[Mesa-dev] [RFC] r600/evergreen compute shader + glsl 4.30 support

[Dave Airlie]

On 30 November 2017 at 22:06, Gert Wollny <gw.fossdev at gmail.com> wrote:
> Am Donnerstag, den 30.11.2017, 17:56 +1000 schrieb Dave Airlie:
>> On 30 November 2017 at 17:20, Gert Wollny <gw.fossdev at gmail.com>
>> wrote:
>> > Am Donnerstag, den 30.11.2017, 09:30 +1000 schrieb Dave Airlie:
>> > > On 29 November 2017 at 22:46, Gert Wollny <gw.fossdev at gmail.com>
>> > > wrote:
>> > > >
>> > > >
>> > > > I run the arb_compute_shader piglits on BARTS, the piglits
>> > > >
>> > > >    basic-texelfetch
>> > > >    border-color
>> > > >    multiple-workgroups
>> > > >    basic-uniform-access
>> > > >    multiple-texture-reading
>> > > >    simple-barrier
>> > > >
>> > > > result in GPU lockups and, consequently, fail. The other 20
>> > > > tests
>> > > > pass.
>> > >
>> > > Does the attached patch help with the lockups at all?
>> >
>> > no, no changes with the arb_compute_shader tests,
>>
>> Could you give:
>> https://cgit.freedesktop.org/~airlied/mesa/log/?h=r600-wip-cs a spin?
>>
>> I'm guessing WIP hacks might fix it, but I really want to avoid
>> flushing. it might be necessary to reemit a bunch of graphics state.
>
> To compile this I had to switch to LLVM 3.9, because the tree doesn't
> compile with LLVM >= 4.0.
>
> Anyway, it fixes all the arb_compute_shader piglits and I by using
> MESA_GL_VERSION_OVERRIDE=4.3 I am even able to walk around in a
> properly rendered "Alien Isolation" (25-45 FPS, GPU: Radeon 6850 HD,
> CPU: FX 6300).
>

I've pushed a bunch of the code, except for the final enables,

Care to give my r600-gl-4.3 branch a spin?

It has the workaround I think I need to stabilise stuff for now.

Dave.