Function mips_pic_map_fixed_intrs

freebsd/mips/mips/mips_pic.c:524–543

* * Produce fixed IRQ mappings for all MIPS IRQs. * * Non-FDT/OFW MIPS targets do not provide an equivalent to OFW_BUS_MAP_INTR(); * it is instead necessary to reserve INTRNG IRQ# 0-7 for use by MIPS device * drivers that assume INTRNG IRQs 0-7 are directly mapped to MIPS IRQs 0-7. * * XXX: There is no support in INTRNG for reserving a fixed IRQ range. However, * we should be called prio

 *			regular unix error code will be returned.
 */
int
mips_pic_map_fixed_intrs(void)
{
	int error;

	for (u_int i = 0; i < nitems(mips_pic_intrs); i++) {
		struct mips_pic_intr *intr;

		if ((error = mips_pic_map_fixed_intr(i, &intr)))
			return (error);

		/* INTRNG IRQs 0-7 must be directly mapped to MIPS IRQs 0-7 */
		if (intr->intr_irq != intr->mips_irq) {
			panic("invalid IRQ mapping: %u->%u", intr->intr_irq,
			    intr->mips_irq);
		}
	}

	return (0);
}

/**
 * If @p r references a MIPS interrupt mapped by the MIPS32 interrupt