- /* IBM machines have interrupt parents of various funky types for things
- * like vdevices, events, etc... The trick we use here is to match
- * everything here except the legacy 8259 which is compatible "chrp,iic"
- */
- return !device_is_compatible(node, "chrp,iic");
-}
-
-static int xics_host_map_direct(struct irq_host *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- pr_debug("xics: map_direct virq %d, hwirq 0x%lx\n", virq, hw);
-
- get_irq_desc(virq)->status |= IRQ_LEVEL;
- set_irq_chip_and_handler(virq, &xics_pic_direct, handle_fasteoi_irq);
- return 0;
-}
-
-static int xics_host_map_lpar(struct irq_host *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- pr_debug("xics: map_direct virq %d, hwirq 0x%lx\n", virq, hw);
-
- get_irq_desc(virq)->status |= IRQ_LEVEL;
- set_irq_chip_and_handler(virq, &xics_pic_lpar, handle_fasteoi_irq);
- return 0;
-}
-
-static int xics_host_xlate(struct irq_host *h, struct device_node *ct,
- u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-
-{
- /* Current xics implementation translates everything
- * to level. It is not technically right for MSIs but this
- * is irrelevant at this point. We might get smarter in the future
- */
- *out_hwirq = intspec[0];
- *out_flags = IRQ_TYPE_LEVEL_LOW;
-
- return 0;
-}
-
-static struct irq_host_ops xics_host_direct_ops = {
- .match = xics_host_match,
- .map = xics_host_map_direct,
- .xlate = xics_host_xlate,
-};
-
-static struct irq_host_ops xics_host_lpar_ops = {
- .match = xics_host_match,
- .map = xics_host_map_lpar,
- .xlate = xics_host_xlate,
-};
-
-static void __init xics_init_host(void)
-{
- struct irq_host_ops *ops;
-
- if (firmware_has_feature(FW_FEATURE_LPAR))
- ops = &xics_host_lpar_ops;
- else
- ops = &xics_host_direct_ops;
- xics_host = irq_alloc_host(IRQ_HOST_MAP_TREE, 0, ops,
- XICS_IRQ_SPURIOUS);
- BUG_ON(xics_host == NULL);
- irq_set_default_host(xics_host);
-}
-
-static void __init xics_map_one_cpu(int hw_id, unsigned long addr,
- unsigned long size)
-{
-#ifdef CONFIG_SMP