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

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@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index 28a2c7e8bee1412466a2bf5cf01c33c7a711dc96..33808657988a26eb2f4bd3f83aa275bacb9db7b5 100644 (file)
--- 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);