41 static int zpci_bus_scan(struct zpci_bus *zbus, int domain, struct pci_ops *ops)  in zpci_bus_scan()  argument
49 	zbus->domain_nr = rc;  in zpci_bus_scan()
51 	bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, ops, zbus, &zbus->resources);  in zpci_bus_scan()
53 		zpci_free_domain(zbus->domain_nr);  in zpci_bus_scan()
57 	zbus->bus = bus;  in zpci_bus_scan()
64 	struct zpci_bus *zbus = container_of(kref, struct zpci_bus, kref);  in zpci_bus_release()  local
66 	if (zbus->bus) {  in zpci_bus_release()
68 		pci_stop_root_bus(zbus->bus);  in zpci_bus_release()
70 		zpci_free_domain(zbus->domain_nr);  in zpci_bus_release()
71 		pci_free_resource_list(&zbus->resources);  in zpci_bus_release()
73 		pci_remove_root_bus(zbus->bus);  in zpci_bus_release()
78 	list_del(&zbus->bus_next);  in zpci_bus_release()
80 	kfree(zbus);  in zpci_bus_release()
83 static void zpci_bus_put(struct zpci_bus *zbus)  in zpci_bus_put()  argument
85 	kref_put(&zbus->kref, zpci_bus_release);  in zpci_bus_put()
90 	struct zpci_bus *zbus;  in zpci_bus_get()  local
93 	list_for_each_entry(zbus, &zbus_list, bus_next) {  in zpci_bus_get()
94 		if (pchid == zbus->pchid) {  in zpci_bus_get()
95 			kref_get(&zbus->kref);  in zpci_bus_get()
99 	zbus = NULL;  in zpci_bus_get()
102 	return zbus;  in zpci_bus_get()
107 	struct zpci_bus *zbus;  in zpci_bus_alloc()  local
109 	zbus = kzalloc(sizeof(*zbus), GFP_KERNEL);  in zpci_bus_alloc()
110 	if (!zbus)  in zpci_bus_alloc()
113 	zbus->pchid = pchid;  in zpci_bus_alloc()
114 	INIT_LIST_HEAD(&zbus->bus_next);  in zpci_bus_alloc()
116 	list_add_tail(&zbus->bus_next, &zbus_list);  in zpci_bus_alloc()
119 	kref_init(&zbus->kref);  in zpci_bus_alloc()
120 	INIT_LIST_HEAD(&zbus->resources);  in zpci_bus_alloc()
122 	zbus->bus_resource.start = 0;  in zpci_bus_alloc()
123 	zbus->bus_resource.end = ZPCI_BUS_NR;  in zpci_bus_alloc()
124 	zbus->bus_resource.flags = IORESOURCE_BUS;  in zpci_bus_alloc()
125 	pci_add_resource(&zbus->resources, &zbus->bus_resource);  in zpci_bus_alloc()
127 	return zbus;  in zpci_bus_alloc()
139 		zpci_iov_setup_virtfn(zdev->zbus, pdev, zdev->vfn);  in pcibios_bus_add_device()
144 static int zpci_bus_add_device(struct zpci_bus *zbus, struct zpci_dev *zdev)  in zpci_bus_add_device()  argument
152 	bus = zbus->bus;  in zpci_bus_add_device()
168 	resource_list_for_each_entry_safe(window, n, &zbus->resources) {  in zpci_bus_add_device()
180 static void zpci_bus_add_devices(struct zpci_bus *zbus)  in zpci_bus_add_devices()  argument
185 		if (zbus->function[i])  in zpci_bus_add_devices()
186 			zpci_bus_add_device(zbus, zbus->function[i]);  in zpci_bus_add_devices()
189 	pci_bus_add_devices(zbus->bus);  in zpci_bus_add_devices()
195 	struct zpci_bus *zbus = NULL;  in zpci_bus_device_register()  local
209 		zbus = zpci_bus_get(zdev->pchid);  in zpci_bus_device_register()
211 	if (!zbus) {  in zpci_bus_device_register()
212 		zbus = zpci_bus_alloc(zdev->pchid);  in zpci_bus_device_register()
213 		if (!zbus)  in zpci_bus_device_register()
217 	zdev->zbus = zbus;  in zpci_bus_device_register()
218 	if (zbus->function[zdev->devfn]) {  in zpci_bus_device_register()
222 	zbus->function[zdev->devfn] = zdev;  in zpci_bus_device_register()
224 	zpci_setup_bus_resources(zdev, &zbus->resources);  in zpci_bus_device_register()
226 	if (zbus->bus) {  in zpci_bus_device_register()
227 		if (!zbus->multifunction) {  in zpci_bus_device_register()
235 		rc = zpci_bus_add_device(zbus, zdev);  in zpci_bus_device_register()
239 		if (zbus->multifunction && !zdev->rid_available) {  in zpci_bus_device_register()
243 		rc = zpci_bus_scan(zbus, (u16)zdev->uid, ops);  in zpci_bus_device_register()
246 		zpci_bus_add_devices(zbus);  in zpci_bus_device_register()
251 		zbus->multifunction = zdev->rid_available;  in zpci_bus_device_register()
252 		zbus->max_bus_speed = zdev->max_bus_speed;  in zpci_bus_device_register()
254 		zbus->multifunction = 1;  in zpci_bus_device_register()
261 	zbus->function[zdev->devfn] = NULL;  in zpci_bus_device_register()
264 	zpci_bus_put(zbus);  in zpci_bus_device_register()
270 	struct zpci_bus *zbus = zdev->zbus;  in zpci_bus_device_unregister()  local
273 	zbus->function[zdev->devfn] = NULL;  in zpci_bus_device_unregister()
274 	zpci_bus_put(zbus);  in zpci_bus_device_unregister()