if (sparc64_pci_conf_read == NULL) panic("no pci_conf_read"); return ((*sparc64_pci_conf_read)(pc, tag, reg));
return (pc->conf_read(pc, tag, reg));
pci_conf_read(pc, tag, reg)	pci_chipset_tag_t pc;	pcitag_t tag;	int reg;{	if (sparc64_pci_conf_read == NULL)		panic("no pci_conf_read");	return ((*sparc64_pci_conf_read)(pc, tag, reg));}