[Intel-gfx] [PATCH 17/30] drm/i915: Do not clflush snooped objects

Daniel Vetter daniel at ffwll.ch
Wed Apr 13 22:47:31 CEST 2011


On Wed, Apr 13, 2011 at 06:34:57PM +0100, Chris Wilson wrote:
> I changed the comment to:
> 
> /* If the GPU is snooping the contents of the CPU cache,
>  * we do not need to manually clear the CPU cache lines.  Instead,
>  * the caches are only snooped when the render cache is
>  * flushed/invalidated.  As we always have to emit invalidations
>  * and flushes when moving into and out of the RENDER domain, correct
>  * snooping behaviour occurs naturally as the result of our domain
>  * tracking.
>  */
Perfect!
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48



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