340 static void pci_read_bridge_io(struct pci_bus *child)  in pci_read_bridge_io()  argument
342 	struct pci_dev *dev = child->self;  in pci_read_bridge_io()
356 	res = child->resource[0];  in pci_read_bridge_io()
380 static void pci_read_bridge_mmio(struct pci_bus *child)  in pci_read_bridge_mmio()  argument
382 	struct pci_dev *dev = child->self;  in pci_read_bridge_mmio()
388 	res = child->resource[1];  in pci_read_bridge_mmio()
402 static void pci_read_bridge_mmio_pref(struct pci_bus *child)  in pci_read_bridge_mmio_pref()  argument
404 	struct pci_dev *dev = child->self;  in pci_read_bridge_mmio_pref()
411 	res = child->resource[2];  in pci_read_bridge_mmio_pref()
455 void pci_read_bridge_bases(struct pci_bus *child)  in pci_read_bridge_bases()  argument
457 	struct pci_dev *dev = child->self;  in pci_read_bridge_bases()
461 	if (pci_is_root_bus(child))	/* It's a host bus, nothing to read */  in pci_read_bridge_bases()
465 		 &child->busn_res,  in pci_read_bridge_bases()
468 	pci_bus_remove_resources(child);  in pci_read_bridge_bases()
470 		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];  in pci_read_bridge_bases()
472 	pci_read_bridge_io(child);  in pci_read_bridge_bases()
473 	pci_read_bridge_mmio(child);  in pci_read_bridge_bases()
474 	pci_read_bridge_mmio_pref(child);  in pci_read_bridge_bases()
477 		pci_bus_for_each_resource(child->parent, res, i) {  in pci_read_bridge_bases()
479 				pci_bus_add_resource(child, res,  in pci_read_bridge_bases()
706 	struct pci_bus *child;  in pci_alloc_child_bus()  local
713 	child = pci_alloc_bus(parent);  in pci_alloc_child_bus()
714 	if (!child)  in pci_alloc_child_bus()
717 	child->parent = parent;  in pci_alloc_child_bus()
718 	child->ops = parent->ops;  in pci_alloc_child_bus()
719 	child->msi = parent->msi;  in pci_alloc_child_bus()
720 	child->sysdata = parent->sysdata;  in pci_alloc_child_bus()
721 	child->bus_flags = parent->bus_flags;  in pci_alloc_child_bus()
726 	child->dev.class = &pcibus_class;  in pci_alloc_child_bus()
727 	dev_set_name(&child->dev, "%04x:%02x", pci_domain_nr(child), busnr);  in pci_alloc_child_bus()
733 	child->number = child->busn_res.start = busnr;  in pci_alloc_child_bus()
734 	child->primary = parent->busn_res.start;  in pci_alloc_child_bus()
735 	child->busn_res.end = 0xff;  in pci_alloc_child_bus()
738 		child->dev.parent = parent->bridge;  in pci_alloc_child_bus()
742 	child->self = bridge;  in pci_alloc_child_bus()
743 	child->bridge = get_device(&bridge->dev);  in pci_alloc_child_bus()
744 	child->dev.parent = child->bridge;  in pci_alloc_child_bus()
745 	pci_set_bus_of_node(child);  in pci_alloc_child_bus()
746 	pci_set_bus_speed(child);  in pci_alloc_child_bus()
750 		child->resource[i] = &bridge->resource[PCI_BRIDGE_RESOURCES+i];  in pci_alloc_child_bus()
751 		child->resource[i]->name = child->name;  in pci_alloc_child_bus()
753 	bridge->subordinate = child;  in pci_alloc_child_bus()
756 	pci_set_bus_msi_domain(child);  in pci_alloc_child_bus()
757 	ret = device_register(&child->dev);  in pci_alloc_child_bus()
760 	pcibios_add_bus(child);  in pci_alloc_child_bus()
763 	pci_create_legacy_files(child);  in pci_alloc_child_bus()
765 	return child;  in pci_alloc_child_bus()
771 	struct pci_bus *child;  in pci_add_new_bus()  local
773 	child = pci_alloc_child_bus(parent, dev, busnr);  in pci_add_new_bus()
774 	if (child) {  in pci_add_new_bus()
776 		list_add_tail(&child->node, &parent->children);  in pci_add_new_bus()
779 	return child;  in pci_add_new_bus()
806 	struct pci_bus *child;  in pci_scan_bridge()  local
859 		child = pci_find_bus(pci_domain_nr(bus), secondary);  in pci_scan_bridge()
860 		if (!child) {  in pci_scan_bridge()
861 			child = pci_add_new_bus(bus, dev, secondary);  in pci_scan_bridge()
862 			if (!child)  in pci_scan_bridge()
864 			child->primary = primary;  in pci_scan_bridge()
865 			pci_bus_insert_busn_res(child, secondary, subordinate);  in pci_scan_bridge()
866 			child->bridge_ctl = bctl;  in pci_scan_bridge()
869 		cmax = pci_scan_child_bus(child);  in pci_scan_bridge()
900 		child = pci_find_bus(pci_domain_nr(bus), max+1);  in pci_scan_bridge()
901 		if (!child) {  in pci_scan_bridge()
902 			child = pci_add_new_bus(bus, dev, max+1);  in pci_scan_bridge()
903 			if (!child)  in pci_scan_bridge()
905 			pci_bus_insert_busn_res(child, max+1, 0xff);  in pci_scan_bridge()
909 		      | ((unsigned int)(child->primary)     <<  0)  in pci_scan_bridge()
910 		      | ((unsigned int)(child->busn_res.start)   <<  8)  in pci_scan_bridge()
911 		      | ((unsigned int)(child->busn_res.end) << 16);  in pci_scan_bridge()
928 			child->bridge_ctl = bctl;  in pci_scan_bridge()
929 			max = pci_scan_child_bus(child);  in pci_scan_bridge()
964 		pci_bus_update_busn_res_end(child, max);  in pci_scan_bridge()
968 	sprintf(child->name,  in pci_scan_bridge()
970 		pci_domain_nr(bus), child->number);  in pci_scan_bridge()
974 		if ((child->busn_res.end > bus->busn_res.end) ||  in pci_scan_bridge()
975 		    (child->number > bus->busn_res.end) ||  in pci_scan_bridge()
976 		    (child->number < bus->number) ||  in pci_scan_bridge()
977 		    (child->busn_res.end < bus->number)) {  in pci_scan_bridge()
978 			dev_info(&child->dev, "%pR %s hidden behind%s bridge %s %pR\n",  in pci_scan_bridge()
979 				&child->busn_res,  in pci_scan_bridge()
980 				(bus->number > child->busn_res.end &&  in pci_scan_bridge()
981 				 bus->busn_res.end < child->number) ?  in pci_scan_bridge()