[Mesa-dev] [PATCH 0/10] Tessellation shaders for Gen7/7.5.

[eocallaghan at alterapraxis.com]

Reviewed-by: Edward O'Callaghan <eocallaghan at alterapraxis.com>

Congrats on getting this working, also thanks!

On 2015-12-25 12:34, Kenneth Graunke wrote:
> This morning, I woke up and somehow "knew" what was causing my HS GPU 
> hangs
> on Gen7/7.5.  It turns out I was (completely) wrong, but through some
> miraculous series of illogical leaps, I arrived at a solution anyway.
> 
> I don't honestly know how I got it working on Christmas Eve after
> failing to figure it out for months on end.  After exhausting every bit
> of documentation and every tool available, and finding zero 
> information,
> somehow randomly flailing in the dark resulted in a solution, today of
> all days.  Honestly, I had pretty much no hope for figuring this out,
> so I'm relieved to have it working at last...
> 
> It turns out that setting interleave on the EOT URB write does bad 
> things.
> Fixing this fixed all the GPU hangs when releasing inputs one at a 
> time,
> I then added back the ability to release inputs in pairs, which caused
> more GPU hangs.  It turned out I needed to be more careful and enable
> both halves.
> 
> Everything seems to be working just fine now, so let's turn it on.
> 
> --Ken
> 
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev