arm_gic_v3_intr
err = intr_pic_claim_root(dev, ACPI_INTR_XREF, arm_gic_v3_intr, sc,
err = intr_pic_claim_root(dev, xref, arm_gic_v3_intr, sc, INTR_ROOT_IRQ);
int arm_gic_v3_intr(void *);