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: 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
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@ -983,7 +983,23 @@ static int __igt_reset_engines(struct drm_i915_private *i915,
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count++;
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if (rq) {
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i915_request_wait(rq, 0, MAX_SCHEDULE_TIMEOUT);
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if (i915_request_wait(rq, 0, HZ / 5) < 0) {
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struct drm_printer p =
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drm_info_printer(i915->drm.dev);
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pr_err("i915_reset_engine(%s:%s):"
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" failed to complete request after reset\n",
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engine->name, test_name);
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intel_engine_dump(engine, &p,
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"%s\n", engine->name);
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i915_request_put(rq);
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GEM_TRACE_DUMP();
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i915_gem_set_wedged(i915);
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err = -EIO;
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break;
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}
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i915_request_put(rq);
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}
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