Re: [RFC] drm/i915/hangcheck: Look at instdone for all engines

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Quoting Tvrtko Ursulin (2019-06-10 14:01:10)
> From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> 
> It seems intel_engine_get_instdone is able to get instdone for all engines
> but intel_hangcheck.c/subunits_stuck decides to ignore it for non render.
> 
> We can just drop the check in subunits_stuck since the checks on
> unavailable fields will always return stuck, which when bitwise and with
> the potential unstuck instdone is harmless.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> Would actually using the available data improve hang detection?

No, just prolong it :)
-Chris
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