[Intel-gfx] [PATCH] drm/i915/tgl: Disable read-only support

[Chris Wilson]

Quoting Mika Kuoppala (2019-09-11 14:08:10)
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > The same read-only affliction as befell Icelake is affecting Tigerlake.
> > Disable the read-only support as cleary it was not fixed.
> >
> > Testcase: igt/i915_selftests/live_gem_context
> > References: 3936867dbc1e ("drm/i915: Disable read only ppgtt support for gen11")
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

Pushed, we can try again later, but for now this should remove one more
fail when Tigerlake comes back online. Provided it survives long enough
to run selftests.
-Chris