From 14bc490bbdf1b194ad1f5f3d2a0a27edfdf78986 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Wed, 11 Nov 2009 01:25:25 +0800 Subject: [PATCH] drm/i915, agp/intel: Fix stolen memory size on Sandybridge New memory control config reg at 0x50 should be used for stolen memory size detection on Sandybridge. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/char/agp/intel-agp.c | 78 +++++++++++++++- drivers/gpu/drm/i915/i915_dma.c | 156 ++++++++++++++++++++++---------- drivers/gpu/drm/i915/i915_reg.h | 19 ++++ 3 files changed, 200 insertions(+), 53 deletions(-) diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index c3c870bf5678..9a551bc34c39 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -150,6 +150,25 @@ extern int agp_memory_reserved; #define INTEL_I7505_AGPCTRL 0x70 #define INTEL_I7505_MCHCFG 0x50 +#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) + static const struct aper_size_info_fixed intel_i810_sizes[] = { {64, 16384, 4}, @@ -621,7 +640,7 @@ static struct aper_size_info_fixed intel_i830_sizes[] = static void intel_i830_init_gtt_entries(void) { u16 gmch_ctrl; - int gtt_entries; + int gtt_entries = 0; u8 rdct; int local = 0; static const int ddt[4] = { 0, 16, 32, 64 }; @@ -715,10 +734,61 @@ static void intel_i830_init_gtt_entries(void) } } else if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB) { - /* XXX: This is what my A1 silicon has. What's the right - * answer? + /* + * SandyBridge has new memory control reg at 0x50.w */ - gtt_entries = MB(64) - KB(size); + u16 snb_gmch_ctl; + pci_read_config_word(intel_private.pcidev, SNB_GMCH_CTRL, &snb_gmch_ctl); + switch (snb_gmch_ctl & SNB_GMCH_GMS_STOLEN_MASK) { + case SNB_GMCH_GMS_STOLEN_32M: + gtt_entries = MB(32) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_64M: + gtt_entries = MB(64) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_96M: + gtt_entries = MB(96) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_128M: + gtt_entries = MB(128) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_160M: + gtt_entries = MB(160) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_192M: + gtt_entries = MB(192) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_224M: + gtt_entries = MB(224) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_256M: + gtt_entries = MB(256) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_288M: + gtt_entries = MB(288) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_320M: + gtt_entries = MB(320) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_352M: + gtt_entries = MB(352) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_384M: + gtt_entries = MB(384) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_416M: + gtt_entries = MB(416) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_448M: + gtt_entries = MB(448) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_480M: + gtt_entries = MB(480) - KB(size); + break; + case SNB_GMCH_GMS_STOLEN_512M: + gtt_entries = MB(512) - KB(size); + break; + } } else { switch (gmch_ctrl & I855_GMCH_GMS_MASK) { case I855_GMCH_GMS_STOLEN_1M: diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 281faca3e37c..3e658d6a6b7d 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; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 2a312b674a72..3d59862c7ccd 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -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 */ -- 2.30.2