- fill_irq_info(&slot, &irq_entries, PCI_BUS(pr.bdf),
- PCI_DEV(pr.bdf), PCI_FUNC(pr.bdf),
- pr.pin, pr.pirq);
- cell += sizeof(struct pirq_routing) / sizeof(u32);
+
+ slot = check_dup_entry(slot_base, irq_entries,
+ PCI_BUS(pr.bdf), PCI_DEV(pr.bdf));
+ if (slot) {
+ debug("found entry for bus %d device %d, ",
+ PCI_BUS(pr.bdf), PCI_DEV(pr.bdf));
+
+ if (slot->irq[pr.pin - 1].link) {
+ debug("skipping\n");
+
+ /*
+ * Sanity test on the routed PIRQ pin
+ *
+ * If they don't match, show a warning to tell
+ * there might be something wrong with the PIRQ
+ * routing information in the device tree.
+ */
+ if (slot->irq[pr.pin - 1].link !=
+ LINK_N2V(pr.pirq, irq_router.link_base))
+ debug("WARNING: Inconsistent PIRQ routing information\n");
+ continue;
+ }
+ } else {
+ slot = slot_base + irq_entries++;
+ }
+ debug("writing INT%c\n", 'A' + pr.pin - 1);
+ fill_irq_info(slot, PCI_BUS(pr.bdf), PCI_DEV(pr.bdf), pr.pin,
+ pr.pirq);