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path: root/drivers/gpu/drm/i915/i915_gem_gtt.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9fd25a435536..60815b861ec2 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -72,7 +72,7 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev)
72 /* ppgtt PDEs reside in the global gtt pagetable, which has 512*1024 72 /* ppgtt PDEs reside in the global gtt pagetable, which has 512*1024
73 * entries. For aliasing ppgtt support we just steal them at the end for 73 * entries. For aliasing ppgtt support we just steal them at the end for
74 * now. */ 74 * now. */
75 first_pd_entry_in_global_pt = 512*1024 - I915_PPGTT_PD_ENTRIES; 75 first_pd_entry_in_global_pt = dev_priv->mm.gtt->gtt_total_entries - I915_PPGTT_PD_ENTRIES;
76 76
77 ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL); 77 ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
78 if (!ppgtt) 78 if (!ppgtt)
@@ -261,7 +261,10 @@ void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
261 pte_flags |= GEN6_PTE_CACHE_LLC; 261 pte_flags |= GEN6_PTE_CACHE_LLC;
262 break; 262 break;
263 case I915_CACHE_NONE: 263 case I915_CACHE_NONE:
264 pte_flags |= GEN6_PTE_UNCACHED; 264 if (IS_HASWELL(dev))
265 pte_flags |= HSW_PTE_UNCACHED;
266 else
267 pte_flags |= GEN6_PTE_UNCACHED;
265 break; 268 break;
266 default: 269 default:
267 BUG(); 270 BUG();
@@ -361,7 +364,8 @@ int i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj)
361 struct drm_device *dev = obj->base.dev; 364 struct drm_device *dev = obj->base.dev;
362 struct drm_i915_private *dev_priv = dev->dev_private; 365 struct drm_i915_private *dev_priv = dev->dev_private;
363 366
364 if (dev_priv->mm.gtt->needs_dmar) 367 /* don't map imported dma buf objects */
368 if (dev_priv->mm.gtt->needs_dmar && !obj->sg_table)
365 return intel_gtt_map_memory(obj->pages, 369 return intel_gtt_map_memory(obj->pages,
366 obj->base.size >> PAGE_SHIFT, 370 obj->base.size >> PAGE_SHIFT,
367 &obj->sg_list, 371 &obj->sg_list,