pci_intr_fixup
int pci_intr_fixup(pci_chipset_tag_t, bus_space_tag_t, uint16_t *);
rv = pci_intr_fixup(NULL, x86_bus_space_io, &pciirq);
void (*pci_intr_fixup)(int, int, int *);
(*platform->pci_intr_fixup)(bus, dev, iline);
void pci_intr_fixup(int, int, int *);
void (*pci_intr_fixup)(void);
platform_quirks[i].pci_intr_fixup != NULL)
(*platform_quirks[i].pci_intr_fixup)();