_nodes);
+ }
+ spin_unlock(&mm->unused_lock);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_pre_get);
+
+static int drm_mm_create_tail_node(struct drm_mm *mm,
+ unsigned long start,
+ unsigned long size, int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(mm, atomic);
+ if (unlikely(child == NULL))
+ return -ENOMEM;
+
+ child->free = 1;
+ child->size = size;
+ child->start = start;
+ child->mm = mm;
+
+ list_add_tail(&child->ml_entry, &mm->ml_entry);
+ list_add_tail(&child->fl_entry, &mm->fl_entry);
+
+ return 0;
+}
+
+int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size, int atomic)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free) {
+ return drm_mm_create_tail_node(mm, entry->start + entry->size,
+ size, atomic);
+ }
+ entry->size += size;
+ return 0;
+}
+
+static struct drm_mm_node *drm_mm_split_at_start(struct drm_mm_node *parent,
+ unsigned long size,
+ int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(parent->mm, atomic);
+ if (unlikely(child == NULL))
+ return NULL;
+
+ INIT_LIST_HEAD(&child->fl_entry);
+
+ child->free = 0;
+ child->size = size;
+ child->start = parent->start;
+ child->mm = parent->mm;
+
+ list_add_tail(&child->ml_entry, &parent->ml_entry);
+ INIT_LIST_HEAD(&child->fl_entry);
+
+ parent->size -= size;
+ parent->start += size;
+ return child;
+}
+
+
+struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ int atomic)
+{
+
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+
+ if (alignment)
+ tmp = node->start % alignment;
+
+ if (tmp) {
+ align_splitoff =
+ drm_mm_split_at_start(node, alignment - tmp, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->fl_entry);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_generic);
+
+struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int atomic)
+{
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+ unsigned wasted = 0;
+
+ if (node->start < start)
+ wasted += start - node->start;
+ if (alignment)
+ tmp = ((node->start + wasted) % alignment);
+
+ if (tmp)
+ wasted += alignment - tmp;
+ if (wasted) {
+ align_splitoff = drm_mm_split_at_start(node, wasted, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->fl_entry);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_range_generic);
+
+/*
+ * Put a block. Merge with the previous and / or next block if they are free.
+ * Otherwise add to the free stack.
+ */
+
+void drm_mm_put_block(struct drm_mm_node *cur)
+{
+
+ struct drm_mm *mm = cur->mm;
+ struct list_head *cur_head = &cur->ml_entry;
+ struct list_head *root_head = &mm->ml_entry;
+ struct drm_mm_node *prev_node = NULL;
+ struct drm_mm_node *next_node;
+
+ int merged = 0;
+
+ if (cur_head->prev != root_head) {
+ prev_node =
+ list_entry(cur_head->prev, struct drm_mm_node, ml_entry);
+ if (prev_node->free) {
+ prev_node->size += cur->size;
+ merged = 1;
+ }
+ }
+ if (cur_head->next != root_head) {
+ next_node =
+ list_entry(cur_head->next, struct drm_mm_node, ml_entry);
+ if (next_node->free) {
+ if (merged) {
+ prev_node->size += next_node->size;
+ list_del(&next_node->ml_entry);
+ list_del(&next_node->fl_entry);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&next_node->fl_entry,
+ &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(next_node);
+ spin_unlock(&mm->unused_lock);
+ } else {
+ next_node->size += cur->size;
+ next_node->start = cur->start;
+ merged = 1;
+ }
+ }
+ }
+ if (!merged) {
+ cur->free = 1;
+ list_add(&cur->fl_entry, &mm->fl_entry);
+ } else {
+ list_del(&cur->ml_entry);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&cur->fl_entry, &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(cur);
+ spin_unlock(&mm->unused_lock);
+ }
+}
+
+EXPORT_SYMBOL(drm_mm_put_block);
+
+struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment, int best_match)
+{
+ struct list_head *list;
+ const struct list_head *free_stack = &mm->fl_entry;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+ unsigned wasted;
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each(list, free_stack) {
+ entry = list_entry(list, struct drm_mm_node, fl_entry);
+ wasted = 0;
+
+ if (entry->size < size)
+ continue;
+
+ if (alignment) {
+ register unsigned tmp = entry->start % alignment;
+ if (tmp)
+ wasted += alignment - tmp;
+ }
+
+ if (entry->size >= size + wasted) {
+ if (!best_match)
+ return entry;
+ if (size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free);
+
+struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int best_match)
+{
+ struct list_head *list;
+ const struct list_head *free_stack = &mm->fl_entry;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+ unsigned wasted;
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each(list, free_stack) {
+ entry = list_entry(list, struct drm_mm_node, fl_entry);
+ wasted = 0;
+
+ if (entry->size < size)
+ continue;
+
+ if (entry->start > end || (entry->start+entry->size) < start)
+ continue;
+
+ if (entry->start < start)
+ wasted += start - entry->start;
+
+ if (alignment) {
+ register unsigned tmp = (entry->start + wasted) % alignment;
+ if (tmp)
+ wasted += alignment - tmp;
+ }
+
+ if (entry->size >= size + wasted) {
+ if (!best_match)
+ return entry;
+ if (size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free_in_range);
+
+int drm_mm_clean(struct drm_mm * mm)
+{
+ struct list_head *head = &mm->ml_entry;
+
+ return (head->next->next == head);
+}
+EXPORT_SYMBOL(drm_mm_clean);
+
+int drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
+{
+ INIT_LIST_HEAD(&mm->ml_entry);
+ INIT_LIST_HEAD(&mm->fl_entry);
+ INIT_LIST_HEAD(&mm->unused_nodes);
+ mm->num_unused = 0;
+ spin_lock_init(&mm->unused_lock);
+
+ return drm_mm_create_tail_node(mm, start, size, 0);
+}
+EXPORT_SYMBOL(drm_mm_init);
+
+void drm_mm_takedown(struct drm_mm * mm)
+{
+ struct list_head *bnode = mm->fl_entry.next;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *next;
+
+ entry = list_entry(bnode, struct drm_mm_node, fl_entry);
+
+ if (entry->ml_entry.next != &mm->ml_entry ||
+ entry->fl_entry.next != &mm->fl_entry) {
+ DRM_ERROR("Memory manager not clean. Delaying takedown\n");
+ return;
+ }
+
+ list_del(&entry->fl_entry);
+ list_del(&entry->ml_entry);
+ kfree(entry);
+
+ spin_lock(&mm->unused_lock);
+ list_for_each_entry_safe(entry, next, &mm->unused_nodes, fl_entry) {
+ list_del(&entry->fl_entry);
+ kfree(entry);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+
+ BUG_ON(mm->num_unused != 0);
+}
+EXPORT_SYMBOL(drm_mm_takedown);
+
+void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->ml_entry, ml_entry) {
+ printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8ld: %s\n",
+ prefix, entry->start, entry->start + entry->size,
+ entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ printk(KERN_DEBUG "%s total: %d, used %d free %d\n", prefix, total,
+ total_used, total_free);
+}
+EXPORT_SYMBOL(drm_mm_debug_table);
+
+#if defined(CONFIG_DEBUG_FS)
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->ml_entry, ml_entry) {
+ seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: %s\n", entry->start, entry->start + entry->size, entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ seq_printf(m, "total: %d, used %d free %d\n", total, total_used, total_free);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_dump_table);
+#endif
--- /dev/null
+/*
+ * The list_sort function is (presumably) licensed under the GPL (see the
+ * top level "COPYING" file for details).
+ *
+ * The remainder of this file is:
+ *
+ * Copyright © 1997-2003 by The XFree86 Project, Inc.
+ * Copyright © 2007 Dave Airlie
+ * Copyright © 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2005-2006 Luc Verhaegen
+ * Copyright (c) 2001, Andy Ritger aritger@nvidia.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+#include <linux/list.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+
+/**
+ * drm_mode_debug_printmodeline - debug print a mode
+ * @dev: DRM device
+ * @mode: mode to print
+ *
+ * LOCKING:
+ * None.
+ *
+ * Describe @mode using DRM_DEBUG.
+ */
+void drm_mode_debug_printmodeline(struct drm_display_mode *mode)
+{
+ DRM_DEBUG_KMS("Modeline %d:\"%s\" %d %d %d %d %d %d %d %d %d %d "
+ "0x%x 0x%x\n",
+ mode->base.id, mode->name, mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+}
+EXPORT_SYMBOL(drm_mode_debug_printmodeline);
+
+/**
+ * drm_cvt_mode -create a modeline based on CVT algorithm
+ * @dev: DRM device
+ * @hdisplay: hdisplay size
+ * @vdisplay: vdisplay size
+ * @vrefresh : vrefresh rate
+ * @reduced : Whether the GTF calculation is simplified
+ * @interlaced:Whether the interlace is supported
+ *
+ * LOCKING:
+ * none.
+ *
+ * return the modeline based on CVT algorithm
+ *
+ * This function is called to generate the modeline based on CVT algorithm
+ * according to the hdisplay, vdisplay, vrefresh.
+ * It is based from the VESA(TM) Coordinated Video Timing Generator by
+ * Graham Loveridge April 9, 2003 available at
+ * http://www.vesa.org/public/CVT/CVTd6r1.xls
+ *
+ * And it is copied from xf86CVTmode in xserver/hw/xfree86/modes/xf86cvt.c.
+ * What I have done is to translate it by using integer calculation.
+ */
+#define HV_FACTOR 1000
+struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
+ int vdisplay, int vrefresh,
+ bool reduced, bool interlaced, bool margins)
+{
+ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define CVT_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define CVT_H_GRANULARITY 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define CVT_MIN_V_PORCH 3
+ /* 4) Minimum number of vertical back porch lines - default 6 */
+#define CVT_MIN_V_BPORCH 6
+ /* Pixel Clock step (kHz) */
+#define CVT_CLOCK_STEP 250
+ struct drm_display_mode *drm_mode;
+ unsigned int vfieldrate, hperiod;
+ int hdisplay_rnd, hmargin, vdisplay_rnd, vmargin, vsync;
+ int interlace;
+
+ /* allocate the drm_display_mode structure. If failure, we will
+ * return directly
+ */
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* the CVT default refresh rate is 60Hz */
+ if (!vrefresh)
+ vrefresh = 60;
+
+ /* the required field fresh rate */
+ if (interlaced)
+ vfieldrate = vrefresh * 2;
+ else
+ vfieldrate = vrefresh;
+
+ /* horizontal pixels */
+ hdisplay_rnd = hdisplay - (hdisplay % CVT_H_GRANULARITY);
+
+ /* determine the left&right borders */
+ hmargin = 0;
+ if (margins) {
+ hmargin = hdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+ hmargin -= hmargin % CVT_H_GRANULARITY;
+ }
+ /* find the total active pixels */
+ drm_mode->hdisplay = hdisplay_rnd + 2 * hmargin;
+
+ /* find the number of lines per field */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* find the top & bottom borders */
+ vmargin = 0;
+ if (margins)
+ vmargin = vdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+
+ drm_mode->vdisplay = vdisplay + 2 * vmargin;
+
+ /* Interlaced */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* Determine VSync Width from aspect ratio */
+ if (!(vdisplay % 3) && ((vdisplay * 4 / 3) == hdisplay))
+ vsync = 4;
+ else if (!(vdisplay % 9) && ((vdisplay * 16 / 9) == hdisplay))
+ vsync = 5;
+ else if (!(vdisplay % 10) && ((vdisplay * 16 / 10) == hdisplay))
+ vsync = 6;
+ else if (!(vdisplay % 4) && ((vdisplay * 5 / 4) == hdisplay))
+ vsync = 7;
+ else if (!(vdisplay % 9) && ((vdisplay * 15 / 9) == hdisplay))
+ vsync = 7;
+ else /* custom */
+ vsync = 10;
+
+ if (!reduced) {
+ /* simplify the GTF calculation */
+ /* 4) Minimum time of vertical sync + back porch interval (µs)
+ * default 550.0
+ */
+ int tmp1, tmp2;
+#define CVT_MIN_VSYNC_BP 550
+ /* 3) Nominal HSync width (% of line period) - default 8 */
+#define CVT_HSYNC_PERCENTAGE 8
+ unsigned int hblank_percentage;
+ int vsyncandback_porch, vback_porch, hblank;
+
+ /* estimated the horizontal period */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_MIN_VSYNC_BP * HV_FACTOR * vfieldrate;
+ tmp2 = (vdisplay_rnd + 2 * vmargin + CVT_MIN_V_PORCH) * 2 +
+ interlace;
+ hperiod = tmp1 * 2 / (tmp2 * vfieldrate);
+
+ tmp1 = CVT_MIN_VSYNC_BP * HV_FACTOR / hperiod + 1;
+ /* 9. Find number of lines in sync + backporch */
+ if (tmp1 < (vsync + CVT_MIN_V_PORCH))
+ vsyncandback_porch = vsync + CVT_MIN_V_PORCH;
+ else
+ vsyncandback_porch = tmp1;
+ /* 10. Find number of lines in back porch */
+ vback_porch = vsyncandback_porch - vsync;
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin +
+ vsyncandback_porch + CVT_MIN_V_PORCH;
+ /* 5) Definition of Horizontal blanking time limitation */
+ /* Gradient (%/kHz) - default 600 */
+#define CVT_M_FACTOR 600
+ /* Offset (%) - default 40 */
+#define CVT_C_FACTOR 40
+ /* Blanking time scaling factor - default 128 */
+#define CVT_K_FACTOR 128
+ /* Scaling factor weighting - default 20 */
+#define CVT_J_FACTOR 20
+#define CVT_M_PRIME (CVT_M_FACTOR * CVT_K_FACTOR / 256)
+#define CVT_C_PRIME ((CVT_C_FACTOR - CVT_J_FACTOR) * CVT_K_FACTOR / 256 + \
+ CVT_J_FACTOR)
+ /* 12. Find ideal blanking duty cycle from formula */
+ hblank_percentage = CVT_C_PRIME * HV_FACTOR - CVT_M_PRIME *
+ hperiod / 1000;
+ /* 13. Blanking time */
+ if (hblank_percentage < 20 * HV_FACTOR)
+ hblank_percentage = 20 * HV_FACTOR;
+ hblank = drm_mode->hdisplay * hblank_percentage /
+ (100 * HV_FACTOR - hblank_percentage);
+ hblank -= hblank % (2 * CVT_H_GRANULARITY);
+ /* 14. find the total pixes per line */
+ drm_mode->htotal = drm_mode->hdisplay + hblank;
+ drm_mode->hsync_end = drm_mode->hdisplay + hblank / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end -
+ (drm_mode->htotal * CVT_HSYNC_PERCENTAGE) / 100;
+ drm_mode->hsync_start += CVT_H_GRANULARITY -
+ drm_mode->hsync_start % CVT_H_GRANULARITY;
+ /* fill the Vsync values */
+ drm_mode->vsync_start = drm_mode->vdisplay + CVT_MIN_V_PORCH;
+ drm_mode->vsync_end = drm_mode->vsync_start + vsync;
+ } else {
+ /* Reduced blanking */
+ /* Minimum vertical blanking interval time (µs)- default 460 */
+#define CVT_RB_MIN_VBLANK 460
+ /* Fixed number of clocks for horizontal sync */
+#define CVT_RB_H_SYNC 32
+ /* Fixed number of clocks for horizontal blanking */
+#define CVT_RB_H_BLANK 160
+ /* Fixed number of lines for vertical front porch - default 3*/
+#define CVT_RB_VFPORCH 3
+ int vbilines;
+ int tmp1, tmp2;
+ /* 8. Estimate Horizontal period. */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_RB_MIN_VBLANK * HV_FACTOR * vfieldrate;
+ tmp2 = vdisplay_rnd + 2 * vmargin;
+ hperiod = tmp1 / (tmp2 * vfieldrate);
+ /* 9. Find number of lines in vertical blanking */
+ vbilines = CVT_RB_MIN_VBLANK * HV_FACTOR / hperiod + 1;
+ /* 10. Check if vertical blanking is sufficient */
+ if (vbilines < (CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH))
+ vbilines = CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH;
+ /* 11. Find total number of lines in vertical field */
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin + vbilines;
+ /* 12. Find total number of pixels in a line */
+ drm_mode->htotal = drm_mode->hdisplay + CVT_RB_H_BLANK;
+ /* Fill in HSync values */
+ drm_mode->hsync_end = drm_mode->hdisplay + CVT_RB_H_BLANK / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end = CVT_RB_H_SYNC;
+ }
+ /* 15/13. Find pixel clock frequency (kHz for xf86) */
+ drm_mode->clock = drm_mode->htotal * HV_FACTOR * 1000 / hperiod;
+ drm_mode->clock -= drm_mode->clock % CVT_CLOCK_STEP;
+ /* 18/16. Find actual vertical frame frequency */
+ /* ignore - just set the mode flag for interlaced */
+ if (interlaced)
+ drm_mode->vtotal *= 2;
+ /* Fill the mode line name */
+ drm_mode_set_name(drm_mode);
+ if (reduced)
+ drm_mode->flags |= (DRM_MODE_FLAG_PHSYNC |
+ DRM_MODE_FLAG_NVSYNC);
+ else
+ drm_mode->flags |= (DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_NHSYNC);
+ if (interlaced)
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_cvt_mode);
+
+/**
+ * drm_gtf_mode - create the modeline based on GTF algorithm
+ *
+ * @dev :drm device
+ * @hdisplay :hdisplay size
+ * @vdisplay :vdisplay size
+ * @vrefresh :vrefresh rate.
+ * @interlaced :whether the interlace is supported
+ * @margins :whether the margin is supported
+ *
+ * LOCKING.
+ * none.
+ *
+ * return the modeline based on GTF algorithm
+ *
+ * This function is to create the modeline based on the GTF algorithm.
+ * Generalized Timing Formula is derived from:
+ * GTF Spreadsheet by Andy Morrish (1/5/97)
+ * available at http://www.vesa.org
+ *
+ * And it is copied from the file of xserver/hw/xfree86/modes/xf86gtf.c.
+ * What I have done is to translate it by using integer calculation.
+ * I also refer to the function of fb_get_mode in the file of
+ * drivers/video/fbmon.c
+ */
+struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay,
+ int vdisplay, int vrefresh,
+ bool interlaced, int margins)
+{
+ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define GTF_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define GTF_CELL_GRAN 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define GTF_MIN_V_PORCH 1
+ /* width of vsync in lines */
+#define V_SYNC_RQD 3
+ /* width of hsync as % of total line */
+#define H_SYNC_PERCENT 8
+ /* min time of vsync + back porch (microsec) */
+#define MIN_VSYNC_PLUS_BP 550
+ /* blanking formula gradient */
+#define GTF_M 600
+ /* blanking formula offset */
+#define GTF_C 40
+ /* blanking formula scaling factor */
+#define GTF_K 128
+ /* blanking formula scaling factor */
+#define GTF_J 20
+ /* C' and M' are part of the Blanking Duty Cycle computation */
+#define GTF_C_PRIME (((GTF_C - GTF_J) * GTF_K / 256) + GTF_J)
+#define GTF_M_PRIME (GTF_K * GTF_M / 256)
+ struct drm_display_mode *drm_mode;
+ unsigned int hdisplay_rnd, vdisplay_rnd, vfieldrate_rqd;
+ int top_margin, bottom_margin;
+ int interlace;
+ unsigned int hfreq_est;
+ int vsync_plus_bp, vback_porch;
+ unsigned int vtotal_lines, vfieldrate_est, hperiod;
+ unsigned int vfield_rate, vframe_rate;
+ int left_margin, right_margin;
+ unsigned int total_active_pixels, ideal_duty_cycle;
+ unsigned int hblank, total_pixels, pixel_freq;
+ int hsync, hfront_porch, vodd_front_porch_lines;
+ unsigned int tmp1, tmp2;
+
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* 1. In order to give correct results, the number of horizontal
+ * pixels requested is first processed to ensure that it is divisible
+ * by the character size, by rounding it to the nearest character
+ * cell boundary:
+ */
+ hdisplay_rnd = (hdisplay + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hdisplay_rnd = hdisplay_rnd * GTF_CELL_GRAN;
+
+ /* 2. If interlace is requested, the number of vertical lines assumed
+ * by the calculation must be halved, as the computation calculates
+ * the number of vertical lines per field.
+ */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* 3. Find the frame rate required: */
+ if (interlaced)
+ vfieldrate_rqd = vrefresh * 2;
+ else
+ vfieldrate_rqd = vrefresh;
+
+ /* 4. Find number of lines in Top margin: */
+ top_margin = 0;
+ if (margins)
+ top_margin = (vdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ /* 5. Find number of lines in bottom margin: */
+ bottom_margin = top_margin;
+
+ /* 6. If interlace is required, then set variable interlace: */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* 7. Estimate the Horizontal frequency */
+ {
+ tmp1 = (1000000 - MIN_VSYNC_PLUS_BP * vfieldrate_rqd) / 500;
+ tmp2 = (vdisplay_rnd + 2 * top_margin + GTF_MIN_V_PORCH) *
+ 2 + interlace;
+ hfreq_est = (tmp2 * 1000 * vfieldrate_rqd) / tmp1;
+ }
+
+ /* 8. Find the number of lines in V sync + back porch */
+ /* [V SYNC+BP] = RINT(([MIN VSYNC+BP] * hfreq_est / 1000000)) */
+ vsync_plus_bp = MIN_VSYNC_PLUS_BP * hfreq_est / 1000;
+ vsync_plus_bp = (vsync_plus_bp + 500) / 1000;
+ /* 9. Find the number of lines in V back porch alone: */
+ vback_porch = vsync_plus_bp - V_SYNC_RQD;
+ /* 10. Find the total number of lines in Vertical field period: */
+ vtotal_lines = vdisplay_rnd + top_margin + bottom_margin +
+ vsync_plus_bp + GTF_MIN_V_PORCH;
+ /* 11. Estimate the Vertical field frequency: */
+ vfieldrate_est = hfreq_est / vtotal_lines;
+ /* 12. Find the actual horizontal period: */
+ hperiod = 1000000 / (vfieldrate_rqd * vtotal_lines);
+
+ /* 13. Find the actual Vertical field frequency: */
+ vfield_rate = hfreq_est / vtotal_lines;
+ /* 14. Find the Vertical frame frequency: */
+ if (interlaced)
+ vframe_rate = vfield_rate / 2;
+ else
+ vframe_rate = vfield_rate;
+ /* 15. Find number of pixels in left margin: */
+ if (margins)
+ left_margin = (hdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ else
+ left_margin = 0;
+
+ /* 16.Find number of pixels in right margin: */
+ right_margin = left_margin;
+ /* 17.Find total number of active pixels in image and left and right */
+ total_active_pixels = hdisplay_rnd + left_margin + right_margin;
+ /* 18.Find the ideal blanking duty cycle from blanking duty cycle */
+ ideal_duty_cycle = GTF_C_PRIME * 1000 -
+ (GTF_M_PRIME * 1000000 / hfreq_est);
+ /* 19.Find the number of pixels in the blanking time to the nearest
+ * double character cell: */
+ hblank = total_active_pixels * ideal_duty_cycle /
+ (100000 - ideal_duty_cycle);
+ hblank = (hblank + GTF_CELL_GRAN) / (2 * GTF_CELL_GRAN);
+ hblank = hblank * 2 * GTF_CELL_GRAN;
+ /* 20.Find total number of pixels: */
+ total_pixels = total_active_pixels + hblank;
+ /* 21.Find pixel clock frequency: */
+ pixel_freq = total_pixels * hfreq_est / 1000;
+ /* Stage 1 computations are now complete; I should really pass
+ * the results to another function and do the Stage 2 computations,
+ * but I only need a few more values so I'll just append the
+ * computations here for now */
+ /* 17. Find the number of pixels in the horizontal sync period: */
+ hsync = H_SYNC_PERCENT * total_pixels / 100;
+ hsync = (hsync + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hsync = hsync * GTF_CELL_GRAN;
+ /* 18. Find the number of pixels in horizontal front porch period */
+ hfront_porch = hblank / 2 - hsync;
+ /* 36. Find the number of lines in the odd front porch period: */
+ vodd_front_porch_lines = GTF_MIN_V_PORCH ;
+
+ /* finally, pack the results in the mode struct */
+ drm_mode->hdisplay = hdisplay_rnd;
+ drm_mode->hsync_start = hdisplay_rnd + hfront_porch;
+ drm_mode->hsync_end = drm_mode->hsync_start + hsync;
+ drm_mode->htotal = total_pixels;
+ drm_mode->vdisplay = vdisplay_rnd;
+ drm_mode->vsync_start = vdisplay_rnd + vodd_front_porch_lines;
+ drm_mode->vsync_end = drm_mode->vsync_start + V_SYNC_RQD;
+ drm_mode->vtotal = vtotal_lines;
+
+ drm_mode->clock = pixel_freq;
+
+ drm_mode_set_name(drm_mode);
+ drm_mode->flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC;
+
+ if (interlaced) {
+ drm_mode->vtotal *= 2;
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+ }
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_gtf_mode);
+/**
+ * drm_mode_set_name - set the name on a mode
+ * @mode: name will be set in this mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Set the name of @mode to a standard format.
+ */
+void drm_mode_set_name(struct drm_display_mode *mode)
+{
+ snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d", mode->hdisplay,
+ mode->vdisplay);
+}
+EXPORT_SYMBOL(drm_mode_set_name);
+
+/**
+ * drm_mode_list_concat - move modes from one list to another
+ * @head: source list
+ * @new: dst list
+ *
+ * LOCKING:
+ * Caller must ensure both lists are locked.
+ *
+ * Move all the modes from @head to @new.
+ */
+void drm_mode_list_concat(struct list_head *head, struct list_head *new)
+{
+
+ struct list_head *entry, *tmp;
+
+ list_for_each_safe(entry, tmp, head) {
+ list_move_tail(entry, new);
+ }
+}
+EXPORT_SYMBOL(drm_mode_list_concat);
+
+/**
+ * drm_mode_width - get the width of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's width (hdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->hdisplay
+ */
+int drm_mode_width(struct drm_display_mode *mode)
+{
+ return mode->hdisplay;
+
+}
+EXPORT_SYMBOL(drm_mode_width);
+
+/**
+ * drm_mode_height - get the height of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's height (vdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->vdisplay
+ */
+int drm_mode_height(struct drm_display_mode *mode)
+{
+ return mode->vdisplay;
+}
+EXPORT_SYMBOL(drm_mode_height);
+
+/** drm_mode_hsync - get the hsync of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @modes's hsync rate in kHz, rounded to the nearest int.
+ */
+int drm_mode_hsync(struct drm_display_mode *mode)
+{
+ unsigned int calc_val;
+
+ if (mode->hsync)
+ return mode->hsync;
+
+ if (mode->htotal < 0)
+ return 0;
+
+ calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
+ calc_val += 500; /* round to 1000Hz */
+ calc_val /= 1000; /* truncate to kHz */
+
+ return calc_val;
+}
+EXPORT_SYMBOL(drm_mode_hsync);
+
+/**
+ * drm_mode_vrefresh - get the vrefresh of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's vrefresh rate in Hz or calculate it if necessary.
+ *
+ * FIXME: why is this needed? shouldn't vrefresh be set already?
+ *
+ * RETURNS:
+ * Vertical refresh rate. It will be the result of actual value plus 0.5.
+ * If it is 70.288, it will return 70Hz.
+ * If it is 59.6, it will return 60Hz.
+ */
+int drm_mode_vrefresh(struct drm_display_mode *mode)
+{
+ int refresh = 0;
+ unsigned int calc_val;
+
+ if (mode->vrefresh > 0)
+ refresh = mode->vrefresh;
+ else if (mode->htotal > 0 && mode->vtotal > 0) {
+ int vtotal;
+ vtotal = mode->vtotal;
+ /* work out vrefresh the value will be x1000 */
+ calc_val = (mode->clock * 1000);
+ calc_val /= mode->htotal;
+ refresh = (calc_val + vtotal / 2) / vtotal;
+
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ refresh *= 2;
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ refresh /= 2;
+ if (mode->vscan > 1)
+ refresh /= mode->vscan;
+ }
+ return refresh;
+}
+EXPORT_SYMBOL(drm_mode_vrefresh);
+
+/**
+ * drm_mode_set_crtcinfo - set CRTC modesetting parameters
+ * @p: mode
+ * @adjust_flags: unused? (FIXME)
+ *
+ * LOCKING:
+ * None.
+ *
+ * Setup the CRTC modesetting parameters for @p, adjusting if necessary.
+ */
+void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)
+{
+ if ((p == NULL) || ((p->type & DRM_MODE_TYPE_CRTC_C) == DRM_MODE_TYPE_BUILTIN))
+ return;
+
+ p->crtc_hdisplay = p->hdisplay;
+ p->crtc_hsync_start = p->hsync_start;
+ p->crtc_hsync_end = p->hsync_end;
+ p->crtc_htotal = p->htotal;
+ p->crtc_hskew = p->hskew;
+ p->crtc_vdisplay = p->vdisplay;
+ p->crtc_vsync_start = p->vsync_start;
+ p->crtc_vsync_end = p->vsync_end;
+ p->crtc_vtotal = p->vtotal;
+
+ if (p->flags & DRM_MODE_FLAG_INTERLACE) {
+ if (adjust_flags & CRTC_INTERLACE_HALVE_V) {
+ p->crtc_vdisplay /= 2;
+ p->crtc_vsync_start /= 2;
+ p->crtc_vsync_end /= 2;
+ p->crtc_vtotal /= 2;
+ }
+
+ p->crtc_vtotal |= 1;
+ }
+
+ if (p->flags & DRM_MODE_FLAG_DBLSCAN) {
+ p->crtc_vdisplay *= 2;
+ p->crtc_vsync_start *= 2;
+ p->crtc_vsync_end *= 2;
+ p->crtc_vtotal *= 2;
+ }
+
+ if (p->vscan > 1) {
+ p->crtc_vdisplay *= p->vscan;
+ p->crtc_vsync_start *= p->vscan;
+ p->crtc_vsync_end *= p->vscan;
+ p->crtc_vtotal *= p->vscan;
+ }
+
+ p->crtc_vblank_start = min(p->crtc_vsync_start, p->crtc_vdisplay);
+ p->crtc_vblank_end = max(p->crtc_vsync_end, p->crtc_vtotal);
+ p->crtc_hblank_start = min(p->crtc_hsync_start, p->crtc_hdisplay);
+ p->crtc_hblank_end = max(p->crtc_hsync_end, p->crtc_htotal);
+
+ p->crtc_hadjusted = false;
+ p->crtc_vadjusted = false;
+}
+EXPORT_SYMBOL(drm_mode_set_crtcinfo);
+
+
+/**
+ * drm_mode_duplicate - allocate and duplicate an existing mode
+ * @m: mode to duplicate
+ *
+ * LOCKING:
+ * None.
+ *
+ * Just allocate a new mode, copy the existing mode into it, and return
+ * a pointer to it. Used to create new instances of established modes.
+ */
+struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
+ struct drm_display_mode *mode)
+{
+ struct drm_display_mode *nmode;
+ int new_id;
+
+ nmode = drm_mode_create(dev);
+ if (!nmode)
+ return NULL;
+
+ new_id = nmode->base.id;
+ *nmode = *mode;
+ nmode->base.id = new_id;
+ INIT_LIST_HEAD(&nmode->head);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_duplicate);
+
+/**
+ * drm_mode_equal - test modes for equality
+ * @mode1: first mode
+ * @mode2: second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Check to see if @mode1 and @mode2 are equivalent.
+ *
+ * RETURNS:
+ * True if the modes are equal, false otherwise.
+ */
+bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2)
+{
+ /* do clock check convert to PICOS so fb modes get matched
+ * the same */
+ if (mode1->clock && mode2->clock) {
+ if (KHZ2PICOS(mode1->clock) != KHZ2PICOS(mode2->clock))
+ return false;
+ } else if (mode1->clock != mode2->clock)
+ return false;
+
+ if (mode1->hdisplay == mode2->hdisplay &&
+ mode1->hsync_start == mode2->hsync_start &&
+ mode1->hsync_end == mode2->hsync_end &&
+ mode1->htotal == mode2->htotal &&
+ mode1->hskew == mode2->hskew &&
+ mode1->vdisplay == mode2->vdisplay &&
+ mode1->vsync_start == mode2->vsync_start &&
+ mode1->vsync_end == mode2->vsync_end &&
+ mode1->vtotal == mode2->vtotal &&
+ mode1->vscan == mode2->vscan &&
+ mode1->flags == mode2->flags)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(drm_mode_equal);
+
+/**
+ * drm_mode_validate_size - make sure modes adhere to size constraints
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @maxX: maximum width
+ * @maxY: maximum height
+ * @maxPitch: max pitch
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * The DRM device (@dev) has size and pitch limits. Here we validate the
+ * modes we probed for @dev against those limits and set their status as
+ * necessary.
+ */
+void drm_mode_validate_size(struct drm_device *dev,
+ struct list_head *mode_list,
+ int maxX, int maxY, int maxPitch)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, mode_list, head) {
+ if (maxPitch > 0 && mode->hdisplay > maxPitch)
+ mode->status = MODE_BAD_WIDTH;
+
+ if (maxX > 0 && mode->hdisplay > maxX)
+ mode->status = MODE_VIRTUAL_X;
+
+ if (maxY > 0 && mode->vdisplay > maxY)
+ mode->status = MODE_VIRTUAL_Y;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_size);
+
+/**
+ * drm_mode_validate_clocks - validate modes against clock limits
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @min: minimum clock rate array
+ * @max: maximum clock rate array
+ * @n_ranges: number of clock ranges (size of arrays)
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Some code may need to check a mode list against the clock limits of the
+ * device in question. This function walks the mode list, testing to make
+ * sure each mode falls within a given range (defined by @min and @max
+ * arrays) and sets @mode->status as needed.
+ */
+void drm_mode_validate_clocks(struct drm_device *dev,
+ struct list_head *mode_list,
+ int *min, int *max, int n_ranges)
+{
+ struct drm_display_mode *mode;
+ int i;
+
+ list_for_each_entry(mode, mode_list, head) {
+ bool good = false;
+ for (i = 0; i < n_ranges; i++) {
+ if (mode->clock >= min[i] && mode->clock <= max[i]) {
+ good = true;
+ break;
+ }
+ }
+ if (!good)
+ mode->status = MODE_CLOCK_RANGE;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_clocks);
+
+/**
+ * drm_mode_prune_invalid - remove invalid modes from mode list
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @verbose: be verbose about it
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Once mode list generation is complete, a caller can use this routine to
+ * remove invalid modes from a mode list. If any of the modes have a
+ * status other than %MODE_OK, they are removed from @mode_list and freed.
+ */
+void drm_mode_prune_invalid(struct drm_device *dev,
+ struct list_head *mode_list, bool verbose)
+{
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, mode_list, head) {
+ if (mode->status != MODE_OK) {
+ list_del(&mode->head);
+ if (verbose) {
+ drm_mode_debug_printmodeline(mode);
+ DRM_DEBUG_KMS("Not using %s mode %d\n",
+ mode->name, mode->status);
+ }
+ drm_mode_destroy(dev, mode);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_prune_invalid);
+
+/**
+ * drm_mode_compare - compare modes for favorability
+ * @lh_a: list_head for first mode
+ * @lh_b: list_head for second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Compare two modes, given by @lh_a and @lh_b, returning a value indicating
+ * which is better.
+ *
+ * RETURNS:
+ * Negative if @lh_a is better than @lh_b, zero if they're equivalent, or
+ * positive if @lh_b is better than @lh_a.
+ */
+static int drm_mode_compare(struct list_head *lh_a, struct list_head *lh_b)
+{
+ struct drm_display_mode *a = list_entry(lh_a, struct drm_display_mode, head);
+ struct drm_display_mode *b = list_entry(lh_b, struct drm_display_mode, head);
+ int diff;
+
+ diff = ((b->type & DRM_MODE_TYPE_PREFERRED) != 0) -
+ ((a->type & DRM_MODE_TYPE_PREFERRED) != 0);
+ if (diff)
+ return diff;
+ diff = b->hdisplay * b->vdisplay - a->hdisplay * a->vdisplay;
+ if (diff)
+ return diff;
+ diff = b->clock - a->clock;
+ return diff;
+}
+
+/* FIXME: what we don't have a list sort function? */
+/* list sort from Mark J Roberts (mjr@znex.org) */
+void list_sort(struct list_head *head,
+ int (*cmp)(struct list_head *a, struct list_head *b))
+{
+ struct list_head *p, *q, *e, *list, *tail, *oldhead;
+ int insize, nmerges, psize, qsize, i;
+
+ list = head->next;
+ list_del(head);
+ insize = 1;
+ for (;;) {
+ p = oldhead = list;
+ list = tail = NULL;
+ nmerges = 0;
+
+ while (p) {
+ nmerges++;
+ q = p;
+ psize = 0;
+ for (i = 0; i < insize; i++) {
+ psize++;
+ q = q->next == oldhead ? NULL : q->next;
+ if (!q)
+ break;
+ }
+
+ qsize = insize;
+ while (psize > 0 || (qsize > 0 && q)) {
+ if (!psize) {
+ e = q;
+ q = q->next;
+ qsize--;
+ if (q == oldhead)
+ q = NULL;
+ } else if (!qsize || !q) {
+ e = p;
+ p = p->next;
+ psize--;
+ if (p == oldhead)
+ p = NULL;
+ } else if (cmp(p, q) <= 0) {
+ e = p;
+ p = p->next;
+ psize--;
+ if (p == oldhead)
+ p = NULL;
+ } else {
+ e = q;
+ q = q->next;
+ qsize--;
+ if (q == oldhead)
+ q = NULL;
+ }
+ if (tail)
+ tail->next = e;
+ else
+ list = e;
+ e->prev = tail;
+ tail = e;
+ }
+ p = q;
+ }
+
+ tail->next = list;
+ list->prev = tail;
+
+ if (nmerges <= 1)
+ break;
+
+ insize *= 2;
+ }
+
+ head->next = list;
+ head->prev = list->prev;
+ list->prev->next = head;
+ list->prev = head;
+}
+
+/**
+ * drm_mode_sort - sort mode list
+ * @mode_list: list to sort
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Sort @mode_list by favorability, putting good modes first.
+ */
+void drm_mode_sort(struct list_head *mode_list)
+{
+ list_sort(mode_list, drm_mode_compare);
+}
+EXPORT_SYMBOL(drm_mode_sort);
+
+/**
+ * drm_mode_connector_list_update - update the mode list for the connector
+ * @connector: the connector to update
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * This moves the modes from the @connector probed_modes list
+ * to the actual mode list. It compares the probed mode against the current
+ * list and only adds different modes. All modes unverified after this point
+ * will be removed by the prune invalid modes.
+ */
+void drm_mode_connector_list_update(struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+ struct drm_display_mode *pmode, *pt;
+ int found_it;
+
+ list_for_each_entry_safe(pmode, pt, &connector->probed_modes,
+ head) {
+ found_it = 0;
+ /* go through current modes checking for the new probed mode */
+ list_for_each_entry(mode, &connector->modes, head) {
+ if (drm_mode_equal(pmode, mode)) {
+ found_it = 1;
+ /* if equal delete the probed mode */
+ mode->status = pmode->status;
+ /* Merge type bits together */
+ mode->type |= pmode->type;
+ list_del(&pmode->head);
+ drm_mode_destroy(connector->dev, pmode);
+ break;
+ }
+ }
+
+ if (!found_it) {
+ list_move_tail(&pmode->head, &connector->modes);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_list_update);
--- /dev/null
+/* drm_pci.h -- PCI DMA memory management wrappers for DRM -*- linux-c -*- */
+/**
+ * \file drm_pci.c
+ * \brief Functions and ioctls to manage PCI memory
+ *
+ * \warning These interfaces aren't stable yet.
+ *
+ * \todo Implement the remaining ioctl's for the PCI pools.
+ * \todo The wrappers here are so thin that they would be better off inlined..
+ *
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ * \author Leif Delgass <ldelgass@retinalburn.net>
+ */
+
+/*
+ * Copyright 2003 José Fonseca.
+ * Copyright 2003 Leif Delgass.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include "drmP.h"
+
+/**********************************************************************/
+/** \name PCI memory */
+/*@{*/
+
+/**
+ * \brief Allocate a PCI consistent memory block, for DMA.
+ */
+drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align,
+ dma_addr_t maxaddr)
+{
+ drm_dma_handle_t *dmah;
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ /* pci_alloc_consistent only guarantees alignment to the smallest
+ * PAGE_SIZE order which is greater than or equal to the requested size.
+ * Return NULL here for now to make sure nobody tries for larger alignment
+ */
+ if (align > size)
+ return NULL;
+
+ if (pci_set_dma_mask(dev->pdev, maxaddr) != 0) {
+ DRM_ERROR("Setting pci dma mask failed\n");
+ return NULL;
+ }
+
+ dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
+ if (!dmah)
+ return NULL;
+
+ dmah->size = size;
+ dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP);
+
+ if (dmah->vaddr == NULL) {
+ kfree(dmah);
+ return NULL;
+ }
+
+ memset(dmah->vaddr, 0, size);
+
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Reserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ SetPageReserved(virt_to_page(addr));
+ }
+
+ return dmah;
+}
+
+EXPORT_SYMBOL(drm_pci_alloc);
+
+/**
+ * \brief Free a PCI consistent memory block without freeing its descriptor.
+ *
+ * This function is for internal use in the Linux-specific DRM core code.
+ */
+void __drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ if (dmah->vaddr) {
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Unreserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = dmah->size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ }
+ dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr,
+ dmah->busaddr);
+ }
+}
+
+/**
+ * \brief Free a PCI consistent memory block
+ */
+void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+ __drm_pci_free(dev, dmah);
+ kfree(dmah);
+}
+
+EXPORT_SYMBOL(drm_pci_free);
+
+/*@}*/
--- /dev/null
+/**
+ * \file drm_proc.c
+ * /proc support for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * \par Acknowledgements:
+ * Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
+ * the problem with the proc files not outputting all their information.
+ */
+
+/*
+ * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+/**
+ * Proc file list.
+ */
+static struct drm_info_list drm_proc_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+ {"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
+
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node* node = PDE(inode)->data;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+static const struct file_operations drm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of proc files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI proc dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
+ */
+int drm_proc_create_files(struct drm_info_list *files, int count,
+ struct proc_dir_entry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct proc_dir_entry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ tmp->minor = minor;
+ tmp->info_ent = &files[i];
+ list_add(&tmp->list, &minor->proc_nodes.list);
+
+ ent = proc_create_data(files[i].name, S_IRUGO, root,
+ &drm_proc_fops, tmp);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, files[i].name);
+ list_del(&tmp->list);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ }
+ return 0;
+
+fail:
+ for (i = 0; i < count; i++)
+ remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
+ return ret;
+}
+
+/**
+ * Initialize the DRI proc filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI proc dir entry.
+ * \param dev_root resulting DRI device proc dir entry.
+ * \return root entry pointer on success, or NULL on failure.
+ *
+ * Create the DRI proc root entry "/proc/dri", the device proc root entry
+ * "/proc/dri/%minor%/", and each entry in proc_list as
+ * "/proc/dri/%minor%/%name%".
+ */
+int drm_proc_init(struct drm_minor *minor, int minor_id,
+ struct proc_dir_entry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->proc_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->proc_root = proc_mkdir(name, root);
+ if (!minor->proc_root) {
+ DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+ minor->proc_root, minor);
+ if (ret) {
+ remove_proc_entry(name, root);
+ minor->proc_root = NULL;
+ DRM_ERROR("Failed to create core drm proc files\n");
+ return ret;
+ }
+
+ if (dev->driver->proc_init) {
+ ret = dev->driver->proc_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/proc/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+int drm_proc_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ remove_proc_entry(files[i].name,
+ minor->proc_root);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * Cleanup the proc filesystem resources.
+ *
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
+ *
+ * Remove all proc entries created by proc_init().
+ */
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+
+ if (!root || !minor->proc_root)
+ return 0;
+
+ if (dev->driver->proc_cleanup)
+ dev->driver->proc_cleanup(minor);
+
+ drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
+
+ sprintf(name, "%d", minor->index);
+ remove_proc_entry(name, root);
+
+ return 0;
+}
+
--- /dev/null
+/**
+ * \file drm_scatter.c
+ * IOCTLs to manage scatter/gather memory
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include "drmP.h"
+
+#define DEBUG_SCATTER 0
+
+static inline void *drm_vmalloc_dma(unsigned long size)
+{
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL | _PAGE_NO_CACHE);
+#else
+ return vmalloc_32(size);
+#endif
+}
+
+void drm_sg_cleanup(struct drm_sg_mem * entry)
+{
+ struct page *page;
+ int i;
+
+ for (i = 0; i < entry->pages; i++) {
+ page = entry->pagelist[i];
+ if (page)
+ ClearPageReserved(page);
+ }
+
+ vfree(entry->virtual);
+
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+}
+
+#ifdef _LP64
+# define ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1)))
+#else
+# define ScatterHandle(x) (unsigned int)(x)
+#endif
+
+int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request)
+{
+ struct drm_sg_mem *entry;
+ unsigned long pages, i, j;
+
+ DRM_DEBUG("\n");
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (dev->sg)
+ return -EINVAL;
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages);
+
+ entry->pages = pages;
+ entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);
+ if (!entry->pagelist) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist));
+
+ entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);
+ if (!entry->busaddr) {
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+ memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr));
+
+ entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT);
+ if (!entry->virtual) {
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ /* This also forces the mapping of COW pages, so our page list
+ * will be valid. Please don't remove it...
+ */
+ memset(entry->virtual, 0, pages << PAGE_SHIFT);
+
+ entry->handle = ScatterHandle((unsigned long)entry->virtual);
+
+ DRM_DEBUG("handle = %08lx\n", entry->handle);
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ for (i = (unsigned long)entry->virtual, j = 0; j < pages;
+ i += PAGE_SIZE, j++) {
+ entry->pagelist[j] = vmalloc_to_page((void *)i);
+ if (!entry->pagelist[j])
+ goto failed;
+ SetPageReserved(entry->pagelist[j]);
+ }
+
+ request->handle = entry->handle;
+
+ dev->sg = entry;
+
+#if DEBUG_SCATTER
+ /* Verify that each page points to its virtual address, and vice
+ * versa.
+ */
+ {
+ int error = 0;
+
+ for (i = 0; i < pages; i++) {
+ unsigned long *tmp;
+
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0xcafebabe;
+ }
+ tmp = (unsigned long *)((u8 *) entry->virtual +
+ (PAGE_SIZE * i));
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ if (*tmp != 0xcafebabe && error == 0) {
+ error = 1;
+ DRM_ERROR("Scatter allocation error, "
+ "pagelist does not match "
+ "virtual mapping\n");
+ }
+ }
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0;
+ }
+ }
+ if (error == 0)
+ DRM_ERROR("Scatter allocation matches pagelist\n");
+ }
+#endif
+
+ return 0;
+
+ failed:
+ drm_sg_cleanup(entry);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_sg_alloc);
+
+
+int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+
+ return drm_sg_alloc(dev, request);
+
+}
+
+int drm_sg_free(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+ struct drm_sg_mem *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ entry = dev->sg;
+ dev->sg = NULL;
+
+ if (!entry || entry->handle != request->handle)
+ return -EINVAL;
+
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ drm_sg_cleanup(entry);
+
+ return 0;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple memory manager interface that keeps track on allocate regions on a
+ * per "owner" basis. All regions associated with an "owner" can be released
+ * with a simple call. Typically if the "owner" exists. The owner is any
+ * "unsigned long" identifier. Can typically be a pointer to a file private
+ * struct or a context identifier.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drm_sman.h"
+
+struct drm_owner_item {
+ struct drm_hash_item owner_hash;
+ struct list_head sman_list;
+ struct list_head mem_blocks;
+};
+
+void drm_sman_takedown(struct drm_sman * sman)
+{
+ drm_ht_remove(&sman->user_hash_tab);
+ drm_ht_remove(&sman->owner_hash_tab);
+ kfree(sman->mm);
+}
+
+EXPORT_SYMBOL(drm_sman_takedown);
+
+int
+drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
+ unsigned int user_order, unsigned int owner_order)
+{
+ int ret = 0;
+
+ sman->mm = (struct drm_sman_mm *) kcalloc(num_managers,
+ sizeof(*sman->mm),
+ GFP_KERNEL);
+ if (!sman->mm) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ sman->num_managers = num_managers;
+ INIT_LIST_HEAD(&sman->owner_items);
+ ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
+ if (ret)
+ goto out1;
+ ret = drm_ht_create(&sman->user_hash_tab, user_order);
+ if (!ret)
+ goto out;
+
+ drm_ht_remove(&sman->owner_hash_tab);
+out1:
+ kfree(sman->mm);
+out:
+ return ret;
+}
+
+EXPORT_SYMBOL(drm_sman_init);
+
+static void *drm_sman_mm_allocate(void *private, unsigned long size,
+ unsigned alignment)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ struct drm_mm_node *tmp;
+
+ tmp = drm_mm_search_free(mm, size, alignment, 1);
+ if (!tmp) {
+ return NULL;
+ }
+ tmp = drm_mm_get_block(tmp, size, alignment);
+ return tmp;
+}
+
+static void drm_sman_mm_free(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+
+ drm_mm_put_block(node);
+}
+
+static void drm_sman_mm_destroy(void *private)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ drm_mm_takedown(mm);
+ kfree(mm);
+}
+
+static unsigned long drm_sman_mm_offset(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+ return node->start;
+}
+
+int
+drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
+ unsigned long start, unsigned long size)
+{
+ struct drm_sman_mm *sman_mm;
+ struct drm_mm *mm;
+ int ret;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ mm = kzalloc(sizeof(*mm), GFP_KERNEL);
+ if (!mm) {
+ return -ENOMEM;
+ }
+ sman_mm->private = mm;
+ ret = drm_mm_init(mm, start, size);
+
+ if (ret) {
+ kfree(mm);
+ return ret;
+ }
+
+ sman_mm->allocate = drm_sman_mm_allocate;
+ sman_mm->free = drm_sman_mm_free;
+ sman_mm->destroy = drm_sman_mm_destroy;
+ sman_mm->offset = drm_sman_mm_offset;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_set_range);
+
+int
+drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
+ struct drm_sman_mm * allocator)
+{
+ BUG_ON(manager >= sman->num_managers);
+ sman->mm[manager] = *allocator;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_sman_set_manager);
+
+static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
+ unsigned long owner)
+{
+ int ret;
+ struct drm_hash_item *owner_hash_item;
+ struct drm_owner_item *owner_item;
+
+ ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
+ if (!ret) {
+ return drm_hash_entry(owner_hash_item, struct drm_owner_item,
+ owner_hash);
+ }
+
+ owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
+ if (!owner_item)
+ goto out;
+
+ INIT_LIST_HEAD(&owner_item->mem_blocks);
+ owner_item->owner_hash.key = owner;
+ if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
+ goto out1;
+
+ list_add_tail(&owner_item->sman_list, &sman->owner_items);
+ return owner_item;
+
+out1:
+ kfree(owner_item);
+out:
+ return NULL;
+}
+
+struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
+ unsigned long size, unsigned alignment,
+ unsigned long owner)
+{
+ void *tmp;
+ struct drm_sman_mm *sman_mm;
+ struct drm_owner_item *owner_item;
+ struct drm_memblock_item *memblock;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ tmp = sman_mm->allocate(sman_mm->private, size, alignment);
+
+ if (!tmp) {
+ return NULL;
+ }
+
+ memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
+
+ if (!memblock)
+ goto out;
+
+ memblock->mm_info = tmp;
+ memblock->mm = sman_mm;
+ memblock->sman = sman;
+
+ if (drm_ht_just_insert_please
+ (&sman->user_hash_tab, &memblock->user_hash,
+ (unsigned long)memblock, 32, 0, 0))
+ goto out1;
+
+ owner_item = drm_sman_get_owner_item(sman, owner);
+ if (!owner_item)
+ goto out2;
+
+ list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
+
+ return memblock;
+
+out2:
+ drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
+out1:
+ kfree(memblock);
+out:
+ sman_mm->free(sman_mm->private, tmp);
+
+ return NULL;
+}
+
+EXPORT_SYMBOL(drm_sman_alloc);
+
+static void drm_sman_free(struct drm_memblock_item *item)
+{
+ struct drm_sman *sman = item->sman;
+
+ list_del(&item->owner_list);
+ drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
+ item->mm->free(item->mm->private, item->mm_info);
+ kfree(item);
+}
+
+int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
+{
+ struct drm_hash_item *hash_item;
+ struct drm_memblock_item *memblock_item;
+
+ if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
+ return -EINVAL;
+
+ memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
+ user_hash);
+ drm_sman_free(memblock_item);
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_free_key);
+
+static void drm_sman_remove_owner(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ list_del(&owner_item->sman_list);
+ drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
+ kfree(owner_item);
+}
+
+int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+ return -1;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
+ drm_sman_remove_owner(sman, owner_item);
+ return -1;
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_owner_clean);
+
+static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ struct drm_memblock_item *entry, *next;
+
+ list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
+ owner_list) {
+ drm_sman_free(entry);
+ }
+ drm_sman_remove_owner(sman, owner_item);
+}
+
+void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+
+ return;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ drm_sman_do_owner_cleanup(sman, owner_item);
+}
+
+EXPORT_SYMBOL(drm_sman_owner_cleanup);
+
+void drm_sman_cleanup(struct drm_sman *sman)
+{
+ struct drm_owner_item *entry, *next;
+ unsigned int i;
+ struct drm_sman_mm *sman_mm;
+
+ list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
+ drm_sman_do_owner_cleanup(sman, entry);
+ }
+ if (sman->mm) {
+ for (i = 0; i < sman->num_managers; ++i) {
+ sman_mm = &sman->mm[i];
+ if (sman_mm->private) {
+ sman_mm->destroy(sman_mm->private);
+ sman_mm->private = NULL;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_sman_cleanup);
--- /dev/null
+/**
+ * \file drm_stub.h
+ * Stub support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
+ *
+ * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+unsigned int drm_debug = 0; /* 1 to enable debug output */
+EXPORT_SYMBOL(drm_debug);
+
+MODULE_AUTHOR(CORE_AUTHOR);
+MODULE_DESCRIPTION(CORE_DESC);
+MODULE_LICENSE("GPL and additional rights");
+MODULE_PARM_DESC(debug, "Enable debug output");
+
+module_param_named(debug, drm_debug, int, 0600);
+
+struct idr drm_minors_idr;
+
+struct class *drm_class;
+struct proc_dir_entry *drm_proc_root;
+struct dentry *drm_debugfs_root;
+void drm_ut_debug_printk(unsigned int request_level,
+ const char *prefix,
+ const char *function_name,
+ const char *format, ...)
+{
+ va_list args;
+
+ if (drm_debug & request_level) {
+ if (function_name)
+ printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
+ va_start(args, format);
+ vprintk(format, args);
+ va_end(args);
+ }
+}
+EXPORT_SYMBOL(drm_ut_debug_printk);
+static int drm_minor_get_id(struct drm_device *dev, int type)
+{
+ int new_id;
+ int ret;
+ int base = 0, limit = 63;
+
+ if (type == DRM_MINOR_CONTROL) {
+ base += 64;
+ limit = base + 127;
+ } else if (type == DRM_MINOR_RENDER) {
+ base += 128;
+ limit = base + 255;
+ }
+
+again:
+ if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&drm_minors_idr, NULL,
+ base, &new_id);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret == -EAGAIN) {
+ goto again;
+ } else if (ret) {
+ return ret;
+ }
+
+ if (new_id >= limit) {
+ idr_remove(&drm_minors_idr, new_id);
+ return -EINVAL;
+ }
+ return new_id;
+}
+
+struct drm_master *drm_master_create(struct drm_minor *minor)
+{
+ struct drm_master *master;
+
+ master = kzalloc(sizeof(*master), GFP_KERNEL);
+ if (!master)
+ return NULL;
+
+ kref_init(&master->refcount);
+ spin_lock_init(&master->lock.spinlock);
+ init_waitqueue_head(&master->lock.lock_queue);
+ drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ INIT_LIST_HEAD(&master->magicfree);
+ master->minor = minor;
+
+ list_add_tail(&master->head, &minor->master_list);
+
+ return master;
+}
+
+struct drm_master *drm_master_get(struct drm_master *master)
+{
+ kref_get(&master->refcount);
+ return master;
+}
+EXPORT_SYMBOL(drm_master_get);
+
+static void drm_master_destroy(struct kref *kref)
+{
+ struct drm_master *master = container_of(kref, struct drm_master, refcount);
+ struct drm_magic_entry *pt, *next;
+ struct drm_device *dev = master->minor->dev;
+ struct drm_map_list *r_list, *list_temp;
+
+ list_del(&master->head);
+
+ if (dev->driver->master_destroy)
+ dev->driver->master_destroy(dev, master);
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
+ if (r_list->master == master) {
+ drm_rmmap_locked(dev, r_list->map);
+ r_list = NULL;
+ }
+ }
+
+ if (master->unique) {
+ kfree(master->unique);
+ master->unique = NULL;
+ master->unique_len = 0;
+ }
+
+ list_for_each_entry_safe(pt, next, &master->magicfree, head) {
+ list_del(&pt->head);
+ drm_ht_remove_item(&master->magiclist, &pt->hash_item);
+ kfree(pt);
+ }
+
+ drm_ht_remove(&master->magiclist);
+
+ kfree(master);
+}
+
+void drm_master_put(struct drm_master **master)
+{
+ kref_put(&(*master)->refcount, drm_master_destroy);
+ *master = NULL;
+}
+EXPORT_SYMBOL(drm_master_put);
+
+int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ int ret = 0;
+
+ if (file_priv->is_master)
+ return 0;
+
+ if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master &&
+ file_priv->minor->master != file_priv->master) {
+ mutex_lock(&dev->struct_mutex);
+ file_priv->minor->master = drm_master_get(file_priv->master);
+ file_priv->is_master = 1;
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, file_priv, false);
+ if (unlikely(ret != 0)) {
+ file_priv->is_master = 0;
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return 0;
+}
+
+int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (!file_priv->is_master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, false);
+ drm_master_put(&file_priv->minor->master);
+ file_priv->is_master = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ int retcode;
+
+ INIT_LIST_HEAD(&dev->filelist);
+ INIT_LIST_HEAD(&dev->ctxlist);
+ INIT_LIST_HEAD(&dev->vmalist);
+ INIT_LIST_HEAD(&dev->maplist);
+ INIT_LIST_HEAD(&dev->vblank_event_list);
+
+ spin_lock_init(&dev->count_lock);
+ spin_lock_init(&dev->drw_lock);
+ spin_lock_init(&dev->event_lock);
+ init_timer(&dev->timer);
+ mutex_init(&dev->struct_mutex);
+ mutex_init(&dev->ctxlist_mutex);
+
+ idr_init(&dev->drw_idr);
+
+ dev->pdev = pdev;
+ dev->pci_device = pdev->device;
+ dev->pci_vendor = pdev->vendor;
+
+#ifdef __alpha__
+ dev->hose = pdev->sysdata;
+#endif
+
+ if (drm_ht_create(&dev->map_hash, 12)) {
+ return -ENOMEM;
+ }
+
+ /* the DRM has 6 basic counters */
+ dev->counters = 6;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+
+ dev->driver = driver;
+
+ if (drm_core_has_AGP(dev)) {
+ if (drm_device_is_agp(dev))
+ dev->agp = drm_agp_init(dev);
+ if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP)
+ && (dev->agp == NULL)) {
+ DRM_ERROR("Cannot initialize the agpgart module.\n");
+ retcode = -EINVAL;
+ goto error_out_unreg;
+ }
+ if (drm_core_has_MTRR(dev)) {
+ if (dev->agp)
+ dev->agp->agp_mtrr =
+ mtrr_add(dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size *
+ 1024 * 1024, MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+
+
+ retcode = drm_ctxbitmap_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot allocate memory for context bitmap.\n");
+ goto error_out_unreg;
+ }
+
+ if (driver->driver_features & DRIVER_GEM) {
+ retcode = drm_gem_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot initialize graphics execution "
+ "manager (GEM)\n");
+ goto error_out_unreg;
+ }
+ }
+
+ return 0;
+
+ error_out_unreg:
+ drm_lastclose(dev);
+ return retcode;
+}
+
+
+/**
+ * Get a secondary minor number.
+ *
+ * \param dev device data structure
+ * \param sec-minor structure to hold the assigned minor
+ * \return negative number on failure.
+ *
+ * Search an empty entry and initialize it to the given parameters, and
+ * create the proc init entry via proc_init(). This routines assigns
+ * minor numbers to secondary heads of multi-headed cards
+ */
+static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
+{
+ struct drm_minor *new_minor;
+ int ret;
+ int minor_id;
+
+ DRM_DEBUG("\n");
+
+ minor_id = drm_minor_get_id(dev, type);
+ if (minor_id < 0)
+ return minor_id;
+
+ new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
+ if (!new_minor) {
+ ret = -ENOMEM;
+ goto err_idr;
+ }
+
+ new_minor->type = type;
+ new_minor->device = MKDEV(DRM_MAJOR, minor_id);
+ new_minor->dev = dev;
+ new_minor->index = minor_id;
+ INIT_LIST_HEAD(&new_minor->master_list);
+
+ idr_replace(&drm_minors_idr, new_minor, minor_id);
+
+ if (type == DRM_MINOR_LEGACY) {
+ ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
+ goto err_mem;
+ }
+ } else
+ new_minor->proc_root = NULL;
+
+#if defined(CONFIG_DEBUG_FS)
+ ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
+ goto err_g2;
+ }
+#endif
+
+ ret = drm_sysfs_device_add(new_minor);
+ if (ret) {
+ printk(KERN_ERR
+ "DRM: Error sysfs_device_add.\n");
+ goto err_g2;
+ }
+ *minor = new_minor;
+
+ DRM_DEBUG("new minor assigned %d\n", minor_id);
+ return 0;
+
+
+err_g2:
+ if (new_minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(new_minor, drm_proc_root);
+err_mem:
+ kfree(new_minor);
+err_idr:
+ idr_remove(&drm_minors_idr, minor_id);
+ *minor = NULL;
+ return ret;
+}
+
+/**
+ * Register.
+ *
+ * \param pdev - PCI device structure
+ * \param ent entry from the PCI ID table with device type flags
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to gets inter module "drm" information. If we are first
+ * then register the character device and inter module information.
+ * Try and register, if we fail to register, backout previous work.
+ */
+int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ struct drm_device *dev;
+ int ret;
+
+ DRM_DEBUG("\n");
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_g1;
+
+ pci_set_master(pdev);
+ if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) {
+ printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
+ goto err_g2;
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ pci_set_drvdata(pdev, dev);
+ ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
+ if (ret)
+ goto err_g2;
+ }
+
+ if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
+ goto err_g3;
+
+ if (dev->driver->load) {
+ ret = dev->driver->load(dev, ent->driver_data);
+ if (ret)
+ goto err_g4;
+ }
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
+ if (ret)
+ goto err_g4;
+ }
+
+ list_add_tail(&dev->driver_item, &driver->device_list);
+
+ DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
+ driver->name, driver->major, driver->minor, driver->patchlevel,
+ driver->date, pci_name(pdev), dev->primary->index);
+
+ return 0;
+
+err_g4:
+ drm_put_minor(&dev->primary);
+err_g3:
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+err_g2:
+ pci_disable_device(pdev);
+err_g1:
+ kfree(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_get_dev);
+
+/**
+ * Put a secondary minor number.
+ *
+ * \param sec_minor - structure to be released
+ * \return always zero
+ *
+ * Cleans up the proc resources. Not legal for this to be the
+ * last minor released.
+ *
+ */
+int drm_put_minor(struct drm_minor **minor_p)
+{
+ struct drm_minor *minor = *minor_p;
+
+ DRM_DEBUG("release secondary minor %d\n", minor->index);
+
+ if (minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(minor, drm_proc_root);
+#if defined(CONFIG_DEBUG_FS)
+ drm_debugfs_cleanup(minor);
+#endif
+
+ drm_sysfs_device_remove(minor);
+
+ idr_remove(&drm_minors_idr, minor->index);
+
+ kfree(minor);
+ *minor_p = NULL;
+ return 0;
+}
+
+/**
+ * Called via drm_exit() at module unload time or when pci device is
+ * unplugged.
+ *
+ * Cleans up all DRM device, calling drm_lastclose().
+ *
+ * \sa drm_init
+ */
+void drm_put_dev(struct drm_device *dev)
+{
+ struct drm_driver *driver;
+ struct drm_map_list *r_list, *list_temp;
+
+ DRM_DEBUG("\n");
+
+ if (!dev) {
+ DRM_ERROR("cleanup called no dev\n");
+ return;
+ }
+ driver = dev->driver;
+
+ drm_vblank_cleanup(dev);
+
+ drm_lastclose(dev);
+
+ if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->agp_mtrr >= 0) {
+ int retval;
+ retval = mtrr_del(dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size * 1024 * 1024);
+ DRM_DEBUG("mtrr_del=%d\n", retval);
+ }
+
+ if (dev->driver->unload)
+ dev->driver->unload(dev);
+
+ if (drm_core_has_AGP(dev) && dev->agp) {
+ kfree(dev->agp);
+ dev->agp = NULL;
+ }
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+ drm_rmmap(dev, r_list->map);
+ drm_ht_remove(&dev->map_hash);
+
+ drm_ctxbitmap_cleanup(dev);
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+
+ if (driver->driver_features & DRIVER_GEM)
+ drm_gem_destroy(dev);
+
+ drm_put_minor(&dev->primary);
+
+ if (dev->devname) {
+ kfree(dev->devname);
+ dev->devname = NULL;
+ }
+ kfree(dev);
+}
+EXPORT_SYMBOL(drm_put_dev);
--- /dev/null
+
+/*
+ * drm_sysfs.c - Modifications to drm_sysfs_class.c to support
+ * extra sysfs attribute from DRM. Normal drm_sysfs_class
+ * does not allow adding attributes.
+ *
+ * Copyright (c) 2004 Jon Smirl <jonsmirl@gmail.com>
+ * Copyright (c) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2003-2004 IBM Corp.
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+#include <linux/err.h>
+
+#include "drm_sysfs.h"
+#include "drm_core.h"
+#include "drmP.h"
+
+#define to_drm_minor(d) container_of(d, struct drm_minor, kdev)
+#define to_drm_connector(d) container_of(d, struct drm_connector, kdev)
+
+static struct device_type drm_sysfs_device_minor = {
+ .name = "drm_minor"
+};
+
+/**
+ * drm_class_suspend - DRM class suspend hook
+ * @dev: Linux device to suspend
+ * @state: power state to enter
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its suspend hook, if present.
+ */
+static int drm_class_suspend(struct device *dev, pm_message_t state)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->suspend)
+ return drm_dev->driver->suspend(drm_dev, state);
+ }
+ return 0;
+}
+
+/**
+ * drm_class_resume - DRM class resume hook
+ * @dev: Linux device to resume
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its resume hook, if present.
+ */
+static int drm_class_resume(struct device *dev)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->resume)
+ return drm_dev->driver->resume(drm_dev);
+ }
+ return 0;
+}
+
+/* Display the version of drm_core. This doesn't work right in current design */
+static ssize_t version_show(struct class *dev, char *buf)
+{
+ return sprintf(buf, "%s %d.%d.%d %s\n", CORE_NAME, CORE_MAJOR,
+ CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+}
+
+static char *drm_devnode(struct device *dev, mode_t *mode)
+{
+ return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
+}
+
+static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
+
+/**
+ * drm_sysfs_create - create a struct drm_sysfs_class structure
+ * @owner: pointer to the module that is to "own" this struct drm_sysfs_class
+ * @name: pointer to a string for the name of this class.
+ *
+ * This is used to create DRM class pointer that can then be used
+ * in calls to drm_sysfs_device_add().
+ *
+ * Note, the pointer created here is to be destroyed when finished by making a
+ * call to drm_sysfs_destroy().
+ */
+struct class *drm_sysfs_create(struct module *owner, char *name)
+{
+ struct class *class;
+ int err;
+
+ class = class_create(owner, name);
+ if (IS_ERR(class)) {
+ err = PTR_ERR(class);
+ goto err_out;
+ }
+
+ class->suspend = drm_class_suspend;
+ class->resume = drm_class_resume;
+
+ err = class_create_file(class, &class_attr_version);
+ if (err)
+ goto err_out_class;
+
+ class->devnode = drm_devnode;
+
+ return class;
+
+err_out_class:
+ class_destroy(class);
+err_out:
+ return ERR_PTR(err);
+}
+
+/**
+ * drm_sysfs_destroy - destroys DRM class
+ *
+ * Destroy the DRM device class.
+ */
+void drm_sysfs_destroy(void)
+{
+ if ((drm_class == NULL) || (IS_ERR(drm_class)))
+ return;
+ class_remove_file(drm_class, &class_attr_version);
+ class_destroy(drm_class);
+}
+
+/**
+ * drm_sysfs_device_release - do nothing
+ * @dev: Linux device
+ *
+ * Normally, this would free the DRM device associated with @dev, along
+ * with cleaning up any other stuff. But we do that in the DRM core, so
+ * this function can just return and hope that the core does its job.
+ */
+static void drm_sysfs_device_release(struct device *dev)
+{
+ memset(dev, 0, sizeof(struct device));
+ return;
+}
+
+/*
+ * Connector properties
+ */
+static ssize_t status_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ enum drm_connector_status status;
+
+ status = connector->funcs->detect(connector);
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_connector_status_name(status));
+}
+
+static ssize_t dpms_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ uint64_t dpms_status;
+ int ret;
+
+ ret = drm_connector_property_get_value(connector,
+ dev->mode_config.dpms_property,
+ &dpms_status);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_dpms_name((int)dpms_status));
+}
+
+static ssize_t enabled_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", connector->encoder ? "enabled" :
+ "disabled");
+}
+
+static ssize_t edid_show(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct device *connector_dev = container_of(kobj, struct device, kobj);
+ struct drm_connector *connector = to_drm_connector(connector_dev);
+ unsigned char *edid;
+ size_t size;
+
+ if (!connector->edid_blob_ptr)
+ return 0;
+
+ edid = connector->edid_blob_ptr->data;
+ size = connector->edid_blob_ptr->length;
+ if (!edid)
+ return 0;
+
+ if (off >= size)
+ return 0;
+
+ if (off + count > size)
+ count = size - off;
+ memcpy(buf, edid + off, count);
+
+ return count;
+}
+
+static ssize_t modes_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_display_mode *mode;
+ int written = 0;
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ written += snprintf(buf + written, PAGE_SIZE - written, "%s\n",
+ mode->name);
+ }
+
+ return written;
+}
+
+static ssize_t subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_subconnector_name((int)subconnector) :
+ drm_get_dvi_i_subconnector_name((int)subconnector));
+}
+
+static ssize_t select_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_select_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_select_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find select subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_select_name((int)subconnector) :
+ drm_get_dvi_i_select_name((int)subconnector));
+}
+
+static struct device_attribute connector_attrs[] = {
+ __ATTR_RO(status),
+ __ATTR_RO(enabled),
+ __ATTR_RO(dpms),
+ __ATTR_RO(modes),
+};
+
+/* These attributes are for both DVI-I connectors and all types of tv-out. */
+static struct device_attribute connector_attrs_opt1[] = {
+ __ATTR_RO(subconnector),
+ __ATTR_RO(select_subconnector),
+};
+
+static struct bin_attribute edid_attr = {
+ .attr.name = "edid",
+ .attr.mode = 0444,
+ .size = 128,
+ .read = edid_show,
+};
+
+/**
+ * drm_sysfs_connector_add - add an connector to sysfs
+ * @connector: connector to add
+ *
+ * Create an connector device in sysfs, along with its associated connector
+ * properties (so far, connection status, dpms, mode list & edid) and
+ * generate a hotplug event so userspace knows there's a new connector
+ * available.
+ *
+ * Note:
+ * This routine should only be called *once* for each DRM minor registered.
+ * A second call for an already registered device will trigger the BUG_ON
+ * below.
+ */
+int drm_sysfs_connector_add(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ int ret = 0, i, j;
+
+ /* We shouldn't get called more than once for the same connector */
+ BUG_ON(device_is_registered(&connector->kdev));
+
+ connector->kdev.parent = &dev->primary->kdev;
+ connector->kdev.class = drm_class;
+ connector->kdev.release = drm_sysfs_device_release;
+
+ DRM_DEBUG("adding \"%s\" to sysfs\n",
+ drm_get_connector_name(connector));
+
+ dev_set_name(&connector->kdev, "card%d-%s",
+ dev->primary->index, drm_get_connector_name(connector));
+ ret = device_register(&connector->kdev);
+
+ if (ret) {
+ DRM_ERROR("failed to register connector device: %d\n", ret);
+ goto out;
+ }
+
+ /* Standard attributes */
+
+ for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs[i]);
+ if (ret)
+ goto err_out_files;
+ }
+
+ /* Optional attributes */
+ /*
+ * In the long run it maybe a good idea to make one set of
+ * optionals per connector type.
+ */
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ for (i = 0; i < ARRAY_SIZE(connector_attrs_opt1); i++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs_opt1[i]);
+ if (ret)
+ goto err_out_files;
+ }
+ break;
+ default:
+ break;
+ }
+
+ ret = sysfs_create_bin_file(&connector->kdev.kobj, &edid_attr);
+ if (ret)
+ goto err_out_files;
+
+ /* Let userspace know we have a new connector */
+ drm_sysfs_hotplug_event(dev);
+
+ return 0;
+
+err_out_files:
+ if (i > 0)
+ for (j = 0; j < i; j++)
+ device_remove_file(&connector->kdev,
+ &connector_attrs[i]);
+ device_unregister(&connector->kdev);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(drm_sysfs_connector_add);
+
+/**
+ * drm_sysfs_connector_remove - remove an connector device from sysfs
+ * @connector: connector to remove
+ *
+ * Remove @connector and its associated attributes from sysfs. Note that
+ * the device model core will take care of sending the "remove" uevent
+ * at this time, so we don't need to do it.
+ *
+ * Note:
+ * This routine should only be called if the connector was previously
+ * successfully registered. If @connector hasn't been registered yet,
+ * you'll likely see a panic somewhere deep in sysfs code when called.
+ */
+void drm_sysfs_connector_remove(struct drm_connector *connector)
+{
+ int i;
+
+ DRM_DEBUG("removing \"%s\" from sysfs\n",
+ drm_get_connector_name(connector));
+
+ for (i = 0; i < ARRAY_SIZE(connector_attrs); i++)
+ device_remove_file(&connector->kdev, &connector_attrs[i]);
+ sysfs_remove_bin_file(&connector->kdev.kobj, &edid_attr);
+ device_unregister(&connector->kdev);
+}
+EXPORT_SYMBOL(drm_sysfs_connector_remove);
+
+/**
+ * drm_sysfs_hotplug_event - generate a DRM uevent
+ * @dev: DRM device
+ *
+ * Send a uevent for the DRM device specified by @dev. Currently we only
+ * set HOTPLUG=1 in the uevent environment, but this could be expanded to
+ * deal with other types of events.
+ */
+void drm_sysfs_hotplug_event(struct drm_device *dev)
+{
+ char *event_string = "HOTPLUG=1";
+ char *envp[] = { event_string, NULL };
+
+ DRM_DEBUG("generating hotplug event\n");
+
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
+}
+EXPORT_SYMBOL(drm_sysfs_hotplug_event);
+
+/**
+ * drm_sysfs_device_add - adds a class device to sysfs for a character driver
+ * @dev: DRM device to be added
+ * @head: DRM head in question
+ *
+ * Add a DRM device to the DRM's device model class. We use @dev's PCI device
+ * as the parent for the Linux device, and make sure it has a file containing
+ * the driver we're using (for userspace compatibility).
+ */
+int drm_sysfs_device_add(struct drm_minor *minor)
+{
+ int err;
+ char *minor_str;
+
+ minor->kdev.parent = &minor->dev->pdev->dev;
+ minor->kdev.class = drm_class;
+ minor->kdev.release = drm_sysfs_device_release;
+ minor->kdev.devt = minor->device;
+ minor->kdev.type = &drm_sysfs_device_minor;
+ if (minor->type == DRM_MINOR_CONTROL)
+ minor_str = "controlD%d";
+ else if (minor->type == DRM_MINOR_RENDER)
+ minor_str = "renderD%d";
+ else
+ minor_str = "card%d";
+
+ dev_set_name(&minor->kdev, minor_str, minor->index);
+
+ err = device_register(&minor->kdev);
+ if (err) {
+ DRM_ERROR("device add failed: %d\n", err);
+ goto err_out;
+ }
+
+ return 0;
+
+err_out:
+ return err;
+}
+
+/**
+ * drm_sysfs_device_remove - remove DRM device
+ * @dev: DRM device to remove
+ *
+ * This call unregisters and cleans up a class device that was created with a
+ * call to drm_sysfs_device_add()
+ */
+void drm_sysfs_device_remove(struct drm_minor *minor)
+{
+ device_unregister(&minor->kdev);
+}
+
+
+/**
+ * drm_class_device_register - Register a struct device in the drm class.
+ *
+ * @dev: pointer to struct device to register.
+ *
+ * @dev should have all relevant members pre-filled with the exception
+ * of the class member. In particular, the device_type member must
+ * be set.
+ */
+
+int drm_class_device_register(struct device *dev)
+{
+ dev->class = drm_class;
+ return device_register(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_register);
+
+void drm_class_device_unregister(struct device *dev)
+{
+ return device_unregister(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_unregister);
--- /dev/null
+/**
+ * \file drm_vm.c
+ * Memory mapping for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#if defined(__ia64__)
+#include <linux/efi.h>
+#endif
+
+static void drm_vm_open(struct vm_area_struct *vma);
+static void drm_vm_close(struct vm_area_struct *vma);
+
+static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__i386__) || defined(__x86_64__)
+ if (boot_cpu_data.x86 > 3 && map_type != _DRM_AGP) {
+ pgprot_val(tmp) |= _PAGE_PCD;
+ pgprot_val(tmp) &= ~_PAGE_PWT;
+ }
+#elif defined(__powerpc__)
+ pgprot_val(tmp) |= _PAGE_NO_CACHE;
+ if (map_type == _DRM_REGISTERS)
+ pgprot_val(tmp) |= _PAGE_GUARDED;
+#elif defined(__ia64__)
+ if (efi_range_is_wc(vma->vm_start, vma->vm_end -
+ vma->vm_start))
+ tmp = pgprot_writecombine(tmp);
+ else
+ tmp = pgprot_noncached(tmp);
+#elif defined(__sparc__)
+ tmp = pgprot_noncached(tmp);
+#endif
+ return tmp;
+}
+
+static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ tmp |= _PAGE_NO_CACHE;
+#endif
+ return tmp;
+}
+
+/**
+ * \c fault method for AGP virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Find the right map and if it's AGP memory find the real physical page to
+ * map, get the page, increment the use count and return it.
+ */
+#if __OS_HAS_AGP
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ struct drm_hash_item *hash;
+
+ /*
+ * Find the right map
+ */
+ if (!drm_core_has_AGP(dev))
+ goto vm_fault_error;
+
+ if (!dev->agp || !dev->agp->cant_use_aperture)
+ goto vm_fault_error;
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash))
+ goto vm_fault_error;
+
+ r_list = drm_hash_entry(hash, struct drm_map_list, hash);
+ map = r_list->map;
+
+ if (map && map->type == _DRM_AGP) {
+ /*
+ * Using vm_pgoff as a selector forces us to use this unusual
+ * addressing scheme.
+ */
+ resource_size_t offset = (unsigned long)vmf->virtual_address -
+ vma->vm_start;
+ resource_size_t baddr = map->offset + offset;
+ struct drm_agp_mem *agpmem;
+ struct page *page;
+
+#ifdef __alpha__
+ /*
+ * Adjust to a bus-relative address
+ */
+ baddr -= dev->hose->mem_space->start;
+#endif
+
+ /*
+ * It's AGP memory - find the real physical page to map
+ */
+ list_for_each_entry(agpmem, &dev->agp->memory, head) {
+ if (agpmem->bound <= baddr &&
+ agpmem->bound + agpmem->pages * PAGE_SIZE > baddr)
+ break;
+ }
+
+ if (!agpmem)
+ goto vm_fault_error;
+
+ /*
+ * Get the page, inc the use count, and return it
+ */
+ offset = (baddr - agpmem->bound) >> PAGE_SHIFT;
+ page = agpmem->memory->pages[offset];
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG
+ ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n",
+ (unsigned long long)baddr,
+ agpmem->memory->pages[offset],
+ (unsigned long long)offset,
+ page_count(page));
+ return 0;
+ }
+vm_fault_error:
+ return VM_FAULT_SIGBUS; /* Disallow mremap */
+}
+#else /* __OS_HAS_AGP */
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+#endif /* __OS_HAS_AGP */
+
+/**
+ * \c nopage method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Get the mapping, find the real physical page to map, get the page, and
+ * return it.
+ */
+static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ unsigned long offset;
+ unsigned long i;
+ struct page *page;
+
+ if (!map)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ i = (unsigned long)map->handle + offset;
+ page = vmalloc_to_page((void *)i);
+ if (!page)
+ return VM_FAULT_SIGBUS;
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("shm_fault 0x%lx\n", offset);
+ return 0;
+}
+
+/**
+ * \c close method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Deletes map information if we are the last
+ * person to close a mapping and it's not in the global maplist.
+ */
+static void drm_vm_shm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+ int found_maps = 0;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ map = vma->vm_private_data;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma->vm_private_data == map)
+ found_maps++;
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ }
+ }
+
+ /* We were the only map that was found */
+ if (found_maps == 1 && map->flags & _DRM_REMOVABLE) {
+ /* Check to see if we are in the maplist, if we are not, then
+ * we delete this mappings information.
+ */
+ found_maps = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map == map)
+ found_maps++;
+ }
+
+ if (!found_maps) {
+ drm_dma_handle_t dmah;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+ iounmap(map->handle);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * \c fault method for DMA virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the page number from the page offset and get it from drm_device_dma::pagelist.
+ */
+static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_device_dma *dma = dev->dma;
+ unsigned long offset;
+ unsigned long page_nr;
+ struct page *page;
+
+ if (!dma)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!dma->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
+ page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */
+ page = virt_to_page((dma->pagelist[page_nr] + (offset & (~PAGE_MASK))));
+
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("dma_fault 0x%lx (page %lu)\n", offset, page_nr);
+ return 0;
+}
+
+/**
+ * \c fault method for scatter-gather virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
+ */
+static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long offset;
+ unsigned long map_offset;
+ unsigned long page_offset;
+ struct page *page;
+
+ if (!entry)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!entry->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ map_offset = map->offset - (unsigned long)dev->sg->virtual;
+ page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT);
+ page = entry->pagelist[page_offset];
+ get_page(page);
+ vmf->page = page;
+
+ return 0;
+}
+
+static int drm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_fault(vma, vmf);
+}
+
+static int drm_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_shm_fault(vma, vmf);
+}
+
+static int drm_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_dma_fault(vma, vmf);
+}
+
+static int drm_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_sg_fault(vma, vmf);
+}
+
+/** AGP virtual memory operations */
+static const struct vm_operations_struct drm_vm_ops = {
+ .fault = drm_vm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Shared virtual memory operations */
+static const struct vm_operations_struct drm_vm_shm_ops = {
+ .fault = drm_vm_shm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_shm_close,
+};
+
+/** DMA virtual memory operations */
+static const struct vm_operations_struct drm_vm_dma_ops = {
+ .fault = drm_vm_dma_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Scatter-gather virtual memory operations */
+static const struct vm_operations_struct drm_vm_sg_ops = {
+ .fault = drm_vm_sg_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/**
+ * \c open method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Create a new drm_vma_entry structure as the \p vma private data entry and
+ * add it to drm_device::vmalist.
+ */
+void drm_vm_open_locked(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *vma_entry;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_inc(&dev->vma_count);
+
+ vma_entry = kmalloc(sizeof(*vma_entry), GFP_KERNEL);
+ if (vma_entry) {
+ vma_entry->vma = vma;
+ vma_entry->pid = current->pid;
+ list_add(&vma_entry->head, &dev->vmalist);
+ }
+}
+
+static void drm_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_vm_open_locked(vma);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * \c close method for all virtual memory types.
+ *
+ * \param vma virtual memory area.
+ *
+ * Search the \p vma private data entry in drm_device::vmalist, unlink it, and
+ * free it.
+ */
+static void drm_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ break;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * Sets the virtual memory area operations structure to vm_dma_ops, the file
+ * pointer, and calls vm_open().
+ */
+static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev;
+ struct drm_device_dma *dma;
+ unsigned long length = vma->vm_end - vma->vm_start;
+
+ dev = priv->minor->dev;
+ dma = dev->dma;
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ /* Length must match exact page count */
+ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
+ return -EINVAL;
+ }
+
+ if (!capable(CAP_SYS_ADMIN) &&
+ (dma->flags & _DRM_DMA_USE_PCI_RO)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ vma->vm_ops = &drm_vm_dma_ops;
+
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+resource_size_t drm_core_get_map_ofs(struct drm_local_map * map)
+{
+ return map->offset;
+}
+
+EXPORT_SYMBOL(drm_core_get_map_ofs);
+
+resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
+{
+#ifdef __alpha__
+ return dev->hose->dense_mem_base - dev->hose->mem_space->start;
+#else
+ return 0;
+#endif
+}
+
+EXPORT_SYMBOL(drm_core_get_reg_ofs);
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the virtual memory area has no offset associated with it then it's a DMA
+ * area, so calls mmap_dma(). Otherwise searches the map in drm_device::maplist,
+ * checks that the restricted flag is not set, sets the virtual memory operations
+ * according to the mapping type and remaps the pages. Finally sets the file
+ * pointer and calls vm_open().
+ */
+int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ resource_size_t offset = 0;
+ struct drm_hash_item *hash;
+
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ if (!priv->authenticated)
+ return -EACCES;
+
+ /* We check for "dma". On Apple's UniNorth, it's valid to have
+ * the AGP mapped at physical address 0
+ * --BenH.
+ */
+ if (!vma->vm_pgoff
+#if __OS_HAS_AGP
+ && (!dev->agp
+ || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE)
+#endif
+ )
+ return drm_mmap_dma(filp, vma);
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) {
+ DRM_ERROR("Could not find map\n");
+ return -EINVAL;
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
+ return -EPERM;
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ switch (map->type) {
+ case _DRM_AGP:
+ if (drm_core_has_AGP(dev) && dev->agp->cant_use_aperture) {
+ /*
+ * On some platforms we can't talk to bus dma address from the CPU, so for
+ * memory of type DRM_AGP, we'll deal with sorting out the real physical
+ * pages and mappings in fault()
+ */
+#if defined(__powerpc__)
+ pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+#endif
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ }
+ /* fall through to _DRM_FRAME_BUFFER... */
+ case _DRM_FRAME_BUFFER:
+ case _DRM_REGISTERS:
+ offset = dev->driver->get_reg_ofs(dev);
+ vma->vm_flags |= VM_IO; /* not in core dump */
+ vma->vm_page_prot = drm_io_prot(map->type, vma);
+ if (io_remap_pfn_range(vma, vma->vm_start,
+ (map->offset + offset) >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+ DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
+ " offset = 0x%llx\n",
+ map->type,
+ vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset));
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ case _DRM_CONSISTENT:
+ /* Consistent memory is really like shared memory. But
+ * it's allocated in a different way, so avoid fault */
+ if (remap_pfn_range(vma, vma->vm_start,
+ page_to_pfn(virt_to_page(map->handle)),
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ /* fall through to _DRM_SHM */
+ case _DRM_SHM:
+ vma->vm_ops = &drm_vm_shm_ops;
+ vma->vm_private_data = (void *)map;
+ /* Don't let this area swap. Change when
+ DRM_KERNEL advisory is supported. */
+ vma->vm_flags |= VM_RESERVED;
+ break;
+ case _DRM_SCATTER_GATHER:
+ vma->vm_ops = &drm_vm_sg_ops;
+ vma->vm_private_data = (void *)map;
+ vma->vm_flags |= VM_RESERVED;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ break;
+ default:
+ return -EINVAL; /* This should never happen. */
+ }
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+int drm_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_mmap_locked(filp, vma);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mmap);
--- /dev/null
+/**
+ * \file ati_pcigart.c
+ * ATI PCI GART support
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
+
+static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
+ PAGE_SIZE,
+ gart_info->table_mask);
+ if (gart_info->table_handle == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void drm_ati_free_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ drm_pci_free(dev, gart_info->table_handle);
+ gart_info->table_handle = NULL;
+}
+
+int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long pages;
+ int i;
+ int max_pages;
+
+ /* we need to support large memory configurations */
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ return 0;
+ }
+
+ if (gart_info->bus_addr) {
+
+ max_pages = (gart_info->table_size / sizeof(u32));
+ pages = (entry->pages <= max_pages)
+ ? entry->pages : max_pages;
+
+ for (i = 0; i < pages; i++) {
+ if (!entry->busaddr[i])
+ break;
+ pci_unmap_page(dev->pdev, entry->busaddr[i],
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
+ gart_info->bus_addr = 0;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
+ gart_info->table_handle) {
+ drm_ati_free_pcigart_table(dev, gart_info);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
+
+int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_local_map *map = &gart_info->mapping;
+ struct drm_sg_mem *entry = dev->sg;
+ void *address = NULL;
+ unsigned long pages;
+ u32 *pci_gart = NULL, page_base, gart_idx;
+ dma_addr_t bus_address = 0;
+ int i, j, ret = 0;
+ int max_ati_pages, max_real_pages;
+
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ goto done;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
+
+ ret = drm_ati_alloc_pcigart_table(dev, gart_info);
+ if (ret) {
+ DRM_ERROR("cannot allocate PCI GART page!\n");
+ goto done;
+ }
+
+ pci_gart = gart_info->table_handle->vaddr;
+ address = gart_info->table_handle->vaddr;
+ bus_address = gart_info->table_handle->busaddr;
+ } else {
+ address = gart_info->addr;
+ bus_address = gart_info->bus_addr;
+ DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
+ (unsigned long long)bus_address,
+ (unsigned long)address);
+ }
+
+
+ max_ati_pages = (gart_info->table_size / sizeof(u32));
+ max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE);
+ pages = (entry->pages <= max_real_pages)
+ ? entry->pages : max_real_pages;
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ memset(pci_gart, 0, max_ati_pages * sizeof(u32));
+ } else {
+ memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32));
+ }
+
+ gart_idx = 0;
+ for (i = 0; i < pages; i++) {
+ /* we need to support large memory configurations */
+ entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i],
+ 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (entry->busaddr[i] == 0) {
+ DRM_ERROR("unable to map PCIGART pages!\n");
+ drm_ati_pcigart_cleanup(dev, gart_info);
+ address = NULL;
+ bus_address = 0;
+ goto done;
+ }
+ page_base = (u32) entry->busaddr[i];
+
+ for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
+ u32 val;
+
+ switch(gart_info->gart_reg_if) {
+ case DRM_ATI_GART_IGP:
+ val = page_base | 0xc;
+ break;
+ case DRM_ATI_GART_PCIE:
+ val = (page_base >> 8) | 0xc;
+ break;
+ default:
+ case DRM_ATI_GART_PCI:
+ val = page_base;
+ break;
+ }
+ if (gart_info->gart_table_location ==
+ DRM_ATI_GART_MAIN)
+ pci_gart[gart_idx] = cpu_to_le32(val);
+ else
+ DRM_WRITE32(map, gart_idx * sizeof(u32), val);
+ gart_idx++;
+ page_base += ATI_PCIGART_PAGE_SIZE;
+ }
+ }
+ ret = 1;
+
+#if defined(__i386__) || defined(__x86_64__)
+ wbinvd();
+#else
+ mb();
+#endif
+
+ done:
+ gart_info->addr = address;
+ gart_info->bus_addr = bus_address;
+ return ret;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_init);
--- /dev/null
+/**
+ * \file drm_agpsupport.c
+ * DRM support for AGP/GART backend
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/module.h>
+
+#if __OS_HAS_AGP
+
+#include <asm/agp.h>
+
+/**
+ * Get AGP information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a (output) drm_agp_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been initialized and acquired and fills in the
+ * drm_agp_info structure with the information in drm_agp_head::agp_info.
+ */
+int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info)
+{
+ DRM_AGP_KERN *kern;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ kern = &dev->agp->agp_info;
+ info->agp_version_major = kern->version.major;
+ info->agp_version_minor = kern->version.minor;
+ info->mode = kern->mode;
+ info->aperture_base = kern->aper_base;
+ info->aperture_size = kern->aper_size * 1024 * 1024;
+ info->memory_allowed = kern->max_memory << PAGE_SHIFT;
+ info->memory_used = kern->current_memory << PAGE_SHIFT;
+ info->id_vendor = kern->device->vendor;
+ info->id_device = kern->device->device;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_info);
+
+int drm_agp_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_info *info = data;
+ int err;
+
+ err = drm_agp_info(dev, info);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/**
+ * Acquire the AGP device.
+ *
+ * \param dev DRM device that is to acquire AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire(struct drm_device * dev)
+{
+ if (!dev->agp)
+ return -ENODEV;
+ if (dev->agp->acquired)
+ return -EBUSY;
+ if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev)))
+ return -ENODEV;
+ dev->agp->acquired = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_acquire);
+
+/**
+ * Acquire the AGP device (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_acquire((struct drm_device *) file_priv->minor->dev);
+}
+
+/**
+ * Release the AGP device.
+ *
+ * \param dev DRM device that is to release AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired and calls \c agp_backend_release.
+ */
+int drm_agp_release(struct drm_device * dev)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ agp_backend_release(dev->agp->bridge);
+ dev->agp->acquired = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_release);
+
+int drm_agp_release_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_release(dev);
+}
+
+/**
+ * Enable the AGP bus.
+ *
+ * \param dev DRM device that has previously acquired AGP.
+ * \param mode Requested AGP mode.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired but not enabled, and calls
+ * \c agp_enable.
+ */
+int drm_agp_enable(struct drm_device * dev, struct drm_agp_mode mode)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ dev->agp->mode = mode.mode;
+ agp_enable(dev->agp->bridge, mode.mode);
+ dev->agp->enabled = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_enable);
+
+int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_mode *mode = data;
+
+ return drm_agp_enable(dev, *mode);
+}
+
+/**
+ * Allocate AGP memory.
+ *
+ * \param inode device inode.
+ * \param file_priv file private pointer.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired, allocates the
+ * memory via alloc_agp() and creates a drm_agp_mem entry for it.
+ */
+int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+ DRM_AGP_MEM *memory;
+ unsigned long pages;
+ u32 type;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ type = (u32) request->type;
+ if (!(memory = drm_alloc_agp(dev, pages, type))) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ entry->handle = (unsigned long)memory->key + 1;
+ entry->memory = memory;
+ entry->bound = 0;
+ entry->pages = pages;
+ list_add(&entry->head, &dev->agp->memory);
+
+ request->handle = entry->handle;
+ request->physical = memory->physical;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_alloc);
+
+
+int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_alloc(dev, request);
+}
+
+/**
+ * Search for the AGP memory entry associated with a handle.
+ *
+ * \param dev DRM device structure.
+ * \param handle AGP memory handle.
+ * \return pointer to the drm_agp_mem structure associated with \p handle.
+ *
+ * Walks through drm_agp_head::memory until finding a matching handle.
+ */
+static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device * dev,
+ unsigned long handle)
+{
+ struct drm_agp_mem *entry;
+
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if (entry->handle == handle)
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+ * Unbind AGP memory from the GATT (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and acquired, looks-up the AGP memory
+ * entry and passes it to the unbind_agp() function.
+ */
+int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int ret;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (!entry->bound)
+ return -EINVAL;
+ ret = drm_unbind_agp(entry->memory);
+ if (ret == 0)
+ entry->bound = 0;
+ return ret;
+}
+EXPORT_SYMBOL(drm_agp_unbind);
+
+
+int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_unbind(dev, request);
+}
+
+/**
+ * Bind AGP memory into the GATT (ioctl)
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and that no memory
+ * is currently bound into the GATT. Looks-up the AGP memory entry and passes
+ * it to bind_agp() function.
+ */
+int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int retcode;
+ int page;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ return -EINVAL;
+ page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
+ if ((retcode = drm_bind_agp(entry->memory, page)))
+ return retcode;
+ entry->bound = dev->agp->base + (page << PAGE_SHIFT);
+ DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
+ dev->agp->base, entry->bound);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_bind);
+
+
+int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_bind(dev, request);
+}
+
+/**
+ * Free AGP memory (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and looks up the
+ * AGP memory entry. If the memory it's currently bound, unbind it via
+ * unbind_agp(). Frees it via free_agp() as well as the entry itself
+ * and unlinks from the doubly linked list it's inserted in.
+ */
+int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+
+ list_del(&entry->head);
+
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_free);
+
+
+
+int drm_agp_free_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_free(dev, request);
+}
+
+/**
+ * Initialize the AGP resources.
+ *
+ * \return pointer to a drm_agp_head structure.
+ *
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
+ */
+struct drm_agp_head *drm_agp_init(struct drm_device *dev)
+{
+ struct drm_agp_head *head = NULL;
+
+ if (!(head = kmalloc(sizeof(*head), GFP_KERNEL)))
+ return NULL;
+ memset((void *)head, 0, sizeof(*head));
+ head->bridge = agp_find_bridge(dev->pdev);
+ if (!head->bridge) {
+ if (!(head->bridge = agp_backend_acquire(dev->pdev))) {
+ kfree(head);
+ return NULL;
+ }
+ agp_copy_info(head->bridge, &head->agp_info);
+ agp_backend_release(head->bridge);
+ } else {
+ agp_copy_info(head->bridge, &head->agp_info);
+ }
+ if (head->agp_info.chipset == NOT_SUPPORTED) {
+ kfree(head);
+ return NULL;
+ }
+ INIT_LIST_HEAD(&head->memory);
+ head->cant_use_aperture = head->agp_info.cant_use_aperture;
+ head->page_mask = head->agp_info.page_mask;
+ head->base = head->agp_info.aper_base;
+ return head;
+}
+
+/** Calls agp_allocate_memory() */
+DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data * bridge,
+ size_t pages, u32 type)
+{
+ return agp_allocate_memory(bridge, pages, type);
+}
+
+/** Calls agp_free_memory() */
+int drm_agp_free_memory(DRM_AGP_MEM * handle)
+{
+ if (!handle)
+ return 0;
+ agp_free_memory(handle);
+ return 1;
+}
+
+/** Calls agp_bind_memory() */
+int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start)
+{
+ if (!handle)
+ return -EINVAL;
+ return agp_bind_memory(handle, start);
+}
+
+/** Calls agp_unbind_memory() */
+int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
+{
+ if (!handle)
+ return -EINVAL;
+ return agp_unbind_memory(handle);
+}
+
+/**
+ * Binds a collection of pages into AGP memory at the given offset, returning
+ * the AGP memory structure containing them.
+ *
+ * No reference is held on the pages during this time -- it is up to the
+ * caller to handle that.
+ */
+DRM_AGP_MEM *
+drm_agp_bind_pages(struct drm_device *dev,
+ struct page **pages,
+ unsigned long num_pages,
+ uint32_t gtt_offset,
+ u32 type)
+{
+ DRM_AGP_MEM *mem;
+ int ret, i;
+
+ DRM_DEBUG("\n");
+
+ mem = drm_agp_allocate_memory(dev->agp->bridge, num_pages,
+ type);
+ if (mem == NULL) {
+ DRM_ERROR("Failed to allocate memory for %ld pages\n",
+ num_pages);
+ return NULL;
+ }
+
+ for (i = 0; i < num_pages; i++)
+ mem->pages[i] = pages[i];
+ mem->page_count = num_pages;
+
+ mem->is_flushed = true;
+ ret = drm_agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
+ if (ret != 0) {
+ DRM_ERROR("Failed to bind AGP memory: %d\n", ret);
+ agp_free_memory(mem);
+ return NULL;
+ }
+
+ return mem;
+}
+EXPORT_SYMBOL(drm_agp_bind_pages);
+
+void drm_agp_chipset_flush(struct drm_device *dev)
+{
+ agp_flush_chipset(dev->agp->bridge);
+}
+EXPORT_SYMBOL(drm_agp_chipset_flush);
+
+#endif /* __OS_HAS_AGP */
--- /dev/null
+/**
+ * \file drm_auth.c
+ * IOCTLs for authentication
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Find the file with the given magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches in drm_device::magiclist within all files with the same hash key
+ * the one with matching magic number, while holding the drm_device::struct_mutex
+ * lock.
+ */
+static struct drm_file *drm_find_file(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_file *retval = NULL;
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ if (!drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ retval = pt->priv;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return retval;
+}
+
+/**
+ * Adds a magic number.
+ *
+ * \param dev DRM device.
+ * \param priv file private data.
+ * \param magic magic number.
+ *
+ * Creates a drm_magic_entry structure and appends to the linked list
+ * associated the magic number hash key in drm_device::magiclist, while holding
+ * the drm_device::struct_mutex lock.
+ */
+static int drm_add_magic(struct drm_master *master, struct drm_file *priv,
+ drm_magic_t magic)
+{
+ struct drm_magic_entry *entry;
+ struct drm_device *dev = master->minor->dev;
+ DRM_DEBUG("%d\n", magic);
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+ memset(entry, 0, sizeof(*entry));
+ entry->priv = priv;
+ entry->hash_item.key = (unsigned long)magic;
+ mutex_lock(&dev->struct_mutex);
+ drm_ht_insert_item(&master->magiclist, &entry->hash_item);
+ list_add_tail(&entry->head, &master->magicfree);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Remove a magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches and unlinks the entry in drm_device::magiclist with the magic
+ * number hash key, while holding the drm_device::struct_mutex lock.
+ */
+static int drm_remove_magic(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ DRM_DEBUG("%d\n", magic);
+
+ mutex_lock(&dev->struct_mutex);
+ if (drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ drm_ht_remove_item(&master->magiclist, hash);
+ list_del(&pt->head);
+ mutex_unlock(&dev->struct_mutex);
+
+ kfree(pt);
+
+ return 0;
+}
+
+/**
+ * Get a unique magic number (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a resulting drm_auth structure.
+ * \return zero on success, or a negative number on failure.
+ *
+ * If there is a magic number in drm_file::magic then use it, otherwise
+ * searches an unique non-zero magic number and add it associating it with \p
+ * file_priv.
+ */
+int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ static drm_magic_t sequence = 0;
+ static DEFINE_SPINLOCK(lock);
+ struct drm_auth *auth = data;
+
+ /* Find unique magic */
+ if (file_priv->magic) {
+ auth->magic = file_priv->magic;
+ } else {
+ do {
+ spin_lock(&lock);
+ if (!sequence)
+ ++sequence; /* reserve 0 */
+ auth->magic = sequence++;
+ spin_unlock(&lock);
+ } while (drm_find_file(file_priv->master, auth->magic));
+ file_priv->magic = auth->magic;
+ drm_add_magic(file_priv->master, file_priv, auth->magic);
+ }
+
+ DRM_DEBUG("%u\n", auth->magic);
+
+ return 0;
+}
+
+/**
+ * Authenticate with a magic.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_auth structure.
+ * \return zero if authentication successed, or a negative number otherwise.
+ *
+ * Checks if \p file_priv is associated with the magic number passed in \arg.
+ */
+int drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_auth *auth = data;
+ struct drm_file *file;
+
+ DRM_DEBUG("%u\n", auth->magic);
+ if ((file = drm_find_file(file_priv->master, auth->magic))) {
+ file->authenticated = 1;
+ drm_remove_magic(file_priv->master, auth->magic);
+ return 0;
+ }
+ return -EINVAL;
+}
--- /dev/null
+/**
+ * \file drm_bufs.c
+ * Generic buffer template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/log2.h>
+#include <asm/shmparam.h>
+#include "drmP.h"
+
+resource_size_t drm_get_resource_start(struct drm_device *dev, unsigned int resource)
+{
+ return pci_resource_start(dev->pdev, resource);
+}
+EXPORT_SYMBOL(drm_get_resource_start);
+
+resource_size_t drm_get_resource_len(struct drm_device *dev, unsigned int resource)
+{
+ return pci_resource_len(dev->pdev, resource);
+}
+
+EXPORT_SYMBOL(drm_get_resource_len);
+
+static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
+ struct drm_local_map *map)
+{
+ struct drm_map_list *entry;
+ list_for_each_entry(entry, &dev->maplist, head) {
+ /*
+ * Because the kernel-userspace ABI is fixed at a 32-bit offset
+ * while PCI resources may live above that, we ignore the map
+ * offset for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+ * It is assumed that each driver will have only one resource of
+ * each type.
+ */
+ if (!entry->map ||
+ map->type != entry->map->type ||
+ entry->master != dev->primary->master)
+ continue;
+ switch (map->type) {
+ case _DRM_SHM:
+ if (map->flags != _DRM_CONTAINS_LOCK)
+ break;
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ return entry;
+ default: /* Make gcc happy */
+ ;
+ }
+ if (entry->map->offset == map->offset)
+ return entry;
+ }
+
+ return NULL;
+}
+
+static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
+ unsigned long user_token, int hashed_handle, int shm)
+{
+ int use_hashed_handle, shift;
+ unsigned long add;
+
+#if (BITS_PER_LONG == 64)
+ use_hashed_handle = ((user_token & 0xFFFFFFFF00000000UL) || hashed_handle);
+#elif (BITS_PER_LONG == 32)
+ use_hashed_handle = hashed_handle;
+#else
+#error Unsupported long size. Neither 64 nor 32 bits.
+#endif
+
+ if (!use_hashed_handle) {
+ int ret;
+ hash->key = user_token >> PAGE_SHIFT;
+ ret = drm_ht_insert_item(&dev->map_hash, hash);
+ if (ret != -EINVAL)
+ return ret;
+ }
+
+ shift = 0;
+ add = DRM_MAP_HASH_OFFSET >> PAGE_SHIFT;
+ if (shm && (SHMLBA > PAGE_SIZE)) {
+ int bits = ilog2(SHMLBA >> PAGE_SHIFT) + 1;
+
+ /* For shared memory, we have to preserve the SHMLBA
+ * bits of the eventual vma->vm_pgoff value during
+ * mmap(). Otherwise we run into cache aliasing problems
+ * on some platforms. On these platforms, the pgoff of
+ * a mmap() request is used to pick a suitable virtual
+ * address for the mmap() region such that it will not
+ * cause cache aliasing problems.
+ *
+ * Therefore, make sure the SHMLBA relevant bits of the
+ * hash value we use are equal to those in the original
+ * kernel virtual address.
+ */
+ shift = bits;
+ add |= ((user_token >> PAGE_SHIFT) & ((1UL << bits) - 1UL));
+ }
+
+ return drm_ht_just_insert_please(&dev->map_hash, hash,
+ user_token, 32 - PAGE_SHIFT - 3,
+ shift, add);
+}
+
+/**
+ * Core function to create a range of memory available for mapping by a
+ * non-root process.
+ *
+ * Adjusts the memory offset to its absolute value according to the mapping
+ * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where
+ * applicable and if supported by the kernel.
+ */
+static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags,
+ struct drm_map_list ** maplist)
+{
+ struct drm_local_map *map;
+ struct drm_map_list *list;
+ drm_dma_handle_t *dmah;
+ unsigned long user_token;
+ int ret;
+
+ map = kmalloc(sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ map->offset = offset;
+ map->size = size;
+ map->flags = flags;
+ map->type = type;
+
+ /* Only allow shared memory to be removable since we only keep enough
+ * book keeping information about shared memory to allow for removal
+ * when processes fork.
+ */
+ if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) {
+ kfree(map);
+ return -EINVAL;
+ }
+ DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n",
+ (unsigned long long)map->offset, map->size, map->type);
+
+ /* page-align _DRM_SHM maps. They are allocated here so there is no security
+ * hole created by that and it works around various broken drivers that use
+ * a non-aligned quantity to map the SAREA. --BenH
+ */
+ if (map->type == _DRM_SHM)
+ map->size = PAGE_ALIGN(map->size);
+
+ if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = NULL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
+ if (map->offset + (map->size-1) < map->offset ||
+ map->offset < virt_to_phys(high_memory)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#endif
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* Some drivers preinitialize some maps, without the X Server
+ * needing to be aware of it. Therefore, we just return success
+ * when the server tries to create a duplicate map.
+ */
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if (list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size,
+ list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+
+ if (drm_core_has_MTRR(dev)) {
+ if (map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING)) {
+ map->mtrr = mtrr_add(map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+ if (map->type == _DRM_REGISTERS) {
+ map->handle = ioremap(map->offset, map->size);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ }
+
+ break;
+ case _DRM_SHM:
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if(list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size, list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+ map->handle = vmalloc_user(map->size);
+ DRM_DEBUG("%lu %d %p\n",
+ map->size, drm_order(map->size), map->handle);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->offset = (unsigned long)map->handle;
+ if (map->flags & _DRM_CONTAINS_LOCK) {
+ /* Prevent a 2nd X Server from creating a 2nd lock */
+ if (dev->primary->master->lock.hw_lock != NULL) {
+ vfree(map->handle);
+ kfree(map);
+ return -EBUSY;
+ }
+ dev->sigdata.lock = dev->primary->master->lock.hw_lock = map->handle; /* Pointer to lock */
+ }
+ break;
+ case _DRM_AGP: {
+ struct drm_agp_mem *entry;
+ int valid = 0;
+
+ if (!drm_core_has_AGP(dev)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* In some cases (i810 driver), user space may have already
+ * added the AGP base itself, because dev->agp->base previously
+ * only got set during AGP enable. So, only add the base
+ * address if the map's offset isn't already within the
+ * aperture.
+ */
+ if (map->offset < dev->agp->base ||
+ map->offset > dev->agp->base +
+ dev->agp->agp_info.aper_size * 1024 * 1024 - 1) {
+ map->offset += dev->agp->base;
+ }
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+
+ /* This assumes the DRM is in total control of AGP space.
+ * It's not always the case as AGP can be in the control
+ * of user space (i.e. i810 driver). So this loop will get
+ * skipped and we double check that dev->agp->memory is
+ * actually set as well as being invalid before EPERM'ing
+ */
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if ((map->offset >= entry->bound) &&
+ (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ kfree(map);
+ return -EPERM;
+ }
+ DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n",
+ (unsigned long long)map->offset, map->size);
+
+ break;
+ }
+ case _DRM_GEM:
+ DRM_ERROR("tried to addmap GEM object\n");
+ break;
+ case _DRM_SCATTER_GATHER:
+ if (!dev->sg) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->offset += (unsigned long)dev->sg->virtual;
+ break;
+ case _DRM_CONSISTENT:
+ /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G,
+ * As we're limiting the address to 2^32-1 (or less),
+ * casting it down to 32 bits is no problem, but we
+ * need to point to a 64bit variable first. */
+ dmah = drm_pci_alloc(dev, map->size, map->size, 0xffffffffUL);
+ if (!dmah) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->handle = dmah->vaddr;
+ map->offset = (unsigned long)dmah->busaddr;
+ kfree(dmah);
+ break;
+ default:
+ kfree(map);
+ return -EINVAL;
+ }
+
+ list = kmalloc(sizeof(*list), GFP_KERNEL);
+ if (!list) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ return -EINVAL;
+ }
+ memset(list, 0, sizeof(*list));
+ list->map = map;
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&list->head, &dev->maplist);
+
+ /* Assign a 32-bit handle */
+ /* We do it here so that dev->struct_mutex protects the increment */
+ user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle :
+ map->offset;
+ ret = drm_map_handle(dev, &list->hash, user_token, 0,
+ (map->type == _DRM_SHM));
+ if (ret) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ kfree(list);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ list->user_token = list->hash.key << PAGE_SHIFT;
+ mutex_unlock(&dev->struct_mutex);
+
+ if (!(map->flags & _DRM_DRIVER))
+ list->master = dev->primary->master;
+ *maplist = list;
+ return 0;
+ }
+
+int drm_addmap(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map ** map_ptr)
+{
+ struct drm_map_list *list;
+ int rc;
+
+ rc = drm_addmap_core(dev, offset, size, type, flags, &list);
+ if (!rc)
+ *map_ptr = list->map;
+ return rc;
+}
+
+EXPORT_SYMBOL(drm_addmap);
+
+/**
+ * Ioctl to specify a range of memory that is available for mapping by a
+ * non-root process.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_map structure.
+ * \return zero on success or a negative value on error.
+ *
+ */
+int drm_addmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *maplist;
+ int err;
+
+ if (!(capable(CAP_SYS_ADMIN) || map->type == _DRM_AGP || map->type == _DRM_SHM))
+ return -EPERM;
+
+ err = drm_addmap_core(dev, map->offset, map->size, map->type,
+ map->flags, &maplist);
+
+ if (err)
+ return err;
+
+ /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */
+ map->handle = (void *)(unsigned long)maplist->user_token;
+ return 0;
+}
+
+/**
+ * Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ *
+ * Searches the map on drm_device::maplist, removes it from the list, see if
+ * its being used, and free any associate resource (such as MTRR's) if it's not
+ * being on use.
+ *
+ * \sa drm_addmap
+ */
+int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map)
+{
+ struct drm_map_list *r_list = NULL, *list_t;
+ drm_dma_handle_t dmah;
+ int found = 0;
+ struct drm_master *master;
+
+ /* Find the list entry for the map and remove it */
+ list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
+ if (r_list->map == map) {
+ master = r_list->master;
+ list_del(&r_list->head);
+ drm_ht_remove_key(&dev->map_hash,
+ r_list->user_token >> PAGE_SHIFT);
+ kfree(r_list);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ iounmap(map->handle);
+ /* FALLTHROUGH */
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr, map->offset, map->size);
+ DRM_DEBUG("mtrr_del=%d\n", retcode);
+ }
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ if (master) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_rmmap_locked);
+
+int drm_rmmap(struct drm_device *dev, struct drm_local_map *map)
+{
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_rmmap_locked(dev, map);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_rmmap);
+
+/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on
+ * the last close of the device, and this is necessary for cleanup when things
+ * exit uncleanly. Therefore, having userland manually remove mappings seems
+ * like a pointless exercise since they're going away anyway.
+ *
+ * One use case might be after addmap is allowed for normal users for SHM and
+ * gets used by drivers that the server doesn't need to care about. This seems
+ * unlikely.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_map structure.
+ * \return zero on success or a negative value on error.
+ */
+int drm_rmmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map &&
+ r_list->user_token == (unsigned long)request->handle &&
+ r_list->map->flags & _DRM_REMOVABLE) {
+ map = r_list->map;
+ break;
+ }
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if (list_empty(&dev->maplist) || !map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ /* Register and framebuffer maps are permanent */
+ if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ ret = drm_rmmap_locked(dev, map);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+/**
+ * Cleanup after an error on one of the addbufs() functions.
+ *
+ * \param dev DRM device.
+ * \param entry buffer entry where the error occurred.
+ *
+ * Frees any pages and buffers associated with the given entry.
+ */
+static void drm_cleanup_buf_error(struct drm_device * dev,
+ struct drm_buf_entry * entry)
+{
+ int i;
+
+ if (entry->seg_count) {
+ for (i = 0; i < entry->seg_count; i++) {
+ if (entry->seglist[i]) {
+ drm_pci_free(dev, entry->seglist[i]);
+ }
+ }
+ kfree(entry->seglist);
+
+ entry->seg_count = 0;
+ }
+
+ if (entry->buf_count) {
+ for (i = 0; i < entry->buf_count; i++) {
+ kfree(entry->buflist[i].dev_private);
+ }
+ kfree(entry->buflist);
+
+ entry->buf_count = 0;
+ }
+}
+
+#if __OS_HAS_AGP
+/**
+ * Add AGP buffers for DMA transfers.
+ *
+ * \param dev struct drm_device to which the buffers are to be added.
+ * \param request pointer to a struct drm_buf_desc describing the request.
+ * \return zero on success or a negative number on failure.
+ *
+ * After some sanity checks creates a drm_buf structure for each buffer and
+ * reallocates the buffer list of the same size order to accommodate the new
+ * buffers.
+ */
+int drm_addbufs_agp(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_agp_mem *agp_entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i, valid;
+ struct drm_buf **temp_buflist;
+
+ if (!dma)
+ return -EINVAL;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = dev->agp->base + request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lx\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ /* Make sure buffers are located in AGP memory that we own */
+ valid = 0;
+ list_for_each_entry(agp_entry, &dev->agp->memory, head) {
+ if ((agp_offset >= agp_entry->bound) &&
+ (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ DRM_DEBUG("zone invalid\n");
+ return -EINVAL;
+ }
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+EXPORT_SYMBOL(drm_addbufs_agp);
+#endif /* __OS_HAS_AGP */
+
+int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int count;
+ int order;
+ int size;
+ int total;
+ int page_order;
+ struct drm_buf_entry *entry;
+ drm_dma_handle_t *dmah;
+ struct drm_buf *buf;
+ int alignment;
+ unsigned long offset;
+ int i;
+ int byte_count;
+ int page_count;
+ unsigned long *temp_pagelist;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ DRM_DEBUG("count=%d, size=%d (%d), order=%d, queue_count=%d\n",
+ request->count, request->size, size, order, dev->queue_count);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->seglist = kmalloc(count * sizeof(*entry->seglist), GFP_KERNEL);
+ if (!entry->seglist) {
+ kfree(entry->buflist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->seglist, 0, count * sizeof(*entry->seglist));
+
+ /* Keep the original pagelist until we know all the allocations
+ * have succeeded
+ */
+ temp_pagelist = kmalloc((dma->page_count + (count << page_order)) *
+ sizeof(*dma->pagelist), GFP_KERNEL);
+ if (!temp_pagelist) {
+ kfree(entry->buflist);
+ kfree(entry->seglist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memcpy(temp_pagelist,
+ dma->pagelist, dma->page_count * sizeof(*dma->pagelist));
+ DRM_DEBUG("pagelist: %d entries\n",
+ dma->page_count + (count << page_order));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+ byte_count = 0;
+ page_count = 0;
+
+ while (entry->buf_count < count) {
+
+ dmah = drm_pci_alloc(dev, PAGE_SIZE << page_order, 0x1000, 0xfffffffful);
+
+ if (!dmah) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ entry->seglist[entry->seg_count++] = dmah;
+ for (i = 0; i < (1 << page_order); i++) {
+ DRM_DEBUG("page %d @ 0x%08lx\n",
+ dma->page_count + page_count,
+ (unsigned long)dmah->vaddr + PAGE_SIZE * i);
+ temp_pagelist[dma->page_count + page_count++]
+ = (unsigned long)dmah->vaddr + PAGE_SIZE * i;
+ }
+ for (offset = 0;
+ offset + size <= total && entry->buf_count < count;
+ offset += alignment, ++entry->buf_count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+ buf->offset = (dma->byte_count + byte_count + offset);
+ buf->address = (void *)(dmah->vaddr + offset);
+ buf->bus_address = dmah->busaddr + offset;
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size,
+ GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n",
+ entry->buf_count, buf->address);
+ }
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ /* No allocations failed, so now we can replace the orginal pagelist
+ * with the new one.
+ */
+ if (dma->page_count) {
+ kfree(dma->pagelist);
+ }
+ dma->pagelist = temp_pagelist;
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += entry->seg_count << page_order;
+ dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ if (request->flags & _DRM_PCI_BUFFER_RO)
+ dma->flags = _DRM_DMA_USE_PCI_RO;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+
+}
+EXPORT_SYMBOL(drm_addbufs_pci);
+
+static int drm_addbufs_sg(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset
+ + (unsigned long)dev->sg->virtual);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_SG;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+static int drm_addbufs_fb(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_FB_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ if (dev->queue_count)
+ return -EBUSY; /* Not while in use */
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kmalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head(&buf->dma_wait);
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kmalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memset(buf->dev_private, 0, buf->dev_priv_size);
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_FB;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+
+/**
+ * Add buffers for DMA transfers (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_buf_desc request.
+ * \return zero on success or a negative number on failure.
+ *
+ * According with the memory type specified in drm_buf_desc::flags and the
+ * build options, it dispatches the call either to addbufs_agp(),
+ * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent
+ * PCI memory respectively.
+ */
+int drm_addbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_buf_desc *request = data;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+#if __OS_HAS_AGP
+ if (request->flags & _DRM_AGP_BUFFER)
+ ret = drm_addbufs_agp(dev, request);
+ else
+#endif
+ if (request->flags & _DRM_SG_BUFFER)
+ ret = drm_addbufs_sg(dev, request);
+ else if (request->flags & _DRM_FB_BUFFER)
+ ret = drm_addbufs_fb(dev, request);
+ else
+ ret = drm_addbufs_pci(dev, request);
+
+ return ret;
+}
+
+/**
+ * Get information about the buffer mappings.
+ *
+ * This was originally mean for debugging purposes, or by a sophisticated
+ * client library to determine how best to use the available buffers (e.g.,
+ * large buffers can be used for image transfer).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Increments drm_device::buf_use while holding the drm_device::count_lock
+ * lock, preventing of allocating more buffers after this call. Information
+ * about each requested buffer is then copied into user space.
+ */
+int drm_infobufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_info *request = data;
+ int i;
+ int count;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count)
+ ++count;
+ }
+
+ DRM_DEBUG("count = %d\n", count);
+
+ if (request->count >= count) {
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count) {
+ struct drm_buf_desc __user *to =
+ &request->list[count];
+ struct drm_buf_entry *from = &dma->bufs[i];
+ struct drm_freelist *list = &dma->bufs[i].freelist;
+ if (copy_to_user(&to->count,
+ &from->buf_count,
+ sizeof(from->buf_count)) ||
+ copy_to_user(&to->size,
+ &from->buf_size,
+ sizeof(from->buf_size)) ||
+ copy_to_user(&to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark)) ||
+ copy_to_user(&to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d %d %d %d %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].freelist.low_mark,
+ dma->bufs[i].freelist.high_mark);
+ ++count;
+ }
+ }
+ }
+ request->count = count;
+
+ return 0;
+}
+
+/**
+ * Specifies a low and high water mark for buffer allocation
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg a pointer to a drm_buf_desc structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies that the size order is bounded between the admissible orders and
+ * updates the respective drm_device_dma::bufs entry low and high water mark.
+ *
+ * \note This ioctl is deprecated and mostly never used.
+ */
+int drm_markbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_desc *request = data;
+ int order;
+ struct drm_buf_entry *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d, %d, %d\n",
+ request->size, request->low_mark, request->high_mark);
+ order = drm_order(request->size);
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ entry = &dma->bufs[order];
+
+ if (request->low_mark < 0 || request->low_mark > entry->buf_count)
+ return -EINVAL;
+ if (request->high_mark < 0 || request->high_mark > entry->buf_count)
+ return -EINVAL;
+
+ entry->freelist.low_mark = request->low_mark;
+ entry->freelist.high_mark = request->high_mark;
+
+ return 0;
+}
+
+/**
+ * Unreserve the buffers in list, previously reserved using drmDMA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_free structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls free_buffer() for each used buffer.
+ * This function is primarily used for debugging.
+ */
+int drm_freebufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_free *request = data;
+ int i;
+ int idx;
+ struct drm_buf *buf;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d\n", request->count);
+ for (i = 0; i < request->count; i++) {
+ if (copy_from_user(&idx, &request->list[i], sizeof(idx)))
+ return -EFAULT;
+ if (idx < 0 || idx >= dma->buf_count) {
+ DRM_ERROR("Index %d (of %d max)\n",
+ idx, dma->buf_count - 1);
+ return -EINVAL;
+ }
+ buf = dma->buflist[idx];
+ if (buf->file_priv != file_priv) {
+ DRM_ERROR("Process %d freeing buffer not owned\n",
+ task_pid_nr(current));
+ return -EINVAL;
+ }
+ drm_free_buffer(dev, buf);
+ }
+
+ return 0;
+}
+
+/**
+ * Maps all of the DMA buffers into client-virtual space (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information
+ * about each buffer into user space. For PCI buffers, it calls do_mmap() with
+ * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls
+ * drm_mmap_dma().
+ */
+int drm_mapbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ struct drm_buf_map *request = data;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ if (request->count >= dma->buf_count) {
+ if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP))
+ || (drm_core_check_feature(dev, DRIVER_SG)
+ && (dma->flags & _DRM_DMA_USE_SG))
+ || (drm_core_check_feature(dev, DRIVER_FB_DMA)
+ && (dma->flags & _DRM_DMA_USE_FB))) {
+ struct drm_local_map *map = dev->agp_buffer_map;
+ unsigned long token = dev->agp_buffer_token;
+
+ if (!map) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ token);
+ up_write(¤t->mm->mmap_sem);
+ } else {
+ down_write(¤t->mm->mmap_sem);
+ virtual = do_mmap(file_priv->filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0);
+ up_write(¤t->mm->mmap_sem);
+ }
+ if (virtual > -1024UL) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request->virtual = (void __user *)virtual;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ if (copy_to_user(&request->list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request->list[0].idx))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request->list[0].total))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].used,
+ &zero, sizeof(zero))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if (copy_to_user(&request->list[i].address,
+ &address, sizeof(address))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ done:
+ request->count = dma->buf_count;
+ DRM_DEBUG("%d buffers, retcode = %d\n", request->count, retcode);
+
+ return retcode;
+}
+
+/**
+ * Compute size order. Returns the exponent of the smaller power of two which
+ * is greater or equal to given number.
+ *
+ * \param size size.
+ * \return order.
+ *
+ * \todo Can be made faster.
+ */
+int drm_order(unsigned long size)
+{
+ int order;
+ unsigned long tmp;
+
+ for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ;
+
+ if (size & (size - 1))
+ ++order;
+
+ return order;
+}
+EXPORT_SYMBOL(drm_order);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+
+#if defined(CONFIG_X86)
+static void
+drm_clflush_page(struct page *page)
+{
+ uint8_t *page_virtual;
+ unsigned int i;
+
+ if (unlikely(page == NULL))
+ return;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ clflush(page_virtual + i);
+ kunmap_atomic(page_virtual, KM_USER0);
+}
+
+static void drm_cache_flush_clflush(struct page *pages[],
+ unsigned long num_pages)
+{
+ unsigned long i;
+
+ mb();
+ for (i = 0; i < num_pages; i++)
+ drm_clflush_page(*pages++);
+ mb();
+}
+
+static void
+drm_clflush_ipi_handler(void *null)
+{
+ wbinvd();
+}
+#endif
+
+void
+drm_clflush_pages(struct page *pages[], unsigned long num_pages)
+{
+
+#if defined(CONFIG_X86)
+ if (cpu_has_clflush) {
+ drm_cache_flush_clflush(pages, num_pages);
+ return;
+ }
+
+ if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
+ printk(KERN_ERR "Timed out waiting for cache flush.\n");
+
+#elif defined(__powerpc__)
+ unsigned long i;
+ for (i = 0; i < num_pages; i++) {
+ struct page *page = pages[i];
+ void *page_virtual;
+
+ if (unlikely(page == NULL))
+ continue;
+
+ page_virtual = kmap_atomic(page, KM_USER0);
+ flush_dcache_range((unsigned long)page_virtual,
+ (unsigned long)page_virtual + PAGE_SIZE);
+ kunmap_atomic(page_virtual, KM_USER0);
+ }
+#else
+ printk(KERN_ERR "Architecture has no drm_cache.c support\n");
+ WARN_ON_ONCE(1);
+#endif
+}
+EXPORT_SYMBOL(drm_clflush_pages);
--- /dev/null
+/**
+ * \file drm_context.c
+ * IOCTLs for generic contexts
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Nov 24 18:31:37 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * ChangeLog:
+ * 2001-11-16 Torsten Duwe <duwe@caldera.de>
+ * added context constructor/destructor hooks,
+ * needed by SiS driver's memory management.
+ */
+
+#include "drmP.h"
+
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
+/**
+ * Free a handle from the context bitmap.
+ *
+ * \param dev DRM device.
+ * \param ctx_handle context handle.
+ *
+ * Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry
+ * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
+ * lock.
+ */
+void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove(&dev->ctx_idr, ctx_handle);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Context bitmap allocation.
+ *
+ * \param dev DRM device.
+ * \return (non-negative) context handle on success or a negative number on failure.
+ *
+ * Allocate a new idr from drm_device::ctx_idr while holding the
+ * drm_device::struct_mutex lock.
+ */
+static int drm_ctxbitmap_next(struct drm_device * dev)
+{
+ int new_id;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->ctx_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&dev->ctx_idr, NULL,
+ DRM_RESERVED_CONTEXTS, &new_id);
+ if (ret == -EAGAIN) {
+ mutex_unlock(&dev->struct_mutex);
+ goto again;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return new_id;
+}
+
+/**
+ * Context bitmap initialization.
+ *
+ * \param dev DRM device.
+ *
+ * Initialise the drm_device::ctx_idr
+ */
+int drm_ctxbitmap_init(struct drm_device * dev)
+{
+ idr_init(&dev->ctx_idr);
+ return 0;
+}
+
+/**
+ * Context bitmap cleanup.
+ *
+ * \param dev DRM device.
+ *
+ * Free all idr members using drm_ctx_sarea_free helper function
+ * while holding the drm_device::struct_mutex lock.
+ */
+void drm_ctxbitmap_cleanup(struct drm_device * dev)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove_all(&dev->ctx_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name Per Context SAREA Support */
+/*@{*/
+
+/**
+ * Get per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Gets the map from drm_device::ctx_idr with the handle specified and
+ * returns its handle.
+ */
+int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map;
+ struct drm_map_list *_entry;
+
+ mutex_lock(&dev->struct_mutex);
+
+ map = idr_find(&dev->ctx_idr, request->ctx_id);
+ if (!map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->handle = NULL;
+ list_for_each_entry(_entry, &dev->maplist, head) {
+ if (_entry->map == map) {
+ request->handle =
+ (void *)(unsigned long)_entry->user_token;
+ break;
+ }
+ }
+ if (request->handle == NULL)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * Set per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the mapping specified in \p arg and update the entry in
+ * drm_device::ctx_idr with it.
+ */
+int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list = NULL;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map
+ && r_list->user_token == (unsigned long) request->handle)
+ goto found;
+ }
+ bad:
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+
+ found:
+ map = r_list->map;
+ if (!map)
+ goto bad;
+
+ if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id)))
+ goto bad;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name The actual DRM context handling routines */
+/*@{*/
+
+/**
+ * Switch context.
+ *
+ * \param dev DRM device.
+ * \param old old context handle.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to set drm_device::context_flag.
+ */
+static int drm_context_switch(struct drm_device * dev, int old, int new)
+{
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ return 0;
+}
+
+/**
+ * Complete context switch.
+ *
+ * \param dev DRM device.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Updates drm_device::last_context and drm_device::last_switch. Verifies the
+ * hardware lock is held, clears the drm_device::context_flag and wakes up
+ * drm_device::context_wait.
+ */
+static int drm_context_switch_complete(struct drm_device *dev,
+ struct drm_file *file_priv, int new)
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+ clear_bit(0, &dev->context_flag);
+ wake_up(&dev->context_wait);
+
+ return 0;
+}
+
+/**
+ * Reserve contexts.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_res structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_res *res = data;
+ struct drm_ctx ctx;
+ int i;
+
+ if (res->count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx)))
+ return -EFAULT;
+ }
+ }
+ res->count = DRM_RESERVED_CONTEXTS;
+
+ return 0;
+}
+
+/**
+ * Add context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Get a new handle for the context and copy to userspace.
+ */
+int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_list *ctx_entry;
+ struct drm_ctx *ctx = data;
+
+ ctx->handle = drm_ctxbitmap_next(dev);
+ if (ctx->handle == DRM_KERNEL_CONTEXT) {
+ /* Skip kernel's context and get a new one. */
+ ctx->handle = drm_ctxbitmap_next(dev);
+ }
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == -1) {
+ DRM_DEBUG("Not enough free contexts.\n");
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_ctor)
+ if (!dev->driver->context_ctor(dev, ctx->handle)) {
+ DRM_DEBUG("Running out of ctxs or memory.\n");
+ return -ENOMEM;
+ }
+ }
+
+ ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL);
+ if (!ctx_entry) {
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&ctx_entry->head);
+ ctx_entry->handle = ctx->handle;
+ ctx_entry->tag = file_priv;
+
+ mutex_lock(&dev->ctxlist_mutex);
+ list_add(&ctx_entry->head, &dev->ctxlist);
+ ++dev->ctx_count;
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ /* This does nothing */
+ return 0;
+}
+
+/**
+ * Get context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx->flags = 0;
+
+ return 0;
+}
+
+/**
+ * Switch context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch().
+ */
+int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ return drm_context_switch(dev, dev->last_context, ctx->handle);
+}
+
+/**
+ * New context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch_complete().
+ */
+int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ drm_context_switch_complete(dev, file_priv, ctx->handle);
+
+ return 0;
+}
+
+/**
+ * Remove context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * If not the special kernel context, calls ctxbitmap_free() to free the specified context.
+ */
+int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev, ctx->handle);
+ drm_ctxbitmap_free(dev, ctx->handle);
+ }
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->handle == ctx->handle) {
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+/*@}*/
--- /dev/null
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2008 Red Hat Inc.
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/list.h>
+#include "drm.h"
+#include "drmP.h"
+#include "drm_crtc.h"
+
+struct drm_prop_enum_list {
+ int type;
+ char *name;
+};
+
+/* Avoid boilerplate. I'm tired of typing. */
+#define DRM_ENUM_NAME_FN(fnname, list) \
+ char *fnname(int val) \
+ { \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(list); i++) { \
+ if (list[i].type == val) \
+ return list[i].name; \
+ } \
+ return "(unknown)"; \
+ }
+
+/*
+ * Global properties
+ */
+static struct drm_prop_enum_list drm_dpms_enum_list[] =
+{ { DRM_MODE_DPMS_ON, "On" },
+ { DRM_MODE_DPMS_STANDBY, "Standby" },
+ { DRM_MODE_DPMS_SUSPEND, "Suspend" },
+ { DRM_MODE_DPMS_OFF, "Off" }
+};
+
+DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
+
+/*
+ * Optional properties
+ */
+static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
+{
+ { DRM_MODE_SCALE_NONE, "None" },
+ { DRM_MODE_SCALE_FULLSCREEN, "Full" },
+ { DRM_MODE_SCALE_CENTER, "Center" },
+ { DRM_MODE_SCALE_ASPECT, "Full aspect" },
+};
+
+static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
+{
+ { DRM_MODE_DITHERING_OFF, "Off" },
+ { DRM_MODE_DITHERING_ON, "On" },
+};
+
+/*
+ * Non-global properties, but "required" for certain connectors.
+ */
+static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
+
+static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
+ drm_dvi_i_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_tv_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
+
+static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
+ drm_tv_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
+ { DRM_MODE_DIRTY_OFF, "Off" },
+ { DRM_MODE_DIRTY_ON, "On" },
+ { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
+};
+
+DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
+ drm_dirty_info_enum_list)
+
+struct drm_conn_prop_enum_list {
+ int type;
+ char *name;
+ int count;
+};
+
+/*
+ * Connector and encoder types.
+ */
+static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
+{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
+ { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
+ { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
+ { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
+ { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
+ { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
+ { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
+ { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
+ { DRM_MODE_CONNECTOR_Component, "Component", 0 },
+ { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
+ { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
+ { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
+ { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
+ { DRM_MODE_CONNECTOR_TV, "TV", 0 },
+};
+
+static struct drm_prop_enum_list drm_encoder_enum_list[] =
+{ { DRM_MODE_ENCODER_NONE, "None" },
+ { DRM_MODE_ENCODER_DAC, "DAC" },
+ { DRM_MODE_ENCODER_TMDS, "TMDS" },
+ { DRM_MODE_ENCODER_LVDS, "LVDS" },
+ { DRM_MODE_ENCODER_TVDAC, "TV" },
+};
+
+char *drm_get_encoder_name(struct drm_encoder *encoder)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_encoder_enum_list[encoder->encoder_type].name,
+ encoder->base.id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_encoder_name);
+
+char *drm_get_connector_name(struct drm_connector *connector)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_connector_enum_list[connector->connector_type].name,
+ connector->connector_type_id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_connector_name);
+
+char *drm_get_connector_status_name(enum drm_connector_status status)
+{
+ if (status == connector_status_connected)
+ return "connected";
+ else if (status == connector_status_disconnected)
+ return "disconnected";
+ else
+ return "unknown";
+}
+
+/**
+ * drm_mode_object_get - allocate a new identifier
+ * @dev: DRM device
+ * @ptr: object pointer, used to generate unique ID
+ * @type: object type
+ *
+ * LOCKING:
+ *
+ * Create a unique identifier based on @ptr in @dev's identifier space. Used
+ * for tracking modes, CRTCs and connectors.
+ *
+ * RETURNS:
+ * New unique (relative to other objects in @dev) integer identifier for the
+ * object.
+ */
+static int drm_mode_object_get(struct drm_device *dev,
+ struct drm_mode_object *obj, uint32_t obj_type)
+{
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Ran out memory getting a mode number\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+ if (ret == -EAGAIN)
+ goto again;
+
+ obj->id = new_id;
+ obj->type = obj_type;
+ return 0;
+}
+
+/**
+ * drm_mode_object_put - free an identifer
+ * @dev: DRM device
+ * @id: ID to free
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Free @id from @dev's unique identifier pool.
+ */
+static void drm_mode_object_put(struct drm_device *dev,
+ struct drm_mode_object *object)
+{
+ mutex_lock(&dev->mode_config.idr_mutex);
+ idr_remove(&dev->mode_config.crtc_idr, object->id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+}
+
+struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
+ uint32_t id, uint32_t type)
+{
+ struct drm_mode_object *obj = NULL;
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ obj = idr_find(&dev->mode_config.crtc_idr, id);
+ if (!obj || (obj->type != type) || (obj->id != id))
+ obj = NULL;
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_mode_object_find);
+
+/**
+ * drm_framebuffer_init - initialize a framebuffer
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Allocates an ID for the framebuffer's parent mode object, sets its mode
+ * functions & device file and adds it to the master fd list.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ int ret;
+
+ ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
+ if (ret) {
+ return ret;
+ }
+
+ fb->dev = dev;
+ fb->funcs = funcs;
+ dev->mode_config.num_fb++;
+ list_add(&fb->head, &dev->mode_config.fb_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_framebuffer_init);
+
+/**
+ * drm_framebuffer_cleanup - remove a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
+ * it, setting it to NULL.
+ */
+void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ struct drm_crtc *crtc;
+ struct drm_mode_set set;
+ int ret;
+
+ /* remove from any CRTC */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->fb == fb) {
+ /* should turn off the crtc */
+ memset(&set, 0, sizeof(struct drm_mode_set));
+ set.crtc = crtc;
+ set.fb = NULL;
+ ret = crtc->funcs->set_config(&set);
+ if (ret)
+ DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ }
+ }
+
+ drm_mode_object_put(dev, &fb->base);
+ list_del(&fb->head);
+ dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_crtc_init - Initialise a new CRTC object
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @funcs: callbacks for the new CRTC
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Inits a new object created as base part of an driver crtc object.
+ */
+void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+ const struct drm_crtc_funcs *funcs)
+{
+ crtc->dev = dev;
+ crtc->funcs = funcs;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
+
+ list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
+ dev->mode_config.num_crtc++;
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_crtc_init);
+
+/**
+ * drm_crtc_cleanup - Cleans up the core crtc usage.
+ * @crtc: CRTC to cleanup
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Cleanup @crtc. Removes from drm modesetting space
+ * does NOT free object, caller does that.
+ */
+void drm_crtc_cleanup(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+
+ if (crtc->gamma_store) {
+ kfree(crtc->gamma_store);
+ crtc->gamma_store = NULL;
+ }
+
+ drm_mode_object_put(dev, &crtc->base);
+ list_del(&crtc->head);
+ dev->mode_config.num_crtc--;
+}
+EXPORT_SYMBOL(drm_crtc_cleanup);
+
+/**
+ * drm_mode_probed_add - add a mode to a connector's probed mode list
+ * @connector: connector the new mode
+ * @mode: mode data
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Add @mode to @connector's mode list for later use.
+ */
+void drm_mode_probed_add(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_add(&mode->head, &connector->probed_modes);
+}
+EXPORT_SYMBOL(drm_mode_probed_add);
+
+/**
+ * drm_mode_remove - remove and free a mode
+ * @connector: connector list to modify
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Remove @mode from @connector's mode list, then free it.
+ */
+void drm_mode_remove(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_del(&mode->head);
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_remove);
+
+/**
+ * drm_connector_init - Init a preallocated connector
+ * @dev: DRM device
+ * @connector: the connector to init
+ * @funcs: callbacks for this connector
+ * @name: user visible name of the connector
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Initialises a preallocated connector. Connectors should be
+ * subclassed as part of driver connector objects.
+ */
+void drm_connector_init(struct drm_device *dev,
+ struct drm_connector *connector,
+ const struct drm_connector_funcs *funcs,
+ int connector_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ connector->dev = dev;
+ connector->funcs = funcs;
+ drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
+ connector->connector_type = connector_type;
+ connector->connector_type_id =
+ ++drm_connector_enum_list[connector_type].count; /* TODO */
+ INIT_LIST_HEAD(&connector->user_modes);
+ INIT_LIST_HEAD(&connector->probed_modes);
+ INIT_LIST_HEAD(&connector->modes);
+ connector->edid_blob_ptr = NULL;
+
+ list_add_tail(&connector->head, &dev->mode_config.connector_list);
+ dev->mode_config.num_connector++;
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.edid_property, 0);
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.dpms_property, 0);
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_init);
+
+/**
+ * drm_connector_cleanup - cleans up an initialised connector
+ * @connector: connector to cleanup
+ *
+ * LOCKING:
+ * Caller must hold @dev's mode_config lock.
+ *
+ * Cleans up the connector but doesn't free the object.
+ */
+void drm_connector_cleanup(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->user_modes, head)
+ drm_mode_remove(connector, mode);
+
+ kfree(connector->fb_helper_private);
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &connector->base);
+ list_del(&connector->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_cleanup);
+
+void drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type)
+{
+ mutex_lock(&dev->mode_config.mutex);
+
+ encoder->dev = dev;
+
+ drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
+ encoder->encoder_type = encoder_type;
+ encoder->funcs = funcs;
+
+ list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
+ dev->mode_config.num_encoder++;
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_init);
+
+void drm_encoder_cleanup(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &encoder->base);
+ list_del(&encoder->head);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_cleanup);
+
+/**
+ * drm_mode_create - create a new display mode
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Create a new drm_display_mode, give it an ID, and return it.
+ *
+ * RETURNS:
+ * Pointer to new mode on success, NULL on error.
+ */
+struct drm_display_mode *drm_mode_create(struct drm_device *dev)
+{
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_create);
+
+/**
+ * drm_mode_destroy - remove a mode
+ * @dev: DRM device
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free @mode's unique identifier, then free it.
+ */
+void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ drm_mode_object_put(dev, &mode->base);
+
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_destroy);
+
+static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
+{
+ struct drm_property *edid;
+ struct drm_property *dpms;
+ int i;
+
+ /*
+ * Standard properties (apply to all connectors)
+ */
+ edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "EDID", 0);
+ dev->mode_config.edid_property = edid;
+
+ dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
+ drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
+ drm_dpms_enum_list[i].name);
+ dev->mode_config.dpms_property = dpms;
+
+ return 0;
+}
+
+/**
+ * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
+ * @dev: DRM device
+ *
+ * Called by a driver the first time a DVI-I connector is made.
+ */
+int drm_mode_create_dvi_i_properties(struct drm_device *dev)
+{
+ struct drm_property *dvi_i_selector;
+ struct drm_property *dvi_i_subconnector;
+ int i;
+
+ if (dev->mode_config.dvi_i_select_subconnector_property)
+ return 0;
+
+ dvi_i_selector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_dvi_i_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
+ drm_property_add_enum(dvi_i_selector, i,
+ drm_dvi_i_select_enum_list[i].type,
+ drm_dvi_i_select_enum_list[i].name);
+ dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
+
+ dvi_i_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "subconnector",
+ ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
+ drm_property_add_enum(dvi_i_subconnector, i,
+ drm_dvi_i_subconnector_enum_list[i].type,
+ drm_dvi_i_subconnector_enum_list[i].name);
+ dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
+
+/**
+ * drm_create_tv_properties - create TV specific connector properties
+ * @dev: DRM device
+ * @num_modes: number of different TV formats (modes) supported
+ * @modes: array of pointers to strings containing name of each format
+ *
+ * Called by a driver's TV initialization routine, this function creates
+ * the TV specific connector properties for a given device. Caller is
+ * responsible for allocating a list of format names and passing them to
+ * this routine.
+ */
+int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
+ char *modes[])
+{
+ struct drm_property *tv_selector;
+ struct drm_property *tv_subconnector;
+ int i;
+
+ if (dev->mode_config.tv_select_subconnector_property)
+ return 0;
+
+ /*
+ * Basic connector properties
+ */
+ tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "select subconnector",
+ ARRAY_SIZE(drm_tv_select_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
+ drm_property_add_enum(tv_selector, i,
+ drm_tv_select_enum_list[i].type,
+ drm_tv_select_enum_list[i].name);
+ dev->mode_config.tv_select_subconnector_property = tv_selector;
+
+ tv_subconnector =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE, "subconnector",
+ ARRAY_SIZE(drm_tv_subconnector_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
+ drm_property_add_enum(tv_subconnector, i,
+ drm_tv_subconnector_enum_list[i].type,
+ drm_tv_subconnector_enum_list[i].name);
+ dev->mode_config.tv_subconnector_property = tv_subconnector;
+
+ /*
+ * Other, TV specific properties: margins & TV modes.
+ */
+ dev->mode_config.tv_left_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "left margin", 2);
+ dev->mode_config.tv_left_margin_property->values[0] = 0;
+ dev->mode_config.tv_left_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_right_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "right margin", 2);
+ dev->mode_config.tv_right_margin_property->values[0] = 0;
+ dev->mode_config.tv_right_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_top_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "top margin", 2);
+ dev->mode_config.tv_top_margin_property->values[0] = 0;
+ dev->mode_config.tv_top_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_bottom_margin_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "bottom margin", 2);
+ dev->mode_config.tv_bottom_margin_property->values[0] = 0;
+ dev->mode_config.tv_bottom_margin_property->values[1] = 100;
+
+ dev->mode_config.tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ for (i = 0; i < num_modes; i++)
+ drm_property_add_enum(dev->mode_config.tv_mode_property, i,
+ i, modes[i]);
+
+ dev->mode_config.tv_brightness_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "brightness", 2);
+ dev->mode_config.tv_brightness_property->values[0] = 0;
+ dev->mode_config.tv_brightness_property->values[1] = 100;
+
+ dev->mode_config.tv_contrast_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "contrast", 2);
+ dev->mode_config.tv_contrast_property->values[0] = 0;
+ dev->mode_config.tv_contrast_property->values[1] = 100;
+
+ dev->mode_config.tv_flicker_reduction_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "flicker reduction", 2);
+ dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
+ dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
+
+ dev->mode_config.tv_overscan_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "overscan", 2);
+ dev->mode_config.tv_overscan_property->values[0] = 0;
+ dev->mode_config.tv_overscan_property->values[1] = 100;
+
+ dev->mode_config.tv_saturation_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "saturation", 2);
+ dev->mode_config.tv_saturation_property->values[0] = 0;
+ dev->mode_config.tv_saturation_property->values[1] = 100;
+
+ dev->mode_config.tv_hue_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE,
+ "hue", 2);
+ dev->mode_config.tv_hue_property->values[0] = 0;
+ dev->mode_config.tv_hue_property->values[1] = 100;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_tv_properties);
+
+/**
+ * drm_mode_create_scaling_mode_property - create scaling mode property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_scaling_mode_property(struct drm_device *dev)
+{
+ struct drm_property *scaling_mode;
+ int i;
+
+ if (dev->mode_config.scaling_mode_property)
+ return 0;
+
+ scaling_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
+ ARRAY_SIZE(drm_scaling_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
+ drm_property_add_enum(scaling_mode, i,
+ drm_scaling_mode_enum_list[i].type,
+ drm_scaling_mode_enum_list[i].name);
+
+ dev->mode_config.scaling_mode_property = scaling_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
+
+/**
+ * drm_mode_create_dithering_property - create dithering property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dithering_property(struct drm_device *dev)
+{
+ struct drm_property *dithering_mode;
+ int i;
+
+ if (dev->mode_config.dithering_mode_property)
+ return 0;
+
+ dithering_mode =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
+ ARRAY_SIZE(drm_dithering_mode_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
+ drm_property_add_enum(dithering_mode, i,
+ drm_dithering_mode_enum_list[i].type,
+ drm_dithering_mode_enum_list[i].name);
+ dev->mode_config.dithering_mode_property = dithering_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dithering_property);
+
+/**
+ * drm_mode_create_dirty_property - create dirty property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dirty_info_property(struct drm_device *dev)
+{
+ struct drm_property *dirty_info;
+ int i;
+
+ if (dev->mode_config.dirty_info_property)
+ return 0;
+
+ dirty_info =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM |
+ DRM_MODE_PROP_IMMUTABLE,
+ "dirty",
+ ARRAY_SIZE(drm_dirty_info_enum_list));
+ for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
+ drm_property_add_enum(dirty_info, i,
+ drm_dirty_info_enum_list[i].type,
+ drm_dirty_info_enum_list[i].name);
+ dev->mode_config.dirty_info_property = dirty_info;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
+
+/**
+ * drm_mode_config_init - initialize DRM mode_configuration structure
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * None, should happen single threaded at init time.
+ *
+ * Initialize @dev's mode_config structure, used for tracking the graphics
+ * configuration of @dev.
+ */
+void drm_mode_config_init(struct drm_device *dev)
+{
+ mutex_init(&dev->mode_config.mutex);
+ mutex_init(&dev->mode_config.idr_mutex);
+ INIT_LIST_HEAD(&dev->mode_config.fb_list);
+ INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
+ INIT_LIST_HEAD(&dev->mode_config.crtc_list);
+ INIT_LIST_HEAD(&dev->mode_config.connector_list);
+ INIT_LIST_HEAD(&dev->mode_config.encoder_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+ idr_init(&dev->mode_config.crtc_idr);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_create_standard_connector_properties(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ /* Just to be sure */
+ dev->mode_config.num_fb = 0;
+ dev->mode_config.num_connector = 0;
+ dev->mode_config.num_crtc = 0;
+ dev->mode_config.num_encoder = 0;
+}
+EXPORT_SYMBOL(drm_mode_config_init);
+
+int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
+{
+ uint32_t total_objects = 0;
+
+ total_objects += dev->mode_config.num_crtc;
+ total_objects += dev->mode_config.num_connector;
+ total_objects += dev->mode_config.num_encoder;
+
+ if (total_objects == 0)
+ return -EINVAL;
+
+ group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
+ if (!group->id_list)
+ return -ENOMEM;
+
+ group->num_crtcs = 0;
+ group->num_connectors = 0;
+ group->num_encoders = 0;
+ return 0;
+}
+
+int drm_mode_group_init_legacy_group(struct drm_device *dev,
+ struct drm_mode_group *group)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ if ((ret = drm_mode_group_init(dev, group)))
+ return ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ group->id_list[group->num_crtcs++] = crtc->base.id;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders++] =
+ encoder->base.id;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders +
+ group->num_connectors++] = connector->base.id;
+
+ return 0;
+}
+
+/**
+ * drm_mode_config_cleanup - free up DRM mode_config info
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free up all the connectors and CRTCs associated with this DRM device, then
+ * free up the framebuffers and associated buffer objects.
+ *
+ * FIXME: cleanup any dangling user buffer objects too
+ */
+void drm_mode_config_cleanup(struct drm_device *dev)
+{
+ struct drm_connector *connector, *ot;
+ struct drm_crtc *crtc, *ct;
+ struct drm_encoder *encoder, *enct;
+ struct drm_framebuffer *fb, *fbt;
+ struct drm_property *property, *pt;
+
+ list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
+ head) {
+ encoder->funcs->destroy(encoder);
+ }
+
+ list_for_each_entry_safe(connector, ot,
+ &dev->mode_config.connector_list, head) {
+ connector->funcs->destroy(connector);
+ }
+
+ list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
+ head) {
+ drm_property_destroy(dev, property);
+ }
+
+ list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+ fb->funcs->destroy(fb);
+ }
+
+ list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+ crtc->funcs->destroy(crtc);
+ }
+
+}
+EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+/**
+ * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
+ * @out: drm_mode_modeinfo struct to return to the user
+ * @in: drm_display_mode to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
+ * the user.
+ */
+void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
+ struct drm_display_mode *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
+ * @out: drm_display_mode to return to the user
+ * @in: drm_mode_modeinfo to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
+ * the caller.
+ */
+void drm_crtc_convert_umode(struct drm_display_mode *out,
+ struct drm_mode_modeinfo *in)
+{
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_mode_getresources - get graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getresources(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_card_res *card_res = data;
+ struct list_head *lh;
+ struct drm_framebuffer *fb;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ int ret = 0;
+ int connector_count = 0;
+ int crtc_count = 0;
+ int fb_count = 0;
+ int encoder_count = 0;
+ int copied = 0, i;
+ uint32_t __user *fb_id;
+ uint32_t __user *crtc_id;
+ uint32_t __user *connector_id;
+ uint32_t __user *encoder_id;
+ struct drm_mode_group *mode_group;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /*
+ * For the non-control nodes we need to limit the list of resources
+ * by IDs in the group list for this node
+ */
+ list_for_each(lh, &file_priv->fbs)
+ fb_count++;
+
+ mode_group = &file_priv->master->minor->mode_group;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+
+ list_for_each(lh, &dev->mode_config.crtc_list)
+ crtc_count++;
+
+ list_for_each(lh, &dev->mode_config.connector_list)
+ connector_count++;
+
+ list_for_each(lh, &dev->mode_config.encoder_list)
+ encoder_count++;
+ } else {
+
+ crtc_count = mode_group->num_crtcs;
+ connector_count = mode_group->num_connectors;
+ encoder_count = mode_group->num_encoders;
+ }
+
+ card_res->max_height = dev->mode_config.max_height;
+ card_res->min_height = dev->mode_config.min_height;
+ card_res->max_width = dev->mode_config.max_width;
+ card_res->min_width = dev->mode_config.min_width;
+
+ /* handle this in 4 parts */
+ /* FBs */
+ if (card_res->count_fbs >= fb_count) {
+ copied = 0;
+ fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+ list_for_each_entry(fb, &file_priv->fbs, head) {
+ if (put_user(fb->base.id, fb_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_fbs = fb_count;
+
+ /* CRTCs */
+ if (card_res->count_crtcs >= crtc_count) {
+ copied = 0;
+ crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+ head) {
+ DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
+ if (put_user(crtc->base.id, crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = 0; i < mode_group->num_crtcs; i++) {
+ if (put_user(mode_group->id_list[i],
+ crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_crtcs = crtc_count;
+
+ /* Encoders */
+ if (card_res->count_encoders >= encoder_count) {
+ copied = 0;
+ encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(encoder,
+ &dev->mode_config.encoder_list,
+ head) {
+ DRM_DEBUG_KMS("ENCODER ID is %d\n",
+ encoder->base.id);
+ if (put_user(encoder->base.id, encoder_id +
+ copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
+ if (put_user(mode_group->id_list[i],
+ encoder_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+
+ }
+ }
+ card_res->count_encoders = encoder_count;
+
+ /* Connectors */
+ if (card_res->count_connectors >= connector_count) {
+ copied = 0;
+ connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list,
+ head) {
+ DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
+ connector->base.id);
+ if (put_user(connector->base.id,
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ int start = mode_group->num_crtcs +
+ mode_group->num_encoders;
+ for (i = start; i < start + mode_group->num_connectors; i++) {
+ if (put_user(mode_group->id_list[i],
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_connectors = connector_count;
+
+ DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
+ card_res->count_connectors, card_res->count_encoders);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getcrtc - get CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a CRTC configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getcrtc(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc *crtc_resp = data;
+ struct drm_crtc *crtc;
+ struct drm_mode_object *obj;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ crtc_resp->x = crtc->x;
+ crtc_resp->y = crtc->y;
+ crtc_resp->gamma_size = crtc->gamma_size;
+ if (crtc->fb)
+ crtc_resp->fb_id = crtc->fb->base.id;
+ else
+ crtc_resp->fb_id = 0;
+
+ if (crtc->enabled) {
+
+ drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ crtc_resp->mode_valid = 1;
+
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getconnector - get connector configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Construct a connector configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getconnector(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_connector *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ int mode_count = 0;
+ int props_count = 0;
+ int encoders_count = 0;
+ int ret = 0;
+ int copied = 0;
+ int i;
+ struct drm_mode_modeinfo u_mode;
+ struct drm_mode_modeinfo __user *mode_ptr;
+ uint32_t __user *prop_ptr;
+ uint64_t __user *prop_values;
+ uint32_t __user *encoder_ptr;
+
+ memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
+
+ DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ props_count++;
+ }
+ }
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ encoders_count++;
+ }
+ }
+
+ if (out_resp->count_modes == 0) {
+ connector->funcs->fill_modes(connector,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ }
+
+ /* delayed so we get modes regardless of pre-fill_modes state */
+ list_for_each_entry(mode, &connector->modes, head)
+ mode_count++;
+
+ out_resp->connector_id = connector->base.id;
+ out_resp->connector_type = connector->connector_type;
+ out_resp->connector_type_id = connector->connector_type_id;
+ out_resp->mm_width = connector->display_info.width_mm;
+ out_resp->mm_height = connector->display_info.height_mm;
+ out_resp->subpixel = connector->display_info.subpixel_order;
+ out_resp->connection = connector->status;
+ if (connector->encoder)
+ out_resp->encoder_id = connector->encoder->base.id;
+ else
+ out_resp->encoder_id = 0;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if ((out_resp->count_modes >= mode_count) && mode_count) {
+ copied = 0;
+ mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
+ list_for_each_entry(mode, &connector->modes, head) {
+ drm_crtc_convert_to_umode(&u_mode, mode);
+ if (copy_to_user(mode_ptr + copied,
+ &u_mode, sizeof(u_mode))) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_modes = mode_count;
+
+ if ((out_resp->count_props >= props_count) && props_count) {
+ copied = 0;
+ prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
+ prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] != 0) {
+ if (put_user(connector->property_ids[i],
+ prop_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (put_user(connector->property_values[i],
+ prop_values + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_props = props_count;
+
+ if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
+ copied = 0;
+ encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ if (put_user(connector->encoder_ids[i],
+ encoder_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_encoders = encoders_count;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_getencoder(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_encoder *enc_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, enc_resp->encoder_id,
+ DRM_MODE_OBJECT_ENCODER);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ encoder = obj_to_encoder(obj);
+
+ if (encoder->crtc)
+ enc_resp->crtc_id = encoder->crtc->base.id;
+ else
+ enc_resp->crtc_id = 0;
+ enc_resp->encoder_type = encoder->encoder_type;
+ enc_resp->encoder_id = encoder->base.id;
+ enc_resp->possible_crtcs = encoder->possible_crtcs;
+ enc_resp->possible_clones = encoder->possible_clones;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_setcrtc - set CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Build a new CRTC configuration based on user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_setcrtc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_mode_crtc *crtc_req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc, *crtcfb;
+ struct drm_connector **connector_set = NULL, *connector;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct drm_mode_set set;
+ uint32_t __user *set_connectors_ptr;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (crtc_req->mode_valid) {
+ /* If we have a mode we need a framebuffer. */
+ /* If we pass -1, set the mode with the currently bound fb */
+ if (crtc_req->fb_id == -1) {
+ list_for_each_entry(crtcfb,
+ &dev->mode_config.crtc_list, head) {
+ if (crtcfb == crtc) {
+ DRM_DEBUG_KMS("Using current fb for "
+ "setmode\n");
+ fb = crtc->fb;
+ }
+ }
+ } else {
+ obj = drm_mode_object_find(dev, crtc_req->fb_id,
+ DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown FB ID%d\n",
+ crtc_req->fb_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+ }
+
+ mode = drm_mode_create(dev);
+ drm_crtc_convert_umode(mode, &crtc_req->mode);
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ }
+
+ if (crtc_req->count_connectors == 0 && mode) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
+ DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
+ crtc_req->count_connectors);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0) {
+ u32 out_id;
+
+ /* Avoid unbounded kernel memory allocation */
+ if (crtc_req->count_connectors > config->num_connector) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ connector_set = kmalloc(crtc_req->count_connectors *
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
+ if (get_user(out_id, &set_connectors_ptr[i])) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ DRM_DEBUG_KMS("Connector id %d unknown\n",
+ out_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ connector_set[i] = connector;
+ }
+ }
+
+ set.crtc = crtc;
+ set.x = crtc_req->x;
+ set.y = crtc_req->y;
+ set.mode = mode;
+ set.connectors = connector_set;
+ set.num_connectors = crtc_req->count_connectors;
+ set.fb = fb;
+ ret = crtc->funcs->set_config(&set);
+
+out:
+ kfree(connector_set);
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_cursor_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_cursor *req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ int ret = 0;
+
+ if (!req->flags) {
+ DRM_ERROR("no operation set\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (req->flags & DRM_MODE_CURSOR_BO) {
+ if (!crtc->funcs->cursor_set) {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -ENXIO;
+ goto out;
+ }
+ /* Turns off the cursor if handle is 0 */
+ ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
+ req->width, req->height);
+ }
+
+ if (req->flags & DRM_MODE_CURSOR_MOVE) {
+ if (crtc->funcs->cursor_move) {
+ ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
+ } else {
+ DRM_ERROR("crtc does not support cursor\n");
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_addfb - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ if ((config->min_width > r->width) || (r->width > config->max_width)) {
+ DRM_ERROR("mode new framebuffer width not within limits\n");
+ return -EINVAL;
+ }
+ if ((config->min_height > r->height) || (r->height > config->max_height)) {
+ DRM_ERROR("mode new framebuffer height not within limits\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /* TODO check buffer is sufficently large */
+ /* TODO setup destructor callback */
+
+ fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
+ if (!fb) {
+ DRM_ERROR("could not create framebuffer\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ r->fb_id = fb->base.id;
+ list_add(&fb->filp_head, &file_priv->fbs);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_rmfb - remove an FB from the configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Remove the FB specified by the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_rmfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_framebuffer *fbl = NULL;
+ uint32_t *id = data;
+ int ret = 0;
+ int found = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
+ /* TODO check that we realy get a framebuffer back. */
+ if (!obj) {
+ DRM_ERROR("mode invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ list_for_each_entry(fbl, &file_priv->fbs, filp_head)
+ if (fb == fbl)
+ found = 1;
+
+ if (!found) {
+ DRM_ERROR("tried to remove a fb that we didn't own\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* TODO release all crtc connected to the framebuffer */
+ /* TODO unhock the destructor from the buffer object */
+
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getfb - get FB info
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Caller? (FIXME)
+ *
+ * Lookup the FB given its ID and return info about it.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ r->height = fb->height;
+ r->width = fb->width;
+ r->depth = fb->depth;
+ r->bpp = fb->bits_per_pixel;
+ r->pitch = fb->pitch;
+ fb->funcs->create_handle(fb, file_priv, &r->handle);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_clip_rect __user *clips_ptr;
+ struct drm_clip_rect *clips = NULL;
+ struct drm_mode_fb_dirty_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ unsigned flags;
+ int num_clips;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("invalid framebuffer id\n");
+ ret = -EINVAL;
+ goto out_err1;
+ }
+ fb = obj_to_fb(obj);
+
+ num_clips = r->num_clips;
+ clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
+
+ if (!num_clips != !clips_ptr) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
+
+ /* If userspace annotates copy, clips must come in pairs */
+ if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ if (num_clips && clips_ptr) {
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (!clips) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = copy_from_user(clips, clips_ptr,
+ num_clips * sizeof(*clips));
+ if (ret)
+ goto out_err2;
+ }
+
+ if (fb->funcs->dirty) {
+ ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
+ } else {
+ ret = -ENOSYS;
+ goto out_err2;
+ }
+
+out_err2:
+ kfree(clips);
+out_err1:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_release - remove and free the FBs on this file
+ * @filp: file * from the ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Destroy all the FBs associated with @filp.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+void drm_fb_release(struct drm_file *priv)
+{
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_framebuffer *fb, *tfb;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+/**
+ * drm_mode_attachmode - add a mode to the user mode list
+ * @dev: DRM device
+ * @connector: connector to add the mode to
+ * @mode: mode to add
+ *
+ * Add @mode to @connector's user mode list.
+ */
+static int drm_mode_attachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int ret = 0;
+
+ list_add_tail(&mode->head, &connector->user_modes);
+ return ret;
+}
+
+int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
+ struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+ int ret = 0;
+ struct drm_display_mode *dup_mode;
+ int need_dup = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ break;
+ if (connector->encoder->crtc == crtc) {
+ if (need_dup)
+ dup_mode = drm_mode_duplicate(dev, mode);
+ else
+ dup_mode = mode;
+ ret = drm_mode_attachmode(dev, connector, dup_mode);
+ if (ret)
+ return ret;
+ need_dup = 1;
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_attachmode_crtc);
+
+static int drm_mode_detachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int found = 0;
+ int ret = 0;
+ struct drm_display_mode *match_mode, *t;
+
+ list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
+ if (drm_mode_equal(match_mode, mode)) {
+ list_del(&match_mode->head);
+ drm_mode_destroy(dev, match_mode);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ret = -EINVAL;
+
+ return ret;
+}
+
+int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_mode_detachmode(dev, connector, mode);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_detachmode_crtc);
+
+/**
+ * drm_fb_attachmode - Attach a user mode to an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * This attaches a user specified mode to an connector.
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_attachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ struct drm_mode_object *obj;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ drm_crtc_convert_umode(mode, umode);
+
+ ret = drm_mode_attachmode(dev, connector, mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_detachmode - Detach a user specified mode from an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_detachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode mode;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ drm_crtc_convert_umode(&mode, umode);
+ ret = drm_mode_detachmode(dev, connector, &mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+struct drm_property *drm_property_create(struct drm_device *dev, int flags,
+ const char *name, int num_values)
+{
+ struct drm_property *property = NULL;
+
+ property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
+ if (!property)
+ return NULL;
+
+ if (num_values) {
+ property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
+ if (!property->values)
+ goto fail;
+ }
+
+ drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
+ property->flags = flags;
+ property->num_values = num_values;
+ INIT_LIST_HEAD(&property->enum_blob_list);
+
+ if (name)
+ strncpy(property->name, name, DRM_PROP_NAME_LEN);
+
+ list_add_tail(&property->head, &dev->mode_config.property_list);
+ return property;
+fail:
+ kfree(property);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_property_create);
+
+int drm_property_add_enum(struct drm_property *property, int index,
+ uint64_t value, const char *name)
+{
+ struct drm_property_enum *prop_enum;
+
+ if (!(property->flags & DRM_MODE_PROP_ENUM))
+ return -EINVAL;
+
+ if (!list_empty(&property->enum_blob_list)) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+ if (prop_enum->value == value) {
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ return 0;
+ }
+ }
+ }
+
+ prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
+ if (!prop_enum)
+ return -ENOMEM;
+
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ prop_enum->value = value;
+
+ property->values[index] = value;
+ list_add_tail(&prop_enum->head, &property->enum_blob_list);
+ return 0;
+}
+EXPORT_SYMBOL(drm_property_add_enum);
+
+void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
+{
+ struct drm_property_enum *prop_enum, *pt;
+
+ list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
+ list_del(&prop_enum->head);
+ kfree(prop_enum);
+ }
+
+ if (property->num_values)
+ kfree(property->values);
+ drm_mode_object_put(dev, &property->base);
+ list_del(&property->head);
+ kfree(property);
+}
+EXPORT_SYMBOL(drm_property_destroy);
+
+int drm_connector_attach_property(struct drm_connector *connector,
+ struct drm_property *property, uint64_t init_val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == 0) {
+ connector->property_ids[i] = property->base.id;
+ connector->property_values[i] = init_val;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_property);
+
+int drm_connector_property_set_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t value)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ connector->property_values[i] = value;
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_set_value);
+
+int drm_connector_property_get_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t *val)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == property->base.id) {
+ *val = connector->property_values[i];
+ break;
+ }
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY)
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_property_get_value);
+
+int drm_mode_getproperty_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_property *out_resp = data;
+ struct drm_property *property;
+ int enum_count = 0;
+ int blob_count = 0;
+ int value_count = 0;
+ int ret = 0, i;
+ int copied;
+ struct drm_property_enum *prop_enum;
+ struct drm_mode_property_enum __user *enum_ptr;
+ struct drm_property_blob *prop_blob;
+ uint32_t *blob_id_ptr;
+ uint64_t __user *values_ptr;
+ uint32_t __user *blob_length_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head)
+ enum_count++;
+ } else if (property->flags & DRM_MODE_PROP_BLOB) {
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head)
+ blob_count++;
+ }
+
+ value_count = property->num_values;
+
+ strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
+ out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
+ out_resp->flags = property->flags;
+
+ if ((out_resp->count_values >= value_count) && value_count) {
+ values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
+ for (i = 0; i < value_count; i++) {
+ if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ out_resp->count_values = value_count;
+
+ if (property->flags & DRM_MODE_PROP_ENUM) {
+ if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
+ copied = 0;
+ enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+
+ if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (copy_to_user(&enum_ptr[copied].name,
+ &prop_enum->name, DRM_PROP_NAME_LEN)) {
+ ret = -EFAULT;
+ goto done;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = enum_count;
+ }
+
+ if (property->flags & DRM_MODE_PROP_BLOB) {
+ if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
+ copied = 0;
+ blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
+ blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
+
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
+ if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (put_user(prop_blob->length, blob_length_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = blob_count;
+ }
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
+ void *data)
+{
+ struct drm_property_blob *blob;
+
+ if (!length || !data)
+ return NULL;
+
+ blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
+ if (!blob)
+ return NULL;
+
+ blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
+ blob->length = length;
+
+ memcpy(blob->data, data, length);
+
+ drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
+
+ list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
+ return blob;
+}
+
+static void drm_property_destroy_blob(struct drm_device *dev,
+ struct drm_property_blob *blob)
+{
+ drm_mode_object_put(dev, &blob->base);
+ list_del(&blob->head);
+ kfree(blob);
+}
+
+int drm_mode_getblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_blob *out_resp = data;
+ struct drm_property_blob *blob;
+ int ret = 0;
+ void *blob_ptr;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ blob = obj_to_blob(obj);
+
+ if (out_resp->length == blob->length) {
+ blob_ptr = (void *)(unsigned long)out_resp->data;
+ if (copy_to_user(blob_ptr, blob->data, blob->length)){
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ out_resp->length = blob->length;
+
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_update_edid_property(struct drm_connector *connector,
+ struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int ret = 0;
+
+ if (connector->edid_blob_ptr)
+ drm_property_destroy_blob(dev, connector->edid_blob_ptr);
+
+ /* Delete edid, when there is none. */
+ if (!edid) {
+ connector->edid_blob_ptr = NULL;
+ ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
+ return ret;
+ }
+
+ connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
+
+ ret = drm_connector_property_set_value(connector,
+ dev->mode_config.edid_property,
+ connector->edid_blob_ptr->base.id);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
+
+int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_connector_set_property *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_property *property;
+ struct drm_connector *connector;
+ int ret = -EINVAL;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
+ if (connector->property_ids[i] == out_resp->prop_id)
+ break;
+ }
+
+ if (i == DRM_CONNECTOR_MAX_PROPERTY) {
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ goto out;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & DRM_MODE_PROP_IMMUTABLE)
+ goto out;
+
+ if (property->flags & DRM_MODE_PROP_RANGE) {
+ if (out_resp->value < property->values[0])
+ goto out;
+
+ if (out_resp->value > property->values[1])
+ goto out;
+ } else {
+ int found = 0;
+ for (i = 0; i < property->num_values; i++) {
+ if (property->values[i] == out_resp->value) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ goto out;
+ }
+ }
+
+ /* Do DPMS ourselves */
+ if (property == connector->dev->mode_config.dpms_property) {
+ if (connector->funcs->dpms)
+ (*connector->funcs->dpms)(connector, (int) out_resp->value);
+ ret = 0;
+ } else if (connector->funcs->set_property)
+ ret = connector->funcs->set_property(connector, property, out_resp->value);
+
+ /* store the property value if successful */
+ if (!ret)
+ drm_connector_property_set_value(connector, property, out_resp->value);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_attach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0) {
+ connector->encoder_ids[i] = encoder->base.id;
+ return 0;
+ }
+ }
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
+
+void drm_mode_connector_detach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == encoder->base.id) {
+ connector->encoder_ids[i] = 0;
+ if (connector->encoder == encoder)
+ connector->encoder = NULL;
+ break;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
+
+bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size)
+{
+ crtc->gamma_size = gamma_size;
+
+ crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
+ if (!crtc->gamma_store) {
+ crtc->gamma_size = 0;
+ return false;
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+
+int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+
+}
+
+int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_page_flip_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+ struct drm_pending_vblank_event *e = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
+ page_flip->reserved != 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj)
+ goto out;
+ crtc = obj_to_crtc(obj);
+
+ if (crtc->funcs->page_flip == NULL)
+ goto out;
+
+ obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj)
+ goto out;
+ fb = obj_to_fb(obj);
+
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ ret = -ENOMEM;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+ file_priv->event_space -= sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+
+ e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = page_flip->user_data;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy =
+ (void (*) (struct drm_pending_event *)) kfree;
+ }
+
+ ret = crtc->funcs->page_flip(crtc, fb, e);
+ if (ret) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
--- /dev/null
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+ {"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node *node = inode->i_private;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct dentry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+ root, tmp, &drm_debugfs_fops);
+ if (!ent) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
+ name, files[i].name);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ tmp->minor = minor;
+ tmp->dent = ent;
+ tmp->info_ent = &files[i];
+ list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+ }
+ return 0;
+
+fail:
+ drm_debugfs_remove_files(files, count, minor);
+ return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
+ * "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
+ * "/sys/kernel/debug/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->debugfs_root = debugfs_create_dir(name, root);
+ if (!minor->debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+ if (ret) {
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+ DRM_ERROR("Failed to create core drm debugfs files\n");
+ return ret;
+ }
+
+ if (dev->driver->debugfs_init) {
+ ret = dev->driver->debugfs_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/sys/kernel/debug/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ debugfs_remove(tmp->dent);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+
+ if (!minor->debugfs_root)
+ return 0;
+
+ if (dev->driver->debugfs_cleanup)
+ dev->driver->debugfs_cleanup(minor);
+
+ drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+
+ return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
--- /dev/null
+/**
+ * \file drm_dma.c
+ * DMA IOCTL and function support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Initialize the DMA data.
+ *
+ * \param dev DRM device.
+ * \return zero on success or a negative value on failure.
+ *
+ * Allocate and initialize a drm_device_dma structure.
+ */
+int drm_dma_setup(struct drm_device *dev)
+{
+ int i;
+
+ dev->dma = kmalloc(sizeof(*dev->dma), GFP_KERNEL);
+ if (!dev->dma)
+ return -ENOMEM;
+
+ memset(dev->dma, 0, sizeof(*dev->dma));
+
+ for (i = 0; i <= DRM_MAX_ORDER; i++)
+ memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
+
+ return 0;
+}
+
+/**
+ * Cleanup the DMA resources.
+ *
+ * \param dev DRM device.
+ *
+ * Free all pages associated with DMA buffers, the buffers and pages lists, and
+ * finally the drm_device::dma structure itself.
+ */
+void drm_dma_takedown(struct drm_device *dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i, j;
+
+ if (!dma)
+ return;
+
+ /* Clear dma buffers */
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].seg_count) {
+ DRM_DEBUG("order %d: buf_count = %d,"
+ " seg_count = %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].seg_count);
+ for (j = 0; j < dma->bufs[i].seg_count; j++) {
+ if (dma->bufs[i].seglist[j]) {
+ drm_pci_free(dev, dma->bufs[i].seglist[j]);
+ }
+ }
+ kfree(dma->bufs[i].seglist);
+ }
+ if (dma->bufs[i].buf_count) {
+ for (j = 0; j < dma->bufs[i].buf_count; j++) {
+ kfree(dma->bufs[i].buflist[j].dev_private);
+ }
+ kfree(dma->bufs[i].buflist);
+ }
+ }
+
+ kfree(dma->buflist);
+ kfree(dma->pagelist);
+ kfree(dev->dma);
+ dev->dma = NULL;
+}
+
+/**
+ * Free a buffer.
+ *
+ * \param dev DRM device.
+ * \param buf buffer to free.
+ *
+ * Resets the fields of \p buf.
+ */
+void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
+{
+ if (!buf)
+ return;
+
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+ buf->used = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)
+ && waitqueue_active(&buf->dma_wait)) {
+ wake_up_interruptible(&buf->dma_wait);
+ }
+}
+
+/**
+ * Reclaim the buffers.
+ *
+ * \param file_priv DRM file private.
+ *
+ * Frees each buffer associated with \p file_priv not already on the hardware.
+ */
+void drm_core_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ if (!dma)
+ return;
+ for (i = 0; i < dma->buf_count; i++) {
+ if (dma->buflist[i]->file_priv == file_priv) {
+ switch (dma->buflist[i]->list) {
+ case DRM_LIST_NONE:
+ drm_free_buffer(dev, dma->buflist[i]);
+ break;
+ case DRM_LIST_WAIT:
+ dma->buflist[i]->list = DRM_LIST_RECLAIM;
+ break;
+ default:
+ /* Buffer already on hardware. */
+ break;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_core_reclaim_buffers);
--- /dev/null
+/**
+ * \file drm_drawable.c
+ * IOCTLs for drawables
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ * \author Michel Dänzer <michel@tungstengraphics.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, North Dakota.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Allocate drawable ID and memory to store information about it.
+ */
+int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ unsigned long irqflags;
+ struct drm_draw *draw = data;
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->drw_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+ ret = idr_get_new_above(&dev->drw_idr, NULL, 1, &new_id);
+ if (ret == -EAGAIN) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ goto again;
+ }
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ draw->handle = new_id;
+
+ DRM_DEBUG("%d\n", draw->handle);
+
+ return 0;
+}
+
+/**
+ * Free drawable ID and memory to store information about it.
+ */
+int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_draw *draw = data;
+ unsigned long irqflags;
+ struct drm_drawable_info *info;
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ info = drm_get_drawable_info(dev, draw->handle);
+ if (info == NULL) {
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ return -EINVAL;
+ }
+ kfree(info->rects);
+ kfree(info);
+
+ idr_remove(&dev->drw_idr, draw->handle);
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+ DRM_DEBUG("%d\n", draw->handle);
+ return 0;
+}
+
+int drm_update_drawable_info(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_update_draw *update = data;
+ unsigned long irqflags;
+ struct drm_clip_rect *rects;
+ struct drm_drawable_info *info;
+ int err;
+
+ info = idr_find(&dev->drw_idr, update->handle);
+ if (!info) {
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ if (IS_ERR(idr_replace(&dev->drw_idr, info, update->handle))) {
+ DRM_ERROR("No such drawable %d\n", update->handle);
+ kfree(info);
+ return -EINVAL;
+ }
+ }
+
+ switch (update->type) {
+ case DRM_DRAWABLE_CLIPRECTS:
+ if (update->num == 0)
+ rects = NULL;
+ else if (update->num != info->num_rects) {
+ rects = kmalloc(update->num *
+ sizeof(struct drm_clip_rect),
+ GFP_KERNEL);
+ } else
+ rects = info->rects;
+
+ if (update->num && !rects) {
+ DRM_ERROR("Failed to allocate cliprect memory\n");
+ err = -ENOMEM;
+ goto error;
+ }
+
+ if (update->num && DRM_COPY_FROM_USER(rects,
+ (struct drm_clip_rect __user *)
+ (unsigned long)update->data,
+ update->num *
+ sizeof(*rects))) {
+ DRM_ERROR("Failed to copy cliprects from userspace\n");
+ err = -EFAULT;
+ goto error;
+ }
+
+ spin_lock_irqsave(&dev->drw_lock, irqflags);
+
+ if (rects != info->rects) {
+ kfree(info->rects);
+ }
+
+ info->rects = rects;
+ info->num_rects = update->num;
+
+ spin_unlock_irqrestore(&dev->drw_lock, irqflags);
+
+ DRM_DEBUG("Updated %d cliprects for drawable %d\n",
+ info->num_rects, update->handle);
+ break;
+ default:
+ DRM_ERROR("Invalid update type %d\n", update->type);
+ return -EINVAL;
+ }
+
+ return 0;
+
+error:
+ if (rects != info->rects)
+ kfree(rects);
+
+ return err;
+}
+
+/**
+ * Caller must hold the drawable spinlock!
+ */
+struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id)
+{
+ return idr_find(&dev->drw_idr, id);
+}
+EXPORT_SYMBOL(drm_get_drawable_info);
+
+static int drm_drawable_free(int idr, void *p, void *data)
+{
+ struct drm_drawable_info *info = p;
+
+ if (info) {
+ kfree(info->rects);
+ kfree(info);
+ }
+
+ return 0;
+}
+
+void drm_drawable_free_all(struct drm_device *dev)
+{
+ idr_for_each(&dev->drw_idr, drm_drawable_free, NULL);
+ idr_remove_all(&dev->drw_idr);
+}
--- /dev/null
+/**
+ * \file drm_drv.c
+ * Generic driver template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * \code
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define drm_x mga_##x
+ * \endcode
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/** Ioctl table */
+static struct drm_ioctl_desc drm_ioctls[] = {
+ DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+ DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+#if __OS_HAS_AGP
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+#endif
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW)
+};
+
+#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
+
+/**
+ * Take down the DRM device.
+ *
+ * \param dev DRM device structure.
+ *
+ * Frees every resource in \p dev.
+ *
+ * \sa drm_device
+ */
+int drm_lastclose(struct drm_device * dev)
+{
+ struct drm_vma_entry *vma, *vma_temp;
+ int i;
+
+ DRM_DEBUG("\n");
+
+ if (dev->driver->lastclose)
+ dev->driver->lastclose(dev);
+ DRM_DEBUG("driver lastclose completed\n");
+
+ if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_irq_uninstall(dev);
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Free drawable information memory */
+ drm_drawable_free_all(dev);
+ del_timer(&dev->timer);
+
+ /* Clear AGP information */
+ if (drm_core_has_AGP(dev) && dev->agp &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ struct drm_agp_mem *entry, *tempe;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ }
+ INIT_LIST_HEAD(&dev->agp->memory);
+
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+ if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ drm_sg_cleanup(dev->sg);
+ dev->sg = NULL;
+ }
+
+ /* Clear vma list (only built for debugging) */
+ list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
+ list_del(&vma->head);
+ kfree(vma);
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
+ for (i = 0; i < dev->queue_count; i++) {
+ kfree(dev->queuelist[i]);
+ dev->queuelist[i] = NULL;
+ }
+ kfree(dev->queuelist);
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_dma_takedown(dev);
+
+ dev->dev_mapping = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("lastclose completed\n");
+ return 0;
+}
+
+/**
+ * Module initialization. Called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes an array of drm_device structures, and attempts to
+ * initialize all available devices, using consecutive minors, registering the
+ * stubs and initializing the AGP device.
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+int drm_init(struct drm_driver *driver)
+{
+ struct pci_dev *pdev = NULL;
+ const struct pci_device_id *pid;
+ int i;
+
+ DRM_DEBUG("\n");
+
+ INIT_LIST_HEAD(&driver->device_list);
+
+ if (driver->driver_features & DRIVER_MODESET)
+ return pci_register_driver(&driver->pci_driver);
+
+ /* If not using KMS, fall back to stealth mode manual scanning. */
+ for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
+ pid = &driver->pci_driver.id_table[i];
+
+ /* Loop around setting up a DRM device for each PCI device
+ * matching our ID and device class. If we had the internal
+ * function that pci_get_subsys and pci_get_class used, we'd
+ * be able to just pass pid in instead of doing a two-stage
+ * thing.
+ */
+ pdev = NULL;
+ while ((pdev =
+ pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
+ pid->subdevice, pdev)) != NULL) {
+ if ((pdev->class & pid->class_mask) != pid->class)
+ continue;
+
+ /* stealth mode requires a manual probe */
+ pci_dev_get(pdev);
+ drm_get_dev(pdev, pid, driver);
+ }
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_init);
+
+void drm_exit(struct drm_driver *driver)
+{
+ struct drm_device *dev, *tmp;
+ DRM_DEBUG("\n");
+
+ if (driver->driver_features & DRIVER_MODESET) {
+ pci_unregister_driver(&driver->pci_driver);
+ } else {
+ list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
+ drm_put_dev(dev);
+ }
+
+ DRM_INFO("Module unloaded\n");
+}
+
+EXPORT_SYMBOL(drm_exit);
+
+/** File operations structure */
+static const struct file_operations drm_stub_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_stub_open
+};
+
+static int __init drm_core_init(void)
+{
+ int ret = -ENOMEM;
+
+ idr_init(&drm_minors_idr);
+
+ if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
+ goto err_p1;
+
+ drm_class = drm_sysfs_create(THIS_MODULE, "drm");
+ if (IS_ERR(drm_class)) {
+ printk(KERN_ERR "DRM: Error creating drm class.\n");
+ ret = PTR_ERR(drm_class);
+ goto err_p2;
+ }
+
+ drm_proc_root = proc_mkdir("dri", NULL);
+ if (!drm_proc_root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ drm_debugfs_root = debugfs_create_dir("dri", NULL);
+ if (!drm_debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ DRM_INFO("Initialized %s %d.%d.%d %s\n",
+ CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+ return 0;
+err_p3:
+ drm_sysfs_destroy();
+err_p2:
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+err_p1:
+ return ret;
+}
+
+static void __exit drm_core_exit(void)
+{
+ remove_proc_entry("dri", NULL);
+ debugfs_remove(drm_debugfs_root);
+ drm_sysfs_destroy();
+
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+}
+
+module_init(drm_core_init);
+module_exit(drm_core_exit);
+
+/**
+ * Copy and IOCTL return string to user space
+ */
+static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+{
+ int len;
+
+ /* don't overflow userbuf */
+ len = strlen(value);
+ if (len > *buf_len)
+ len = *buf_len;
+
+ /* let userspace know exact length of driver value (which could be
+ * larger than the userspace-supplied buffer) */
+ *buf_len = strlen(value);
+
+ /* finally, try filling in the userbuf */
+ if (len && buf)
+ if (copy_to_user(buf, value, len))
+ return -EFAULT;
+ return 0;
+}
+
+/**
+ * Get version information
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_version structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Fills in the version information in \p arg.
+ */
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_version *version = data;
+ int err;
+
+ version->version_major = dev->driver->major;
+ version->version_minor = dev->driver->minor;
+ version->version_patchlevel = dev->driver->patchlevel;
+ err = drm_copy_field(version->name, &version->name_len,
+ dev->driver->name);
+ if (!err)
+ err = drm_copy_field(version->date, &version->date_len,
+ dev->driver->date);
+ if (!err)
+ err = drm_copy_field(version->desc, &version->desc_len,
+ dev->driver->desc);
+
+ return err;
+}
+
+/**
+ * Called whenever a process performs an ioctl on /dev/drm.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ *
+ * Looks up the ioctl function in the ::ioctls table, checking for root
+ * previleges if so required, and dispatches to the respective function.
+ */
+int drm_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_ioctl_desc *ioctl;
+ drm_ioctl_t *func;
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ int retcode = -EINVAL;
+ char stack_kdata[128];
+ char *kdata = NULL;
+
+ atomic_inc(&dev->ioctl_count);
+ atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
+ ++file_priv->ioctl_count;
+
+ DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
+ task_pid_nr(current), cmd, nr,
+ (long)old_encode_dev(file_priv->minor->device),
+ file_priv->authenticated);
+
+ if ((nr >= DRM_CORE_IOCTL_COUNT) &&
+ ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
+ goto err_i1;
+ if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
+ (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
+ ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
+ else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
+ ioctl = &drm_ioctls[nr];
+ cmd = ioctl->cmd;
+ } else
+ goto err_i1;
+
+ /* Do not trust userspace, use our own definition */
+ func = ioctl->func;
+ /* is there a local override? */
+ if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
+ func = dev->driver->dma_ioctl;
+
+ if (!func) {
+ DRM_DEBUG("no function\n");
+ retcode = -EINVAL;
+ } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
+ ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
+ ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+ (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
+ retcode = -EACCES;
+ } else {
+ if (cmd & (IOC_IN | IOC_OUT)) {
+ if (_IOC_SIZE(cmd) <= sizeof(stack_kdata)) {
+ kdata = stack_kdata;
+ } else {
+ kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
+ if (!kdata) {
+ retcode = -ENOMEM;
+ goto err_i1;
+ }
+ }
+ }
+
+ if (cmd & IOC_IN) {
+ if (copy_from_user(kdata, (void __user *)arg,
+ _IOC_SIZE(cmd)) != 0) {
+ retcode = -EFAULT;
+ goto err_i1;
+ }
+ }
+ retcode = func(dev, kdata, file_priv);
+
+ if (cmd & IOC_OUT) {
+ if (copy_to_user((void __user *)arg, kdata,
+ _IOC_SIZE(cmd)) != 0)
+ retcode = -EFAULT;
+ }
+ }
+
+ err_i1:
+ if (kdata != stack_kdata)
+ kfree(kdata);
+ atomic_dec(&dev->ioctl_count);
+ if (retcode)
+ DRM_DEBUG("ret = %x\n", retcode);
+ return retcode;
+}
+
+EXPORT_SYMBOL(drm_ioctl);
+
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
+{
+ struct drm_map_list *entry;
+
+ list_for_each_entry(entry, &dev->maplist, head) {
+ if (entry->map && entry->map->type == _DRM_SHM &&
+ (entry->map->flags & _DRM_CONTAINS_LOCK)) {
+ return entry->map;
+ }
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(drm_getsarea);
--- /dev/null
+/*
+ * Copyright (c) 2006 Luc Verhaegen (quirks list)
+ * Copyright (c) 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
+ * FB layer.
+ * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include "drmP.h"
+#include "drm_edid.h"
+
+/*
+ * TODO:
+ * - support EDID 1.4 (incl. CE blocks)
+ */
+
+/*
+ * EDID blocks out in the wild have a variety of bugs, try to collect
+ * them here (note that userspace may work around broken monitors first,
+ * but fixes should make their way here so that the kernel "just works"
+ * on as many displays as possible).
+ */
+
+/* First detailed mode wrong, use largest 60Hz mode */
+#define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
+/* Reported 135MHz pixel clock is too high, needs adjustment */
+#define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
+/* Prefer the largest mode at 75 Hz */
+#define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
+/* Detail timing is in cm not mm */
+#define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
+/* Detailed timing descriptors have bogus size values, so just take the
+ * maximum size and use that.
+ */
+#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
+/* Monitor forgot to set the first detailed is preferred bit. */
+#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
+/* use +hsync +vsync for detailed mode */
+#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
+/* define the number of Extension EDID block */
+#define MAX_EDID_EXT_NUM 4
+
+#define LEVEL_DMT 0
+#define LEVEL_GTF 1
+#define LEVEL_CVT 2
+
+static struct edid_quirk {
+ char *vendor;
+ int product_id;
+ u32 quirks;
+} edid_quirk_list[] = {
+ /* Acer AL1706 */
+ { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Acer F51 */
+ { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Unknown Acer */
+ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Belinea 10 15 55 */
+ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
+ { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Envision Peripherals, Inc. EN-7100e */
+ { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
+
+ /* Funai Electronics PM36B */
+ { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
+ EDID_QUIRK_DETAILED_IN_CM },
+
+ /* LG Philips LCD LP154W01-A5 */
+ { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+ { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+
+ /* Philips 107p5 CRT */
+ { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Proview AY765C */
+ { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Samsung SyncMaster 205BW. Note: irony */
+ { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
+ /* Samsung SyncMaster 22[5-6]BW */
+ { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
+ { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+};
+
+
+/* Valid EDID header has these bytes */
+static const u8 edid_header[] = {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
+};
+
+/**
+ * edid_is_valid - sanity check EDID data
+ * @edid: EDID data
+ *
+ * Sanity check the EDID block by looking at the header, the version number
+ * and the checksum. Return 0 if the EDID doesn't check out, or 1 if it's
+ * valid.
+ */
+static bool edid_is_valid(struct edid *edid)
+{
+ int i, score = 0;
+ u8 csum = 0;
+ u8 *raw_edid = (u8 *)edid;
+
+ for (i = 0; i < sizeof(edid_header); i++)
+ if (raw_edid[i] == edid_header[i])
+ score++;
+
+ if (score == 8) ;
+ else if (score >= 6) {
+ DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
+ memcpy(raw_edid, edid_header, sizeof(edid_header));
+ } else
+ goto bad;
+
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+ if (csum) {
+ DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
+ goto bad;
+ }
+
+ if (edid->version != 1) {
+ DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
+ goto bad;
+ }
+
+ if (edid->revision > 4)
+ DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
+
+ return 1;
+
+bad:
+ if (raw_edid) {
+ DRM_ERROR("Raw EDID:\n");
+ print_hex_dump_bytes(KERN_ERR, DUMP_PREFIX_NONE, raw_edid, EDID_LENGTH);
+ printk("\n");
+ }
+ return 0;
+}
+
+/**
+ * edid_vendor - match a string against EDID's obfuscated vendor field
+ * @edid: EDID to match
+ * @vendor: vendor string
+ *
+ * Returns true if @vendor is in @edid, false otherwise
+ */
+static bool edid_vendor(struct edid *edid, char *vendor)
+{
+ char edid_vendor[3];
+
+ edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
+ edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
+ ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
+ edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
+
+ return !strncmp(edid_vendor, vendor, 3);
+}
+
+/**
+ * edid_get_quirks - return quirk flags for a given EDID
+ * @edid: EDID to process
+ *
+ * This tells subsequent routines what fixes they need to apply.
+ */
+static u32 edid_get_quirks(struct edid *edid)
+{
+ struct edid_quirk *quirk;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
+ quirk = &edid_quirk_list[i];
+
+ if (edid_vendor(edid, quirk->vendor) &&
+ (EDID_PRODUCT_ID(edid) == quirk->product_id))
+ return quirk->quirks;
+ }
+
+ return 0;
+}
+
+#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
+#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
+
+
+/**
+ * edid_fixup_preferred - set preferred modes based on quirk list
+ * @connector: has mode list to fix up
+ * @quirks: quirks list
+ *
+ * Walk the mode list for @connector, clearing the preferred status
+ * on existing modes and setting it anew for the right mode ala @quirks.
+ */
+static void edid_fixup_preferred(struct drm_connector *connector,
+ u32 quirks)
+{
+ struct drm_display_mode *t, *cur_mode, *preferred_mode;
+ int target_refresh = 0;
+
+ if (list_empty(&connector->probed_modes))
+ return;
+
+ if (quirks & EDID_QUIRK_PREFER_LARGE_60)
+ target_refresh = 60;
+ if (quirks & EDID_QUIRK_PREFER_LARGE_75)
+ target_refresh = 75;
+
+ preferred_mode = list_first_entry(&connector->probed_modes,
+ struct drm_display_mode, head);
+
+ list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
+ cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+
+ if (cur_mode == preferred_mode)
+ continue;
+
+ /* Largest mode is preferred */
+ if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
+ preferred_mode = cur_mode;
+
+ /* At a given size, try to get closest to target refresh */
+ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
+ MODE_REFRESH_DIFF(cur_mode, target_refresh) <
+ MODE_REFRESH_DIFF(preferred_mode, target_refresh)) {
+ preferred_mode = cur_mode;
+ }
+ }
+
+ preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
+}
+
+/*
+ * Add the Autogenerated from the DMT spec.
+ * This table is copied from xfree86/modes/xf86EdidModes.c.
+ * But the mode with Reduced blank feature is deleted.
+ */
+static struct drm_display_mode drm_dmt_modes[] = {
+ /* 640x350@85Hz */
+ { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 350, 382, 385, 445, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x400@85Hz */
+ { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 400, 401, 404, 445, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 720x400@85Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
+ 828, 936, 0, 400, 401, 404, 446, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 640x480@60Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+ 752, 800, 0, 480, 489, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 492, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@85Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
+ 752, 832, 0, 480, 481, 484, 509, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 800x600@56Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@72Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@85Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
+ 896, 1048, 0, 600, 601, 604, 631, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 848x480@60Hz */
+ { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
+ 976, 1088, 0, 480, 486, 494, 517, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@43Hz, interlace */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 772, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@85Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
+ 1072, 1376, 0, 768, 769, 772, 808, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1152x864@75Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@60Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
+ 1472, 1664, 0, 768, 771, 778, 798, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@75Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
+ 1488, 1696, 0, 768, 771, 778, 805, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x768@85Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
+ 1496, 1712, 0, 768, 771, 778, 809, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@60Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
+ 1480, 1680, 0, 800, 803, 809, 831, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x800@75Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
+ 1488, 1696, 0, 800, 803, 809, 838, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@85Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
+ 1496, 1712, 0, 800, 803, 809, 843, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@60Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
+ 1488, 1800, 0, 960, 961, 964, 1000, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@85Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
+ 1504, 1728, 0, 960, 961, 964, 1011, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@60Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@75Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@85Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
+ 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1360x768@60Hz */
+ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
+ 1536, 1792, 0, 768, 771, 777, 795, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@60Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
+ 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@75Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
+ 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@85Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
+ 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@60Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
+ 1672, 1904, 0, 900, 903, 909, 934, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@75Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
+ 1688, 1936, 0, 900, 903, 909, 942, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@85Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
+ 1696, 1952, 0, 900, 903, 909, 948, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@60Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@65Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@70Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@75Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 2025000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@85Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@60Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
+ 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@75Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
+ 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@85Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
+ 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1792x1344@60Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
+ 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1729x1344@75Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
+ 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1853x1392@60Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
+ 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1856x1392@75Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
+ 2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@60Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
+ 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@75Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
+ 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@85Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
+ 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@60Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
+ 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@75Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
+ 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@60Hz */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
+ 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@75HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@85HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+};
+static const int drm_num_dmt_modes =
+ sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+
+static struct drm_display_mode *drm_find_dmt(struct drm_device *dev,
+ int hsize, int vsize, int fresh)
+{
+ int i;
+ struct drm_display_mode *ptr, *mode;
+
+ mode = NULL;
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hsize == ptr->hdisplay &&
+ vsize == ptr->vdisplay &&
+ fresh == drm_mode_vrefresh(ptr)) {
+ /* get the expected default mode */
+ mode = drm_mode_duplicate(dev, ptr);
+ break;
+ }
+ }
+ return mode;
+}
+
+/*
+ * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
+ * monitors fill with ascii space (0x20) instead.
+ */
+static int
+bad_std_timing(u8 a, u8 b)
+{
+ return (a == 0x00 && b == 0x00) ||
+ (a == 0x01 && b == 0x01) ||
+ (a == 0x20 && b == 0x20);
+}
+
+/**
+ * drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @t: standard timing params
+ * @timing_level: standard timing level
+ *
+ * Take the standard timing params (in this case width, aspect, and refresh)
+ * and convert them into a real mode using CVT/GTF/DMT.
+ *
+ * Punts for now, but should eventually use the FB layer's CVT based mode
+ * generation code.
+ */
+struct drm_display_mode *drm_mode_std(struct drm_device *dev,
+ struct std_timing *t,
+ int revision,
+ int timing_level)
+{
+ struct drm_display_mode *mode;
+ int hsize, vsize;
+ int vrefresh_rate;
+ unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
+ >> EDID_TIMING_ASPECT_SHIFT;
+ unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
+ >> EDID_TIMING_VFREQ_SHIFT;
+
+ if (bad_std_timing(t->hsize, t->vfreq_aspect))
+ return NULL;
+
+ /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
+ hsize = t->hsize * 8 + 248;
+ /* vrefresh_rate = vfreq + 60 */
+ vrefresh_rate = vfreq + 60;
+ /* the vdisplay is calculated based on the aspect ratio */
+ if (aspect_ratio == 0) {
+ if (revision < 3)
+ vsize = hsize;
+ else
+ vsize = (hsize * 10) / 16;
+ } else if (aspect_ratio == 1)
+ vsize = (hsize * 3) / 4;
+ else if (aspect_ratio == 2)
+ vsize = (hsize * 4) / 5;
+ else
+ vsize = (hsize * 9) / 16;
+ /* HDTV hack */
+ if (hsize == 1360 && vsize == 765 && vrefresh_rate == 60) {
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ mode->hdisplay = 1366;
+ mode->vsync_start = mode->vsync_start - 1;
+ mode->vsync_end = mode->vsync_end - 1;
+ return mode;
+ }
+ mode = NULL;
+ /* check whether it can be found in default mode table */
+ mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate);
+ if (mode)
+ return mode;
+
+ switch (timing_level) {
+ case LEVEL_DMT:
+ break;
+ case LEVEL_GTF:
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ break;
+ case LEVEL_CVT:
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ break;
+ }
+ return mode;
+}
+
+/**
+ * drm_mode_detailed - create a new mode from an EDID detailed timing section
+ * @dev: DRM device (needed to create new mode)
+ * @edid: EDID block
+ * @timing: EDID detailed timing info
+ * @quirks: quirks to apply
+ *
+ * An EDID detailed timing block contains enough info for us to create and
+ * return a new struct drm_display_mode.
+ */
+static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
+ struct edid *edid,
+ struct detailed_timing *timing,
+ u32 quirks)
+{
+ struct drm_display_mode *mode;
+ struct detailed_pixel_timing *pt = &timing->data.pixel_data;
+ unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
+ unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
+ unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
+ unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
+ unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
+ unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
+ unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+ unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
+
+ /* ignore tiny modes */
+ if (hactive < 64 || vactive < 64)
+ return NULL;
+
+ if (pt->misc & DRM_EDID_PT_STEREO) {
+ printk(KERN_WARNING "stereo mode not supported\n");
+ return NULL;
+ }
+ if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
+ printk(KERN_WARNING "integrated sync not supported\n");
+ return NULL;
+ }
+
+ /* it is incorrect if hsync/vsync width is zero */
+ if (!hsync_pulse_width || !vsync_pulse_width) {
+ DRM_DEBUG_KMS("Incorrect Detailed timing. "
+ "Wrong Hsync/Vsync pulse width\n");
+ return NULL;
+ }
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return NULL;
+
+ mode->type = DRM_MODE_TYPE_DRIVER;
+
+ if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
+ timing->pixel_clock = cpu_to_le16(1088);
+
+ mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
+
+ mode->hdisplay = hactive;
+ mode->hsync_start = mode->hdisplay + hsync_offset;
+ mode->hsync_end = mode->hsync_start + hsync_pulse_width;
+ mode->htotal = mode->hdisplay + hblank;
+
+ mode->vdisplay = vactive;
+ mode->vsync_start = mode->vdisplay + vsync_offset;
+ mode->vsync_end = mode->vsync_start + vsync_pulse_width;
+ mode->vtotal = mode->vdisplay + vblank;
+
+ /* perform the basic check for the detailed timing */
+ if (mode->hsync_end > mode->htotal ||
+ mode->vsync_end > mode->vtotal) {
+ drm_mode_destroy(dev, mode);
+ DRM_DEBUG_KMS("Incorrect detailed timing. "
+ "Sync is beyond the blank.\n");
+ return NULL;
+ }
+
+ /* Some EDIDs have bogus h/vtotal values */
+ if (mode->hsync_end > mode->htotal)
+ mode->htotal = mode->hsync_end + 1;
+ if (mode->vsync_end > mode->vtotal)
+ mode->vtotal = mode->vsync_end + 1;
+
+ drm_mode_set_name(mode);
+
+ if (pt->misc & DRM_EDID_PT_INTERLACED)
+ mode->flags |= DRM_MODE_FLAG_INTERLACE;
+
+ if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
+ pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
+ }
+
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+
+ mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+ mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
+
+ if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
+ mode->width_mm *= 10;
+ mode->height_mm *= 10;
+ }
+
+ if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
+ mode->width_mm = edid->width_cm * 10;
+ mode->height_mm = edid->height_cm * 10;
+ }
+
+ return mode;
+}
+
+/*
+ * Detailed mode info for the EDID "established modes" data to use.
+ */
+static struct drm_display_mode edid_est_modes[] = {
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 491, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
+ 768, 864, 0, 480, 483, 486, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
+ 752, 800, 0, 480, 490, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
+ 846, 900, 0, 400, 421, 423, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
+ 846, 900, 0, 400, 412, 414, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 776, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
+ { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
+ 928, 1152, 0, 624, 625, 628, 667, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
+};
+
+#define EDID_EST_TIMINGS 16
+#define EDID_STD_TIMINGS 8
+#define EDID_DETAILED_TIMINGS 4
+
+/**
+ * add_established_modes - get est. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Each EDID block contains a bitmap of the supported "established modes" list
+ * (defined above). Tease them out and add them to the global modes list.
+ */
+static int add_established_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ unsigned long est_bits = edid->established_timings.t1 |
+ (edid->established_timings.t2 << 8) |
+ ((edid->established_timings.mfg_rsvd & 0x80) << 9);
+ int i, modes = 0;
+
+ for (i = 0; i <= EDID_EST_TIMINGS; i++)
+ if (est_bits & (1<<i)) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ return modes;
+}
+/**
+ * stanard_timing_level - get std. timing level(CVT/GTF/DMT)
+ * @edid: EDID block to scan
+ */
+static int standard_timing_level(struct edid *edid)
+{
+ if (edid->revision >= 2) {
+ if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
+ return LEVEL_CVT;
+ return LEVEL_GTF;
+ }
+ return LEVEL_DMT;
+}
+
+/**
+ * add_standard_modes - get std. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Standard modes can be calculated using the CVT standard. Grab them from
+ * @edid, calculate them, and add them to the list.
+ */
+static int add_standard_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int i, modes = 0;
+ int timing_level;
+
+ timing_level = standard_timing_level(edid);
+
+ for (i = 0; i < EDID_STD_TIMINGS; i++) {
+ struct std_timing *t = &edid->standard_timings[i];
+ struct drm_display_mode *newmode;
+
+ /* If std timings bytes are 1, 1 it's empty */
+ if (t->hsize == 1 && t->vfreq_aspect == 1)
+ continue;
+
+ newmode = drm_mode_std(dev, &edid->standard_timings[i],
+ edid->revision, timing_level);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ return modes;
+}
+
+/*
+ * XXX fix this for:
+ * - GTF secondary curve formula
+ * - EDID 1.4 range offsets
+ * - CVT extended bits
+ */
+static bool
+mode_in_range(struct drm_display_mode *mode, struct detailed_timing *timing)
+{
+ struct detailed_data_monitor_range *range;
+ int hsync, vrefresh;
+
+ range = &timing->data.other_data.data.range;
+
+ hsync = drm_mode_hsync(mode);
+ vrefresh = drm_mode_vrefresh(mode);
+
+ if (hsync < range->min_hfreq_khz || hsync > range->max_hfreq_khz)
+ return false;
+
+ if (vrefresh < range->min_vfreq || vrefresh > range->max_vfreq)
+ return false;
+
+ if (range->pixel_clock_mhz && range->pixel_clock_mhz != 0xff) {
+ /* be forgiving since it's in units of 10MHz */
+ int max_clock = range->pixel_clock_mhz * 10 + 9;
+ max_clock *= 1000;
+ if (mode->clock > max_clock)
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will
+ * need to account for them.
+ */
+static int drm_gtf_modes_for_range(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ if (mode_in_range(drm_dmt_modes + i, timing)) {
+ newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ return modes;
+}
+
+static int drm_cvt_modes(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, j, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+ struct cvt_timing *cvt;
+ const int rates[] = { 60, 85, 75, 60, 50 };
+
+ for (i = 0; i < 4; i++) {
+ int width, height;
+ cvt = &(timing->data.other_data.data.cvt[i]);
+
+ height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
+ switch (cvt->code[1] & 0xc0) {
+ case 0x00:
+ width = height * 4 / 3;
+ break;
+ case 0x40:
+ width = height * 16 / 9;
+ break;
+ case 0x80:
+ width = height * 16 / 10;
+ break;
+ case 0xc0:
+ width = height * 15 / 9;
+ break;
+ }
+
+ for (j = 1; j < 5; j++) {
+ if (cvt->code[2] & (1 << j)) {
+ newmode = drm_cvt_mode(dev, width, height,
+ rates[j], j == 0,
+ false, false);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static int add_detailed_modes(struct drm_connector *connector,
+ struct detailed_timing *timing,
+ struct edid *edid, u32 quirks, int preferred)
+{
+ int i, modes = 0;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ int timing_level = standard_timing_level(edid);
+ int gtf = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ if (timing->pixel_clock) {
+ newmode = drm_mode_detailed(dev, edid, timing, quirks);
+ if (!newmode)
+ return 0;
+
+ if (preferred)
+ newmode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_probed_add(connector, newmode);
+ return 1;
+ }
+
+ /* other timing types */
+ switch (data->type) {
+ case EDID_DETAIL_MONITOR_RANGE:
+ if (gtf)
+ modes += drm_gtf_modes_for_range(connector, timing);
+ break;
+ case EDID_DETAIL_STD_MODES:
+ /* Six modes per detailed section */
+ for (i = 0; i < 6; i++) {
+ struct std_timing *std;
+ struct drm_display_mode *newmode;
+
+ std = &data->data.timings[i];
+ newmode = drm_mode_std(dev, std, edid->revision,
+ timing_level);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ break;
+ case EDID_DETAIL_CVT_3BYTE:
+ modes += drm_cvt_modes(connector, timing);
+ break;
+ default:
+ break;
+ }
+
+ return modes;
+}
+
+/**
+ * add_detailed_info - get detailed mode info from EDID data
+ * @connector: attached connector
+ * @edid: EDID block to scan
+ * @quirks: quirks to apply
+ *
+ * Some of the detailed timing sections may contain mode information. Grab
+ * it and add it to the list.
+ */
+static int add_detailed_info(struct drm_connector *connector,
+ struct edid *edid, u32 quirks)
+{
+ int i, modes = 0;
+
+ for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
+ struct detailed_timing *timing = &edid->detailed_timings[i];
+ int preferred = (i == 0) && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
+
+ /* In 1.0, only timings are allowed */
+ if (!timing->pixel_clock && edid->version == 1 &&
+ edid->revision == 0)
+ continue;
+
+ modes += add_detailed_modes(connector, timing, edid, quirks,
+ preferred);
+ }
+
+ return modes;
+}
+
+/**
+ * add_detailed_mode_eedid - get detailed mode info from addtional timing
+ * EDID block
+ * @connector: attached connector
+ * @edid: EDID block to scan(It is only to get addtional timing EDID block)
+ * @quirks: quirks to apply
+ *
+ * Some of the detailed timing sections may contain mode information. Grab
+ * it and add it to the list.
+ */
+static int add_detailed_info_eedid(struct drm_connector *connector,
+ struct edid *edid, u32 quirks)
+{
+ int i, modes = 0;
+ char *edid_ext = NULL;
+ struct detailed_timing *timing;
+ int edid_ext_num;
+ int start_offset, end_offset;
+ int timing_level;
+
+ if (edid->version == 1 && edid->revision < 3) {
+ /* If the EDID version is less than 1.3, there is no
+ * extension EDID.
+ */
+ return 0;
+ }
+ if (!edid->extensions) {
+ /* if there is no extension EDID, it is unnecessary to
+ * parse the E-EDID to get detailed info
+ */
+ return 0;
+ }
+
+ /* Chose real EDID extension number */
+ edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
+ MAX_EDID_EXT_NUM : edid->extensions;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid_ext_num; i++) {
+ edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
+ /* This block is CEA extension */
+ if (edid_ext[0] == 0x02)
+ break;
+ }
+
+ if (i == edid_ext_num) {
+ /* if there is no additional timing EDID block, return */
+ return 0;
+ }
+
+ /* Get the start offset of detailed timing block */
+ start_offset = edid_ext[2];
+ if (start_offset == 0) {
+ /* If the start_offset is zero, it means that neither detailed
+ * info nor data block exist. In such case it is also
+ * unnecessary to parse the detailed timing info.
+ */
+ return 0;
+ }
+
+ timing_level = standard_timing_level(edid);
+ end_offset = EDID_LENGTH;
+ end_offset -= sizeof(struct detailed_timing);
+ for (i = start_offset; i < end_offset;
+ i += sizeof(struct detailed_timing)) {
+ timing = (struct detailed_timing *)(edid_ext + i);
+ modes += add_detailed_modes(connector, timing, edid, quirks, 0);
+ }
+
+ return modes;
+}
+
+#define DDC_ADDR 0x50
+/**
+ * Get EDID information via I2C.
+ *
+ * \param adapter : i2c device adaptor
+ * \param buf : EDID data buffer to be filled
+ * \param len : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Try to fetch EDID information by calling i2c driver function.
+ */
+int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
+ unsigned char *buf, int len)
+{
+ unsigned char start = 0x0;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = DDC_ADDR,
+ .flags = 0,
+ .len = 1,
+ .buf = &start,
+ }, {
+ .addr = DDC_ADDR,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = buf,
+ }
+ };
+
+ if (i2c_transfer(adapter, msgs, 2) == 2)
+ return 0;
+
+ return -1;
+}
+EXPORT_SYMBOL(drm_do_probe_ddc_edid);
+
+static int drm_ddc_read_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter,
+ char *buf, int len)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter, buf, len))
+ return -1;
+ if (edid_is_valid((struct edid *)buf))
+ return 0;
+ }
+
+ /* repeated checksum failures; warn, but carry on */
+ dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return -1;
+}
+
+/**
+ * drm_get_edid - get EDID data, if available
+ * @connector: connector we're probing
+ * @adapter: i2c adapter to use for DDC
+ *
+ * Poke the given connector's i2c channel to grab EDID data if possible.
+ *
+ * Return edid data or NULL if we couldn't find any.
+ */
+struct edid *drm_get_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter)
+{
+ int ret;
+ struct edid *edid;
+
+ edid = kmalloc(EDID_LENGTH * (MAX_EDID_EXT_NUM + 1),
+ GFP_KERNEL);
+ if (edid == NULL) {
+ dev_warn(&connector->dev->pdev->dev,
+ "Failed to allocate EDID\n");
+ goto end;
+ }
+
+ /* Read first EDID block */
+ ret = drm_ddc_read_edid(connector, adapter,
+ (unsigned char *)edid, EDID_LENGTH);
+ if (ret != 0)
+ goto clean_up;
+
+ /* There are EDID extensions to be read */
+ if (edid->extensions != 0) {
+ int edid_ext_num = edid->extensions;
+
+ if (edid_ext_num > MAX_EDID_EXT_NUM) {
+ dev_warn(&connector->dev->pdev->dev,
+ "The number of extension(%d) is "
+ "over max (%d), actually read number (%d)\n",
+ edid_ext_num, MAX_EDID_EXT_NUM,
+ MAX_EDID_EXT_NUM);
+ /* Reset EDID extension number to be read */
+ edid_ext_num = MAX_EDID_EXT_NUM;
+ }
+ /* Read EDID including extensions too */
+ ret = drm_ddc_read_edid(connector, adapter, (char *)edid,
+ EDID_LENGTH * (edid_ext_num + 1));
+ if (ret != 0)
+ goto clean_up;
+
+ }
+
+ connector->display_info.raw_edid = (char *)edid;
+ goto end;
+
+clean_up:
+ kfree(edid);
+ edid = NULL;
+end:
+ return edid;
+
+}
+EXPORT_SYMBOL(drm_get_edid);
+
+#define HDMI_IDENTIFIER 0x000C03
+#define VENDOR_BLOCK 0x03
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(struct edid *edid)
+{
+ char *edid_ext = NULL;
+ int i, hdmi_id, edid_ext_num;
+ int start_offset, end_offset;
+ bool is_hdmi = false;
+
+ /* No EDID or EDID extensions */
+ if (edid == NULL || edid->extensions == 0)
+ goto end;
+
+ /* Chose real EDID extension number */
+ edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
+ MAX_EDID_EXT_NUM : edid->extensions;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid_ext_num; i++) {
+ edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
+ /* This block is CEA extension */
+ if (edid_ext[0] == 0x02)
+ break;
+ }
+
+ if (i == edid_ext_num)
+ goto end;
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ /*
+ * Because HDMI identifier is in Vendor Specific Block,
+ * search it from all data blocks of CEA extension.
+ */
+ for (i = start_offset; i < end_offset;
+ /* Increased by data block len */
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ /* Find vendor specific block */
+ if ((edid_ext[i] >> 5) == VENDOR_BLOCK) {
+ hdmi_id = edid_ext[i + 1] | (edid_ext[i + 2] << 8) |
+ edid_ext[i + 3] << 16;
+ /* Find HDMI identifier */
+ if (hdmi_id == HDMI_IDENTIFIER)
+ is_hdmi = true;
+ break;
+ }
+ }
+
+end:
+ return is_hdmi;
+}
+EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+
+/**
+ * drm_add_edid_modes - add modes from EDID data, if available
+ * @connector: connector we're probing
+ * @edid: edid data
+ *
+ * Add the specified modes to the connector's mode list.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int num_modes = 0;
+ u32 quirks;
+
+ if (edid == NULL) {
+ return 0;
+ }
+ if (!edid_is_valid(edid)) {
+ dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return 0;
+ }
+
+ quirks = edid_get_quirks(edid);
+
+ num_modes += add_established_modes(connector, edid);
+ num_modes += add_standard_modes(connector, edid);
+ num_modes += add_detailed_info(connector, edid, quirks);
+ num_modes += add_detailed_info_eedid(connector, edid, quirks);
+
+ if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
+ edid_fixup_preferred(connector, quirks);
+
+ connector->display_info.serration_vsync = (edid->input & DRM_EDID_INPUT_SERRATION_VSYNC) ? 1 : 0;
+ connector->display_info.sync_on_green = (edid->input & DRM_EDID_INPUT_SYNC_ON_GREEN) ? 1 : 0;
+ connector->display_info.composite_sync = (edid->input & DRM_EDID_INPUT_COMPOSITE_SYNC) ? 1 : 0;
+ connector->display_info.separate_syncs = (edid->input & DRM_EDID_INPUT_SEPARATE_SYNCS) ? 1 : 0;
+ connector->display_info.blank_to_black = (edid->input & DRM_EDID_INPUT_BLANK_TO_BLACK) ? 1 : 0;
+ connector->display_info.video_level = (edid->input & DRM_EDID_INPUT_VIDEO_LEVEL) >> 5;
+ connector->display_info.digital = (edid->input & DRM_EDID_INPUT_DIGITAL) ? 1 : 0;
+ connector->display_info.width_mm = edid->width_cm * 10;
+ connector->display_info.height_mm = edid->height_cm * 10;
+ connector->display_info.gamma = edid->gamma;
+ connector->display_info.gtf_supported = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF) ? 1 : 0;
+ connector->display_info.standard_color = (edid->features & DRM_EDID_FEATURE_STANDARD_COLOR) ? 1 : 0;
+ connector->display_info.display_type = (edid->features & DRM_EDID_FEATURE_DISPLAY_TYPE) >> 3;
+ connector->display_info.active_off_supported = (edid->features & DRM_EDID_FEATURE_PM_ACTIVE_OFF) ? 1 : 0;
+ connector->display_info.suspend_supported = (edid->features & DRM_EDID_FEATURE_PM_SUSPEND) ? 1 : 0;
+ connector->display_info.standby_supported = (edid->features & DRM_EDID_FEATURE_PM_STANDBY) ? 1 : 0;
+ connector->display_info.gamma = edid->gamma;
+
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_edid_modes);
+
+/**
+ * drm_add_modes_noedid - add modes for the connectors without EDID
+ * @connector: connector we're probing
+ * @hdisplay: the horizontal display limit
+ * @vdisplay: the vertical display limit
+ *
+ * Add the specified modes to the connector's mode list. Only when the
+ * hdisplay/vdisplay is not beyond the given limit, it will be added.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_modes_noedid(struct drm_connector *connector,
+ int hdisplay, int vdisplay)
+{
+ int i, count, num_modes = 0;
+ struct drm_display_mode *mode, *ptr;
+ struct drm_device *dev = connector->dev;
+
+ count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+ if (hdisplay < 0)
+ hdisplay = 0;
+ if (vdisplay < 0)
+ vdisplay = 0;
+
+ for (i = 0; i < count; i++) {
+ ptr = &drm_dmt_modes[i];
+ if (hdisplay && vdisplay) {
+ /*
+ * Only when two are valid, they will be used to check
+ * whether the mode should be added to the mode list of
+ * the connector.
+ */
+ if (ptr->hdisplay > hdisplay ||
+ ptr->vdisplay > vdisplay)
+ continue;
+ }
+ if (drm_mode_vrefresh(ptr) > 61)
+ continue;
+ mode = drm_mode_duplicate(dev, ptr);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ num_modes++;
+ }
+ }
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_modes_noedid);
--- /dev/null
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drm_encoder_slave.h"
+
+/**
+ * drm_i2c_encoder_init - Initialize an I2C slave encoder
+ * @dev: DRM device.
+ * @encoder: Encoder to be attached to the I2C device. You aren't
+ * required to have called drm_encoder_init() before.
+ * @adap: I2C adapter that will be used to communicate with
+ * the device.
+ * @info: Information that will be used to create the I2C device.
+ * Required fields are @addr and @type.
+ *
+ * Create an I2C device on the specified bus (the module containing its
+ * driver is transparently loaded) and attach it to the specified
+ * &drm_encoder_slave. The @slave_funcs field will be initialized with
+ * the hooks provided by the slave driver.
+ *
+ * Returns 0 on success or a negative errno on failure, in particular,
+ * -ENODEV is returned when no matching driver is found.
+ */
+int drm_i2c_encoder_init(struct drm_device *dev,
+ struct drm_encoder_slave *encoder,
+ struct i2c_adapter *adap,
+ const struct i2c_board_info *info)
+{
+ char modalias[sizeof(I2C_MODULE_PREFIX)
+ + I2C_NAME_SIZE];
+ struct module *module = NULL;
+ struct i2c_client *client;
+ struct drm_i2c_encoder_driver *encoder_drv;
+ int err = 0;
+
+ snprintf(modalias, sizeof(modalias),
+ "%s%s", I2C_MODULE_PREFIX, info->type);
+ request_module(modalias);
+
+ client = i2c_new_device(adap, info);
+ if (!client) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!client->driver) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ module = client->driver->driver.owner;
+ if (!try_module_get(module)) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ encoder->bus_priv = client;
+
+ encoder_drv = to_drm_i2c_encoder_driver(client->driver);
+
+ err = encoder_drv->encoder_init(client, dev, encoder);
+ if (err)
+ goto fail_unregister;
+
+ return 0;
+
+fail_unregister:
+ i2c_unregister_device(client);
+ module_put(module);
+fail:
+ return err;
+}
+EXPORT_SYMBOL(drm_i2c_encoder_init);
+
+/**
+ * drm_i2c_encoder_destroy - Unregister the I2C device backing an encoder
+ * @drm_encoder: Encoder to be unregistered.
+ *
+ * This should be called from the @destroy method of an I2C slave
+ * encoder driver once I2C access is no longer needed.
+ */
+void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
+{
+ struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
+ struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
+ struct module *module = client->driver->driver.owner;
+
+ i2c_unregister_device(client);
+ encoder->bus_priv = NULL;
+
+ module_put(module);
+}
+EXPORT_SYMBOL(drm_i2c_encoder_destroy);
--- /dev/null
+/**
+ * \file drm_fops.c
+ * File operations for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Daryll Strauss <daryll@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/poll.h>
+#include <linux/smp_lock.h>
+
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev);
+
+static int drm_setup(struct drm_device * dev)
+{
+ int i;
+ int ret;
+
+ if (dev->driver->firstopen) {
+ ret = dev->driver->firstopen(dev);
+ if (ret != 0)
+ return ret;
+ }
+
+ atomic_set(&dev->ioctl_count, 0);
+ atomic_set(&dev->vma_count, 0);
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
+ i = drm_dma_setup(dev);
+ if (i < 0)
+ return i;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
+ atomic_set(&dev->counts[i], 0);
+
+ dev->sigdata.lock = NULL;
+
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_waitqueue_head(&dev->context_wait);
+ dev->if_version = 0;
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_async = NULL;
+ init_waitqueue_head(&dev->buf_readers);
+ init_waitqueue_head(&dev->buf_writers);
+
+ DRM_DEBUG("\n");
+
+ /*
+ * The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+
+ return 0;
+}
+
+/**
+ * Open file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the DRM device with the same minor number, calls open_helper(), and
+ * increments the device open count. If the open count was previous at zero,
+ * i.e., it's the first that the device is open, then calls setup().
+ */
+int drm_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ int minor_id = iminor(inode);
+ struct drm_minor *minor;
+ int retcode = 0;
+
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ return -ENODEV;
+
+ if (!(dev = minor->dev))
+ return -ENODEV;
+
+ retcode = drm_open_helper(inode, filp, dev);
+ if (!retcode) {
+ atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+ spin_lock(&dev->count_lock);
+ if (!dev->open_count++) {
+ spin_unlock(&dev->count_lock);
+ retcode = drm_setup(dev);
+ goto out;
+ }
+ spin_unlock(&dev->count_lock);
+ }
+out:
+ mutex_lock(&dev->struct_mutex);
+ if (minor->type == DRM_MINOR_LEGACY) {
+ BUG_ON((dev->dev_mapping != NULL) &&
+ (dev->dev_mapping != inode->i_mapping));
+ if (dev->dev_mapping == NULL)
+ dev->dev_mapping = inode->i_mapping;
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_open);
+
+/**
+ * File \c open operation.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ *
+ * Puts the dev->fops corresponding to the device minor number into
+ * \p filp, call the \c open method, and restore the file operations.
+ */
+int drm_stub_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ struct drm_minor *minor;
+ int minor_id = iminor(inode);
+ int err = -ENODEV;
+ const struct file_operations *old_fops;
+
+ DRM_DEBUG("\n");
+
+ /* BKL pushdown: note that nothing else serializes idr_find() */
+ lock_kernel();
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ goto out;
+
+ if (!(dev = minor->dev))
+ goto out;
+
+ old_fops = filp->f_op;
+ filp->f_op = fops_get(&dev->driver->fops);
+ if (filp->f_op == NULL) {
+ filp->f_op = old_fops;
+ goto out;
+ }
+ if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
+ fops_put(filp->f_op);
+ filp->f_op = fops_get(old_fops);
+ }
+ fops_put(old_fops);
+
+out:
+ unlock_kernel();
+ return err;
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static int drm_cpu_valid(void)
+{
+#if defined(__i386__)
+ if (boot_cpu_data.x86 == 3)
+ return 0; /* No cmpxchg on a 386 */
+#endif
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ return 0; /* No cmpxchg before v9 sparc. */
+#endif
+ return 1;
+}
+
+/**
+ * Called whenever a process opens /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param dev device.
+ * \return zero on success or a negative number on failure.
+ *
+ * Creates and initializes a drm_file structure for the file private data in \p
+ * filp and add it into the double linked list in \p dev.
+ */
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev)
+{
+ int minor_id = iminor(inode);
+ struct drm_file *priv;
+ int ret;
+
+ if (filp->f_flags & O_EXCL)
+ return -EBUSY; /* No exclusive opens */
+ if (!drm_cpu_valid())
+ return -EINVAL;
+
+ DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
+
+ priv = kmalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ memset(priv, 0, sizeof(*priv));
+ filp->private_data = priv;
+ priv->filp = filp;
+ priv->uid = current_euid();
+ priv->pid = task_pid_nr(current);
+ priv->minor = idr_find(&drm_minors_idr, minor_id);
+ priv->ioctl_count = 0;
+ /* for compatibility root is always authenticated */
+ priv->authenticated = capable(CAP_SYS_ADMIN);
+ priv->lock_count = 0;
+
+ INIT_LIST_HEAD(&priv->lhead);
+ INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->event_list);
+ init_waitqueue_head(&priv->event_wait);
+ priv->event_space = 4096; /* set aside 4k for event buffer */
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_open(dev, priv);
+
+ if (dev->driver->open) {
+ ret = dev->driver->open(dev, priv);
+ if (ret < 0)
+ goto out_free;
+ }
+
+
+ /* if there is no current master make this fd it */
+ mutex_lock(&dev->struct_mutex);
+ if (!priv->minor->master) {
+ /* create a new master */
+ priv->minor->master = drm_master_create(priv->minor);
+ if (!priv->minor->master) {
+ mutex_unlock(&dev->struct_mutex);
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ priv->is_master = 1;
+ /* take another reference for the copy in the local file priv */
+ priv->master = drm_master_get(priv->minor->master);
+
+ priv->authenticated = 1;
+
+ mutex_unlock(&dev->struct_mutex);
+ if (dev->driver->master_create) {
+ ret = dev->driver->master_create(dev, priv->master);
+ if (ret) {
+ mutex_lock(&dev->struct_mutex);
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, priv, true);
+ if (ret) {
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ } else {
+ /* get a reference to the master */
+ priv->master = drm_master_get(priv->minor->master);
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&priv->lhead, &dev->filelist);
+ mutex_unlock(&dev->struct_mutex);
+
+#ifdef __alpha__
+ /*
+ * Default the hose
+ */
+ if (!dev->hose) {
+ struct pci_dev *pci_dev;
+ pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+ if (pci_dev) {
+ dev->hose = pci_dev->sysdata;
+ pci_dev_put(pci_dev);
+ }
+ if (!dev->hose) {
+ struct pci_bus *b = pci_bus_b(pci_root_buses.next);
+ if (b)
+ dev->hose = b->sysdata;
+ }
+ }
+#endif
+
+ return 0;
+ out_free:
+ kfree(priv);
+ filp->private_data = NULL;
+ return ret;
+}
+
+/** No-op. */
+int drm_fasync(int fd, struct file *filp, int on)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
+ (long)old_encode_dev(priv->minor->device));
+ return fasync_helper(fd, filp, on, &dev->buf_async);
+}
+EXPORT_SYMBOL(drm_fasync);
+
+/*
+ * Reclaim locked buffers; note that this may be a bad idea if the current
+ * context doesn't have the hw lock...
+ */
+static void drm_reclaim_locked_buffers(struct drm_device *dev, struct file *f)
+{
+ struct drm_file *file_priv = f->private_data;
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ } else {
+ unsigned long _end = jiffies + 3 * DRM_HZ;
+ int locked = 0;
+
+ drm_idlelock_take(&file_priv->master->lock);
+
+ /*
+ * Wait for a while.
+ */
+ do {
+ spin_lock_bh(&file_priv->master->lock.spinlock);
+ locked = file_priv->master->lock.idle_has_lock;
+ spin_unlock_bh(&file_priv->master->lock.spinlock);
+ if (locked)
+ break;
+ schedule();
+ } while (!time_after_eq(jiffies, _end));
+
+ if (!locked) {
+ DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
+ "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
+ "\tI will go on reclaiming the buffers anyway.\n");
+ }
+
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+}
+
+static void drm_master_release(struct drm_device *dev, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+
+ if (dev->driver->reclaim_buffers_locked &&
+ file_priv->master->lock.hw_lock)
+ drm_reclaim_locked_buffers(dev, filp);
+
+ if (dev->driver->reclaim_buffers_idlelocked &&
+ file_priv->master->lock.hw_lock) {
+ drm_idlelock_take(&file_priv->master->lock);
+ dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
+ drm_idlelock_release(&file_priv->master->lock);
+ }
+
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ DRM_DEBUG("File %p released, freeing lock for context %d\n",
+ filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ drm_lock_free(&file_priv->master->lock,
+ _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !dev->driver->reclaim_buffers_locked) {
+ dev->driver->reclaim_buffers(dev, file_priv);
+ }
+}
+
+static void drm_events_release(struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e, *et;
+ struct drm_pending_vblank_event *v, *vt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Remove pending flips */
+ list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
+ if (v->base.file_priv == file_priv) {
+ list_del(&v->base.link);
+ drm_vblank_put(dev, v->pipe);
+ v->base.destroy(&v->base);
+ }
+
+ /* Remove unconsumed events */
+ list_for_each_entry_safe(e, et, &file_priv->event_list, link)
+ e->destroy(e);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * Release file.
+ *
+ * \param inode device inode
+ * \param file_priv DRM file private.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the hardware lock is held then free it, and take it again for the kernel
+ * context since it's necessary to reclaim buffers. Unlink the file private
+ * data from its list and free it. Decreases the open count and if it reaches
+ * zero calls drm_lastclose().
+ */
+int drm_release(struct inode *inode, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ int retcode = 0;
+
+ lock_kernel();
+
+ DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+ if (dev->driver->preclose)
+ dev->driver->preclose(dev, file_priv);
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+ task_pid_nr(current),
+ (long)old_encode_dev(file_priv->minor->device),
+ dev->open_count);
+
+ /* if the master has gone away we can't do anything with the lock */
+ if (file_priv->minor->master)
+ drm_master_release(dev, filp);
+
+ drm_events_release(file_priv);
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_release(dev, file_priv);
+
+ if (dev->driver->driver_features & DRIVER_MODESET)
+ drm_fb_release(file_priv);
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->tag == file_priv &&
+ pos->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev,
+ pos->handle);
+
+ drm_ctxbitmap_free(dev, pos->handle);
+
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (file_priv->is_master) {
+ struct drm_master *master = file_priv->master;
+ struct drm_file *temp;
+ list_for_each_entry(temp, &dev->filelist, lhead) {
+ if ((temp->master == file_priv->master) &&
+ (temp != file_priv))
+ temp->authenticated = 0;
+ }
+
+ /**
+ * Since the master is disappearing, so is the
+ * possibility to lock.
+ */
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+
+ if (file_priv->minor->master == file_priv->master) {
+ /* drop the reference held my the minor */
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, true);
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+
+ /* drop the reference held my the file priv */
+ drm_master_put(&file_priv->master);
+ file_priv->is_master = 0;
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (dev->driver->postclose)
+ dev->driver->postclose(dev, file_priv);
+ kfree(file_priv);
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+ atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
+ spin_lock(&dev->count_lock);
+ if (!--dev->open_count) {
+ if (atomic_read(&dev->ioctl_count)) {
+ DRM_ERROR("Device busy: %d\n",
+ atomic_read(&dev->ioctl_count));
+ spin_unlock(&dev->count_lock);
+ unlock_kernel();
+ return -EBUSY;
+ }
+ spin_unlock(&dev->count_lock);
+ unlock_kernel();
+ return drm_lastclose(dev);
+ }
+ spin_unlock(&dev->count_lock);
+
+ unlock_kernel();
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_release);
+
+static bool
+drm_dequeue_event(struct drm_file *file_priv,
+ size_t total, size_t max, struct drm_pending_event **out)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e;
+ unsigned long flags;
+ bool ret = false;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ *out = NULL;
+ if (list_empty(&file_priv->event_list))
+ goto out;
+ e = list_first_entry(&file_priv->event_list,
+ struct drm_pending_event, link);
+ if (e->event->length + total > max)
+ goto out;
+
+ file_priv->event_space += e->event->length;
+ list_del(&e->link);
+ *out = e;
+ ret = true;
+
+out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ return ret;
+}
+
+ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_pending_event *e;
+ size_t total;
+ ssize_t ret;
+
+ ret = wait_event_interruptible(file_priv->event_wait,
+ !list_empty(&file_priv->event_list));
+ if (ret < 0)
+ return ret;
+
+ total = 0;
+ while (drm_dequeue_event(file_priv, total, count, &e)) {
+ if (copy_to_user(buffer + total,
+ e->event, e->event->length)) {
+ total = -EFAULT;
+ break;
+ }
+
+ total += e->event->length;
+ e->destroy(e);
+ }
+
+ return total;
+}
+EXPORT_SYMBOL(drm_read);
+
+unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(filp, &file_priv->event_wait, wait);
+
+ if (!list_empty(&file_priv->event_list))
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+EXPORT_SYMBOL(drm_poll);
--- /dev/null
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/mman.h>
+#include <linux/pagemap.h>
+#include "drmP.h"
+
+/** @file drm_gem.c
+ *
+ * This file provides some of the base ioctls and library routines for
+ * the graphics memory manager implemented by each device driver.
+ *
+ * Because various devices have different requirements in terms of
+ * synchronization and migration strategies, implementing that is left up to
+ * the driver, and all that the general API provides should be generic --
+ * allocating objects, reading/writing data with the cpu, freeing objects.
+ * Even there, platform-dependent optimizations for reading/writing data with
+ * the CPU mean we'll likely hook those out to driver-specific calls. However,
+ * the DRI2 implementation wants to have at least allocate/mmap be generic.
+ *
+ * The goal was to have swap-backed object allocation managed through
+ * struct file. However, file descriptors as handles to a struct file have
+ * two major failings:
+ * - Process limits prevent more than 1024 or so being used at a time by
+ * default.
+ * - Inability to allocate high fds will aggravate the X Server's select()
+ * handling, and likely that of many GL client applications as well.
+ *
+ * This led to a plan of using our own integer IDs (called handles, following
+ * DRM terminology) to mimic fds, and implement the fd syscalls we need as
+ * ioctls. The objects themselves will still include the struct file so
+ * that we can transition to fds if the required kernel infrastructure shows
+ * up at a later date, and as our interface with shmfs for memory allocation.
+ */
+
+/*
+ * We make up offsets for buffer objects so we can recognize them at
+ * mmap time.
+ */
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
+
+/**
+ * Initialize the GEM device fields
+ */
+
+int
+drm_gem_init(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm;
+
+ spin_lock_init(&dev->object_name_lock);
+ idr_init(&dev->object_name_idr);
+ atomic_set(&dev->object_count, 0);
+ atomic_set(&dev->object_memory, 0);
+ atomic_set(&dev->pin_count, 0);
+ atomic_set(&dev->pin_memory, 0);
+ atomic_set(&dev->gtt_count, 0);
+ atomic_set(&dev->gtt_memory, 0);
+
+ mm = kzalloc(sizeof(struct drm_gem_mm), GFP_KERNEL);
+ if (!mm) {
+ DRM_ERROR("out of memory\n");
+ return -ENOMEM;
+ }
+
+ dev->mm_private = mm;
+
+ if (drm_ht_create(&mm->offset_hash, 19)) {
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ if (drm_mm_init(&mm->offset_manager, DRM_FILE_PAGE_OFFSET_START,
+ DRM_FILE_PAGE_OFFSET_SIZE)) {
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void
+drm_gem_destroy(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm = dev->mm_private;
+
+ drm_mm_takedown(&mm->offset_manager);
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ dev->mm_private = NULL;
+}
+
+/**
+ * Allocate a GEM object of the specified size with shmfs backing store
+ */
+struct drm_gem_object *
+drm_gem_object_alloc(struct drm_device *dev, size_t size)
+{
+ struct drm_gem_object *obj;
+
+ BUG_ON((size & (PAGE_SIZE - 1)) != 0);
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ goto free;
+
+ obj->dev = dev;
+ obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
+ if (IS_ERR(obj->filp))
+ goto free;
+
+ /* Basically we want to disable the OOM killer and handle ENOMEM
+ * ourselves by sacrificing pages from cached buffers.
+ * XXX shmem_file_[gs]et_gfp_mask()
+ */
+ mapping_set_gfp_mask(obj->filp->f_path.dentry->d_inode->i_mapping,
+ GFP_HIGHUSER |
+ __GFP_COLD |
+ __GFP_FS |
+ __GFP_RECLAIMABLE |
+ __GFP_NORETRY |
+ __GFP_NOWARN |
+ __GFP_NOMEMALLOC);
+
+ kref_init(&obj->refcount);
+ kref_init(&obj->handlecount);
+ obj->size = size;
+ if (dev->driver->gem_init_object != NULL &&
+ dev->driver->gem_init_object(obj) != 0) {
+ goto fput;
+ }
+ atomic_inc(&dev->object_count);
+ atomic_add(obj->size, &dev->object_memory);
+ return obj;
+fput:
+ fput(obj->filp);
+free:
+ kfree(obj);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_gem_object_alloc);
+
+/**
+ * Removes the mapping from handle to filp for this object.
+ */
+static int
+drm_gem_handle_delete(struct drm_file *filp, u32 handle)
+{
+ struct drm_device *dev;
+ struct drm_gem_object *obj;
+
+ /* This is gross. The idr system doesn't let us try a delete and
+ * return an error code. It just spews if you fail at deleting.
+ * So, we have to grab a lock around finding the object and then
+ * doing the delete on it and dropping the refcount, or the user
+ * could race us to double-decrement the refcount and cause a
+ * use-after-free later. Given the frequency of our handle lookups,
+ * we may want to use ida for number allocation and a hash table
+ * for the pointers, anyway.
+ */
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return -EINVAL;
+ }
+ dev = obj->dev;
+
+ /* Release reference and decrement refcount. */
+ idr_remove(&filp->object_idr, handle);
+ spin_unlock(&filp->table_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_handle_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Create a handle for this object. This adds a handle reference
+ * to the object, which includes a regular reference count. Callers
+ * will likely want to dereference the object afterwards.
+ */
+int
+drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep)
+{
+ int ret;
+
+ /*
+ * Get the user-visible handle using idr.
+ */
+again:
+ /* ensure there is space available to allocate a handle */
+ if (idr_pre_get(&file_priv->object_idr, GFP_KERNEL) == 0)
+ return -ENOMEM;
+
+ /* do the allocation under our spinlock */
+ spin_lock(&file_priv->table_lock);
+ ret = idr_get_new_above(&file_priv->object_idr, obj, 1, (int *)handlep);
+ spin_unlock(&file_priv->table_lock);
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ return ret;
+
+ drm_gem_object_handle_reference(obj);
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_handle_create);
+
+/** Returns a reference to the object named by the handle. */
+struct drm_gem_object *
+drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
+ u32 handle)
+{
+ struct drm_gem_object *obj;
+
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return NULL;
+ }
+
+ drm_gem_object_reference(obj);
+
+ spin_unlock(&filp->table_lock);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_gem_object_lookup);
+
+/**
+ * Releases the handle to an mm object.
+ */
+int
+drm_gem_close_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_close *args = data;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ ret = drm_gem_handle_delete(file_priv, args->handle);
+
+ return ret;
+}
+
+/**
+ * Create a global name for an object, returning the name.
+ *
+ * Note that the name does not hold a reference; when the object
+ * is freed, the name goes away.
+ */
+int
+drm_gem_flink_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_flink *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (obj == NULL)
+ return -EBADF;
+
+again:
+ if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ spin_lock(&dev->object_name_lock);
+ if (!obj->name) {
+ ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
+ &obj->name);
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+
+ if (ret == -EAGAIN)
+ goto again;
+
+ if (ret != 0)
+ goto err;
+
+ /* Allocate a reference for the name table. */
+ drm_gem_object_reference(obj);
+ } else {
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+ ret = 0;
+ }
+
+err:
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
+/**
+ * Open an object using the global name, returning a handle and the size.
+ *
+ * This handle (of course) holds a reference to the object, so the object
+ * will not go away until the handle is deleted.
+ */
+int
+drm_gem_open_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_open *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+ u32 handle;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ spin_lock(&dev->object_name_lock);
+ obj = idr_find(&dev->object_name_idr, (int) args->name);
+ if (obj)
+ drm_gem_object_reference(obj);
+ spin_unlock(&dev->object_name_lock);
+ if (!obj)
+ return -ENOENT;
+
+ ret = drm_gem_handle_create(file_priv, obj, &handle);
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+ args->size = obj->size;
+
+ return 0;
+}
+
+/**
+ * Called at device open time, sets up the structure for handling refcounting
+ * of mm objects.
+ */
+void
+drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_init(&file_private->object_idr);
+ spin_lock_init(&file_private->table_lock);
+}
+
+/**
+ * Called at device close to release the file's
+ * handle references on objects.
+ */
+static int
+drm_gem_object_release_handle(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+
+ drm_gem_object_handle_unreference(obj);
+
+ return 0;
+}
+
+/**
+ * Called at close time when the filp is going away.
+ *
+ * Releases any remaining references on objects by this filp.
+ */
+void
+drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_for_each(&file_private->object_idr,
+ &drm_gem_object_release_handle, NULL);
+
+ idr_destroy(&file_private->object_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Called after the last reference to the object has been lost.
+ *
+ * Frees the object
+ */
+void
+drm_gem_object_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = (struct drm_gem_object *) kref;
+ struct drm_device *dev = obj->dev;
+
+ BUG_ON(!mutex_is_locked(&dev->struct_mutex));
+
+ if (dev->driver->gem_free_object != NULL)
+ dev->driver->gem_free_object(obj);
+
+ fput(obj->filp);
+ atomic_dec(&dev->object_count);
+ atomic_sub(obj->size, &dev->object_memory);
+ kfree(obj);
+}
+EXPORT_SYMBOL(drm_gem_object_free);
+
+/**
+ * Called after the last handle to the object has been closed
+ *
+ * Removes any name for the object. Note that this must be
+ * called before drm_gem_object_free or we'll be touching
+ * freed memory
+ */
+void
+drm_gem_object_handle_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = container_of(kref,
+ struct drm_gem_object,
+ handlecount);
+ struct drm_device *dev = obj->dev;
+
+ /* Remove any name for this object */
+ spin_lock(&dev->object_name_lock);
+ if (obj->name) {
+ idr_remove(&dev->object_name_idr, obj->name);
+ obj->name = 0;
+ spin_unlock(&dev->object_name_lock);
+ /*
+ * The object name held a reference to this object, drop
+ * that now.
+ */
+ drm_gem_object_unreference(obj);
+ } else
+ spin_unlock(&dev->object_name_lock);
+
+}
+EXPORT_SYMBOL(drm_gem_object_handle_free);
+
+void drm_gem_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+
+ drm_gem_object_reference(obj);
+}
+EXPORT_SYMBOL(drm_gem_vm_open);
+
+void drm_gem_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+ struct drm_device *dev = obj->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_close);
+
+
+/**
+ * drm_gem_mmap - memory map routine for GEM objects
+ * @filp: DRM file pointer
+ * @vma: VMA for the area to be mapped
+ *
+ * If a driver supports GEM object mapping, mmap calls on the DRM file
+ * descriptor will end up here.
+ *
+ * If we find the object based on the offset passed in (vma->vm_pgoff will
+ * contain the fake offset we created when the GTT map ioctl was called on
+ * the object), we set up the driver fault handler so that any accesses
+ * to the object can be trapped, to perform migration, GTT binding, surface
+ * register allocation, or performance monitoring.
+ */
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_local_map *map = NULL;
+ struct drm_gem_object *obj;
+ struct drm_hash_item *hash;
+ int ret = 0;
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (drm_ht_find_item(&mm->offset_hash, vma->vm_pgoff, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return drm_mmap(filp, vma);
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map ||
+ ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) {
+ ret = -EPERM;
+ goto out_unlock;
+ }
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ obj = map->handle;
+ if (!obj->dev->driver->gem_vm_ops) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_ops = obj->dev->driver->gem_vm_ops;
+ vma->vm_private_data = map->handle;
+ vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+
+ /* Take a ref for this mapping of the object, so that the fault
+ * handler can dereference the mmap offset's pointer to the object.
+ * This reference is cleaned up by the corresponding vm_close
+ * (which should happen whether the vma was created by this call, or
+ * by a vm_open due to mremap or partial unmap or whatever).
+ */
+ drm_gem_object_reference(obj);
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_mmap);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple open hash tab implementation.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_hashtab.h"
+#include <linux/hash.h>
+
+int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
+{
+ unsigned int i;
+
+ ht->size = 1 << order;
+ ht->order = order;
+ ht->fill = 0;
+ ht->table = NULL;
+ ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE);
+ if (!ht->use_vmalloc) {
+ ht->table = kcalloc(ht->size, sizeof(*ht->table), GFP_KERNEL);
+ }
+ if (!ht->table) {
+ ht->use_vmalloc = 1;
+ ht->table = vmalloc(ht->size*sizeof(*ht->table));
+ }
+ if (!ht->table) {
+ DRM_ERROR("Out of memory for hash table\n");
+ return -ENOMEM;
+ }
+ for (i=0; i< ht->size; ++i) {
+ INIT_HLIST_HEAD(&ht->table[i]);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_create);
+
+void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+ int count = 0;
+
+ hashed_key = hash_long(key, ht->order);
+ DRM_DEBUG("Key is 0x%08lx, Hashed key is 0x%08x\n", key, hashed_key);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ DRM_DEBUG("count %d, key: 0x%08lx\n", count++, entry->key);
+ }
+}
+
+static struct hlist_node *drm_ht_find_key(struct drm_open_hash *ht,
+ unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return list;
+ if (entry->key > key)
+ break;
+ }
+ return NULL;
+}
+
+
+int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list, *parent;
+ unsigned int hashed_key;
+ unsigned long key = item->key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ parent = NULL;
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return -EINVAL;
+ if (entry->key > key)
+ break;
+ parent = list;
+ }
+ if (parent) {
+ hlist_add_after(parent, &item->head);
+ } else {
+ hlist_add_head(&item->head, h_list);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_insert_item);
+
+/*
+ * Just insert an item and return any "bits" bit key that hasn't been
+ * used before.
+ */
+int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
+ unsigned long seed, int bits, int shift,
+ unsigned long add)
+{
+ int ret;
+ unsigned long mask = (1 << bits) - 1;
+ unsigned long first, unshifted_key;
+
+ unshifted_key = hash_long(seed, bits);
+ first = unshifted_key;
+ do {
+ item->key = (unshifted_key << shift) + add;
+ ret = drm_ht_insert_item(ht, item);
+ if (ret)
+ unshifted_key = (unshifted_key + 1) & mask;
+ } while(ret && (unshifted_key != first));
+
+ if (ret) {
+ DRM_ERROR("Available key bit space exhausted\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_just_insert_please);
+
+int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key,
+ struct drm_hash_item **item)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (!list)
+ return -EINVAL;
+
+ *item = hlist_entry(list, struct drm_hash_item, head);
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_find_item);
+
+int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (list) {
+ hlist_del_init(list);
+ ht->fill--;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ hlist_del_init(&item->head);
+ ht->fill--;
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_remove_item);
+
+void drm_ht_remove(struct drm_open_hash *ht)
+{
+ if (ht->table) {
+ if (ht->use_vmalloc)
+ vfree(ht->table);
+ else
+ kfree(ht->table);
+ ht->table = NULL;
+ }
+}
+EXPORT_SYMBOL(drm_ht_remove);
--- /dev/null
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_minor *minor = node->minor;
+ struct drm_device *dev = minor->dev;
+ struct drm_master *master = minor->master;
+
+ if (!master)
+ return 0;
+
+ if (master->unique) {
+ seq_printf(m, "%s %s %s\n",
+ dev->driver->pci_driver.name,
+ pci_name(dev->pdev), master->unique);
+ } else {
+ seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+ pci_name(dev->pdev));
+ }
+
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+ _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+ const char *type;
+ int i;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "slot offset size type flags address mtrr\n\n");
+ i = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ map = r_list->map;
+ if (!map)
+ continue;
+ if (map->type < 0 || map->type > 5)
+ type = "??";
+ else
+ type = types[map->type];
+
+ seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ (unsigned long long)map->offset,
+ map->size, type, map->flags,
+ (unsigned long) r_list->user_token);
+ if (map->mtrr < 0)
+ seq_printf(m, "none\n");
+ else
+ seq_printf(m, "%4d\n", map->mtrr);
+ i++;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../queues" is read.
+ */
+int drm_queues_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int i;
+ struct drm_queue *q;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, " ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
+ for (i = 0; i < dev->queue_count; i++) {
+ q = dev->queuelist[i];
+ atomic_inc(&q->use_count);
+ seq_printf(m, "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count),
+ atomic_read(&q->block_read) ? 'r' : '-',
+ atomic_read(&q->block_write) ? 'w' : '-',
+ waitqueue_active(&q->read_queue) ? 'r' : '-',
+ waitqueue_active(&q->write_queue) ? 'w' : '-',
+ waitqueue_active(&q->flush_queue) ? 'f' : '-',
+ DRM_BUFCOUNT(&q->waitlist));
+ atomic_dec(&q->use_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_device_dma *dma;
+ int i, seg_pages;
+
+ mutex_lock(&dev->struct_mutex);
+ dma = dev->dma;
+ if (!dma) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ seq_printf(m, " o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count) {
+ seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+ seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i].freelist.count),
+ dma->bufs[i].seg_count,
+ seg_pages,
+ seg_pages * PAGE_SIZE / 1024);
+ }
+ }
+ seq_printf(m, "\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i % 32))
+ seq_printf(m, "\n");
+ seq_printf(m, " %d", dma->buflist[i]->list);
+ }
+ seq_printf(m, "\n");
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int crtc;
+
+ mutex_lock(&dev->struct_mutex);
+ for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+ seq_printf(m, "CRTC %d enable: %d\n",
+ crtc, atomic_read(&dev->vblank_refcount[crtc]));
+ seq_printf(m, "CRTC %d counter: %d\n",
+ crtc, drm_vblank_count(dev, crtc));
+ seq_printf(m, "CRTC %d last wait: %d\n",
+ crtc, dev->last_vblank_wait[crtc]);
+ seq_printf(m, "CRTC %d in modeset: %d\n",
+ crtc, dev->vblank_inmodeset[crtc]);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *priv;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "a dev pid uid magic ioctls\n\n");
+ list_for_each_entry(priv, &dev->filelist, lhead) {
+ seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor->index,
+ priv->pid,
+ priv->uid, priv->magic, priv->ioctl_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+
+int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+ struct seq_file *m = data;
+
+ seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ atomic_read(&obj->handlecount.refcount),
+ atomic_read(&obj->refcount.refcount));
+ return 0;
+}
+
+int drm_gem_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, " name size handles refcount\n");
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ return 0;
+}
+
+int drm_gem_object_info(struct seq_file *m, void* data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
+ seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
+ seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
+ seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
+ seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
+ seq_printf(m, "%d gtt total\n", dev->gtt_total);
+ return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_vma_entry *pt;
+ struct vm_area_struct *vma;
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08llx\n",
+ atomic_read(&dev->vma_count),
+ high_memory, (u64)virt_to_phys(high_memory));
+
+ list_for_each_entry(pt, &dev->vmalist, head) {
+ vma = pt->vma;
+ if (!vma)
+ continue;
+ seq_printf(m,
+ "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
+ pt->pid, vma->vm_start, vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ vma->vm_pgoff);
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+ seq_printf(m, "\n");
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+#endif
+
--- /dev/null
+/**
+ * \file drm_ioctl.c
+ * IOCTL processing for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#include "linux/pci.h"
+
+/**
+ * Get the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from drm_device::unique into user space.
+ */
+int drm_getunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+
+ if (u->unique_len >= master->unique_len) {
+ if (copy_to_user(u->unique, master->unique, master->unique_len))
+ return -EFAULT;
+ }
+ u->unique_len = master->unique_len;
+
+ return 0;
+}
+
+/**
+ * Set the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from userspace into drm_device::unique, and verifies that
+ * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated
+ * in interface version 1.1 and will return EBUSY when setversion has requested
+ * version 1.1 or greater.
+ */
+int drm_setunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+ int domain, bus, slot, func, ret;
+
+ if (master->unique_len || master->unique)
+ return -EBUSY;
+
+ if (!u->unique_len || u->unique_len > 1024)
+ return -EINVAL;
+
+ master->unique_len = u->unique_len;
+ master->unique_size = u->unique_len + 1;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (!master->unique)
+ return -ENOMEM;
+ if (copy_from_user(master->unique, u->unique, master->unique_len))
+ return -EFAULT;
+
+ master->unique[master->unique_len] = '\0';
+
+ dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
+ strlen(master->unique) + 2, GFP_KERNEL);
+ if (!dev->devname)
+ return -ENOMEM;
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+
+ /* Return error if the busid submitted doesn't match the device's actual
+ * busid.
+ */
+ ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
+ if (ret != 3)
+ return -EINVAL;
+ domain = bus >> 8;
+ bus &= 0xff;
+
+ if ((domain != drm_get_pci_domain(dev)) ||
+ (bus != dev->pdev->bus->number) ||
+ (slot != PCI_SLOT(dev->pdev->devfn)) ||
+ (func != PCI_FUNC(dev->pdev->devfn)))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ int len;
+
+ if (master->unique != NULL)
+ return -EBUSY;
+
+ master->unique_len = 40;
+ master->unique_size = master->unique_len;
+ master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+ if (master->unique == NULL)
+ return -ENOMEM;
+
+ len = snprintf(master->unique, master->unique_len, "pci:%04x:%02x:%02x.%d",
+ drm_get_pci_domain(dev),
+ dev->pdev->bus->number,
+ PCI_SLOT(dev->pdev->devfn),
+ PCI_FUNC(dev->pdev->devfn));
+ if (len >= master->unique_len)
+ DRM_ERROR("buffer overflow");
+ else
+ master->unique_len = len;
+
+ dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
+ master->unique_len + 2, GFP_KERNEL);
+ if (dev->devname == NULL)
+ return -ENOMEM;
+
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ master->unique);
+
+ return 0;
+}
+
+/**
+ * Get a mapping information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_map structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the mapping with the specified offset and copies its information
+ * into userspace
+ */
+int drm_getmap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ idx = map->offset;
+
+ mutex_lock(&dev->struct_mutex);
+ if (idx < 0) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist) {
+ if (i == idx) {
+ r_list = list_entry(list, struct drm_map_list, head);
+ break;
+ }
+ i++;
+ }
+ if (!r_list || !r_list->map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ map->offset = r_list->map->offset;
+ map->size = r_list->map->size;
+ map->type = r_list->map->type;
+ map->flags = r_list->map->flags;
+ map->handle = (void *)(unsigned long) r_list->user_token;
+ map->mtrr = r_list->map->mtrr;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Get client information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_client structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the client with the specified index and copies its information
+ * into userspace
+ */
+int drm_getclient(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_client *client = data;
+ struct drm_file *pt;
+ int idx;
+ int i;
+
+ idx = client->idx;
+ mutex_lock(&dev->struct_mutex);
+
+ i = 0;
+ list_for_each_entry(pt, &dev->filelist, lhead) {
+ if (i++ >= idx) {
+ client->auth = pt->authenticated;
+ client->pid = pt->pid;
+ client->uid = pt->uid;
+ client->magic = pt->magic;
+ client->iocs = pt->ioctl_count;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return -EINVAL;
+}
+
+/**
+ * Get statistics information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_stats structure.
+ *
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getstats(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_stats *stats = data;
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+
+ mutex_lock(&dev->struct_mutex);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats->data[i].value =
+ (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
+ else
+ stats->data[i].value = atomic_read(&dev->counts[i]);
+ stats->data[i].type = dev->types[i];
+ }
+
+ stats->count = dev->counters;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Setversion ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Sets the requested interface version
+ */
+int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_set_version *sv = data;
+ int if_version, retcode = 0;
+
+ if (sv->drm_di_major != -1) {
+ if (sv->drm_di_major != DRM_IF_MAJOR ||
+ sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ if_version = DRM_IF_VERSION(sv->drm_di_major,
+ sv->drm_di_minor);
+ dev->if_version = max(if_version, dev->if_version);
+ if (sv->drm_di_minor >= 1) {
+ /*
+ * Version 1.1 includes tying of DRM to specific device
+ */
+ drm_set_busid(dev, file_priv);
+ }
+ }
+
+ if (sv->drm_dd_major != -1) {
+ if (sv->drm_dd_major != dev->driver->major ||
+ sv->drm_dd_minor < 0 || sv->drm_dd_minor >
+ dev->driver->minor) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ if (dev->driver->set_version)
+ dev->driver->set_version(dev, sv);
+ }
+
+done:
+ sv->drm_di_major = DRM_IF_MAJOR;
+ sv->drm_di_minor = DRM_IF_MINOR;
+ sv->drm_dd_major = dev->driver->major;
+ sv->drm_dd_minor = dev->driver->minor;
+
+ return retcode;
+}
+
+/** No-op ioctl. */
+int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+ return 0;
+}
--- /dev/null
+/**
+ * \file drm_irq.c
+ * IRQ support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+#include <linux/interrupt.h> /* For task queue support */
+
+#include <linux/vgaarb.h>
+/**
+ * Get interrupt from bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_irq_busid structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Finds the PCI device with the specified bus id and gets its IRQ number.
+ * This IOCTL is deprecated, and will now return EINVAL for any busid not equal
+ * to that of the device that this DRM instance attached to.
+ */
+int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_irq_busid *p = data;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
+ (p->busnum & 0xff) != dev->pdev->bus->number ||
+ p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
+ return -EINVAL;
+
+ p->irq = dev->pdev->irq;
+
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
+ p->irq);
+
+ return 0;
+}
+
+static void vblank_disable_fn(unsigned long arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ unsigned long irqflags;
+ int i;
+
+ if (!dev->vblank_disable_allowed)
+ return;
+
+ for (i = 0; i < dev->num_crtcs; i++) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
+ dev->vblank_enabled[i]) {
+ DRM_DEBUG("disabling vblank on crtc %d\n", i);
+ dev->last_vblank[i] =
+ dev->driver->get_vblank_counter(dev, i);
+ dev->driver->disable_vblank(dev, i);
+ dev->vblank_enabled[i] = 0;
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ }
+}
+
+void drm_vblank_cleanup(struct drm_device *dev)
+{
+ /* Bail if the driver didn't call drm_vblank_init() */
+ if (dev->num_crtcs == 0)
+ return;
+
+ del_timer(&dev->vblank_disable_timer);
+
+ vblank_disable_fn((unsigned long)dev);
+
+ kfree(dev->vbl_queue);
+ kfree(dev->_vblank_count);
+ kfree(dev->vblank_refcount);
+ kfree(dev->vblank_enabled);
+ kfree(dev->last_vblank);
+ kfree(dev->last_vblank_wait);
+ kfree(dev->vblank_inmodeset);
+
+ dev->num_crtcs = 0;
+}
+
+int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+{
+ int i, ret = -ENOMEM;
+
+ setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
+ (unsigned long)dev);
+ spin_lock_init(&dev->vbl_lock);
+ dev->num_crtcs = num_crtcs;
+
+ dev->vbl_queue = kmalloc(sizeof(wait_queue_head_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vbl_queue)
+ goto err;
+
+ dev->_vblank_count = kmalloc(sizeof(atomic_t) * num_crtcs, GFP_KERNEL);
+ if (!dev->_vblank_count)
+ goto err;
+
+ dev->vblank_refcount = kmalloc(sizeof(atomic_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vblank_refcount)
+ goto err;
+
+ dev->vblank_enabled = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_enabled)
+ goto err;
+
+ dev->last_vblank = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank)
+ goto err;
+
+ dev->last_vblank_wait = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank_wait)
+ goto err;
+
+ dev->vblank_inmodeset = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_inmodeset)
+ goto err;
+
+ /* Zero per-crtc vblank stuff */
+ for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
+ atomic_set(&dev->_vblank_count[i], 0);
+ atomic_set(&dev->vblank_refcount[i], 0);
+ }
+
+ dev->vblank_disable_allowed = 0;
+
+ return 0;
+
+err:
+ drm_vblank_cleanup(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_init);
+
+static void drm_irq_vgaarb_nokms(void *cookie, bool state)
+{
+ struct drm_device *dev = cookie;
+
+ if (dev->driver->vgaarb_irq) {
+ dev->driver->vgaarb_irq(dev, state);
+ return;
+ }
+
+ if (!dev->irq_enabled)
+ return;
+
+ if (state)
+ dev->driver->irq_uninstall(dev);
+ else {
+ dev->driver->irq_preinstall(dev);
+ dev->driver->irq_postinstall(dev);
+ }
+}
+
+/**
+ * Install IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Initializes the IRQ related data. Installs the handler, calling the driver
+ * \c drm_driver_irq_preinstall() and \c drm_driver_irq_postinstall() functions
+ * before and after the installation.
+ */
+int drm_irq_install(struct drm_device *dev)
+{
+ int ret = 0;
+ unsigned long sh_flags = 0;
+ char *irqname;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if (dev->pdev->irq == 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Driver must have been initialized */
+ if (!dev->dev_private) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ if (dev->irq_enabled) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EBUSY;
+ }
+ dev->irq_enabled = 1;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
+
+ /* Before installing handler */
+ dev->driver->irq_preinstall(dev);
+
+ /* Install handler */
+ if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
+ sh_flags = IRQF_SHARED;
+
+ if (dev->devname)
+ irqname = dev->devname;
+ else
+ irqname = dev->driver->name;
+
+ ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
+ sh_flags, irqname, dev);
+
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);
+
+ /* After installing handler */
+ ret = dev->driver->irq_postinstall(dev);
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_irq_install);
+
+/**
+ * Uninstall the IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Calls the driver's \c drm_driver_irq_uninstall() function, and stops the irq.
+ */
+int drm_irq_uninstall(struct drm_device * dev)
+{
+ unsigned long irqflags;
+ int irq_enabled, i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ irq_enabled = dev->irq_enabled;
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+
+ /*
+ * Wake up any waiters so they don't hang.
+ */
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ for (i = 0; i < dev->num_crtcs; i++) {
+ DRM_WAKEUP(&dev->vbl_queue[i]);
+ dev->vblank_enabled[i] = 0;
+ dev->last_vblank[i] = dev->driver->get_vblank_counter(dev, i);
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (!irq_enabled)
+ return -EINVAL;
+
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
+
+ dev->driver->irq_uninstall(dev);
+
+ free_irq(dev->pdev->irq, dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_irq_uninstall);
+
+/**
+ * IRQ control ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_control structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls irq_install() or irq_uninstall() according to \p arg.
+ */
+int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_control *ctl = data;
+
+ /* if we haven't irq we fallback for compatibility reasons - this used to be a separate function in drm_dma.h */
+
+
+ switch (ctl->func) {
+ case DRM_INST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ if (dev->if_version < DRM_IF_VERSION(1, 2) &&
+ ctl->irq != dev->pdev->irq)
+ return -EINVAL;
+ return drm_irq_install(dev);
+ case DRM_UNINST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ return drm_irq_uninstall(dev);
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * drm_vblank_count - retrieve "cooked" vblank counter value
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity.
+ */
+u32 drm_vblank_count(struct drm_device *dev, int crtc)
+{
+ return atomic_read(&dev->_vblank_count[crtc]);
+}
+EXPORT_SYMBOL(drm_vblank_count);
+
+/**
+ * drm_update_vblank_count - update the master vblank counter
+ * @dev: DRM device
+ * @crtc: counter to update
+ *
+ * Call back into the driver to update the appropriate vblank counter
+ * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * update the last read value so we can deal with wraparound on the next
+ * call if necessary.
+ *
+ * Only necessary when going from off->on, to account for frames we
+ * didn't get an interrupt for.
+ *
+ * Note: caller must hold dev->vbl_lock since this reads & writes
+ * device vblank fields.
+ */
+static void drm_update_vblank_count(struct drm_device *dev, int crtc)
+{
+ u32 cur_vblank, diff;
+
+ /*
+ * Interrupts were disabled prior to this call, so deal with counter
+ * wrap if needed.
+ * NOTE! It's possible we lost a full dev->max_vblank_count events
+ * here if the register is small or we had vblank interrupts off for
+ * a long time.
+ */
+ cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
+ diff = cur_vblank - dev->last_vblank[crtc];
+ if (cur_vblank < dev->last_vblank[crtc]) {
+ diff += dev->max_vblank_count;
+
+ DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
+ crtc, dev->last_vblank[crtc], cur_vblank, diff);
+ }
+
+ DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n",
+ crtc, diff);
+
+ atomic_add(diff, &dev->_vblank_count[crtc]);
+}
+
+/**
+ * drm_vblank_get - get a reference count on vblank events
+ * @dev: DRM device
+ * @crtc: which CRTC to own
+ *
+ * Acquire a reference count on vblank events to avoid having them disabled
+ * while in use.
+ *
+ * RETURNS
+ * Zero on success, nonzero on failure.
+ */
+int drm_vblank_get(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ /* Going from 0->1 means we have to enable interrupts again */
+ if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
+ if (!dev->vblank_enabled[crtc]) {
+ ret = dev->driver->enable_vblank(dev, crtc);
+ DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n", crtc, ret);
+ if (ret)
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ else {
+ dev->vblank_enabled[crtc] = 1;
+ drm_update_vblank_count(dev, crtc);
+ }
+ }
+ } else {
+ if (!dev->vblank_enabled[crtc]) {
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ ret = -EINVAL;
+ }
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_get);
+
+/**
+ * drm_vblank_put - give up ownership of vblank events
+ * @dev: DRM device
+ * @crtc: which counter to give up
+ *
+ * Release ownership of a given vblank counter, turning off interrupts
+ * if possible.
+ */
+void drm_vblank_put(struct drm_device *dev, int crtc)
+{
+ BUG_ON (atomic_read (&dev->vblank_refcount[crtc]) == 0);
+
+ /* Last user schedules interrupt disable */
+ if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
+ mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ);
+}
+EXPORT_SYMBOL(drm_vblank_put);
+
+void drm_vblank_off(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ dev->vblank_enabled[crtc] = 0;
+ dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc);
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+}
+EXPORT_SYMBOL(drm_vblank_off);
+
+/**
+ * drm_vblank_pre_modeset - account for vblanks across mode sets
+ * @dev: DRM device
+ * @crtc: CRTC in question
+ * @post: post or pre mode set?
+ *
+ * Account for vblank events across mode setting events, which will likely
+ * reset the hardware frame counter.
+ */
+void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
+{
+ /*
+ * To avoid all the problems that might happen if interrupts
+ * were enabled/disabled around or between these calls, we just
+ * have the kernel take a reference on the CRTC (just once though
+ * to avoid corrupting the count if multiple, mismatch calls occur),
+ * so that interrupts remain enabled in the interim.
+ */
+ if (!dev->vblank_inmodeset[crtc]) {
+ dev->vblank_inmodeset[crtc] = 0x1;
+ if (drm_vblank_get(dev, crtc) == 0)
+ dev->vblank_inmodeset[crtc] |= 0x2;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_pre_modeset);
+
+void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ if (dev->vblank_inmodeset[crtc]) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ dev->vblank_disable_allowed = 1;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (dev->vblank_inmodeset[crtc] & 0x2)
+ drm_vblank_put(dev, crtc);
+
+ dev->vblank_inmodeset[crtc] = 0;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_post_modeset);
+
+/**
+ * drm_modeset_ctl - handle vblank event counter changes across mode switch
+ * @DRM_IOCTL_ARGS: standard ioctl arguments
+ *
+ * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
+ * ioctls around modesetting so that any lost vblank events are accounted for.
+ *
+ * Generally the counter will reset across mode sets. If interrupts are
+ * enabled around this call, we don't have to do anything since the counter
+ * will have already been incremented.
+ */
+int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_modeset_ctl *modeset = data;
+ int crtc, ret = 0;
+
+ /* If drm_vblank_init() hasn't been called yet, just no-op */
+ if (!dev->num_crtcs)
+ goto out;
+
+ crtc = modeset->crtc;
+ if (crtc >= dev->num_crtcs) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (modeset->cmd) {
+ case _DRM_PRE_MODESET:
+ drm_vblank_pre_modeset(dev, crtc);
+ break;
+ case _DRM_POST_MODESET:
+ drm_vblank_post_modeset(dev, crtc);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ return ret;
+}
+
+static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
+ union drm_wait_vblank *vblwait,
+ struct drm_file *file_priv)
+{
+ struct drm_pending_vblank_event *e;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL)
+ return -ENOMEM;
+
+ e->pipe = pipe;
+ e->event.base.type = DRM_EVENT_VBLANK;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = vblwait->request.signal;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+ do_gettimeofday(&now);
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ return -ENOMEM;
+ }
+
+ file_priv->event_space -= sizeof e->event;
+ seq = drm_vblank_count(dev, pipe);
+ if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1 << 23)) {
+ vblwait->request.sequence = seq + 1;
+ vblwait->reply.sequence = vblwait->request.sequence;
+ }
+
+ DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
+ vblwait->request.sequence, seq, pipe);
+
+ e->event.sequence = vblwait->request.sequence;
+ if ((seq - vblwait->request.sequence) <= (1 << 23)) {
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_add_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ } else {
+ list_add_tail(&e->base.link, &dev->vblank_event_list);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return 0;
+}
+
+/**
+ * Wait for VBLANK.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param data user argument, pointing to a drm_wait_vblank structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * This function enables the vblank interrupt on the pipe requested, then
+ * sleeps waiting for the requested sequence number to occur, and drops
+ * the vblank interrupt refcount afterwards. (vblank irq disable follows that
+ * after a timeout with no further vblank waits scheduled).
+ */
+int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ union drm_wait_vblank *vblwait = data;
+ int ret = 0;
+ unsigned int flags, seq, crtc;
+
+ if ((!dev->pdev->irq) || (!dev->irq_enabled))
+ return -EINVAL;
+
+ if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
+ return -EINVAL;
+
+ if (vblwait->request.type &
+ ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) {
+ DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
+ vblwait->request.type,
+ (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK));
+ return -EINVAL;
+ }
+
+ flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
+ crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
+
+ if (crtc >= dev->num_crtcs)
+ return -EINVAL;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret) {
+ DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
+ return ret;
+ }
+ seq = drm_vblank_count(dev, crtc);
+
+ switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
+ case _DRM_VBLANK_RELATIVE:
+ vblwait->request.sequence += seq;
+ vblwait->request.type &= ~_DRM_VBLANK_RELATIVE;
+ case _DRM_VBLANK_ABSOLUTE:
+ break;
+ default:
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (flags & _DRM_VBLANK_EVENT)
+ return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
+
+ if ((flags & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1<<23)) {
+ vblwait->request.sequence = seq + 1;
+ }
+
+ DRM_DEBUG("waiting on vblank count %d, crtc %d\n",
+ vblwait->request.sequence, crtc);
+ dev->last_vblank_wait[crtc] = vblwait->request.sequence;
+ DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
+ (((drm_vblank_count(dev, crtc) -
+ vblwait->request.sequence) <= (1 << 23)) ||
+ !dev->irq_enabled));
+
+ if (ret != -EINTR) {
+ struct timeval now;
+
+ do_gettimeofday(&now);
+
+ vblwait->reply.tval_sec = now.tv_sec;
+ vblwait->reply.tval_usec = now.tv_usec;
+ vblwait->reply.sequence = drm_vblank_count(dev, crtc);
+ DRM_DEBUG("returning %d to client\n",
+ vblwait->reply.sequence);
+ } else {
+ DRM_DEBUG("vblank wait interrupted by signal\n");
+ }
+
+done:
+ drm_vblank_put(dev, crtc);
+ return ret;
+}
+
+void drm_handle_vblank_events(struct drm_device *dev, int crtc)
+{
+ struct drm_pending_vblank_event *e, *t;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+
+ do_gettimeofday(&now);
+ seq = drm_vblank_count(dev, crtc);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
+ if (e->pipe != crtc)
+ continue;
+ if ((seq - e->event.sequence) > (1<<23))
+ continue;
+
+ DRM_DEBUG("vblank event on %d, current %d\n",
+ e->event.sequence, seq);
+
+ e->event.sequence = seq;
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * drm_handle_vblank - handle a vblank event
+ * @dev: DRM device
+ * @crtc: where this event occurred
+ *
+ * Drivers should call this routine in their vblank interrupt handlers to
+ * update the vblank counter and send any signals that may be pending.
+ */
+void drm_handle_vblank(struct drm_device *dev, int crtc)
+{
+ if (!dev->num_crtcs)
+ return;
+
+ atomic_inc(&dev->_vblank_count[crtc]);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ drm_handle_vblank_events(dev, crtc);
+}
+EXPORT_SYMBOL(drm_handle_vblank);
--- /dev/null
+/**
+ * \file drm_lock.c
+ * IOCTLs for locking
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+static int drm_notifier(void *priv);
+
+/**
+ * Lock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Add the current task to the lock wait queue, and attempt to take to lock.
+ */
+int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ DECLARE_WAITQUEUE(entry, current);
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+ int ret = 0;
+
+ ++file_priv->lock_count;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock->context, task_pid_nr(current),
+ master->lock.hw_lock->lock, lock->flags);
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE))
+ if (lock->context < 0)
+ return -EINVAL;
+
+ add_wait_queue(&master->lock.lock_queue, &entry);
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters++;
+ spin_unlock_bh(&master->lock.spinlock);
+
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ if (!master->lock.hw_lock) {
+ /* Device has been unregistered */
+ send_sig(SIGTERM, current, 0);
+ ret = -EINTR;
+ break;
+ }
+ if (drm_lock_take(&master->lock, lock->context)) {
+ master->lock.file_priv = file_priv;
+ master->lock.lock_time = jiffies;
+ atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ schedule();
+ if (signal_pending(current)) {
+ ret = -EINTR;
+ break;
+ }
+ }
+ spin_lock_bh(&master->lock.spinlock);
+ master->lock.user_waiters--;
+ spin_unlock_bh(&master->lock.spinlock);
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&master->lock.lock_queue, &entry);
+
+ DRM_DEBUG("%d %s\n", lock->context,
+ ret ? "interrupted" : "has lock");
+ if (ret) return ret;
+
+ /* don't set the block all signals on the master process for now
+ * really probably not the correct answer but lets us debug xkb
+ * xserver for now */
+ if (!file_priv->is_master) {
+ sigemptyset(&dev->sigmask);
+ sigaddset(&dev->sigmask, SIGSTOP);
+ sigaddset(&dev->sigmask, SIGTSTP);
+ sigaddset(&dev->sigmask, SIGTTIN);
+ sigaddset(&dev->sigmask, SIGTTOU);
+ dev->sigdata.context = lock->context;
+ dev->sigdata.lock = master->lock.hw_lock;
+ block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
+ }
+
+ if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY))
+ dev->driver->dma_ready(dev);
+
+ if (dev->driver->dma_quiescent && (lock->flags & _DRM_LOCK_QUIESCENT))
+ {
+ if (dev->driver->dma_quiescent(dev)) {
+ DRM_DEBUG("%d waiting for DMA quiescent\n",
+ lock->context);
+ return -EBUSY;
+ }
+ }
+
+ if (dev->driver->kernel_context_switch &&
+ dev->last_context != lock->context) {
+ dev->driver->kernel_context_switch(dev, dev->last_context,
+ lock->context);
+ }
+
+ return 0;
+}
+
+/**
+ * Unlock ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Transfer and free the lock.
+ */
+int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_lock *lock = data;
+ struct drm_master *master = file_priv->master;
+
+ if (lock->context == DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("Process %d using kernel context %d\n",
+ task_pid_nr(current), lock->context);
+ return -EINVAL;
+ }
+
+ atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
+
+ /* kernel_context_switch isn't used by any of the x86 drm
+ * modules but is required by the Sparc driver.
+ */
+ if (dev->driver->kernel_context_switch_unlock)
+ dev->driver->kernel_context_switch_unlock(dev);
+ else {
+ if (drm_lock_free(&master->lock, lock->context)) {
+ /* FIXME: Should really bail out here. */
+ }
+ }
+
+ unblock_all_signals();
+ return 0;
+}
+
+/**
+ * Take the heavyweight lock.
+ *
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return one if the lock is held, or zero otherwise.
+ *
+ * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+int drm_lock_take(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ do {
+ old = *lock;
+ if (old & _DRM_LOCK_HELD)
+ new = old | _DRM_LOCK_CONT;
+ else {
+ new = context | _DRM_LOCK_HELD |
+ ((lock_data->user_waiters + lock_data->kernel_waiters > 1) ?
+ _DRM_LOCK_CONT : 0);
+ }
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ spin_unlock_bh(&lock_data->spinlock);
+
+ if (_DRM_LOCKING_CONTEXT(old) == context) {
+ if (old & _DRM_LOCK_HELD) {
+ if (context != DRM_KERNEL_CONTEXT) {
+ DRM_ERROR("%d holds heavyweight lock\n",
+ context);
+ }
+ return 0;
+ }
+ }
+
+ if ((_DRM_LOCKING_CONTEXT(new)) == context && (new & _DRM_LOCK_HELD)) {
+ /* Have lock */
+ return 1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_lock_take);
+
+/**
+ * This takes a lock forcibly and hands it to context. Should ONLY be used
+ * inside *_unlock to give lock to kernel before calling *_dma_schedule.
+ *
+ * \param dev DRM device.
+ * \param lock lock pointer.
+ * \param context locking context.
+ * \return always one.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as held by the given context, via the \p cmpxchg instruction.
+ */
+static int drm_lock_transfer(struct drm_lock_data *lock_data,
+ unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ lock_data->file_priv = NULL;
+ do {
+ old = *lock;
+ new = context | _DRM_LOCK_HELD;
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+ return 1;
+}
+
+/**
+ * Free lock.
+ *
+ * \param dev DRM device.
+ * \param lock lock.
+ * \param context context.
+ *
+ * Resets the lock file pointer.
+ * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task
+ * waiting on the lock queue.
+ */
+int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context)
+{
+ unsigned int old, new, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (lock_data->kernel_waiters != 0) {
+ drm_lock_transfer(lock_data, 0);
+ lock_data->idle_has_lock = 1;
+ spin_unlock_bh(&lock_data->spinlock);
+ return 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+
+ do {
+ old = *lock;
+ new = _DRM_LOCKING_CONTEXT(old);
+ prev = cmpxchg(lock, old, new);
+ } while (prev != old);
+
+ if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
+ DRM_ERROR("%d freed heavyweight lock held by %d\n",
+ context, _DRM_LOCKING_CONTEXT(old));
+ return 1;
+ }
+ wake_up_interruptible(&lock_data->lock_queue);
+ return 0;
+}
+EXPORT_SYMBOL(drm_lock_free);
+
+/**
+ * If we get here, it means that the process has called DRM_IOCTL_LOCK
+ * without calling DRM_IOCTL_UNLOCK.
+ *
+ * If the lock is not held, then let the signal proceed as usual. If the lock
+ * is held, then set the contended flag and keep the signal blocked.
+ *
+ * \param priv pointer to a drm_sigdata structure.
+ * \return one if the signal should be delivered normally, or zero if the
+ * signal should be blocked.
+ */
+static int drm_notifier(void *priv)
+{
+ struct drm_sigdata *s = (struct drm_sigdata *) priv;
+ unsigned int old, new, prev;
+
+ /* Allow signal delivery if lock isn't held */
+ if (!s->lock || !_DRM_LOCK_IS_HELD(s->lock->lock)
+ || _DRM_LOCKING_CONTEXT(s->lock->lock) != s->context)
+ return 1;
+
+ /* Otherwise, set flag to force call to
+ drmUnlock */
+ do {
+ old = s->lock->lock;
+ new = old | _DRM_LOCK_CONT;
+ prev = cmpxchg(&s->lock->lock, old, new);
+ } while (prev != old);
+ return 0;
+}
+
+/**
+ * This function returns immediately and takes the hw lock
+ * with the kernel context if it is free, otherwise it gets the highest priority when and if
+ * it is eventually released.
+ *
+ * This guarantees that the kernel will _eventually_ have the lock _unless_ it is held
+ * by a blocked process. (In the latter case an explicit wait for the hardware lock would cause
+ * a deadlock, which is why the "idlelock" was invented).
+ *
+ * This should be sufficient to wait for GPU idle without
+ * having to worry about starvation.
+ */
+
+void drm_idlelock_take(struct drm_lock_data *lock_data)
+{
+ int ret = 0;
+
+ spin_lock_bh(&lock_data->spinlock);
+ lock_data->kernel_waiters++;
+ if (!lock_data->idle_has_lock) {
+
+ spin_unlock_bh(&lock_data->spinlock);
+ ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT);
+ spin_lock_bh(&lock_data->spinlock);
+
+ if (ret == 1)
+ lock_data->idle_has_lock = 1;
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+EXPORT_SYMBOL(drm_idlelock_take);
+
+void drm_idlelock_release(struct drm_lock_data *lock_data)
+{
+ unsigned int old, prev;
+ volatile unsigned int *lock = &lock_data->hw_lock->lock;
+
+ spin_lock_bh(&lock_data->spinlock);
+ if (--lock_data->kernel_waiters == 0) {
+ if (lock_data->idle_has_lock) {
+ do {
+ old = *lock;
+ prev = cmpxchg(lock, old, DRM_KERNEL_CONTEXT);
+ } while (prev != old);
+ wake_up_interruptible(&lock_data->lock_queue);
+ lock_data->idle_has_lock = 0;
+ }
+ }
+ spin_unlock_bh(&lock_data->spinlock);
+}
+EXPORT_SYMBOL(drm_idlelock_release);
+
+
+int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ return (file_priv->lock_count && master->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) &&
+ master->lock.file_priv == file_priv);
+}
+
+EXPORT_SYMBOL(drm_i_have_hw_lock);
--- /dev/null
+/**
+ * \file drm_memory.c
+ * Memory management wrappers for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/highmem.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/%dev%/mem" is read.
+ *
+ * \param buf output buffer.
+ * \param start start of output data.
+ * \param offset requested start offset.
+ * \param len requested number of bytes.
+ * \param eof whether there is no more data to return.
+ * \param data private data.
+ * \return number of written bytes.
+ *
+ * No-op.
+ */
+int drm_mem_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data)
+{
+ return 0;
+}
+
+#if __OS_HAS_AGP
+static void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ unsigned long i, num_pages =
+ PAGE_ALIGN(size) / PAGE_SIZE;
+ struct drm_agp_mem *agpmem;
+ struct page **page_map;
+ struct page **phys_page_map;
+ void *addr;
+
+ size = PAGE_ALIGN(size);
+
+#ifdef __alpha__
+ offset -= dev->hose->mem_space->start;
+#endif
+
+ list_for_each_entry(agpmem, &dev->agp->memory, head)
+ if (agpmem->bound <= offset
+ && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
+ (offset + size))
+ break;
+ if (!agpmem)
+ return NULL;
+
+ /*
+ * OK, we're mapping AGP space on a chipset/platform on which memory accesses by
+ * the CPU do not get remapped by the GART. We fix this by using the kernel's
+ * page-table instead (that's probably faster anyhow...).
+ */
+ /* note: use vmalloc() because num_pages could be large... */
+ page_map = vmalloc(num_pages * sizeof(struct page *));
+ if (!page_map)
+ return NULL;
+
+ phys_page_map = (agpmem->memory->pages + (offset - agpmem->bound) / PAGE_SIZE);
+ for (i = 0; i < num_pages; ++i)
+ page_map[i] = phys_page_map[i];
+ addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
+ vfree(page_map);
+
+ return addr;
+}
+
+/** Wrapper around agp_allocate_memory() */
+DRM_AGP_MEM *drm_alloc_agp(struct drm_device * dev, int pages, u32 type)
+{
+ return drm_agp_allocate_memory(dev->agp->bridge, pages, type);
+}
+
+/** Wrapper around agp_free_memory() */
+int drm_free_agp(DRM_AGP_MEM * handle, int pages)
+{
+ return drm_agp_free_memory(handle) ? 0 : -EINVAL;
+}
+EXPORT_SYMBOL(drm_free_agp);
+
+/** Wrapper around agp_bind_memory() */
+int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
+{
+ return drm_agp_bind_memory(handle, start);
+}
+
+/** Wrapper around agp_unbind_memory() */
+int drm_unbind_agp(DRM_AGP_MEM * handle)
+{
+ return drm_agp_unbind_memory(handle);
+}
+EXPORT_SYMBOL(drm_unbind_agp);
+
+#else /* __OS_HAS_AGP */
+static inline void *agp_remap(unsigned long offset, unsigned long size,
+ struct drm_device * dev)
+{
+ return NULL;
+}
+
+#endif /* agp */
+
+void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap);
+
+void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap_wc(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap_wc);
+
+void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
+{
+ if (!map->handle || !map->size)
+ return;
+
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ vunmap(map->handle);
+ else
+ iounmap(map->handle);
+}
+EXPORT_SYMBOL(drm_core_ioremapfree);
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+
+/*
+ * Generic simple memory manager implementation. Intended to be used as a base
+ * class implementation for more advanced memory managers.
+ *
+ * Note that the algorithm used is quite simple and there might be substantial
+ * performance gains if a smarter free list is implemented. Currently it is just an
+ * unordered stack of free regions. This could easily be improved if an RB-tree
+ * is used instead. At least if we expect heavy fragmentation.
+ *
+ * Aligned allocations can also see improvement.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_mm.h"
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+
+#define MM_UNUSED_TARGET 4
+
+unsigned long drm_mm_tail_space(struct drm_mm *mm)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free)
+ return 0;
+
+ return entry->size;
+}
+
+int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free)
+ return -ENOMEM;
+
+ if (entry->size <= size)
+ return -ENOMEM;
+
+ entry->size -= size;
+ return 0;
+}
+
+static struct drm_mm_node *drm_mm_kmalloc(struct drm_mm *mm, int atomic)
+{
+ struct drm_mm_node *child;
+
+ if (atomic)
+ child = kmalloc(sizeof(*child), GFP_ATOMIC);
+ else
+ child = kmalloc(sizeof(*child), GFP_KERNEL);
+
+ if (unlikely(child == NULL)) {
+ spin_lock(&mm->unused_lock);
+ if (list_empty(&mm->unused_nodes))
+ child = NULL;
+ else {
+ child =
+ list_entry(mm->unused_nodes.next,
+ struct drm_mm_node, fl_entry);
+ list_del(&child->fl_entry);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+ }
+ return child;
+}
+
+/* drm_mm_pre_get() - pre allocate drm_mm_node structure
+ * drm_mm: memory manager struct we are pre-allocating for
+ *
+ * Returns 0 on success or -ENOMEM if allocation fails.
+ */
+int drm_mm_pre_get(struct drm_mm *mm)
+{
+ struct drm_mm_node *node;
+
+ spin_lock(&mm->unused_lock);
+ while (mm->num_unused < MM_UNUSED_TARGET) {
+ spin_unlock(&mm->unused_lock);
+ node = kmalloc(sizeof(*node), GFP_KERNEL);
+ spin_lock(&mm->unused_lock);
+
+ if (unlikely(node == NULL)) {
+ int ret = (mm->num_unused < 2) ? -ENOMEM : 0;
+ spin_unlock(&mm->unused_lock);
+ return ret;
+ }
+ ++mm->num_unused;
+ list_add_tail(&node->fl_entry, &mm->unused_nodes);
+ }
+ spin_unlock(&mm->unused_lock);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_pre_get);
+
+static int drm_mm_create_tail_node(struct drm_mm *mm,
+ unsigned long start,
+ unsigned long size, int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(mm, atomic);
+ if (unlikely(child == NULL))
+ return -ENOMEM;
+
+ child->free = 1;
+ child->size = size;
+ child->start = start;
+ child->mm = mm;
+
+ list_add_tail(&child->ml_entry, &mm->ml_entry);
+ list_add_tail(&child->fl_entry, &mm->fl_entry);
+
+ return 0;
+}
+
+int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size, int atomic)
+{
+ struct list_head *tail_node;
+ struct drm_mm_node *entry;
+
+ tail_node = mm->ml_entry.prev;
+ entry = list_entry(tail_node, struct drm_mm_node, ml_entry);
+ if (!entry->free) {
+ return drm_mm_create_tail_node(mm, entry->start + entry->size,
+ size, atomic);
+ }
+ entry->size += size;
+ return 0;
+}
+
+static struct drm_mm_node *drm_mm_split_at_start(struct drm_mm_node *parent,
+ unsigned long size,
+ int atomic)
+{
+ struct drm_mm_node *child;
+
+ child = drm_mm_kmalloc(parent->mm, atomic);
+ if (unlikely(child == NULL))
+ return NULL;
+
+ INIT_LIST_HEAD(&child->fl_entry);
+
+ child->free = 0;
+ child->size = size;
+ child->start = parent->start;
+ child->mm = parent->mm;
+
+ list_add_tail(&child->ml_entry, &parent->ml_entry);
+ INIT_LIST_HEAD(&child->fl_entry);
+
+ parent->size -= size;
+ parent->start += size;
+ return child;
+}
+
+
+struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ int atomic)
+{
+
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+
+ if (alignment)
+ tmp = node->start % alignment;
+
+ if (tmp) {
+ align_splitoff =
+ drm_mm_split_at_start(node, alignment - tmp, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->fl_entry);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_generic);
+
+struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int atomic)
+{
+ struct drm_mm_node *align_splitoff = NULL;
+ unsigned tmp = 0;
+ unsigned wasted = 0;
+
+ if (node->start < start)
+ wasted += start - node->start;
+ if (alignment)
+ tmp = ((node->start + wasted) % alignment);
+
+ if (tmp)
+ wasted += alignment - tmp;
+ if (wasted) {
+ align_splitoff = drm_mm_split_at_start(node, wasted, atomic);
+ if (unlikely(align_splitoff == NULL))
+ return NULL;
+ }
+
+ if (node->size == size) {
+ list_del_init(&node->fl_entry);
+ node->free = 0;
+ } else {
+ node = drm_mm_split_at_start(node, size, atomic);
+ }
+
+ if (align_splitoff)
+ drm_mm_put_block(align_splitoff);
+
+ return node;
+}
+EXPORT_SYMBOL(drm_mm_get_block_range_generic);
+
+/*
+ * Put a block. Merge with the previous and / or next block if they are free.
+ * Otherwise add to the free stack.
+ */
+
+void drm_mm_put_block(struct drm_mm_node *cur)
+{
+
+ struct drm_mm *mm = cur->mm;
+ struct list_head *cur_head = &cur->ml_entry;
+ struct list_head *root_head = &mm->ml_entry;
+ struct drm_mm_node *prev_node = NULL;
+ struct drm_mm_node *next_node;
+
+ int merged = 0;
+
+ if (cur_head->prev != root_head) {
+ prev_node =
+ list_entry(cur_head->prev, struct drm_mm_node, ml_entry);
+ if (prev_node->free) {
+ prev_node->size += cur->size;
+ merged = 1;
+ }
+ }
+ if (cur_head->next != root_head) {
+ next_node =
+ list_entry(cur_head->next, struct drm_mm_node, ml_entry);
+ if (next_node->free) {
+ if (merged) {
+ prev_node->size += next_node->size;
+ list_del(&next_node->ml_entry);
+ list_del(&next_node->fl_entry);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&next_node->fl_entry,
+ &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(next_node);
+ spin_unlock(&mm->unused_lock);
+ } else {
+ next_node->size += cur->size;
+ next_node->start = cur->start;
+ merged = 1;
+ }
+ }
+ }
+ if (!merged) {
+ cur->free = 1;
+ list_add(&cur->fl_entry, &mm->fl_entry);
+ } else {
+ list_del(&cur->ml_entry);
+ spin_lock(&mm->unused_lock);
+ if (mm->num_unused < MM_UNUSED_TARGET) {
+ list_add(&cur->fl_entry, &mm->unused_nodes);
+ ++mm->num_unused;
+ } else
+ kfree(cur);
+ spin_unlock(&mm->unused_lock);
+ }
+}
+
+EXPORT_SYMBOL(drm_mm_put_block);
+
+struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment, int best_match)
+{
+ struct list_head *list;
+ const struct list_head *free_stack = &mm->fl_entry;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+ unsigned wasted;
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each(list, free_stack) {
+ entry = list_entry(list, struct drm_mm_node, fl_entry);
+ wasted = 0;
+
+ if (entry->size < size)
+ continue;
+
+ if (alignment) {
+ register unsigned tmp = entry->start % alignment;
+ if (tmp)
+ wasted += alignment - tmp;
+ }
+
+ if (entry->size >= size + wasted) {
+ if (!best_match)
+ return entry;
+ if (size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free);
+
+struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end,
+ int best_match)
+{
+ struct list_head *list;
+ const struct list_head *free_stack = &mm->fl_entry;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *best;
+ unsigned long best_size;
+ unsigned wasted;
+
+ best = NULL;
+ best_size = ~0UL;
+
+ list_for_each(list, free_stack) {
+ entry = list_entry(list, struct drm_mm_node, fl_entry);
+ wasted = 0;
+
+ if (entry->size < size)
+ continue;
+
+ if (entry->start > end || (entry->start+entry->size) < start)
+ continue;
+
+ if (entry->start < start)
+ wasted += start - entry->start;
+
+ if (alignment) {
+ register unsigned tmp = (entry->start + wasted) % alignment;
+ if (tmp)
+ wasted += alignment - tmp;
+ }
+
+ if (entry->size >= size + wasted) {
+ if (!best_match)
+ return entry;
+ if (size < best_size) {
+ best = entry;
+ best_size = entry->size;
+ }
+ }
+ }
+
+ return best;
+}
+EXPORT_SYMBOL(drm_mm_search_free_in_range);
+
+int drm_mm_clean(struct drm_mm * mm)
+{
+ struct list_head *head = &mm->ml_entry;
+
+ return (head->next->next == head);
+}
+EXPORT_SYMBOL(drm_mm_clean);
+
+int drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
+{
+ INIT_LIST_HEAD(&mm->ml_entry);
+ INIT_LIST_HEAD(&mm->fl_entry);
+ INIT_LIST_HEAD(&mm->unused_nodes);
+ mm->num_unused = 0;
+ spin_lock_init(&mm->unused_lock);
+
+ return drm_mm_create_tail_node(mm, start, size, 0);
+}
+EXPORT_SYMBOL(drm_mm_init);
+
+void drm_mm_takedown(struct drm_mm * mm)
+{
+ struct list_head *bnode = mm->fl_entry.next;
+ struct drm_mm_node *entry;
+ struct drm_mm_node *next;
+
+ entry = list_entry(bnode, struct drm_mm_node, fl_entry);
+
+ if (entry->ml_entry.next != &mm->ml_entry ||
+ entry->fl_entry.next != &mm->fl_entry) {
+ DRM_ERROR("Memory manager not clean. Delaying takedown\n");
+ return;
+ }
+
+ list_del(&entry->fl_entry);
+ list_del(&entry->ml_entry);
+ kfree(entry);
+
+ spin_lock(&mm->unused_lock);
+ list_for_each_entry_safe(entry, next, &mm->unused_nodes, fl_entry) {
+ list_del(&entry->fl_entry);
+ kfree(entry);
+ --mm->num_unused;
+ }
+ spin_unlock(&mm->unused_lock);
+
+ BUG_ON(mm->num_unused != 0);
+}
+EXPORT_SYMBOL(drm_mm_takedown);
+
+void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->ml_entry, ml_entry) {
+ printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8ld: %s\n",
+ prefix, entry->start, entry->start + entry->size,
+ entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ printk(KERN_DEBUG "%s total: %d, used %d free %d\n", prefix, total,
+ total_used, total_free);
+}
+EXPORT_SYMBOL(drm_mm_debug_table);
+
+#if defined(CONFIG_DEBUG_FS)
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+{
+ struct drm_mm_node *entry;
+ int total_used = 0, total_free = 0, total = 0;
+
+ list_for_each_entry(entry, &mm->ml_entry, ml_entry) {
+ seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: %s\n", entry->start, entry->start + entry->size, entry->size, entry->free ? "free" : "used");
+ total += entry->size;
+ if (entry->free)
+ total_free += entry->size;
+ else
+ total_used += entry->size;
+ }
+ seq_printf(m, "total: %d, used %d free %d\n", total, total_used, total_free);
+ return 0;
+}
+EXPORT_SYMBOL(drm_mm_dump_table);
+#endif
--- /dev/null
+/*
+ * The list_sort function is (presumably) licensed under the GPL (see the
+ * top level "COPYING" file for details).
+ *
+ * The remainder of this file is:
+ *
+ * Copyright © 1997-2003 by The XFree86 Project, Inc.
+ * Copyright © 2007 Dave Airlie
+ * Copyright © 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2005-2006 Luc Verhaegen
+ * Copyright (c) 2001, Andy Ritger aritger@nvidia.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+#include <linux/list.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+
+/**
+ * drm_mode_debug_printmodeline - debug print a mode
+ * @dev: DRM device
+ * @mode: mode to print
+ *
+ * LOCKING:
+ * None.
+ *
+ * Describe @mode using DRM_DEBUG.
+ */
+void drm_mode_debug_printmodeline(struct drm_display_mode *mode)
+{
+ DRM_DEBUG_KMS("Modeline %d:\"%s\" %d %d %d %d %d %d %d %d %d %d "
+ "0x%x 0x%x\n",
+ mode->base.id, mode->name, mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+}
+EXPORT_SYMBOL(drm_mode_debug_printmodeline);
+
+/**
+ * drm_cvt_mode -create a modeline based on CVT algorithm
+ * @dev: DRM device
+ * @hdisplay: hdisplay size
+ * @vdisplay: vdisplay size
+ * @vrefresh : vrefresh rate
+ * @reduced : Whether the GTF calculation is simplified
+ * @interlaced:Whether the interlace is supported
+ *
+ * LOCKING:
+ * none.
+ *
+ * return the modeline based on CVT algorithm
+ *
+ * This function is called to generate the modeline based on CVT algorithm
+ * according to the hdisplay, vdisplay, vrefresh.
+ * It is based from the VESA(TM) Coordinated Video Timing Generator by
+ * Graham Loveridge April 9, 2003 available at
+ * http://www.vesa.org/public/CVT/CVTd6r1.xls
+ *
+ * And it is copied from xf86CVTmode in xserver/hw/xfree86/modes/xf86cvt.c.
+ * What I have done is to translate it by using integer calculation.
+ */
+#define HV_FACTOR 1000
+struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
+ int vdisplay, int vrefresh,
+ bool reduced, bool interlaced, bool margins)
+{
+ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define CVT_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define CVT_H_GRANULARITY 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define CVT_MIN_V_PORCH 3
+ /* 4) Minimum number of vertical back porch lines - default 6 */
+#define CVT_MIN_V_BPORCH 6
+ /* Pixel Clock step (kHz) */
+#define CVT_CLOCK_STEP 250
+ struct drm_display_mode *drm_mode;
+ unsigned int vfieldrate, hperiod;
+ int hdisplay_rnd, hmargin, vdisplay_rnd, vmargin, vsync;
+ int interlace;
+
+ /* allocate the drm_display_mode structure. If failure, we will
+ * return directly
+ */
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* the CVT default refresh rate is 60Hz */
+ if (!vrefresh)
+ vrefresh = 60;
+
+ /* the required field fresh rate */
+ if (interlaced)
+ vfieldrate = vrefresh * 2;
+ else
+ vfieldrate = vrefresh;
+
+ /* horizontal pixels */
+ hdisplay_rnd = hdisplay - (hdisplay % CVT_H_GRANULARITY);
+
+ /* determine the left&right borders */
+ hmargin = 0;
+ if (margins) {
+ hmargin = hdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+ hmargin -= hmargin % CVT_H_GRANULARITY;
+ }
+ /* find the total active pixels */
+ drm_mode->hdisplay = hdisplay_rnd + 2 * hmargin;
+
+ /* find the number of lines per field */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* find the top & bottom borders */
+ vmargin = 0;
+ if (margins)
+ vmargin = vdisplay_rnd * CVT_MARGIN_PERCENTAGE / 1000;
+
+ drm_mode->vdisplay = vdisplay + 2 * vmargin;
+
+ /* Interlaced */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* Determine VSync Width from aspect ratio */
+ if (!(vdisplay % 3) && ((vdisplay * 4 / 3) == hdisplay))
+ vsync = 4;
+ else if (!(vdisplay % 9) && ((vdisplay * 16 / 9) == hdisplay))
+ vsync = 5;
+ else if (!(vdisplay % 10) && ((vdisplay * 16 / 10) == hdisplay))
+ vsync = 6;
+ else if (!(vdisplay % 4) && ((vdisplay * 5 / 4) == hdisplay))
+ vsync = 7;
+ else if (!(vdisplay % 9) && ((vdisplay * 15 / 9) == hdisplay))
+ vsync = 7;
+ else /* custom */
+ vsync = 10;
+
+ if (!reduced) {
+ /* simplify the GTF calculation */
+ /* 4) Minimum time of vertical sync + back porch interval (µs)
+ * default 550.0
+ */
+ int tmp1, tmp2;
+#define CVT_MIN_VSYNC_BP 550
+ /* 3) Nominal HSync width (% of line period) - default 8 */
+#define CVT_HSYNC_PERCENTAGE 8
+ unsigned int hblank_percentage;
+ int vsyncandback_porch, vback_porch, hblank;
+
+ /* estimated the horizontal period */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_MIN_VSYNC_BP * HV_FACTOR * vfieldrate;
+ tmp2 = (vdisplay_rnd + 2 * vmargin + CVT_MIN_V_PORCH) * 2 +
+ interlace;
+ hperiod = tmp1 * 2 / (tmp2 * vfieldrate);
+
+ tmp1 = CVT_MIN_VSYNC_BP * HV_FACTOR / hperiod + 1;
+ /* 9. Find number of lines in sync + backporch */
+ if (tmp1 < (vsync + CVT_MIN_V_PORCH))
+ vsyncandback_porch = vsync + CVT_MIN_V_PORCH;
+ else
+ vsyncandback_porch = tmp1;
+ /* 10. Find number of lines in back porch */
+ vback_porch = vsyncandback_porch - vsync;
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin +
+ vsyncandback_porch + CVT_MIN_V_PORCH;
+ /* 5) Definition of Horizontal blanking time limitation */
+ /* Gradient (%/kHz) - default 600 */
+#define CVT_M_FACTOR 600
+ /* Offset (%) - default 40 */
+#define CVT_C_FACTOR 40
+ /* Blanking time scaling factor - default 128 */
+#define CVT_K_FACTOR 128
+ /* Scaling factor weighting - default 20 */
+#define CVT_J_FACTOR 20
+#define CVT_M_PRIME (CVT_M_FACTOR * CVT_K_FACTOR / 256)
+#define CVT_C_PRIME ((CVT_C_FACTOR - CVT_J_FACTOR) * CVT_K_FACTOR / 256 + \
+ CVT_J_FACTOR)
+ /* 12. Find ideal blanking duty cycle from formula */
+ hblank_percentage = CVT_C_PRIME * HV_FACTOR - CVT_M_PRIME *
+ hperiod / 1000;
+ /* 13. Blanking time */
+ if (hblank_percentage < 20 * HV_FACTOR)
+ hblank_percentage = 20 * HV_FACTOR;
+ hblank = drm_mode->hdisplay * hblank_percentage /
+ (100 * HV_FACTOR - hblank_percentage);
+ hblank -= hblank % (2 * CVT_H_GRANULARITY);
+ /* 14. find the total pixes per line */
+ drm_mode->htotal = drm_mode->hdisplay + hblank;
+ drm_mode->hsync_end = drm_mode->hdisplay + hblank / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end -
+ (drm_mode->htotal * CVT_HSYNC_PERCENTAGE) / 100;
+ drm_mode->hsync_start += CVT_H_GRANULARITY -
+ drm_mode->hsync_start % CVT_H_GRANULARITY;
+ /* fill the Vsync values */
+ drm_mode->vsync_start = drm_mode->vdisplay + CVT_MIN_V_PORCH;
+ drm_mode->vsync_end = drm_mode->vsync_start + vsync;
+ } else {
+ /* Reduced blanking */
+ /* Minimum vertical blanking interval time (µs)- default 460 */
+#define CVT_RB_MIN_VBLANK 460
+ /* Fixed number of clocks for horizontal sync */
+#define CVT_RB_H_SYNC 32
+ /* Fixed number of clocks for horizontal blanking */
+#define CVT_RB_H_BLANK 160
+ /* Fixed number of lines for vertical front porch - default 3*/
+#define CVT_RB_VFPORCH 3
+ int vbilines;
+ int tmp1, tmp2;
+ /* 8. Estimate Horizontal period. */
+ tmp1 = HV_FACTOR * 1000000 -
+ CVT_RB_MIN_VBLANK * HV_FACTOR * vfieldrate;
+ tmp2 = vdisplay_rnd + 2 * vmargin;
+ hperiod = tmp1 / (tmp2 * vfieldrate);
+ /* 9. Find number of lines in vertical blanking */
+ vbilines = CVT_RB_MIN_VBLANK * HV_FACTOR / hperiod + 1;
+ /* 10. Check if vertical blanking is sufficient */
+ if (vbilines < (CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH))
+ vbilines = CVT_RB_VFPORCH + vsync + CVT_MIN_V_BPORCH;
+ /* 11. Find total number of lines in vertical field */
+ drm_mode->vtotal = vdisplay_rnd + 2 * vmargin + vbilines;
+ /* 12. Find total number of pixels in a line */
+ drm_mode->htotal = drm_mode->hdisplay + CVT_RB_H_BLANK;
+ /* Fill in HSync values */
+ drm_mode->hsync_end = drm_mode->hdisplay + CVT_RB_H_BLANK / 2;
+ drm_mode->hsync_start = drm_mode->hsync_end = CVT_RB_H_SYNC;
+ }
+ /* 15/13. Find pixel clock frequency (kHz for xf86) */
+ drm_mode->clock = drm_mode->htotal * HV_FACTOR * 1000 / hperiod;
+ drm_mode->clock -= drm_mode->clock % CVT_CLOCK_STEP;
+ /* 18/16. Find actual vertical frame frequency */
+ /* ignore - just set the mode flag for interlaced */
+ if (interlaced)
+ drm_mode->vtotal *= 2;
+ /* Fill the mode line name */
+ drm_mode_set_name(drm_mode);
+ if (reduced)
+ drm_mode->flags |= (DRM_MODE_FLAG_PHSYNC |
+ DRM_MODE_FLAG_NVSYNC);
+ else
+ drm_mode->flags |= (DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_NHSYNC);
+ if (interlaced)
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_cvt_mode);
+
+/**
+ * drm_gtf_mode - create the modeline based on GTF algorithm
+ *
+ * @dev :drm device
+ * @hdisplay :hdisplay size
+ * @vdisplay :vdisplay size
+ * @vrefresh :vrefresh rate.
+ * @interlaced :whether the interlace is supported
+ * @margins :whether the margin is supported
+ *
+ * LOCKING.
+ * none.
+ *
+ * return the modeline based on GTF algorithm
+ *
+ * This function is to create the modeline based on the GTF algorithm.
+ * Generalized Timing Formula is derived from:
+ * GTF Spreadsheet by Andy Morrish (1/5/97)
+ * available at http://www.vesa.org
+ *
+ * And it is copied from the file of xserver/hw/xfree86/modes/xf86gtf.c.
+ * What I have done is to translate it by using integer calculation.
+ * I also refer to the function of fb_get_mode in the file of
+ * drivers/video/fbmon.c
+ */
+struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay,
+ int vdisplay, int vrefresh,
+ bool interlaced, int margins)
+{
+ /* 1) top/bottom margin size (% of height) - default: 1.8, */
+#define GTF_MARGIN_PERCENTAGE 18
+ /* 2) character cell horizontal granularity (pixels) - default 8 */
+#define GTF_CELL_GRAN 8
+ /* 3) Minimum vertical porch (lines) - default 3 */
+#define GTF_MIN_V_PORCH 1
+ /* width of vsync in lines */
+#define V_SYNC_RQD 3
+ /* width of hsync as % of total line */
+#define H_SYNC_PERCENT 8
+ /* min time of vsync + back porch (microsec) */
+#define MIN_VSYNC_PLUS_BP 550
+ /* blanking formula gradient */
+#define GTF_M 600
+ /* blanking formula offset */
+#define GTF_C 40
+ /* blanking formula scaling factor */
+#define GTF_K 128
+ /* blanking formula scaling factor */
+#define GTF_J 20
+ /* C' and M' are part of the Blanking Duty Cycle computation */
+#define GTF_C_PRIME (((GTF_C - GTF_J) * GTF_K / 256) + GTF_J)
+#define GTF_M_PRIME (GTF_K * GTF_M / 256)
+ struct drm_display_mode *drm_mode;
+ unsigned int hdisplay_rnd, vdisplay_rnd, vfieldrate_rqd;
+ int top_margin, bottom_margin;
+ int interlace;
+ unsigned int hfreq_est;
+ int vsync_plus_bp, vback_porch;
+ unsigned int vtotal_lines, vfieldrate_est, hperiod;
+ unsigned int vfield_rate, vframe_rate;
+ int left_margin, right_margin;
+ unsigned int total_active_pixels, ideal_duty_cycle;
+ unsigned int hblank, total_pixels, pixel_freq;
+ int hsync, hfront_porch, vodd_front_porch_lines;
+ unsigned int tmp1, tmp2;
+
+ drm_mode = drm_mode_create(dev);
+ if (!drm_mode)
+ return NULL;
+
+ /* 1. In order to give correct results, the number of horizontal
+ * pixels requested is first processed to ensure that it is divisible
+ * by the character size, by rounding it to the nearest character
+ * cell boundary:
+ */
+ hdisplay_rnd = (hdisplay + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hdisplay_rnd = hdisplay_rnd * GTF_CELL_GRAN;
+
+ /* 2. If interlace is requested, the number of vertical lines assumed
+ * by the calculation must be halved, as the computation calculates
+ * the number of vertical lines per field.
+ */
+ if (interlaced)
+ vdisplay_rnd = vdisplay / 2;
+ else
+ vdisplay_rnd = vdisplay;
+
+ /* 3. Find the frame rate required: */
+ if (interlaced)
+ vfieldrate_rqd = vrefresh * 2;
+ else
+ vfieldrate_rqd = vrefresh;
+
+ /* 4. Find number of lines in Top margin: */
+ top_margin = 0;
+ if (margins)
+ top_margin = (vdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ /* 5. Find number of lines in bottom margin: */
+ bottom_margin = top_margin;
+
+ /* 6. If interlace is required, then set variable interlace: */
+ if (interlaced)
+ interlace = 1;
+ else
+ interlace = 0;
+
+ /* 7. Estimate the Horizontal frequency */
+ {
+ tmp1 = (1000000 - MIN_VSYNC_PLUS_BP * vfieldrate_rqd) / 500;
+ tmp2 = (vdisplay_rnd + 2 * top_margin + GTF_MIN_V_PORCH) *
+ 2 + interlace;
+ hfreq_est = (tmp2 * 1000 * vfieldrate_rqd) / tmp1;
+ }
+
+ /* 8. Find the number of lines in V sync + back porch */
+ /* [V SYNC+BP] = RINT(([MIN VSYNC+BP] * hfreq_est / 1000000)) */
+ vsync_plus_bp = MIN_VSYNC_PLUS_BP * hfreq_est / 1000;
+ vsync_plus_bp = (vsync_plus_bp + 500) / 1000;
+ /* 9. Find the number of lines in V back porch alone: */
+ vback_porch = vsync_plus_bp - V_SYNC_RQD;
+ /* 10. Find the total number of lines in Vertical field period: */
+ vtotal_lines = vdisplay_rnd + top_margin + bottom_margin +
+ vsync_plus_bp + GTF_MIN_V_PORCH;
+ /* 11. Estimate the Vertical field frequency: */
+ vfieldrate_est = hfreq_est / vtotal_lines;
+ /* 12. Find the actual horizontal period: */
+ hperiod = 1000000 / (vfieldrate_rqd * vtotal_lines);
+
+ /* 13. Find the actual Vertical field frequency: */
+ vfield_rate = hfreq_est / vtotal_lines;
+ /* 14. Find the Vertical frame frequency: */
+ if (interlaced)
+ vframe_rate = vfield_rate / 2;
+ else
+ vframe_rate = vfield_rate;
+ /* 15. Find number of pixels in left margin: */
+ if (margins)
+ left_margin = (hdisplay_rnd * GTF_MARGIN_PERCENTAGE + 500) /
+ 1000;
+ else
+ left_margin = 0;
+
+ /* 16.Find number of pixels in right margin: */
+ right_margin = left_margin;
+ /* 17.Find total number of active pixels in image and left and right */
+ total_active_pixels = hdisplay_rnd + left_margin + right_margin;
+ /* 18.Find the ideal blanking duty cycle from blanking duty cycle */
+ ideal_duty_cycle = GTF_C_PRIME * 1000 -
+ (GTF_M_PRIME * 1000000 / hfreq_est);
+ /* 19.Find the number of pixels in the blanking time to the nearest
+ * double character cell: */
+ hblank = total_active_pixels * ideal_duty_cycle /
+ (100000 - ideal_duty_cycle);
+ hblank = (hblank + GTF_CELL_GRAN) / (2 * GTF_CELL_GRAN);
+ hblank = hblank * 2 * GTF_CELL_GRAN;
+ /* 20.Find total number of pixels: */
+ total_pixels = total_active_pixels + hblank;
+ /* 21.Find pixel clock frequency: */
+ pixel_freq = total_pixels * hfreq_est / 1000;
+ /* Stage 1 computations are now complete; I should really pass
+ * the results to another function and do the Stage 2 computations,
+ * but I only need a few more values so I'll just append the
+ * computations here for now */
+ /* 17. Find the number of pixels in the horizontal sync period: */
+ hsync = H_SYNC_PERCENT * total_pixels / 100;
+ hsync = (hsync + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN;
+ hsync = hsync * GTF_CELL_GRAN;
+ /* 18. Find the number of pixels in horizontal front porch period */
+ hfront_porch = hblank / 2 - hsync;
+ /* 36. Find the number of lines in the odd front porch period: */
+ vodd_front_porch_lines = GTF_MIN_V_PORCH ;
+
+ /* finally, pack the results in the mode struct */
+ drm_mode->hdisplay = hdisplay_rnd;
+ drm_mode->hsync_start = hdisplay_rnd + hfront_porch;
+ drm_mode->hsync_end = drm_mode->hsync_start + hsync;
+ drm_mode->htotal = total_pixels;
+ drm_mode->vdisplay = vdisplay_rnd;
+ drm_mode->vsync_start = vdisplay_rnd + vodd_front_porch_lines;
+ drm_mode->vsync_end = drm_mode->vsync_start + V_SYNC_RQD;
+ drm_mode->vtotal = vtotal_lines;
+
+ drm_mode->clock = pixel_freq;
+
+ drm_mode_set_name(drm_mode);
+ drm_mode->flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC;
+
+ if (interlaced) {
+ drm_mode->vtotal *= 2;
+ drm_mode->flags |= DRM_MODE_FLAG_INTERLACE;
+ }
+
+ return drm_mode;
+}
+EXPORT_SYMBOL(drm_gtf_mode);
+/**
+ * drm_mode_set_name - set the name on a mode
+ * @mode: name will be set in this mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Set the name of @mode to a standard format.
+ */
+void drm_mode_set_name(struct drm_display_mode *mode)
+{
+ snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d", mode->hdisplay,
+ mode->vdisplay);
+}
+EXPORT_SYMBOL(drm_mode_set_name);
+
+/**
+ * drm_mode_list_concat - move modes from one list to another
+ * @head: source list
+ * @new: dst list
+ *
+ * LOCKING:
+ * Caller must ensure both lists are locked.
+ *
+ * Move all the modes from @head to @new.
+ */
+void drm_mode_list_concat(struct list_head *head, struct list_head *new)
+{
+
+ struct list_head *entry, *tmp;
+
+ list_for_each_safe(entry, tmp, head) {
+ list_move_tail(entry, new);
+ }
+}
+EXPORT_SYMBOL(drm_mode_list_concat);
+
+/**
+ * drm_mode_width - get the width of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's width (hdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->hdisplay
+ */
+int drm_mode_width(struct drm_display_mode *mode)
+{
+ return mode->hdisplay;
+
+}
+EXPORT_SYMBOL(drm_mode_width);
+
+/**
+ * drm_mode_height - get the height of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's height (vdisplay) value.
+ *
+ * FIXME: is this needed?
+ *
+ * RETURNS:
+ * @mode->vdisplay
+ */
+int drm_mode_height(struct drm_display_mode *mode)
+{
+ return mode->vdisplay;
+}
+EXPORT_SYMBOL(drm_mode_height);
+
+/** drm_mode_hsync - get the hsync of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @modes's hsync rate in kHz, rounded to the nearest int.
+ */
+int drm_mode_hsync(struct drm_display_mode *mode)
+{
+ unsigned int calc_val;
+
+ if (mode->hsync)
+ return mode->hsync;
+
+ if (mode->htotal < 0)
+ return 0;
+
+ calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
+ calc_val += 500; /* round to 1000Hz */
+ calc_val /= 1000; /* truncate to kHz */
+
+ return calc_val;
+}
+EXPORT_SYMBOL(drm_mode_hsync);
+
+/**
+ * drm_mode_vrefresh - get the vrefresh of a mode
+ * @mode: mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Return @mode's vrefresh rate in Hz or calculate it if necessary.
+ *
+ * FIXME: why is this needed? shouldn't vrefresh be set already?
+ *
+ * RETURNS:
+ * Vertical refresh rate. It will be the result of actual value plus 0.5.
+ * If it is 70.288, it will return 70Hz.
+ * If it is 59.6, it will return 60Hz.
+ */
+int drm_mode_vrefresh(struct drm_display_mode *mode)
+{
+ int refresh = 0;
+ unsigned int calc_val;
+
+ if (mode->vrefresh > 0)
+ refresh = mode->vrefresh;
+ else if (mode->htotal > 0 && mode->vtotal > 0) {
+ int vtotal;
+ vtotal = mode->vtotal;
+ /* work out vrefresh the value will be x1000 */
+ calc_val = (mode->clock * 1000);
+ calc_val /= mode->htotal;
+ refresh = (calc_val + vtotal / 2) / vtotal;
+
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ refresh *= 2;
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ refresh /= 2;
+ if (mode->vscan > 1)
+ refresh /= mode->vscan;
+ }
+ return refresh;
+}
+EXPORT_SYMBOL(drm_mode_vrefresh);
+
+/**
+ * drm_mode_set_crtcinfo - set CRTC modesetting parameters
+ * @p: mode
+ * @adjust_flags: unused? (FIXME)
+ *
+ * LOCKING:
+ * None.
+ *
+ * Setup the CRTC modesetting parameters for @p, adjusting if necessary.
+ */
+void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)
+{
+ if ((p == NULL) || ((p->type & DRM_MODE_TYPE_CRTC_C) == DRM_MODE_TYPE_BUILTIN))
+ return;
+
+ p->crtc_hdisplay = p->hdisplay;
+ p->crtc_hsync_start = p->hsync_start;
+ p->crtc_hsync_end = p->hsync_end;
+ p->crtc_htotal = p->htotal;
+ p->crtc_hskew = p->hskew;
+ p->crtc_vdisplay = p->vdisplay;
+ p->crtc_vsync_start = p->vsync_start;
+ p->crtc_vsync_end = p->vsync_end;
+ p->crtc_vtotal = p->vtotal;
+
+ if (p->flags & DRM_MODE_FLAG_INTERLACE) {
+ if (adjust_flags & CRTC_INTERLACE_HALVE_V) {
+ p->crtc_vdisplay /= 2;
+ p->crtc_vsync_start /= 2;
+ p->crtc_vsync_end /= 2;
+ p->crtc_vtotal /= 2;
+ }
+
+ p->crtc_vtotal |= 1;
+ }
+
+ if (p->flags & DRM_MODE_FLAG_DBLSCAN) {
+ p->crtc_vdisplay *= 2;
+ p->crtc_vsync_start *= 2;
+ p->crtc_vsync_end *= 2;
+ p->crtc_vtotal *= 2;
+ }
+
+ if (p->vscan > 1) {
+ p->crtc_vdisplay *= p->vscan;
+ p->crtc_vsync_start *= p->vscan;
+ p->crtc_vsync_end *= p->vscan;
+ p->crtc_vtotal *= p->vscan;
+ }
+
+ p->crtc_vblank_start = min(p->crtc_vsync_start, p->crtc_vdisplay);
+ p->crtc_vblank_end = max(p->crtc_vsync_end, p->crtc_vtotal);
+ p->crtc_hblank_start = min(p->crtc_hsync_start, p->crtc_hdisplay);
+ p->crtc_hblank_end = max(p->crtc_hsync_end, p->crtc_htotal);
+
+ p->crtc_hadjusted = false;
+ p->crtc_vadjusted = false;
+}
+EXPORT_SYMBOL(drm_mode_set_crtcinfo);
+
+
+/**
+ * drm_mode_duplicate - allocate and duplicate an existing mode
+ * @m: mode to duplicate
+ *
+ * LOCKING:
+ * None.
+ *
+ * Just allocate a new mode, copy the existing mode into it, and return
+ * a pointer to it. Used to create new instances of established modes.
+ */
+struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
+ struct drm_display_mode *mode)
+{
+ struct drm_display_mode *nmode;
+ int new_id;
+
+ nmode = drm_mode_create(dev);
+ if (!nmode)
+ return NULL;
+
+ new_id = nmode->base.id;
+ *nmode = *mode;
+ nmode->base.id = new_id;
+ INIT_LIST_HEAD(&nmode->head);
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_duplicate);
+
+/**
+ * drm_mode_equal - test modes for equality
+ * @mode1: first mode
+ * @mode2: second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Check to see if @mode1 and @mode2 are equivalent.
+ *
+ * RETURNS:
+ * True if the modes are equal, false otherwise.
+ */
+bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2)
+{
+ /* do clock check convert to PICOS so fb modes get matched
+ * the same */
+ if (mode1->clock && mode2->clock) {
+ if (KHZ2PICOS(mode1->clock) != KHZ2PICOS(mode2->clock))
+ return false;
+ } else if (mode1->clock != mode2->clock)
+ return false;
+
+ if (mode1->hdisplay == mode2->hdisplay &&
+ mode1->hsync_start == mode2->hsync_start &&
+ mode1->hsync_end == mode2->hsync_end &&
+ mode1->htotal == mode2->htotal &&
+ mode1->hskew == mode2->hskew &&
+ mode1->vdisplay == mode2->vdisplay &&
+ mode1->vsync_start == mode2->vsync_start &&
+ mode1->vsync_end == mode2->vsync_end &&
+ mode1->vtotal == mode2->vtotal &&
+ mode1->vscan == mode2->vscan &&
+ mode1->flags == mode2->flags)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(drm_mode_equal);
+
+/**
+ * drm_mode_validate_size - make sure modes adhere to size constraints
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @maxX: maximum width
+ * @maxY: maximum height
+ * @maxPitch: max pitch
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * The DRM device (@dev) has size and pitch limits. Here we validate the
+ * modes we probed for @dev against those limits and set their status as
+ * necessary.
+ */
+void drm_mode_validate_size(struct drm_device *dev,
+ struct list_head *mode_list,
+ int maxX, int maxY, int maxPitch)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, mode_list, head) {
+ if (maxPitch > 0 && mode->hdisplay > maxPitch)
+ mode->status = MODE_BAD_WIDTH;
+
+ if (maxX > 0 && mode->hdisplay > maxX)
+ mode->status = MODE_VIRTUAL_X;
+
+ if (maxY > 0 && mode->vdisplay > maxY)
+ mode->status = MODE_VIRTUAL_Y;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_size);
+
+/**
+ * drm_mode_validate_clocks - validate modes against clock limits
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @min: minimum clock rate array
+ * @max: maximum clock rate array
+ * @n_ranges: number of clock ranges (size of arrays)
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Some code may need to check a mode list against the clock limits of the
+ * device in question. This function walks the mode list, testing to make
+ * sure each mode falls within a given range (defined by @min and @max
+ * arrays) and sets @mode->status as needed.
+ */
+void drm_mode_validate_clocks(struct drm_device *dev,
+ struct list_head *mode_list,
+ int *min, int *max, int n_ranges)
+{
+ struct drm_display_mode *mode;
+ int i;
+
+ list_for_each_entry(mode, mode_list, head) {
+ bool good = false;
+ for (i = 0; i < n_ranges; i++) {
+ if (mode->clock >= min[i] && mode->clock <= max[i]) {
+ good = true;
+ break;
+ }
+ }
+ if (!good)
+ mode->status = MODE_CLOCK_RANGE;
+ }
+}
+EXPORT_SYMBOL(drm_mode_validate_clocks);
+
+/**
+ * drm_mode_prune_invalid - remove invalid modes from mode list
+ * @dev: DRM device
+ * @mode_list: list of modes to check
+ * @verbose: be verbose about it
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Once mode list generation is complete, a caller can use this routine to
+ * remove invalid modes from a mode list. If any of the modes have a
+ * status other than %MODE_OK, they are removed from @mode_list and freed.
+ */
+void drm_mode_prune_invalid(struct drm_device *dev,
+ struct list_head *mode_list, bool verbose)
+{
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, mode_list, head) {
+ if (mode->status != MODE_OK) {
+ list_del(&mode->head);
+ if (verbose) {
+ drm_mode_debug_printmodeline(mode);
+ DRM_DEBUG_KMS("Not using %s mode %d\n",
+ mode->name, mode->status);
+ }
+ drm_mode_destroy(dev, mode);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_prune_invalid);
+
+/**
+ * drm_mode_compare - compare modes for favorability
+ * @lh_a: list_head for first mode
+ * @lh_b: list_head for second mode
+ *
+ * LOCKING:
+ * None.
+ *
+ * Compare two modes, given by @lh_a and @lh_b, returning a value indicating
+ * which is better.
+ *
+ * RETURNS:
+ * Negative if @lh_a is better than @lh_b, zero if they're equivalent, or
+ * positive if @lh_b is better than @lh_a.
+ */
+static int drm_mode_compare(struct list_head *lh_a, struct list_head *lh_b)
+{
+ struct drm_display_mode *a = list_entry(lh_a, struct drm_display_mode, head);
+ struct drm_display_mode *b = list_entry(lh_b, struct drm_display_mode, head);
+ int diff;
+
+ diff = ((b->type & DRM_MODE_TYPE_PREFERRED) != 0) -
+ ((a->type & DRM_MODE_TYPE_PREFERRED) != 0);
+ if (diff)
+ return diff;
+ diff = b->hdisplay * b->vdisplay - a->hdisplay * a->vdisplay;
+ if (diff)
+ return diff;
+ diff = b->clock - a->clock;
+ return diff;
+}
+
+/* FIXME: what we don't have a list sort function? */
+/* list sort from Mark J Roberts (mjr@znex.org) */
+void list_sort(struct list_head *head,
+ int (*cmp)(struct list_head *a, struct list_head *b))
+{
+ struct list_head *p, *q, *e, *list, *tail, *oldhead;
+ int insize, nmerges, psize, qsize, i;
+
+ list = head->next;
+ list_del(head);
+ insize = 1;
+ for (;;) {
+ p = oldhead = list;
+ list = tail = NULL;
+ nmerges = 0;
+
+ while (p) {
+ nmerges++;
+ q = p;
+ psize = 0;
+ for (i = 0; i < insize; i++) {
+ psize++;
+ q = q->next == oldhead ? NULL : q->next;
+ if (!q)
+ break;
+ }
+
+ qsize = insize;
+ while (psize > 0 || (qsize > 0 && q)) {
+ if (!psize) {
+ e = q;
+ q = q->next;
+ qsize--;
+ if (q == oldhead)
+ q = NULL;
+ } else if (!qsize || !q) {
+ e = p;
+ p = p->next;
+ psize--;
+ if (p == oldhead)
+ p = NULL;
+ } else if (cmp(p, q) <= 0) {
+ e = p;
+ p = p->next;
+ psize--;
+ if (p == oldhead)
+ p = NULL;
+ } else {
+ e = q;
+ q = q->next;
+ qsize--;
+ if (q == oldhead)
+ q = NULL;
+ }
+ if (tail)
+ tail->next = e;
+ else
+ list = e;
+ e->prev = tail;
+ tail = e;
+ }
+ p = q;
+ }
+
+ tail->next = list;
+ list->prev = tail;
+
+ if (nmerges <= 1)
+ break;
+
+ insize *= 2;
+ }
+
+ head->next = list;
+ head->prev = list->prev;
+ list->prev->next = head;
+ list->prev = head;
+}
+
+/**
+ * drm_mode_sort - sort mode list
+ * @mode_list: list to sort
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * Sort @mode_list by favorability, putting good modes first.
+ */
+void drm_mode_sort(struct list_head *mode_list)
+{
+ list_sort(mode_list, drm_mode_compare);
+}
+EXPORT_SYMBOL(drm_mode_sort);
+
+/**
+ * drm_mode_connector_list_update - update the mode list for the connector
+ * @connector: the connector to update
+ *
+ * LOCKING:
+ * Caller must hold a lock protecting @mode_list.
+ *
+ * This moves the modes from the @connector probed_modes list
+ * to the actual mode list. It compares the probed mode against the current
+ * list and only adds different modes. All modes unverified after this point
+ * will be removed by the prune invalid modes.
+ */
+void drm_mode_connector_list_update(struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+ struct drm_display_mode *pmode, *pt;
+ int found_it;
+
+ list_for_each_entry_safe(pmode, pt, &connector->probed_modes,
+ head) {
+ found_it = 0;
+ /* go through current modes checking for the new probed mode */
+ list_for_each_entry(mode, &connector->modes, head) {
+ if (drm_mode_equal(pmode, mode)) {
+ found_it = 1;
+ /* if equal delete the probed mode */
+ mode->status = pmode->status;
+ /* Merge type bits together */
+ mode->type |= pmode->type;
+ list_del(&pmode->head);
+ drm_mode_destroy(connector->dev, pmode);
+ break;
+ }
+ }
+
+ if (!found_it) {
+ list_move_tail(&pmode->head, &connector->modes);
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_list_update);
--- /dev/null
+/* drm_pci.h -- PCI DMA memory management wrappers for DRM -*- linux-c -*- */
+/**
+ * \file drm_pci.c
+ * \brief Functions and ioctls to manage PCI memory
+ *
+ * \warning These interfaces aren't stable yet.
+ *
+ * \todo Implement the remaining ioctl's for the PCI pools.
+ * \todo The wrappers here are so thin that they would be better off inlined..
+ *
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ * \author Leif Delgass <ldelgass@retinalburn.net>
+ */
+
+/*
+ * Copyright 2003 José Fonseca.
+ * Copyright 2003 Leif Delgass.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include "drmP.h"
+
+/**********************************************************************/
+/** \name PCI memory */
+/*@{*/
+
+/**
+ * \brief Allocate a PCI consistent memory block, for DMA.
+ */
+drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align,
+ dma_addr_t maxaddr)
+{
+ drm_dma_handle_t *dmah;
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ /* pci_alloc_consistent only guarantees alignment to the smallest
+ * PAGE_SIZE order which is greater than or equal to the requested size.
+ * Return NULL here for now to make sure nobody tries for larger alignment
+ */
+ if (align > size)
+ return NULL;
+
+ if (pci_set_dma_mask(dev->pdev, maxaddr) != 0) {
+ DRM_ERROR("Setting pci dma mask failed\n");
+ return NULL;
+ }
+
+ dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
+ if (!dmah)
+ return NULL;
+
+ dmah->size = size;
+ dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP);
+
+ if (dmah->vaddr == NULL) {
+ kfree(dmah);
+ return NULL;
+ }
+
+ memset(dmah->vaddr, 0, size);
+
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Reserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ SetPageReserved(virt_to_page(addr));
+ }
+
+ return dmah;
+}
+
+EXPORT_SYMBOL(drm_pci_alloc);
+
+/**
+ * \brief Free a PCI consistent memory block without freeing its descriptor.
+ *
+ * This function is for internal use in the Linux-specific DRM core code.
+ */
+void __drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+#if 1
+ unsigned long addr;
+ size_t sz;
+#endif
+
+ if (dmah->vaddr) {
+ /* XXX - Is virt_to_page() legal for consistent mem? */
+ /* Unreserve */
+ for (addr = (unsigned long)dmah->vaddr, sz = dmah->size;
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ }
+ dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr,
+ dmah->busaddr);
+ }
+}
+
+/**
+ * \brief Free a PCI consistent memory block
+ */
+void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
+{
+ __drm_pci_free(dev, dmah);
+ kfree(dmah);
+}
+
+EXPORT_SYMBOL(drm_pci_free);
+
+/*@}*/
--- /dev/null
+/**
+ * \file drm_proc.c
+ * /proc support for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * \par Acknowledgements:
+ * Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
+ * the problem with the proc files not outputting all their information.
+ */
+
+/*
+ * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+/**
+ * Proc file list.
+ */
+static struct drm_info_list drm_proc_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+ {"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
+
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node* node = PDE(inode)->data;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+static const struct file_operations drm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of proc files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI proc dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
+ */
+int drm_proc_create_files(struct drm_info_list *files, int count,
+ struct proc_dir_entry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct proc_dir_entry *ent;
+ struct drm_info_node *tmp;
+ char name[64];
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ tmp->minor = minor;
+ tmp->info_ent = &files[i];
+ list_add(&tmp->list, &minor->proc_nodes.list);
+
+ ent = proc_create_data(files[i].name, S_IRUGO, root,
+ &drm_proc_fops, tmp);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, files[i].name);
+ list_del(&tmp->list);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ }
+ return 0;
+
+fail:
+ for (i = 0; i < count; i++)
+ remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
+ return ret;
+}
+
+/**
+ * Initialize the DRI proc filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI proc dir entry.
+ * \param dev_root resulting DRI device proc dir entry.
+ * \return root entry pointer on success, or NULL on failure.
+ *
+ * Create the DRI proc root entry "/proc/dri", the device proc root entry
+ * "/proc/dri/%minor%/", and each entry in proc_list as
+ * "/proc/dri/%minor%/%name%".
+ */
+int drm_proc_init(struct drm_minor *minor, int minor_id,
+ struct proc_dir_entry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->proc_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->proc_root = proc_mkdir(name, root);
+ if (!minor->proc_root) {
+ DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+ minor->proc_root, minor);
+ if (ret) {
+ remove_proc_entry(name, root);
+ minor->proc_root = NULL;
+ DRM_ERROR("Failed to create core drm proc files\n");
+ return ret;
+ }
+
+ if (dev->driver->proc_init) {
+ ret = dev->driver->proc_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/proc/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+int drm_proc_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ remove_proc_entry(files[i].name,
+ minor->proc_root);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * Cleanup the proc filesystem resources.
+ *
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
+ *
+ * Remove all proc entries created by proc_init().
+ */
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+
+ if (!root || !minor->proc_root)
+ return 0;
+
+ if (dev->driver->proc_cleanup)
+ dev->driver->proc_cleanup(minor);
+
+ drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
+
+ sprintf(name, "%d", minor->index);
+ remove_proc_entry(name, root);
+
+ return 0;
+}
+
--- /dev/null
+/**
+ * \file drm_scatter.c
+ * IOCTLs to manage scatter/gather memory
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include "drmP.h"
+
+#define DEBUG_SCATTER 0
+
+static inline void *drm_vmalloc_dma(unsigned long size)
+{
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL | _PAGE_NO_CACHE);
+#else
+ return vmalloc_32(size);
+#endif
+}
+
+void drm_sg_cleanup(struct drm_sg_mem * entry)
+{
+ struct page *page;
+ int i;
+
+ for (i = 0; i < entry->pages; i++) {
+ page = entry->pagelist[i];
+ if (page)
+ ClearPageReserved(page);
+ }
+
+ vfree(entry->virtual);
+
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+}
+
+#ifdef _LP64
+# define ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1)))
+#else
+# define ScatterHandle(x) (unsigned int)(x)
+#endif
+
+int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request)
+{
+ struct drm_sg_mem *entry;
+ unsigned long pages, i, j;
+
+ DRM_DEBUG("\n");
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (dev->sg)
+ return -EINVAL;
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages);
+
+ entry->pages = pages;
+ entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);
+ if (!entry->pagelist) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist));
+
+ entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);
+ if (!entry->busaddr) {
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+ memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr));
+
+ entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT);
+ if (!entry->virtual) {
+ kfree(entry->busaddr);
+ kfree(entry->pagelist);
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ /* This also forces the mapping of COW pages, so our page list
+ * will be valid. Please don't remove it...
+ */
+ memset(entry->virtual, 0, pages << PAGE_SHIFT);
+
+ entry->handle = ScatterHandle((unsigned long)entry->virtual);
+
+ DRM_DEBUG("handle = %08lx\n", entry->handle);
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ for (i = (unsigned long)entry->virtual, j = 0; j < pages;
+ i += PAGE_SIZE, j++) {
+ entry->pagelist[j] = vmalloc_to_page((void *)i);
+ if (!entry->pagelist[j])
+ goto failed;
+ SetPageReserved(entry->pagelist[j]);
+ }
+
+ request->handle = entry->handle;
+
+ dev->sg = entry;
+
+#if DEBUG_SCATTER
+ /* Verify that each page points to its virtual address, and vice
+ * versa.
+ */
+ {
+ int error = 0;
+
+ for (i = 0; i < pages; i++) {
+ unsigned long *tmp;
+
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0xcafebabe;
+ }
+ tmp = (unsigned long *)((u8 *) entry->virtual +
+ (PAGE_SIZE * i));
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ if (*tmp != 0xcafebabe && error == 0) {
+ error = 1;
+ DRM_ERROR("Scatter allocation error, "
+ "pagelist does not match "
+ "virtual mapping\n");
+ }
+ }
+ tmp = page_address(entry->pagelist[i]);
+ for (j = 0;
+ j < PAGE_SIZE / sizeof(unsigned long);
+ j++, tmp++) {
+ *tmp = 0;
+ }
+ }
+ if (error == 0)
+ DRM_ERROR("Scatter allocation matches pagelist\n");
+ }
+#endif
+
+ return 0;
+
+ failed:
+ drm_sg_cleanup(entry);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_sg_alloc);
+
+
+int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+
+ return drm_sg_alloc(dev, request);
+
+}
+
+int drm_sg_free(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_scatter_gather *request = data;
+ struct drm_sg_mem *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ entry = dev->sg;
+ dev->sg = NULL;
+
+ if (!entry || entry->handle != request->handle)
+ return -EINVAL;
+
+ DRM_DEBUG("virtual = %p\n", entry->virtual);
+
+ drm_sg_cleanup(entry);
+
+ return 0;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple memory manager interface that keeps track on allocate regions on a
+ * per "owner" basis. All regions associated with an "owner" can be released
+ * with a simple call. Typically if the "owner" exists. The owner is any
+ * "unsigned long" identifier. Can typically be a pointer to a file private
+ * struct or a context identifier.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drm_sman.h"
+
+struct drm_owner_item {
+ struct drm_hash_item owner_hash;
+ struct list_head sman_list;
+ struct list_head mem_blocks;
+};
+
+void drm_sman_takedown(struct drm_sman * sman)
+{
+ drm_ht_remove(&sman->user_hash_tab);
+ drm_ht_remove(&sman->owner_hash_tab);
+ kfree(sman->mm);
+}
+
+EXPORT_SYMBOL(drm_sman_takedown);
+
+int
+drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
+ unsigned int user_order, unsigned int owner_order)
+{
+ int ret = 0;
+
+ sman->mm = (struct drm_sman_mm *) kcalloc(num_managers,
+ sizeof(*sman->mm),
+ GFP_KERNEL);
+ if (!sman->mm) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ sman->num_managers = num_managers;
+ INIT_LIST_HEAD(&sman->owner_items);
+ ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
+ if (ret)
+ goto out1;
+ ret = drm_ht_create(&sman->user_hash_tab, user_order);
+ if (!ret)
+ goto out;
+
+ drm_ht_remove(&sman->owner_hash_tab);
+out1:
+ kfree(sman->mm);
+out:
+ return ret;
+}
+
+EXPORT_SYMBOL(drm_sman_init);
+
+static void *drm_sman_mm_allocate(void *private, unsigned long size,
+ unsigned alignment)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ struct drm_mm_node *tmp;
+
+ tmp = drm_mm_search_free(mm, size, alignment, 1);
+ if (!tmp) {
+ return NULL;
+ }
+ tmp = drm_mm_get_block(tmp, size, alignment);
+ return tmp;
+}
+
+static void drm_sman_mm_free(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+
+ drm_mm_put_block(node);
+}
+
+static void drm_sman_mm_destroy(void *private)
+{
+ struct drm_mm *mm = (struct drm_mm *) private;
+ drm_mm_takedown(mm);
+ kfree(mm);
+}
+
+static unsigned long drm_sman_mm_offset(void *private, void *ref)
+{
+ struct drm_mm_node *node = (struct drm_mm_node *) ref;
+ return node->start;
+}
+
+int
+drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
+ unsigned long start, unsigned long size)
+{
+ struct drm_sman_mm *sman_mm;
+ struct drm_mm *mm;
+ int ret;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ mm = kzalloc(sizeof(*mm), GFP_KERNEL);
+ if (!mm) {
+ return -ENOMEM;
+ }
+ sman_mm->private = mm;
+ ret = drm_mm_init(mm, start, size);
+
+ if (ret) {
+ kfree(mm);
+ return ret;
+ }
+
+ sman_mm->allocate = drm_sman_mm_allocate;
+ sman_mm->free = drm_sman_mm_free;
+ sman_mm->destroy = drm_sman_mm_destroy;
+ sman_mm->offset = drm_sman_mm_offset;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_set_range);
+
+int
+drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
+ struct drm_sman_mm * allocator)
+{
+ BUG_ON(manager >= sman->num_managers);
+ sman->mm[manager] = *allocator;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_sman_set_manager);
+
+static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
+ unsigned long owner)
+{
+ int ret;
+ struct drm_hash_item *owner_hash_item;
+ struct drm_owner_item *owner_item;
+
+ ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
+ if (!ret) {
+ return drm_hash_entry(owner_hash_item, struct drm_owner_item,
+ owner_hash);
+ }
+
+ owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
+ if (!owner_item)
+ goto out;
+
+ INIT_LIST_HEAD(&owner_item->mem_blocks);
+ owner_item->owner_hash.key = owner;
+ if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
+ goto out1;
+
+ list_add_tail(&owner_item->sman_list, &sman->owner_items);
+ return owner_item;
+
+out1:
+ kfree(owner_item);
+out:
+ return NULL;
+}
+
+struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
+ unsigned long size, unsigned alignment,
+ unsigned long owner)
+{
+ void *tmp;
+ struct drm_sman_mm *sman_mm;
+ struct drm_owner_item *owner_item;
+ struct drm_memblock_item *memblock;
+
+ BUG_ON(manager >= sman->num_managers);
+
+ sman_mm = &sman->mm[manager];
+ tmp = sman_mm->allocate(sman_mm->private, size, alignment);
+
+ if (!tmp) {
+ return NULL;
+ }
+
+ memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
+
+ if (!memblock)
+ goto out;
+
+ memblock->mm_info = tmp;
+ memblock->mm = sman_mm;
+ memblock->sman = sman;
+
+ if (drm_ht_just_insert_please
+ (&sman->user_hash_tab, &memblock->user_hash,
+ (unsigned long)memblock, 32, 0, 0))
+ goto out1;
+
+ owner_item = drm_sman_get_owner_item(sman, owner);
+ if (!owner_item)
+ goto out2;
+
+ list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
+
+ return memblock;
+
+out2:
+ drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
+out1:
+ kfree(memblock);
+out:
+ sman_mm->free(sman_mm->private, tmp);
+
+ return NULL;
+}
+
+EXPORT_SYMBOL(drm_sman_alloc);
+
+static void drm_sman_free(struct drm_memblock_item *item)
+{
+ struct drm_sman *sman = item->sman;
+
+ list_del(&item->owner_list);
+ drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
+ item->mm->free(item->mm->private, item->mm_info);
+ kfree(item);
+}
+
+int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
+{
+ struct drm_hash_item *hash_item;
+ struct drm_memblock_item *memblock_item;
+
+ if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
+ return -EINVAL;
+
+ memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
+ user_hash);
+ drm_sman_free(memblock_item);
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_free_key);
+
+static void drm_sman_remove_owner(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ list_del(&owner_item->sman_list);
+ drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
+ kfree(owner_item);
+}
+
+int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+ return -1;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
+ drm_sman_remove_owner(sman, owner_item);
+ return -1;
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_sman_owner_clean);
+
+static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
+ struct drm_owner_item *owner_item)
+{
+ struct drm_memblock_item *entry, *next;
+
+ list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
+ owner_list) {
+ drm_sman_free(entry);
+ }
+ drm_sman_remove_owner(sman, owner_item);
+}
+
+void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
+{
+
+ struct drm_hash_item *hash_item;
+ struct drm_owner_item *owner_item;
+
+ if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
+
+ return;
+ }
+
+ owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
+ drm_sman_do_owner_cleanup(sman, owner_item);
+}
+
+EXPORT_SYMBOL(drm_sman_owner_cleanup);
+
+void drm_sman_cleanup(struct drm_sman *sman)
+{
+ struct drm_owner_item *entry, *next;
+ unsigned int i;
+ struct drm_sman_mm *sman_mm;
+
+ list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
+ drm_sman_do_owner_cleanup(sman, entry);
+ }
+ if (sman->mm) {
+ for (i = 0; i < sman->num_managers; ++i) {
+ sman_mm = &sman->mm[i];
+ if (sman_mm->private) {
+ sman_mm->destroy(sman_mm->private);
+ sman_mm->private = NULL;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_sman_cleanup);
--- /dev/null
+/**
+ * \file drm_stub.h
+ * Stub support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
+ *
+ * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+unsigned int drm_debug = 0; /* 1 to enable debug output */
+EXPORT_SYMBOL(drm_debug);
+
+MODULE_AUTHOR(CORE_AUTHOR);
+MODULE_DESCRIPTION(CORE_DESC);
+MODULE_LICENSE("GPL and additional rights");
+MODULE_PARM_DESC(debug, "Enable debug output");
+
+module_param_named(debug, drm_debug, int, 0600);
+
+struct idr drm_minors_idr;
+
+struct class *drm_class;
+struct proc_dir_entry *drm_proc_root;
+struct dentry *drm_debugfs_root;
+void drm_ut_debug_printk(unsigned int request_level,
+ const char *prefix,
+ const char *function_name,
+ const char *format, ...)
+{
+ va_list args;
+
+ if (drm_debug & request_level) {
+ if (function_name)
+ printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
+ va_start(args, format);
+ vprintk(format, args);
+ va_end(args);
+ }
+}
+EXPORT_SYMBOL(drm_ut_debug_printk);
+static int drm_minor_get_id(struct drm_device *dev, int type)
+{
+ int new_id;
+ int ret;
+ int base = 0, limit = 63;
+
+ if (type == DRM_MINOR_CONTROL) {
+ base += 64;
+ limit = base + 127;
+ } else if (type == DRM_MINOR_RENDER) {
+ base += 128;
+ limit = base + 255;
+ }
+
+again:
+ if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&drm_minors_idr, NULL,
+ base, &new_id);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret == -EAGAIN) {
+ goto again;
+ } else if (ret) {
+ return ret;
+ }
+
+ if (new_id >= limit) {
+ idr_remove(&drm_minors_idr, new_id);
+ return -EINVAL;
+ }
+ return new_id;
+}
+
+struct drm_master *drm_master_create(struct drm_minor *minor)
+{
+ struct drm_master *master;
+
+ master = kzalloc(sizeof(*master), GFP_KERNEL);
+ if (!master)
+ return NULL;
+
+ kref_init(&master->refcount);
+ spin_lock_init(&master->lock.spinlock);
+ init_waitqueue_head(&master->lock.lock_queue);
+ drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ INIT_LIST_HEAD(&master->magicfree);
+ master->minor = minor;
+
+ list_add_tail(&master->head, &minor->master_list);
+
+ return master;
+}
+
+struct drm_master *drm_master_get(struct drm_master *master)
+{
+ kref_get(&master->refcount);
+ return master;
+}
+EXPORT_SYMBOL(drm_master_get);
+
+static void drm_master_destroy(struct kref *kref)
+{
+ struct drm_master *master = container_of(kref, struct drm_master, refcount);
+ struct drm_magic_entry *pt, *next;
+ struct drm_device *dev = master->minor->dev;
+ struct drm_map_list *r_list, *list_temp;
+
+ list_del(&master->head);
+
+ if (dev->driver->master_destroy)
+ dev->driver->master_destroy(dev, master);
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
+ if (r_list->master == master) {
+ drm_rmmap_locked(dev, r_list->map);
+ r_list = NULL;
+ }
+ }
+
+ if (master->unique) {
+ kfree(master->unique);
+ master->unique = NULL;
+ master->unique_len = 0;
+ }
+
+ list_for_each_entry_safe(pt, next, &master->magicfree, head) {
+ list_del(&pt->head);
+ drm_ht_remove_item(&master->magiclist, &pt->hash_item);
+ kfree(pt);
+ }
+
+ drm_ht_remove(&master->magiclist);
+
+ kfree(master);
+}
+
+void drm_master_put(struct drm_master **master)
+{
+ kref_put(&(*master)->refcount, drm_master_destroy);
+ *master = NULL;
+}
+EXPORT_SYMBOL(drm_master_put);
+
+int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ int ret = 0;
+
+ if (file_priv->is_master)
+ return 0;
+
+ if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master &&
+ file_priv->minor->master != file_priv->master) {
+ mutex_lock(&dev->struct_mutex);
+ file_priv->minor->master = drm_master_get(file_priv->master);
+ file_priv->is_master = 1;
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, file_priv, false);
+ if (unlikely(ret != 0)) {
+ file_priv->is_master = 0;
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return 0;
+}
+
+int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (!file_priv->is_master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, false);
+ drm_master_put(&file_priv->minor->master);
+ file_priv->is_master = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ int retcode;
+
+ INIT_LIST_HEAD(&dev->filelist);
+ INIT_LIST_HEAD(&dev->ctxlist);
+ INIT_LIST_HEAD(&dev->vmalist);
+ INIT_LIST_HEAD(&dev->maplist);
+ INIT_LIST_HEAD(&dev->vblank_event_list);
+
+ spin_lock_init(&dev->count_lock);
+ spin_lock_init(&dev->drw_lock);
+ spin_lock_init(&dev->event_lock);
+ init_timer(&dev->timer);
+ mutex_init(&dev->struct_mutex);
+ mutex_init(&dev->ctxlist_mutex);
+
+ idr_init(&dev->drw_idr);
+
+ dev->pdev = pdev;
+ dev->pci_device = pdev->device;
+ dev->pci_vendor = pdev->vendor;
+
+#ifdef __alpha__
+ dev->hose = pdev->sysdata;
+#endif
+
+ if (drm_ht_create(&dev->map_hash, 12)) {
+ return -ENOMEM;
+ }
+
+ /* the DRM has 6 basic counters */
+ dev->counters = 6;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+
+ dev->driver = driver;
+
+ if (drm_core_has_AGP(dev)) {
+ if (drm_device_is_agp(dev))
+ dev->agp = drm_agp_init(dev);
+ if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP)
+ && (dev->agp == NULL)) {
+ DRM_ERROR("Cannot initialize the agpgart module.\n");
+ retcode = -EINVAL;
+ goto error_out_unreg;
+ }
+ if (drm_core_has_MTRR(dev)) {
+ if (dev->agp)
+ dev->agp->agp_mtrr =
+ mtrr_add(dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size *
+ 1024 * 1024, MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+
+
+ retcode = drm_ctxbitmap_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot allocate memory for context bitmap.\n");
+ goto error_out_unreg;
+ }
+
+ if (driver->driver_features & DRIVER_GEM) {
+ retcode = drm_gem_init(dev);
+ if (retcode) {
+ DRM_ERROR("Cannot initialize graphics execution "
+ "manager (GEM)\n");
+ goto error_out_unreg;
+ }
+ }
+
+ return 0;
+
+ error_out_unreg:
+ drm_lastclose(dev);
+ return retcode;
+}
+
+
+/**
+ * Get a secondary minor number.
+ *
+ * \param dev device data structure
+ * \param sec-minor structure to hold the assigned minor
+ * \return negative number on failure.
+ *
+ * Search an empty entry and initialize it to the given parameters, and
+ * create the proc init entry via proc_init(). This routines assigns
+ * minor numbers to secondary heads of multi-headed cards
+ */
+static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
+{
+ struct drm_minor *new_minor;
+ int ret;
+ int minor_id;
+
+ DRM_DEBUG("\n");
+
+ minor_id = drm_minor_get_id(dev, type);
+ if (minor_id < 0)
+ return minor_id;
+
+ new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
+ if (!new_minor) {
+ ret = -ENOMEM;
+ goto err_idr;
+ }
+
+ new_minor->type = type;
+ new_minor->device = MKDEV(DRM_MAJOR, minor_id);
+ new_minor->dev = dev;
+ new_minor->index = minor_id;
+ INIT_LIST_HEAD(&new_minor->master_list);
+
+ idr_replace(&drm_minors_idr, new_minor, minor_id);
+
+ if (type == DRM_MINOR_LEGACY) {
+ ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
+ goto err_mem;
+ }
+ } else
+ new_minor->proc_root = NULL;
+
+#if defined(CONFIG_DEBUG_FS)
+ ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
+ goto err_g2;
+ }
+#endif
+
+ ret = drm_sysfs_device_add(new_minor);
+ if (ret) {
+ printk(KERN_ERR
+ "DRM: Error sysfs_device_add.\n");
+ goto err_g2;
+ }
+ *minor = new_minor;
+
+ DRM_DEBUG("new minor assigned %d\n", minor_id);
+ return 0;
+
+
+err_g2:
+ if (new_minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(new_minor, drm_proc_root);
+err_mem:
+ kfree(new_minor);
+err_idr:
+ idr_remove(&drm_minors_idr, minor_id);
+ *minor = NULL;
+ return ret;
+}
+
+/**
+ * Register.
+ *
+ * \param pdev - PCI device structure
+ * \param ent entry from the PCI ID table with device type flags
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to gets inter module "drm" information. If we are first
+ * then register the character device and inter module information.
+ * Try and register, if we fail to register, backout previous work.
+ */
+int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ struct drm_device *dev;
+ int ret;
+
+ DRM_DEBUG("\n");
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_g1;
+
+ pci_set_master(pdev);
+ if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) {
+ printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
+ goto err_g2;
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ pci_set_drvdata(pdev, dev);
+ ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
+ if (ret)
+ goto err_g2;
+ }
+
+ if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
+ goto err_g3;
+
+ if (dev->driver->load) {
+ ret = dev->driver->load(dev, ent->driver_data);
+ if (ret)
+ goto err_g4;
+ }
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
+ if (ret)
+ goto err_g4;
+ }
+
+ list_add_tail(&dev->driver_item, &driver->device_list);
+
+ DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
+ driver->name, driver->major, driver->minor, driver->patchlevel,
+ driver->date, pci_name(pdev), dev->primary->index);
+
+ return 0;
+
+err_g4:
+ drm_put_minor(&dev->primary);
+err_g3:
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+err_g2:
+ pci_disable_device(pdev);
+err_g1:
+ kfree(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_get_dev);
+
+/**
+ * Put a secondary minor number.
+ *
+ * \param sec_minor - structure to be released
+ * \return always zero
+ *
+ * Cleans up the proc resources. Not legal for this to be the
+ * last minor released.
+ *
+ */
+int drm_put_minor(struct drm_minor **minor_p)
+{
+ struct drm_minor *minor = *minor_p;
+
+ DRM_DEBUG("release secondary minor %d\n", minor->index);
+
+ if (minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(minor, drm_proc_root);
+#if defined(CONFIG_DEBUG_FS)
+ drm_debugfs_cleanup(minor);
+#endif
+
+ drm_sysfs_device_remove(minor);
+
+ idr_remove(&drm_minors_idr, minor->index);
+
+ kfree(minor);
+ *minor_p = NULL;
+ return 0;
+}
+
+/**
+ * Called via drm_exit() at module unload time or when pci device is
+ * unplugged.
+ *
+ * Cleans up all DRM device, calling drm_lastclose().
+ *
+ * \sa drm_init
+ */
+void drm_put_dev(struct drm_device *dev)
+{
+ struct drm_driver *driver;
+ struct drm_map_list *r_list, *list_temp;
+
+ DRM_DEBUG("\n");
+
+ if (!dev) {
+ DRM_ERROR("cleanup called no dev\n");
+ return;
+ }
+ driver = dev->driver;
+
+ drm_vblank_cleanup(dev);
+
+ drm_lastclose(dev);
+
+ if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->agp_mtrr >= 0) {
+ int retval;
+ retval = mtrr_del(dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size * 1024 * 1024);
+ DRM_DEBUG("mtrr_del=%d\n", retval);
+ }
+
+ if (dev->driver->unload)
+ dev->driver->unload(dev);
+
+ if (drm_core_has_AGP(dev) && dev->agp) {
+ kfree(dev->agp);
+ dev->agp = NULL;
+ }
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+ drm_rmmap(dev, r_list->map);
+ drm_ht_remove(&dev->map_hash);
+
+ drm_ctxbitmap_cleanup(dev);
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+
+ if (driver->driver_features & DRIVER_GEM)
+ drm_gem_destroy(dev);
+
+ drm_put_minor(&dev->primary);
+
+ if (dev->devname) {
+ kfree(dev->devname);
+ dev->devname = NULL;
+ }
+ kfree(dev);
+}
+EXPORT_SYMBOL(drm_put_dev);
--- /dev/null
+
+/*
+ * drm_sysfs.c - Modifications to drm_sysfs_class.c to support
+ * extra sysfs attribute from DRM. Normal drm_sysfs_class
+ * does not allow adding attributes.
+ *
+ * Copyright (c) 2004 Jon Smirl <jonsmirl@gmail.com>
+ * Copyright (c) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2003-2004 IBM Corp.
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+#include <linux/err.h>
+
+#include "drm_sysfs.h"
+#include "drm_core.h"
+#include "drmP.h"
+
+#define to_drm_minor(d) container_of(d, struct drm_minor, kdev)
+#define to_drm_connector(d) container_of(d, struct drm_connector, kdev)
+
+static struct device_type drm_sysfs_device_minor = {
+ .name = "drm_minor"
+};
+
+/**
+ * drm_class_suspend - DRM class suspend hook
+ * @dev: Linux device to suspend
+ * @state: power state to enter
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its suspend hook, if present.
+ */
+static int drm_class_suspend(struct device *dev, pm_message_t state)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->suspend)
+ return drm_dev->driver->suspend(drm_dev, state);
+ }
+ return 0;
+}
+
+/**
+ * drm_class_resume - DRM class resume hook
+ * @dev: Linux device to resume
+ *
+ * Just figures out what the actual struct drm_device associated with
+ * @dev is and calls its resume hook, if present.
+ */
+static int drm_class_resume(struct device *dev)
+{
+ if (dev->type == &drm_sysfs_device_minor) {
+ struct drm_minor *drm_minor = to_drm_minor(dev);
+ struct drm_device *drm_dev = drm_minor->dev;
+
+ if (drm_minor->type == DRM_MINOR_LEGACY &&
+ !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+ drm_dev->driver->resume)
+ return drm_dev->driver->resume(drm_dev);
+ }
+ return 0;
+}
+
+/* Display the version of drm_core. This doesn't work right in current design */
+static ssize_t version_show(struct class *dev, char *buf)
+{
+ return sprintf(buf, "%s %d.%d.%d %s\n", CORE_NAME, CORE_MAJOR,
+ CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+}
+
+static char *drm_devnode(struct device *dev, mode_t *mode)
+{
+ return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
+}
+
+static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
+
+/**
+ * drm_sysfs_create - create a struct drm_sysfs_class structure
+ * @owner: pointer to the module that is to "own" this struct drm_sysfs_class
+ * @name: pointer to a string for the name of this class.
+ *
+ * This is used to create DRM class pointer that can then be used
+ * in calls to drm_sysfs_device_add().
+ *
+ * Note, the pointer created here is to be destroyed when finished by making a
+ * call to drm_sysfs_destroy().
+ */
+struct class *drm_sysfs_create(struct module *owner, char *name)
+{
+ struct class *class;
+ int err;
+
+ class = class_create(owner, name);
+ if (IS_ERR(class)) {
+ err = PTR_ERR(class);
+ goto err_out;
+ }
+
+ class->suspend = drm_class_suspend;
+ class->resume = drm_class_resume;
+
+ err = class_create_file(class, &class_attr_version);
+ if (err)
+ goto err_out_class;
+
+ class->devnode = drm_devnode;
+
+ return class;
+
+err_out_class:
+ class_destroy(class);
+err_out:
+ return ERR_PTR(err);
+}
+
+/**
+ * drm_sysfs_destroy - destroys DRM class
+ *
+ * Destroy the DRM device class.
+ */
+void drm_sysfs_destroy(void)
+{
+ if ((drm_class == NULL) || (IS_ERR(drm_class)))
+ return;
+ class_remove_file(drm_class, &class_attr_version);
+ class_destroy(drm_class);
+}
+
+/**
+ * drm_sysfs_device_release - do nothing
+ * @dev: Linux device
+ *
+ * Normally, this would free the DRM device associated with @dev, along
+ * with cleaning up any other stuff. But we do that in the DRM core, so
+ * this function can just return and hope that the core does its job.
+ */
+static void drm_sysfs_device_release(struct device *dev)
+{
+ memset(dev, 0, sizeof(struct device));
+ return;
+}
+
+/*
+ * Connector properties
+ */
+static ssize_t status_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ enum drm_connector_status status;
+
+ status = connector->funcs->detect(connector);
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_connector_status_name(status));
+}
+
+static ssize_t dpms_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ uint64_t dpms_status;
+ int ret;
+
+ ret = drm_connector_property_get_value(connector,
+ dev->mode_config.dpms_property,
+ &dpms_status);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ drm_get_dpms_name((int)dpms_status));
+}
+
+static ssize_t enabled_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", connector->encoder ? "enabled" :
+ "disabled");
+}
+
+static ssize_t edid_show(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct device *connector_dev = container_of(kobj, struct device, kobj);
+ struct drm_connector *connector = to_drm_connector(connector_dev);
+ unsigned char *edid;
+ size_t size;
+
+ if (!connector->edid_blob_ptr)
+ return 0;
+
+ edid = connector->edid_blob_ptr->data;
+ size = connector->edid_blob_ptr->length;
+ if (!edid)
+ return 0;
+
+ if (off >= size)
+ return 0;
+
+ if (off + count > size)
+ count = size - off;
+ memcpy(buf, edid + off, count);
+
+ return count;
+}
+
+static ssize_t modes_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_display_mode *mode;
+ int written = 0;
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ written += snprintf(buf + written, PAGE_SIZE - written, "%s\n",
+ mode->name);
+ }
+
+ return written;
+}
+
+static ssize_t subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_subconnector_name((int)subconnector) :
+ drm_get_dvi_i_subconnector_name((int)subconnector));
+}
+
+static ssize_t select_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop = NULL;
+ uint64_t subconnector;
+ int is_tv = 0;
+ int ret;
+
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ prop = dev->mode_config.dvi_i_select_subconnector_property;
+ break;
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ prop = dev->mode_config.tv_select_subconnector_property;
+ is_tv = 1;
+ break;
+ default:
+ DRM_ERROR("Wrong connector type for this property\n");
+ return 0;
+ }
+
+ if (!prop) {
+ DRM_ERROR("Unable to find select subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_connector_property_get_value(connector, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
+ drm_get_tv_select_name((int)subconnector) :
+ drm_get_dvi_i_select_name((int)subconnector));
+}
+
+static struct device_attribute connector_attrs[] = {
+ __ATTR_RO(status),
+ __ATTR_RO(enabled),
+ __ATTR_RO(dpms),
+ __ATTR_RO(modes),
+};
+
+/* These attributes are for both DVI-I connectors and all types of tv-out. */
+static struct device_attribute connector_attrs_opt1[] = {
+ __ATTR_RO(subconnector),
+ __ATTR_RO(select_subconnector),
+};
+
+static struct bin_attribute edid_attr = {
+ .attr.name = "edid",
+ .attr.mode = 0444,
+ .size = 128,
+ .read = edid_show,
+};
+
+/**
+ * drm_sysfs_connector_add - add an connector to sysfs
+ * @connector: connector to add
+ *
+ * Create an connector device in sysfs, along with its associated connector
+ * properties (so far, connection status, dpms, mode list & edid) and
+ * generate a hotplug event so userspace knows there's a new connector
+ * available.
+ *
+ * Note:
+ * This routine should only be called *once* for each DRM minor registered.
+ * A second call for an already registered device will trigger the BUG_ON
+ * below.
+ */
+int drm_sysfs_connector_add(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ int ret = 0, i, j;
+
+ /* We shouldn't get called more than once for the same connector */
+ BUG_ON(device_is_registered(&connector->kdev));
+
+ connector->kdev.parent = &dev->primary->kdev;
+ connector->kdev.class = drm_class;
+ connector->kdev.release = drm_sysfs_device_release;
+
+ DRM_DEBUG("adding \"%s\" to sysfs\n",
+ drm_get_connector_name(connector));
+
+ dev_set_name(&connector->kdev, "card%d-%s",
+ dev->primary->index, drm_get_connector_name(connector));
+ ret = device_register(&connector->kdev);
+
+ if (ret) {
+ DRM_ERROR("failed to register connector device: %d\n", ret);
+ goto out;
+ }
+
+ /* Standard attributes */
+
+ for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs[i]);
+ if (ret)
+ goto err_out_files;
+ }
+
+ /* Optional attributes */
+ /*
+ * In the long run it maybe a good idea to make one set of
+ * optionals per connector type.
+ */
+ switch (connector->connector_type) {
+ case DRM_MODE_CONNECTOR_DVII:
+ case DRM_MODE_CONNECTOR_Composite:
+ case DRM_MODE_CONNECTOR_SVIDEO:
+ case DRM_MODE_CONNECTOR_Component:
+ case DRM_MODE_CONNECTOR_TV:
+ for (i = 0; i < ARRAY_SIZE(connector_attrs_opt1); i++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs_opt1[i]);
+ if (ret)
+ goto err_out_files;
+ }
+ break;
+ default:
+ break;
+ }
+
+ ret = sysfs_create_bin_file(&connector->kdev.kobj, &edid_attr);
+ if (ret)
+ goto err_out_files;
+
+ /* Let userspace know we have a new connector */
+ drm_sysfs_hotplug_event(dev);
+
+ return 0;
+
+err_out_files:
+ if (i > 0)
+ for (j = 0; j < i; j++)
+ device_remove_file(&connector->kdev,
+ &connector_attrs[i]);
+ device_unregister(&connector->kdev);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(drm_sysfs_connector_add);
+
+/**
+ * drm_sysfs_connector_remove - remove an connector device from sysfs
+ * @connector: connector to remove
+ *
+ * Remove @connector and its associated attributes from sysfs. Note that
+ * the device model core will take care of sending the "remove" uevent
+ * at this time, so we don't need to do it.
+ *
+ * Note:
+ * This routine should only be called if the connector was previously
+ * successfully registered. If @connector hasn't been registered yet,
+ * you'll likely see a panic somewhere deep in sysfs code when called.
+ */
+void drm_sysfs_connector_remove(struct drm_connector *connector)
+{
+ int i;
+
+ DRM_DEBUG("removing \"%s\" from sysfs\n",
+ drm_get_connector_name(connector));
+
+ for (i = 0; i < ARRAY_SIZE(connector_attrs); i++)
+ device_remove_file(&connector->kdev, &connector_attrs[i]);
+ sysfs_remove_bin_file(&connector->kdev.kobj, &edid_attr);
+ device_unregister(&connector->kdev);
+}
+EXPORT_SYMBOL(drm_sysfs_connector_remove);
+
+/**
+ * drm_sysfs_hotplug_event - generate a DRM uevent
+ * @dev: DRM device
+ *
+ * Send a uevent for the DRM device specified by @dev. Currently we only
+ * set HOTPLUG=1 in the uevent environment, but this could be expanded to
+ * deal with other types of events.
+ */
+void drm_sysfs_hotplug_event(struct drm_device *dev)
+{
+ char *event_string = "HOTPLUG=1";
+ char *envp[] = { event_string, NULL };
+
+ DRM_DEBUG("generating hotplug event\n");
+
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
+}
+EXPORT_SYMBOL(drm_sysfs_hotplug_event);
+
+/**
+ * drm_sysfs_device_add - adds a class device to sysfs for a character driver
+ * @dev: DRM device to be added
+ * @head: DRM head in question
+ *
+ * Add a DRM device to the DRM's device model class. We use @dev's PCI device
+ * as the parent for the Linux device, and make sure it has a file containing
+ * the driver we're using (for userspace compatibility).
+ */
+int drm_sysfs_device_add(struct drm_minor *minor)
+{
+ int err;
+ char *minor_str;
+
+ minor->kdev.parent = &minor->dev->pdev->dev;
+ minor->kdev.class = drm_class;
+ minor->kdev.release = drm_sysfs_device_release;
+ minor->kdev.devt = minor->device;
+ minor->kdev.type = &drm_sysfs_device_minor;
+ if (minor->type == DRM_MINOR_CONTROL)
+ minor_str = "controlD%d";
+ else if (minor->type == DRM_MINOR_RENDER)
+ minor_str = "renderD%d";
+ else
+ minor_str = "card%d";
+
+ dev_set_name(&minor->kdev, minor_str, minor->index);
+
+ err = device_register(&minor->kdev);
+ if (err) {
+ DRM_ERROR("device add failed: %d\n", err);
+ goto err_out;
+ }
+
+ return 0;
+
+err_out:
+ return err;
+}
+
+/**
+ * drm_sysfs_device_remove - remove DRM device
+ * @dev: DRM device to remove
+ *
+ * This call unregisters and cleans up a class device that was created with a
+ * call to drm_sysfs_device_add()
+ */
+void drm_sysfs_device_remove(struct drm_minor *minor)
+{
+ device_unregister(&minor->kdev);
+}
+
+
+/**
+ * drm_class_device_register - Register a struct device in the drm class.
+ *
+ * @dev: pointer to struct device to register.
+ *
+ * @dev should have all relevant members pre-filled with the exception
+ * of the class member. In particular, the device_type member must
+ * be set.
+ */
+
+int drm_class_device_register(struct device *dev)
+{
+ dev->class = drm_class;
+ return device_register(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_register);
+
+void drm_class_device_unregister(struct device *dev)
+{
+ return device_unregister(dev);
+}
+EXPORT_SYMBOL_GPL(drm_class_device_unregister);
--- /dev/null
+/**
+ * \file drm_vm.c
+ * Memory mapping for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#if defined(__ia64__)
+#include <linux/efi.h>
+#endif
+
+static void drm_vm_open(struct vm_area_struct *vma);
+static void drm_vm_close(struct vm_area_struct *vma);
+
+static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__i386__) || defined(__x86_64__)
+ if (boot_cpu_data.x86 > 3 && map_type != _DRM_AGP) {
+ pgprot_val(tmp) |= _PAGE_PCD;
+ pgprot_val(tmp) &= ~_PAGE_PWT;
+ }
+#elif defined(__powerpc__)
+ pgprot_val(tmp) |= _PAGE_NO_CACHE;
+ if (map_type == _DRM_REGISTERS)
+ pgprot_val(tmp) |= _PAGE_GUARDED;
+#elif defined(__ia64__)
+ if (efi_range_is_wc(vma->vm_start, vma->vm_end -
+ vma->vm_start))
+ tmp = pgprot_writecombine(tmp);
+ else
+ tmp = pgprot_noncached(tmp);
+#elif defined(__sparc__)
+ tmp = pgprot_noncached(tmp);
+#endif
+ return tmp;
+}
+
+static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
+{
+ pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
+
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+ tmp |= _PAGE_NO_CACHE;
+#endif
+ return tmp;
+}
+
+/**
+ * \c fault method for AGP virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Find the right map and if it's AGP memory find the real physical page to
+ * map, get the page, increment the use count and return it.
+ */
+#if __OS_HAS_AGP
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ struct drm_hash_item *hash;
+
+ /*
+ * Find the right map
+ */
+ if (!drm_core_has_AGP(dev))
+ goto vm_fault_error;
+
+ if (!dev->agp || !dev->agp->cant_use_aperture)
+ goto vm_fault_error;
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash))
+ goto vm_fault_error;
+
+ r_list = drm_hash_entry(hash, struct drm_map_list, hash);
+ map = r_list->map;
+
+ if (map && map->type == _DRM_AGP) {
+ /*
+ * Using vm_pgoff as a selector forces us to use this unusual
+ * addressing scheme.
+ */
+ resource_size_t offset = (unsigned long)vmf->virtual_address -
+ vma->vm_start;
+ resource_size_t baddr = map->offset + offset;
+ struct drm_agp_mem *agpmem;
+ struct page *page;
+
+#ifdef __alpha__
+ /*
+ * Adjust to a bus-relative address
+ */
+ baddr -= dev->hose->mem_space->start;
+#endif
+
+ /*
+ * It's AGP memory - find the real physical page to map
+ */
+ list_for_each_entry(agpmem, &dev->agp->memory, head) {
+ if (agpmem->bound <= baddr &&
+ agpmem->bound + agpmem->pages * PAGE_SIZE > baddr)
+ break;
+ }
+
+ if (!agpmem)
+ goto vm_fault_error;
+
+ /*
+ * Get the page, inc the use count, and return it
+ */
+ offset = (baddr - agpmem->bound) >> PAGE_SHIFT;
+ page = agpmem->memory->pages[offset];
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG
+ ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n",
+ (unsigned long long)baddr,
+ agpmem->memory->pages[offset],
+ (unsigned long long)offset,
+ page_count(page));
+ return 0;
+ }
+vm_fault_error:
+ return VM_FAULT_SIGBUS; /* Disallow mremap */
+}
+#else /* __OS_HAS_AGP */
+static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+#endif /* __OS_HAS_AGP */
+
+/**
+ * \c nopage method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Get the mapping, find the real physical page to map, get the page, and
+ * return it.
+ */
+static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ unsigned long offset;
+ unsigned long i;
+ struct page *page;
+
+ if (!map)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ i = (unsigned long)map->handle + offset;
+ page = vmalloc_to_page((void *)i);
+ if (!page)
+ return VM_FAULT_SIGBUS;
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("shm_fault 0x%lx\n", offset);
+ return 0;
+}
+
+/**
+ * \c close method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Deletes map information if we are the last
+ * person to close a mapping and it's not in the global maplist.
+ */
+static void drm_vm_shm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+ int found_maps = 0;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ map = vma->vm_private_data;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma->vm_private_data == map)
+ found_maps++;
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ }
+ }
+
+ /* We were the only map that was found */
+ if (found_maps == 1 && map->flags & _DRM_REMOVABLE) {
+ /* Check to see if we are in the maplist, if we are not, then
+ * we delete this mappings information.
+ */
+ found_maps = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map == map)
+ found_maps++;
+ }
+
+ if (!found_maps) {
+ drm_dma_handle_t dmah;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+ iounmap(map->handle);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * \c fault method for DMA virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the page number from the page offset and get it from drm_device_dma::pagelist.
+ */
+static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_device_dma *dma = dev->dma;
+ unsigned long offset;
+ unsigned long page_nr;
+ struct page *page;
+
+ if (!dma)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!dma->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
+ page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */
+ page = virt_to_page((dma->pagelist[page_nr] + (offset & (~PAGE_MASK))));
+
+ get_page(page);
+ vmf->page = page;
+
+ DRM_DEBUG("dma_fault 0x%lx (page %lu)\n", offset, page_nr);
+ return 0;
+}
+
+/**
+ * \c fault method for scatter-gather virtual memory.
+ *
+ * \param vma virtual memory area.
+ * \param address access address.
+ * \return pointer to the page structure.
+ *
+ * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
+ */
+static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct drm_local_map *map = vma->vm_private_data;
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long offset;
+ unsigned long map_offset;
+ unsigned long page_offset;
+ struct page *page;
+
+ if (!entry)
+ return VM_FAULT_SIGBUS; /* Error */
+ if (!entry->pagelist)
+ return VM_FAULT_SIGBUS; /* Nothing allocated */
+
+ offset = (unsigned long)vmf->virtual_address - vma->vm_start;
+ map_offset = map->offset - (unsigned long)dev->sg->virtual;
+ page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT);
+ page = entry->pagelist[page_offset];
+ get_page(page);
+ vmf->page = page;
+
+ return 0;
+}
+
+static int drm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_fault(vma, vmf);
+}
+
+static int drm_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_shm_fault(vma, vmf);
+}
+
+static int drm_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_dma_fault(vma, vmf);
+}
+
+static int drm_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ return drm_do_vm_sg_fault(vma, vmf);
+}
+
+/** AGP virtual memory operations */
+static const struct vm_operations_struct drm_vm_ops = {
+ .fault = drm_vm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Shared virtual memory operations */
+static const struct vm_operations_struct drm_vm_shm_ops = {
+ .fault = drm_vm_shm_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_shm_close,
+};
+
+/** DMA virtual memory operations */
+static const struct vm_operations_struct drm_vm_dma_ops = {
+ .fault = drm_vm_dma_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/** Scatter-gather virtual memory operations */
+static const struct vm_operations_struct drm_vm_sg_ops = {
+ .fault = drm_vm_sg_fault,
+ .open = drm_vm_open,
+ .close = drm_vm_close,
+};
+
+/**
+ * \c open method for shared virtual memory.
+ *
+ * \param vma virtual memory area.
+ *
+ * Create a new drm_vma_entry structure as the \p vma private data entry and
+ * add it to drm_device::vmalist.
+ */
+void drm_vm_open_locked(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *vma_entry;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_inc(&dev->vma_count);
+
+ vma_entry = kmalloc(sizeof(*vma_entry), GFP_KERNEL);
+ if (vma_entry) {
+ vma_entry->vma = vma;
+ vma_entry->pid = current->pid;
+ list_add(&vma_entry->head, &dev->vmalist);
+ }
+}
+
+static void drm_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_vm_open_locked(vma);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * \c close method for all virtual memory types.
+ *
+ * \param vma virtual memory area.
+ *
+ * Search the \p vma private data entry in drm_device::vmalist, unlink it, and
+ * free it.
+ */
+static void drm_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_file *priv = vma->vm_file->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_vma_entry *pt, *temp;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_dec(&dev->vma_count);
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
+ if (pt->vma == vma) {
+ list_del(&pt->head);
+ kfree(pt);
+ break;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * Sets the virtual memory area operations structure to vm_dma_ops, the file
+ * pointer, and calls vm_open().
+ */
+static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev;
+ struct drm_device_dma *dma;
+ unsigned long length = vma->vm_end - vma->vm_start;
+
+ dev = priv->minor->dev;
+ dma = dev->dma;
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ /* Length must match exact page count */
+ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
+ return -EINVAL;
+ }
+
+ if (!capable(CAP_SYS_ADMIN) &&
+ (dma->flags & _DRM_DMA_USE_PCI_RO)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ vma->vm_ops = &drm_vm_dma_ops;
+
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+resource_size_t drm_core_get_map_ofs(struct drm_local_map * map)
+{
+ return map->offset;
+}
+
+EXPORT_SYMBOL(drm_core_get_map_ofs);
+
+resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
+{
+#ifdef __alpha__
+ return dev->hose->dense_mem_base - dev->hose->mem_space->start;
+#else
+ return 0;
+#endif
+}
+
+EXPORT_SYMBOL(drm_core_get_reg_ofs);
+
+/**
+ * mmap DMA memory.
+ *
+ * \param file_priv DRM file private.
+ * \param vma virtual memory area.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the virtual memory area has no offset associated with it then it's a DMA
+ * area, so calls mmap_dma(). Otherwise searches the map in drm_device::maplist,
+ * checks that the restricted flag is not set, sets the virtual memory operations
+ * according to the mapping type and remaps the pages. Finally sets the file
+ * pointer and calls vm_open().
+ */
+int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_local_map *map = NULL;
+ resource_size_t offset = 0;
+ struct drm_hash_item *hash;
+
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, vma->vm_pgoff);
+
+ if (!priv->authenticated)
+ return -EACCES;
+
+ /* We check for "dma". On Apple's UniNorth, it's valid to have
+ * the AGP mapped at physical address 0
+ * --BenH.
+ */
+ if (!vma->vm_pgoff
+#if __OS_HAS_AGP
+ && (!dev->agp
+ || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE)
+#endif
+ )
+ return drm_mmap_dma(filp, vma);
+
+ if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) {
+ DRM_ERROR("Could not find map\n");
+ return -EINVAL;
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
+ return -EPERM;
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
+ vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+#if defined(__i386__) || defined(__x86_64__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot =
+ __pgprot(pte_val
+ (pte_wrprotect
+ (__pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ switch (map->type) {
+ case _DRM_AGP:
+ if (drm_core_has_AGP(dev) && dev->agp->cant_use_aperture) {
+ /*
+ * On some platforms we can't talk to bus dma address from the CPU, so for
+ * memory of type DRM_AGP, we'll deal with sorting out the real physical
+ * pages and mappings in fault()
+ */
+#if defined(__powerpc__)
+ pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+#endif
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ }
+ /* fall through to _DRM_FRAME_BUFFER... */
+ case _DRM_FRAME_BUFFER:
+ case _DRM_REGISTERS:
+ offset = dev->driver->get_reg_ofs(dev);
+ vma->vm_flags |= VM_IO; /* not in core dump */
+ vma->vm_page_prot = drm_io_prot(map->type, vma);
+ if (io_remap_pfn_range(vma, vma->vm_start,
+ (map->offset + offset) >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+ DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
+ " offset = 0x%llx\n",
+ map->type,
+ vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset));
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ case _DRM_CONSISTENT:
+ /* Consistent memory is really like shared memory. But
+ * it's allocated in a different way, so avoid fault */
+ if (remap_pfn_range(vma, vma->vm_start,
+ page_to_pfn(virt_to_page(map->handle)),
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ /* fall through to _DRM_SHM */
+ case _DRM_SHM:
+ vma->vm_ops = &drm_vm_shm_ops;
+ vma->vm_private_data = (void *)map;
+ /* Don't let this area swap. Change when
+ DRM_KERNEL advisory is supported. */
+ vma->vm_flags |= VM_RESERVED;
+ break;
+ case _DRM_SCATTER_GATHER:
+ vma->vm_ops = &drm_vm_sg_ops;
+ vma->vm_private_data = (void *)map;
+ vma->vm_flags |= VM_RESERVED;
+ vma->vm_page_prot = drm_dma_prot(map->type, vma);
+ break;
+ default:
+ return -EINVAL; /* This should never happen. */
+ }
+ vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
+
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ drm_vm_open_locked(vma);
+ return 0;
+}
+
+int drm_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_mmap_locked(filp, vma);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mmap);
*
******************************************************************************/
-#ifndef _SGXCORETYPES_KM_H_
-#define _SGXCORETYPES_KM_H_
+#ifndef __PVR_DRM_MOD_H__
+#define __PVR_DRM_MOD_H__
-typedef enum
-{
- SGX_CORE_ID_INVALID = 0,
- SGX_CORE_ID_530 = 2,
- SGX_CORE_ID_535 = 3,
-} SGX_CORE_ID_TYPE;
+int drm_pvr_dev_add(void);
-typedef struct _SGX_CORE_INFO
-{
- SGX_CORE_ID_TYPE eID;
- IMG_UINT32 uiRev;
-} SGX_CORE_INFO, *PSGX_CORE_INFO;
-
-#endif
+void drm_pvr_dev_remove(void);
+#endif
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <asm/system.h>
+
+#include "pvr_drm_mod.h"
+
+#define DRV_MSG_PREFIX_STR "pvr drm: "
+
+#define SGX_VENDOR_ID 1
+#define SGX_DEVICE_ID 1
+#define SGX_SUB_VENDOR_ID 1
+#define SGX_SUB_DEVICE_ID 1
+
+#if defined(DEBUG)
+#define DEBUG_PRINTK(format, args...) printk(format, ## args)
+#else
+#define DEBUG_PRINTK(format, args...)
+#endif
+
+#define CLEAR_STRUCT(x) memset(&(x), 0, sizeof(x))
+
+static struct pci_bus pvr_pci_bus;
+static struct pci_dev pvr_pci_dev;
+
+static bool bDeviceIsRegistered;
+
+static void
+release_device(struct device *dev)
+{
+}
+
+int
+drm_pvr_dev_add(void)
+{
+ int ret;
+
+ DEBUG_PRINTK(KERN_INFO DRV_MSG_PREFIX_STR "%s\n", __FUNCTION__);
+
+ if (bDeviceIsRegistered)
+ {
+ DEBUG_PRINTK(KERN_WARNING DRV_MSG_PREFIX_STR "%s: Device already registered\n", __FUNCTION__);
+ return 0;
+ }
+
+
+ pvr_pci_dev.vendor = SGX_VENDOR_ID;
+ pvr_pci_dev.device = SGX_DEVICE_ID;
+ pvr_pci_dev.subsystem_vendor = SGX_SUB_VENDOR_ID;
+ pvr_pci_dev.subsystem_device = SGX_SUB_DEVICE_ID;
+
+
+ pvr_pci_dev.bus = &pvr_pci_bus;
+
+ dev_set_name(&pvr_pci_dev.dev, "%s", "SGX");
+ pvr_pci_dev.dev.release = release_device;
+
+ ret = device_register(&pvr_pci_dev.dev);
+ if (ret != 0)
+ {
+ printk(KERN_ERR DRV_MSG_PREFIX_STR "%s: device_register failed (%d)\n", __FUNCTION__, ret);
+ }
+
+ bDeviceIsRegistered = true;
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_pvr_dev_add);
+
+void
+drm_pvr_dev_remove(void)
+{
+ DEBUG_PRINTK(KERN_INFO DRV_MSG_PREFIX_STR "%s\n", __FUNCTION__);
+
+ if (bDeviceIsRegistered)
+ {
+ DEBUG_PRINTK(KERN_INFO DRV_MSG_PREFIX_STR "%s: Unregistering device\n", __FUNCTION__);
+
+ device_unregister(&pvr_pci_dev.dev);
+ bDeviceIsRegistered = false;
+
+
+ CLEAR_STRUCT(pvr_pci_dev);
+ CLEAR_STRUCT(pvr_pci_bus);
+ }
+ else
+ {
+ DEBUG_PRINTK(KERN_WARNING DRV_MSG_PREFIX_STR "%s: Device not registered\n", __FUNCTION__);
+ }
+}
+EXPORT_SYMBOL(drm_pvr_dev_remove);
+
+void
+pci_disable_device(struct pci_dev *dev)
+{
+}
+
+struct pci_dev *
+pci_dev_get(struct pci_dev *dev)
+{
+ return dev;
+}
+
+void
+pci_set_master(struct pci_dev *dev)
+{
+}
+
+#define PCI_ID_COMP(field, value) (((value) == PCI_ANY_ID) || \
+ ((field) == (value)))
+
+struct pci_dev *
+pci_get_subsys(unsigned int vendor, unsigned int device,
+ unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from)
+{
+ if (from == NULL &&
+ PCI_ID_COMP(pvr_pci_dev.vendor, vendor) &&
+ PCI_ID_COMP(pvr_pci_dev.device, device) &&
+ PCI_ID_COMP(pvr_pci_dev.subsystem_vendor, ss_vendor) &&
+ PCI_ID_COMP(pvr_pci_dev.subsystem_device, ss_device))
+ {
+ DEBUG_PRINTK(KERN_INFO DRV_MSG_PREFIX_STR "%s: Found %x %x %x %x\n", __FUNCTION__, vendor, device, ss_vendor, ss_device);
+
+ return &pvr_pci_dev;
+ }
+
+ if (from == NULL)
+ {
+ DEBUG_PRINTK(KERN_INFO DRV_MSG_PREFIX_STR "%s: Couldn't find %x %x %x %x\n", __FUNCTION__, vendor, device, ss_vendor, ss_device);
+ }
+
+ return NULL;
+}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34))
+int
+pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+{
+ return 0;
+}
+#endif
+
+void
+pci_unregister_driver(struct pci_driver *drv)
+{
+}
+
+int
+__pci_register_driver(struct pci_driver *drv, struct module *owner,
+ const char *mod_name)
+{
+ return 0;
+}
+
+int
+pci_enable_device(struct pci_dev *dev)
+{
+ return 0;
+}
+
+void
+__bad_cmpxchg(volatile void *ptr, int size)
+{
+ printk(KERN_ERR DRV_MSG_PREFIX_STR "%s: ptr %p size %u\n",
+ __FUNCTION__, ptr, size);
+}
+
#if defined(FIX_HW_BRN_29823)
IMG_HANDLE hKernelDummyTermStreamMemInfo;
#endif
+
+#if defined(FIX_HW_BRN_31542)
+ IMG_HANDLE hKernelClearClipWAVDMStreamMemInfo;
+ IMG_HANDLE hKernelClearClipWAIndexStreamMemInfo;
+ IMG_HANDLE hKernelClearClipWAPDSMemInfo;
+ IMG_HANDLE hKernelClearClipWAUSEMemInfo;
+ IMG_HANDLE hKernelClearClipWAParamMemInfo;
+ IMG_HANDLE hKernelClearClipWAPMPTMemInfo;
+ IMG_HANDLE hKernelClearClipWADPMLSSMemInfo;
+ IMG_HANDLE hKernelClearClipWATPCMemInfo;
+ IMG_HANDLE hKernelClearClipWAPSGRgnHdrMemInfo;
+ IMG_HANDLE hKernelClearClipWAPartiPIMMemInfo;
+#endif
+
#if defined(PVRSRV_USSE_EDM_STATUS_DEBUG)
IMG_HANDLE hKernelEDMStatusBufferMemInfo;
#endif
#if (defined(NO_HARDWARE) || defined(PDUMP))
IMG_BOOL bTerminateOrAbort;
#endif
+ IMG_BOOL bLastInScene;
IMG_UINT32 ui32CCBOffset;
goto OpFlushedComplete;
}
PVR_DPF((PVR_DBG_WARNING, "ModifyCompleteSyncOpsCallBack: waiting for current Ops to flush"));
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
} END_LOOP_UNTIL_TIMEOUT();
PVR_DPF((PVR_DBG_ERROR, "ModifyCompleteSyncOpsCallBack: timeout whilst waiting for current Ops to flush."));
}
#endif
+#if defined(FIX_HW_BRN_31542)
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAVDMStreamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAIndexStreamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPDSMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAUSEMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAParamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPMPTMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWADPMLSSMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWATPCMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPSGRgnHdrMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
+ &hDummy,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPartiPIMMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bLookupFailed = IMG_TRUE;
+ }
+#endif
+
#if defined(PVRSRV_USSE_EDM_STATUS_DEBUG)
eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
&hDummy,
}
#endif
+
+#if defined(FIX_HW_BRN_31542)
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAVDMStreamMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAVDMStreamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAIndexStreamMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAIndexStreamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPDSMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPDSMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAUSEMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAUSEMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAParamMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAParamMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPMPTMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPMPTMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWADPMLSSMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWADPMLSSMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWATPCMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWATPCMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPSGRgnHdrMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPSGRgnHdrMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+ eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
+ &psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPartiPIMMemInfo,
+ psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPartiPIMMemInfo,
+ PVRSRV_HANDLE_TYPE_MEM_INFO);
+ if (eError != PVRSRV_OK)
+ {
+ bReleaseFailed = IMG_TRUE;
+ }
+#endif
+
#if defined(PVRSRV_USSE_EDM_STATUS_DEBUG)
eError = PVRSRVLookupAndReleaseHandle(psPerProc->psHandleBase,
&psSGXDevInitPart2IN->sInitInfo.hKernelEDMStatusBufferMemInfo,
bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
#endif
+#if defined(FIX_HW_BRN_31542)
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAVDMStreamMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAIndexStreamMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPDSMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAUSEMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAParamMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPMPTMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWADPMLSSMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWATPCMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPSGRgnHdrMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+ eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelClearClipWAPartiPIMMemInfo);
+ bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
+#endif
+
#if defined(PVRSRV_USSE_EDM_STATUS_DEBUG)
eError = PVRSRVDissociateDeviceMemKM(hDevCookieInt, psSGXDevInitPart2IN->sInitInfo.hKernelEDMStatusBufferMemInfo);
bDissociateFailed |= (IMG_BOOL)(eError != PVRSRV_OK);
static IMG_UINT32 PVRSRVGetCPUFreq(IMG_VOID)
{
+
+
IMG_UINT32 ui32Time1, ui32Time2;
ui32Time1 = PVRSRVTimeNow();
IMG_VOID PVRSRVSetupMetricTimers(IMG_VOID *pvDevInfo)
{
+
IMG_UINT32 ui32Loop;
PVR_UNREFERENCED_PARAMETER(pvDevInfo);
IMG_EXPORT
-PVRSRV_ERROR IMG_CALLCONV PollForValueKM (volatile IMG_UINT32* pui32LinMemAddr,
- IMG_UINT32 ui32Value,
- IMG_UINT32 ui32Mask,
- IMG_UINT32 ui32Waitus,
- IMG_UINT32 ui32Tries)
+PVRSRV_ERROR IMG_CALLCONV PollForValueKM (volatile IMG_UINT32* pui32LinMemAddr,
+ IMG_UINT32 ui32Value,
+ IMG_UINT32 ui32Mask,
+ IMG_UINT32 ui32Timeoutus,
+ IMG_UINT32 ui32PollPeriodus,
+ IMG_BOOL bAllowPreemption)
{
{
IMG_UINT32 ui32ActualValue = 0xFFFFFFFFU;
- IMG_UINT32 uiMaxTime = ui32Tries * ui32Waitus;
+
+ if (bAllowPreemption)
+ {
+ PVR_ASSERT(ui32PollPeriodus >= 1000);
+ }
- LOOP_UNTIL_TIMEOUT(uiMaxTime)
+ LOOP_UNTIL_TIMEOUT(ui32Timeoutus)
{
ui32ActualValue = (*pui32LinMemAddr & ui32Mask);
if(ui32ActualValue == ui32Value)
{
return PVRSRV_OK;
}
- OSWaitus(ui32Waitus);
+
+ if (bAllowPreemption)
+ {
+ OSSleepms(ui32PollPeriodus / 1000);
+ }
+ else
+ {
+ OSWaitus(ui32PollPeriodus);
+ }
} END_LOOP_UNTIL_TIMEOUT();
PVR_DPF((PVR_DBG_ERROR,"PollForValueKM: Timeout. Expected 0x%x but found 0x%x (mask 0x%x).",
ui32Value, ui32ActualValue, ui32Mask));
}
-
return PVRSRV_ERROR_TIMEOUT;
}
bTimeout = IMG_FALSE;
break;
}
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
} END_LOOP_UNTIL_TIMEOUT();
if (bTimeout)
bTimeout = IMG_FALSE;
break;
}
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
} END_LOOP_UNTIL_TIMEOUT();
if (bTimeout == IMG_TRUE)
#endif
#if SGX_FEATURE_ADDRESS_SPACE_SIZE == 28
- #if defined(SUPPORT_SGX_GENERAL_MAPPING_HEAP)
+
+#if defined(SUPPORT_SGX_GENERAL_MAPPING_HEAP)
#define SGX_GENERAL_MAPPING_HEAP_BASE 0x00001000
#define SGX_GENERAL_MAPPING_HEAP_SIZE (0x01800000-0x00001000-0x00001000)
- #endif
-
+
#define SGX_GENERAL_HEAP_BASE 0x01800000
#define SGX_GENERAL_HEAP_SIZE (0x07000000-0x00001000)
+#else
+ #define SGX_GENERAL_HEAP_BASE 0x00001000
+ #define SGX_GENERAL_HEAP_SIZE (0x08800000-0x00001000-0x00001000)
+#endif
+
#define SGX_3DPARAMETERS_HEAP_BASE 0x08800000
#define SGX_3DPARAMETERS_HEAP_SIZE (0x04000000-0x00001000)
//Function to configure PLL clocks. Only required for TI814x. For other devices its taken care in u-boot.
void PLL_Clocks_Config(UWORD32 Base_Address,UWORD32 OSC_FREQ,UWORD32 N,UWORD32 M,UWORD32 M2,UWORD32 CLKCTRL_VAL)
{
- UWORD32 m2nval,mn2val,read_clkctrl,clk_out,ref_clk,clkout_dco = 0;
+ UWORD32 m2nval,mn2val,read_clkctrl;
m2nval = (M2<<16) | N;
mn2val = M;
WR_MEM_32((Base_Address+M2NDIV ),m2nval);
div_base = ioremap(SGX_TI81xx_CLK_DVDR_ADDR,0x100);
WR_MEM_32((div_base),0x0);
pll_base = ioremap(SGX_PLL_BASE,0x100);
- PLL_Clocks_Config(pll_base,OSC_0,19,800,4,ADPLLJ_CLKCRTL_HS2);
+ PLL_Clocks_Config((UWORD32)pll_base,OSC_0,19,800,4,ADPLLJ_CLKCRTL_HS2);
iounmap (div_base);
iounmap (pll_base);
}
#else
- if(cpu_is_omap3630())
+ if(cpu_is_omap3630() || cpu_is_omap44xx())
OSWriteHWReg(psDevInfo->pvRegsBaseKM, 0xFF08, 0x80000000);//OCP Bypass mode
#endif
#endif
#if !defined(NO_HARDWARE)
+
+ if (PollForValueKM(&psSGXHostCtl->ui32InitStatus,
+ PVRSRV_USSE_EDM_INIT_COMPLETE,
+ PVRSRV_USSE_EDM_INIT_COMPLETE,
+ MAX_HW_TIME_US,
+ MAX_HW_TIME_US/WAIT_TRY_COUNT,
+ IMG_FALSE) != PVRSRV_OK)
- if (PollForValueKM(&psSGXHostCtl->ui32InitStatus,
- PVRSRV_USSE_EDM_INIT_COMPLETE,
- PVRSRV_USSE_EDM_INIT_COMPLETE,
- MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+// if (PollForValueKM(&psSGXHostCtl->ui32InitStatus,
+// PVRSRV_USSE_EDM_INIT_COMPLETE,
+// PVRSRV_USSE_EDM_INIT_COMPLETE,
+// MAX_HW_TIME_US/WAIT_TRY_COUNT,
+// WAIT_TRY_COUNT) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "SGXInitialise: Wait for uKernel initialisation failed"));
#if !defined(FIX_HW_BRN_23281)
sCommandData.ui32Data[1] = psMemInfo->sDevVAddr.uiAddr;
PDUMPCOMMENT("Microkernel kick for SGXGetMiscInfo");
- eError = SGXScheduleCCBCommandKM(psDeviceNode,
+/* eError = SGXScheduleCCBCommandKM(psDeviceNode,
SGXMKIF_CMD_GETMISCINFO,
&sCommandData,
KERNEL_ID,
0);
+*/
+
+ eError = SGXScheduleCCBCommandKM(psDeviceNode,
+ SGXMKIF_CMD_GETMISCINFO,
+ &sCommandData,
+ KERNEL_ID,
+ 0,
+ IMG_FALSE);
if (eError != PVRSRV_OK)
{
psDevInfo->psSGXHostCtl->ui32BPSetClearSignal = 0;
PDUMPCOMMENT("Microkernel kick for setting a data breakpoint");
- eError = SGXScheduleCCBCommandKM(psDeviceNode,
+/* eError = SGXScheduleCCBCommandKM(psDeviceNode,
SGXMKIF_CMD_DATABREAKPOINT,
&sCommandData,
KERNEL_ID,
0);
+*/
+ eError = SGXScheduleCCBCommandKM(psDeviceNode,
+ SGXMKIF_CMD_DATABREAKPOINT,
+ &sCommandData,
+ KERNEL_ID,
+ 0,
+ IMG_FALSE);
+
if (eError != PVRSRV_OK)
{
sCommandData.ui32Data[0] = psSetHWPerfStatus->ui32NewHWPerfStatus;
- eError = SGXScheduleCCBCommandKM(psDeviceNode,
+/* eError = SGXScheduleCCBCommandKM(psDeviceNode,
SGXMKIF_CMD_SETHWPERFSTATUS,
&sCommandData,
KERNEL_ID,
0);
+*/
+ eError = SGXScheduleCCBCommandKM(psDeviceNode,
+ SGXMKIF_CMD_SETHWPERFSTATUS,
+ &sCommandData,
+ KERNEL_ID,
+ 0,
+ IMG_FALSE);
+
return eError;
}
#endif
}
#endif
- eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_TA, &psCCBKick->sCommand, KERNEL_ID, 0);
+ eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_TA, &psCCBKick->sCommand, KERNEL_ID, 0, psCCBKick->bLastInScene);
if (eError == PVRSRV_ERROR_RETRY)
{
if (psCCBKick->bFirstKickOrResume && psCCBKick->ui32NumDstSyncObjects > 0)
if (PollForValueKM((IMG_UINT32 *)psDevInfo->pvRegsBaseKM + (ui32Register >> 2),
0,
ui32RegisterValue,
+ MAX_HW_TIME_US,
MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+ IMG_FALSE) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXPollForClockGating: %s failed.", pszComment));
PVR_DBG_BREAK;
sCommand.ui32Data[1] = ui32PowerCmd;
- eError = SGXScheduleCCBCommand(psDevInfo, SGXMKIF_CMD_POWER, &sCommand, KERNEL_ID, 0);
+ eError = SGXScheduleCCBCommand(psDevInfo, SGXMKIF_CMD_POWER, &sCommand, KERNEL_ID, 0, IMG_FALSE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: Failed to submit power down command"));
if (PollForValueKM(&psDevInfo->psSGXHostCtl->ui32PowerStatus,
ui32CompleteStatus,
ui32CompleteStatus,
+ MAX_HW_TIME_US,
MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+ IMG_FALSE) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: Wait for SGX ukernel power transition failed."));
PVR_DBG_BREAK;
SGXMKIF_COMMAND sCommand = {0};
sCommand.ui32Data[1] = PVRSRV_POWERCMD_RESUME;
- eError = SGXScheduleCCBCommand(psDevInfo, SGXMKIF_CMD_POWER, &sCommand, ISR_ID, 0);
+ eError = SGXScheduleCCBCommand(psDevInfo, SGXMKIF_CMD_POWER, &sCommand, ISR_ID, 0, IMG_FALSE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXPostPowerState failed to schedule CCB command: %u", eError));
if (PollForValueKM((IMG_UINT32 *)((IMG_UINT8*)psDevInfo->pvRegsBaseKM + EUR_CR_BIF_MEM_REQ_STAT),
0,
EUR_CR_BIF_MEM_REQ_STAT_READS_MASK,
+ MAX_HW_TIME_US,
MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+ IMG_FALSE) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"Wait for DC invalidate failed."));
PVR_DBG_BREAK;
sCommand.ui32Data[1] = psKick->sHWTransferContextDevVAddr.uiAddr;
- eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_TRANSFER, &sCommand, KERNEL_ID, psKick->ui32PDumpFlags);
+ eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_TRANSFER, &sCommand, KERNEL_ID, psKick->ui32PDumpFlags, IMG_FALSE);
if (eError == PVRSRV_ERROR_RETRY)
{
sCommand.ui32Data[1] = psKick->sHW2DContextDevVAddr.uiAddr;
- eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_2D, &sCommand, KERNEL_ID, psKick->ui32PDumpFlags);
+ eError = SGXScheduleCCBCommandKM(hDevHandle, SGXMKIF_CMD_2D, &sCommand, KERNEL_ID, psKick->ui32PDumpFlags, IMG_FALSE);
if (eError == PVRSRV_ERROR_RETRY)
{
return &psCCB->psCommands[*psCCB->pui32WriteOffset];
}
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
} END_LOOP_UNTIL_TIMEOUT();
SGXMKIF_CMD_TYPE eCmdType,
SGXMKIF_COMMAND *psCommandData,
IMG_UINT32 ui32CallerID,
- IMG_UINT32 ui32PDumpFlags)
+ IMG_UINT32 ui32PDumpFlags,
+ IMG_BOOL bLastInScene)
{
PVRSRV_SGX_CCB_INFO *psKernelCCB;
PVRSRV_ERROR eError = PVRSRV_OK;
SGXMKIF_COMMAND *psSGXCommand;
- SYS_DATA *psSysData;
#if defined(PDUMP)
IMG_VOID *pvDumpCommand;
IMG_BOOL bPDumpIsSuspended = PDumpIsSuspended();
SGXMKIF_CMD_PROCESS_QUEUES,
&sCacheCommand,
ui32CallerID,
- ui32PDumpFlags);
+ ui32PDumpFlags,
+ bLastInScene);
if (eError != PVRSRV_OK)
{
goto Exit;
if(PollForValueKM(&psSGXHostCtl->ui32InvalStatus,
PVRSRV_USSE_EDM_BIF_INVAL_COMPLETE,
PVRSRV_USSE_EDM_BIF_INVAL_COMPLETE,
- 2 * MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+ 2 * MAX_HW_TIME_US,
+ MAX_HW_TIME_US/WAIT_TRY_COUNT,
+ IMG_FALSE) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXScheduleCCBCommand: Wait for uKernel to Invalidate BIF cache failed"));
PVR_DBG_BREAK;
goto Exit;
}
-
- SysAcquireData(&psSysData);
-
- if(psSysData->ePendingCacheOpType == PVRSRV_MISC_INFO_CPUCACHEOP_FLUSH)
- {
- OSFlushCPUCacheKM();
- }
- else if(psSysData->ePendingCacheOpType == PVRSRV_MISC_INFO_CPUCACHEOP_CLEAN)
+ if((eCmdType == SGXMKIF_CMD_TA) && bLastInScene)
{
- OSCleanCPUCacheKM();
- }
+ SYS_DATA *psSysData;
-
- psSysData->ePendingCacheOpType = PVRSRV_MISC_INFO_CPUCACHEOP_NONE;
+
+ SysAcquireData(&psSysData);
+
+ if(psSysData->ePendingCacheOpType == PVRSRV_MISC_INFO_CPUCACHEOP_FLUSH)
+ {
+ OSFlushCPUCacheKM();
+ }
+ else if(psSysData->ePendingCacheOpType == PVRSRV_MISC_INFO_CPUCACHEOP_CLEAN)
+ {
+ OSCleanCPUCacheKM();
+ }
+
+
+ psSysData->ePendingCacheOpType = PVRSRV_MISC_INFO_CPUCACHEOP_NONE;
+ }
PVR_ASSERT(eCmdType < SGXMKIF_CMD_MAX);
psSGXCommand->ui32ServiceAddress = psDevInfo->aui32HostKickAddr[eCmdType];
eError = PollForValueKM (psKernelCCB->pui32ReadOffset,
*psKernelCCB->pui32WriteOffset,
0xFF,
+ MAX_HW_TIME_US,
MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT);
+ IMG_FALSE);
if (eError != PVRSRV_OK)
{
eError = PVRSRV_ERROR_TIMEOUT;
SGXMKIF_CMD_TYPE eCmdType,
SGXMKIF_COMMAND *psCommandData,
IMG_UINT32 ui32CallerID,
- IMG_UINT32 ui32PDumpFlags)
+ IMG_UINT32 ui32PDumpFlags,
+ IMG_BOOL bLastInScene)
{
PVRSRV_ERROR eError;
PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice;
return eError;
}
- eError = SGXScheduleCCBCommand(psDevInfo, eCmdType, psCommandData, ui32CallerID, ui32PDumpFlags);
+ eError = SGXScheduleCCBCommand(psDevInfo, eCmdType, psCommandData, ui32CallerID, ui32PDumpFlags, bLastInScene);
PVRSRVPowerUnlock(ui32CallerID);
return PVRSRV_OK;
}
- eError = SGXScheduleCCBCommandKM(psDeviceNode, SGXMKIF_CMD_PROCESS_QUEUES, &sCommand, ISR_ID, 0);
+ eError = SGXScheduleCCBCommandKM(psDeviceNode, SGXMKIF_CMD_PROCESS_QUEUES, &sCommand, ISR_ID, 0, IMG_FALSE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXScheduleProcessQueuesKM failed to schedule CCB command: %u", eError));
sCommand.ui32Data[0] = ui32CleanupType;
sCommand.ui32Data[1] = (psHWDataDevVAddr == IMG_NULL) ? 0 : psHWDataDevVAddr->uiAddr;
- eError = SGXScheduleCCBCommandKM(psDeviceNode, SGXMKIF_CMD_CLEANUP, &sCommand, KERNEL_ID, 0);
+ eError = SGXScheduleCCBCommandKM(psDeviceNode, SGXMKIF_CMD_CLEANUP, &sCommand, KERNEL_ID, 0, IMG_FALSE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXCleanupRequest: Failed to submit clean-up command"));
if(PollForValueKM(&psSGXHostCtl->ui32CleanupStatus,
PVRSRV_USSE_EDM_CLEANUPCMD_COMPLETE,
PVRSRV_USSE_EDM_CLEANUPCMD_COMPLETE,
- 2 * MAX_HW_TIME_US/WAIT_TRY_COUNT,
- WAIT_TRY_COUNT) != PVRSRV_OK)
+ 10 * MAX_HW_TIME_US,
+ 1000,
+ IMG_TRUE) != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"SGXCleanupRequest: Wait for uKernel to clean up (%u) failed", ui32CleanupType));
PVR_DBG_BREAK;
LOOP_UNTIL_TIMEOUT(MAX_HW_TIME_US)
{
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
if(SGX2DQuerySyncOpsComplete(psSyncInfo, ui32ReadOpsPending, ui32WriteOpsPending))
{
return PVRSRV_OK;
}
- OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
+ OSSleepms(1);
} END_LOOP_UNTIL_TIMEOUT();
SGXMKIF_CMD_TYPE eCommandType,
SGXMKIF_COMMAND *psCommandData,
IMG_UINT32 ui32CallerID,
- IMG_UINT32 ui32PDumpFlags);
+ IMG_UINT32 ui32PDumpFlags,
+ IMG_BOOL bLastInScene);
IMG_IMPORT
PVRSRV_ERROR SGXScheduleCCBCommandKM(PVRSRV_DEVICE_NODE *psDeviceNode,
SGXMKIF_CMD_TYPE eCommandType,
SGXMKIF_COMMAND *psCommandData,
IMG_UINT32 ui32CallerID,
- IMG_UINT32 ui32PDumpFlags);
+ IMG_UINT32 ui32PDumpFlags,
+ IMG_BOOL bLastInScene);
IMG_IMPORT
PVRSRV_ERROR SGXScheduleProcessQueuesKM(PVRSRV_DEVICE_NODE *psDeviceNode);
#if defined(__arm__) || defined(__sh__)
#define PGPROT_WC(pv) pgprot_writecombine(pv)
#else
- #if defined(__i386__)
+ #if defined(__i386__) || defined(__mips__)
#define PGPROT_WC(pv) pgprot_noncached(pv)
#else
#define PGPROT_WC(pv) pgprot_noncached(pv)
return PVRSRV_OK;
}
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24))
+
+static inline int is_vmalloc_addr(const void *pvCpuVAddr)
+{
+ unsigned long lAddr = (unsigned long)pvCpuVAddr;
+ return lAddr >= VMALLOC_START && lAddr < VMALLOC_END;
+}
+
+#endif
+
+
#if !defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
PVRSRV_ERROR OSFreeMem_Impl(IMG_UINT32 ui32Flags, IMG_UINT32 ui32Size, IMG_PVOID pvCpuVAddr, IMG_HANDLE hBlockAlloc)
udelay(ui32Timeus);
}
+IMG_VOID OSSleepms(IMG_UINT32 ui32Timems)
+{
+ msleep(ui32Timems);
+}
+
IMG_UINT32 OSGetCurrentProcessIDKM(IMG_VOID)
{
{
case LINUX_MEM_AREA_VMALLOC:
{
- pvMinVAddr = psLinuxMemArea->uData.sVmalloc.pvVmallocAddress + ui32AreaOffset;
+ if(is_vmalloc_addr(pvRangeAddrStart))
+ {
+
+ pvMinVAddr = psLinuxMemArea->uData.sVmalloc.pvVmallocAddress + ui32AreaOffset;
+
+ if(pvRangeAddrStart < pvMinVAddr)
+ goto err_blocked;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+ if (map_unmap == 0 ) {
+
+ pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+
+ } else if (map_unmap == 1) {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_TO_DEVICE);
+
+ } else {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_FROM_DEVICE);
+
+ }
+#else
+pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+#endif
+
+// pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+ }
+
+ else
+ {
+
+ pvMinVAddr = FindMMapBaseVAddr(psMMapOffsetStructList,pvRangeAddrStart, ui32Length);
+ if(!pvMinVAddr)
+ goto err_blocked;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+ if (map_unmap == 0 ) {
+
+ pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+
+ } else if (map_unmap == 1) {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_TO_DEVICE);
+
+ } else {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_FROM_DEVICE);
+
+ }
+#else
+pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+#endif
+
+// pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
- if(pvRangeAddrStart < pvMinVAddr &&
- ui32AreaOffset + ui32Length > ui32AreaLength)
- goto err_blocked;
#if defined(CONFIG_OUTER_CACHE)
+ pvRangeAddrStart = psLinuxMemArea->uData.sVmalloc.pvVmallocAddress +(ui32AreaOffset & PAGE_MASK) + (pvRangeAddrStart - pvMinVAddr);
+ }
+
pfnMemAreaToPhys = VMallocAreaToPhys;
+#else
+}
#endif
break;
}
pvRangeAddrStart, ui32Length);
if(!pvMinVAddr)
goto err_blocked;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+ if (map_unmap == 0 ) {
+
+ pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+
+ } else if (map_unmap == 1) {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_TO_DEVICE);
+
+ } else {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_FROM_DEVICE);
+
+ }
+#else
+pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+#endif
+
+// pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+
#if defined(CONFIG_OUTER_CACHE)
ui32PageNumOffset = ((ui32AreaOffset & PAGE_MASK) + (pvRangeAddrStart - pvMinVAddr)) >> PAGE_SHIFT;
pvRangeAddrStart, ui32Length);
if(!pvMinVAddr)
goto err_blocked;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
+ if (map_unmap == 0 ) {
+
+ pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+
+ } else if (map_unmap == 1) {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_TO_DEVICE);
+
+ } else {
+
+ pfnInnerCacheOp_mapUnamp (pvRangeAddrStart, ui32Length, DMA_FROM_DEVICE);
+
+ }
+#else
+pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
+#endif
+
+ // pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
#if defined(CONFIG_OUTER_CACHE)
ui32PageNumOffset = ((ui32AreaOffset & PAGE_MASK) + (pvRangeAddrStart - pvMinVAddr)) >> PAGE_SHIFT;
PVR_DBG_BREAK;
}
+#if 0
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
if (map_unmap == 0 ) {
#else
pfnInnerCacheOp(pvRangeAddrStart, pvRangeAddrStart + ui32Length);
#endif
+#endif
#if defined(CONFIG_OUTER_CACHE)
- if (pfnMemAreaToPhys != IMG_NULL)
+// if (pfnMemAreaToPhys != IMG_NULL)
+ PVR_ASSERT(pfnMemAreaToPhys != IMG_NULL);
+
{
unsigned long ulStart, ulEnd, ulLength, ulStartOffset, ulEndOffset;
IMG_UINT32 i, ui32NumPages;
pfnOuterCacheOp(ulStart, ulEnd);
}
}
- else
- {
- PVR_DBG_BREAK;
- }
+// else
+// {
+// PVR_DBG_BREAK;
+// }
#endif
return IMG_TRUE;
}
break;
}
-
case PVRSRV_BRIDGE_MAP_DEV_MEMORY:
{
PVRSRV_BRIDGE_IN_MAP_DEV_MEMORY *psMapDevMemIN =
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
+#include <linux/sched.h>
#include <asm/ioctl.h>
#include <drm/drmP.h>
#include <drm/drm.h>
#define PVR_DRM_NAME PVRSRV_MODNAME
#define PVR_DRM_DESC "Imagination Technologies PVR DRM"
+DECLARE_WAIT_QUEUE_HEAD(sWaitForInit);
+
+IMG_BOOL bInitComplete;
+IMG_BOOL bInitFailed;
+
#if !defined(PVR_DRI_DRM_NOT_PCI)
struct pci_dev *gpsPVRLDMDev;
#endif
DRI_DRM_STATIC int
PVRSRVDrmLoad(struct drm_device *dev, unsigned long flags)
{
- int iRes;
+ int iRes=0;
PVR_TRACE(("PVRSRVDrmLoad"));
iRes = dbgdrv_init();
if (iRes != 0)
{
- return iRes;
+ goto exit;
}
#endif
goto exit_pvrcore_cleanup;
}
#endif
- return 0;
-
+// return 0;
+ goto exit;
#if defined(DISPLAY_CONTROLLER)
exit_pvrcore_cleanup:
PVRCore_Cleanup();
#if defined(PDUMP)
dbgdrv_cleanup();
#endif
+exit:
+ if (iRes != 0)
+ {
+ bInitFailed = IMG_TRUE;
+ }
+ bInitComplete = IMG_TRUE;
+
+ wake_up_interruptible(&sWaitForInit);
+
+
return iRes;
}
DRI_DRM_STATIC int
PVRSRVDrmOpen(struct drm_device *dev, struct drm_file *file)
{
+while (!bInitComplete)
+ {
+ DEFINE_WAIT(sWait);
+
+ prepare_to_wait(&sWaitForInit, &sWait, TASK_INTERRUPTIBLE);
+
+ if (!bInitComplete)
+ {
+ PVR_TRACE(("%s: Waiting for module initialisation to complete", __FUNCTION__));
+
+ schedule();
+ }
+
+ finish_wait(&sWaitForInit, &sWait);
+
+ if (signal_pending(current))
+ {
+ return -ERESTARTSYS;
+ }
+ }
+
+ if (bInitFailed)
+ {
+ PVR_DPF((PVR_DBG_ERROR, "%s: Module initialisation failed", __FUNCTION__));
+ return -EINVAL;
+ }
+
+
return PVRSRVOpen(dev, file);
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
#define PVR_DRM_FOPS_IOCTL .unlocked_ioctl
#define PVR_DRM_UNLOCKED DRM_UNLOCKED
+#define DRM_IOCTL_PVR_DRM_SRVKM_IOCTL PVR_DRM_SRVKM_IOCTL
+#define DRM_PVR_DRM_SRVKM_IOCTL PVR_DRM_SRVKM_IOCTL
+#define DRM_PVR_DRM_IS_MASTER_IOCTL PVR_DRM_IS_MASTER_IOCTL
+#define DRM_IOCTL_PVR_DRM_IS_MASTER_IOCTL PVR_DRM_IS_MASTER_IOCTL
+#define DRM_PVR_DRM_UNPRIV_IOCTL PVR_DRM_UNPRIV_IOCTL
+#define DRM_IOCTL_PVR_DRM_UNPRIV_IOCTL PVR_DRM_UNPRIV_IOCTL
#else
#define PVR_DRM_FOPS_IOCTL .ioctl
#define PVR_DRM_UNLOCKED 0
#if !defined(SUPPORT_DRI_DRM_EXT)
struct drm_ioctl_desc sPVRDrmIoctls[] = {
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
+ DRM_IOCTL_DEF_DRV(PVR_DRM_SRVKM_IOCTL, PVRSRV_BridgeDispatchKM, PVR_DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(PVR_DRM_IS_MASTER_IOCTL, PVRDRMIsMaster, DRM_MASTER | PVR_DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(PVR_DRM_UNPRIV_IOCTL, PVRDRMUnprivCmd, PVR_DRM_UNLOCKED),
+#else
DRM_IOCTL_DEF(PVR_DRM_SRVKM_IOCTL, PVRSRV_BridgeDispatchKM, PVR_DRM_UNLOCKED),
DRM_IOCTL_DEF(PVR_DRM_IS_MASTER_IOCTL, PVRDRMIsMaster, DRM_MASTER | PVR_DRM_UNLOCKED),
DRM_IOCTL_DEF(PVR_DRM_UNPRIV_IOCTL, PVRDRMUnprivCmd, PVR_DRM_UNLOCKED),
+#endif
#if defined(PDUMP)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
+ DRM_IOCTL_DEF_DRV(PVR_DRM_DBGDRV_IOCTL, dbgdrv_ioctl, PVR_DRM_UNLOCKED),
+#else
DRM_IOCTL_DEF(PVR_DRM_DBGDRV_IOCTL, dbgdrv_ioctl, PVR_DRM_UNLOCKED),
#endif
+#endif
#if defined(DISPLAY_CONTROLLER) && defined(PVR_DISPLAY_CONTROLLER_DRM_IOCTL)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
+ DRM_IOCTL_DEF_DRV(PVR_DRM_DISP_IOCTL, PVRDRM_Display_ioctl, DRM_MASTER | PVR_DRM_UNLOCKED)
+#else
DRM_IOCTL_DEF(PVR_DRM_DISP_IOCTL, PVRDRM_Display_ioctl, DRM_MASTER | PVR_DRM_UNLOCKED)
#endif
+#endif
};
static int pvr_max_ioctl = DRM_ARRAY_SIZE(sPVRDrmIoctls);
.open = PVRSRVDrmOpen,
.suspend = PVRSRVDriverSuspend,
.resume = PVRSRVDriverResume,
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,32))
.get_map_ofs = drm_core_get_map_ofs,
.get_reg_ofs = drm_core_get_reg_ofs,
+#endif
.ioctls = sPVRDrmIoctls,
.fops =
{
+++ /dev/null
-/**********************************************************************
- *
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful but, except
- * as otherwise stated in writing, without any warranty; without even the
- * implied warranty of merchantability or fitness for a particular purpose.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
- *
- ******************************************************************************/
-
-#ifndef _SGX531DEFS_KM_H_
-#define _SGX531DEFS_KM_H_
-
-#define EUR_CR_CLKGATECTL 0x0000
-#define EUR_CR_CLKGATECTL_ISP_CLKG_MASK 0x00000003
-#define EUR_CR_CLKGATECTL_ISP_CLKG_SHIFT 0
-#define EUR_CR_CLKGATECTL_ISP2_CLKG_MASK 0x0000000C
-#define EUR_CR_CLKGATECTL_ISP2_CLKG_SHIFT 2
-#define EUR_CR_CLKGATECTL_TSP_CLKG_MASK 0x00000030
-#define EUR_CR_CLKGATECTL_TSP_CLKG_SHIFT 4
-#define EUR_CR_CLKGATECTL_TE_CLKG_MASK 0x000000C0
-#define EUR_CR_CLKGATECTL_TE_CLKG_SHIFT 6
-#define EUR_CR_CLKGATECTL_MTE_CLKG_MASK 0x00000300
-#define EUR_CR_CLKGATECTL_MTE_CLKG_SHIFT 8
-#define EUR_CR_CLKGATECTL_DPM_CLKG_MASK 0x00000C00
-#define EUR_CR_CLKGATECTL_DPM_CLKG_SHIFT 10
-#define EUR_CR_CLKGATECTL_VDM_CLKG_MASK 0x00003000
-#define EUR_CR_CLKGATECTL_VDM_CLKG_SHIFT 12
-#define EUR_CR_CLKGATECTL_PDS_CLKG_MASK 0x0000C000
-#define EUR_CR_CLKGATECTL_PDS_CLKG_SHIFT 14
-#define EUR_CR_CLKGATECTL_IDXFIFO_CLKG_MASK 0x00030000
-#define EUR_CR_CLKGATECTL_IDXFIFO_CLKG_SHIFT 16
-#define EUR_CR_CLKGATECTL_TA_CLKG_MASK 0x000C0000
-#define EUR_CR_CLKGATECTL_TA_CLKG_SHIFT 18
-#define EUR_CR_CLKGATECTL_AUTO_MAN_REG_MASK 0x01000000
-#define EUR_CR_CLKGATECTL_AUTO_MAN_REG_SHIFT 24
-#define EUR_CR_CLKGATECTL_SYSTEM_CLKG_MASK 0x10000000
-#define EUR_CR_CLKGATECTL_SYSTEM_CLKG_SHIFT 28
-#define EUR_CR_CLKGATECTL2 0x0004
-#define EUR_CR_CLKGATECTL2_PBE_CLKG_MASK 0x00000003
-#define EUR_CR_CLKGATECTL2_PBE_CLKG_SHIFT 0
-#define EUR_CR_CLKGATECTL2_CACHEL2_CLKG_MASK 0x0000000C
-#define EUR_CR_CLKGATECTL2_CACHEL2_CLKG_SHIFT 2
-#define EUR_CR_CLKGATECTL2_UCACHEL2_CLKG_MASK 0x00000030
-#define EUR_CR_CLKGATECTL2_UCACHEL2_CLKG_SHIFT 4
-#define EUR_CR_CLKGATECTL2_USE0_CLKG_MASK 0x000000C0
-#define EUR_CR_CLKGATECTL2_USE0_CLKG_SHIFT 6
-#define EUR_CR_CLKGATECTL2_ITR0_CLKG_MASK 0x00000300
-#define EUR_CR_CLKGATECTL2_ITR0_CLKG_SHIFT 8
-#define EUR_CR_CLKGATECTL2_TEX0_CLKG_MASK 0x00000C00
-#define EUR_CR_CLKGATECTL2_TEX0_CLKG_SHIFT 10
-#define EUR_CR_CLKGATECTL2_MADD0_CLKG_MASK 0x00003000
-#define EUR_CR_CLKGATECTL2_MADD0_CLKG_SHIFT 12
-#define EUR_CR_CLKGATECTL2_USE1_CLKG_MASK 0x0000C000
-#define EUR_CR_CLKGATECTL2_USE1_CLKG_SHIFT 14
-#define EUR_CR_CLKGATECTL2_ITR1_CLKG_MASK 0x00030000
-#define EUR_CR_CLKGATECTL2_ITR1_CLKG_SHIFT 16
-#define EUR_CR_CLKGATECTL2_TEX1_CLKG_MASK 0x000C0000
-#define EUR_CR_CLKGATECTL2_TEX1_CLKG_SHIFT 18
-#define EUR_CR_CLKGATECTL2_MADD1_CLKG_MASK 0x00300000
-#define EUR_CR_CLKGATECTL2_MADD1_CLKG_SHIFT 20
-#define EUR_CR_CLKGATESTATUS 0x0008
-#define EUR_CR_CLKGATESTATUS_ISP_CLKS_MASK 0x00000001
-#define EUR_CR_CLKGATESTATUS_ISP_CLKS_SHIFT 0
-#define EUR_CR_CLKGATESTATUS_ISP2_CLKS_MASK 0x00000002
-#define EUR_CR_CLKGATESTATUS_ISP2_CLKS_SHIFT 1
-#define EUR_CR_CLKGATESTATUS_TSP_CLKS_MASK 0x00000004
-#define EUR_CR_CLKGATESTATUS_TSP_CLKS_SHIFT 2
-#define EUR_CR_CLKGATESTATUS_TE_CLKS_MASK 0x00000008
-#define EUR_CR_CLKGATESTATUS_TE_CLKS_SHIFT 3
-#define EUR_CR_CLKGATESTATUS_MTE_CLKS_MASK 0x00000010
-#define EUR_CR_CLKGATESTATUS_MTE_CLKS_SHIFT 4
-#define EUR_CR_CLKGATESTATUS_DPM_CLKS_MASK 0x00000020
-#define EUR_CR_CLKGATESTATUS_DPM_CLKS_SHIFT 5
-#define EUR_CR_CLKGATESTATUS_VDM_CLKS_MASK 0x00000040
-#define EUR_CR_CLKGATESTATUS_VDM_CLKS_SHIFT 6
-#define EUR_CR_CLKGATESTATUS_PDS_CLKS_MASK 0x00000080
-#define EUR_CR_CLKGATESTATUS_PDS_CLKS_SHIFT 7
-#define EUR_CR_CLKGATESTATUS_PBE_CLKS_MASK 0x00000100
-#define EUR_CR_CLKGATESTATUS_PBE_CLKS_SHIFT 8
-#define EUR_CR_CLKGATESTATUS_CACHEL2_CLKS_MASK 0x00000200
-#define EUR_CR_CLKGATESTATUS_CACHEL2_CLKS_SHIFT 9
-#define EUR_CR_CLKGATESTATUS_UCACHEL2_CLKS_MASK 0x00000400
-#define EUR_CR_CLKGATESTATUS_UCACHEL2_CLKS_SHIFT 10
-#define EUR_CR_CLKGATESTATUS_USE0_CLKS_MASK 0x00000800
-#define EUR_CR_CLKGATESTATUS_USE0_CLKS_SHIFT 11
-#define EUR_CR_CLKGATESTATUS_ITR0_CLKS_MASK 0x00001000
-#define EUR_CR_CLKGATESTATUS_ITR0_CLKS_SHIFT 12
-#define EUR_CR_CLKGATESTATUS_TEX0_CLKS_MASK 0x00002000
-#define EUR_CR_CLKGATESTATUS_TEX0_CLKS_SHIFT 13
-#define EUR_CR_CLKGATESTATUS_MADD0_CLKS_MASK 0x00004000
-#define EUR_CR_CLKGATESTATUS_MADD0_CLKS_SHIFT 14
-#define EUR_CR_CLKGATESTATUS_USE1_CLKS_MASK 0x00008000
-#define EUR_CR_CLKGATESTATUS_USE1_CLKS_SHIFT 15
-#define EUR_CR_CLKGATESTATUS_ITR1_CLKS_MASK 0x00010000
-#define EUR_CR_CLKGATESTATUS_ITR1_CLKS_SHIFT 16
-#define EUR_CR_CLKGATESTATUS_TEX1_CLKS_MASK 0x00020000
-#define EUR_CR_CLKGATESTATUS_TEX1_CLKS_SHIFT 17
-#define EUR_CR_CLKGATESTATUS_MADD1_CLKS_MASK 0x00040000
-#define EUR_CR_CLKGATESTATUS_MADD1_CLKS_SHIFT 18
-#define EUR_CR_CLKGATESTATUS_IDXFIFO_CLKS_MASK 0x00080000
-#define EUR_CR_CLKGATESTATUS_IDXFIFO_CLKS_SHIFT 19
-#define EUR_CR_CLKGATESTATUS_TA_CLKS_MASK 0x00100000
-#define EUR_CR_CLKGATESTATUS_TA_CLKS_SHIFT 20
-#define EUR_CR_CLKGATECTLOVR 0x000C
-#define EUR_CR_CLKGATECTLOVR_ISP_CLKO_MASK 0x00000003
-#define EUR_CR_CLKGATECTLOVR_ISP_CLKO_SHIFT 0
-#define EUR_CR_CLKGATECTLOVR_ISP2_CLKO_MASK 0x0000000C
-#define EUR_CR_CLKGATECTLOVR_ISP2_CLKO_SHIFT 2
-#define EUR_CR_CLKGATECTLOVR_TSP_CLKO_MASK 0x00000030
-#define EUR_CR_CLKGATECTLOVR_TSP_CLKO_SHIFT 4
-#define EUR_CR_CLKGATECTLOVR_TE_CLKO_MASK 0x000000C0
-#define EUR_CR_CLKGATECTLOVR_TE_CLKO_SHIFT 6
-#define EUR_CR_CLKGATECTLOVR_MTE_CLKO_MASK 0x00000300
-#define EUR_CR_CLKGATECTLOVR_MTE_CLKO_SHIFT 8
-#define EUR_CR_CLKGATECTLOVR_DPM_CLKO_MASK 0x00000C00
-#define EUR_CR_CLKGATECTLOVR_DPM_CLKO_SHIFT 10
-#define EUR_CR_CLKGATECTLOVR_VDM_CLKO_MASK 0x00003000
-#define EUR_CR_CLKGATECTLOVR_VDM_CLKO_SHIFT 12
-#define EUR_CR_CLKGATECTLOVR_PDS_CLKO_MASK 0x0000C000
-#define EUR_CR_CLKGATECTLOVR_PDS_CLKO_SHIFT 14
-#define EUR_CR_CLKGATECTLOVR_IDXFIFO_CLKO_MASK 0x00030000
-#define EUR_CR_CLKGATECTLOVR_IDXFIFO_CLKO_SHIFT 16
-#define EUR_CR_CLKGATECTLOVR_TA_CLKO_MASK 0x000C0000
-#define EUR_CR_CLKGATECTLOVR_TA_CLKO_SHIFT 18
-#define EUR_CR_CORE_ID 0x0020
-#define EUR_CR_CORE_ID_CONFIG_MASK 0x0000FFFF
-#define EUR_CR_CORE_ID_CONFIG_SHIFT 0
-#define EUR_CR_CORE_ID_ID_MASK 0xFFFF0000
-#define EUR_CR_CORE_ID_ID_SHIFT 16
-#define EUR_CR_CORE_REVISION 0x0024
-#define EUR_CR_CORE_REVISION_MAINTENANCE_MASK 0x000000FF
-#define EUR_CR_CORE_REVISION_MAINTENANCE_SHIFT 0
-#define EUR_CR_CORE_REVISION_MINOR_MASK 0x0000FF00
-#define EUR_CR_CORE_REVISION_MINOR_SHIFT 8
-#define EUR_CR_CORE_REVISION_MAJOR_MASK 0x00FF0000
-#define EUR_CR_CORE_REVISION_MAJOR_SHIFT 16
-#define EUR_CR_CORE_REVISION_DESIGNER_MASK 0xFF000000
-#define EUR_CR_CORE_REVISION_DESIGNER_SHIFT 24
-#define EUR_CR_DESIGNER_REV_FIELD1 0x0028
-#define EUR_CR_DESIGNER_REV_FIELD1_DESIGNER_REV_FIELD1_MASK 0xFFFFFFFF
-#define EUR_CR_DESIGNER_REV_FIELD1_DESIGNER_REV_FIELD1_SHIFT 0
-#define EUR_CR_DESIGNER_REV_FIELD2 0x002C
-#define EUR_CR_DESIGNER_REV_FIELD2_DESIGNER_REV_FIELD2_MASK 0xFFFFFFFF
-#define EUR_CR_DESIGNER_REV_FIELD2_DESIGNER_REV_FIELD2_SHIFT 0
-#define EUR_CR_SOFT_RESET 0x0080
-#define EUR_CR_SOFT_RESET_BIF_RESET_MASK 0x00000001
-#define EUR_CR_SOFT_RESET_BIF_RESET_SHIFT 0
-#define EUR_CR_SOFT_RESET_VDM_RESET_MASK 0x00000002
-#define EUR_CR_SOFT_RESET_VDM_RESET_SHIFT 1
-#define EUR_CR_SOFT_RESET_DPM_RESET_MASK 0x00000004
-#define EUR_CR_SOFT_RESET_DPM_RESET_SHIFT 2
-#define EUR_CR_SOFT_RESET_TE_RESET_MASK 0x00000008
-#define EUR_CR_SOFT_RESET_TE_RESET_SHIFT 3
-#define EUR_CR_SOFT_RESET_MTE_RESET_MASK 0x00000010
-#define EUR_CR_SOFT_RESET_MTE_RESET_SHIFT 4
-#define EUR_CR_SOFT_RESET_ISP_RESET_MASK 0x00000020
-#define EUR_CR_SOFT_RESET_ISP_RESET_SHIFT 5
-#define EUR_CR_SOFT_RESET_ISP2_RESET_MASK 0x00000040
-#define EUR_CR_SOFT_RESET_ISP2_RESET_SHIFT 6
-#define EUR_CR_SOFT_RESET_TSP_RESET_MASK 0x00000080
-#define EUR_CR_SOFT_RESET_TSP_RESET_SHIFT 7
-#define EUR_CR_SOFT_RESET_PDS_RESET_MASK 0x00000100
-#define EUR_CR_SOFT_RESET_PDS_RESET_SHIFT 8
-#define EUR_CR_SOFT_RESET_PBE_RESET_MASK 0x00000200
-#define EUR_CR_SOFT_RESET_PBE_RESET_SHIFT 9
-#define EUR_CR_SOFT_RESET_CACHEL2_RESET_MASK 0x00000400
-#define EUR_CR_SOFT_RESET_CACHEL2_RESET_SHIFT 10
-#define EUR_CR_SOFT_RESET_UCACHEL2_RESET_MASK 0x00000800
-#define EUR_CR_SOFT_RESET_UCACHEL2_RESET_SHIFT 11
-#define EUR_CR_SOFT_RESET_MADD_RESET_MASK 0x00001000
-#define EUR_CR_SOFT_RESET_MADD_RESET_SHIFT 12
-#define EUR_CR_SOFT_RESET_ITR_RESET_MASK 0x00002000
-#define EUR_CR_SOFT_RESET_ITR_RESET_SHIFT 13
-#define EUR_CR_SOFT_RESET_TEX_RESET_MASK 0x00004000
-#define EUR_CR_SOFT_RESET_TEX_RESET_SHIFT 14
-#define EUR_CR_SOFT_RESET_USE_RESET_MASK 0x00008000
-#define EUR_CR_SOFT_RESET_USE_RESET_SHIFT 15
-#define EUR_CR_SOFT_RESET_IDXFIFO_RESET_MASK 0x00010000
-#define EUR_CR_SOFT_RESET_IDXFIFO_RESET_SHIFT 16
-#define EUR_CR_SOFT_RESET_TA_RESET_MASK 0x00020000
-#define EUR_CR_SOFT_RESET_TA_RESET_SHIFT 17
-#define EUR_CR_EVENT_HOST_ENABLE2 0x0110
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_TA_MASK 0x00000010
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_TA_SHIFT 4
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_3D_MASK 0x00000008
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_3D_SHIFT 3
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_DL_MASK 0x00000004
-#define EUR_CR_EVENT_HOST_ENABLE2_TRIG_DL_SHIFT 2
-#define EUR_CR_EVENT_HOST_ENABLE2_DPM_3D_FREE_LOAD_MASK 0x00000002
-#define EUR_CR_EVENT_HOST_ENABLE2_DPM_3D_FREE_LOAD_SHIFT 1
-#define EUR_CR_EVENT_HOST_ENABLE2_DPM_TA_FREE_LOAD_MASK 0x00000001
-#define EUR_CR_EVENT_HOST_ENABLE2_DPM_TA_FREE_LOAD_SHIFT 0
-#define EUR_CR_EVENT_HOST_CLEAR2 0x0114
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_TA_MASK 0x00000010
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_TA_SHIFT 4
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_3D_MASK 0x00000008
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_3D_SHIFT 3
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_DL_MASK 0x00000004
-#define EUR_CR_EVENT_HOST_CLEAR2_TRIG_DL_SHIFT 2
-#define EUR_CR_EVENT_HOST_CLEAR2_DPM_3D_FREE_LOAD_MASK 0x00000002
-#define EUR_CR_EVENT_HOST_CLEAR2_DPM_3D_FREE_LOAD_SHIFT 1
-#define EUR_CR_EVENT_HOST_CLEAR2_DPM_TA_FREE_LOAD_MASK 0x00000001
-#define EUR_CR_EVENT_HOST_CLEAR2_DPM_TA_FREE_LOAD_SHIFT 0
-#define EUR_CR_EVENT_STATUS2 0x0118
-#define EUR_CR_EVENT_STATUS2_TRIG_TA_MASK 0x00000010
-#define EUR_CR_EVENT_STATUS2_TRIG_TA_SHIFT 4
-#define EUR_CR_EVENT_STATUS2_TRIG_3D_MASK 0x00000008
-#define EUR_CR_EVENT_STATUS2_TRIG_3D_SHIFT 3
-#define EUR_CR_EVENT_STATUS2_TRIG_DL_MASK 0x00000004
-#define EUR_CR_EVENT_STATUS2_TRIG_DL_SHIFT 2
-#define EUR_CR_EVENT_STATUS2_DPM_3D_FREE_LOAD_MASK 0x00000002
-#define EUR_CR_EVENT_STATUS2_DPM_3D_FREE_LOAD_SHIFT 1
-#define EUR_CR_EVENT_STATUS2_DPM_TA_FREE_LOAD_MASK 0x00000001
-#define EUR_CR_EVENT_STATUS2_DPM_TA_FREE_LOAD_SHIFT 0
-#define EUR_CR_EVENT_STATUS 0x012C
-#define EUR_CR_EVENT_STATUS_MASTER_INTERRUPT_MASK 0x80000000
-#define EUR_CR_EVENT_STATUS_MASTER_INTERRUPT_SHIFT 31
-#define EUR_CR_EVENT_STATUS_TIMER_MASK 0x20000000
-#define EUR_CR_EVENT_STATUS_TIMER_SHIFT 29
-#define EUR_CR_EVENT_STATUS_TA_DPM_FAULT_MASK 0x10000000
-#define EUR_CR_EVENT_STATUS_TA_DPM_FAULT_SHIFT 28
-#define EUR_CR_EVENT_STATUS_TWOD_COMPLETE_MASK 0x08000000
-#define EUR_CR_EVENT_STATUS_TWOD_COMPLETE_SHIFT 27
-#define EUR_CR_EVENT_STATUS_MADD_CACHE_INVALCOMPLETE_MASK 0x04000000
-#define EUR_CR_EVENT_STATUS_MADD_CACHE_INVALCOMPLETE_SHIFT 26
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_ZLS_MASK 0x02000000
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_ZLS_SHIFT 25
-#define EUR_CR_EVENT_STATUS_DPM_TA_MEM_FREE_MASK 0x01000000
-#define EUR_CR_EVENT_STATUS_DPM_TA_MEM_FREE_SHIFT 24
-#define EUR_CR_EVENT_STATUS_ISP_END_TILE_MASK 0x00800000
-#define EUR_CR_EVENT_STATUS_ISP_END_TILE_SHIFT 23
-#define EUR_CR_EVENT_STATUS_DPM_INITEND_MASK 0x00400000
-#define EUR_CR_EVENT_STATUS_DPM_INITEND_SHIFT 22
-#define EUR_CR_EVENT_STATUS_OTPM_LOADED_MASK 0x00200000
-#define EUR_CR_EVENT_STATUS_OTPM_LOADED_SHIFT 21
-#define EUR_CR_EVENT_STATUS_OTPM_INV_MASK 0x00100000
-#define EUR_CR_EVENT_STATUS_OTPM_INV_SHIFT 20
-#define EUR_CR_EVENT_STATUS_OTPM_FLUSHED_MASK 0x00080000
-#define EUR_CR_EVENT_STATUS_OTPM_FLUSHED_SHIFT 19
-#define EUR_CR_EVENT_STATUS_PIXELBE_END_RENDER_MASK 0x00040000
-#define EUR_CR_EVENT_STATUS_PIXELBE_END_RENDER_SHIFT 18
-#define EUR_CR_EVENT_STATUS_ISP_HALT_MASK 0x00020000
-#define EUR_CR_EVENT_STATUS_ISP_HALT_SHIFT 17
-#define EUR_CR_EVENT_STATUS_ISP_VISIBILITY_FAIL_MASK 0x00010000
-#define EUR_CR_EVENT_STATUS_ISP_VISIBILITY_FAIL_SHIFT 16
-#define EUR_CR_EVENT_STATUS_BREAKPOINT_MASK 0x00008000
-#define EUR_CR_EVENT_STATUS_BREAKPOINT_SHIFT 15
-#define EUR_CR_EVENT_STATUS_SW_EVENT_MASK 0x00004000
-#define EUR_CR_EVENT_STATUS_SW_EVENT_SHIFT 14
-#define EUR_CR_EVENT_STATUS_TA_FINISHED_MASK 0x00002000
-#define EUR_CR_EVENT_STATUS_TA_FINISHED_SHIFT 13
-#define EUR_CR_EVENT_STATUS_TA_TERMINATE_MASK 0x00001000
-#define EUR_CR_EVENT_STATUS_TA_TERMINATE_SHIFT 12
-#define EUR_CR_EVENT_STATUS_TPC_CLEAR_MASK 0x00000800
-#define EUR_CR_EVENT_STATUS_TPC_CLEAR_SHIFT 11
-#define EUR_CR_EVENT_STATUS_TPC_FLUSH_MASK 0x00000400
-#define EUR_CR_EVENT_STATUS_TPC_FLUSH_SHIFT 10
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_CLEAR_MASK 0x00000200
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_CLEAR_SHIFT 9
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_LOAD_MASK 0x00000100
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_LOAD_SHIFT 8
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_STORE_MASK 0x00000080
-#define EUR_CR_EVENT_STATUS_DPM_CONTROL_STORE_SHIFT 7
-#define EUR_CR_EVENT_STATUS_DPM_STATE_CLEAR_MASK 0x00000040
-#define EUR_CR_EVENT_STATUS_DPM_STATE_CLEAR_SHIFT 6
-#define EUR_CR_EVENT_STATUS_DPM_STATE_LOAD_MASK 0x00000020
-#define EUR_CR_EVENT_STATUS_DPM_STATE_LOAD_SHIFT 5
-#define EUR_CR_EVENT_STATUS_DPM_STATE_STORE_MASK 0x00000010
-#define EUR_CR_EVENT_STATUS_DPM_STATE_STORE_SHIFT 4
-#define EUR_CR_EVENT_STATUS_DPM_REACHED_MEM_THRESH_MASK 0x00000008
-#define EUR_CR_EVENT_STATUS_DPM_REACHED_MEM_THRESH_SHIFT 3
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_GBL_MASK 0x00000004
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_GBL_SHIFT 2
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_MT_MASK 0x00000002
-#define EUR_CR_EVENT_STATUS_DPM_OUT_OF_MEMORY_MT_SHIFT 1
-#define EUR_CR_EVENT_STATUS_DPM_3D_MEM_FREE_MASK 0x00000001
-#define EUR_CR_EVENT_STATUS_DPM_3D_MEM_FREE_SHIFT 0
-#define EUR_CR_EVENT_HOST_ENABLE 0x0130
-#define EUR_CR_EVENT_HOST_ENABLE_MASTER_INTERRUPT_MASK 0x80000000
-#define EUR_CR_EVENT_HOST_ENABLE_MASTER_INTERRUPT_SHIFT 31
-#define EUR_CR_EVENT_HOST_ENABLE_TIMER_MASK 0x20000000
-#define EUR_CR_EVENT_HOST_ENABLE_TIMER_SHIFT 29
-#define EUR_CR_EVENT_HOST_ENABLE_TA_DPM_FAULT_MASK 0x10000000
-#define EUR_CR_EVENT_HOST_ENABLE_TA_DPM_FAULT_SHIFT 28
-#define EUR_CR_EVENT_HOST_ENABLE_TWOD_COMPLETE_MASK 0x08000000
-#define EUR_CR_EVENT_HOST_ENABLE_TWOD_COMPLETE_SHIFT 27
-#define EUR_CR_EVENT_HOST_ENABLE_MADD_CACHE_INVALCOMPLETE_MASK 0x04000000
-#define EUR_CR_EVENT_HOST_ENABLE_MADD_CACHE_INVALCOMPLETE_SHIFT 26
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_ZLS_MASK 0x02000000
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_ZLS_SHIFT 25
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_TA_MEM_FREE_MASK 0x01000000
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_TA_MEM_FREE_SHIFT 24
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_END_TILE_MASK 0x00800000
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_END_TILE_SHIFT 23
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_INITEND_MASK 0x00400000
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_INITEND_SHIFT 22
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_LOADED_MASK 0x00200000
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_LOADED_SHIFT 21
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_INV_MASK 0x00100000
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_INV_SHIFT 20
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_FLUSHED_MASK 0x00080000
-#define EUR_CR_EVENT_HOST_ENABLE_OTPM_FLUSHED_SHIFT 19
-#define EUR_CR_EVENT_HOST_ENABLE_PIXELBE_END_RENDER_MASK 0x00040000
-#define EUR_CR_EVENT_HOST_ENABLE_PIXELBE_END_RENDER_SHIFT 18
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_HALT_MASK 0x00020000
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_HALT_SHIFT 17
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_VISIBILITY_FAIL_MASK 0x00010000
-#define EUR_CR_EVENT_HOST_ENABLE_ISP_VISIBILITY_FAIL_SHIFT 16
-#define EUR_CR_EVENT_HOST_ENABLE_BREAKPOINT_MASK 0x00008000
-#define EUR_CR_EVENT_HOST_ENABLE_BREAKPOINT_SHIFT 15
-#define EUR_CR_EVENT_HOST_ENABLE_SW_EVENT_MASK 0x00004000
-#define EUR_CR_EVENT_HOST_ENABLE_SW_EVENT_SHIFT 14
-#define EUR_CR_EVENT_HOST_ENABLE_TA_FINISHED_MASK 0x00002000
-#define EUR_CR_EVENT_HOST_ENABLE_TA_FINISHED_SHIFT 13
-#define EUR_CR_EVENT_HOST_ENABLE_TA_TERMINATE_MASK 0x00001000
-#define EUR_CR_EVENT_HOST_ENABLE_TA_TERMINATE_SHIFT 12
-#define EUR_CR_EVENT_HOST_ENABLE_TPC_CLEAR_MASK 0x00000800
-#define EUR_CR_EVENT_HOST_ENABLE_TPC_CLEAR_SHIFT 11
-#define EUR_CR_EVENT_HOST_ENABLE_TPC_FLUSH_MASK 0x00000400
-#define EUR_CR_EVENT_HOST_ENABLE_TPC_FLUSH_SHIFT 10
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_CLEAR_MASK 0x00000200
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_CLEAR_SHIFT 9
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_LOAD_MASK 0x00000100
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_LOAD_SHIFT 8
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_STORE_MASK 0x00000080
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_CONTROL_STORE_SHIFT 7
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_CLEAR_MASK 0x00000040
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_CLEAR_SHIFT 6
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_LOAD_MASK 0x00000020
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_LOAD_SHIFT 5
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_STORE_MASK 0x00000010
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_STATE_STORE_SHIFT 4
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_REACHED_MEM_THRESH_MASK 0x00000008
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_REACHED_MEM_THRESH_SHIFT 3
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_GBL_MASK 0x00000004
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_GBL_SHIFT 2
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_MT_MASK 0x00000002
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_OUT_OF_MEMORY_MT_SHIFT 1
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_3D_MEM_FREE_MASK 0x00000001
-#define EUR_CR_EVENT_HOST_ENABLE_DPM_3D_MEM_FREE_SHIFT 0
-#define EUR_CR_EVENT_HOST_CLEAR 0x0134
-#define EUR_CR_EVENT_HOST_CLEAR_MASTER_INTERRUPT_MASK 0x80000000
-#define EUR_CR_EVENT_HOST_CLEAR_MASTER_INTERRUPT_SHIFT 31
-#define EUR_CR_EVENT_HOST_CLEAR_TIMER_MASK 0x20000000
-#define EUR_CR_EVENT_HOST_CLEAR_TIMER_SHIFT 29
-#define EUR_CR_EVENT_HOST_CLEAR_TA_DPM_FAULT_MASK 0x10000000
-#define EUR_CR_EVENT_HOST_CLEAR_TA_DPM_FAULT_SHIFT 28
-#define EUR_CR_EVENT_HOST_CLEAR_TWOD_COMPLETE_MASK 0x08000000
-#define EUR_CR_EVENT_HOST_CLEAR_TWOD_COMPLETE_SHIFT 27
-#define EUR_CR_EVENT_HOST_CLEAR_MADD_CACHE_INVALCOMPLETE_MASK 0x04000000
-#define EUR_CR_EVENT_HOST_CLEAR_MADD_CACHE_INVALCOMPLETE_SHIFT 26
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_ZLS_MASK 0x02000000
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_ZLS_SHIFT 25
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_TA_MEM_FREE_MASK 0x01000000
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_TA_MEM_FREE_SHIFT 24
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_END_TILE_MASK 0x00800000
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_END_TILE_SHIFT 23
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_INITEND_MASK 0x00400000
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_INITEND_SHIFT 22
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_LOADED_MASK 0x00200000
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_LOADED_SHIFT 21
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_INV_MASK 0x00100000
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_INV_SHIFT 20
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_FLUSHED_MASK 0x00080000
-#define EUR_CR_EVENT_HOST_CLEAR_OTPM_FLUSHED_SHIFT 19
-#define EUR_CR_EVENT_HOST_CLEAR_PIXELBE_END_RENDER_MASK 0x00040000
-#define EUR_CR_EVENT_HOST_CLEAR_PIXELBE_END_RENDER_SHIFT 18
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_HALT_MASK 0x00020000
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_HALT_SHIFT 17
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_VISIBILITY_FAIL_MASK 0x00010000
-#define EUR_CR_EVENT_HOST_CLEAR_ISP_VISIBILITY_FAIL_SHIFT 16
-#define EUR_CR_EVENT_HOST_CLEAR_BREAKPOINT_MASK 0x00008000
-#define EUR_CR_EVENT_HOST_CLEAR_BREAKPOINT_SHIFT 15
-#define EUR_CR_EVENT_HOST_CLEAR_SW_EVENT_MASK 0x00004000
-#define EUR_CR_EVENT_HOST_CLEAR_SW_EVENT_SHIFT 14
-#define EUR_CR_EVENT_HOST_CLEAR_TA_FINISHED_MASK 0x00002000
-#define EUR_CR_EVENT_HOST_CLEAR_TA_FINISHED_SHIFT 13
-#define EUR_CR_EVENT_HOST_CLEAR_TA_TERMINATE_MASK 0x00001000
-#define EUR_CR_EVENT_HOST_CLEAR_TA_TERMINATE_SHIFT 12
-#define EUR_CR_EVENT_HOST_CLEAR_TPC_CLEAR_MASK 0x00000800
-#define EUR_CR_EVENT_HOST_CLEAR_TPC_CLEAR_SHIFT 11
-#define EUR_CR_EVENT_HOST_CLEAR_TPC_FLUSH_MASK 0x00000400
-#define EUR_CR_EVENT_HOST_CLEAR_TPC_FLUSH_SHIFT 10
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_CLEAR_MASK 0x00000200
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_CLEAR_SHIFT 9
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_LOAD_MASK 0x00000100
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_LOAD_SHIFT 8
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_STORE_MASK 0x00000080
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_CONTROL_STORE_SHIFT 7
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_CLEAR_MASK 0x00000040
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_CLEAR_SHIFT 6
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_LOAD_MASK 0x00000020
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_LOAD_SHIFT 5
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_STORE_MASK 0x00000010
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_STATE_STORE_SHIFT 4
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_REACHED_MEM_THRESH_MASK 0x00000008
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_REACHED_MEM_THRESH_SHIFT 3
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_GBL_MASK 0x00000004
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_GBL_SHIFT 2
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_MT_MASK 0x00000002
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_OUT_OF_MEMORY_MT_SHIFT 1
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_3D_MEM_FREE_MASK 0x00000001
-#define EUR_CR_EVENT_HOST_CLEAR_DPM_3D_MEM_FREE_SHIFT 0
-#define EUR_CR_EVENT_KICK1 0x0AB0
-#define EUR_CR_EVENT_KICK1_NOW_MASK 0x000000FF
-#define EUR_CR_EVENT_KICK1_NOW_SHIFT 0
-#define EUR_CR_PDS_EXEC_BASE 0x0AB8
-#define EUR_CR_PDS_EXEC_BASE_ADDR_MASK 0x0FF00000
-#define EUR_CR_PDS_EXEC_BASE_ADDR_SHIFT 20
-#define EUR_CR_EVENT_KICK2 0x0AC0
-#define EUR_CR_EVENT_KICK2_NOW_MASK 0x00000001
-#define EUR_CR_EVENT_KICK2_NOW_SHIFT 0
-#define EUR_CR_EVENT_KICKER 0x0AC4
-#define EUR_CR_EVENT_KICKER_ADDRESS_MASK 0x0FFFFFF0
-#define EUR_CR_EVENT_KICKER_ADDRESS_SHIFT 4
-#define EUR_CR_EVENT_KICK 0x0AC8
-#define EUR_CR_EVENT_KICK_NOW_MASK 0x00000001
-#define EUR_CR_EVENT_KICK_NOW_SHIFT 0
-#define EUR_CR_EVENT_TIMER 0x0ACC
-#define EUR_CR_EVENT_TIMER_ENABLE_MASK 0x01000000
-#define EUR_CR_EVENT_TIMER_ENABLE_SHIFT 24
-#define EUR_CR_EVENT_TIMER_VALUE_MASK 0x00FFFFFF
-#define EUR_CR_EVENT_TIMER_VALUE_SHIFT 0
-#define EUR_CR_PDS_INV0 0x0AD0
-#define EUR_CR_PDS_INV0_DSC_MASK 0x00000001
-#define EUR_CR_PDS_INV0_DSC_SHIFT 0
-#define EUR_CR_PDS_INV1 0x0AD4
-#define EUR_CR_PDS_INV1_DSC_MASK 0x00000001
-#define EUR_CR_PDS_INV1_DSC_SHIFT 0
-#define EUR_CR_EVENT_KICK3 0x0AD8
-#define EUR_CR_EVENT_KICK3_NOW_MASK 0x00000001
-#define EUR_CR_EVENT_KICK3_NOW_SHIFT 0
-#define EUR_CR_PDS_INV3 0x0ADC
-#define EUR_CR_PDS_INV3_DSC_MASK 0x00000001
-#define EUR_CR_PDS_INV3_DSC_SHIFT 0
-#define EUR_CR_PDS_INV_CSC 0x0AE0
-#define EUR_CR_PDS_INV_CSC_KICK_MASK 0x00000001
-#define EUR_CR_PDS_INV_CSC_KICK_SHIFT 0
-#define EUR_CR_PDS_PC_BASE 0x0B2C
-#define EUR_CR_PDS_PC_BASE_ADDRESS_MASK 0x00FFFFFF
-#define EUR_CR_PDS_PC_BASE_ADDRESS_SHIFT 0
-#define EUR_CR_BIF_CTRL 0x0C00
-#define EUR_CR_BIF_CTRL_NOREORDER_MASK 0x00000001
-#define EUR_CR_BIF_CTRL_NOREORDER_SHIFT 0
-#define EUR_CR_BIF_CTRL_PAUSE_MASK 0x00000002
-#define EUR_CR_BIF_CTRL_PAUSE_SHIFT 1
-#define EUR_CR_BIF_CTRL_FLUSH_MASK 0x00000004
-#define EUR_CR_BIF_CTRL_FLUSH_SHIFT 2
-#define EUR_CR_BIF_CTRL_INVALDC_MASK 0x00000008
-#define EUR_CR_BIF_CTRL_INVALDC_SHIFT 3
-#define EUR_CR_BIF_CTRL_CLEAR_FAULT_MASK 0x00000010
-#define EUR_CR_BIF_CTRL_CLEAR_FAULT_SHIFT 4
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_CACHE_MASK 0x00000100
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_CACHE_SHIFT 8
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_VDM_MASK 0x00000200
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_VDM_SHIFT 9
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_TE_MASK 0x00000400
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_TE_SHIFT 10
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_PBE_MASK 0x00001000
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_PBE_SHIFT 12
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_TSPP_MASK 0x00002000
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_TSPP_SHIFT 13
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_ISP_MASK 0x00004000
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_ISP_SHIFT 14
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_USE_MASK 0x00008000
-#define EUR_CR_BIF_CTRL_MMU_BYPASS_USE_SHIFT 15
-#define EUR_CR_BIF_INT_STAT 0x0C04
-#define EUR_CR_BIF_INT_STAT_FAULT_MASK 0x00003FFF
-#define EUR_CR_BIF_INT_STAT_FAULT_SHIFT 0
-#define EUR_CR_BIF_INT_STAT_PF_N_RW_MASK 0x00004000
-#define EUR_CR_BIF_INT_STAT_PF_N_RW_SHIFT 14
-#define EUR_CR_BIF_INT_STAT_FLUSH_COMPLETE_MASK 0x00008000
-#define EUR_CR_BIF_INT_STAT_FLUSH_COMPLETE_SHIFT 15
-#define EUR_CR_BIF_FAULT 0x0C08
-#define EUR_CR_BIF_FAULT_SB_MASK 0x000001F0
-#define EUR_CR_BIF_FAULT_SB_SHIFT 4
-#define EUR_CR_BIF_FAULT_ADDR_MASK 0x0FFFF000
-#define EUR_CR_BIF_FAULT_ADDR_SHIFT 12
-#define EUR_CR_BIF_DIR_LIST_BASE0 0x0C84
-#define EUR_CR_BIF_DIR_LIST_BASE0_ADDR_MASK 0xFFFFF000
-#define EUR_CR_BIF_DIR_LIST_BASE0_ADDR_SHIFT 12
-#define EUR_CR_BIF_TA_REQ_BASE 0x0C90
-#define EUR_CR_BIF_TA_REQ_BASE_ADDR_MASK 0x0FF00000
-#define EUR_CR_BIF_TA_REQ_BASE_ADDR_SHIFT 20
-#define EUR_CR_BIF_MEM_REQ_STAT 0x0CA8
-#define EUR_CR_BIF_MEM_REQ_STAT_READS_MASK 0x000000FF
-#define EUR_CR_BIF_MEM_REQ_STAT_READS_SHIFT 0
-#define EUR_CR_BIF_3D_REQ_BASE 0x0CAC
-#define EUR_CR_BIF_3D_REQ_BASE_ADDR_MASK 0x0FF00000
-#define EUR_CR_BIF_3D_REQ_BASE_ADDR_SHIFT 20
-#define EUR_CR_BIF_ZLS_REQ_BASE 0x0CB0
-#define EUR_CR_BIF_ZLS_REQ_BASE_ADDR_MASK 0x0FF00000
-#define EUR_CR_BIF_ZLS_REQ_BASE_ADDR_SHIFT 20
-#define EUR_CR_2D_BLIT_STATUS 0x0E04
-#define EUR_CR_2D_BLIT_STATUS_COMPLETE_MASK 0x00FFFFFF
-#define EUR_CR_2D_BLIT_STATUS_COMPLETE_SHIFT 0
-#define EUR_CR_2D_BLIT_STATUS_BUSY_MASK 0x01000000
-#define EUR_CR_2D_BLIT_STATUS_BUSY_SHIFT 24
-#define EUR_CR_2D_VIRTUAL_FIFO_0 0x0E10
-#define EUR_CR_2D_VIRTUAL_FIFO_0_ENABLE_MASK 0x00000001
-#define EUR_CR_2D_VIRTUAL_FIFO_0_ENABLE_SHIFT 0
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_MASK 0x0000000E
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_SHIFT 1
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_DIV_MASK 0x00000FF0
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_DIV_SHIFT 4
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_MUL_MASK 0x0000F000
-#define EUR_CR_2D_VIRTUAL_FIFO_0_FLOWRATE_MUL_SHIFT 12
-#define EUR_CR_2D_VIRTUAL_FIFO_1 0x0E14
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MIN_ACC_MASK 0x00000FFF
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MIN_ACC_SHIFT 0
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MAX_ACC_MASK 0x00FFF000
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MAX_ACC_SHIFT 12
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MIN_METRIC_MASK 0xFF000000
-#define EUR_CR_2D_VIRTUAL_FIFO_1_MIN_METRIC_SHIFT 24
-#define EUR_CR_USE_CODE_BASE(X) (0x0A0C + (4 * (X)))
-#define EUR_CR_USE_CODE_BASE_ADDR_MASK 0x00FFFFFF
-#define EUR_CR_USE_CODE_BASE_ADDR_SHIFT 0
-#define EUR_CR_USE_CODE_BASE_DM_MASK 0x03000000
-#define EUR_CR_USE_CODE_BASE_DM_SHIFT 24
-#define EUR_CR_USE_CODE_BASE_SIZE_UINT32 16
-#define EUR_CR_USE_CODE_BASE_NUM_ENTRIES 16
-#define EUR_CR_MNE_CR_CTRL 0x0D00
-#define EUR_CR_MNE_CR_CTRL_BYP_CC_N_MASK 0x00010000
-#define EUR_CR_MNE_CR_CTRL_BYP_CC_N_SHIFT 16
-#define EUR_CR_MNE_CR_CTRL_BYP_CC_MASK 0x00008000
-#define EUR_CR_MNE_CR_CTRL_BYP_CC_SHIFT 15
-#define EUR_CR_MNE_CR_CTRL_USE_INVAL_ADDR_MASK 0x00007800
-#define EUR_CR_MNE_CR_CTRL_USE_INVAL_ADDR_SHIFT 11
-#define EUR_CR_MNE_CR_CTRL_BYPASS_ALL_MASK 0x00000400
-#define EUR_CR_MNE_CR_CTRL_BYPASS_ALL_SHIFT 10
-#define EUR_CR_MNE_CR_CTRL_BYPASS_MASK 0x000003E0
-#define EUR_CR_MNE_CR_CTRL_BYPASS_SHIFT 5
-#define EUR_CR_MNE_CR_CTRL_PAUSE_MASK 0x00000010
-#define EUR_CR_MNE_CR_CTRL_PAUSE_SHIFT 4
-#define EUR_CR_MNE_CR_CTRL_INVAL_PREQ_MASK 0x0000000E
-#define EUR_CR_MNE_CR_CTRL_INVAL_PREQ_SHIFT 1
-#define EUR_CR_MNE_CR_CTRL_INVAL_PREQ_PDS_MASK (1<<EUR_CR_MNE_CR_CTRL_INVAL_PREQ_SHIFT+2)
-#define EUR_CR_MNE_CR_CTRL_INVAL_PREQ_USEC_MASK (1<<EUR_CR_MNE_CR_CTRL_INVAL_PREQ_SHIFT+1)
-#define EUR_CR_MNE_CR_CTRL_INVAL_PREQ_CACHE_MASK (1<<EUR_CR_MNE_CR_CTRL_INVAL_PREQ_SHIFT)
-#define EUR_CR_MNE_CR_CTRL_INVAL_ALL_MASK 0x00000001
-#define EUR_CR_MNE_CR_CTRL_INVAL_ALL_SHIFT 0
-#define EUR_CR_MNE_CR_USE_INVAL 0x0D04
-#define EUR_CR_MNE_CR_USE_INVAL_ADDR_MASK 0xFFFFFFFF
-#define EUR_CR_MNE_CR_USE_INVAL_ADDR_SHIFT 0
-#define EUR_CR_MNE_CR_STAT 0x0D08
-#define EUR_CR_MNE_CR_STAT_PAUSED_MASK 0x00000400
-#define EUR_CR_MNE_CR_STAT_PAUSED_SHIFT 10
-#define EUR_CR_MNE_CR_STAT_READS_MASK 0x000003FF
-#define EUR_CR_MNE_CR_STAT_READS_SHIFT 0
-#define EUR_CR_MNE_CR_STAT_STATS 0x0D0C
-#define EUR_CR_MNE_CR_STAT_STATS_RST_MASK 0x000FFFF0
-#define EUR_CR_MNE_CR_STAT_STATS_RST_SHIFT 4
-#define EUR_CR_MNE_CR_STAT_STATS_SEL_MASK 0x0000000F
-#define EUR_CR_MNE_CR_STAT_STATS_SEL_SHIFT 0
-#define EUR_CR_MNE_CR_STAT_STATS_OUT 0x0D10
-#define EUR_CR_MNE_CR_STAT_STATS_OUT_VALUE_MASK 0xFFFFFFFF
-#define EUR_CR_MNE_CR_STAT_STATS_OUT_VALUE_SHIFT 0
-#define EUR_CR_MNE_CR_EVENT_STATUS 0x0D14
-#define EUR_CR_MNE_CR_EVENT_STATUS_INVAL_MASK 0x00000001
-#define EUR_CR_MNE_CR_EVENT_STATUS_INVAL_SHIFT 0
-#define EUR_CR_MNE_CR_EVENT_CLEAR 0x0D18
-#define EUR_CR_MNE_CR_EVENT_CLEAR_INVAL_MASK 0x00000001
-#define EUR_CR_MNE_CR_EVENT_CLEAR_INVAL_SHIFT 0
-#define EUR_CR_MNE_CR_CTRL_INVAL 0x0D20
-
-#endif
-
#if !defined(USE_CODE)
-IMG_IMPORT PVRSRV_ERROR IMG_CALLCONV PollForValueKM(volatile IMG_UINT32* pui32LinMemAddr,
- IMG_UINT32 ui32Value,
- IMG_UINT32 ui32Mask,
- IMG_UINT32 ui32Waitus,
- IMG_UINT32 ui32Tries);
+IMG_IMPORT PVRSRV_ERROR IMG_CALLCONV PollForValueKM(volatile IMG_UINT32* pui32LinMemAddr,
+ IMG_UINT32 ui32Value,
+ IMG_UINT32 ui32Mask,
+ IMG_UINT32 ui32Timeoutus,
+ IMG_UINT32 ui32PollPeriodus,
+ IMG_BOOL bAllowPreemption);
#endif
PVRSRV_ERROR OSDestroyResource(PVRSRV_RESOURCE *psResource);
IMG_VOID OSBreakResourceLock(PVRSRV_RESOURCE *psResource, IMG_UINT32 ui32ID);
IMG_VOID OSWaitus(IMG_UINT32 ui32Timeus);
+IMG_VOID OSSleepms(IMG_UINT32 ui32Timems);
IMG_VOID OSReleaseThreadQuanta(IMG_VOID);
IMG_UINT32 OSPCIReadDword(IMG_UINT32 ui32Bus, IMG_UINT32 ui32Dev, IMG_UINT32 ui32Func, IMG_UINT32 ui32Reg);
IMG_VOID OSPCIWriteDword(IMG_UINT32 ui32Bus, IMG_UINT32 ui32Dev, IMG_UINT32 ui32Func, IMG_UINT32 ui32Reg, IMG_UINT32 ui32Value);
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#if !defined(__OEMFUNCS_H__)\r
-#define __OEMFUNCS_H__\r
-\r
-#if defined (__cplusplus)\r
-extern "C" {\r
-#endif\r
-\r
-typedef IMG_UINT32 (*PFN_SRV_BRIDGEDISPATCH)( IMG_UINT32 Ioctl,\r
- IMG_BYTE *pInBuf,\r
- IMG_UINT32 InBufLen, \r
- IMG_BYTE *pOutBuf,\r
- IMG_UINT32 OutBufLen,\r
- IMG_UINT32 *pdwBytesTransferred);\r
-typedef struct PVRSRV_DC_OEM_JTABLE_TAG\r
-{\r
- PFN_SRV_BRIDGEDISPATCH pfnOEMBridgeDispatch;\r
- IMG_PVOID pvDummy1;\r
- IMG_PVOID pvDummy2;\r
- IMG_PVOID pvDummy3;\r
-\r
-} PVRSRV_DC_OEM_JTABLE;\r
-\r
-#define OEM_GET_EXT_FUNCS (1<<1)\r
-\r
-#if defined(__cplusplus)\r
-}\r
-#endif\r
-\r
-#endif \r
-\r
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#if !defined(__OEMFUNCS_H__)
+#define __OEMFUNCS_H__
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+typedef IMG_UINT32 (*PFN_SRV_BRIDGEDISPATCH)( IMG_UINT32 Ioctl,
+ IMG_BYTE *pInBuf,
+ IMG_UINT32 InBufLen,
+ IMG_BYTE *pOutBuf,
+ IMG_UINT32 OutBufLen,
+ IMG_UINT32 *pdwBytesTransferred);
+typedef struct PVRSRV_DC_OEM_JTABLE_TAG
+{
+ PFN_SRV_BRIDGEDISPATCH pfnOEMBridgeDispatch;
+ IMG_PVOID pvDummy1;
+ IMG_PVOID pvDummy2;
+ IMG_PVOID pvDummy3;
+
+} PVRSRV_DC_OEM_JTABLE;
+
+#define OEM_GET_EXT_FUNCS (1<<1)
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
+
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#include "services_headers.h"\r
-#include "kerneldisplay.h"\r
-#include "oemfuncs.h"\r
-#include "sgxinfo.h"\r
-#include "pdump_km.h"\r
-#include "sgxinfokm.h"\r
-#include "syslocal.h"\r
-#include "sysconfig.h"\r
-\r
-SYS_DATA* gpsSysData = (SYS_DATA*)IMG_NULL;\r
-SYS_DATA gsSysData;\r
-\r
-static SYS_SPECIFIC_DATA gsSysSpecificData;\r
-SYS_SPECIFIC_DATA *gpsSysSpecificData;\r
-\r
-static IMG_UINT32 gui32SGXDeviceID;\r
-static SGX_DEVICE_MAP gsSGXDeviceMap;\r
-static PVRSRV_DEVICE_NODE *gpsSGXDevNode;\r
-\r
-#define DEVICE_SGX_INTERRUPT (1 << 0)\r
-\r
-#if defined(NO_HARDWARE)\r
-static IMG_CPU_VIRTADDR gsSGXRegsCPUVAddr;\r
-#endif\r
-\r
-IMG_UINT32 PVRSRV_BridgeDispatchKM(IMG_UINT32 Ioctl,\r
- IMG_BYTE *pInBuf,\r
- IMG_UINT32 InBufLen,\r
- IMG_BYTE *pOutBuf,\r
- IMG_UINT32 OutBufLen,\r
- IMG_UINT32 *pdwBytesTransferred);\r
-\r
-static PVRSRV_ERROR SysLocateDevices(SYS_DATA *psSysData)\r
-{\r
-#if defined(NO_HARDWARE)\r
- PVRSRV_ERROR eError;\r
- IMG_CPU_PHYADDR sCpuPAddr;\r
-#endif\r
-\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
-\r
- \r
- gsSGXDeviceMap.ui32Flags = 0x0;\r
- \r
-#if defined(NO_HARDWARE)\r
- \r
- \r
- eError = OSBaseAllocContigMemory(SYS_OMAP3430_SGX_REGS_SIZE, \r
- &gsSGXRegsCPUVAddr,\r
- &sCpuPAddr);\r
- if(eError != PVRSRV_OK)\r
- {\r
- return eError;\r
- }\r
- gsSGXDeviceMap.sRegsCpuPBase = sCpuPAddr;\r
- gsSGXDeviceMap.sRegsSysPBase = SysCpuPAddrToSysPAddr(gsSGXDeviceMap.sRegsCpuPBase);\r
- gsSGXDeviceMap.ui32RegsSize = SYS_OMAP3430_SGX_REGS_SIZE;\r
-#if defined(__linux__)\r
- \r
- gsSGXDeviceMap.pvRegsCpuVBase = gsSGXRegsCPUVAddr;\r
-#else\r
- \r
- gsSGXDeviceMap.pvRegsCpuVBase = IMG_NULL;\r
-#endif\r
-\r
- OSMemSet(gsSGXRegsCPUVAddr, 0, SYS_OMAP3430_SGX_REGS_SIZE);\r
-\r
- \r
-\r
-\r
- gsSGXDeviceMap.ui32IRQ = 0;\r
-\r
-#else \r
-\r
- gsSGXDeviceMap.sRegsSysPBase.uiAddr = SYS_OMAP3430_SGX_REGS_SYS_PHYS_BASE;\r
- gsSGXDeviceMap.sRegsCpuPBase = SysSysPAddrToCpuPAddr(gsSGXDeviceMap.sRegsSysPBase);\r
- gsSGXDeviceMap.ui32RegsSize = SYS_OMAP3430_SGX_REGS_SIZE;\r
-\r
- gsSGXDeviceMap.ui32IRQ = SYS_OMAP3430_SGX_IRQ;\r
-\r
-#endif \r
-\r
-\r
- \r
-\r
-\r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-IMG_CHAR *SysCreateVersionString(IMG_CPU_PHYADDR sRegRegion)\r
-{\r
- static IMG_CHAR aszVersionString[100];\r
- SYS_DATA *psSysData;\r
- IMG_UINT32 ui32SGXRevision;\r
- IMG_INT32 i32Count;\r
-#if !defined(NO_HARDWARE)\r
- IMG_VOID *pvRegsLinAddr;\r
-\r
- pvRegsLinAddr = OSMapPhysToLin(sRegRegion,\r
- SYS_OMAP3430_SGX_REGS_SIZE,\r
- PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,\r
- IMG_NULL);\r
- if(!pvRegsLinAddr)\r
- {\r
- return IMG_NULL;\r
- }\r
-\r
- ui32SGXRevision = OSReadHWReg((IMG_PVOID)((IMG_PBYTE)pvRegsLinAddr),\r
- EUR_CR_CORE_REVISION);\r
-#else\r
- ui32SGXRevision = 0;\r
-#endif\r
-\r
- if (SysAcquireData(&psSysData) != PVRSRV_OK)\r
- {\r
- return IMG_NULL;\r
- }\r
-\r
- i32Count = OSSNPrintf(aszVersionString, 100,\r
- "SGX revision = %u.%u.%u",\r
- (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MAJOR_MASK)\r
- >> EUR_CR_CORE_REVISION_MAJOR_SHIFT),\r
- (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MINOR_MASK)\r
- >> EUR_CR_CORE_REVISION_MINOR_SHIFT),\r
- (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MAINTENANCE_MASK)\r
- >> EUR_CR_CORE_REVISION_MAINTENANCE_SHIFT)\r
- );\r
-\r
-#if !defined(NO_HARDWARE)\r
- OSUnMapPhysToLin(pvRegsLinAddr,\r
- SYS_OMAP3430_SGX_REGS_SIZE,\r
- PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,\r
- IMG_NULL);\r
-#endif\r
-\r
- if(i32Count == -1)\r
- {\r
- return IMG_NULL;\r
- }\r
-\r
- return aszVersionString;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysInitialise(IMG_VOID)\r
-{\r
- IMG_UINT32 i;\r
- PVRSRV_ERROR eError;\r
- PVRSRV_DEVICE_NODE *psDeviceNode;\r
- IMG_CPU_PHYADDR TimerRegPhysBase;\r
-\r
-#if defined(DEBUG)\r
- PVR_DPF((PVR_DBG_WARNING,"SysInitialise: Entering..."));\r
-#endif\r
-\r
-#if !defined(SGX_DYNAMIC_TIMING_INFO)\r
- SGX_TIMING_INFORMATION* psTimingInfo;\r
-#endif\r
- gpsSysData = &gsSysData;\r
- OSMemSet(gpsSysData, 0, sizeof(SYS_DATA));\r
-\r
- gpsSysSpecificData = &gsSysSpecificData;\r
- OSMemSet(gpsSysSpecificData, 0, sizeof(SYS_SPECIFIC_DATA));\r
-\r
- gpsSysData->pvSysSpecificData = gpsSysSpecificData;\r
-\r
- eError = OSInitEnvData(&gpsSysData->pvEnvSpecificData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to setup env structure"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_ENVDATA);\r
-\r
- gpsSysData->ui32NumDevices = SYS_DEVICE_COUNT;\r
-\r
- \r
- for(i=0; i<SYS_DEVICE_COUNT; i++)\r
- {\r
- gpsSysData->sDeviceID[i].uiID = i;\r
- gpsSysData->sDeviceID[i].bInUse = IMG_FALSE;\r
- }\r
-\r
- gpsSysData->psDeviceNodeList = IMG_NULL;\r
- gpsSysData->psQueueList = IMG_NULL;\r
-\r
- eError = SysInitialiseCommon(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed in SysInitialiseCommon"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
-\r
- TimerRegPhysBase.uiAddr = SYS_OMAP3430_GP11TIMER_REGS_SYS_PHYS_BASE;\r
- gpsSysData->pvSOCTimerRegisterKM = IMG_NULL;\r
- gpsSysData->hSOCTimerRegisterOSMemHandle = 0;\r
- OSReservePhys(TimerRegPhysBase,\r
- 4,\r
- PVRSRV_HAP_MULTI_PROCESS|PVRSRV_HAP_UNCACHED,\r
- (IMG_VOID **)&gpsSysData->pvSOCTimerRegisterKM,\r
- &gpsSysData->hSOCTimerRegisterOSMemHandle);\r
-\r
-#if !defined(SGX_DYNAMIC_TIMING_INFO)\r
- \r
- psTimingInfo = &gsSGXDeviceMap.sTimingInfo;\r
- psTimingInfo->ui32CoreClockSpeed = SYS_SGX_CLOCK_SPEED;\r
- psTimingInfo->ui32HWRecoveryFreq = SYS_SGX_HWRECOVERY_TIMEOUT_FREQ; \r
- psTimingInfo->ui32ActivePowManLatencyms = SYS_SGX_ACTIVE_POWER_LATENCY_MS; \r
- psTimingInfo->ui32uKernelFreq = SYS_SGX_PDS_TIMER_FREQ; \r
-#endif\r
-\r
- \r
-\r
- gpsSysSpecificData->ui32SrcClockDiv = 3;\r
-\r
- \r
-\r
-\r
-\r
- eError = SysLocateDevices(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to locate devices"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV);\r
-\r
- \r
-\r
-\r
- eError = PVRSRVRegisterDevice(gpsSysData, SGXRegisterDevice,\r
- DEVICE_SGX_INTERRUPT, &gui32SGXDeviceID);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to register device!"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_REGDEV);\r
-\r
- \r
-\r
-\r
- \r
- psDeviceNode = gpsSysData->psDeviceNodeList;\r
- while(psDeviceNode)\r
- {\r
- \r
- switch(psDeviceNode->sDevId.eDeviceType)\r
- {\r
- case PVRSRV_DEVICE_TYPE_SGX:\r
- {\r
- DEVICE_MEMORY_INFO *psDevMemoryInfo;\r
- DEVICE_MEMORY_HEAP_INFO *psDeviceMemoryHeap;\r
-\r
- \r
-\r
-\r
- psDeviceNode->psLocalDevMemArena = IMG_NULL;\r
-\r
- \r
- psDevMemoryInfo = &psDeviceNode->sDevMemoryInfo;\r
- psDeviceMemoryHeap = psDevMemoryInfo->psDeviceMemoryHeap;\r
-\r
- \r
- for(i=0; i<psDevMemoryInfo->ui32HeapCount; i++)\r
- {\r
- psDeviceMemoryHeap[i].ui32Attribs |= PVRSRV_BACKINGSTORE_SYSMEM_NONCONTIG;\r
- }\r
-\r
- gpsSGXDevNode = psDeviceNode;\r
- gsSysSpecificData.psSGXDevNode = psDeviceNode;\r
-\r
- break;\r
- }\r
- default:\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to find SGX device node!"));\r
- return PVRSRV_ERROR_INIT_FAILURE;\r
- }\r
-\r
- \r
- psDeviceNode = psDeviceNode->psNext;\r
- }\r
-\r
- PDUMPINIT();\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_PDUMPINIT);\r
-\r
- eError = EnableSystemClocks(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable system clocks (%d)", eError));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);\r
-\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- eError = EnableSGXClocks(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
-#endif \r
-\r
- eError = PVRSRVInitialiseDevice(gui32SGXDeviceID);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to initialise device!"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_INITDEV);\r
-\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- \r
- DisableSGXClocks(gpsSysData);\r
-#endif \r
-\r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysFinalise(IMG_VOID)\r
-{\r
- PVRSRV_ERROR eError = PVRSRV_OK;\r
- \r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- eError = EnableSGXClocks(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
-#endif \r
-\r
-#if defined(SYS_USING_INTERRUPTS)\r
-\r
- eError = OSInstallMISR(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to install MISR"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_MISR);\r
-\r
- \r
- eError = OSInstallDeviceLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ, "SGX ISR", gpsSGXDevNode);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to install ISR"));\r
- SysDeinitialise(gpsSysData);\r
- gpsSysData = IMG_NULL;\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);\r
-#endif \r
-\r
- \r
- gpsSysData->pszVersionString = SysCreateVersionString(gsSGXDeviceMap.sRegsCpuPBase);\r
- if (!gpsSysData->pszVersionString)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to create a system version string"));\r
- }\r
- else\r
- {\r
- PVR_DPF((PVR_DBG_WARNING, "SysFinalise: Version string: %s", gpsSysData->pszVersionString));\r
- }\r
-\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- \r
- DisableSGXClocks(gpsSysData);\r
-#endif \r
-\r
- gpsSysSpecificData->bSGXInitComplete = IMG_TRUE;\r
-\r
- return eError;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysDeinitialise (SYS_DATA *psSysData)\r
-{\r
- PVRSRV_ERROR eError;\r
- \r
-#if defined(SYS_USING_INTERRUPTS)\r
- if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR))\r
- {\r
- eError = OSUninstallDeviceLISR(psSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: OSUninstallDeviceLISR failed"));\r
- return eError;\r
- }\r
- }\r
-\r
- if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_MISR))\r
- {\r
- eError = OSUninstallMISR(psSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: OSUninstallMISR failed"));\r
- return eError;\r
- }\r
- }\r
-#else\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
-#endif \r
-\r
- if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_INITDEV))\r
- {\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- PVR_ASSERT(SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS));\r
- \r
- eError = EnableSGXClocks(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: EnableSGXClocks failed"));\r
- return eError;\r
- }\r
-#endif \r
-\r
- \r
- eError = PVRSRVDeinitialiseDevice (gui32SGXDeviceID);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: failed to de-init the device"));\r
- return eError;\r
- }\r
- }\r
- \r
- \r
-\r
- if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS))\r
- {\r
- DisableSystemClocks(gpsSysData);\r
- }\r
-\r
- if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_ENVDATA))\r
- { \r
- eError = OSDeInitEnvData(gpsSysData->pvEnvSpecificData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: failed to de-init env structure"));\r
- return eError;\r
- }\r
- }\r
-\r
- if(gpsSysData->pvSOCTimerRegisterKM)\r
- {\r
- OSUnReservePhys(gpsSysData->pvSOCTimerRegisterKM,\r
- 4,\r
- PVRSRV_HAP_MULTI_PROCESS|PVRSRV_HAP_UNCACHED,\r
- gpsSysData->hSOCTimerRegisterOSMemHandle);\r
- }\r
-\r
- SysDeinitialiseCommon(gpsSysData);\r
-\r
-#if defined(NO_HARDWARE)\r
- if(SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV))\r
- {\r
- \r
- OSBaseFreeContigMemory(SYS_OMAP3430_SGX_REGS_SIZE, gsSGXRegsCPUVAddr, gsSGXDeviceMap.sRegsCpuPBase);\r
- }\r
-#endif\r
-\r
- \r
- if(SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_PDUMPINIT))\r
- {\r
- PDUMPDEINIT();\r
- }\r
-\r
- gpsSysSpecificData->ui32SysSpecificData = 0;\r
- gpsSysSpecificData->bSGXInitComplete = IMG_FALSE;\r
-\r
- gpsSysData = IMG_NULL;\r
-\r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysGetDeviceMemoryMap(PVRSRV_DEVICE_TYPE eDeviceType,\r
- IMG_VOID **ppvDeviceMap)\r
-{\r
-\r
- switch(eDeviceType)\r
- {\r
- case PVRSRV_DEVICE_TYPE_SGX:\r
- {\r
- \r
- *ppvDeviceMap = (IMG_VOID*)&gsSGXDeviceMap;\r
-\r
- break;\r
- }\r
- default:\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysGetDeviceMemoryMap: unsupported device type"));\r
- }\r
- }\r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-IMG_DEV_PHYADDR SysCpuPAddrToDevPAddr(PVRSRV_DEVICE_TYPE eDeviceType,\r
- IMG_CPU_PHYADDR CpuPAddr)\r
-{\r
- IMG_DEV_PHYADDR DevPAddr;\r
-\r
- PVR_UNREFERENCED_PARAMETER(eDeviceType);\r
-\r
- \r
- DevPAddr.uiAddr = CpuPAddr.uiAddr;\r
- \r
- return DevPAddr;\r
-}\r
-\r
-IMG_CPU_PHYADDR SysSysPAddrToCpuPAddr (IMG_SYS_PHYADDR sys_paddr)\r
-{\r
- IMG_CPU_PHYADDR cpu_paddr;\r
-\r
- \r
- cpu_paddr.uiAddr = sys_paddr.uiAddr;\r
- return cpu_paddr;\r
-}\r
-\r
-IMG_SYS_PHYADDR SysCpuPAddrToSysPAddr (IMG_CPU_PHYADDR cpu_paddr)\r
-{\r
- IMG_SYS_PHYADDR sys_paddr;\r
-\r
- \r
- sys_paddr.uiAddr = cpu_paddr.uiAddr;\r
- return sys_paddr;\r
-}\r
-\r
-\r
-IMG_DEV_PHYADDR SysSysPAddrToDevPAddr(PVRSRV_DEVICE_TYPE eDeviceType, IMG_SYS_PHYADDR SysPAddr)\r
-{\r
- IMG_DEV_PHYADDR DevPAddr;\r
-\r
- PVR_UNREFERENCED_PARAMETER(eDeviceType);\r
-\r
- \r
- DevPAddr.uiAddr = SysPAddr.uiAddr;\r
-\r
- return DevPAddr;\r
-}\r
-\r
-\r
-IMG_SYS_PHYADDR SysDevPAddrToSysPAddr(PVRSRV_DEVICE_TYPE eDeviceType, IMG_DEV_PHYADDR DevPAddr)\r
-{\r
- IMG_SYS_PHYADDR SysPAddr;\r
-\r
- PVR_UNREFERENCED_PARAMETER(eDeviceType);\r
-\r
- \r
- SysPAddr.uiAddr = DevPAddr.uiAddr;\r
-\r
- return SysPAddr;\r
-}\r
-\r
-\r
-IMG_VOID SysRegisterExternalDevice(PVRSRV_DEVICE_NODE *psDeviceNode)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(psDeviceNode);\r
-}\r
-\r
-\r
-IMG_VOID SysRemoveExternalDevice(PVRSRV_DEVICE_NODE *psDeviceNode)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(psDeviceNode);\r
-}\r
-\r
-\r
-IMG_UINT32 SysGetInterruptSource(SYS_DATA *psSysData,\r
- PVRSRV_DEVICE_NODE *psDeviceNode)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
-#if defined(NO_HARDWARE)\r
- \r
- return 0xFFFFFFFF;\r
-#else\r
- \r
- return psDeviceNode->ui32SOCInterruptBit;\r
-#endif\r
-}\r
-\r
-\r
-IMG_VOID SysClearInterrupts(SYS_DATA* psSysData, IMG_UINT32 ui32ClearBits)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
- PVR_UNREFERENCED_PARAMETER(ui32ClearBits);\r
-\r
- \r
- OSReadHWReg(((PVRSRV_SGXDEV_INFO *)gpsSGXDevNode->pvDevice)->pvRegsBaseKM,\r
- EUR_CR_EVENT_HOST_CLEAR);\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysSystemPrePowerState(PVR_POWER_STATE eNewPowerState)\r
-{\r
- PVRSRV_ERROR eError = PVRSRV_OK;\r
-\r
- if (eNewPowerState == PVRSRV_POWER_STATE_D3)\r
- {\r
- PVR_TRACE(("SysSystemPrePowerState: Entering state D3"));\r
-\r
-#if defined(SYS_USING_INTERRUPTS)\r
- if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR))\r
- {\r
-#if defined(SYS_CUSTOM_POWERLOCK_WRAP)\r
- IMG_BOOL bWrapped = WrapSystemPowerChange(&gsSysSpecificData);\r
-#endif\r
- eError = OSUninstallDeviceLISR(gpsSysData);\r
-#if defined(SYS_CUSTOM_POWERLOCK_WRAP)\r
- if (bWrapped)\r
- {\r
- UnwrapSystemPowerChange(&gsSysSpecificData);\r
- }\r
-#endif\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysSystemPrePowerState: OSUninstallDeviceLISR failed (%d)", eError));\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR);\r
- SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);\r
- }\r
-#endif\r
-\r
- if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS))\r
- {\r
- DisableSystemClocks(gpsSysData);\r
-\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS);\r
- SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);\r
- }\r
- }\r
-\r
- return eError;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysSystemPostPowerState(PVR_POWER_STATE eNewPowerState)\r
-{\r
- PVRSRV_ERROR eError = PVRSRV_OK;\r
-\r
- if (eNewPowerState == PVRSRV_POWER_STATE_D0)\r
- {\r
- PVR_TRACE(("SysSystemPostPowerState: Entering state D0"));\r
-\r
- if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS))\r
- {\r
- eError = EnableSystemClocks(gpsSysData);\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysSystemPostPowerState: EnableSystemClocks failed (%d)", eError));\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);\r
- SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS);\r
- }\r
-\r
-#if defined(SYS_USING_INTERRUPTS)\r
- if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR))\r
- {\r
-#if defined(SYS_CUSTOM_POWERLOCK_WRAP)\r
- IMG_BOOL bWrapped = WrapSystemPowerChange(&gsSysSpecificData);\r
-#endif\r
-\r
- eError = OSInstallDeviceLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ, "SGX ISR", gpsSGXDevNode);\r
-#if defined(SYS_CUSTOM_POWERLOCK_WRAP)\r
- if (bWrapped)\r
- {\r
- UnwrapSystemPowerChange(&gsSysSpecificData);\r
- }\r
-#endif\r
- if (eError != PVRSRV_OK)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR,"SysSystemPostPowerState: OSInstallDeviceLISR failed to install ISR (%d)", eError));\r
- return eError;\r
- }\r
- SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);\r
- SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR);\r
- }\r
-#endif\r
- }\r
- return eError;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysDevicePrePowerState(IMG_UINT32 ui32DeviceIndex,\r
- PVR_POWER_STATE eNewPowerState,\r
- PVR_POWER_STATE eCurrentPowerState)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(eCurrentPowerState);\r
-\r
- if (ui32DeviceIndex != gui32SGXDeviceID)\r
- {\r
- return PVRSRV_OK;\r
- }\r
-\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- if (eNewPowerState == PVRSRV_POWER_STATE_D3)\r
- {\r
- PVR_DPF((PVR_DBG_MESSAGE, "SysDevicePrePowerState: SGX Entering state D3"));\r
- DisableSGXClocks(gpsSysData);\r
- PVRSRVSetDCState(DC_STATE_SUSPEND_COMMANDS);\r
- }\r
-#else \r
- PVR_UNREFERENCED_PARAMETER(eNewPowerState );\r
-#endif \r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysDevicePostPowerState(IMG_UINT32 ui32DeviceIndex,\r
- PVR_POWER_STATE eNewPowerState,\r
- PVR_POWER_STATE eCurrentPowerState)\r
-{\r
- PVRSRV_ERROR eError = PVRSRV_OK;\r
-\r
- PVR_UNREFERENCED_PARAMETER(eNewPowerState);\r
-\r
- if (ui32DeviceIndex != gui32SGXDeviceID)\r
- {\r
- return eError;\r
- }\r
-\r
-#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- if (eCurrentPowerState == PVRSRV_POWER_STATE_D3)\r
- {\r
- PVR_DPF((PVR_DBG_MESSAGE, "SysDevicePostPowerState: SGX Leaving state D3"));\r
- PVRSRVSetDCState(DC_STATE_RESUME_COMMANDS);\r
- eError = EnableSGXClocks(gpsSysData);\r
- }\r
-#else \r
- PVR_UNREFERENCED_PARAMETER(eCurrentPowerState);\r
-#endif \r
-\r
- return eError;\r
-}\r
-\r
-\r
-PVRSRV_ERROR SysOEMFunction ( IMG_UINT32 ui32ID,\r
- IMG_VOID *pvIn,\r
- IMG_UINT32 ulInSize,\r
- IMG_VOID *pvOut,\r
- IMG_UINT32 ulOutSize)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(ui32ID);\r
- PVR_UNREFERENCED_PARAMETER(pvIn);\r
- PVR_UNREFERENCED_PARAMETER(ulInSize);\r
- PVR_UNREFERENCED_PARAMETER(pvOut);\r
- PVR_UNREFERENCED_PARAMETER(ulOutSize);\r
-\r
- if ((ui32ID == OEM_GET_EXT_FUNCS) &&\r
- (ulOutSize == sizeof(PVRSRV_DC_OEM_JTABLE)))\r
- {\r
- \r
- PVRSRV_DC_OEM_JTABLE *psOEMJTable = (PVRSRV_DC_OEM_JTABLE*) pvOut;\r
- psOEMJTable->pfnOEMBridgeDispatch = &PVRSRV_BridgeDispatchKM;\r
- return PVRSRV_OK;\r
- }\r
-\r
- return PVRSRV_ERROR_INVALID_PARAMS;\r
-}\r
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#include "services_headers.h"
+#include "kerneldisplay.h"
+#include "oemfuncs.h"
+#include "sgxinfo.h"
+#include "sgxinfokm.h"
+#include "syslocal.h"
+#include "sysconfig.h"
+
+#include "ocpdefs.h"
+
+#if !defined(NO_HARDWARE) && \
+ defined(SYS_USING_INTERRUPTS) && \
+ defined(SGX540) && (SGX_CORE_REV == 110)
+#define SGX_OCP_REGS_ENABLED
+#endif
+
+SYS_DATA* gpsSysData = (SYS_DATA*)IMG_NULL;
+SYS_DATA gsSysData;
+
+static SYS_SPECIFIC_DATA gsSysSpecificData;
+SYS_SPECIFIC_DATA *gpsSysSpecificData;
+
+static IMG_UINT32 gui32SGXDeviceID;
+static SGX_DEVICE_MAP gsSGXDeviceMap;
+static PVRSRV_DEVICE_NODE *gpsSGXDevNode;
+
+#define DEVICE_SGX_INTERRUPT (1 << 0)
+
+#if defined(NO_HARDWARE)
+static IMG_CPU_VIRTADDR gsSGXRegsCPUVAddr;
+#endif
+
+IMG_UINT32 PVRSRV_BridgeDispatchKM(IMG_UINT32 Ioctl,
+ IMG_BYTE *pInBuf,
+ IMG_UINT32 InBufLen,
+ IMG_BYTE *pOutBuf,
+ IMG_UINT32 OutBufLen,
+ IMG_UINT32 *pdwBytesTransferred);
+
+#if defined(SGX_OCP_REGS_ENABLED)
+
+#define SYS_OMAP4430_OCP_REGS_SYS_PHYS_BASE (SYS_OMAP4430_SGX_REGS_SYS_PHYS_BASE + EUR_CR_OCP_REVISION)
+#define SYS_OMAP4430_OCP_REGS_SIZE 0x110
+
+static IMG_CPU_VIRTADDR gpvOCPRegsLinAddr;
+
+static PVRSRV_ERROR EnableSGXClocksWrap(SYS_DATA *psSysData)
+{
+ PVRSRV_ERROR eError = EnableSGXClocks(psSysData);
+
+ if(eError == PVRSRV_OK)
+ {
+ OSWriteHWReg(gpvOCPRegsLinAddr,
+ EUR_CR_OCP_SYSCONFIG - EUR_CR_OCP_REVISION,
+ 0x14);
+ OSWriteHWReg(gpvOCPRegsLinAddr,
+ EUR_CR_OCP_DEBUG_CONFIG - EUR_CR_OCP_REVISION,
+ EUR_CR_OCP_DEBUG_CONFIG_THALIA_INT_BYPASS_MASK);
+ }
+
+ return eError;
+}
+
+#else
+
+static INLINE PVRSRV_ERROR EnableSGXClocksWrap(SYS_DATA *psSysData)
+{
+ return EnableSGXClocks(psSysData);
+}
+
+#endif
+
+static INLINE PVRSRV_ERROR EnableSystemClocksWrap(SYS_DATA *psSysData)
+{
+ PVRSRV_ERROR eError = EnableSystemClocks(psSysData);
+
+#if !defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ if(eError == PVRSRV_OK)
+ {
+
+ EnableSGXClocksWrap(psSysData);
+ }
+#endif
+
+ return eError;
+}
+
+static PVRSRV_ERROR SysLocateDevices(SYS_DATA *psSysData)
+{
+#if defined(NO_HARDWARE)
+ PVRSRV_ERROR eError;
+ IMG_CPU_PHYADDR sCpuPAddr;
+#endif
+
+ PVR_UNREFERENCED_PARAMETER(psSysData);
+
+
+ gsSGXDeviceMap.ui32Flags = 0x0;
+
+#if defined(NO_HARDWARE)
+
+
+ eError = OSBaseAllocContigMemory(SYS_OMAP4430_SGX_REGS_SIZE,
+ &gsSGXRegsCPUVAddr,
+ &sCpuPAddr);
+ if(eError != PVRSRV_OK)
+ {
+ return eError;
+ }
+ gsSGXDeviceMap.sRegsCpuPBase = sCpuPAddr;
+ gsSGXDeviceMap.sRegsSysPBase = SysCpuPAddrToSysPAddr(gsSGXDeviceMap.sRegsCpuPBase);
+ gsSGXDeviceMap.ui32RegsSize = SYS_OMAP4430_SGX_REGS_SIZE;
+#if defined(__linux__)
+
+ gsSGXDeviceMap.pvRegsCpuVBase = gsSGXRegsCPUVAddr;
+#else
+
+ gsSGXDeviceMap.pvRegsCpuVBase = IMG_NULL;
+#endif
+
+ OSMemSet(gsSGXRegsCPUVAddr, 0, SYS_OMAP4430_SGX_REGS_SIZE);
+
+
+
+
+ gsSGXDeviceMap.ui32IRQ = 0;
+
+#else
+
+ gsSGXDeviceMap.sRegsSysPBase.uiAddr = SYS_OMAP4430_SGX_REGS_SYS_PHYS_BASE;
+ gsSGXDeviceMap.sRegsCpuPBase = SysSysPAddrToCpuPAddr(gsSGXDeviceMap.sRegsSysPBase);
+ gsSGXDeviceMap.ui32RegsSize = SYS_OMAP4430_SGX_REGS_SIZE;
+
+ gsSGXDeviceMap.ui32IRQ = SYS_OMAP4430_SGX_IRQ;
+
+#endif
+
+#if defined(PDUMP)
+ {
+
+ static IMG_CHAR pszPDumpDevName[] = "SGXMEM";
+ gsSGXDeviceMap.pszPDumpDevName = pszPDumpDevName;
+ }
+#endif
+
+
+
+
+ return PVRSRV_OK;
+}
+
+
+IMG_CHAR *SysCreateVersionString(IMG_CPU_PHYADDR sRegRegion)
+{
+ static IMG_CHAR aszVersionString[100];
+ SYS_DATA *psSysData;
+ IMG_UINT32 ui32SGXRevision;
+ IMG_INT32 i32Count;
+#if !defined(NO_HARDWARE)
+ IMG_VOID *pvRegsLinAddr;
+
+ pvRegsLinAddr = OSMapPhysToLin(sRegRegion,
+ SYS_OMAP4430_SGX_REGS_SIZE,
+ PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,
+ IMG_NULL);
+ if(!pvRegsLinAddr)
+ {
+ return IMG_NULL;
+ }
+
+ ui32SGXRevision = OSReadHWReg((IMG_PVOID)((IMG_PBYTE)pvRegsLinAddr),
+ EUR_CR_CORE_REVISION);
+#else
+ ui32SGXRevision = 0;
+#endif
+
+ SysAcquireData(&psSysData);
+
+ i32Count = OSSNPrintf(aszVersionString, 100,
+ "SGX revision = %u.%u.%u",
+ (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MAJOR_MASK)
+ >> EUR_CR_CORE_REVISION_MAJOR_SHIFT),
+ (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MINOR_MASK)
+ >> EUR_CR_CORE_REVISION_MINOR_SHIFT),
+ (IMG_UINT)((ui32SGXRevision & EUR_CR_CORE_REVISION_MAINTENANCE_MASK)
+ >> EUR_CR_CORE_REVISION_MAINTENANCE_SHIFT)
+ );
+
+#if !defined(NO_HARDWARE)
+ OSUnMapPhysToLin(pvRegsLinAddr,
+ SYS_OMAP4430_SGX_REGS_SIZE,
+ PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,
+ IMG_NULL);
+#endif
+
+ if(i32Count == -1)
+ {
+ return IMG_NULL;
+ }
+
+ return aszVersionString;
+}
+
+
+PVRSRV_ERROR SysInitialise(IMG_VOID)
+{
+ IMG_UINT32 i;
+ PVRSRV_ERROR eError;
+ PVRSRV_DEVICE_NODE *psDeviceNode;
+ IMG_CPU_PHYADDR TimerRegPhysBase;
+#if !defined(SGX_DYNAMIC_TIMING_INFO)
+ SGX_TIMING_INFORMATION* psTimingInfo;
+#endif
+ gpsSysData = &gsSysData;
+ OSMemSet(gpsSysData, 0, sizeof(SYS_DATA));
+
+ gpsSysSpecificData = &gsSysSpecificData;
+ OSMemSet(gpsSysSpecificData, 0, sizeof(SYS_SPECIFIC_DATA));
+
+ gpsSysData->pvSysSpecificData = gpsSysSpecificData;
+
+ eError = OSInitEnvData(&gpsSysData->pvEnvSpecificData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to setup env structure"));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_ENVDATA);
+
+ gpsSysData->ui32NumDevices = SYS_DEVICE_COUNT;
+
+
+ for(i=0; i<SYS_DEVICE_COUNT; i++)
+ {
+ gpsSysData->sDeviceID[i].uiID = i;
+ gpsSysData->sDeviceID[i].bInUse = IMG_FALSE;
+ }
+
+ gpsSysData->psDeviceNodeList = IMG_NULL;
+ gpsSysData->psQueueList = IMG_NULL;
+
+ eError = SysInitialiseCommon(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed in SysInitialiseCommon"));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+
+ TimerRegPhysBase.uiAddr = SYS_OMAP4430_GP11TIMER_REGS_SYS_PHYS_BASE;
+ gpsSysData->pvSOCTimerRegisterKM = IMG_NULL;
+ gpsSysData->hSOCTimerRegisterOSMemHandle = 0;
+ OSReservePhys(TimerRegPhysBase,
+ 4,
+ PVRSRV_HAP_MULTI_PROCESS|PVRSRV_HAP_UNCACHED,
+ (IMG_VOID **)&gpsSysData->pvSOCTimerRegisterKM,
+ &gpsSysData->hSOCTimerRegisterOSMemHandle);
+
+#if !defined(SGX_DYNAMIC_TIMING_INFO)
+
+ psTimingInfo = &gsSGXDeviceMap.sTimingInfo;
+ psTimingInfo->ui32CoreClockSpeed = SYS_SGX_CLOCK_SPEED;
+ psTimingInfo->ui32HWRecoveryFreq = SYS_SGX_HWRECOVERY_TIMEOUT_FREQ;
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ psTimingInfo->bEnableActivePM = IMG_TRUE;
+#else
+ psTimingInfo->bEnableActivePM = IMG_FALSE;
+#endif
+ psTimingInfo->ui32ActivePowManLatencyms = SYS_SGX_ACTIVE_POWER_LATENCY_MS;
+ psTimingInfo->ui32uKernelFreq = SYS_SGX_PDS_TIMER_FREQ;
+#endif
+
+
+
+ gpsSysSpecificData->ui32SrcClockDiv = 3;
+
+
+
+
+
+ eError = SysLocateDevices(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to locate devices"));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV);
+
+#if defined(SGX_OCP_REGS_ENABLED)
+ {
+ IMG_SYS_PHYADDR sOCPRegsSysPBase;
+ IMG_CPU_PHYADDR sOCPRegsCpuPBase;
+
+ sOCPRegsSysPBase.uiAddr = SYS_OMAP4430_OCP_REGS_SYS_PHYS_BASE;
+ sOCPRegsCpuPBase = SysSysPAddrToCpuPAddr(sOCPRegsSysPBase);
+
+ gpvOCPRegsLinAddr = OSMapPhysToLin(sOCPRegsCpuPBase,
+ SYS_OMAP4430_OCP_REGS_SIZE,
+ PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,
+ IMG_NULL);
+
+ if (gpvOCPRegsLinAddr == IMG_NULL)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to map OCP registers"));
+ return PVRSRV_ERROR_BAD_MAPPING;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_OCPREGS);
+ }
+#endif
+
+
+
+
+ eError = PVRSRVRegisterDevice(gpsSysData, SGXRegisterDevice,
+ DEVICE_SGX_INTERRUPT, &gui32SGXDeviceID);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to register device!"));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_REGDEV);
+
+
+
+
+
+ psDeviceNode = gpsSysData->psDeviceNodeList;
+ while(psDeviceNode)
+ {
+
+ switch(psDeviceNode->sDevId.eDeviceType)
+ {
+ case PVRSRV_DEVICE_TYPE_SGX:
+ {
+ DEVICE_MEMORY_INFO *psDevMemoryInfo;
+ DEVICE_MEMORY_HEAP_INFO *psDeviceMemoryHeap;
+
+
+
+
+ psDeviceNode->psLocalDevMemArena = IMG_NULL;
+
+
+ psDevMemoryInfo = &psDeviceNode->sDevMemoryInfo;
+ psDeviceMemoryHeap = psDevMemoryInfo->psDeviceMemoryHeap;
+
+
+ for(i=0; i<psDevMemoryInfo->ui32HeapCount; i++)
+ {
+ psDeviceMemoryHeap[i].ui32Attribs |= PVRSRV_BACKINGSTORE_SYSMEM_NONCONTIG;
+ }
+
+ gpsSGXDevNode = psDeviceNode;
+ gsSysSpecificData.psSGXDevNode = psDeviceNode;
+
+ break;
+ }
+ default:
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to find SGX device node!"));
+ return PVRSRV_ERROR_INIT_FAILURE;
+ }
+
+
+ psDeviceNode = psDeviceNode->psNext;
+ }
+
+ eError = EnableSystemClocksWrap(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable system clocks (%d)", eError));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ eError = EnableSGXClocksWrap(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+#endif
+
+ eError = PVRSRVInitialiseDevice(gui32SGXDeviceID);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to initialise device!"));
+ (IMG_VOID)SysDeinitialise(gpsSysData);
+ gpsSysData = IMG_NULL;
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_INITDEV);
+
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+
+ DisableSGXClocks(gpsSysData);
+#endif
+
+ return PVRSRV_OK;
+}
+
+
+PVRSRV_ERROR SysFinalise(IMG_VOID)
+{
+ PVRSRV_ERROR eError = PVRSRV_OK;
+
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ eError = EnableSGXClocksWrap(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));
+ return eError;
+ }
+#endif
+
+ eError = OSInstallMISR(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to install MISR"));
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_MISR);
+
+#if defined(SYS_USING_INTERRUPTS)
+
+ eError = OSInstallDeviceLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ, "SGX ISR", gpsSGXDevNode);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to install ISR"));
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);
+#endif
+
+
+ gpsSysData->pszVersionString = SysCreateVersionString(gsSGXDeviceMap.sRegsCpuPBase);
+ if (!gpsSysData->pszVersionString)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to create a system version string"));
+ }
+ else
+ {
+ PVR_DPF((PVR_DBG_WARNING, "SysFinalise: Version string: %s", gpsSysData->pszVersionString));
+ }
+
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+
+ DisableSGXClocks(gpsSysData);
+#endif
+
+ gpsSysSpecificData->bSGXInitComplete = IMG_TRUE;
+
+ return eError;
+}
+
+
+PVRSRV_ERROR SysDeinitialise (SYS_DATA *psSysData)
+{
+ PVRSRV_ERROR eError;
+
+#if defined(SYS_USING_INTERRUPTS)
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR))
+ {
+ eError = OSUninstallDeviceLISR(psSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: OSUninstallDeviceLISR failed"));
+ return eError;
+ }
+ }
+#endif
+
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_MISR))
+ {
+ eError = OSUninstallMISR(psSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: OSUninstallMISR failed"));
+ return eError;
+ }
+ }
+
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_INITDEV))
+ {
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ PVR_ASSERT(SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS));
+
+ eError = EnableSGXClocksWrap(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: EnableSGXClocks failed"));
+ return eError;
+ }
+#endif
+
+
+ eError = PVRSRVDeinitialiseDevice (gui32SGXDeviceID);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: failed to de-init the device"));
+ return eError;
+ }
+ }
+
+#if defined(SGX_OCP_REGS_ENABLED)
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_OCPREGS))
+ {
+ OSUnMapPhysToLin(gpvOCPRegsLinAddr,
+ SYS_OMAP4430_OCP_REGS_SIZE,
+ PVRSRV_HAP_UNCACHED|PVRSRV_HAP_KERNEL_ONLY,
+ IMG_NULL);
+ }
+#endif
+
+
+
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS))
+ {
+ DisableSystemClocks(gpsSysData);
+ }
+
+ if (SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_ENVDATA))
+ {
+ eError = OSDeInitEnvData(gpsSysData->pvEnvSpecificData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysDeinitialise: failed to de-init env structure"));
+ return eError;
+ }
+ }
+
+ if(gpsSysData->pvSOCTimerRegisterKM)
+ {
+ OSUnReservePhys(gpsSysData->pvSOCTimerRegisterKM,
+ 4,
+ PVRSRV_HAP_MULTI_PROCESS|PVRSRV_HAP_UNCACHED,
+ gpsSysData->hSOCTimerRegisterOSMemHandle);
+ }
+
+ SysDeinitialiseCommon(gpsSysData);
+
+#if defined(NO_HARDWARE)
+ if(SYS_SPECIFIC_DATA_TEST(gpsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV))
+ {
+
+ OSBaseFreeContigMemory(SYS_OMAP4430_SGX_REGS_SIZE, gsSGXRegsCPUVAddr, gsSGXDeviceMap.sRegsCpuPBase);
+ }
+#endif
+
+
+ gpsSysSpecificData->ui32SysSpecificData = 0;
+ gpsSysSpecificData->bSGXInitComplete = IMG_FALSE;
+
+ gpsSysData = IMG_NULL;
+
+ return PVRSRV_OK;
+}
+
+
+PVRSRV_ERROR SysGetDeviceMemoryMap(PVRSRV_DEVICE_TYPE eDeviceType,
+ IMG_VOID **ppvDeviceMap)
+{
+
+ switch(eDeviceType)
+ {
+ case PVRSRV_DEVICE_TYPE_SGX:
+ {
+
+ *ppvDeviceMap = (IMG_VOID*)&gsSGXDeviceMap;
+
+ break;
+ }
+ default:
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysGetDeviceMemoryMap: unsupported device type"));
+ }
+ }
+ return PVRSRV_OK;
+}
+
+
+IMG_DEV_PHYADDR SysCpuPAddrToDevPAddr(PVRSRV_DEVICE_TYPE eDeviceType,
+ IMG_CPU_PHYADDR CpuPAddr)
+{
+ IMG_DEV_PHYADDR DevPAddr;
+
+ PVR_UNREFERENCED_PARAMETER(eDeviceType);
+
+
+ DevPAddr.uiAddr = CpuPAddr.uiAddr;
+
+ return DevPAddr;
+}
+
+IMG_CPU_PHYADDR SysSysPAddrToCpuPAddr (IMG_SYS_PHYADDR sys_paddr)
+{
+ IMG_CPU_PHYADDR cpu_paddr;
+
+
+ cpu_paddr.uiAddr = sys_paddr.uiAddr;
+ return cpu_paddr;
+}
+
+IMG_SYS_PHYADDR SysCpuPAddrToSysPAddr (IMG_CPU_PHYADDR cpu_paddr)
+{
+ IMG_SYS_PHYADDR sys_paddr;
+
+
+ sys_paddr.uiAddr = cpu_paddr.uiAddr;
+ return sys_paddr;
+}
+
+
+IMG_DEV_PHYADDR SysSysPAddrToDevPAddr(PVRSRV_DEVICE_TYPE eDeviceType, IMG_SYS_PHYADDR SysPAddr)
+{
+ IMG_DEV_PHYADDR DevPAddr;
+
+ PVR_UNREFERENCED_PARAMETER(eDeviceType);
+
+
+ DevPAddr.uiAddr = SysPAddr.uiAddr;
+
+ return DevPAddr;
+}
+
+
+IMG_SYS_PHYADDR SysDevPAddrToSysPAddr(PVRSRV_DEVICE_TYPE eDeviceType, IMG_DEV_PHYADDR DevPAddr)
+{
+ IMG_SYS_PHYADDR SysPAddr;
+
+ PVR_UNREFERENCED_PARAMETER(eDeviceType);
+
+
+ SysPAddr.uiAddr = DevPAddr.uiAddr;
+
+ return SysPAddr;
+}
+
+
+IMG_VOID SysRegisterExternalDevice(PVRSRV_DEVICE_NODE *psDeviceNode)
+{
+ PVR_UNREFERENCED_PARAMETER(psDeviceNode);
+}
+
+
+IMG_VOID SysRemoveExternalDevice(PVRSRV_DEVICE_NODE *psDeviceNode)
+{
+ PVR_UNREFERENCED_PARAMETER(psDeviceNode);
+}
+
+
+IMG_UINT32 SysGetInterruptSource(SYS_DATA *psSysData,
+ PVRSRV_DEVICE_NODE *psDeviceNode)
+{
+ PVR_UNREFERENCED_PARAMETER(psSysData);
+#if defined(NO_HARDWARE)
+
+ return 0xFFFFFFFF;
+#else
+
+ return psDeviceNode->ui32SOCInterruptBit;
+#endif
+}
+
+
+IMG_VOID SysClearInterrupts(SYS_DATA* psSysData, IMG_UINT32 ui32ClearBits)
+{
+ PVR_UNREFERENCED_PARAMETER(psSysData);
+ PVR_UNREFERENCED_PARAMETER(ui32ClearBits);
+
+
+ OSReadHWReg(((PVRSRV_SGXDEV_INFO *)gpsSGXDevNode->pvDevice)->pvRegsBaseKM,
+ EUR_CR_EVENT_HOST_CLEAR);
+}
+
+
+PVRSRV_ERROR SysSystemPrePowerState(PVRSRV_SYS_POWER_STATE eNewPowerState)
+{
+ PVRSRV_ERROR eError = PVRSRV_OK;
+
+ if (eNewPowerState == PVRSRV_SYS_POWER_STATE_D3)
+ {
+ PVR_TRACE(("SysSystemPrePowerState: Entering state D3"));
+
+#if defined(SYS_USING_INTERRUPTS)
+ if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR))
+ {
+#if defined(SYS_CUSTOM_POWERLOCK_WRAP)
+ IMG_BOOL bWrapped = WrapSystemPowerChange(&gsSysSpecificData);
+#endif
+ eError = OSUninstallDeviceLISR(gpsSysData);
+#if defined(SYS_CUSTOM_POWERLOCK_WRAP)
+ if (bWrapped)
+ {
+ UnwrapSystemPowerChange(&gsSysSpecificData);
+ }
+#endif
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysSystemPrePowerState: OSUninstallDeviceLISR failed (%d)", eError));
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR);
+ SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);
+ }
+#endif
+
+ if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS))
+ {
+ DisableSystemClocks(gpsSysData);
+
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS);
+ SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);
+ }
+ }
+
+ return eError;
+}
+
+
+PVRSRV_ERROR SysSystemPostPowerState(PVRSRV_SYS_POWER_STATE eNewPowerState)
+{
+ PVRSRV_ERROR eError = PVRSRV_OK;
+
+ if (eNewPowerState == PVRSRV_SYS_POWER_STATE_D0)
+ {
+ PVR_TRACE(("SysSystemPostPowerState: Entering state D0"));
+
+ if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS))
+ {
+ eError = EnableSystemClocksWrap(gpsSysData);
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysSystemPostPowerState: EnableSystemClocksWrap failed (%d)", eError));
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS);
+ SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS);
+ }
+
+#if defined(SYS_USING_INTERRUPTS)
+ if (SYS_SPECIFIC_DATA_TEST(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR))
+ {
+#if defined(SYS_CUSTOM_POWERLOCK_WRAP)
+ IMG_BOOL bWrapped = WrapSystemPowerChange(&gsSysSpecificData);
+#endif
+
+ eError = OSInstallDeviceLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ, "SGX ISR", gpsSGXDevNode);
+#if defined(SYS_CUSTOM_POWERLOCK_WRAP)
+ if (bWrapped)
+ {
+ UnwrapSystemPowerChange(&gsSysSpecificData);
+ }
+#endif
+ if (eError != PVRSRV_OK)
+ {
+ PVR_DPF((PVR_DBG_ERROR,"SysSystemPostPowerState: OSInstallDeviceLISR failed to install ISR (%d)", eError));
+ return eError;
+ }
+ SYS_SPECIFIC_DATA_SET(&gsSysSpecificData, SYS_SPECIFIC_DATA_ENABLE_LISR);
+ SYS_SPECIFIC_DATA_CLEAR(&gsSysSpecificData, SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR);
+ }
+#endif
+ }
+ return eError;
+}
+
+
+PVRSRV_ERROR SysDevicePrePowerState(IMG_UINT32 ui32DeviceIndex,
+ PVRSRV_DEV_POWER_STATE eNewPowerState,
+ PVRSRV_DEV_POWER_STATE eCurrentPowerState)
+{
+ PVR_UNREFERENCED_PARAMETER(eCurrentPowerState);
+
+ if (ui32DeviceIndex != gui32SGXDeviceID)
+ {
+ return PVRSRV_OK;
+ }
+
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ if (eNewPowerState == PVRSRV_DEV_POWER_STATE_OFF)
+ {
+ PVR_DPF((PVR_DBG_MESSAGE, "SysDevicePrePowerState: SGX Entering state D3"));
+ DisableSGXClocks(gpsSysData);
+ }
+#else
+ PVR_UNREFERENCED_PARAMETER(eNewPowerState );
+#endif
+ return PVRSRV_OK;
+}
+
+
+PVRSRV_ERROR SysDevicePostPowerState(IMG_UINT32 ui32DeviceIndex,
+ PVRSRV_DEV_POWER_STATE eNewPowerState,
+ PVRSRV_DEV_POWER_STATE eCurrentPowerState)
+{
+ PVRSRV_ERROR eError = PVRSRV_OK;
+
+ PVR_UNREFERENCED_PARAMETER(eNewPowerState);
+
+ if (ui32DeviceIndex != gui32SGXDeviceID)
+ {
+ return eError;
+ }
+
+#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
+ if (eCurrentPowerState == PVRSRV_DEV_POWER_STATE_OFF)
+ {
+ PVR_DPF((PVR_DBG_MESSAGE, "SysDevicePostPowerState: SGX Leaving state D3"));
+ eError = EnableSGXClocksWrap(gpsSysData);
+ }
+#else
+ PVR_UNREFERENCED_PARAMETER(eCurrentPowerState);
+#endif
+
+ return eError;
+}
+
+
+PVRSRV_ERROR SysOEMFunction ( IMG_UINT32 ui32ID,
+ IMG_VOID *pvIn,
+ IMG_UINT32 ulInSize,
+ IMG_VOID *pvOut,
+ IMG_UINT32 ulOutSize)
+{
+ PVR_UNREFERENCED_PARAMETER(ui32ID);
+ PVR_UNREFERENCED_PARAMETER(pvIn);
+ PVR_UNREFERENCED_PARAMETER(ulInSize);
+ PVR_UNREFERENCED_PARAMETER(pvOut);
+ PVR_UNREFERENCED_PARAMETER(ulOutSize);
+
+ if ((ui32ID == OEM_GET_EXT_FUNCS) &&
+ (ulOutSize == sizeof(PVRSRV_DC_OEM_JTABLE)))
+ {
+
+ PVRSRV_DC_OEM_JTABLE *psOEMJTable = (PVRSRV_DC_OEM_JTABLE*) pvOut;
+ psOEMJTable->pfnOEMBridgeDispatch = &PVRSRV_BridgeDispatchKM;
+ return PVRSRV_OK;
+ }
+
+ return PVRSRV_ERROR_INVALID_PARAMS;
+}
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#if !defined(__SOCCONFIG_H__)\r
-#define __SOCCONFIG_H__\r
-\r
-#include "syscommon.h"\r
-\r
-#define VS_PRODUCT_NAME "OMAP3630"\r
-\r
-#define SYS_SGX_CLOCK_SPEED 330000000\r
-#define SYS_SGX_HWRECOVERY_TIMEOUT_FREQ (100) \r
-#define SYS_SGX_PDS_TIMER_FREQ (1000) \r
-#define SYS_SGX_ACTIVE_POWER_LATENCY_MS (1)\r
-\r
-\r
-#define SYS_OMAP3430_VDD2_OPP3_SGX_CLOCK_SPEED SYS_SGX_CLOCK_SPEED\r
-#define SYS_OMAP3430_VDD2_OPP2_SGX_CLOCK_SPEED (SYS_SGX_CLOCK_SPEED / 2)\r
-\r
-#define SYS_OMAP3430_SGX_REGS_SYS_PHYS_BASE 0x56000000\r
-#define SYS_OMAP3430_SGX_REGS_SIZE 0x10000\r
-\r
-#define SYS_OMAP3430_SGX_IRQ 37 \r
-\r
-#define SYS_OMAP3430_GP11TIMER_ENABLE_SYS_PHYS_BASE 0x48048038\r
-#define SYS_OMAP3430_GP11TIMER_REGS_SYS_PHYS_BASE 0x4804803C\r
-#define SYS_OMAP3430_GP11TIMER_TSICR_SYS_PHYS_BASE 0x48048054\r
-\r
- \r
-#endif \r
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#if !defined(__SOCCONFIG_H__)
+#define __SOCCONFIG_H__
+
+#include "syscommon.h"
+
+#define VS_PRODUCT_NAME "OMAP4"
+
+#if defined(SGX_CLK_PER_192)
+#define SYS_SGX_CLOCK_SPEED 192000000
+#else
+ #if defined(SGX_CLK_CORE_DIV8)
+ #define SYS_SGX_CLOCK_SPEED 190464000
+ #else
+ #if defined(SGX_CLK_CORE_DIV5)
+ #define SYS_SGX_CLOCK_SPEED 304742400
+ #endif
+ #endif
+#endif
+
+#define SYS_SGX_HWRECOVERY_TIMEOUT_FREQ (100)
+#define SYS_SGX_PDS_TIMER_FREQ (1000)
+
+#if !defined(SYS_SGX_ACTIVE_POWER_LATENCY_MS)
+#define SYS_SGX_ACTIVE_POWER_LATENCY_MS (1)
+#endif
+
+
+#define SYS_OMAP4430_SGX_REGS_SYS_PHYS_BASE 0x56000000
+
+#define SYS_OMAP4430_SGX_REGS_SIZE 0xFFFF
+
+#define SYS_OMAP4430_SGX_IRQ 53
+
+#define SYS_OMAP4430_GP11TIMER_ENABLE_SYS_PHYS_BASE 0x48088038
+#define SYS_OMAP4430_GP11TIMER_REGS_SYS_PHYS_BASE 0x4808803C
+#define SYS_OMAP4430_GP11TIMER_TSICR_SYS_PHYS_BASE 0x48088054
+
+
+#endif
--- /dev/null
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#if !defined(__SYSINFO_H__)
+#define __SYSINFO_H__
+
+#if defined(PVR_LINUX_USING_WORKQUEUES)
+#define MAX_HW_TIME_US (1000000)
+#define WAIT_TRY_COUNT (20000)
+#else
+#define MAX_HW_TIME_US (500000)
+#define WAIT_TRY_COUNT (10000)
+#endif
+
+
+//#define SYS_DEVICE_COUNT 15
+#define SYS_DEVICE_COUNT 3
+
+#endif
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#if !defined(__SYSLOCAL_H__)\r
-#define __SYSLOCAL_H__\r
-\r
-#if defined(__linux__)\r
-\r
-#include <linux/version.h>\r
-#include <linux/clk.h>\r
-#include <linux/spinlock.h>\r
-#include <asm/atomic.h>\r
-\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))\r
-#include <linux/semaphore.h>\r
-#include <linux/resource.h>\r
-#else \r
-#include <asm/semaphore.h>\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))\r
-#include <asm/arch/resource.h>\r
-#endif \r
-#endif \r
-\r
-#endif \r
-\r
-#if defined (__cplusplus)\r
-extern "C" {\r
-#endif\r
-\r
- \r
- \r
-IMG_CHAR *SysCreateVersionString(IMG_CPU_PHYADDR sRegRegion);\r
-\r
-IMG_VOID DisableSystemClocks(SYS_DATA *psSysData);\r
-PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData);\r
-\r
-IMG_VOID DisableSGXClocks(SYS_DATA *psSysData);\r
-PVRSRV_ERROR EnableSGXClocks(SYS_DATA *psSysData);\r
-\r
-#define SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS 0x00000001\r
-#define SYS_SPECIFIC_DATA_ENABLE_LISR 0x00000002\r
-#define SYS_SPECIFIC_DATA_ENABLE_MISR 0x00000004\r
-#define SYS_SPECIFIC_DATA_ENABLE_ENVDATA 0x00000008\r
-#define SYS_SPECIFIC_DATA_ENABLE_LOCDEV 0x00000010\r
-#define SYS_SPECIFIC_DATA_ENABLE_REGDEV 0x00000020\r
-#define SYS_SPECIFIC_DATA_ENABLE_PDUMPINIT 0x00000040\r
-#define SYS_SPECIFIC_DATA_ENABLE_INITDEV 0x00000080\r
-#define SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV 0x00000100\r
-\r
-#define SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR 0x00000200\r
-#define SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS 0x00000400\r
-\r
-#define SYS_SPECIFIC_DATA_SET(psSysSpecData, flag) ((IMG_VOID)((psSysSpecData)->ui32SysSpecificData |= (flag)))\r
-\r
-#define SYS_SPECIFIC_DATA_CLEAR(psSysSpecData, flag) ((IMG_VOID)((psSysSpecData)->ui32SysSpecificData &= ~(flag)))\r
-\r
-#define SYS_SPECIFIC_DATA_TEST(psSysSpecData, flag) (((psSysSpecData)->ui32SysSpecificData & (flag)) != 0)\r
- \r
-typedef struct _SYS_SPECIFIC_DATA_TAG_\r
-{\r
- IMG_UINT32 ui32SysSpecificData;\r
- PVRSRV_DEVICE_NODE *psSGXDevNode;\r
- IMG_BOOL bSGXInitComplete;\r
-#if !defined(__linux__)\r
- IMG_BOOL bSGXClocksEnabled;\r
-#endif\r
- IMG_UINT32 ui32SrcClockDiv;\r
-#if defined(__linux__)\r
- IMG_BOOL bSysClocksOneTimeInit;\r
- IMG_BOOL bConstraintNotificationsEnabled;\r
- atomic_t sSGXClocksEnabled;\r
- spinlock_t sPowerLock;\r
- atomic_t sPowerLockCPU;\r
- spinlock_t sNotifyLock;\r
- atomic_t sNotifyLockCPU;\r
- IMG_BOOL bCallVDD2PostFunc;\r
-\r
- struct clk *psCORE_CK;\r
- struct clk *psSGX_FCK;\r
- struct clk *psSGX_ICK;\r
- struct clk *psMPU_CK;\r
-#if defined(DEBUG) || defined(TIMING)\r
- struct clk *psGPT11_FCK;\r
- struct clk *psGPT11_ICK;\r
-#endif\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) \r
- struct constraint_handle *pVdd2Handle;\r
-#endif \r
-#endif \r
-} SYS_SPECIFIC_DATA;\r
-\r
-extern SYS_SPECIFIC_DATA *gpsSysSpecificData;\r
-\r
-#if defined(SYS_CUSTOM_POWERLOCK_WRAP)\r
-IMG_BOOL WrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData);\r
-IMG_VOID UnwrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData);\r
-#endif\r
-\r
-#if defined(__cplusplus)\r
-}\r
-#endif\r
-\r
-#endif \r
-\r
-\r
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#if !defined(__SYSLOCAL_H__)
+#define __SYSLOCAL_H__
+
+#if defined(__linux__)
+
+#include <linux/version.h>
+#include <linux/clk.h>
+#if defined(PVR_LINUX_USING_WORKQUEUES)
+#include <linux/mutex.h>
+#else
+#include <linux/spinlock.h>
+#endif
+#include <asm/atomic.h>
+
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))
+#include <linux/semaphore.h>
+#include <linux/resource.h>
+#else
+#include <asm/semaphore.h>
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))
+#include <asm/arch/resource.h>
+#endif
+#endif
+
+#endif
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+
+
+IMG_CHAR *SysCreateVersionString(IMG_CPU_PHYADDR sRegRegion);
+
+IMG_VOID DisableSystemClocks(SYS_DATA *psSysData);
+PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData);
+
+IMG_VOID DisableSGXClocks(SYS_DATA *psSysData);
+PVRSRV_ERROR EnableSGXClocks(SYS_DATA *psSysData);
+
+#define SYS_SPECIFIC_DATA_ENABLE_SYSCLOCKS 0x00000001
+#define SYS_SPECIFIC_DATA_ENABLE_LISR 0x00000002
+#define SYS_SPECIFIC_DATA_ENABLE_MISR 0x00000004
+#define SYS_SPECIFIC_DATA_ENABLE_ENVDATA 0x00000008
+#define SYS_SPECIFIC_DATA_ENABLE_LOCDEV 0x00000010
+#define SYS_SPECIFIC_DATA_ENABLE_REGDEV 0x00000020
+#define SYS_SPECIFIC_DATA_ENABLE_PDUMPINIT 0x00000040
+#define SYS_SPECIFIC_DATA_ENABLE_INITDEV 0x00000080
+#define SYS_SPECIFIC_DATA_ENABLE_LOCATEDEV 0x00000100
+
+#define SYS_SPECIFIC_DATA_PM_UNINSTALL_LISR 0x00000200
+#define SYS_SPECIFIC_DATA_PM_DISABLE_SYSCLOCKS 0x00000400
+#define SYS_SPECIFIC_DATA_ENABLE_OCPREGS 0x00000800
+
+#define SYS_SPECIFIC_DATA_SET(psSysSpecData, flag) ((IMG_VOID)((psSysSpecData)->ui32SysSpecificData |= (flag)))
+
+#define SYS_SPECIFIC_DATA_CLEAR(psSysSpecData, flag) ((IMG_VOID)((psSysSpecData)->ui32SysSpecificData &= ~(flag)))
+
+#define SYS_SPECIFIC_DATA_TEST(psSysSpecData, flag) (((psSysSpecData)->ui32SysSpecificData & (flag)) != 0)
+
+typedef struct _SYS_SPECIFIC_DATA_TAG_
+{
+ IMG_UINT32 ui32SysSpecificData;
+ PVRSRV_DEVICE_NODE *psSGXDevNode;
+ IMG_BOOL bSGXInitComplete;
+#if !defined(__linux__)
+ IMG_BOOL bSGXClocksEnabled;
+#endif
+ IMG_UINT32 ui32SrcClockDiv;
+#if defined(__linux__)
+ IMG_BOOL bSysClocksOneTimeInit;
+ atomic_t sSGXClocksEnabled;
+#if defined(PVR_LINUX_USING_WORKQUEUES)
+ struct mutex sPowerLock;
+#else
+ IMG_BOOL bConstraintNotificationsEnabled;
+ spinlock_t sPowerLock;
+ atomic_t sPowerLockCPU;
+ spinlock_t sNotifyLock;
+ atomic_t sNotifyLockCPU;
+ IMG_BOOL bCallVDD2PostFunc;
+#endif
+ struct clk *psCORE_CK;
+ struct clk *psSGX_FCK;
+ struct clk *psSGX_ICK;
+ struct clk *psMPU_CK;
+#if defined(DEBUG) || defined(TIMING)
+ struct clk *psGPT11_FCK;
+ struct clk *psGPT11_ICK;
+#endif
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))
+ struct constraint_handle *pVdd2Handle;
+#endif
+#endif
+} SYS_SPECIFIC_DATA;
+
+extern SYS_SPECIFIC_DATA *gpsSysSpecificData;
+
+#if defined(SYS_CUSTOM_POWERLOCK_WRAP)
+IMG_BOOL WrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData);
+IMG_VOID UnwrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData);
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
+
+
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#if defined(__linux__)\r
-#include "sysutils_linux.c"\r
-#endif\r
-\r
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful but, except
+ * as otherwise stated in writing, without any warranty; without even the
+ * implied warranty of merchantability or fitness for a particular purpose.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
+ *
+ ******************************************************************************/
+
+#if defined(__linux__)
+#include "sysutils_linux.c"
+#endif
#error "PVR_LINUX_USING_WORKQUEUES must be defined"
#endif
+#if ((defined(DEBUG) || defined(TIMING)) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)))
+//#define PVR_OMAP4_TIMING_PRCM
+#endif
+
#define ONE_MHZ 1000000
#define HZ_TO_MHZ(m) ((m) / ONE_MHZ)
#else
PVR_ASSERT(atomic_read(&gpsSysSpecificData->sSGXClocksEnabled) != 0);
+#if defined(OMAP4_PRCM_ENABLE)
rate = clk_get_rate(gpsSysSpecificData->psSGX_FCK);
+#else
+ rate = SYS_SGX_CLOCK_SPEED;
+#endif
PVR_ASSERT(rate != 0);
#endif
psTimingInfo->ui32CoreClockSpeed = rate;
{
#if !defined(NO_HARDWARE)
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
+#if defined(OMAP4_PRCM_ENABLE)
long lNewRate;
long lRate;
IMG_INT res;
+#endif
if (atomic_read(&psSysSpecData->sSGXClocksEnabled) != 0)
PVR_DPF((PVR_DBG_MESSAGE, "EnableSGXClocks: Enabling SGX Clocks"));
+#if defined(OMAP4_PRCM_ENABLE)
+
#if defined(DEBUG)
{
-
IMG_UINT32 rate = clk_get_rate(psSysSpecData->psMPU_CK);
PVR_DPF((PVR_DBG_MESSAGE, "EnableSGXClocks: CPU Clock is %dMhz", HZ_TO_MHZ(rate)));
}
}
#endif
+#endif
+
atomic_set(&psSysSpecData->sSGXClocksEnabled, 1);
PVR_DPF((PVR_DBG_MESSAGE, "DisableSGXClocks: Disabling SGX Clocks"));
+#if defined(OMAP4_PRCM_ENABLE)
if (psSysSpecData->psSGX_ICK)
{
clk_disable(psSysSpecData->psSGX_ICK);
{
clk_disable(psSysSpecData->psSGX_FCK);
}
+#endif
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)
{
+
+ PVR_TRACE(("Enter Enabling System Clocks"));
+ PVRSRV_ERROR eError;
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
+#if (defined(OMAP4_PRCM_ENABLE) || defined(PVR_OMAP4_TIMING_PRCM))
struct clk *psCLK;
IMG_INT res;
- PVRSRV_ERROR eError;
-
-#if defined(DEBUG) || defined(TIMING)
- IMG_INT rate;
+#endif
+#if defined(PVR_OMAP4_TIMING_PRCM)
struct clk *sys_ck;
+ IMG_INT rate;
+#endif
+
+#if (defined(DEBUG) || defined(TIMING))
IMG_CPU_PHYADDR TimerRegPhysBase;
IMG_HANDLE hTimerEnable;
IMG_UINT32 *pui32TimerEnable;
-
#endif
PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
+#if defined(OMAP4_PRCM_ENABLE)
psCLK = clk_get(NULL, SGX_PARENT_CLOCK);
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't set SGX parent clock (%d)", res));
goto ExitError;
}
+#endif
psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
}
-#if defined(DEBUG) || defined(TIMING)
-
- psCLK = clk_get(NULL, "gpt11_fck");
+#if (defined(DEBUG) || defined(TIMING))
+
+#if defined(PVR_OMAP4_TIMING_PRCM)
+psCLK = clk_get(NULL, "timer11_fck");
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get GPTIMER11 functional clock"));
}
psSysSpecData->psGPT11_FCK = psCLK;
- psCLK = clk_get(NULL, "gpt11_ick");
+ PVR_TRACE(("EnableSystemClocks: After Timer 11 clk_get"));
+/* psCLK = clk_get(NULL, "gpt11_ick");
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get GPTIMER11 interface clock"));
goto ExitUnRegisterConstraintNotifications;
}
psSysSpecData->psGPT11_ICK = psCLK;
-
- sys_ck = clk_get(NULL, "sys_ck");
+*/
+ sys_ck = clk_get(NULL, "sys_clkin_ck");
if (IS_ERR(sys_ck))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get System clock"));
goto ExitUnRegisterConstraintNotifications;
}
+ PVR_TRACE(("EnableSystemClocks: After system clk_get"));
if(clk_get_parent(psSysSpecData->psGPT11_FCK) != sys_ck)
{
PVR_TRACE(("Setting GPTIMER11 parent to System Clock"));
}
}
+ PVR_TRACE(("EnableSystemClocks: After set parent "));
rate = clk_get_rate(psSysSpecData->psGPT11_FCK);
PVR_TRACE(("GPTIMER11 clock is %dMHz", HZ_TO_MHZ(rate)));
goto ExitUnRegisterConstraintNotifications;
}
- res = clk_enable(psSysSpecData->psGPT11_ICK);
+ PVR_TRACE(("EnableSystemClocks: After clk enable "));
+/* res = clk_enable(psSysSpecData->psGPT11_ICK);
if (res < 0)
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't enable GPTIMER11 interface clock (%d)", res));
goto ExitDisableGPT11FCK;
}
+*/
+#endif
-
- TimerRegPhysBase.uiAddr = SYS_TI81xx_GP7TIMER_TSICR_SYS_PHYS_BASE;
+ TimerRegPhysBase.uiAddr = SYS_OMAP4430_GP11TIMER_TSICR_SYS_PHYS_BASE;
pui32TimerEnable = OSMapPhysToLin(TimerRegPhysBase,
4,
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
&hTimerEnable);
+ PVR_TRACE(("EnableSystemClocks: After OSMapPhystoLin "));
if (pui32TimerEnable == IMG_NULL)
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: OSMapPhysToLin failed"));
goto ExitDisableGPT11ICK;
}
- rate = *pui32TimerEnable;
- if(!(rate & 4))
+ if(!(*pui32TimerEnable & 4))
{
PVR_TRACE(("Setting GPTIMER11 mode to posted (currently is non-posted)"));
- *pui32TimerEnable = rate | 4;
+ *pui32TimerEnable |= 4;
}
OSUnMapPhysToLin(pui32TimerEnable,
4,
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
hTimerEnable);
-
- TimerRegPhysBase.uiAddr = SYS_TI81xx_GP7TIMER_ENABLE_SYS_PHYS_BASE;
+ TimerRegPhysBase.uiAddr = SYS_OMAP4430_GP11TIMER_ENABLE_SYS_PHYS_BASE;
pui32TimerEnable = OSMapPhysToLin(TimerRegPhysBase,
4,
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
*pui32TimerEnable = 3;
-
OSUnMapPhysToLin(pui32TimerEnable,
4,
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
hTimerEnable);
-
-#endif
-
+#endif
+ PVR_TRACE(("Exit Enabling System Clocks"));
eError = PVRSRV_OK;
goto Exit;
-#if defined(DEBUG) || defined(TIMING)
+#if (defined(DEBUG) || defined(TIMING))
ExitDisableGPT11ICK:
- clk_disable(psSysSpecData->psGPT11_ICK);
+#if defined(PVR_OMAP4_TIMING_PRCM)
+// clk_disable(psSysSpecData->psGPT11_ICK);
ExitDisableGPT11FCK:
clk_disable(psSysSpecData->psGPT11_FCK);
ExitUnRegisterConstraintNotifications:
#endif
+#endif
+#if defined(OMAP4_PRCM_ENABLE)
ExitError:
+#endif
eError = PVRSRV_ERROR_DISABLE_CLOCK_FAILURE;
Exit:
return eError;
IMG_VOID DisableSystemClocks(SYS_DATA *psSysData)
{
-#if defined(DEBUG) || defined(TIMING)
+#if (defined(DEBUG) || defined(TIMING))
+#if defined(PVR_OMAP4_TIMING_PRCM)
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
+#endif
IMG_CPU_PHYADDR TimerRegPhysBase;
IMG_HANDLE hTimerDisable;
IMG_UINT32 *pui32TimerDisable;
DisableSGXClocks(psSysData);
-#if defined(DEBUG) || defined(TIMING)
-
- TimerRegPhysBase.uiAddr = SYS_TI81xx_GP7TIMER_ENABLE_SYS_PHYS_BASE;
+#if (defined(DEBUG) || defined(TIMING))
+ TimerRegPhysBase.uiAddr = SYS_OMAP4430_GP11TIMER_ENABLE_SYS_PHYS_BASE;
pui32TimerDisable = OSMapPhysToLin(TimerRegPhysBase,
4,
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
&hTimerDisable);
-
if (pui32TimerDisable == IMG_NULL)
{
PVR_DPF((PVR_DBG_ERROR, "DisableSystemClocks: OSMapPhysToLin failed"));
PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,
hTimerDisable);
}
-
- clk_disable(psSysSpecData->psGPT11_ICK);
+#if defined(PVR_OMAP4_TIMING_PRCM)
+// clk_disable(psSysSpecData->psGPT11_ICK);
clk_disable(psSysSpecData->psGPT11_FCK);
-
+#endif
#endif
}
+++ /dev/null
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- * \r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- * \r
- * This program is distributed in the hope it will be useful but, except \r
- * as otherwise stated in writing, without any warranty; without even the \r
- * implied warranty of merchantability or fitness for a particular purpose. \r
- * See the GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- * \r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK \r
- *\r
- ******************************************************************************/\r
-\r
-#if !defined(__SYSINFO_H__)\r
-#define __SYSINFO_H__\r
-\r
-#define MAX_HW_TIME_US (500000)\r
-#define WAIT_TRY_COUNT (10000)\r
-\r
-typedef enum _SYS_DEVICE_TYPE_\r
-{\r
- SYS_DEVICE_SGX = 0,\r
-\r
- SYS_DEVICE_FORCE_I16 = 0x7fff\r
-\r
-} SYS_DEVICE_TYPE;\r
-\r
-#define SYS_DEVICE_COUNT 3 \r
-\r
-#define PRM_REG32(offset) (offset)\r
-#define CM_REG32(offset) (offset)\r
-\r
-#define CM_FCLKEN_SGX CM_REG32(0xB00)\r
-#define CM_FCLKEN_SGX_EN_3D 0x00000002\r
-\r
-#define CM_ICLKEN_SGX CM_REG32(0xB10)\r
-#define CM_ICLKEN_SGX_EN_SGX 0x00000001\r
-\r
-#define CM_IDLEST_SGX CM_REG32(0xB20)\r
-#define CM_IDLEST_SGX_ST_SGX 0x00000001\r
-\r
-#define CM_CLKSEL_SGX CM_REG32(0xB40)\r
-#define CM_CLKSEL_SGX_MASK 0x0000000f\r
-#define CM_CLKSEL_SGX_L3DIV3 0x00000000\r
-#define CM_CLKSEL_SGX_L3DIV4 0x00000001\r
-#define CM_CLKSEL_SGX_L3DIV6 0x00000002\r
-#define CM_CLKSEL_SGX_96M 0x00000003\r
-\r
-#define CM_SLEEPDEP_SGX CM_REG32(0xB44)\r
-#define CM_CLKSTCTRL_SGX CM_REG32(0xB48)\r
-#define CM_CLKSTCTRL_SGX_AUTOSTATE 0x00008001\r
-\r
-#define CM_CLKSTST_SGX CM_REG32(0xB4C)\r
-#define CM_CLKSTST_SGX_STATUS_VALID 0x00000001\r
-\r
-#define RM_RSTST_SGX PRM_REG32(0xB58)\r
-#define RM_RSTST_SGX_RST_MASK 0x0000000F\r
-#define RM_RSTST_SGX_COREDOMAINWKUP_RST 0x00000008\r
-#define RM_RSTST_SGX_DOMAINWKUP_RST 0x00000004\r
-#define RM_RSTST_SGX_GLOBALWARM_RST 0x00000002\r
-#define RM_RSTST_SGX_GLOBALCOLD_RST 0x00000001\r
-\r
-#define PM_WKDEP_SGX PRM_REG32(0xBC8)\r
-#define PM_WKDEP_SGX_EN_WAKEUP 0x00000010\r
-#define PM_WKDEP_SGX_EN_MPU 0x00000002\r
-#define PM_WKDEP_SGX_EN_CORE 0x00000001\r
-\r
-#define PM_PWSTCTRL_SGX PRM_REG32(0xBE0)\r
-#define PM_PWSTCTRL_SGX_POWERSTATE_MASK 0x00000003\r
-#define PM_PWSTCTRL_SGX_OFF 0x00000000\r
-#define PM_PWSTCTRL_SGX_RETENTION 0x00000001\r
-#define PM_PWSTCTRL_SGX_ON 0x00000003\r
-\r
-#define PM_PWSTST_SGX PRM_REG32(0xBE4)\r
-#define PM_PWSTST_SGX_INTRANSITION 0x00100000\r
-#define PM_PWSTST_SGX_CLKACTIVITY 0x00080000\r
-#define PM_PWSTST_SGX_POWERSTATE_MASK 0x00000003\r
-#define PM_PWSTST_SGX_OFF 0x00000003\r
-#define PM_PWSTST_SGX_RETENTION 0x00000001\r
-#define PM_PWSTST_SGX_ON 0x00000000\r
-\r
-#define PM_PREPWSTST_SGX PRM_REG32(0xBE8)\r
-\r
-\r
-#endif \r
+++ /dev/null
-/**********************************************************************\r
- *\r
- * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.\r
- *\r
- * This program is free software; you can redistribute it and/or modify it\r
- * under the terms and conditions of the GNU General Public License,\r
- * version 2, as published by the Free Software Foundation.\r
- *\r
- * This program is distributed in the hope it will be useful but, except\r
- * as otherwise stated in writing, without any warranty; without even the\r
- * implied warranty of merchantability or fitness for a particular purpose.\r
- * See the GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License along with\r
- * this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.\r
- *\r
- * The full GNU General Public License is included in this distribution in\r
- * the file called "COPYING".\r
- *\r
- * Contact Information:\r
- * Imagination Technologies Ltd. <gpl-support@imgtec.com>\r
- * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK\r
- *\r
- ******************************************************************************/\r
-\r
-#include <linux/version.h>\r
-#include <linux/clk.h>\r
-#include <linux/err.h>\r
-#include <linux/hardirq.h>\r
-#include <linux/spinlock.h>\r
-#include <asm/bug.h>\r
-#include <linux/platform_device.h>\r
-\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,31))\r
-#include <linux/semaphore.h>\r
-//#include <plat/resource.h>\r
-#include <plat/omap-pm.h>\r
-#else\r
-\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))\r
-#include <linux/semaphore.h>\r
-#include <mach/resource.h>\r
-#include <mach/omap-pm.h>\r
-#else\r
-#include <asm/semaphore.h>\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))\r
-#include <asm/arch/resource.h>\r
-#endif\r
-#endif\r
-#endif\r
-\r
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27)) && \\r
- (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,29))\r
-#define CONSTRAINT_NOTIFICATIONS\r
-#endif\r
-#include "sgxdefs.h"\r
-#include "services_headers.h"\r
-#include "sysinfo.h"\r
-#include "sgxapi_km.h"\r
-#include "sysconfig.h"\r
-#include "sgxinfokm.h"\r
-#include "syslocal.h"\r
-void set_vdd2_constraint(void);\r
-void remove_vdd2_constraint(void);\r
-#define ONE_MHZ 1000000\r
-#define HZ_TO_MHZ(m) ((m) / ONE_MHZ)\r
-\r
-#if defined(SUPPORT_OMAP3630_SGXFCLK_96M)\r
-#define SGX_PARENT_CLOCK "cm_96m_fck"\r
-#elif defined(SUPPORT_OMAP3630_SGXFCLK_192M)\r
-#define SGX_PARENT_CLOCK "omap_192m_alwon_ck"\r
-#elif defined(SUPPORT_OMAP3630_SGXFCLK_corex2)\r
-#define SGX_PARENT_CLOCK "corex2_fck"\r
-#else\r
-#define SGX_PARENT_CLOCK "core_ck"\r
-#endif\r
-\r
-#if !defined(PDUMP) && !defined(NO_HARDWARE)\r
-struct sgx_platform_data {\r
- void(*set_min_bus_tput)(struct device *dev, u8 agent_id, unsigned long r);\r
-};\r
-\r
-static struct sgx_platform_data pdata = {\r
-\r
- //.set_min_bus_tput = &omap_pm_set_min_bus_tput,\r
- .set_min_bus_tput = NULL,\r
-};\r
-\r
-static struct platform_device sgx_dev = {\r
- .name = "sgx_dev",\r
- .id = 1,\r
- .dev.platform_data = &pdata,\r
-};\r
-void set_vdd2_constraint(void)\r
-{\r
- if(pdata.set_min_bus_tput){\r
- pdata.set_min_bus_tput(&(sgx_dev.dev), OCP_INITIATOR_AGENT,800000);\r
- }\r
-}\r
-\r
-void remove_vdd2_constraint(void)\r
-{\r
- if(pdata.set_min_bus_tput)\r
- pdata.set_min_bus_tput(&(sgx_dev.dev), OCP_INITIATOR_AGENT, 0);\r
-\r
-}\r
-#endif\r
-#if !defined(PDUMP) && !defined(NO_HARDWARE)\r
-static IMG_BOOL PowerLockWrappedOnCPU(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- IMG_INT iCPU;\r
- IMG_BOOL bLocked = IMG_FALSE;\r
-\r
- if (!in_interrupt())\r
- {\r
- iCPU = get_cpu();\r
- bLocked = (iCPU == atomic_read(&psSysSpecData->sPowerLockCPU));\r
-\r
- put_cpu();\r
- }\r
-\r
- return bLocked;\r
-}\r
-\r
-static IMG_VOID PowerLockWrap(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- IMG_INT iCPU;\r
-\r
- if (!in_interrupt())\r
- {\r
-\r
- iCPU = get_cpu();\r
-\r
-\r
- PVR_ASSERT(iCPU != -1);\r
-\r
- PVR_ASSERT(!PowerLockWrappedOnCPU(psSysSpecData));\r
-\r
- spin_lock(&psSysSpecData->sPowerLock);\r
-\r
- atomic_set(&psSysSpecData->sPowerLockCPU, iCPU);\r
- }\r
-}\r
-\r
-static IMG_VOID PowerLockUnwrap(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- if (!in_interrupt())\r
- {\r
- PVR_ASSERT(PowerLockWrappedOnCPU(psSysSpecData));\r
-\r
- atomic_set(&psSysSpecData->sPowerLockCPU, -1);\r
-\r
- spin_unlock(&psSysSpecData->sPowerLock);\r
-\r
- put_cpu();\r
- }\r
-}\r
-\r
-PVRSRV_ERROR SysPowerLockWrap(SYS_DATA *psSysData)\r
-{\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
-\r
- PowerLockWrap(psSysSpecData);\r
-\r
- return PVRSRV_OK;\r
-}\r
-\r
-IMG_VOID SysPowerLockUnwrap(SYS_DATA *psSysData)\r
-{\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
-\r
- PowerLockUnwrap(psSysSpecData);\r
-}\r
-#else\r
-static IMG_BOOL PowerLockWrappedOnCPU(SYS_SPECIFIC_DATA unref__ *psSysSpecData)\r
-{\r
- return IMG_FALSE;\r
-}\r
-\r
-static IMG_VOID PowerLockWrap(SYS_SPECIFIC_DATA unref__ *psSysSpecData)\r
-{\r
-}\r
-\r
-static IMG_VOID PowerLockUnwrap(SYS_SPECIFIC_DATA unref__ *psSysSpecData)\r
-{\r
-}\r
-\r
-PVRSRV_ERROR SysPowerLockWrap(SYS_DATA unref__ *psSysData)\r
-{\r
- return PVRSRV_OK;\r
-}\r
-\r
-IMG_VOID SysPowerLockUnwrap(SYS_DATA unref__ *psSysData)\r
-{\r
-}\r
-#endif\r
-\r
-IMG_BOOL WrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- IMG_BOOL bPowerLock = PowerLockWrappedOnCPU(psSysSpecData);\r
-\r
- if (bPowerLock)\r
- {\r
- PowerLockUnwrap(psSysSpecData);\r
- }\r
-\r
- return bPowerLock;\r
-}\r
-\r
-IMG_VOID UnwrapSystemPowerChange(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- PowerLockWrap(psSysSpecData);\r
-}\r
-\r
-static inline IMG_UINT32 scale_by_rate(IMG_UINT32 val, IMG_UINT32 rate1, IMG_UINT32 rate2)\r
-{\r
- if (rate1 >= rate2)\r
- {\r
- return val * (rate1 / rate2);\r
- }\r
-\r
- return val / (rate2 / rate1);\r
-}\r
-\r
-static inline IMG_UINT32 scale_prop_to_SGX_clock(IMG_UINT32 val, IMG_UINT32 rate)\r
-{\r
- return scale_by_rate(val, rate, SYS_SGX_CLOCK_SPEED);\r
-}\r
-\r
-static inline IMG_UINT32 scale_inv_prop_to_SGX_clock(IMG_UINT32 val, IMG_UINT32 rate)\r
-{\r
- return scale_by_rate(val, SYS_SGX_CLOCK_SPEED, rate);\r
-}\r
-\r
-IMG_VOID SysGetSGXTimingInformation(SGX_TIMING_INFORMATION *psTimingInfo)\r
-{\r
- IMG_UINT32 rate;\r
-\r
-#if defined(NO_HARDWARE)\r
- rate = SYS_SGX_CLOCK_SPEED;\r
-#else\r
- PVR_ASSERT(atomic_read(&gpsSysSpecificData->sSGXClocksEnabled) != 0);\r
-\r
- rate = clk_get_rate(gpsSysSpecificData->psSGX_FCK);\r
- PVR_ASSERT(rate != 0);\r
-#endif\r
- psTimingInfo->ui32CoreClockSpeed = rate;\r
- psTimingInfo->ui32HWRecoveryFreq = scale_prop_to_SGX_clock(SYS_SGX_HWRECOVERY_TIMEOUT_FREQ, rate);\r
- psTimingInfo->ui32uKernelFreq = scale_prop_to_SGX_clock(SYS_SGX_PDS_TIMER_FREQ, rate);\r
- psTimingInfo->ui32ActivePowManLatencyms = SYS_SGX_ACTIVE_POWER_LATENCY_MS;\r
-}\r
-\r
-#if defined(CONSTRAINT_NOTIFICATIONS)\r
-#if !defined(SGX_DYNAMIC_TIMING_INFO)\r
-#error "SGX_DYNAMIC_TIMING_INFO must be defined for this platform"\r
-#endif\r
-\r
-#if !defined(PDUMP) && !defined(NO_HARDWARE)\r
-static inline IMG_BOOL ConstraintNotificationsEnabled(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- return (atomic_read(&psSysSpecData->sSGXClocksEnabled) != 0) && psSysSpecData->bSGXInitComplete && psSysSpecData->bConstraintNotificationsEnabled;\r
-\r
-}\r
-\r
-static IMG_BOOL NotifyLockedOnCPU(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- IMG_INT iCPU = get_cpu();\r
- IMG_BOOL bLocked = (iCPU == atomic_read(&psSysSpecData->sNotifyLockCPU));\r
-\r
- put_cpu();\r
-\r
- return bLocked;\r
-}\r
-\r
-static IMG_VOID NotifyLock(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- IMG_INT iCPU;\r
-\r
- BUG_ON(in_interrupt());\r
-\r
-\r
- iCPU = get_cpu();\r
-\r
-\r
- PVR_ASSERT(iCPU != -1);\r
-\r
- PVR_ASSERT(!NotifyLockedOnCPU(psSysSpecData));\r
-\r
- spin_lock(&psSysSpecData->sNotifyLock);\r
-\r
- atomic_set(&psSysSpecData->sNotifyLockCPU, iCPU);\r
-\r
-}\r
-\r
-static IMG_VOID NotifyUnlock(SYS_SPECIFIC_DATA *psSysSpecData)\r
-{\r
- PVR_ASSERT(NotifyLockedOnCPU(psSysSpecData));\r
-\r
- atomic_set(&psSysSpecData->sNotifyLockCPU, -1);\r
-\r
- spin_unlock(&psSysSpecData->sNotifyLock);\r
-\r
- put_cpu();\r
-}\r
-\r
-static IMG_INT VDD2PostFunc(struct notifier_block *n, IMG_UINT32 event, IMG_VOID *ptr)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(n);\r
- PVR_UNREFERENCED_PARAMETER(event);\r
- PVR_UNREFERENCED_PARAMETER(ptr);\r
-\r
- if (in_interrupt())\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "%s Called in interrupt context. Ignoring.", __FUNCTION__));\r
- return 0;\r
- }\r
-\r
-\r
- if (!NotifyLockedOnCPU(gpsSysSpecificData))\r
- {\r
- return 0;\r
- }\r
-\r
-#if defined(DEBUG)\r
- if (ConstraintNotificationsEnabled(gpsSysSpecificData))\r
- {\r
- IMG_UINT32 rate;\r
-\r
- rate = clk_get_rate(gpsSysSpecificData->psSGX_FCK);\r
-\r
- PVR_ASSERT(rate != 0);\r
-\r
- PVR_DPF((PVR_DBG_MESSAGE, "%s: SGX clock rate: %dMHz", __FUNCTION__, HZ_TO_MHZ(rate)));\r
- }\r
-#endif\r
- if (gpsSysSpecificData->bCallVDD2PostFunc)\r
- {\r
- PVRSRVDevicePostClockSpeedChange(gpsSysSpecificData->psSGXDevNode->sDevId.ui32DeviceIndex, IMG_TRUE, IMG_NULL);\r
-\r
- gpsSysSpecificData->bCallVDD2PostFunc = IMG_FALSE;\r
- }\r
- else\r
- {\r
- if (ConstraintNotificationsEnabled(gpsSysSpecificData))\r
- {\r
- PVR_TRACE(("%s: Not calling PVR clock speed notification functions", __FUNCTION__));\r
- }\r
- }\r
-\r
- NotifyUnlock(gpsSysSpecificData);\r
-\r
- return 0;\r
-}\r
-\r
-static IMG_INT VDD2PreFunc(struct notifier_block *n, IMG_UINT32 event, IMG_VOID *ptr)\r
-{\r
- PVR_UNREFERENCED_PARAMETER(n);\r
- PVR_UNREFERENCED_PARAMETER(event);\r
- PVR_UNREFERENCED_PARAMETER(ptr);\r
-\r
- if (in_interrupt())\r
- {\r
- PVR_DPF((PVR_DBG_WARNING, "%s Called in interrupt context. Ignoring.", __FUNCTION__));\r
- return 0;\r
- }\r
-\r
- if (PowerLockWrappedOnCPU(gpsSysSpecificData))\r
- {\r
- PVR_DPF((PVR_DBG_WARNING, "%s Called from within a power transition. Ignoring.", __FUNCTION__));\r
- return 0;\r
- }\r
-\r
- NotifyLock(gpsSysSpecificData);\r
-\r
- PVR_ASSERT(!gpsSysSpecificData->bCallVDD2PostFunc);\r
-\r
- if (ConstraintNotificationsEnabled(gpsSysSpecificData))\r
- {\r
- PVRSRV_ERROR eError;\r
-\r
- eError = PVRSRVDevicePreClockSpeedChange(gpsSysSpecificData->psSGXDevNode->sDevId.ui32DeviceIndex, IMG_TRUE, IMG_NULL);\r
-\r
- gpsSysSpecificData->bCallVDD2PostFunc = (eError == PVRSRV_OK);\r
-\r
- }\r
-\r
- return 0;\r
-}\r
-static IMG_VOID RegisterConstraintNotifications(IMG_VOID)\r
-{\r
- PVR_TRACE(("Registering constraint notifications"));\r
-\r
- PVR_ASSERT(!gpsSysSpecificData->bConstraintNotificationsEnabled);\r
-\r
-\r
- NotifyLock(gpsSysSpecificData);\r
- gpsSysSpecificData->bConstraintNotificationsEnabled = IMG_TRUE;\r
- NotifyUnlock(gpsSysSpecificData);\r
-\r
- PVR_TRACE(("VDD2 constraint notifications registered"));\r
-}\r
-\r
-static IMG_VOID UnRegisterConstraintNotifications(IMG_VOID)\r
-{\r
- PVR_TRACE(("Unregistering constraint notifications"));\r
-\r
-\r
- NotifyLock(gpsSysSpecificData);\r
- gpsSysSpecificData->bConstraintNotificationsEnabled = IMG_FALSE;\r
- NotifyUnlock(gpsSysSpecificData);\r
-\r
-}\r
-#else\r
-static IMG_VOID RegisterConstraintNotifications(IMG_VOID)\r
-{\r
-}\r
-\r
-static IMG_VOID UnRegisterConstraintNotifications(IMG_VOID)\r
-{\r
-}\r
-#endif\r
-#endif\r
-\r
-PVRSRV_ERROR EnableSGXClocks(SYS_DATA *psSysData)\r
-{\r
-#if !defined(NO_HARDWARE)\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
- long lNewRate;\r
- IMG_INT res;\r
-\r
-\r
- if (atomic_read(&psSysSpecData->sSGXClocksEnabled) != 0)\r
- {\r
- return PVRSRV_OK;\r
- }\r
-\r
- PVR_DPF((PVR_DBG_MESSAGE, "EnableSGXClocks: Enabling SGX Clocks"));\r
-\r
- res = clk_enable(psSysSpecData->psSGX_FCK);\r
- if (res < 0)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: Couldn't enable SGX functional clock (%d)", res));\r
- return PVRSRV_ERROR_GENERIC;\r
- }\r
-\r
-#if 0 \r
- lNewRate = clk_round_rate(psSysSpecData->psSGX_FCK, SYS_SGX_CLOCK_SPEED + ONE_MHZ);\r
- PVR_DPF((PVR_DBG_MESSAGE, "New SGXClocks: CPU Clock is %dMhz", HZ_TO_MHZ(lNewRate)));\r
- //PVR_DPF((PVR_DBG_WARNING, "EnableSGXClocks: New SGX Func Clk = (%d)", lNewRate));\r
- if (lNewRate <= 0)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: Couldn't round SGX functional clock rate"));\r
- return PVRSRV_ERROR_GENERIC;\r
- }\r
-\r
- res = clk_set_rate(psSysSpecData->psSGX_FCK, lNewRate);\r
- if (res < 0)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: Couldn't set SGX function clock rate (%d)", res));\r
- return PVRSRV_ERROR_GENERIC;\r
- }\r
-#endif\r
-#if defined(DEBUG)\r
- {\r
-\r
- IMG_UINT32 rate = clk_get_rate(psSysSpecData->psSGX_FCK);\r
- PVR_DPF((PVR_DBG_MESSAGE, "EnableSGXClocks: SGX Functional Clock is %dMhz", HZ_TO_MHZ(rate)));\r
- }\r
-#endif\r
-\r
- set_vdd2_constraint();\r
-\r
- lNewRate = clk_get_rate(psSysSpecData->psSGX_FCK);\r
- atomic_set(&psSysSpecData->sSGXClocksEnabled, 1);\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: Final SGX Func Clk = (%d)", lNewRate));\r
-#else\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
-#endif\r
- return PVRSRV_OK;\r
-}\r
-\r
-\r
-IMG_VOID DisableSGXClocks(SYS_DATA *psSysData)\r
-{\r
-#if !defined(NO_HARDWARE)\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
-\r
- if (atomic_read(&psSysSpecData->sSGXClocksEnabled) == 0)\r
- {\r
- return;\r
- }\r
-\r
- PVR_DPF((PVR_DBG_MESSAGE, "DisableSGXClocks: Disabling SGX Clocks"));\r
-\r
- if (psSysSpecData->psSGX_FCK)\r
- {\r
- clk_disable(psSysSpecData->psSGX_FCK);\r
- }\r
-\r
- remove_vdd2_constraint();\r
-\r
- atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);\r
-\r
-#else\r
- PVR_UNREFERENCED_PARAMETER(psSysData);\r
-#endif\r
-}\r
-\r
-PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)\r
-{\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
- struct clk *psCLK;\r
- IMG_INT res;\r
- PVRSRV_ERROR eError;\r
- IMG_BOOL bPowerLock;\r
-\r
-#if defined(DEBUG) || defined(TIMING)\r
- IMG_INT rate;\r
- struct clk *sys_ck;\r
- IMG_CPU_PHYADDR TimerRegPhysBase;\r
- IMG_HANDLE hTimerEnable;\r
- IMG_UINT32 *pui32TimerEnable;\r
-\r
-#endif\r
-\r
- PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));\r
-\r
- if (!psSysSpecData->bSysClocksOneTimeInit)\r
- {\r
- bPowerLock = IMG_FALSE;\r
-\r
- spin_lock_init(&psSysSpecData->sPowerLock);\r
- atomic_set(&psSysSpecData->sPowerLockCPU, -1);\r
- spin_lock_init(&psSysSpecData->sNotifyLock);\r
- atomic_set(&psSysSpecData->sNotifyLockCPU, -1);\r
-\r
- atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);\r
-\r
- psCLK = clk_get(NULL, "sgx_ck");\r
- if (IS_ERR(psCLK))\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSsystemClocks: Couldn't get SGX Functional Clock"));\r
- goto ExitError;\r
- }\r
- psSysSpecData->psSGX_FCK = psCLK;\r
-\r
- psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;\r
- }\r
- else\r
- {\r
-\r
- bPowerLock = PowerLockWrappedOnCPU(psSysSpecData);\r
- if (bPowerLock)\r
- {\r
- PowerLockUnwrap(psSysSpecData);\r
- }\r
- }\r
-\r
-#if defined(CONSTRAINT_NOTIFICATIONS)\r
-\r
- RegisterConstraintNotifications();\r
-#endif\r
-\r
-#if defined(DEBUG) || defined(TIMING)\r
-\r
- psCLK = clk_get(NULL, "gpt7_fck");\r
- if (IS_ERR(psCLK))\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get GPTIMER11 functional clock"));\r
- goto ExitUnRegisterConstraintNotifications;\r
- }\r
- psSysSpecData->psGPT11_FCK = psCLK;\r
-\r
- psCLK = clk_get(NULL, "gpt7_ick");\r
- if (IS_ERR(psCLK))\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get GPTIMER11 interface clock"));\r
- goto ExitUnRegisterConstraintNotifications;\r
- }\r
- psSysSpecData->psGPT11_ICK = psCLK;\r
-\r
- rate = clk_get_rate(psSysSpecData->psGPT11_FCK);\r
- PVR_TRACE(("GPTIMER11 clock is %dMHz", HZ_TO_MHZ(rate)));\r
-\r
- res = clk_enable(psSysSpecData->psGPT11_FCK);\r
- if (res < 0)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't enable GPTIMER11 functional clock (%d)", res));\r
- goto ExitUnRegisterConstraintNotifications;\r
- }\r
-\r
- res = clk_enable(psSysSpecData->psGPT11_ICK);\r
- if (res < 0)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't enable GPTIMER11 interface clock (%d)", res));\r
- goto ExitDisableGPT11FCK;\r
- }\r
-\r
-\r
- TimerRegPhysBase.uiAddr = SYS_OMAP3430_GP11TIMER_TSICR_SYS_PHYS_BASE;\r
- pui32TimerEnable = OSMapPhysToLin(TimerRegPhysBase,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- &hTimerEnable);\r
-\r
- if (pui32TimerEnable == IMG_NULL)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: OSMapPhysToLin failed"));\r
- goto ExitDisableGPT11ICK;\r
- }\r
-\r
- rate = *pui32TimerEnable;\r
- if(!(rate & 4))\r
- {\r
- PVR_TRACE(("Setting GPTIMER11 mode to posted (currently is non-posted)"));\r
-\r
-\r
- *pui32TimerEnable = rate | 4;\r
- }\r
-\r
- OSUnMapPhysToLin(pui32TimerEnable,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- hTimerEnable);\r
-\r
-\r
- TimerRegPhysBase.uiAddr = SYS_OMAP3430_GP11TIMER_ENABLE_SYS_PHYS_BASE;\r
- pui32TimerEnable = OSMapPhysToLin(TimerRegPhysBase,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- &hTimerEnable);\r
-\r
- if (pui32TimerEnable == IMG_NULL)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: OSMapPhysToLin failed"));\r
- goto ExitDisableGPT11ICK;\r
- }\r
-\r
-\r
- *pui32TimerEnable = 3;\r
-\r
- OSUnMapPhysToLin(pui32TimerEnable,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- hTimerEnable);\r
-\r
-#endif\r
-\r
- eError = PVRSRV_OK;\r
- goto Exit;\r
-\r
-#if defined(DEBUG) || defined(TIMING)\r
-ExitDisableGPT11ICK:\r
- clk_disable(psSysSpecData->psGPT11_ICK);\r
-ExitDisableGPT11FCK:\r
- clk_disable(psSysSpecData->psGPT11_FCK);\r
-ExitUnRegisterConstraintNotifications:\r
-#endif\r
-#if defined(CONSTRAINT_NOTIFICATIONS)\r
- UnRegisterConstraintNotifications();\r
-\r
-#endif\r
-ExitError:\r
- eError = PVRSRV_ERROR_GENERIC;\r
-Exit:\r
- if (bPowerLock)\r
- {\r
- PowerLockWrap(psSysSpecData);\r
- }\r
-\r
-#if !defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)\r
- if (eError == PVRSRV_OK)\r
- {\r
-\r
- eError = EnableSGXClocks(psSysData);\r
- }\r
-#endif\r
- return eError;\r
-}\r
-\r
-IMG_VOID DisableSystemClocks(SYS_DATA *psSysData)\r
-{\r
- SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;\r
- IMG_BOOL bPowerLock;\r
-#if defined(DEBUG) || defined(TIMING)\r
- IMG_CPU_PHYADDR TimerRegPhysBase;\r
- IMG_HANDLE hTimerDisable;\r
- IMG_UINT32 *pui32TimerDisable;\r
-#endif\r
-\r
- PVR_TRACE(("DisableSystemClocks: Disabling System Clocks"));\r
-\r
- DisableSGXClocks(psSysData);\r
-\r
- bPowerLock = PowerLockWrappedOnCPU(psSysSpecData);\r
- if (bPowerLock)\r
- {\r
-\r
- PowerLockUnwrap(psSysSpecData);\r
- }\r
-\r
-#if defined(CONSTRAINT_NOTIFICATIONS)\r
- UnRegisterConstraintNotifications();\r
-#endif\r
-\r
-#if defined(DEBUG) || defined(TIMING)\r
-\r
- TimerRegPhysBase.uiAddr = SYS_OMAP3430_GP11TIMER_ENABLE_SYS_PHYS_BASE;\r
- pui32TimerDisable = OSMapPhysToLin(TimerRegPhysBase,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- &hTimerDisable);\r
-\r
- if (pui32TimerDisable == IMG_NULL)\r
- {\r
- PVR_DPF((PVR_DBG_ERROR, "DisableSystemClocks: OSMapPhysToLin failed"));\r
- }\r
- else\r
- {\r
- *pui32TimerDisable = 0;\r
-\r
- OSUnMapPhysToLin(pui32TimerDisable,\r
- 4,\r
- PVRSRV_HAP_KERNEL_ONLY|PVRSRV_HAP_UNCACHED,\r
- hTimerDisable);\r
- }\r
-\r
- clk_disable(psSysSpecData->psGPT11_ICK);\r
-\r
- clk_disable(psSysSpecData->psGPT11_FCK);\r
-\r
-#endif\r
- if (bPowerLock)\r
- {\r
- PowerLockWrap(psSysSpecData);\r
- }\r
-}\r
{
#if !defined(NO_HARDWARE)
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
+/*
long lNewRate;
long lRate;
+*/
IMG_INT res;
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
struct clk *psCLK;
- IMG_INT res;
+// IMG_INT res;
IMG_BOOL bPowerLock;
PVRSRV_ERROR eError;
#if defined(DEBUG) || defined(TIMING)
+ IMG_INT res;
IMG_INT rate;
struct clk *sys_ck;
IMG_CPU_PHYADDR TimerRegPhysBase;
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <asm/page.h>
#include "hostfunc.h"
#include "dbgdriv.h"
-#if defined(DEBUG) && !defined(SUPPORT_DRI_DRM)
+#if defined(MODULE) && defined(DEBUG) && !defined(SUPPORT_DRI_DRM)
IMG_UINT32 gPVRDebugLevel = (DBGPRIV_FATAL | DBGPRIV_ERROR | DBGPRIV_WARNING);
#define PVR_STRING_TERMINATOR '\0'
#if defined(SUPPORT_DRI_DRM)
void dbgdrv_cleanup(void)
#else
-void cleanup_module(void)
+static void __exit dbgdrv_cleanup(void)
#endif
{
#if !defined(SUPPORT_DRI_DRM)
#if defined(SUPPORT_DRI_DRM)
IMG_INT dbgdrv_init(void)
#else
-int init_module(void)
+static int __init dbgdrv_init(void)
#endif
{
#if (defined(LDM_PLATFORM) || defined(LDM_PCI)) && !defined(SUPPORT_DRI_DRM)
}
EXPORT_SYMBOL(DBGDrvGetServiceTable);
+
+#if !defined(SUPPORT_DRI_DRM)
+subsys_initcall(dbgdrv_init);
+module_exit(dbgdrv_cleanup);
+#endif
git.openpandora.org / sgx.git / commitdiff