hppa_intr_ipending
ci->ci_ipending |= hppa_intr_ipending(&ci->ci_ir, eirr);
ci->ci_ipending |= hppa_intr_ipending(sir, lvl);
pending |= hppa_intr_ipending(nir, *(nir->ir_req));
int hppa_intr_ipending(struct hppa_interrupt_register *, int);