[PATCH] drm/i915/gvt: take runtime pm when do early scan and shadow

[Zhenyu Wang]

Need to take runtime pm when do early scan/shadow of workload
for request operations.

Fixes: 7fa56bd159bc ("drm/i915/gvt: Audit and shadow workload during ELSP writing")
Cc: Ping Gao <ping.a.gao at intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
---
 drivers/gpu/drm/i915/gvt/execlist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index 28a2c7e8bee1..33808657988a 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -707,9 +707,11 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id,
 	 * as there is only one pre-allocated buf-obj for shadow.
 	 */
 	if (list_empty(workload_q_head(vgpu, ring_id))) {
+		intel_runtime_pm_get(dev_priv);
 		mutex_lock(&dev_priv->drm.struct_mutex);
 		intel_gvt_scan_and_shadow_workload(workload);
 		mutex_unlock(&dev_priv->drm.struct_mutex);
+		intel_runtime_pm_put(dev_priv);
 	}
 
 	queue_workload(workload);
-- 
2.11.0