Commit d6edb6e3 authored Jul 21, 2017 by Chris Wilson Committed by Daniel Vetter Jul 27, 2017

drm/i915: Check the execlist queue for pending requests before declaring idle



Including a check against the execlist queue before calling the engine
idle and passing hangcheck.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-6-chris@chris-wilson.co.uk


Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 5cce5e31

drivers/gpu/drm/i915/intel_engine_cs.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1283,6 +1283,10 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine)
		if (port_request(&engine->execlist_port[0]))
		return false;

		/* ELSP is empty, but there are ready requests? */
		if (READ_ONCE(engine->execlist_first))
		return false;

		/* Ring stopped? */
		if (!ring_is_idle(engine))
		return false;