* 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32:
unicore32 framebuffer fix: get videomemory by __get_free_pages() and make it floatable
unicore32 core architecture: remove duplicated #include
unicore32 rtc driver fix: cleanup irq_set_freq and irq_set_state
unicore32 fix: remove arch-specific futex support
unicore32 ldscript fix: add cacheline parameter to PERCPU() macro
ASM_GENERIC_HEADERS += cputime.h current.h
ASM_GENERIC_HEADERS += device.h div64.h
ASM_GENERIC_HEADERS += emergency-restart.h errno.h
-ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h
+ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h futex.h
ASM_GENERIC_HEADERS += hardirq.h hw_irq.h
ASM_GENERIC_HEADERS += ioctl.h ioctls.h ipcbuf.h irq_regs.h
ASM_GENERIC_HEADERS += kdebug.h kmap_types.h
+++ /dev/null
-/*
- * linux/arch/unicore32/include/asm/futex.h
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Copyright (C) 2001-2010 GUAN Xue-tao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __UNICORE_FUTEX_H__
-#define __UNICORE_FUTEX_H__
-
-#ifdef __KERNEL__
-
-#include <linux/futex.h>
-#include <linux/preempt.h>
-#include <linux/uaccess.h>
-#include <linux/errno.h>
-
-#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
- __asm__ __volatile__( \
- "1: ldw.u %1, [%2]\n" \
- " " insn "\n" \
- "2: stw.u %0, [%2]\n" \
- " mov %0, #0\n" \
- "3:\n" \
- " .pushsection __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 4f, 2b, 4f\n" \
- " .popsection\n" \
- " .pushsection .fixup,\"ax\"\n" \
- "4: mov %0, %4\n" \
- " b 3b\n" \
- " .popsection" \
- : "=&r" (ret), "=&r" (oldval) \
- : "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
- : "cc", "memory")
-
-static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
-{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
- int oldval = 0, ret;
-
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- pagefault_disable(); /* implies preempt_disable() */
-
- switch (op) {
- case FUTEX_OP_SET:
- __futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_ADD:
- __futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_OR:
- __futex_atomic_op("or %0, %1, %3", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_ANDN:
- __futex_atomic_op("and %0, %1, %3",
- ret, oldval, uaddr, ~oparg);
- break;
- case FUTEX_OP_XOR:
- __futex_atomic_op("xor %0, %1, %3", ret, oldval, uaddr, oparg);
- break;
- default:
- ret = -ENOSYS;
- }
-
- pagefault_enable(); /* subsumes preempt_enable() */
-
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
- return ret;
-}
-
-static inline int
-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-{
- int val;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- pagefault_disable(); /* implies preempt_disable() */
-
- __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
- "1: ldw.u %0, [%3]\n"
- " cmpxor.a %0, %1\n"
- " bne 3f\n"
- "2: stw.u %2, [%3]\n"
- "3:\n"
- " .pushsection __ex_table,\"a\"\n"
- " .align 3\n"
- " .long 1b, 4f, 2b, 4f\n"
- " .popsection\n"
- " .pushsection .fixup,\"ax\"\n"
- "4: mov %0, %4\n"
- " b 3b\n"
- " .popsection"
- : "=&r" (val)
- : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
- : "cc", "memory");
-
- pagefault_enable(); /* subsumes preempt_enable() */
-
- return val;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __UNICORE_FUTEX_H__ */
#define PKUNITY_SDRAM_BASE 0x00000000 /* 0x00000000 - 0x7FFFFFFF 2GB */
#define PKUNITY_MMIO_BASE 0x80000000 /* 0x80000000 - 0xFFFFFFFF 2GB */
-/*
- * PKUNITY Memory Map Addresses: 0x0D000000 - 0x0EFFFFFF (32MB)
- * 0x0D000000 - 0x0DFFFFFF 16MB: for UVC
- * 0x0E000000 - 0x0EFFFFFF 16MB: for UNIGFX
- */
-#define PKUNITY_UVC_MMAP_BASE 0x0D000000
-#define PKUNITY_UVC_MMAP_SIZE 0x01000000 /* 16MB */
-#define PKUNITY_UNIGFX_MMAP_BASE 0x0E000000
-#define PKUNITY_UNIGFX_MMAP_SIZE 0x01000000 /* 16MB */
-
/*
* PKUNITY System Bus Addresses (PCI): 0x80000000 - 0xBFFFFFFF (1GB)
* 0x80000000 - 0x8000000B 12B PCI Configuration regs
/* kuser area */
#define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000))
-#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE)
/* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */
#define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \
+ (VECTORS_BASE))
.end = io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff,
.flags = IORESOURCE_MEM,
},
- [1] = {
- .start = PKUNITY_UNIGFX_MMAP_BASE,
- .end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE,
- .flags = IORESOURCE_MEM,
- },
};
static struct resource puv3_rtc_resources[] = {
return 0;
}
-static int puv3_rtc_setfreq(struct device *dev, int freq)
-{
- return 0;
-}
-
/* Time read/write */
static int puv3_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
.set_time = puv3_rtc_settime,
.read_alarm = puv3_rtc_getalarm,
.set_alarm = puv3_rtc_setalarm,
- .irq_set_freq = puv3_rtc_setfreq,
- .irq_set_state = puv3_rtc_setpie,
.proc = puv3_rtc_proc,
};
puv3_rtc_enable(pdev, 1);
- puv3_rtc_setfreq(&pdev->dev, 1);
-
/* register RTC and exit */
rtc = rtc_device_register("pkunity", &pdev->dev, &puv3_rtcops,
* Standard memory resources
*/
static struct resource mem_res[] = {
- {
- .name = "Video RAM",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_MEM
- },
{
.name = "Kernel text",
.start = 0,
}
};
-#define video_ram mem_res[0]
-#define kernel_code mem_res[1]
-#define kernel_data mem_res[2]
+#define kernel_code mem_res[0]
+#define kernel_data mem_res[1]
/*
* These functions re-use the assembly code in head.S, which
kernel_data.end <= res->end)
request_resource(res, &kernel_data);
}
-
- video_ram.start = PKUNITY_UNIGFX_MMAP_BASE;
- video_ram.end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE;
- request_resource(&iomem_resource, &video_ram);
}
static void (*init_machine)(void) __initdata;
#include <linux/delay.h>
#include <linux/hardirq.h>
#include <linux/init.h>
-#include <linux/uaccess.h>
#include <linux/atomic.h>
#include <linux/unistd.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
#include <asm/page.h>
+#include <asm/cache.h>
OUTPUT_ARCH(unicore32)
ENTRY(stext)
HEAD_TEXT_SECTION
INIT_TEXT_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
- PERCPU(PAGE_SIZE)
+ PERCPU(L1_CACHE_BYTES, PAGE_SIZE)
__init_end = .;
_stext = .;
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
- RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
+ RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
- EXCEPTION_TABLE(32)
+ EXCEPTION_TABLE(L1_CACHE_BYTES)
NOTES
BSS_SECTION(0, 0, 0)
* and can only be in node 0.
*/
memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t));
-
-#ifdef CONFIG_PUV3_UNIGFX
- /*
- * These should likewise go elsewhere. They pre-reserve the
- * screen/video memory region at the 48M~64M of main system memory.
- */
- memblock_reserve(PKUNITY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE);
- memblock_reserve(PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE);
-#endif
}
/*
for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
pmd_clear(pmd_off_k(addr));
- /*
- * Create a mapping for UniGFX VRAM
- */
-#ifdef CONFIG_PUV3_UNIGFX
- map.pfn = __phys_to_pfn(PKUNITY_UNIGFX_MMAP_BASE);
- map.virtual = KUSER_UNIGFX_BASE;
- map.length = PKUNITY_UNIGFX_MMAP_SIZE;
- map.type = MT_KUSER;
- create_mapping(&map);
-#endif
-
/*
* Create a mapping for the machine vectors at the high-vectors
* location (0xffff0000). If we aren't using high-vectors, also
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/vmalloc.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/fb.h>
return -EINVAL;
}
- writel(PKUNITY_UNIGFX_MMAP_BASE, UDE_FSA);
+ writel(info->fix.smem_start, UDE_FSA);
writel(info->var.yres, UDE_LS);
writel(get_line_length(info->var.xres,
info->var.bits_per_pixel) >> 3, UDE_PS);
struct fb_info *info;
u32 unifb_regs[UNIFB_REGS_NUM];
int retval = -ENOMEM;
- struct resource *iomem, *mapmem;
+ struct resource *iomem;
+ void *videomemory;
+
+ videomemory = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP,
+ get_order(UNIFB_MEMSIZE));
+ if (!videomemory)
+ goto err;
+
+ memset(videomemory, 0, UNIFB_MEMSIZE);
+
+ unifb_fix.smem_start = virt_to_phys(videomemory);
+ unifb_fix.smem_len = UNIFB_MEMSIZE;
+
+ iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ unifb_fix.mmio_start = iomem->start;
info = framebuffer_alloc(sizeof(u32)*256, &dev->dev);
if (!info)
goto err;
- info->screen_base = (char __iomem *)KUSER_UNIGFX_BASE;
+ info->screen_base = (char __iomem *)videomemory;
info->fbops = &unifb_ops;
retval = fb_find_mode(&info->var, info, NULL,
if (!retval || (retval == 4))
info->var = unifb_default;
- iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
- unifb_fix.mmio_start = iomem->start;
-
- mapmem = platform_get_resource(dev, IORESOURCE_MEM, 1);
- unifb_fix.smem_start = mapmem->start;
- unifb_fix.smem_len = UNIFB_MEMSIZE;
-
info->fix = unifb_fix;
info->pseudo_palette = info->par;
info->par = NULL;
git.openpandora.org / pandora-kernel.git / commitdiff