drivers/nvdimm/dimm_devs.c

27 	struct nvdimm *nvdimm = to_nvdimm(dev);
29 	if (!nvdimm->cmd_mask ||
30 	    !test_bit(ND_CMD_GET_CONFIG_DATA, &nvdimm->cmd_mask)) {
31 		if (test_bit(NDD_LABELING, &nvdimm->flags))
176 	struct nvdimm *nvdimm = to_nvdimm(dev);
178 	set_bit(NDD_LABELING, &nvdimm->flags);
183 	struct nvdimm *nvdimm = to_nvdimm(dev);
185 	set_bit(NDD_LOCKED, &nvdimm->flags);
190 	struct nvdimm *nvdimm = to_nvdimm(dev);
192 	clear_bit(NDD_LOCKED, &nvdimm->flags);
197 	struct nvdimm *nvdimm = to_nvdimm(dev);
199 	ida_free(&dimm_ida, nvdimm->id);
200 	kfree(nvdimm);
203 struct nvdimm *to_nvdimm(struct device *dev)
205 	struct nvdimm *nvdimm = container_of(dev, struct nvdimm, dev);
208 	return nvdimm;
214 	struct nvdimm *nvdimm = nd_mapping->nvdimm;
216 	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm->dev));
218 	return dev_get_drvdata(&nvdimm->dev);
250 const char *nvdimm_name(struct nvdimm *nvdimm)
252 	return dev_name(&nvdimm->dev);
256 struct kobject *nvdimm_kobj(struct nvdimm *nvdimm)
258 	return &nvdimm->dev.kobj;
262 unsigned long nvdimm_cmd_mask(struct nvdimm *nvdimm)
264 	return nvdimm->cmd_mask;
268 void *nvdimm_provider_data(struct nvdimm *nvdimm)
270 	if (nvdimm)
271 		return nvdimm->provider_data;
279 	struct nvdimm *nvdimm = to_nvdimm(dev);
282 	if (!nvdimm->cmd_mask)
285 	for_each_set_bit(cmd, &nvdimm->cmd_mask, BITS_PER_LONG)
295 	struct nvdimm *nvdimm = to_nvdimm(dev);
298 			test_bit(NDD_LABELING, &nvdimm->flags) ? "label " : "",
299 			test_bit(NDD_LOCKED, &nvdimm->flags) ? "lock " : "");
306 	struct nvdimm *nvdimm = to_nvdimm(dev);
314 	return sprintf(buf, "%s\n", atomic_read(&nvdimm->busy)
357 	struct nvdimm *nvdimm = to_nvdimm(dev);
364 		nvdimm->sec.flags = nvdimm_security_flags(nvdimm, NVDIMM_USER);
366 	if (test_bit(NVDIMM_SECURITY_OVERWRITE, &nvdimm->sec.flags))
368 	if (test_bit(NVDIMM_SECURITY_DISABLED, &nvdimm->sec.flags))
370 	if (test_bit(NVDIMM_SECURITY_UNLOCKED, &nvdimm->sec.flags))
372 	if (test_bit(NVDIMM_SECURITY_LOCKED, &nvdimm->sec.flags))
380 	struct nvdimm *nvdimm = to_nvdimm(dev);
383 				&nvdimm->sec.flags));
422 	struct nvdimm *nvdimm = to_nvdimm(dev);
426 	if (!nvdimm->sec.flags)
431 		if (nvdimm->sec.ops->freeze || nvdimm->sec.ops->disable
432 				|| nvdimm->sec.ops->change_key
433 				|| nvdimm->sec.ops->erase
434 				|| nvdimm->sec.ops->overwrite)
439 	if (nvdimm->sec.ops->freeze)
451 	struct nvdimm *nvdimm = to_nvdimm(dev);
454 	if (!nvdimm->fw_ops)
458 	result = nvdimm->fw_ops->activate_result(nvdimm);
480 	struct nvdimm *nvdimm = to_nvdimm(dev);
483 	if (!nvdimm->fw_ops)
487 	state = nvdimm->fw_ops->activate_state(nvdimm);
505 	struct nvdimm *nvdimm = to_nvdimm(dev);
509 	if (!nvdimm->fw_ops)
520 	rc = nvdimm->fw_ops->arm(nvdimm, arg);
540 	struct nvdimm *nvdimm = to_nvdimm(dev);
545 	if (!nvdimm->fw_ops)
572 	.name = "nvdimm",
584 struct nvdimm *__nvdimm_create(struct nvdimm_bus *nvdimm_bus,
591 	struct nvdimm *nvdimm = kzalloc(sizeof(*nvdimm), GFP_KERNEL);
594 	if (!nvdimm)
597 	nvdimm->id = ida_alloc(&dimm_ida, GFP_KERNEL);
598 	if (nvdimm->id < 0) {
599 		kfree(nvdimm);
603 	nvdimm->dimm_id = dimm_id;
604 	nvdimm->provider_data = provider_data;
605 	nvdimm->flags = flags;
606 	nvdimm->cmd_mask = cmd_mask;
607 	nvdimm->num_flush = num_flush;
608 	nvdimm->flush_wpq = flush_wpq;
609 	atomic_set(&nvdimm->busy, 0);
610 	dev = &nvdimm->dev;
611 	dev_set_name(dev, "nmem%d", nvdimm->id);
614 	dev->devt = MKDEV(nvdimm_major, nvdimm->id);
616 	nvdimm->sec.ops = sec_ops;
617 	nvdimm->fw_ops = fw_ops;
618 	nvdimm->sec.overwrite_tmo = 0;
619 	INIT_DELAYED_WORK(&nvdimm->dwork, nvdimm_security_overwrite_query);
625 	nvdimm->sec.flags = nvdimm_security_flags(nvdimm, NVDIMM_USER);
626 	nvdimm->sec.ext_flags = nvdimm_security_flags(nvdimm, NVDIMM_MASTER);
634 	return nvdimm;
638 void nvdimm_delete(struct nvdimm *nvdimm)
640 	struct device *dev = &nvdimm->dev;
645 	set_bit(NVDIMM_SECURITY_FROZEN, &nvdimm->sec.flags);
646 	if (test_and_clear_bit(NDD_WORK_PENDING, &nvdimm->flags))
649 	cancel_delayed_work_sync(&nvdimm->dwork);
658 	struct nvdimm *nvdimm = data;
660 	sysfs_put(nvdimm->sec.overwrite_state);
665 	struct nvdimm *nvdimm = to_nvdimm(dev);
667 	if (!nvdimm->sec.flags || !nvdimm->sec.ops
668 			|| !nvdimm->sec.ops->overwrite)
670 	nvdimm->sec.overwrite_state = sysfs_get_dirent(dev->kobj.sd, "security");
671 	if (!nvdimm->sec.overwrite_state)
674 	return devm_add_action_or_reset(dev, shutdown_security_notify, nvdimm);
678 int nvdimm_in_overwrite(struct nvdimm *nvdimm)
680 	return test_bit(NDD_SECURITY_OVERWRITE, &nvdimm->flags);
684 int nvdimm_security_freeze(struct nvdimm *nvdimm)
688 	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm->dev));
690 	if (!nvdimm->sec.ops || !nvdimm->sec.ops->freeze)
693 	if (!nvdimm->sec.flags)
696 	if (test_bit(NDD_SECURITY_OVERWRITE, &nvdimm->flags)) {
697 		dev_warn(&nvdimm->dev, "Overwrite operation in progress.\n");
701 	rc = nvdimm->sec.ops->freeze(nvdimm);
702 	nvdimm->sec.flags = nvdimm_security_flags(nvdimm, NVDIMM_USER);
749 	if (__reserve_free_pmem(&nd_region->dev, nd_mapping->nvdimm))