[Mesa-dev] [PATCH] anv: Stall before fast-clear operations

[Grazvydas Ignotas]

On Sat, Mar 11, 2017 at 9:04 AM, Jason Ekstrand <jason at jlekstrand.net> wrote:
> During initial CCS bring-up, I discovered that you have to do a full CS
> stall prior to doing a CCS resolve as well as afterwards.  It appears
> that the same is needed for fast-clears as well.  This fixes rendering
> corruptions on The Talos Principal on Sky Lake GT4.  The issue hasn't

Principle

> been demonstrated on any other hardware however, given that this appears
> to be a "too many things in the pipe" problem, having it be easier to
> reproduce on a system with more EUs makes sense.  The issues with
> resolves is demonstrable on a GT3 or GT2 so this is probably also a
> problem on all GTs.

Does Talos work for you without glitches now? For me many parts of the
scene flicker, as if I'm being presented the buffer that's still being
rendered. I was hoping this patch would fix it, but it does not
(Skylake GT2).

Gražvydas