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

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

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312111146.10662-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-03-12 11:11:46 +00:00
parent 4b378c0672
commit 22acf9fc18
1 changed files with 17 additions and 1 deletions
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18
drivers/gpu/drm/i915/selftests/intel_hangcheck.c
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@ -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);
}