[PATCH] drm/amdkfd: Fix reset event signal

[Amber Lin <Amber.Lin@amd.com>]

During the KFD/KCQ coordination rework, bad queues not requiring reset
were combined into the rework and generated wrong reset signals to the
process. Fix it by adding the reset check.

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 1d12901d4823..828a7ce6eeca 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -474,7 +474,11 @@ static int reset_queues_mes(struct device_queue_manager *dqm, struct queue *q)
 		goto fail;
 
 	dqm->detect_hang_count = num_hung;
-	kfd_signal_reset_event(dqm->dev);
+	/* When MES doesn't detect any queue hang, no reset happens. Don't signal reset
+	 * event.
+	 */
+	if (dqm->detect_hang_count)
+		kfd_signal_reset_event(dqm->dev);
 
 fail:
 	dqm->detect_hang_count = 0;
-- 
2.43.0