[PATCH 6/7] drm/xe: Kick start GPU scheduler on teardown

[Stuart Summers <stuart.summers@intel.com>]

Ensure all remaining GPU scheduler messages are processed
on teardown. We already have a wait here, but if the
scheduler was stopped while we have outstanding transactions,
those queues will never be fully drained.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
---
 drivers/gpu/drm/xe/xe_guc_submit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c
index 5ec1e4a83d68..c923f13a13ef 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -276,6 +276,12 @@ static void guc_submit_fini(struct drm_device *drm, void *arg)
 	struct xe_gt *gt = guc_to_gt(guc);
 	int ret;
 
+	/*
+	 * Kick start the scheduler here to ensure any remaining
+	 * messages are processed
+	 */
+	xe_guc_submit_start(guc);
+
 	ret = wait_event_timeout(guc->submission_state.fini_wq,
 				 xa_empty(&guc->submission_state.exec_queue_lookup),
 				 HZ * 5);
-- 
2.34.1