diff options
| author | Ben Widawsky <benjamin.widawsky@intel.com> | 2013-11-03 16:53:55 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-08 18:09:39 +0100 |
| commit | 9459d252378aea80d28dc12bfec9a0d31b2a61bf (patch) | |
| tree | af6ebccd4074194aa16d836bd2508591dac57851 /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | 4e0bbc316ef2a7d804cef3e0247fd782382f5bd4 (diff) | |
drm/i915/bdw: support GMS and GGMS changes
All the BARs have the ability to grow.
v2: Pulled out the simulator workaround to a separate patch.
Rebased.
v3: Rebase onto latest vlv patches from Jesse.
v4: Rebased on top of the early stolen quirk patch from Jesse.
v5: Use the new macro names.
s/INTEL_BDW_PCI_IDS_D/INTEL_BDW_D_IDS
s/INTEL_BDW_PCI_IDS_M/INTEL_BDW_M_IDS
It's Jesse's fault for not following the convention I originally set.
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 7d5a51fea1b..074aec11fc9 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -869,6 +869,15 @@ static inline unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) return snb_gmch_ctl << 20; } +static inline unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl) +{ + bdw_gmch_ctl >>= BDW_GMCH_GGMS_SHIFT; + bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK; + if (bdw_gmch_ctl) + bdw_gmch_ctl = 1 << bdw_gmch_ctl; + return bdw_gmch_ctl << 20; +} + static inline size_t gen6_get_stolen_size(u16 snb_gmch_ctl) { snb_gmch_ctl >>= SNB_GMCH_GMS_SHIFT; @@ -876,6 +885,13 @@ static inline size_t gen6_get_stolen_size(u16 snb_gmch_ctl) return snb_gmch_ctl << 25; /* 32 MB units */ } +static inline size_t gen8_get_stolen_size(u16 bdw_gmch_ctl) +{ + bdw_gmch_ctl >>= BDW_GMCH_GMS_SHIFT; + bdw_gmch_ctl &= BDW_GMCH_GMS_MASK; + return bdw_gmch_ctl << 25; /* 32 MB units */ +} + static int gen6_gmch_probe(struct drm_device *dev, size_t *gtt_total, size_t *stolen, @@ -903,10 +919,16 @@ static int gen6_gmch_probe(struct drm_device *dev, if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(40))) pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(40)); pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); - gtt_size = gen6_get_total_gtt_size(snb_gmch_ctl); - *stolen = gen6_get_stolen_size(snb_gmch_ctl); - *gtt_total = (gtt_size / sizeof(gen6_gtt_pte_t)) << PAGE_SHIFT; + if (IS_GEN8(dev)) { + gtt_size = gen8_get_total_gtt_size(snb_gmch_ctl); + *gtt_total = (gtt_size / 8) << PAGE_SHIFT; + *stolen = gen8_get_stolen_size(snb_gmch_ctl); + } else { + gtt_size = gen6_get_total_gtt_size(snb_gmch_ctl); + *gtt_total = (gtt_size / sizeof(gen6_gtt_pte_t)) << PAGE_SHIFT; + *stolen = gen6_get_stolen_size(snb_gmch_ctl); + } /* For Modern GENs the PTEs and register space are split in the BAR */ gtt_bus_addr = pci_resource_start(dev->pdev, 0) + @@ -916,6 +938,7 @@ static int gen6_gmch_probe(struct drm_device *dev, if (!dev_priv->gtt.gsm) { DRM_ERROR("Failed to map the gtt page table\n"); return -ENOMEM; + } ret = setup_scratch_page(dev); |