[Mesa-stable] nominate 55a97db5234 for 17.3

[Juan A. Suarez Romero]

On Mon, 2018-03-05 at 19:03 -0800, Kenneth Graunke wrote:
> Hi Emil,
> 
> Can you please cherry-pick this commit to 17.3?  It fixes GPU hangs.
> Apparently there was not a Bugzilla, and I neglected to mark it with
> Fixes or Cc (my mistake!).  I haven't seen a huge number of affected
> apps with this, so it likely doesn't warrant an emergency release or
> anything...we'll just hit the next one.  Thanks!
> 


Hi, I'm in charge of next 17.3 release.

I'm adding this squashed with:

commit bfe0f3a7027c3104a6ddc662129091c8093e7410
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Tue Oct 31 10:02:02 2017 -0700

    i965: Move PIPE_CONTROL defines and prototypes to
brw_pipe_control.h.


BR,

	J.A.

> commit 55a97db52347f62111a24715078c6035380d3e19
> Author: Kenneth Graunke <kenneth at whitecape.org>
> Date:   Tue Oct 31 09:57:54 2017 -0700
> 
>     i965: Emit CS stall before MEDIA_VFE_STATE.
>     
>     This fixes hangs on GFXBench 5's Aztec Ruins benchmark.
>     
>     Unfortunately, it regresses OglCSCloth performance by about 10%. There
>     are some ideas for fixing that.
>     
>     The Vulkan driver already emits this stall.
>     
>     Reviewed-by: Matt Turner <mattst88 at gmail.com>
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