[Intel-gfx] [PATCH] drm/i915: Make sample_c messages go faster on Haswell.

[Matt Turner]

On Wed, Oct 29, 2014 at 2:12 PM, Kenneth Graunke <kenneth at whitecape.org> wrote:
> Haswell significantly improved the performance of sampler_c messages,
> but the optimization appears to be off by default.  Later platforms
> remove this bit, and apparently always enable the optimization.
>
> Improves performance in "Counter Strike: Global Offensive" by 18%
> at default settings on Iris Pro.  No Piglit regressions.

Discussion seems to have ended, but Mesa really needs this.

So, Kernel Team, how are we going to make sure Mesa gets this 18%
performance improvement?