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Commit 95a19ab4 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/selftests: Pretty print engine state when requests fail to start 



During hangcheck testing, we try to execute requests following the GPU
reset, and in particular want to try and debug when those fail.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171009110301.21705-2-chris@chris-wilson.co.uk


Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
parent f636edb2

drivers/gpu/drm/i915/selftests/intel_hangcheck.c

+10 −0
Original line number Diff line number Diff line
@@ -624,8 +624,11 @@ static int igt_wait_reset(void *arg) 
	__i915_add_request(rq, true);



	if (!wait_for_hang(&h, rq)) {

		struct drm_printer p = drm_info_printer(i915->drm.dev);



		pr_err("Failed to start request %x, at %x\n",

		       rq->fence.seqno, hws_seqno(&h, rq));

		intel_engine_dump(rq->engine, &p);



		i915_reset(i915, 0);

		i915_gem_set_wedged(i915);
@@ -716,8 +719,12 @@ static int igt_reset_queue(void *arg) 
			__i915_add_request(rq, true);



			if (!wait_for_hang(&h, prev)) {

				struct drm_printer p = drm_info_printer(i915->drm.dev);



				pr_err("Failed to start request %x, at %x\n",

				       prev->fence.seqno, hws_seqno(&h, prev));

				intel_engine_dump(rq->engine, &p);



				i915_gem_request_put(rq);

				i915_gem_request_put(prev);
@@ -818,8 +825,11 @@ static int igt_handle_error(void *arg) 
	__i915_add_request(rq, true);



	if (!wait_for_hang(&h, rq)) {

		struct drm_printer p = drm_info_printer(i915->drm.dev);



		pr_err("Failed to start request %x, at %x\n",

		       rq->fence.seqno, hws_seqno(&h, rq));

		intel_engine_dump(rq->engine, &p);



		i915_reset(i915, 0);

		i915_gem_set_wedged(i915);