drm/i915/selftests: Terminate hangcheck sanitycheck forcibly
If all else fails and we are stuck eternally waiting for the undying request, abandon all hope. 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/20181203113701.12106-6-chris@chris-wilson.co.uk
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@ -308,6 +308,7 @@ static int igt_hang_sanitycheck(void *arg)
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goto unlock;
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for_each_engine(engine, i915, id) {
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struct igt_wedge_me w;
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long timeout;
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if (!intel_engine_can_store_dword(engine))
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@ -328,9 +329,14 @@ static int igt_hang_sanitycheck(void *arg)
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i915_request_add(rq);
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timeout = i915_request_wait(rq,
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I915_WAIT_LOCKED,
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MAX_SCHEDULE_TIMEOUT);
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timeout = 0;
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igt_wedge_on_timeout(&w, i915, HZ / 10 /* 100ms timeout*/)
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timeout = i915_request_wait(rq,
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I915_WAIT_LOCKED,
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MAX_SCHEDULE_TIMEOUT);
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if (i915_terminally_wedged(&i915->gpu_error))
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timeout = -EIO;
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i915_request_put(rq);
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if (timeout < 0) {
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