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authorDaniel Vetter <daniel.vetter@ffwll.ch>2010-08-24 22:18:41 +0200
committerChris Wilson <chris@chris-wilson.co.uk>2010-09-08 21:20:07 +0100
commit0ade638655f0ef4d807295c14a4c97544bd6b9ca (patch)
tree23ddab04b976c4133e1528d3be2aaa53d9e195d7
parente2404e7c3fe6f46e161edf085c6d9bea06ebe488 (diff)
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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>
-rw-r--r--drivers/char/agp/intel-gtt.c42
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c2
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h1
-rw-r--r--include/drm/intel-gtt.h18
4 files changed, 38 insertions, 25 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 72f93761505..0a3e91ba0f2 100644
--- 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 8d52f01a6d9..47228cb1690 100644
--- 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 cfc8bfd0fd7..d825ef207b2 100644
--- 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
index 00000000000..6769cb704e9
--- /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
+