ifu_w
UBAPURGE(is->is_ifuba.ifu_uba, is->is_ifuba.ifu_w.ifrw_bdp);
IL_WCSR(IL_BAR, LOWORD(sc->sc_ifuba.ifu_w.ifrw_info));
csr = ((sc->sc_ifuba.ifu_w.ifrw_info >> 2) & IL_EUA)