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

[Gert Wollny]

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). 

Best, 
Gert