Add system suspend/resume test
Add a test to exercise system-suspend while GPU is active. The goal is to queue up enough work that both the GPU is active, plus work queued up in drm gpu scheduler.
Signed-off-by: Rob Clark robdclark@chromium.org
Note: Not sure this makes sense to add to any case list, since it requires human interaction to resume.. and possibly needs to be run w/ sudo. But it is a useful utility to trigger/debug kernel issues around system suspend.