[PATCH 2/5] switch-off

[Chris Wilson]

---
 drivers/gpu/drm/i915/gt/intel_gt_pm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 0bd303d2823e..f41612faa269 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -295,6 +295,9 @@ void intel_gt_suspend_prepare(struct intel_gt *gt)
 	wait_for_suspend(gt);
 
 	intel_uc_suspend(&gt->uc);
+
+	/* Flush all the contexts and internal state before turning off GGTT */
+	gt_sanitize(gt, false);
 }
 
 static suspend_state_t pm_suspend_target(void)
@@ -337,7 +340,7 @@ void intel_gt_suspend_late(struct intel_gt *gt)
 		intel_llc_disable(&gt->llc);
 	}
 
-	gt_sanitize(gt, false);
+	gt_sanitize(gt, false); /* Be paranoid, remove all residual GPU state */
 
 	GT_TRACE(gt, "\n");
 }
-- 
2.20.1