xicp_prio
xicp_write_1(sc, XICP_CPPR, xicp_prio(curcpu()->ci_cpl));
error = opal_set_xive(girq, server, xicp_prio(level & IPL_IRQMASK));
uint8_t oldprio = xicp_prio(ci->ci_cpl);
uint8_t newprio = xicp_prio(new);
xicp_write_1(sc, XICP_CPPR, xicp_prio(ih->ih_ipl));