91 	put_device(pci_bus->bridge);  in release_pcibus_dev()
346 static void pci_read_bridge_windows(struct pci_dev *bridge)  in pci_read_bridge_windows()  argument
351 	pci_read_config_word(bridge, PCI_IO_BASE, &io);  in pci_read_bridge_windows()
353 		pci_write_config_word(bridge, PCI_IO_BASE, 0xe0f0);  in pci_read_bridge_windows()
354 		pci_read_config_word(bridge, PCI_IO_BASE, &io);  in pci_read_bridge_windows()
355 		pci_write_config_word(bridge, PCI_IO_BASE, 0x0);  in pci_read_bridge_windows()
358 		bridge->io_window = 1;  in pci_read_bridge_windows()
365 	if (bridge->vendor == PCI_VENDOR_ID_DEC && bridge->device == 0x0001)  in pci_read_bridge_windows()
368 	pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);  in pci_read_bridge_windows()
370 		pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE,  in pci_read_bridge_windows()
372 		pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);  in pci_read_bridge_windows()
373 		pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, 0x0);  in pci_read_bridge_windows()
378 	bridge->pref_window = 1;  in pci_read_bridge_windows()
387 		pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32, &pmem);  in pci_read_bridge_windows()
388 		pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32,  in pci_read_bridge_windows()
390 		pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32, &tmp);  in pci_read_bridge_windows()
391 		pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32, pmem);  in pci_read_bridge_windows()
393 			bridge->pref_64_window = 1;  in pci_read_bridge_windows()
569 	struct pci_host_bridge *bridge = to_pci_host_bridge(dev);  in devm_pci_release_host_bridge_dev()  local
571 	if (bridge->release_fn)  in devm_pci_release_host_bridge_dev()
572 		bridge->release_fn(bridge);  in devm_pci_release_host_bridge_dev()
574 	pci_free_resource_list(&bridge->windows);  in devm_pci_release_host_bridge_dev()
583 static void pci_init_host_bridge(struct pci_host_bridge *bridge)  in pci_init_host_bridge()  argument
585 	INIT_LIST_HEAD(&bridge->windows);  in pci_init_host_bridge()
586 	INIT_LIST_HEAD(&bridge->dma_ranges);  in pci_init_host_bridge()
594 	bridge->native_aer = 1;  in pci_init_host_bridge()
595 	bridge->native_pcie_hotplug = 1;  in pci_init_host_bridge()
596 	bridge->native_shpc_hotplug = 1;  in pci_init_host_bridge()
597 	bridge->native_pme = 1;  in pci_init_host_bridge()
598 	bridge->native_ltr = 1;  in pci_init_host_bridge()
603 	struct pci_host_bridge *bridge;  in pci_alloc_host_bridge()  local
605 	bridge = kzalloc(sizeof(*bridge) + priv, GFP_KERNEL);  in pci_alloc_host_bridge()
606 	if (!bridge)  in pci_alloc_host_bridge()
609 	pci_init_host_bridge(bridge);  in pci_alloc_host_bridge()
610 	bridge->dev.release = pci_release_host_bridge_dev;  in pci_alloc_host_bridge()
612 	return bridge;  in pci_alloc_host_bridge()
619 	struct pci_host_bridge *bridge;  in devm_pci_alloc_host_bridge()  local
621 	bridge = devm_kzalloc(dev, sizeof(*bridge) + priv, GFP_KERNEL);  in devm_pci_alloc_host_bridge()
622 	if (!bridge)  in devm_pci_alloc_host_bridge()
625 	pci_init_host_bridge(bridge);  in devm_pci_alloc_host_bridge()
626 	bridge->dev.release = devm_pci_release_host_bridge_dev;  in devm_pci_alloc_host_bridge()
628 	return bridge;  in devm_pci_alloc_host_bridge()
632 void pci_free_host_bridge(struct pci_host_bridge *bridge)  in pci_free_host_bridge()  argument
634 	pci_free_resource_list(&bridge->windows);  in pci_free_host_bridge()
635 	pci_free_resource_list(&bridge->dma_ranges);  in pci_free_host_bridge()
637 	kfree(bridge);  in pci_free_host_bridge()
718 	struct pci_dev *bridge = bus->self;  in pci_set_bus_speed()  local
721 	pos = pci_find_capability(bridge, PCI_CAP_ID_AGP);  in pci_set_bus_speed()
723 		pos = pci_find_capability(bridge, PCI_CAP_ID_AGP3);  in pci_set_bus_speed()
727 		pci_read_config_dword(bridge, pos + PCI_AGP_STATUS, &agpstat);  in pci_set_bus_speed()
730 		pci_read_config_dword(bridge, pos + PCI_AGP_COMMAND, &agpcmd);  in pci_set_bus_speed()
734 	pos = pci_find_capability(bridge, PCI_CAP_ID_PCIX);  in pci_set_bus_speed()
739 		pci_read_config_word(bridge, pos + PCI_X_BRIDGE_SSTATUS,  in pci_set_bus_speed()
762 	if (pci_is_pcie(bridge)) {  in pci_set_bus_speed()
766 		pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);  in pci_set_bus_speed()
768 		bridge->link_active_reporting = !!(linkcap & PCI_EXP_LNKCAP_DLLLARC);  in pci_set_bus_speed()
770 		pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);  in pci_set_bus_speed()
825 static int pci_register_host_bridge(struct pci_host_bridge *bridge)  in pci_register_host_bridge()  argument
827 	struct device *parent = bridge->dev.parent;  in pci_register_host_bridge()
841 	bridge->bus = bus;  in pci_register_host_bridge()
844 	list_splice_init(&bridge->windows, &resources);  in pci_register_host_bridge()
845 	bus->sysdata = bridge->sysdata;  in pci_register_host_bridge()
846 	bus->msi = bridge->msi;  in pci_register_host_bridge()
847 	bus->ops = bridge->ops;  in pci_register_host_bridge()
848 	bus->number = bus->busn_res.start = bridge->busnr;  in pci_register_host_bridge()
853 	b = pci_find_bus(pci_domain_nr(bus), bridge->busnr);  in pci_register_host_bridge()
861 	dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(bus),  in pci_register_host_bridge()
862 		     bridge->busnr);  in pci_register_host_bridge()
864 	err = pcibios_root_bridge_prepare(bridge);  in pci_register_host_bridge()
868 	err = device_register(&bridge->dev);  in pci_register_host_bridge()
870 		put_device(&bridge->dev);  in pci_register_host_bridge()
872 	bus->bridge = get_device(&bridge->dev);  in pci_register_host_bridge()
873 	device_enable_async_suspend(bus->bridge);  in pci_register_host_bridge()
878 		set_dev_node(bus->bridge, pcibus_to_node(bus));  in pci_register_host_bridge()
881 	bus->dev.parent = bus->bridge;  in pci_register_host_bridge()
902 		list_move_tail(&window->node, &bridge->windows);  in pci_register_host_bridge()
933 	put_device(&bridge->dev);  in pci_register_host_bridge()
934 	device_unregister(&bridge->dev);  in pci_register_host_bridge()
941 static bool pci_bridge_child_ext_cfg_accessible(struct pci_dev *bridge)  in pci_bridge_child_ext_cfg_accessible()  argument
950 	if (bridge->bus->bus_flags & PCI_BUS_FLAGS_NO_EXTCFG)  in pci_bridge_child_ext_cfg_accessible()
958 	if (pci_is_pcie(bridge) &&  in pci_bridge_child_ext_cfg_accessible()
959 	    (pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT ||  in pci_bridge_child_ext_cfg_accessible()
960 	     pci_pcie_type(bridge) == PCI_EXP_TYPE_UPSTREAM ||  in pci_bridge_child_ext_cfg_accessible()
961 	     pci_pcie_type(bridge) == PCI_EXP_TYPE_DOWNSTREAM))  in pci_bridge_child_ext_cfg_accessible()
972 	pos = pci_find_capability(bridge, PCI_CAP_ID_PCIX);  in pci_bridge_child_ext_cfg_accessible()
976 	pci_read_config_dword(bridge, pos + PCI_X_STATUS, &status);  in pci_bridge_child_ext_cfg_accessible()
981 					   struct pci_dev *bridge, int busnr)  in pci_alloc_child_bus()  argument
1010 	if (!bridge) {  in pci_alloc_child_bus()
1011 		child->dev.parent = parent->bridge;  in pci_alloc_child_bus()
1015 	child->self = bridge;  in pci_alloc_child_bus()
1016 	child->bridge = get_device(&bridge->dev);  in pci_alloc_child_bus()
1017 	child->dev.parent = child->bridge;  in pci_alloc_child_bus()
1026 	if (!pci_bridge_child_ext_cfg_accessible(bridge)) {  in pci_alloc_child_bus()
1033 		child->resource[i] = &bridge->resource[PCI_BRIDGE_RESOURCES+i];  in pci_alloc_child_bus()
1036 	bridge->subordinate = child;  in pci_alloc_child_bus()
1726 	dev->dev.parent = dev->bus->bridge;  in pci_setup_device()
1882 	struct pci_dev *bridge = pci_upstream_bridge(dev);  in pci_configure_mps()  local
1885 	if (!pci_is_pcie(dev) || !bridge || !pci_is_pcie(bridge))  in pci_configure_mps()
1893 	p_mps = pcie_get_mps(bridge);  in pci_configure_mps()
1900 			 mps, pci_name(bridge), p_mps);  in pci_configure_mps()
1912 	if (mpss < p_mps && pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT) {  in pci_configure_mps()
1913 		pcie_set_mps(bridge, mpss);  in pci_configure_mps()
1915 			 mpss, p_mps, 128 << bridge->pcie_mpss);  in pci_configure_mps()
1916 		p_mps = pcie_get_mps(bridge);  in pci_configure_mps()
2022 	struct pci_dev *bridge;  in pci_configure_ltr()  local
2039 		bridge = pci_upstream_bridge(dev);  in pci_configure_ltr()
2040 		if (bridge && bridge->ltr_path)  in pci_configure_ltr()
2055 	    ((bridge = pci_upstream_bridge(dev)) &&  in pci_configure_ltr()
2056 	      bridge->ltr_path)) {  in pci_configure_ltr()
2067 	struct pci_dev *bridge;  in pci_configure_eetlp_prefix()  local
2083 		bridge = pci_upstream_bridge(dev);  in pci_configure_eetlp_prefix()
2084 		if (bridge && bridge->eetlp_prefix_path)  in pci_configure_eetlp_prefix()
2236 	struct pci_dev *bridge = bus->self;  in pci_bus_read_dev_vendor_id()  local
2242 	if (bridge && bridge->vendor == PCI_VENDOR_ID_IDT &&  in pci_bus_read_dev_vendor_id()
2243 	    bridge->device == 0x80b5)  in pci_bus_read_dev_vendor_id()
2485 	struct pci_dev *bridge = bus->self;  in only_one_child()  local
2499 	if (bridge && pci_is_pcie(bridge) && pcie_downstream_port(bridge))  in only_one_child()
2882 int __weak pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)  in pcibios_root_bridge_prepare()  argument
2899 	struct pci_host_bridge *bridge;  in pci_create_root_bus()  local
2901 	bridge = pci_alloc_host_bridge(0);  in pci_create_root_bus()
2902 	if (!bridge)  in pci_create_root_bus()
2905 	bridge->dev.parent = parent;  in pci_create_root_bus()
2907 	list_splice_init(resources, &bridge->windows);  in pci_create_root_bus()
2908 	bridge->sysdata = sysdata;  in pci_create_root_bus()
2909 	bridge->busnr = bus;  in pci_create_root_bus()
2910 	bridge->ops = ops;  in pci_create_root_bus()
2912 	error = pci_register_host_bridge(bridge);  in pci_create_root_bus()
2916 	return bridge->bus;  in pci_create_root_bus()
2919 	kfree(bridge);  in pci_create_root_bus()
2924 int pci_host_probe(struct pci_host_bridge *bridge)  in pci_host_probe()  argument
2929 	ret = pci_scan_root_bus_bridge(bridge);  in pci_host_probe()
2931 		dev_err(bridge->dev.parent, "Scanning root bridge failed");  in pci_host_probe()
2935 	bus = bridge->bus;  in pci_host_probe()
3018 int pci_scan_root_bus_bridge(struct pci_host_bridge *bridge)  in pci_scan_root_bus_bridge()  argument
3025 	if (!bridge)  in pci_scan_root_bus_bridge()
3028 	resource_list_for_each_entry(window, &bridge->windows)  in pci_scan_root_bus_bridge()
3034 	ret = pci_register_host_bridge(bridge);  in pci_scan_root_bus_bridge()
3038 	b = bridge->bus;  in pci_scan_root_bus_bridge()
3039 	bus = bridge->busnr;  in pci_scan_root_bus_bridge()
3121 unsigned int pci_rescan_bus_bridge_resize(struct pci_dev *bridge)  in pci_rescan_bus_bridge_resize()  argument
3124 	struct pci_bus *bus = bridge->subordinate;  in pci_rescan_bus_bridge_resize()
3128 	pci_assign_unassigned_bridge_resources(bridge);  in pci_rescan_bus_bridge_resize()