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authorChris Wilson <chris@chris-wilson.co.uk>2012-05-24 20:48:12 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-25 10:07:06 +0200
commitbed1ea95a38bf7a54fd3229edcd3871a18ca98c0 (patch)
tree353d8a2bb972bf643a93d192e0d588e7d73ada10 /drivers/gpu
parent89ba829e38bd500f438bc08af4229204c8ed7f35 (diff)
drm/i915: Limit page allocations to lowmem (dma32) for i965
Broadwater and Crestline share a limitation that prevent it from relocating general surface state above 4GiB. The only recourse we have since any buffer object may be used as a relocation target is then to limit all object allocations on 965g[m] to DMA32. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6d2180cf3da5..1d4b51c53874 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3263,6 +3263,7 @@ struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
struct address_space *mapping;
+ u32 mask;
obj = kzalloc(sizeof(*obj), GFP_KERNEL);
if (obj == NULL)
@@ -3273,8 +3274,15 @@ struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
return NULL;
}
+ mask = GFP_HIGHUSER | __GFP_RECLAIMABLE;
+ if (IS_CRESTLINE(dev) || IS_BROADWATER(dev)) {
+ /* 965gm cannot relocate objects above 4GiB. */
+ mask &= ~__GFP_HIGHMEM;
+ mask |= __GFP_DMA32;
+ }
+
mapping = obj->base.filp->f_path.dentry->d_inode->i_mapping;
- mapping_set_gfp_mask(mapping, GFP_HIGHUSER | __GFP_RECLAIMABLE);
+ mapping_set_gfp_mask(mapping, mask);
i915_gem_info_add_obj(dev_priv, size);