drm/i915: Rename I915_CACHE_MLC_LLC to L3_LLC for Ivybridge
MLC_LLC was never validated for Sandybridge and was superseded by a new
level of cacheing for the GPU in Ivybridge. Update our names to be
consistent with usage, and in the process stop setting the unwanted bit
on Sandybridge.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: s/BUG/WARN_ON(1) bikeshed.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index da1827a..290c12d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -449,8 +449,11 @@
enum i915_cache_level {
I915_CACHE_NONE = 0,
- I915_CACHE_LLC,
- I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
+ I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
+ I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
+ caches, eg sampler/render caches, and the
+ large Last-Level-Cache. LLC is coherent with
+ the CPU, but L3 is only visible to the GPU. */
};
typedef uint32_t gen6_gtt_pte_t;