_wait_for_atomic
ret = _wait_for_atomic(done, fast_timeout_us, 0);
err = _wait_for_atomic(i915_in_reset(pdev), 50000, 0);
err = _wait_for_atomic(!i915_in_reset(pdev), 50000, 0);
return _wait_for_atomic(g4x_reset_complete(pdev), 50000, 0);
ret = _wait_for_atomic(g4x_reset_complete(pdev), 50000, 0);
ret = _wait_for_atomic(g4x_reset_complete(pdev), 50000, 0);
ret__ = _wait_for_atomic((COND), (US), 0); \
_wait_for_atomic((COND), (US), 1); \
ret = _wait_for_atomic(done, fast_timeout_us, 0);