From 73821a53d081de30368262198793e891fbd7318d Mon Sep 17 00:00:00 2001
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Mon, 10 Jul 2017 14:13:12 +0800
Subject: [PATCH] drm/i915/gvt: take runtime pm when do early scan and shadow
Git-commit: 73821a53d081de30368262198793e891fbd7318d
Patch-mainline: v4.14-rc1
References: FATE#322643 bsc#1055900

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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/gvt/execlist.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -724,9 +724,11 @@ static int submit_context(struct intel_v
 	 * 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);