[PATCH v7 09/14] drm/amdgpu: track the userq bo va for its obj management

[Prike Liang]

Track the userq obj for its life time, and reference and
dereference the buffer counter at its creating and destroying
period.

Signed-off-by: Prike Liang <prike.li...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index 5882f1c514f9..b90504b6f6c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -522,6 +522,8 @@ amdgpu_userq_destroy(struct drm_file *filp, int queue_id)
                drm_warn(adev_to_drm(uq_mgr->adev), "trying to destroy a HW 
mapping userq\n");
                queue->state = AMDGPU_USERQ_STATE_HUNG;
        }
+
+       amdgpu_userq_buffer_vas_put(&fpriv->vm, queue);
        amdgpu_userq_cleanup(uq_mgr, queue, queue_id);
        mutex_unlock(&uq_mgr->userq_mutex);
 
@@ -644,6 +646,9 @@ amdgpu_userq_create(struct drm_file *filp, union 
drm_amdgpu_userq *args)
                goto unlock;
        }
 
+       /* refer to the userq objects vm bo*/
+       amdgpu_userq_buffer_vas_get(queue->vm, queue);
+
        qid = idr_alloc(&uq_mgr->userq_idr, queue, 1, AMDGPU_MAX_USERQ_COUNT, 
GFP_KERNEL);
        if (qid < 0) {
                drm_file_err(uq_mgr->file, "Failed to allocate a queue id\n");
-- 
2.34.1