diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 156 |
1 files changed, 107 insertions, 49 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 281faca3e37..3e658d6a6b7 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -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)) { + 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; - } else { + 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; |