[Mesa-dev] [PATCH] i965/gen8+: Skip depth stalls on state change

[Chris Wilson]

On Wed, Aug 26, 2015 at 10:52:58AM -0700, Ben Widawsky wrote:
> Docs suggest this is no longer required starting with Gen8.
> 
> Perf (no regressions in n=20)
> OglMultithread       0.67%
> OglTerrainPanInst    0.12%
> trex                 0.45%
> warsow               0.64%
> 
> I have a couple of spurious failures in piglit on BSW, and SKL. I have no
> evidence that they are related to this patch.
> 
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

I could not find any contra-indications that would suggest the workaround
needed to be preserved for bdw+.

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre