Lines Matching full:bridge
22 * when the bridge is scanned and it loses a refcount when the bridge
24 * - When a P2P bridge is present, we elevate the refcount on the subordinate
105 WARN_ON(context->bridge); in acpiphp_put_context()
110 static inline void get_bridge(struct acpiphp_bridge *bridge) in get_bridge() argument
112 kref_get(&bridge->ref); in get_bridge()
115 static inline void put_bridge(struct acpiphp_bridge *bridge) in put_bridge() argument
117 kref_put(&bridge->ref, free_bridge); in put_bridge()
152 struct acpiphp_bridge *bridge; in free_bridge() local
158 bridge = container_of(kref, struct acpiphp_bridge, ref); in free_bridge()
160 list_for_each_entry_safe(slot, next, &bridge->slots, node) { in free_bridge()
167 context = bridge->context; in free_bridge()
172 context->bridge = NULL; in free_bridge()
176 put_device(&bridge->pci_bus->dev); in free_bridge()
177 pci_dev_put(bridge->pci_dev); in free_bridge()
178 kfree(bridge); in free_bridge()
203 * secondary bridge on slot in acpiphp_post_dock_fixup()
223 * @data: The object's parent ACPIPHP bridge.
230 struct acpiphp_bridge *bridge = data; in acpiphp_add_context() local
237 struct pci_bus *pbus = bridge->pci_bus; in acpiphp_add_context()
238 struct pci_dev *pdev = bridge->pci_dev; in acpiphp_add_context()
264 newfunc->parent = bridge; in acpiphp_add_context()
278 list_for_each_entry(slot, &bridge->slots, node) in acpiphp_add_context()
290 slot->bus = bridge->pci_bus; in acpiphp_add_context()
294 list_add_tail(&slot->node, &bridge->slots); in acpiphp_add_context()
308 bridge->nr_slots++; in acpiphp_add_context()
311 sun = bridge->nr_slots; in acpiphp_add_context()
319 bridge->nr_slots--; in acpiphp_add_context()
339 static void cleanup_bridge(struct acpiphp_bridge *bridge) in cleanup_bridge() argument
344 list_for_each_entry(slot, &bridge->slots, node) { in cleanup_bridge()
359 list_del(&bridge->list); in cleanup_bridge()
363 bridge->is_going_away = true; in cleanup_bridge()
444 static void acpiphp_native_scan_bridge(struct pci_dev *bridge) in acpiphp_native_scan_bridge() argument
446 struct pci_bus *bus = bridge->subordinate; in acpiphp_native_scan_bridge()
477 * @bridge: true if enable is for the whole bridge (not a single slot)
482 static void enable_slot(struct acpiphp_slot *slot, bool bridge) in enable_slot() argument
488 if (bridge && bus->self && hotplug_is_native(bus->self)) { in enable_slot()
684 /* The device is a bridge. so check the bus below it. */ in trim_stale_devices()
695 * @bridge: where to begin re-enumeration
697 * Iterate over all slots under this bridge and make sure that if a
700 static void acpiphp_check_bridge(struct acpiphp_bridge *bridge) in acpiphp_check_bridge() argument
704 /* Bail out if the bridge is going away. */ in acpiphp_check_bridge()
705 if (bridge->is_going_away) in acpiphp_check_bridge()
708 if (bridge->pci_dev) in acpiphp_check_bridge()
709 pm_runtime_get_sync(&bridge->pci_dev->dev); in acpiphp_check_bridge()
711 list_for_each_entry(slot, &bridge->slots, node) { in acpiphp_check_bridge()
731 if (bridge->pci_dev) in acpiphp_check_bridge()
732 pm_runtime_put(&bridge->pci_dev->dev); in acpiphp_check_bridge()
765 struct acpiphp_bridge *bridge = NULL; in acpiphp_check_host_bridge() local
769 bridge = to_acpiphp_root_context(adev->hp)->root_bridge; in acpiphp_check_host_bridge()
770 if (bridge) in acpiphp_check_host_bridge()
771 get_bridge(bridge); in acpiphp_check_host_bridge()
774 if (bridge) { in acpiphp_check_host_bridge()
777 acpiphp_check_bridge(bridge); in acpiphp_check_host_bridge()
780 put_bridge(bridge); in acpiphp_check_host_bridge()
791 struct acpiphp_bridge *bridge; in hotplug_event() local
794 bridge = context->bridge; in hotplug_event()
795 if (bridge) in hotplug_event()
796 get_bridge(bridge); in hotplug_event()
806 if (bridge) in hotplug_event()
807 acpiphp_check_bridge(bridge); in hotplug_event()
816 if (bridge) { in hotplug_event()
817 acpiphp_check_bridge(bridge); in hotplug_event()
836 if (bridge) in hotplug_event()
837 put_bridge(bridge); in hotplug_event()
862 struct acpiphp_bridge *bridge; in acpiphp_enumerate_slots() local
870 adev = ACPI_COMPANION(bus->bridge); in acpiphp_enumerate_slots()
875 bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL); in acpiphp_enumerate_slots()
876 if (!bridge) in acpiphp_enumerate_slots()
879 INIT_LIST_HEAD(&bridge->slots); in acpiphp_enumerate_slots()
880 kref_init(&bridge->ref); in acpiphp_enumerate_slots()
881 bridge->pci_dev = pci_dev_get(bus->self); in acpiphp_enumerate_slots()
882 bridge->pci_bus = bus; in acpiphp_enumerate_slots()
892 if (pci_is_root_bus(bridge->pci_bus)) { in acpiphp_enumerate_slots()
899 root_context->root_bridge = bridge; in acpiphp_enumerate_slots()
905 * This bridge should have been registered as a hotplug function in acpiphp_enumerate_slots()
908 * bridge is not interesting to us either. in acpiphp_enumerate_slots()
914 bridge->context = context; in acpiphp_enumerate_slots()
915 context->bridge = bridge; in acpiphp_enumerate_slots()
916 /* Get a reference to the parent bridge. */ in acpiphp_enumerate_slots()
923 list_add(&bridge->list, &bridge_list); in acpiphp_enumerate_slots()
926 /* register all slot objects under this bridge */ in acpiphp_enumerate_slots()
928 acpiphp_add_context, NULL, bridge, NULL); in acpiphp_enumerate_slots()
931 cleanup_bridge(bridge); in acpiphp_enumerate_slots()
932 put_bridge(bridge); in acpiphp_enumerate_slots()
939 pci_dev_put(bridge->pci_dev); in acpiphp_enumerate_slots()
940 kfree(bridge); in acpiphp_enumerate_slots()
943 static void acpiphp_drop_bridge(struct acpiphp_bridge *bridge) in acpiphp_drop_bridge() argument
945 if (pci_is_root_bus(bridge->pci_bus)) { in acpiphp_drop_bridge()
950 adev = ACPI_COMPANION(bridge->pci_bus->bridge); in acpiphp_drop_bridge()
956 cleanup_bridge(bridge); in acpiphp_drop_bridge()
957 put_bridge(bridge); in acpiphp_drop_bridge()
966 struct acpiphp_bridge *bridge; in acpiphp_remove_slots() local
972 list_for_each_entry(bridge, &bridge_list, list) in acpiphp_remove_slots()
973 if (bridge->pci_bus == bus) { in acpiphp_remove_slots()
975 acpiphp_drop_bridge(bridge); in acpiphp_remove_slots()