[Intel-gfx] [PATCH 1/5] drm/i915: Move GEM sanitize from resume_early to resume

[Chris Wilson]

Quoting Joonas Lahtinen (2018-06-14 13:00:22)
> Quoting Chris Wilson (2018-06-14 12:40:59)
> > This should be a no-op in terms of our control flow, we move the
> > sanitization (GPU reset) from the bottom of the early resume phase to
> > the top of the next. However, following hibernation debug, the power
> > code skips the early resume phase, but as we are about to completely
> > restore the GTT mappings, we first need to stop the GPU using them i.e.
> > perform a GPU reset (i915_gem_sanitize()).
> > 
> > Testcase: igt/gem_exec_suspend/basic-S4-devices
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Imre Deak <imre.deak at intel.com>
> > Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> 
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

And pushed, because the GPU hangs on S4-device shows up occasionally in
drm-tip as well. It's just they became frequent and persistent enough
with the last patch in series that I noticed.
-Chris