I915_WEDGED
return unlikely(test_bit(I915_WEDGED, &error->flags));
if (test_and_set_bit(I915_WEDGED, &i915->gpu_error.flags))
if (!test_bit(I915_WEDGED, &i915->gpu_error.flags))
clear_bit(I915_WEDGED, &i915->gpu_error.flags);
#define I915_RESET_ENGINE (I915_WEDGED - I915_NUM_ENGINES)
if (!test_bit(I915_WEDGED, &error->flags))