QCMTX_OFF
HWRITE4(sc, QCMTX_OFF(idx), QCMTX_APPS_PROC_ID);
if (HREAD4(sc, QCMTX_OFF(idx)) !=
KASSERT(HREAD4(sc, QCMTX_OFF(idx)) == QCMTX_APPS_PROC_ID);
KASSERT(HREAD4(sc, QCMTX_OFF(idx)) == QCMTX_APPS_PROC_ID);
HWRITE4(sc, QCMTX_OFF(idx), 0);