[Intel-gfx] [PATCH] drm/i915: Update rules for writing through the LLC with the cpu

As mentioned in the previous commit, reads and writes from both the CPU and GPU go through the LLC. This gives us coherency between the CPU and GPU irrespective of the attribute settings either device sets. We can use to avoid having to clflush even uncached memory. Except for the scanout. The

Re: [Intel-gfx] [PATCH] drm/i915: Update rules for writing through the LLC with the cpu

On Fri, Aug 09, 2013 at 12:26:45PM +0100, Chris Wilson wrote: As mentioned in the previous commit, reads and writes from both the CPU and GPU go through the LLC. This gives us coherency between the CPU and GPU irrespective of the attribute settings either device sets. We can use to avoid