26 	struct nd_region *nd_region = to_nd_region(dev->parent);  in namespace_pmem_release()  local
29 		ida_simple_remove(&nd_region->ns_ida, nspm->id);  in namespace_pmem_release()
89 	struct nd_region *nd_region = to_nd_region(dev->parent);  in pmem_should_map_pages()  local
96 	if (!test_bit(ND_REGION_PAGEMAP, &nd_region->flags))  in pmem_should_map_pages()
141 	struct nd_region *nd_region = to_nd_region(ndns->dev.parent);  in nvdimm_namespace_disk_name()  local
158 			sprintf(name, "pmem%d.%d%s", nd_region->id, nsidx,  in nvdimm_namespace_disk_name()
161 			sprintf(name, "pmem%d%s", nd_region->id,  in nvdimm_namespace_disk_name()
185 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nstype_show()  local
187 	return sprintf(buf, "%d\n", nd_region_to_nstype(nd_region));  in nstype_show()
232 static int nd_namespace_label_update(struct nd_region *nd_region,  in nd_namespace_label_update()  argument
253 		return nd_pmem_namespace_label_update(nd_region, nspm, size);  in nd_namespace_label_update()
261 	struct nd_region *nd_region = to_nd_region(dev->parent);  in alt_name_store()  local
269 		rc = nd_namespace_label_update(nd_region, dev);  in alt_name_store()
293 static int scan_free(struct nd_region *nd_region,  in scan_free()  argument
313 			nd_dbg_dpa(nd_region, ndd, res, "delete %d\n", rc);  in scan_free()
322 		nd_dbg_dpa(nd_region, ndd, res, "shrink %d\n", rc);  in scan_free()
340 static int shrink_dpa_allocation(struct nd_region *nd_region,  in shrink_dpa_allocation()  argument
345 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in shrink_dpa_allocation()
346 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in shrink_dpa_allocation()
349 		rc = scan_free(nd_region, nd_mapping, label_id, n);  in shrink_dpa_allocation()
358 		struct nd_region *nd_region, struct nd_mapping *nd_mapping,  in init_dpa_allocation()  argument
370 	nd_dbg_dpa(nd_region, ndd, res, "init %d\n", rc);  in init_dpa_allocation()
391 static void space_valid(struct nd_region *nd_region, struct nvdimm_drvdata *ndd,  in space_valid()  argument
399 	align = nd_region->align / nd_region->ndr_mappings;  in space_valid()
431 static resource_size_t scan_allocate(struct nd_region *nd_region,  in scan_allocate()  argument
467 			space_valid(nd_region, ndd, label_id, NULL, next, exist,  in scan_allocate()
478 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
489 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
548 		nd_dbg_dpa(nd_region, ndd, new_res, "%s(%d) %d\n",  in scan_allocate()
569 		return init_dpa_allocation(label_id, nd_region, nd_mapping, n);  in scan_allocate()
573 static int merge_dpa(struct nd_region *nd_region,  in merge_dpa()  argument
594 		nd_dbg_dpa(nd_region, ndd, res, "merge %d\n", rc);  in merge_dpa()
607 	struct nd_region *nd_region;  in __reserve_free_pmem()  local
614 	nd_region = to_nd_region(dev);  in __reserve_free_pmem()
615 	if (nd_region->ndr_mappings == 0)  in __reserve_free_pmem()
620 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __reserve_free_pmem()
621 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in __reserve_free_pmem()
627 		n = nd_pmem_available_dpa(nd_region, nd_mapping);  in __reserve_free_pmem()
630 		rem = scan_allocate(nd_region, nd_mapping, &label_id, n);  in __reserve_free_pmem()
631 		dev_WARN_ONCE(&nd_region->dev, rem,  in __reserve_free_pmem()
665 static int grow_dpa_allocation(struct nd_region *nd_region,  in grow_dpa_allocation()  argument
670 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in grow_dpa_allocation()
671 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in grow_dpa_allocation()
675 		rem = scan_allocate(nd_region, nd_mapping, label_id, rem);  in grow_dpa_allocation()
676 		dev_WARN_ONCE(&nd_region->dev, rem,  in grow_dpa_allocation()
683 		rc = merge_dpa(nd_region, nd_mapping, label_id);  in grow_dpa_allocation()
691 static void nd_namespace_pmem_set_resource(struct nd_region *nd_region,  in nd_namespace_pmem_set_resource()  argument
703 		struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in nd_namespace_pmem_set_resource()
719 					* nd_region->ndr_mappings;  in nd_namespace_pmem_set_resource()
728 	res->start = nd_region->ndr_start + offset;  in nd_namespace_pmem_set_resource()
745 	struct nd_region *nd_region = to_nd_region(dev->parent);  in __size_store()  local
770 	if (nd_region->ndr_mappings == 0) {  in __size_store()
775 	div_u64_rem(val, nd_region->align, &remainder);  in __size_store()
778 				nd_region->align / SZ_1K);  in __size_store()
783 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __size_store()
784 		nd_mapping = &nd_region->mapping[i];  in __size_store()
796 	available = nd_region_allocatable_dpa(nd_region);  in __size_store()
804 	val = div_u64(val, nd_region->ndr_mappings);  in __size_store()
805 	allocated = div_u64(allocated, nd_region->ndr_mappings);  in __size_store()
807 		rc = shrink_dpa_allocation(nd_region, &label_id,  in __size_store()
810 		rc = grow_dpa_allocation(nd_region, &label_id, val - allocated);  in __size_store()
818 		nd_namespace_pmem_set_resource(nd_region, nspm,  in __size_store()
819 				val * nd_region->ndr_mappings);  in __size_store()
828 	if (val == 0 && id != 0 && nd_region->ns_seed != dev && !ndns->claim)  in __size_store()
837 	struct nd_region *nd_region = to_nd_region(dev->parent);  in size_store()  local
850 		rc = nd_namespace_label_update(nd_region, dev);  in size_store()
902 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nvdimm_namespace_locked()  local
904 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in nvdimm_namespace_locked()
905 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in nvdimm_namespace_locked()
954 static int namespace_update_uuid(struct nd_region *nd_region,  in namespace_update_uuid()  argument
974 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
975 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
990 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
991 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
1026 	struct nd_region *nd_region = to_nd_region(dev->parent);  in uuid_store()  local
1046 		rc = namespace_update_uuid(nd_region, dev, uuid, ns_uuid);  in uuid_store()
1048 		rc = nd_namespace_label_update(nd_region, dev);  in uuid_store()
1100 	struct nd_region *nd_region = to_nd_region(dev->parent);  in sector_size_store()  local
1120 		rc = nd_namespace_label_update(nd_region, dev);  in sector_size_store()
1133 	struct nd_region *nd_region = to_nd_region(dev->parent);  in dpa_extents_show()  local
1151 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in dpa_extents_show()
1152 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in dpa_extents_show()
1169 	struct nd_region *nd_region = to_nd_region(dev->parent);  in btt_claim_class()  local
1172 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in btt_claim_class()
1173 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in btt_claim_class()
1270 	struct nd_region *nd_region = to_nd_region(dev->parent);  in holder_class_store()  local
1278 		rc = nd_namespace_label_update(nd_region, dev);  in holder_class_store()
1524 static struct device **create_namespace_io(struct nd_region *nd_region)  in create_namespace_io()  argument
1542 	dev->parent = &nd_region->dev;  in create_namespace_io()
1544 	res->name = dev_name(&nd_region->dev);  in create_namespace_io()
1546 	res->start = nd_region->ndr_start;  in create_namespace_io()
1547 	res->end = res->start + nd_region->ndr_size - 1;  in create_namespace_io()
1553 static bool has_uuid_at_pos(struct nd_region *nd_region, const uuid_t *uuid,  in has_uuid_at_pos()  argument
1559 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in has_uuid_at_pos()
1560 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in has_uuid_at_pos()
1561 		struct nd_interleave_set *nd_set = nd_region->nd_set;  in has_uuid_at_pos()
1589 			if (!nsl_validate_nlabel(nd_region, ndd, nd_label))  in has_uuid_at_pos()
1602 static int select_pmem_id(struct nd_region *nd_region, const uuid_t *pmem_id)  in select_pmem_id()  argument
1609 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in select_pmem_id()
1610 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in select_pmem_id()
1643 			dev_dbg(&nd_region->dev, "%s invalid label for %pUb\n",  in select_pmem_id()
1661 static struct device *create_namespace_pmem(struct nd_region *nd_region,  in create_namespace_pmem()  argument
1668 	u64 cookie = nd_region_interleave_set_cookie(nd_region, nsindex);  in create_namespace_pmem()
1669 	u64 altcookie = nd_region_interleave_set_altcookie(nd_region);  in create_namespace_pmem()
1680 		dev_dbg(&nd_region->dev, "invalid interleave-set-cookie\n");  in create_namespace_pmem()
1685 		dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n",  in create_namespace_pmem()
1690 		dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n",  in create_namespace_pmem()
1701 	dev->parent = &nd_region->dev;  in create_namespace_pmem()
1703 	res->name = dev_name(&nd_region->dev);  in create_namespace_pmem()
1706 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1708 		if (has_uuid_at_pos(nd_region, &uuid, cookie, i))  in create_namespace_pmem()
1710 		if (has_uuid_at_pos(nd_region, &uuid, altcookie, i))  in create_namespace_pmem()
1715 	if (i < nd_region->ndr_mappings) {  in create_namespace_pmem()
1716 		struct nvdimm *nvdimm = nd_region->mapping[i].nvdimm;  in create_namespace_pmem()
1723 		dev_err(&nd_region->dev, "%s missing label for %pUb\n",  in create_namespace_pmem()
1735 	rc = select_pmem_id(nd_region, &uuid);  in create_namespace_pmem()
1740 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1744 		nd_mapping = &nd_region->mapping[i];  in create_namespace_pmem()
1773 	nd_namespace_pmem_set_resource(nd_region, nspm, size);  in create_namespace_pmem()
1780 		dev_dbg(&nd_region->dev, "invalid label(s)\n");  in create_namespace_pmem()
1783 		dev_dbg(&nd_region->dev, "label not found\n");  in create_namespace_pmem()
1786 		dev_dbg(&nd_region->dev, "unexpected err: %d\n", rc);  in create_namespace_pmem()
1792 static struct device *nd_namespace_pmem_create(struct nd_region *nd_region)  in nd_namespace_pmem_create()  argument
1798 	if (!is_memory(&nd_region->dev))  in nd_namespace_pmem_create()
1807 	dev->parent = &nd_region->dev;  in nd_namespace_pmem_create()
1809 	res->name = dev_name(&nd_region->dev);  in nd_namespace_pmem_create()
1812 	nspm->id = ida_simple_get(&nd_region->ns_ida, 0, 0, GFP_KERNEL);  in nd_namespace_pmem_create()
1817 	dev_set_name(dev, "namespace%d.%d", nd_region->id, nspm->id);  in nd_namespace_pmem_create()
1818 	nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in nd_namespace_pmem_create()
1825 void nd_region_create_ns_seed(struct nd_region *nd_region)  in nd_region_create_ns_seed()  argument
1827 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_ns_seed()
1829 	if (nd_region_to_nstype(nd_region) == ND_DEVICE_NAMESPACE_IO)  in nd_region_create_ns_seed()
1832 	nd_region->ns_seed = nd_namespace_pmem_create(nd_region);  in nd_region_create_ns_seed()
1838 	if (!nd_region->ns_seed)  in nd_region_create_ns_seed()
1839 		dev_err(&nd_region->dev, "failed to create namespace\n");  in nd_region_create_ns_seed()
1841 		device_initialize(nd_region->ns_seed);  in nd_region_create_ns_seed()
1842 		lockdep_set_class(&nd_region->ns_seed->mutex,  in nd_region_create_ns_seed()
1844 		nd_device_register(nd_region->ns_seed);  in nd_region_create_ns_seed()
1848 void nd_region_create_dax_seed(struct nd_region *nd_region)  in nd_region_create_dax_seed()  argument
1850 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_dax_seed()
1851 	nd_region->dax_seed = nd_dax_create(nd_region);  in nd_region_create_dax_seed()
1856 	if (!nd_region->dax_seed)  in nd_region_create_dax_seed()
1857 		dev_err(&nd_region->dev, "failed to create dax namespace\n");  in nd_region_create_dax_seed()
1860 void nd_region_create_pfn_seed(struct nd_region *nd_region)  in nd_region_create_pfn_seed()  argument
1862 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_pfn_seed()
1863 	nd_region->pfn_seed = nd_pfn_create(nd_region);  in nd_region_create_pfn_seed()
1868 	if (!nd_region->pfn_seed)  in nd_region_create_pfn_seed()
1869 		dev_err(&nd_region->dev, "failed to create pfn namespace\n");  in nd_region_create_pfn_seed()
1872 void nd_region_create_btt_seed(struct nd_region *nd_region)  in nd_region_create_btt_seed()  argument
1874 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_btt_seed()
1875 	nd_region->btt_seed = nd_btt_create(nd_region);  in nd_region_create_btt_seed()
1880 	if (!nd_region->btt_seed)  in nd_region_create_btt_seed()
1881 		dev_err(&nd_region->dev, "failed to create btt namespace\n");  in nd_region_create_btt_seed()
1884 static int add_namespace_resource(struct nd_region *nd_region,  in add_namespace_resource()  argument
1888 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in add_namespace_resource()
1902 		dev_err(&nd_region->dev,  in add_namespace_resource()
1926 static struct device **scan_labels(struct nd_region *nd_region)  in scan_labels()  argument
1931 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in scan_labels()
1948 		i = add_namespace_resource(nd_region, nd_label, devs, count);  in scan_labels()
1960 		dev = create_namespace_pmem(nd_region, nd_mapping, nd_label);  in scan_labels()
1977 	dev_dbg(&nd_region->dev, "discovered %d namespace%s\n", count,  in scan_labels()
1995 		nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in scan_labels()
1996 		dev->parent = &nd_region->dev;  in scan_labels()
1998 	} else if (is_memory(&nd_region->dev)) {  in scan_labels()
2000 		for (i = 0; i < nd_region->ndr_mappings; i++) {  in scan_labels()
2005 			nd_mapping = &nd_region->mapping[i];  in scan_labels()
2036 static struct device **create_namespaces(struct nd_region *nd_region)  in create_namespaces()  argument
2042 	if (nd_region->ndr_mappings == 0)  in create_namespaces()
2046 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2047 		nd_mapping = &nd_region->mapping[i];  in create_namespaces()
2051 	devs = scan_labels(nd_region);  in create_namespaces()
2053 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2054 		int reverse = nd_region->ndr_mappings - 1 - i;  in create_namespaces()
2056 		nd_mapping = &nd_region->mapping[reverse];  in create_namespaces()
2065 	struct nd_region *nd_region = region;  in deactivate_labels()  local
2068 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in deactivate_labels()
2069 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in deactivate_labels()
2084 static int init_active_labels(struct nd_region *nd_region)  in init_active_labels()  argument
2088 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in init_active_labels()
2089 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in init_active_labels()
2107 			dev_err(&nd_region->dev, "%s: is %s, failing probe\n",  in init_active_labels()
2140 	if (i < nd_region->ndr_mappings)  in init_active_labels()
2145 		deactivate_labels(nd_region);  in init_active_labels()
2149 	return devm_add_action_or_reset(&nd_region->dev, deactivate_labels,  in init_active_labels()
2150 					nd_region);  in init_active_labels()
2153 int nd_region_register_namespaces(struct nd_region *nd_region, int *err)  in nd_region_register_namespaces()  argument
2159 	nvdimm_bus_lock(&nd_region->dev);  in nd_region_register_namespaces()
2160 	rc = init_active_labels(nd_region);  in nd_region_register_namespaces()
2162 		nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2166 	type = nd_region_to_nstype(nd_region);  in nd_region_register_namespaces()
2169 		devs = create_namespace_io(nd_region);  in nd_region_register_namespaces()
2172 		devs = create_namespaces(nd_region);  in nd_region_register_namespaces()
2177 	nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2190 			id = ida_simple_get(&nd_region->ns_ida, 0, 0,  in nd_region_register_namespaces()
2198 		dev_set_name(dev, "namespace%d.%d", nd_region->id, id);  in nd_region_register_namespaces()
2204 		nd_region->ns_seed = devs[0];  in nd_region_register_namespaces()