Commit 0ea60c1d authored Jan 24, 2020 by Chris Wilson

drm/i915/gt: Flush engine parking before release

Due to the asynchronous nature of releasing our wakerefs, we can signal
the main GT wakeref as complete before the individual engines have
cleared their own wakerefs. During shutdown we assert that the engines
are indeed parked before we release them, but for this to be always true
we need to flush their workers as well.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200124143339.140988-1-chris@chris-wilson.co.uk

parent 646603d9

drivers/gpu/drm/i915/gt/intel_engine_cs.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -408,6 +408,7 @@ void intel_engines_release(struct intel_gt *gt)

		/* Decouple the backend; but keep the layout for late GPU resets */
		for_each_engine(engine, gt, id) {
		intel_wakeref_wait_for_idle(&engine->wakeref);
		GEM_BUG_ON(intel_engine_pm_is_awake(engine));

		if (!engine->release)