[Intel-gfx] [PATCH] drm/i915/tgl: Wa_1607138340

[Chris Wilson]

Quoting Chris Wilson (2020-08-03 14:20:17)
> From: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> 
> Avoid possible cs hang with semaphores by disabling lite restore.
> 
> References: 921f0c47f228 ("drm/i915: Revert "drm/i915/tgl: Wa_1607138340"")
> Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Cc: Tony Ye <tony.ye at intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> ---
> Let's give this another spin. The hangs are still occuring on tgl-b0.

Ok, scratch this idea. Got a similar hang with this w/a inplace.
-Chris