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| author | Chris Wilson | 2013-08-08 15:41:06 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2013-08-10 11:24:18 +0200 |
| commit | d46f1c3f1372e3a72fab97c60480aa4a1084387f (patch) | |
| tree | 108839c739064c74491f993148a9049b59309676 /drivers/gpu/drm/i915/i915_gem_stolen.c | |
| parent | drm/i915: Update rules for writing through the LLC with the cpu (diff) | |
| download | kernel-qcow2-linux-d46f1c3f1372e3a72fab97c60480aa4a1084387f.tar.gz kernel-qcow2-linux-d46f1c3f1372e3a72fab97c60480aa4a1084387f.tar.xz kernel-qcow2-linux-d46f1c3f1372e3a72fab97c60480aa4a1084387f.zip | |
drm/i915: Allow the GPU to cache stolen memory
As a corollary to reviewing the interaction between LLC and our cache
domains, the GPU PTE bits are independent of the CPU PAT bits. As such
we can set the cache level on stolen memory based on how we wish the GPU
to cache accesses to it. So we are free to set the same default cache
levels as for normal bo, i.e. enable LLC cacheing by default where
appropriate.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_stolen.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_stolen.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index e68c4b5da46d..e20d64966c72 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -287,9 +287,8 @@ _i915_gem_object_create_stolen(struct drm_device *dev, i915_gem_object_pin_pages(obj); obj->stolen = stolen; - obj->base.write_domain = I915_GEM_DOMAIN_GTT; - obj->base.read_domains = I915_GEM_DOMAIN_GTT; - obj->cache_level = I915_CACHE_NONE; + obj->base.read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT; + obj->cache_level = HAS_LLC(dev) ? I915_CACHE_LLC : I915_CACHE_NONE; return obj; |