On Sun, Nov 27, 2011 at 15:58, Daniel Vetter <[email protected]> wrote:
> Otherwise hangcheck spuriously fires when running blitter/bsd-only > workloads. > > Contrary to a similar patch by Ben Widawsky this does not check > INSTDONE of the other rings. Chris Wilson implied that in a failure to > detect a hang, most likely because INSTDONE was fluctuating. Thus only > check ACTHD, which as far as I know is rather reliable. Also, blitter > and bsd rings can't launch complex tasks from a single instruction > (like 3D_PRIM on the render with complex or even infinite shaders). > > This fixes spurious gpu hang detection when running > tests/gem_hangcheck_forcewake on snb/ivb. > > Signed-Off-by: Daniel Vetter <[email protected]> > Reviewed-by: Eugeni Dodonov <[email protected]> -- Eugeni Dodonov <http://eugeni.dodonov.net/>
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