intel-gtt: introduce drm/intel-gtt.h

Add a few definitions to it that are already shared and that will
be shared in the future (like the number of stolen entries).
No functional changes in here.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 72f9376..0a3e91b 100644 (file)
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -25,6 +25,7 @@
 #include "agp.h"
 #include "intel-agp.h"
 #include <linux/intel-gtt.h>
+#include <drm/intel-gtt.h>
 
 /*
  * If we have Intel graphics, we're not going to have anything other than
@@ -81,17 +82,11 @@ static struct gatt_mask intel_gen6_masks[] =
 };
 
 static struct _intel_private {
+       struct intel_gtt base;
        struct pci_dev *pcidev; /* device one */
        u8 __iomem *registers;
        u32 __iomem *gtt;               /* I915G */
        int num_dcache_entries;
-       /* gtt_entries is the number of gtt entries that are already mapped
-        * to stolen memory.  Stolen memory is larger than the memory mapped
-        * through gtt_entries, as it includes some reserved space for the BIOS
-        * popup and for the GTT.
-        */
-       int gtt_entries;                        /* i830+ */
-       int gtt_total_size;
        union {
                void __iomem *i9xx_flush_page;
                void *i8xx_flush_page;
@@ -772,7 +767,7 @@ static void intel_i830_init_gtt_entries(void)
                gtt_entries = 0;
        }
 
-       intel_private.gtt_entries = gtt_entries;
+       intel_private.base.gtt_stolen_entries = gtt_entries;
 }
 
 static void intel_i830_fini_flush(void)
@@ -849,7 +844,7 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
 
        /* we have to call this as early as possible after the MMIO base address is known */
        intel_i830_init_gtt_entries();
-       if (intel_private.gtt_entries == 0) {
+       if (intel_private.base.gtt_stolen_entries == 0) {
                iounmap(intel_private.registers);
                return -ENOMEM;
        }
@@ -919,7 +914,7 @@ static int intel_i830_configure(void)
        readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
 
        if (agp_bridge->driver->needs_scratch_page) {
-               for (i = intel_private.gtt_entries; i < current_size->num_entries; i++) {
+               for (i = intel_private.base.gtt_stolen_entries; i < current_size->num_entries; i++) {
                        writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
                }
                readl(intel_private.registers+I810_PTE_BASE+((i-1)*4)); /* PCI Posting. */
@@ -950,10 +945,10 @@ static int intel_i830_insert_entries(struct agp_memory *mem, off_t pg_start,
        temp = agp_bridge->current_size;
        num_entries = A_SIZE_FIX(temp)->num_entries;
 
-       if (pg_start < intel_private.gtt_entries) {
+       if (pg_start < intel_private.base.gtt_stolen_entries) {
                dev_printk(KERN_DEBUG, &intel_private.pcidev->dev,
-                          "pg_start == 0x%.8lx, intel_private.gtt_entries == 0x%.8x\n",
-                          pg_start, intel_private.gtt_entries);
+                          "pg_start == 0x%.8lx, gtt_stolen_entries == 0x%.8x\n",
+                          pg_start, intel_private.base.gtt_stolen_entries);
 
                dev_info(&intel_private.pcidev->dev,
                         "trying to insert into local/stolen memory\n");
@@ -1001,7 +996,7 @@ static int intel_i830_remove_entries(struct agp_memory *mem, off_t pg_start,
        if (mem->page_count == 0)
                return 0;
 
-       if (pg_start < intel_private.gtt_entries) {
+       if (pg_start < intel_private.base.gtt_stolen_entries) {
                dev_info(&intel_private.pcidev->dev,
                         "trying to disable local/stolen memory\n");
                return -EINVAL;
@@ -1136,7 +1131,8 @@ static int intel_i9xx_configure(void)
        readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
 
        if (agp_bridge->driver->needs_scratch_page) {
-               for (i = intel_private.gtt_entries; i < intel_private.gtt_total_size; i++) {
+               for (i = intel_private.base.gtt_stolen_entries; i <
+                               intel_private.base.gtt_total_entries; i++) {
                        writel(agp_bridge->scratch_page, intel_private.gtt+i);
                }
                readl(intel_private.gtt+i-1);   /* PCI Posting. */
@@ -1181,10 +1177,10 @@ static int intel_i915_insert_entries(struct agp_memory *mem, off_t pg_start,
        temp = agp_bridge->current_size;
        num_entries = A_SIZE_FIX(temp)->num_entries;
 
-       if (pg_start < intel_private.gtt_entries) {
+       if (pg_start < intel_private.base.gtt_stolen_entries) {
                dev_printk(KERN_DEBUG, &intel_private.pcidev->dev,
-                          "pg_start == 0x%.8lx, intel_private.gtt_entries == 0x%.8x\n",
-                          pg_start, intel_private.gtt_entries);
+                          "pg_start == 0x%.8lx, gtt_stolen_entries == 0x%.8x\n",
+                          pg_start, intel_private.base.gtt_stolen_entries);
 
                dev_info(&intel_private.pcidev->dev,
                         "trying to insert into local/stolen memory\n");
@@ -1227,7 +1223,7 @@ static int intel_i915_remove_entries(struct agp_memory *mem, off_t pg_start,
        if (mem->page_count == 0)
                return 0;
 
-       if (pg_start < intel_private.gtt_entries) {
+       if (pg_start < intel_private.base.gtt_stolen_entries) {
                dev_info(&intel_private.pcidev->dev,
                         "trying to disable local/stolen memory\n");
                return -EINVAL;
@@ -1323,7 +1319,7 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
        if (!intel_private.gtt)
                return -ENOMEM;
 
-       intel_private.gtt_total_size = gtt_map_size / 4;
+       intel_private.base.gtt_total_entries = gtt_map_size / 4;
 
        temp &= 0xfff80000;
 
@@ -1338,7 +1334,7 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
 
        /* we have to call this as early as possible after the MMIO base address is known */
        intel_i830_init_gtt_entries();
-       if (intel_private.gtt_entries == 0) {
+       if (intel_private.base.gtt_stolen_entries == 0) {
                iounmap(intel_private.gtt);
                iounmap(intel_private.registers);
                return -ENOMEM;
@@ -1449,7 +1445,7 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
        if (!intel_private.gtt)
                return -ENOMEM;
 
-       intel_private.gtt_total_size = gtt_size / 4;
+       intel_private.base.gtt_total_entries = gtt_size / 4;
 
        intel_private.registers = ioremap(temp, 128 * 4096);
        if (!intel_private.registers) {
@@ -1462,7 +1458,7 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
 
        /* we have to call this as early as possible after the MMIO base address is known */
        intel_i830_init_gtt_entries();
-       if (intel_private.gtt_entries == 0) {
+       if (intel_private.base.gtt_stolen_entries == 0) {
                iounmap(intel_private.gtt);
                iounmap(intel_private.registers);
                return -ENOMEM;

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 8d52f01..47228cb 100644 (file)
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -42,8 +42,6 @@
 #include <linux/slab.h>
 #include <acpi/video.h>
 
-extern int intel_max_stolen; /* from AGP driver */
-
 /**
  * Sets up the hardware status page for devices that need a physical address
  * in the register.

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cfc8bfd..d825ef2 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -34,6 +34,7 @@
 #include "intel_bios.h"
 #include "intel_ringbuffer.h"
 #include <linux/io-mapping.h>
+#include <drm/intel-gtt.h>
 
 /* General customization:
  */

diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
new file mode 100644 (file)
index 0000000..6769cb7
--- /dev/null
+++ b/include/drm/intel-gtt.h
@@ -0,0 +1,18 @@
+/* Common header for intel-gtt.ko and i915.ko */
+
+#ifndef _DRM_INTEL_GTT_H
+#define        _DRM_INTEL_GTT_H
+extern int intel_max_stolen; /* from AGP driver */
+
+struct intel_gtt {
+       /* Number of stolen gtt entries at the beginning. */
+       unsigned int gtt_stolen_entries;
+       /* Total number of gtt entries. */
+       unsigned int gtt_total_entries;
+       /* Part of the gtt that is mappable by the cpu, for those chips where
+        * this is not the full gtt. */
+       unsigned int gtt_mappable_entries;
+};
+
+#endif
+