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

[Chris Wilson]

Quoting Tvrtko Ursulin (2020-03-04 15:31:44)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> 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 at intel.com>
> Cc: Michał Winiarski <michal.winiarski at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: piotr.zdunowski at intel.com
> Cc: michal.mrozek at intel.com
> Cc: Tony Ye <tony.ye at intel.com>
> Cc: Rafael Antognolli <rafael.antognolli at intel.com>

/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 at chris-wilson.co.uk>
-Chris