[PATCH 2/3] drm/xe/guc/ct: Increase wait timeout for g2h response

Badal Nilawar badal.nilawar at intel.com
Wed Oct 9 10:56:44 UTC 2024


Occasionally, the G2H worker starts running after a delay of more than
a second even after being queued and activated by the Linux workqueue
subsystem.
To prevent G2H timeout errors, the wait timeout is being increased.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/issues/1620
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/issues/2902
Signed-off-by: Badal Nilawar <badal.nilawar at intel.com>
Cc: Matthew Brost <matthew.brost at intel.com>
Cc: Matthew Auld <matthew.auld at intel.com>
Cc: John Harrison <John.C.Harrison at Intel.com>
---
 drivers/gpu/drm/xe/xe_guc_ct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index b93b2821e4e8..dcc95c01b6f0 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -1019,7 +1019,7 @@ static int guc_ct_send_recv(struct xe_guc_ct *ct, const u32 *action, u32 len,
 		return ret;
 	}
 
-	ret = wait_event_timeout(ct->g2h_fence_wq, g2h_fence.done, HZ);
+	ret = wait_event_timeout(ct->g2h_fence_wq, g2h_fence.done, HZ * 3);
 
 	/*
 	 * It is possible that the g2h request may be cancelled while waiting for a response due
-- 
2.34.1



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