drm/i915: Suspend GuC prior to GPU Reset during GEM suspend

i915 is currently doing a full GPU reset at the end of
i915_gem_suspend() followed by GuC suspend in i915_drm_suspend(). This
GPU reset clobbers the GuC, causing the suspend request to then fail,
leaving the GuC in an undefined state. We need to tell the GuC to
suspend before we do the direct intel_gpu_reset().

v2: Commit message update. (Chris, Daniele)

Fixes: 1c777c5d1dcd ("drm/i915/hsw: Fix GPU hang during resume from S3-devices state")
Cc: Jeff McGee <[email protected]>
Cc: Daniele Ceraolo Spurio <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Mika Kuoppala <[email protected]>
Signed-off-by: Sagar Arun Kamble <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Acked-by: Chris Wilson <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
(cherry picked from commit fd08923384385400101c71ac0d21d37d6b23b00d)
Signed-off-by: Jani Nikula <[email protected]>

0 files changed, 0 insertions, 0 deletions