drm/i915: Assert that we successfully downclock the GPU before suspend
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 25 Nov 2014 11:56:33 +0000 (11:56 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 3 Dec 2014 08:35:12 +0000 (09:35 +0100)
commitbdcf120bfcb7e3b9356e96cdd7a6ac3c28062ffc
treef56eb2a43d513ba26809ebf32f6a8114d1a72fee
parent4feb765943c42dbc706dac348e8a893325b1153f
drm/i915: Assert that we successfully downclock the GPU before suspend

Before suspending, we wait upon the outstanding GPU requests and flush
our pending idle handlers. This should downclock the GPU to its lowest
power state. Add a WARN to check that the delayed tasks were run and did
their job properly.

Suggested-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c