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drm/i915, agp/intel: Fix stolen memory size on Sandybridge

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New memory control config reg at 0x50 should be used for stolen
memory size detection on Sandybridge.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhenyu Wang
2009-11-11 01:25:25 +08:00
committed by Eric Anholt
parent 21099537db
commit 14bc490bbd
3 changed files with 201 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/i915_dma.c
+108 -50
View File
@@ -1099,60 +1099,118 @@ static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
else
overhead = (*aperture_size / 1024) + 4096;
switch (tmp & INTEL_GMCH_GMS_MASK) {
case INTEL_855_GMCH_GMS_DISABLED:
/* XXX: This is what my A1 silicon has. */
if (IS_GEN6(dev)) {
stolen = 64 * 1024 * 1024;
} else {
if (IS_GEN6(dev)) {
/* SNB has memory control reg at 0x50.w */
pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &tmp);
switch (tmp & SNB_GMCH_GMS_STOLEN_MASK) {
case INTEL_855_GMCH_GMS_DISABLED:
DRM_ERROR("video memory is disabled\n");
return -1;
case SNB_GMCH_GMS_STOLEN_32M:
stolen = 32 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_64M:
stolen = 64 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_96M:
stolen = 96 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_128M:
stolen = 128 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_160M:
stolen = 160 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_192M:
stolen = 192 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_224M:
stolen = 224 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_256M:
stolen = 256 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_288M:
stolen = 288 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_320M:
stolen = 320 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_352M:
stolen = 352 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_384M:
stolen = 384 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_416M:
stolen = 416 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_448M:
stolen = 448 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_480M:
stolen = 480 * 1024 * 1024;
break;
case SNB_GMCH_GMS_STOLEN_512M:
stolen = 512 * 1024 * 1024;
break;
default:
DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
tmp & SNB_GMCH_GMS_STOLEN_MASK);
return -1;
}
} else {
switch (tmp & INTEL_GMCH_GMS_MASK) {
case INTEL_855_GMCH_GMS_DISABLED:
DRM_ERROR("video memory is disabled\n");
return -1;
case INTEL_855_GMCH_GMS_STOLEN_1M:
stolen = 1 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_4M:
stolen = 4 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_8M:
stolen = 8 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_16M:
stolen = 16 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_32M:
stolen = 32 * 1024 * 1024;
break;
case INTEL_915G_GMCH_GMS_STOLEN_48M:
stolen = 48 * 1024 * 1024;
break;
case INTEL_915G_GMCH_GMS_STOLEN_64M:
stolen = 64 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_128M:
stolen = 128 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_256M:
stolen = 256 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_96M:
stolen = 96 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_160M:
stolen = 160 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_224M:
stolen = 224 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_352M:
stolen = 352 * 1024 * 1024;
break;
default:
DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
tmp & INTEL_GMCH_GMS_MASK);
return -1;
}
break;
case INTEL_855_GMCH_GMS_STOLEN_1M:
stolen = 1 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_4M:
stolen = 4 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_8M:
stolen = 8 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_16M:
stolen = 16 * 1024 * 1024;
break;
case INTEL_855_GMCH_GMS_STOLEN_32M:
stolen = 32 * 1024 * 1024;
break;
case INTEL_915G_GMCH_GMS_STOLEN_48M:
stolen = 48 * 1024 * 1024;
break;
case INTEL_915G_GMCH_GMS_STOLEN_64M:
stolen = 64 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_128M:
stolen = 128 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_256M:
stolen = 256 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_96M:
stolen = 96 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_160M:
stolen = 160 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_224M:
stolen = 224 * 1024 * 1024;
break;
case INTEL_GMCH_GMS_STOLEN_352M:
stolen = 352 * 1024 * 1024;
break;
default:
DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
tmp & INTEL_GMCH_GMS_MASK);
return -1;
}
*preallocated_size = stolen - overhead;
*start = overhead;
drivers/gpu/drm/i915/i915_reg.h
+19
View File
@@ -53,6 +53,25 @@
#define INTEL_GMCH_GMS_STOLEN_224M (0xc << 4)
#define INTEL_GMCH_GMS_STOLEN_352M (0xd << 4)
#define SNB_GMCH_CTRL 0x50
#define SNB_GMCH_GMS_STOLEN_MASK 0xF8
#define SNB_GMCH_GMS_STOLEN_32M (1 << 3)
#define SNB_GMCH_GMS_STOLEN_64M (2 << 3)
#define SNB_GMCH_GMS_STOLEN_96M (3 << 3)
#define SNB_GMCH_GMS_STOLEN_128M (4 << 3)
#define SNB_GMCH_GMS_STOLEN_160M (5 << 3)
#define SNB_GMCH_GMS_STOLEN_192M (6 << 3)
#define SNB_GMCH_GMS_STOLEN_224M (7 << 3)
#define SNB_GMCH_GMS_STOLEN_256M (8 << 3)
#define SNB_GMCH_GMS_STOLEN_288M (9 << 3)
#define SNB_GMCH_GMS_STOLEN_320M (0xa << 3)
#define SNB_GMCH_GMS_STOLEN_352M (0xb << 3)
#define SNB_GMCH_GMS_STOLEN_384M (0xc << 3)
#define SNB_GMCH_GMS_STOLEN_416M (0xd << 3)
#define SNB_GMCH_GMS_STOLEN_448M (0xe << 3)
#define SNB_GMCH_GMS_STOLEN_480M (0xf << 3)
#define SNB_GMCH_GMS_STOLEN_512M (0x10 << 3)
/* PCI config space */
#define HPLLCC 0xc0 /* 855 only */