33 	struct nd_region *nd_region = to_nd_region(dev->parent);  in namespace_pmem_release()  local
36 		ida_simple_remove(&nd_region->ns_ida, nspm->id);  in namespace_pmem_release()
45 	struct nd_region *nd_region = to_nd_region(dev->parent);  in namespace_blk_release()  local
48 		ida_simple_remove(&nd_region->ns_ida, nsblk->id);  in namespace_blk_release()
140 	struct nd_region *nd_region = to_nd_region(dev->parent);  in pmem_should_map_pages()  local
146 	if (!test_bit(ND_REGION_PAGEMAP, &nd_region->flags))  in pmem_should_map_pages()
188 	struct nd_region *nd_region = to_nd_region(ndns->dev.parent);  in nvdimm_namespace_disk_name()  local
205 			sprintf(name, "pmem%d.%d%s", nd_region->id, nsidx,  in nvdimm_namespace_disk_name()
208 			sprintf(name, "pmem%d%s", nd_region->id,  in nvdimm_namespace_disk_name()
214 		sprintf(name, "ndblk%d.%d%s", nd_region->id, nsblk->id,  in nvdimm_namespace_disk_name()
247 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nstype_show()  local
249 	return sprintf(buf, "%d\n", nd_region_to_nstype(nd_region));  in nstype_show()
301 	struct nd_region *nd_region = to_nd_region(nsblk->common.dev.parent);  in nd_namespace_blk_size()  local
302 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in nd_namespace_blk_size()
319 	struct nd_region *nd_region = to_nd_region(nsblk->common.dev.parent);  in __nd_namespace_blk_validate()  local
320 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in __nd_namespace_blk_validate()
376 static int nd_namespace_label_update(struct nd_region *nd_region,  in nd_namespace_label_update()  argument
397 		return nd_pmem_namespace_label_update(nd_region, nspm, size);  in nd_namespace_label_update()
407 		return nd_blk_namespace_label_update(nd_region, nsblk, size);  in nd_namespace_label_update()
415 	struct nd_region *nd_region = to_nd_region(dev->parent);  in alt_name_store()  local
423 		rc = nd_namespace_label_update(nd_region, dev);  in alt_name_store()
451 static int scan_free(struct nd_region *nd_region,  in scan_free()  argument
473 			nd_dbg_dpa(nd_region, ndd, res, "delete %d\n", rc);  in scan_free()
491 		nd_dbg_dpa(nd_region, ndd, res, "shrink %d\n", rc);  in scan_free()
509 static int shrink_dpa_allocation(struct nd_region *nd_region,  in shrink_dpa_allocation()  argument
514 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in shrink_dpa_allocation()
515 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in shrink_dpa_allocation()
518 		rc = scan_free(nd_region, nd_mapping, label_id, n);  in shrink_dpa_allocation()
527 		struct nd_region *nd_region, struct nd_mapping *nd_mapping,  in init_dpa_allocation()  argument
547 	nd_dbg_dpa(nd_region, ndd, res, "init %d\n", rc);  in init_dpa_allocation()
568 static void space_valid(struct nd_region *nd_region, struct nvdimm_drvdata *ndd,  in space_valid()  argument
583 		struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in space_valid()
591 		WARN_ON(!is_nd_blk(&nd_region->dev));  in space_valid()
592 		nvdimm_bus = walk_to_nvdimm_bus(&nd_region->dev);  in space_valid()
619 static resource_size_t scan_allocate(struct nd_region *nd_region,  in scan_allocate()  argument
656 			space_valid(nd_region, ndd, label_id, NULL, next, exist,  in scan_allocate()
667 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
678 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
741 		nd_dbg_dpa(nd_region, ndd, new_res, "%s(%d) %d\n",  in scan_allocate()
767 		return init_dpa_allocation(label_id, nd_region, nd_mapping, n);  in scan_allocate()
771 static int merge_dpa(struct nd_region *nd_region,  in merge_dpa()  argument
792 		nd_dbg_dpa(nd_region, ndd, res, "merge %d\n", rc);  in merge_dpa()
805 	struct nd_region *nd_region;  in __reserve_free_pmem()  local
812 	nd_region = to_nd_region(dev);  in __reserve_free_pmem()
813 	if (nd_region->ndr_mappings == 0)  in __reserve_free_pmem()
818 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __reserve_free_pmem()
819 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in __reserve_free_pmem()
825 		n = nd_pmem_available_dpa(nd_region, nd_mapping, &rem);  in __reserve_free_pmem()
828 		rem = scan_allocate(nd_region, nd_mapping, &label_id, n);  in __reserve_free_pmem()
829 		dev_WARN_ONCE(&nd_region->dev, rem,  in __reserve_free_pmem()
876 static int grow_dpa_allocation(struct nd_region *nd_region,  in grow_dpa_allocation()  argument
879 	struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(&nd_region->dev);  in grow_dpa_allocation()
883 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in grow_dpa_allocation()
884 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in grow_dpa_allocation()
900 			rem = scan_allocate(nd_region, nd_mapping,  in grow_dpa_allocation()
910 		dev_WARN_ONCE(&nd_region->dev, rem,  in grow_dpa_allocation()
917 		rc = merge_dpa(nd_region, nd_mapping, label_id);  in grow_dpa_allocation()
925 static void nd_namespace_pmem_set_resource(struct nd_region *nd_region,  in nd_namespace_pmem_set_resource()  argument
937 		struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in nd_namespace_pmem_set_resource()
953 					* nd_region->ndr_mappings;  in nd_namespace_pmem_set_resource()
962 	res->start = nd_region->ndr_start + offset;  in nd_namespace_pmem_set_resource()
978 	struct nd_region *nd_region = to_nd_region(dev->parent);  in __size_store()  local
1009 	if (nd_region->ndr_mappings == 0) {  in __size_store()
1014 	div_u64_rem(val, SZ_4K * nd_region->ndr_mappings, &remainder);  in __size_store()
1017 				(SZ_4K * nd_region->ndr_mappings) / SZ_1K);  in __size_store()
1022 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __size_store()
1023 		nd_mapping = &nd_region->mapping[i];  in __size_store()
1035 	available = nd_region_allocatable_dpa(nd_region);  in __size_store()
1043 	val = div_u64(val, nd_region->ndr_mappings);  in __size_store()
1044 	allocated = div_u64(allocated, nd_region->ndr_mappings);  in __size_store()
1046 		rc = shrink_dpa_allocation(nd_region, &label_id,  in __size_store()
1049 		rc = grow_dpa_allocation(nd_region, &label_id, val - allocated);  in __size_store()
1057 		nd_namespace_pmem_set_resource(nd_region, nspm,  in __size_store()
1058 				val * nd_region->ndr_mappings);  in __size_store()
1067 	if (val == 0 && id != 0 && nd_region->ns_seed != dev && !ndns->claim)  in __size_store()
1076 	struct nd_region *nd_region = to_nd_region(dev->parent);  in size_store()  local
1090 		rc = nd_namespace_label_update(nd_region, dev);  in size_store()
1152 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nvdimm_namespace_locked()  local
1154 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in nvdimm_namespace_locked()
1155 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in nvdimm_namespace_locked()
1208 static int namespace_update_uuid(struct nd_region *nd_region,  in namespace_update_uuid()  argument
1228 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
1229 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
1244 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
1245 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
1263 	struct nd_region *nd_region = to_nd_region(dev->parent);  in uuid_store()  local
1287 		rc = namespace_update_uuid(nd_region, dev, uuid, ns_uuid);  in uuid_store()
1289 		rc = nd_namespace_label_update(nd_region, dev);  in uuid_store()
1351 	struct nd_region *nd_region = to_nd_region(dev->parent);  in sector_size_store()  local
1376 		rc = nd_namespace_label_update(nd_region, dev);  in sector_size_store()
1389 	struct nd_region *nd_region = to_nd_region(dev->parent);  in dpa_extents_show()  local
1412 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in dpa_extents_show()
1413 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in dpa_extents_show()
1430 	struct nd_region *nd_region = to_nd_region(dev->parent);  in btt_claim_class()  local
1433 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in btt_claim_class()
1434 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in btt_claim_class()
1531 	struct nd_region *nd_region = to_nd_region(dev->parent);  in holder_class_store()  local
1539 		rc = nd_namespace_label_update(nd_region, dev);  in holder_class_store()
1752 static struct device **create_namespace_io(struct nd_region *nd_region)  in create_namespace_io()  argument
1770 	dev->parent = &nd_region->dev;  in create_namespace_io()
1772 	res->name = dev_name(&nd_region->dev);  in create_namespace_io()
1774 	res->start = nd_region->ndr_start;  in create_namespace_io()
1775 	res->end = res->start + nd_region->ndr_size - 1;  in create_namespace_io()
1781 static bool has_uuid_at_pos(struct nd_region *nd_region, u8 *uuid,  in has_uuid_at_pos()  argument
1787 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in has_uuid_at_pos()
1788 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in has_uuid_at_pos()
1789 		struct nd_interleave_set *nd_set = nd_region->nd_set;  in has_uuid_at_pos()
1825 			if (nlabel != nd_region->ndr_mappings)  in has_uuid_at_pos()
1838 static int select_pmem_id(struct nd_region *nd_region, u8 *pmem_id)  in select_pmem_id()  argument
1845 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in select_pmem_id()
1846 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in select_pmem_id()
1879 			dev_dbg(&nd_region->dev, "%s invalid label for %pUb\n",  in select_pmem_id()
1896 static struct device *create_namespace_pmem(struct nd_region *nd_region,  in create_namespace_pmem()  argument
1900 	u64 cookie = nd_region_interleave_set_cookie(nd_region, nsindex);  in create_namespace_pmem()
1901 	u64 altcookie = nd_region_interleave_set_altcookie(nd_region);  in create_namespace_pmem()
1912 		dev_dbg(&nd_region->dev, "invalid interleave-set-cookie\n");  in create_namespace_pmem()
1917 		dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n",  in create_namespace_pmem()
1922 		dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n",  in create_namespace_pmem()
1933 	dev->parent = &nd_region->dev;  in create_namespace_pmem()
1935 	res->name = dev_name(&nd_region->dev);  in create_namespace_pmem()
1938 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1939 		if (has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i))  in create_namespace_pmem()
1941 		if (has_uuid_at_pos(nd_region, nd_label->uuid, altcookie, i))  in create_namespace_pmem()
1946 	if (i < nd_region->ndr_mappings) {  in create_namespace_pmem()
1947 		struct nvdimm *nvdimm = nd_region->mapping[i].nvdimm;  in create_namespace_pmem()
1954 		dev_err(&nd_region->dev, "%s missing label for %pUb\n",  in create_namespace_pmem()
1968 	rc = select_pmem_id(nd_region, nd_label->uuid);  in create_namespace_pmem()
1973 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1977 		nd_mapping = &nd_region->mapping[i];  in create_namespace_pmem()
2008 	nd_namespace_pmem_set_resource(nd_region, nspm, size);  in create_namespace_pmem()
2015 		dev_dbg(&nd_region->dev, "invalid label(s)\n");  in create_namespace_pmem()
2018 		dev_dbg(&nd_region->dev, "label not found\n");  in create_namespace_pmem()
2021 		dev_dbg(&nd_region->dev, "unexpected err: %d\n", rc);  in create_namespace_pmem()
2027 struct resource *nsblk_add_resource(struct nd_region *nd_region,  in nsblk_add_resource()  argument
2050 static struct device *nd_namespace_blk_create(struct nd_region *nd_region)  in nd_namespace_blk_create()  argument
2055 	if (!is_nd_blk(&nd_region->dev))  in nd_namespace_blk_create()
2064 	nsblk->id = ida_simple_get(&nd_region->ns_ida, 0, 0, GFP_KERNEL);  in nd_namespace_blk_create()
2069 	dev_set_name(dev, "namespace%d.%d", nd_region->id, nsblk->id);  in nd_namespace_blk_create()
2070 	dev->parent = &nd_region->dev;  in nd_namespace_blk_create()
2076 static struct device *nd_namespace_pmem_create(struct nd_region *nd_region)  in nd_namespace_pmem_create()  argument
2082 	if (!is_memory(&nd_region->dev))  in nd_namespace_pmem_create()
2091 	dev->parent = &nd_region->dev;  in nd_namespace_pmem_create()
2093 	res->name = dev_name(&nd_region->dev);  in nd_namespace_pmem_create()
2096 	nspm->id = ida_simple_get(&nd_region->ns_ida, 0, 0, GFP_KERNEL);  in nd_namespace_pmem_create()
2101 	dev_set_name(dev, "namespace%d.%d", nd_region->id, nspm->id);  in nd_namespace_pmem_create()
2102 	dev->parent = &nd_region->dev;  in nd_namespace_pmem_create()
2104 	nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in nd_namespace_pmem_create()
2109 void nd_region_create_ns_seed(struct nd_region *nd_region)  in nd_region_create_ns_seed()  argument
2111 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_ns_seed()
2113 	if (nd_region_to_nstype(nd_region) == ND_DEVICE_NAMESPACE_IO)  in nd_region_create_ns_seed()
2116 	if (is_nd_blk(&nd_region->dev))  in nd_region_create_ns_seed()
2117 		nd_region->ns_seed = nd_namespace_blk_create(nd_region);  in nd_region_create_ns_seed()
2119 		nd_region->ns_seed = nd_namespace_pmem_create(nd_region);  in nd_region_create_ns_seed()
2125 	if (!nd_region->ns_seed)  in nd_region_create_ns_seed()
2126 		dev_err(&nd_region->dev, "failed to create %s namespace\n",  in nd_region_create_ns_seed()
2127 				is_nd_blk(&nd_region->dev) ? "blk" : "pmem");  in nd_region_create_ns_seed()
2129 		nd_device_register(nd_region->ns_seed);  in nd_region_create_ns_seed()
2132 void nd_region_create_dax_seed(struct nd_region *nd_region)  in nd_region_create_dax_seed()  argument
2134 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_dax_seed()
2135 	nd_region->dax_seed = nd_dax_create(nd_region);  in nd_region_create_dax_seed()
2140 	if (!nd_region->dax_seed)  in nd_region_create_dax_seed()
2141 		dev_err(&nd_region->dev, "failed to create dax namespace\n");  in nd_region_create_dax_seed()
2144 void nd_region_create_pfn_seed(struct nd_region *nd_region)  in nd_region_create_pfn_seed()  argument
2146 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_pfn_seed()
2147 	nd_region->pfn_seed = nd_pfn_create(nd_region);  in nd_region_create_pfn_seed()
2152 	if (!nd_region->pfn_seed)  in nd_region_create_pfn_seed()
2153 		dev_err(&nd_region->dev, "failed to create pfn namespace\n");  in nd_region_create_pfn_seed()
2156 void nd_region_create_btt_seed(struct nd_region *nd_region)  in nd_region_create_btt_seed()  argument
2158 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_btt_seed()
2159 	nd_region->btt_seed = nd_btt_create(nd_region);  in nd_region_create_btt_seed()
2164 	if (!nd_region->btt_seed)  in nd_region_create_btt_seed()
2165 		dev_err(&nd_region->dev, "failed to create btt namespace\n");  in nd_region_create_btt_seed()
2168 static int add_namespace_resource(struct nd_region *nd_region,  in add_namespace_resource()  argument
2172 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in add_namespace_resource()
2188 			res = nsblk_add_resource(nd_region, ndd,  in add_namespace_resource()
2193 			nd_dbg_dpa(nd_region, ndd, res, "%d assign\n", count);  in add_namespace_resource()
2195 			dev_err(&nd_region->dev,  in add_namespace_resource()
2206 static struct device *create_namespace_blk(struct nd_region *nd_region,  in create_namespace_blk()  argument
2210 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in create_namespace_blk()
2211 	struct nd_interleave_set *nd_set = nd_region->nd_set;  in create_namespace_blk()
2239 	dev->parent = &nd_region->dev;  in create_namespace_blk()
2253 	res = nsblk_add_resource(nd_region, ndd, nsblk,  in create_namespace_blk()
2257 	nd_dbg_dpa(nd_region, ndd, res, "%d: assign\n", count);  in create_namespace_blk()
2289 static struct device **scan_labels(struct nd_region *nd_region)  in scan_labels()  argument
2294 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in scan_labels()
2306 		if (is_nd_blk(&nd_region->dev)  in scan_labels()
2316 		i = add_namespace_resource(nd_region, nd_label, devs, count);  in scan_labels()
2328 		if (is_nd_blk(&nd_region->dev))  in scan_labels()
2329 			dev = create_namespace_blk(nd_region, nd_label, count);  in scan_labels()
2335 			dev = create_namespace_pmem(nd_region, nsindex, nd_label);  in scan_labels()
2354 	dev_dbg(&nd_region->dev, "discovered %d %s namespace%s\n",  in scan_labels()
2355 			count, is_nd_blk(&nd_region->dev)  in scan_labels()
2365 		if (is_nd_blk(&nd_region->dev)) {  in scan_labels()
2381 			nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in scan_labels()
2383 		dev->parent = &nd_region->dev;  in scan_labels()
2385 	} else if (is_memory(&nd_region->dev)) {  in scan_labels()
2387 		for (i = 0; i < nd_region->ndr_mappings; i++) {  in scan_labels()
2392 			nd_mapping = &nd_region->mapping[i];  in scan_labels()
2417 			if (is_nd_blk(&nd_region->dev))  in scan_labels()
2426 static struct device **create_namespaces(struct nd_region *nd_region)  in create_namespaces()  argument
2432 	if (nd_region->ndr_mappings == 0)  in create_namespaces()
2436 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2437 		nd_mapping = &nd_region->mapping[i];  in create_namespaces()
2441 	devs = scan_labels(nd_region);  in create_namespaces()
2443 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2444 		int reverse = nd_region->ndr_mappings - 1 - i;  in create_namespaces()
2446 		nd_mapping = &nd_region->mapping[reverse];  in create_namespaces()
2453 static int init_active_labels(struct nd_region *nd_region)  in init_active_labels()  argument
2457 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in init_active_labels()
2458 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in init_active_labels()
2476 			dev_err(&nd_region->dev, "%s: is %s, failing probe\n",  in init_active_labels()
2516 int nd_region_register_namespaces(struct nd_region *nd_region, int *err)  in nd_region_register_namespaces()  argument
2522 	nvdimm_bus_lock(&nd_region->dev);  in nd_region_register_namespaces()
2523 	rc = init_active_labels(nd_region);  in nd_region_register_namespaces()
2525 		nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2529 	type = nd_region_to_nstype(nd_region);  in nd_region_register_namespaces()
2532 		devs = create_namespace_io(nd_region);  in nd_region_register_namespaces()
2536 		devs = create_namespaces(nd_region);  in nd_region_register_namespaces()
2541 	nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2554 			id = ida_simple_get(&nd_region->ns_ida, 0, 0,  in nd_region_register_namespaces()
2561 			id = ida_simple_get(&nd_region->ns_ida, 0, 0,  in nd_region_register_namespaces()
2569 		dev_set_name(dev, "namespace%d.%d", nd_region->id, id);  in nd_region_register_namespaces()
2574 		nd_region->ns_seed = devs[0];  in nd_region_register_namespaces()