From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 2 May 2018 23:03:13 +0100
Subject: drm/i915: Mark the hangcheck as idle when unparking the engines
Git-commit: e21b141376f9b654e782757e156886c34bdf12ae
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

As we unpark the engines and are about to begin a new cycle of activity,
mark the current status of the hangceck as idle so that we avoid
carrying over a stale timestamp/action into the next cycle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180502220313.6459-2-chris@chris-wilson.co.uk

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/intel_engine_cs.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1073,6 +1073,8 @@ void intel_engines_unpark(struct drm_i91
 	for_each_engine(engine, i915, id) {
 		if (engine->unpark)
 			engine->unpark(engine);
+
+		intel_engine_init_hangcheck(engine);
 	}
 }