111 unsigned char pci_bus_max_busnr(struct pci_bus *bus)  in pci_bus_max_busnr()  argument
116 	max = bus->busn_res.end;  in pci_bus_max_busnr()
117 	list_for_each_entry(tmp, &bus->children, node) {  in pci_bus_max_busnr()
145 static int __pci_find_next_cap_ttl(struct pci_bus *bus, unsigned int devfn,  in __pci_find_next_cap_ttl()  argument
151 	pci_bus_read_config_byte(bus, devfn, pos, &pos);  in __pci_find_next_cap_ttl()
157 		pci_bus_read_config_word(bus, devfn, pos, &ent);  in __pci_find_next_cap_ttl()
169 static int __pci_find_next_cap(struct pci_bus *bus, unsigned int devfn,  in __pci_find_next_cap()  argument
174 	return __pci_find_next_cap_ttl(bus, devfn, pos, cap, &ttl);  in __pci_find_next_cap()
179 	return __pci_find_next_cap(dev->bus, dev->devfn,  in pci_find_next_capability()
184 static int __pci_bus_find_cap_start(struct pci_bus *bus,  in __pci_bus_find_cap_start()  argument
189 	pci_bus_read_config_word(bus, devfn, PCI_STATUS, &status);  in __pci_bus_find_cap_start()
229 	pos = __pci_bus_find_cap_start(dev->bus, dev->devfn, dev->hdr_type);  in pci_find_capability()
231 		pos = __pci_find_next_cap(dev->bus, dev->devfn, pos, cap);  in pci_find_capability()
250 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)  in pci_bus_find_capability()  argument
255 	pci_bus_read_config_byte(bus, devfn, PCI_HEADER_TYPE, &hdr_type);  in pci_bus_find_capability()
257 	pos = __pci_bus_find_cap_start(bus, devfn, hdr_type & 0x7f);  in pci_bus_find_capability()
259 		pos = __pci_find_next_cap(bus, devfn, pos, cap);  in pci_bus_find_capability()
347 	pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, pos,  in __pci_find_next_ht_cap()
357 		pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn,  in __pci_find_next_ht_cap()
398 	pos = __pci_bus_find_cap_start(dev->bus, dev->devfn, dev->hdr_type);  in pci_find_ht_capability()
417 	const struct pci_bus *bus = dev->bus;  in pci_find_parent_resource()  local
421 	pci_bus_for_each_resource(bus, r, i) {  in pci_find_parent_resource()
636 	if (dev->bus->self)  in pci_raw_set_power_state()
637 		pcie_aspm_pm_state_change(dev->bus->self);  in pci_raw_set_power_state()
721 static void pci_wakeup_bus(struct pci_bus *bus)  in pci_wakeup_bus()  argument
723 	if (bus)  in pci_wakeup_bus()
724 		pci_walk_bus(bus, pci_wakeup, NULL);  in pci_wakeup_bus()
774 static void __pci_bus_set_current_state(struct pci_bus *bus, pci_power_t state)  in __pci_bus_set_current_state()  argument
776 	if (bus)  in __pci_bus_set_current_state()
777 		pci_walk_bus(bus, __pci_dev_set_current_state, &state);  in __pci_bus_set_current_state()
1649 void pci_pme_wakeup_bus(struct pci_bus *bus)  in pci_pme_wakeup_bus()  argument
1651 	if (bus)  in pci_pme_wakeup_bus()
1652 		pci_walk_bus(bus, pci_pme_wakeup, (void *)true);  in pci_pme_wakeup_bus()
1679 			bridge = pme_dev->dev->bus->self;  in pci_pme_list_scan()
1988 	struct pci_bus *bus = dev->bus;  in pci_dev_run_wake()  local
1996 	while (bus->parent) {  in pci_dev_run_wake()
1997 		struct pci_dev *bridge = bus->self;  in pci_dev_run_wake()
2002 		bus = bus->parent;  in pci_dev_run_wake()
2006 	if (bus->bridge)  in pci_dev_run_wake()
2007 		return device_run_wake(bus->bridge);  in pci_dev_run_wake()
2233 	bridge = dev->bus->self;  in pci_configure_ari()
2432 		if (pci_is_root_bus(pdev->bus))  in pci_acs_path_enabled()
2435 		parent = pdev->bus->self;  in pci_acs_path_enabled()
2456 	if (pci_ari_enabled(dev->bus))  in pci_swizzle_interrupt_pin()
2472 	while (!pci_is_root_bus(dev->bus)) {  in pci_get_interrupt_pin()
2474 		dev = dev->bus->self;  in pci_get_interrupt_pin()
2492 	while (!pci_is_root_bus(dev->bus)) {  in pci_common_swizzle()
2494 		dev = dev->bus->self;  in pci_common_swizzle()
3033 	struct pci_bus *bus = dev->bus;  in pci_check_and_set_intx_mask()  local
3049 	bus->ops->read(bus, dev->devfn, PCI_COMMAND, 4, &cmd_status_dword);  in pci_check_and_set_intx_mask()
3068 		bus->ops->write(bus, dev->devfn, PCI_COMMAND, 2, newcmd);  in pci_check_and_set_intx_mask()
3307 	if (pci_is_root_bus(dev->bus) || dev->subordinate ||  in pci_parent_bus_reset()
3308 	    !dev->bus->self || dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET)  in pci_parent_bus_reset()
3311 	list_for_each_entry(pdev, &dev->bus->devices, bus_list)  in pci_parent_bus_reset()
3318 	pci_reset_bridge_secondary_bus(dev->bus->self);  in pci_parent_bus_reset()
3346 	list_for_each_entry(pdev, &dev->bus->devices, bus_list)  in pci_dev_reset_slot_function()
3596 static bool pci_bus_resetable(struct pci_bus *bus)  in pci_bus_resetable()  argument
3600 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_resetable()
3610 static void pci_bus_lock(struct pci_bus *bus)  in pci_bus_lock()  argument
3614 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_lock()
3622 static void pci_bus_unlock(struct pci_bus *bus)  in pci_bus_unlock()  argument
3626 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_unlock()
3634 static int pci_bus_trylock(struct pci_bus *bus)  in pci_bus_trylock()  argument
3638 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_trylock()
3651 	list_for_each_entry_continue_reverse(dev, &bus->devices, bus_list) {  in pci_bus_trylock()
3664 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_resetable()
3680 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_lock()
3694 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_unlock()
3708 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_trylock()
3724 					     &slot->bus->devices, bus_list) {  in pci_slot_trylock()
3735 static void pci_bus_save_and_disable(struct pci_bus *bus)  in pci_bus_save_and_disable()  argument
3739 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_save_and_disable()
3750 static void pci_bus_restore(struct pci_bus *bus)  in pci_bus_restore()  argument
3754 	list_for_each_entry(dev, &bus->devices, bus_list) {  in pci_bus_restore()
3766 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_save_and_disable()
3783 	list_for_each_entry(dev, &slot->bus->devices, bus_list) {  in pci_slot_restore()
3886 static int pci_bus_reset(struct pci_bus *bus, int probe)  in pci_bus_reset()  argument
3888 	if (!bus->self || !pci_bus_resetable(bus))  in pci_bus_reset()
3894 	pci_bus_lock(bus);  in pci_bus_reset()
3898 	pci_reset_bridge_secondary_bus(bus->self);  in pci_bus_reset()
3900 	pci_bus_unlock(bus);  in pci_bus_reset()
3911 int pci_probe_reset_bus(struct pci_bus *bus)  in pci_probe_reset_bus()  argument
3913 	return pci_bus_reset(bus, 1);  in pci_probe_reset_bus()
3926 int pci_reset_bus(struct pci_bus *bus)  in pci_reset_bus()  argument
3930 	rc = pci_bus_reset(bus, 1);  in pci_reset_bus()
3934 	pci_bus_save_and_disable(bus);  in pci_reset_bus()
3936 	rc = pci_bus_reset(bus, 0);  in pci_reset_bus()
3938 	pci_bus_restore(bus);  in pci_reset_bus()
3950 int pci_try_reset_bus(struct pci_bus *bus)  in pci_try_reset_bus()  argument
3954 	rc = pci_bus_reset(bus, 1);  in pci_try_reset_bus()
3958 	pci_bus_save_and_disable(bus);  in pci_try_reset_bus()
3960 	if (pci_bus_trylock(bus)) {  in pci_try_reset_bus()
3962 		pci_reset_bridge_secondary_bus(bus->self);  in pci_try_reset_bus()
3963 		pci_bus_unlock(bus);  in pci_try_reset_bus()
3967 	pci_bus_restore(bus);  in pci_try_reset_bus()
4054 		if (v > o && (dev->bus->bus_flags & PCI_BUS_FLAGS_NO_MMRBC))  in pcix_set_mmrbc()
4195 		dev = dev->bus->self;  in pcie_get_minimum_link()
4277 	struct pci_bus *bus;  in pci_set_vga_state()  local
4301 	bus = dev->bus;  in pci_set_vga_state()
4302 	while (bus) {  in pci_set_vga_state()
4303 		bridge = bus->self;  in pci_set_vga_state()
4314 		bus = bus->parent;  in pci_set_vga_state()
4323 	return pci_bus_read_dev_vendor_id(pdev->bus, pdev->devfn, &v, 0);  in pci_device_is_present()
4329 	struct pci_dev *bridge = dev->bus->self;  in pci_ignore_hotplug()
4351 	int seg, bus, slot, func, align_order, count;  in pci_specified_resource_alignment()  local
4366 			&seg, &bus, &slot, &func, &count) != 4) {  in pci_specified_resource_alignment()
4369 					&bus, &slot, &func, &count) != 3) {  in pci_specified_resource_alignment()
4377 		if (seg == pci_domain_nr(dev->bus) &&  in pci_specified_resource_alignment()
4378 			bus == dev->bus->number &&  in pci_specified_resource_alignment()
4483 static ssize_t pci_resource_alignment_show(struct bus_type *bus, char *buf)  in pci_resource_alignment_show()  argument
4488 static ssize_t pci_resource_alignment_store(struct bus_type *bus,  in pci_resource_alignment_store()  argument
4520 void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)  in pci_bus_assign_domain_nr()  argument
4562 	bus->domain_nr = domain;  in pci_bus_assign_domain_nr()
4579 void __weak pci_fixup_cardbus(struct pci_bus *bus)  in pci_fixup_cardbus()  argument