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Commit 22acf9fc authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/selftests: Improve error detection of reset failure 



Use a timedwait to promptly detect if the recovery after reset fails and
provide a meaningful debug dump.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312111146.10662-2-chris@chris-wilson.co.uk
parent 4b378c06

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

+17 −1
Original line number Diff line number Diff line
@@ -983,7 +983,23 @@ static int __igt_reset_engines(struct drm_i915_private *i915, 
			count++;



			if (rq) {

				i915_request_wait(rq, 0, MAX_SCHEDULE_TIMEOUT);

				if (i915_request_wait(rq, 0, HZ / 5) < 0) {

					struct drm_printer p =

						drm_info_printer(i915->drm.dev);



					pr_err("i915_reset_engine(%s:%s):"

					       " failed to complete request after reset\n",

					       engine->name, test_name);

					intel_engine_dump(engine, &p,

							  "%s\n", engine->name);

					i915_request_put(rq);



					GEM_TRACE_DUMP();

					i915_gem_set_wedged(i915);

					err = -EIO;

					break;

				}



				i915_request_put(rq);

			}