drm/amdkfd: allow unregister process with queues

commit 1e5ec956a057585adaa1365615c82810b2f5356f upstream.

Sometimes we might unregister process that have queues, because we couldn't
preempt the queues. Until now we blocked it with BUG_ON but instead just
print it as debug.

Reviewed-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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 d8135ad..0ebca86 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -429,9 +429,10 @@ static int unregister_process_nocpsch(struct device_queue_manager *dqm,
 
        BUG_ON(!dqm || !qpd);
 
-       BUG_ON(!list_empty(&qpd->queues_list));
+       pr_debug("In func %s\n", __func__);
 
-       pr_debug("kfd: In func %s\n", __func__);
+       pr_debug("qpd->queues_list is %s\n",
+                       list_empty(&qpd->queues_list) ? "empty" : "not empty");
 
        retval = 0;
        mutex_lock(&dqm->lock);