[Intel-gfx] [PATCH 6/7] drm/i915/gt: Discard stale context state from across idling

[Matthew Auld]

On Sun, 29 Dec 2019 at 18:32, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> Before we idle, on parking, we switch to the kernel context such that we
> have a scratch context loaded while the GPU idle, protecting any
> precious user state. Be paranoid and assume that the idle state may have
> been trashed, and reset the kernel_context image after idling.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Imre Deak <imre.deak at intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>