Including a check against the execlist queue before calling the engine
idle and passing hangcheck.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c
b/drivers/gpu/drm/i915/intel_engine_cs.c
index cba120f3d89d..fbac94557ffa 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1407,6 +1407,10 @@ 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;
--
2.13.2
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