338 static void pci_read_bridge_io(struct pci_bus *child)  in pci_read_bridge_io()  argument
340 	struct pci_dev *dev = child->self;  in pci_read_bridge_io()
354 	res = child->resource[0];  in pci_read_bridge_io()
378 static void pci_read_bridge_mmio(struct pci_bus *child)  in pci_read_bridge_mmio()  argument
380 	struct pci_dev *dev = child->self;  in pci_read_bridge_mmio()
386 	res = child->resource[1];  in pci_read_bridge_mmio()
400 static void pci_read_bridge_mmio_pref(struct pci_bus *child)  in pci_read_bridge_mmio_pref()  argument
402 	struct pci_dev *dev = child->self;  in pci_read_bridge_mmio_pref()
409 	res = child->resource[2];  in pci_read_bridge_mmio_pref()
453 void pci_read_bridge_bases(struct pci_bus *child)  in pci_read_bridge_bases()  argument
455 	struct pci_dev *dev = child->self;  in pci_read_bridge_bases()
459 	if (pci_is_root_bus(child))	/* It's a host bus, nothing to read */  in pci_read_bridge_bases()
463 		 &child->busn_res,  in pci_read_bridge_bases()
466 	pci_bus_remove_resources(child);  in pci_read_bridge_bases()
468 		child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];  in pci_read_bridge_bases()
470 	pci_read_bridge_io(child);  in pci_read_bridge_bases()
471 	pci_read_bridge_mmio(child);  in pci_read_bridge_bases()
472 	pci_read_bridge_mmio_pref(child);  in pci_read_bridge_bases()
475 		pci_bus_for_each_resource(child->parent, res, i) {  in pci_read_bridge_bases()
477 				pci_bus_add_resource(child, res,  in pci_read_bridge_bases()
670 	struct pci_bus *child;  in pci_alloc_child_bus()  local
677 	child = pci_alloc_bus(parent);  in pci_alloc_child_bus()
678 	if (!child)  in pci_alloc_child_bus()
681 	child->parent = parent;  in pci_alloc_child_bus()
682 	child->ops = parent->ops;  in pci_alloc_child_bus()
683 	child->msi = parent->msi;  in pci_alloc_child_bus()
684 	child->sysdata = parent->sysdata;  in pci_alloc_child_bus()
685 	child->bus_flags = parent->bus_flags;  in pci_alloc_child_bus()
690 	child->dev.class = &pcibus_class;  in pci_alloc_child_bus()
691 	dev_set_name(&child->dev, "%04x:%02x", pci_domain_nr(child), busnr);  in pci_alloc_child_bus()
697 	child->number = child->busn_res.start = busnr;  in pci_alloc_child_bus()
698 	child->primary = parent->busn_res.start;  in pci_alloc_child_bus()
699 	child->busn_res.end = 0xff;  in pci_alloc_child_bus()
702 		child->dev.parent = parent->bridge;  in pci_alloc_child_bus()
706 	child->self = bridge;  in pci_alloc_child_bus()
707 	child->bridge = get_device(&bridge->dev);  in pci_alloc_child_bus()
708 	child->dev.parent = child->bridge;  in pci_alloc_child_bus()
709 	pci_set_bus_of_node(child);  in pci_alloc_child_bus()
710 	pci_set_bus_speed(child);  in pci_alloc_child_bus()
714 		child->resource[i] = &bridge->resource[PCI_BRIDGE_RESOURCES+i];  in pci_alloc_child_bus()
715 		child->resource[i]->name = child->name;  in pci_alloc_child_bus()
717 	bridge->subordinate = child;  in pci_alloc_child_bus()
720 	ret = device_register(&child->dev);  in pci_alloc_child_bus()
723 	pcibios_add_bus(child);  in pci_alloc_child_bus()
726 	pci_create_legacy_files(child);  in pci_alloc_child_bus()
728 	return child;  in pci_alloc_child_bus()
734 	struct pci_bus *child;  in pci_add_new_bus()  local
736 	child = pci_alloc_child_bus(parent, dev, busnr);  in pci_add_new_bus()
737 	if (child) {  in pci_add_new_bus()
739 		list_add_tail(&child->node, &parent->children);  in pci_add_new_bus()
742 	return child;  in pci_add_new_bus()
769 	struct pci_bus *child;  in pci_scan_bridge()  local
822 		child = pci_find_bus(pci_domain_nr(bus), secondary);  in pci_scan_bridge()
823 		if (!child) {  in pci_scan_bridge()
824 			child = pci_add_new_bus(bus, dev, secondary);  in pci_scan_bridge()
825 			if (!child)  in pci_scan_bridge()
827 			child->primary = primary;  in pci_scan_bridge()
828 			pci_bus_insert_busn_res(child, secondary, subordinate);  in pci_scan_bridge()
829 			child->bridge_ctl = bctl;  in pci_scan_bridge()
832 		cmax = pci_scan_child_bus(child);  in pci_scan_bridge()
863 		child = pci_find_bus(pci_domain_nr(bus), max+1);  in pci_scan_bridge()
864 		if (!child) {  in pci_scan_bridge()
865 			child = pci_add_new_bus(bus, dev, max+1);  in pci_scan_bridge()
866 			if (!child)  in pci_scan_bridge()
868 			pci_bus_insert_busn_res(child, max+1, 0xff);  in pci_scan_bridge()
872 		      | ((unsigned int)(child->primary)     <<  0)  in pci_scan_bridge()
873 		      | ((unsigned int)(child->busn_res.start)   <<  8)  in pci_scan_bridge()
874 		      | ((unsigned int)(child->busn_res.end) << 16);  in pci_scan_bridge()
891 			child->bridge_ctl = bctl;  in pci_scan_bridge()
892 			max = pci_scan_child_bus(child);  in pci_scan_bridge()
927 		pci_bus_update_busn_res_end(child, max);  in pci_scan_bridge()
931 	sprintf(child->name,  in pci_scan_bridge()
933 		pci_domain_nr(bus), child->number);  in pci_scan_bridge()
937 		if ((child->busn_res.end > bus->busn_res.end) ||  in pci_scan_bridge()
938 		    (child->number > bus->busn_res.end) ||  in pci_scan_bridge()
939 		    (child->number < bus->number) ||  in pci_scan_bridge()
940 		    (child->busn_res.end < bus->number)) {  in pci_scan_bridge()
941 			dev_info(&child->dev, "%pR %s hidden behind%s bridge %s %pR\n",  in pci_scan_bridge()
942 				&child->busn_res,  in pci_scan_bridge()
943 				(bus->number > child->busn_res.end &&  in pci_scan_bridge()
944 				 bus->busn_res.end < child->number) ?  in pci_scan_bridge()