Re: [PATCH] drm/i915: Disable SAMPLER_STATE prefetching on all Gen11 steppings.

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Quoting Mika Kuoppala (2019-06-25 10:48:22)
> Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> 
> > From: Kenneth Graunke <kenneth@xxxxxxxxxxxxx>
> >
> > The Demand Prefetch workaround (binding table prefetching) only applies
> > to Icelake A0/B0.  But the Sampler Prefetch workaround needs to be
> > applied to all Gen11 steppings, according to a programming note in the
> > SARCHKMD documentation.
> >
> > Using the Intel Gallium driver, I have seen intermittent failures in
> > the dEQP-GLES31.functional.copy_image.non_compressed.* tests.  After
> > applying this workaround, the tests reliably pass.
> >
> > v2: Remove the overlap with a pre-production w/a
> >
> > BSpec: 9663
> > Signed-off-by: Kenneth Graunke <kenneth@xxxxxxxxxxxxx>
> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: stable@xxxxxxxxxxxxxxx
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>

And pushed. Thanks for the patch!
-Chris
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