31 	struct cxl_nvdimm_bridge *cxl_nvb = cxl_nvd->bridge;  in unregister_nvdimm()  local
35 	device_lock(&cxl_nvb->dev);  in unregister_nvdimm()
39 		device_unlock(&cxl_nvb->dev);  in unregister_nvdimm()
44 		device_lock(&cxl_nvb->dev);  in unregister_nvdimm()
46 	device_unlock(&cxl_nvb->dev);  in unregister_nvdimm()
58 	struct cxl_nvdimm_bridge *cxl_nvb;  in cxl_nvdimm_probe()  local
62 	cxl_nvb = cxl_find_nvdimm_bridge(dev);  in cxl_nvdimm_probe()
63 	if (!cxl_nvb)  in cxl_nvdimm_probe()
66 	device_lock(&cxl_nvb->dev);  in cxl_nvdimm_probe()
67 	if (!cxl_nvb->nvdimm_bus) {  in cxl_nvdimm_probe()
81 	nvdimm = nvdimm_create(cxl_nvb->nvdimm_bus, cxl_nvd, NULL, flags,  in cxl_nvdimm_probe()
89 	cxl_nvd->bridge = cxl_nvb;  in cxl_nvdimm_probe()
92 	device_unlock(&cxl_nvb->dev);  in cxl_nvdimm_probe()
93 	put_device(&cxl_nvb->dev);  in cxl_nvdimm_probe()
219 static bool online_nvdimm_bus(struct cxl_nvdimm_bridge *cxl_nvb)  in online_nvdimm_bus()  argument
221 	if (cxl_nvb->nvdimm_bus)  in online_nvdimm_bus()
223 	cxl_nvb->nvdimm_bus =  in online_nvdimm_bus()
224 		nvdimm_bus_register(&cxl_nvb->dev, &cxl_nvb->nd_desc);  in online_nvdimm_bus()
225 	return cxl_nvb->nvdimm_bus != NULL;  in online_nvdimm_bus()
228 static int cxl_nvdimm_release_driver(struct device *dev, void *cxl_nvb)  in cxl_nvdimm_release_driver()  argument
236 	if (cxl_nvd->bridge != cxl_nvb)  in cxl_nvdimm_release_driver()
243 static int cxl_pmem_region_release_driver(struct device *dev, void *cxl_nvb)  in cxl_pmem_region_release_driver()  argument
251 	if (cxlr_pmem->bridge != cxl_nvb)  in cxl_pmem_region_release_driver()
258 static void offline_nvdimm_bus(struct cxl_nvdimm_bridge *cxl_nvb,  in offline_nvdimm_bus()  argument
269 	bus_for_each_dev(&cxl_bus_type, NULL, cxl_nvb,  in offline_nvdimm_bus()
271 	bus_for_each_dev(&cxl_bus_type, NULL, cxl_nvb,  in offline_nvdimm_bus()
278 	struct cxl_nvdimm_bridge *cxl_nvb =  in cxl_nvb_update_state()  local
279 		container_of(work, typeof(*cxl_nvb), state_work);  in cxl_nvb_update_state()
283 	device_lock(&cxl_nvb->dev);  in cxl_nvb_update_state()
284 	switch (cxl_nvb->state) {  in cxl_nvb_update_state()
286 		if (!online_nvdimm_bus(cxl_nvb)) {  in cxl_nvb_update_state()
287 			dev_err(&cxl_nvb->dev,  in cxl_nvb_update_state()
295 		victim_bus = cxl_nvb->nvdimm_bus;  in cxl_nvb_update_state()
296 		cxl_nvb->nvdimm_bus = NULL;  in cxl_nvb_update_state()
301 	device_unlock(&cxl_nvb->dev);  in cxl_nvb_update_state()
304 		device_release_driver(&cxl_nvb->dev);  in cxl_nvb_update_state()
308 		dev_dbg(&cxl_nvb->dev, "rescan: %d\n", rc);  in cxl_nvb_update_state()
310 	offline_nvdimm_bus(cxl_nvb, victim_bus);  in cxl_nvb_update_state()
312 	put_device(&cxl_nvb->dev);  in cxl_nvb_update_state()
315 static void cxl_nvdimm_bridge_state_work(struct cxl_nvdimm_bridge *cxl_nvb)  in cxl_nvdimm_bridge_state_work()  argument
321 	get_device(&cxl_nvb->dev);  in cxl_nvdimm_bridge_state_work()
322 	if (!queue_work(cxl_pmem_wq, &cxl_nvb->state_work))  in cxl_nvdimm_bridge_state_work()
323 		put_device(&cxl_nvb->dev);  in cxl_nvdimm_bridge_state_work()
328 	struct cxl_nvdimm_bridge *cxl_nvb = to_cxl_nvdimm_bridge(dev);  in cxl_nvdimm_bridge_remove()  local
330 	if (cxl_nvb->state == CXL_NVB_ONLINE)  in cxl_nvdimm_bridge_remove()
331 		cxl_nvb->state = CXL_NVB_OFFLINE;  in cxl_nvdimm_bridge_remove()
332 	cxl_nvdimm_bridge_state_work(cxl_nvb);  in cxl_nvdimm_bridge_remove()
337 	struct cxl_nvdimm_bridge *cxl_nvb = to_cxl_nvdimm_bridge(dev);  in cxl_nvdimm_bridge_probe()  local
339 	if (cxl_nvb->state == CXL_NVB_DEAD)  in cxl_nvdimm_bridge_probe()
342 	if (cxl_nvb->state == CXL_NVB_NEW) {  in cxl_nvdimm_bridge_probe()
343 		cxl_nvb->nd_desc = (struct nvdimm_bus_descriptor) {  in cxl_nvdimm_bridge_probe()
349 		INIT_WORK(&cxl_nvb->state_work, cxl_nvb_update_state);  in cxl_nvdimm_bridge_probe()
352 	cxl_nvb->state = CXL_NVB_ONLINE;  in cxl_nvdimm_bridge_probe()
353 	cxl_nvdimm_bridge_state_work(cxl_nvb);  in cxl_nvdimm_bridge_probe()
405 	struct cxl_nvdimm_bridge *cxl_nvb = cxlr_pmem->bridge;  in release_mappings()  local
407 	device_lock(&cxl_nvb->dev);  in release_mappings()
414 	device_unlock(&cxl_nvb->dev);  in release_mappings()
433 	struct cxl_nvdimm_bridge *cxl_nvb;  in cxl_pmem_region_probe()  local
441 	cxl_nvb = cxl_find_nvdimm_bridge(&cxlr_pmem->mapping[0].cxlmd->dev);  in cxl_pmem_region_probe()
442 	if (!cxl_nvb) {  in cxl_pmem_region_probe()
446 	cxlr_pmem->bridge = cxl_nvb;  in cxl_pmem_region_probe()
448 	device_lock(&cxl_nvb->dev);  in cxl_pmem_region_probe()
449 	if (!cxl_nvb->nvdimm_bus) {  in cxl_pmem_region_probe()
565 		nvdimm_pmem_region_create(cxl_nvb->nvdimm_bus, &ndr_desc);  in cxl_pmem_region_probe()
576 	device_unlock(&cxl_nvb->dev);  in cxl_pmem_region_probe()
577 	put_device(&cxl_nvb->dev);  in cxl_pmem_region_probe()
594 	struct cxl_nvdimm_bridge *cxl_nvb;  in cxl_nvdimm_bridge_reset()  local
599 	cxl_nvb = to_cxl_nvdimm_bridge(dev);  in cxl_nvdimm_bridge_reset()
601 	cxl_nvb->state = CXL_NVB_NEW;  in cxl_nvdimm_bridge_reset()