[Intel-gfx] [PATCH 2/2] drm/i915/icl: Apply WaEnablePreemptionGranularityControlByUMD

[Chris Wilson]

Quoting Michał Winiarski (2019-03-05 12:48:27)
> There are still some cases where userspace needs to change the
> preemption granularity for compute workloads. Let's whitelist the
> per-ctx granularity control register to allow it.
> 
> Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
> Cc: Anuj Phogat <anuj.phogat at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Cc: Rafael Antognolli <rafael.antognolli at intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>

Trusting that since it was context saved on earlier gen, it remains so.
(One more selftest to write.)

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris