[PATCH 04/75] drm/i915/gt: Always flush the submission queue on checking for idle

[Chris Wilson]

We check for idle during debug prints and other debugging actions.
Simplify the flow by not touching execlists state.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 0aaf0626425a..727128c0166a 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1248,14 +1248,8 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine)
 		return true;
 
 	/* Waiting to drain ELSP? */
-	if (execlists_active(&engine->execlists)) {
-		synchronize_hardirq(engine->i915->drm.pdev->irq);
-
-		intel_engine_flush_submission(engine);
-
-		if (execlists_active(&engine->execlists))
-			return false;
-	}
+	synchronize_hardirq(engine->i915->drm.pdev->irq);
+	intel_engine_flush_submission(engine);
 
 	/* ELSP is empty, but there are ready requests? E.g. after reset */
 	if (!RB_EMPTY_ROOT(&engine->execlists.queue.rb_root))
-- 
2.20.1