[PATCH 2/6] drm/amdkfd: Only load sdma mqd when queue is active

[Zeng, Oak]

Also calls load_mqd with current->mm struct. The mm
struct is used to read back user wptr of the queue.

Change-Id: I0f6d085878358dcd3a413054dbe61d1ca0fdf66d
Signed-off-by: Oak Zeng <Oak.Zeng at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 5 ++++-
 1 file changed, 4 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 00ca3dd..dab6ef4 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -995,8 +995,11 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 	if (retval)
 		goto out_deallocate_doorbell;
 
+	if (!q->properties.is_active)
+		return 0;
+
 	retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, 0, 0, &q->properties,
-				NULL);
+				current->mm);
 	if (retval)
 		goto out_uninit_mqd;
 
-- 
2.7.4