Re: [PATCH] drm/i915/tgl: WaDisableGPGPUMidThreadPreemption

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Quoting Tvrtko Ursulin (2020-03-04 15:31:44)
> From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> 
> Enable FtrPerCtxtPreemptionGranularityControl bit and select thread-
> group as the default preemption level.
> 
> v2:
>  * Remove register whitelisting (Rafael, Tony).
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> Cc: piotr.zdunowski@xxxxxxxxx
> Cc: michal.mrozek@xxxxxxxxx
> Cc: Tony Ye <tony.ye@xxxxxxxxx>
> Cc: Rafael Antognolli <rafael.antognolli@xxxxxxxxx>

/me mutters

So do we need to disable force-preemption on rcs if we can't do
fine-grained preemption?

Acked-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris
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