[PATCH] drm/i915/execlists: Listen to COMPLETE context event not ACTIVE_IDLE

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Since its inception, execlists has listened to (ACTIVE_IDLE |
ELEMENT_SWITCH) for detecting when one context completed and it either
continued onto the next (in port 1) or idled. We would always see
COMPLETE | ACTIVE_IDLE on the final context-switch event, but on recent
gen it appears that we now get separate ACTIVE_IDLE and COMPLETE events.
In particular, the ACTIVE_IDLE events may not be coupled to a context
(since it is a general state rather than a specific context completion
event).

References: https://bugs.freedesktop.org/show_bug.cgi?id=103800
References: https://bugs.freedesktop.org/show_bug.cgi?id=102035
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Michal Winiarski <michal.winiarski@xxxxxxxxx>
Cc: Michel Thierry <michel.thierry@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_lrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index be6c39adebdf..768946741be5 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -154,7 +154,7 @@
 #define GEN8_CTX_STATUS_LITE_RESTORE	(1 << 15)
 
 #define GEN8_CTX_STATUS_COMPLETED_MASK \
-	 (GEN8_CTX_STATUS_ACTIVE_IDLE | \
+	 (GEN8_CTX_STATUS_COMPLETE | \
 	  GEN8_CTX_STATUS_PREEMPTED | \
 	  GEN8_CTX_STATUS_ELEMENT_SWITCH)
 
-- 
2.15.0

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