From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 5 Feb 2018 09:21:59 +0000
Subject: drm/i915: Show the GPU state when declaring wedged
Git-commit: 559e040f1f083b6478011f2961db230da8047119
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Dump each engine state when i915_gem_set_wedged() is called to give us
some more clues as to why we had to terminate the GPU.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180205092201.19476-5-chris@chris-wilson.co.uk

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/i915_gem.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3207,6 +3207,13 @@ void i915_gem_set_wedged(struct drm_i915
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 
+	if (drm_debug & DRM_UT_DRIVER) {
+		struct drm_printer p = drm_debug_printer(__func__);
+
+		for_each_engine(engine, i915, id)
+			intel_engine_dump(engine, &p, "%s\n", engine->name);
+	}
+
 	/*
 	 * First, stop submission to hw, but do not yet complete requests by
 	 * rolling the global seqno forward (since this would complete requests