[Intel-gfx] [PATCH 4/7] drm/i915/gt: Do not restore invalid RS state

[Matthew Auld]

On Sun, 29 Dec 2019 at 18:32, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> Only restore valid resource streamer state from the context image, i.e.
> avoid restoring if we know the image is invalid.
>
> Closes: https://gitlab.freedesktop.org/drm/intel/issues/446
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>