27 	struct nd_region *nd_region = to_nd_region(dev->parent);  in namespace_pmem_release()  local
30 		ida_simple_remove(&nd_region->ns_ida, nspm->id);  in namespace_pmem_release()
90 	struct nd_region *nd_region = to_nd_region(dev->parent);  in pmem_should_map_pages()  local
97 	if (!test_bit(ND_REGION_PAGEMAP, &nd_region->flags))  in pmem_should_map_pages()
142 	struct nd_region *nd_region = to_nd_region(ndns->dev.parent);  in nvdimm_namespace_disk_name()  local
159 			sprintf(name, "pmem%d.%d%s", nd_region->id, nsidx,  in nvdimm_namespace_disk_name()
162 			sprintf(name, "pmem%d%s", nd_region->id,  in nvdimm_namespace_disk_name()
186 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nstype_show()  local
188 	return sprintf(buf, "%d\n", nd_region_to_nstype(nd_region));  in nstype_show()
233 static int nd_namespace_label_update(struct nd_region *nd_region,  in nd_namespace_label_update()  argument
254 		return nd_pmem_namespace_label_update(nd_region, nspm, size);  in nd_namespace_label_update()
262 	struct nd_region *nd_region = to_nd_region(dev->parent);  in alt_name_store()  local
270 		rc = nd_namespace_label_update(nd_region, dev);  in alt_name_store()
294 static int scan_free(struct nd_region *nd_region,  in scan_free()  argument
314 			nd_dbg_dpa(nd_region, ndd, res, "delete %d\n", rc);  in scan_free()
323 		nd_dbg_dpa(nd_region, ndd, res, "shrink %d\n", rc);  in scan_free()
341 static int shrink_dpa_allocation(struct nd_region *nd_region,  in shrink_dpa_allocation()  argument
346 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in shrink_dpa_allocation()
347 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in shrink_dpa_allocation()
350 		rc = scan_free(nd_region, nd_mapping, label_id, n);  in shrink_dpa_allocation()
359 		struct nd_region *nd_region, struct nd_mapping *nd_mapping,  in init_dpa_allocation()  argument
371 	nd_dbg_dpa(nd_region, ndd, res, "init %d\n", rc);  in init_dpa_allocation()
392 static void space_valid(struct nd_region *nd_region, struct nvdimm_drvdata *ndd,  in space_valid()  argument
400 	align = nd_region->align / nd_region->ndr_mappings;  in space_valid()
432 static resource_size_t scan_allocate(struct nd_region *nd_region,  in scan_allocate()  argument
468 			space_valid(nd_region, ndd, label_id, NULL, next, exist,  in scan_allocate()
479 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
490 			space_valid(nd_region, ndd, label_id, res, next, exist,  in scan_allocate()
549 		nd_dbg_dpa(nd_region, ndd, new_res, "%s(%d) %d\n",  in scan_allocate()
570 		return init_dpa_allocation(label_id, nd_region, nd_mapping, n);  in scan_allocate()
574 static int merge_dpa(struct nd_region *nd_region,  in merge_dpa()  argument
595 		nd_dbg_dpa(nd_region, ndd, res, "merge %d\n", rc);  in merge_dpa()
608 	struct nd_region *nd_region;  in __reserve_free_pmem()  local
615 	nd_region = to_nd_region(dev);  in __reserve_free_pmem()
616 	if (nd_region->ndr_mappings == 0)  in __reserve_free_pmem()
621 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __reserve_free_pmem()
622 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in __reserve_free_pmem()
628 		n = nd_pmem_available_dpa(nd_region, nd_mapping);  in __reserve_free_pmem()
631 		rem = scan_allocate(nd_region, nd_mapping, &label_id, n);  in __reserve_free_pmem()
632 		dev_WARN_ONCE(&nd_region->dev, rem,  in __reserve_free_pmem()
666 static int grow_dpa_allocation(struct nd_region *nd_region,  in grow_dpa_allocation()  argument
671 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in grow_dpa_allocation()
672 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in grow_dpa_allocation()
676 		rem = scan_allocate(nd_region, nd_mapping, label_id, rem);  in grow_dpa_allocation()
677 		dev_WARN_ONCE(&nd_region->dev, rem,  in grow_dpa_allocation()
684 		rc = merge_dpa(nd_region, nd_mapping, label_id);  in grow_dpa_allocation()
692 static void nd_namespace_pmem_set_resource(struct nd_region *nd_region,  in nd_namespace_pmem_set_resource()  argument
704 		struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in nd_namespace_pmem_set_resource()
720 					* nd_region->ndr_mappings;  in nd_namespace_pmem_set_resource()
729 	res->start = nd_region->ndr_start + offset;  in nd_namespace_pmem_set_resource()
746 	struct nd_region *nd_region = to_nd_region(dev->parent);  in __size_store()  local
771 	if (nd_region->ndr_mappings == 0) {  in __size_store()
776 	div_u64_rem(val, nd_region->align, &remainder);  in __size_store()
779 				nd_region->align / SZ_1K);  in __size_store()
784 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in __size_store()
785 		nd_mapping = &nd_region->mapping[i];  in __size_store()
797 	available = nd_region_allocatable_dpa(nd_region);  in __size_store()
805 	val = div_u64(val, nd_region->ndr_mappings);  in __size_store()
806 	allocated = div_u64(allocated, nd_region->ndr_mappings);  in __size_store()
808 		rc = shrink_dpa_allocation(nd_region, &label_id,  in __size_store()
811 		rc = grow_dpa_allocation(nd_region, &label_id, val - allocated);  in __size_store()
819 		nd_namespace_pmem_set_resource(nd_region, nspm,  in __size_store()
820 				val * nd_region->ndr_mappings);  in __size_store()
829 	if (val == 0 && id != 0 && nd_region->ns_seed != dev && !ndns->claim)  in __size_store()
838 	struct nd_region *nd_region = to_nd_region(dev->parent);  in size_store()  local
851 		rc = nd_namespace_label_update(nd_region, dev);  in size_store()
903 	struct nd_region *nd_region = to_nd_region(dev->parent);  in nvdimm_namespace_locked()  local
905 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in nvdimm_namespace_locked()
906 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in nvdimm_namespace_locked()
955 static int namespace_update_uuid(struct nd_region *nd_region,  in namespace_update_uuid()  argument
975 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
976 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
991 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in namespace_update_uuid()
992 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in namespace_update_uuid()
1027 	struct nd_region *nd_region = to_nd_region(dev->parent);  in uuid_store()  local
1047 		rc = namespace_update_uuid(nd_region, dev, uuid, ns_uuid);  in uuid_store()
1049 		rc = nd_namespace_label_update(nd_region, dev);  in uuid_store()
1101 	struct nd_region *nd_region = to_nd_region(dev->parent);  in sector_size_store()  local
1121 		rc = nd_namespace_label_update(nd_region, dev);  in sector_size_store()
1134 	struct nd_region *nd_region = to_nd_region(dev->parent);  in dpa_extents_show()  local
1152 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in dpa_extents_show()
1153 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in dpa_extents_show()
1170 	struct nd_region *nd_region = to_nd_region(dev->parent);  in btt_claim_class()  local
1173 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in btt_claim_class()
1174 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in btt_claim_class()
1271 	struct nd_region *nd_region = to_nd_region(dev->parent);  in holder_class_store()  local
1279 		rc = nd_namespace_label_update(nd_region, dev);  in holder_class_store()
1525 static struct device **create_namespace_io(struct nd_region *nd_region)  in create_namespace_io()  argument
1543 	dev->parent = &nd_region->dev;  in create_namespace_io()
1545 	res->name = dev_name(&nd_region->dev);  in create_namespace_io()
1547 	res->start = nd_region->ndr_start;  in create_namespace_io()
1548 	res->end = res->start + nd_region->ndr_size - 1;  in create_namespace_io()
1554 static bool has_uuid_at_pos(struct nd_region *nd_region, const uuid_t *uuid,  in has_uuid_at_pos()  argument
1560 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in has_uuid_at_pos()
1561 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in has_uuid_at_pos()
1562 		struct nd_interleave_set *nd_set = nd_region->nd_set;  in has_uuid_at_pos()
1590 			if (!nsl_validate_nlabel(nd_region, ndd, nd_label))  in has_uuid_at_pos()
1603 static int select_pmem_id(struct nd_region *nd_region, const uuid_t *pmem_id)  in select_pmem_id()  argument
1610 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in select_pmem_id()
1611 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in select_pmem_id()
1644 			dev_dbg(&nd_region->dev, "%s invalid label for %pUb\n",  in select_pmem_id()
1662 static struct device *create_namespace_pmem(struct nd_region *nd_region,  in create_namespace_pmem()  argument
1669 	u64 cookie = nd_region_interleave_set_cookie(nd_region, nsindex);  in create_namespace_pmem()
1670 	u64 altcookie = nd_region_interleave_set_altcookie(nd_region);  in create_namespace_pmem()
1681 		dev_dbg(&nd_region->dev, "invalid interleave-set-cookie\n");  in create_namespace_pmem()
1686 		dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n",  in create_namespace_pmem()
1691 		dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n",  in create_namespace_pmem()
1702 	dev->parent = &nd_region->dev;  in create_namespace_pmem()
1704 	res->name = dev_name(&nd_region->dev);  in create_namespace_pmem()
1707 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1709 		if (has_uuid_at_pos(nd_region, &uuid, cookie, i))  in create_namespace_pmem()
1711 		if (has_uuid_at_pos(nd_region, &uuid, altcookie, i))  in create_namespace_pmem()
1716 	if (i < nd_region->ndr_mappings) {  in create_namespace_pmem()
1717 		struct nvdimm *nvdimm = nd_region->mapping[i].nvdimm;  in create_namespace_pmem()
1724 		dev_err(&nd_region->dev, "%s missing label for %pUb\n",  in create_namespace_pmem()
1736 	rc = select_pmem_id(nd_region, &uuid);  in create_namespace_pmem()
1741 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespace_pmem()
1745 		nd_mapping = &nd_region->mapping[i];  in create_namespace_pmem()
1774 	nd_namespace_pmem_set_resource(nd_region, nspm, size);  in create_namespace_pmem()
1781 		dev_dbg(&nd_region->dev, "invalid label(s)\n");  in create_namespace_pmem()
1784 		dev_dbg(&nd_region->dev, "label not found\n");  in create_namespace_pmem()
1787 		dev_dbg(&nd_region->dev, "unexpected err: %d\n", rc);  in create_namespace_pmem()
1793 static struct device *nd_namespace_pmem_create(struct nd_region *nd_region)  in nd_namespace_pmem_create()  argument
1799 	if (!is_memory(&nd_region->dev))  in nd_namespace_pmem_create()
1808 	dev->parent = &nd_region->dev;  in nd_namespace_pmem_create()
1810 	res->name = dev_name(&nd_region->dev);  in nd_namespace_pmem_create()
1813 	nspm->id = ida_simple_get(&nd_region->ns_ida, 0, 0, GFP_KERNEL);  in nd_namespace_pmem_create()
1818 	dev_set_name(dev, "namespace%d.%d", nd_region->id, nspm->id);  in nd_namespace_pmem_create()
1819 	nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in nd_namespace_pmem_create()
1826 void nd_region_create_ns_seed(struct nd_region *nd_region)  in nd_region_create_ns_seed()  argument
1828 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_ns_seed()
1830 	if (nd_region_to_nstype(nd_region) == ND_DEVICE_NAMESPACE_IO)  in nd_region_create_ns_seed()
1833 	nd_region->ns_seed = nd_namespace_pmem_create(nd_region);  in nd_region_create_ns_seed()
1839 	if (!nd_region->ns_seed)  in nd_region_create_ns_seed()
1840 		dev_err(&nd_region->dev, "failed to create namespace\n");  in nd_region_create_ns_seed()
1842 		device_initialize(nd_region->ns_seed);  in nd_region_create_ns_seed()
1843 		lockdep_set_class(&nd_region->ns_seed->mutex,  in nd_region_create_ns_seed()
1845 		nd_device_register(nd_region->ns_seed);  in nd_region_create_ns_seed()
1849 void nd_region_create_dax_seed(struct nd_region *nd_region)  in nd_region_create_dax_seed()  argument
1851 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_dax_seed()
1852 	nd_region->dax_seed = nd_dax_create(nd_region);  in nd_region_create_dax_seed()
1857 	if (!nd_region->dax_seed)  in nd_region_create_dax_seed()
1858 		dev_err(&nd_region->dev, "failed to create dax namespace\n");  in nd_region_create_dax_seed()
1861 void nd_region_create_pfn_seed(struct nd_region *nd_region)  in nd_region_create_pfn_seed()  argument
1863 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_pfn_seed()
1864 	nd_region->pfn_seed = nd_pfn_create(nd_region);  in nd_region_create_pfn_seed()
1869 	if (!nd_region->pfn_seed)  in nd_region_create_pfn_seed()
1870 		dev_err(&nd_region->dev, "failed to create pfn namespace\n");  in nd_region_create_pfn_seed()
1873 void nd_region_create_btt_seed(struct nd_region *nd_region)  in nd_region_create_btt_seed()  argument
1875 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));  in nd_region_create_btt_seed()
1876 	nd_region->btt_seed = nd_btt_create(nd_region);  in nd_region_create_btt_seed()
1881 	if (!nd_region->btt_seed)  in nd_region_create_btt_seed()
1882 		dev_err(&nd_region->dev, "failed to create btt namespace\n");  in nd_region_create_btt_seed()
1885 static int add_namespace_resource(struct nd_region *nd_region,  in add_namespace_resource()  argument
1889 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in add_namespace_resource()
1903 		dev_err(&nd_region->dev,  in add_namespace_resource()
1927 static struct device **scan_labels(struct nd_region *nd_region)  in scan_labels()  argument
1932 	struct nd_mapping *nd_mapping = &nd_region->mapping[0];  in scan_labels()
1949 		i = add_namespace_resource(nd_region, nd_label, devs, count);  in scan_labels()
1961 		dev = create_namespace_pmem(nd_region, nd_mapping, nd_label);  in scan_labels()
1978 	dev_dbg(&nd_region->dev, "discovered %d namespace%s\n", count,  in scan_labels()
1996 		nd_namespace_pmem_set_resource(nd_region, nspm, 0);  in scan_labels()
1997 		dev->parent = &nd_region->dev;  in scan_labels()
1999 	} else if (is_memory(&nd_region->dev)) {  in scan_labels()
2001 		for (i = 0; i < nd_region->ndr_mappings; i++) {  in scan_labels()
2006 			nd_mapping = &nd_region->mapping[i];  in scan_labels()
2037 static struct device **create_namespaces(struct nd_region *nd_region)  in create_namespaces()  argument
2043 	if (nd_region->ndr_mappings == 0)  in create_namespaces()
2047 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2048 		nd_mapping = &nd_region->mapping[i];  in create_namespaces()
2052 	devs = scan_labels(nd_region);  in create_namespaces()
2054 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in create_namespaces()
2055 		int reverse = nd_region->ndr_mappings - 1 - i;  in create_namespaces()
2057 		nd_mapping = &nd_region->mapping[reverse];  in create_namespaces()
2066 	struct nd_region *nd_region = region;  in deactivate_labels()  local
2069 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in deactivate_labels()
2070 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in deactivate_labels()
2085 static int init_active_labels(struct nd_region *nd_region)  in init_active_labels()  argument
2089 	for (i = 0; i < nd_region->ndr_mappings; i++) {  in init_active_labels()
2090 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];  in init_active_labels()
2108 			dev_err(&nd_region->dev, "%s: is %s, failing probe\n",  in init_active_labels()
2141 	if (i < nd_region->ndr_mappings)  in init_active_labels()
2146 		deactivate_labels(nd_region);  in init_active_labels()
2150 	return devm_add_action_or_reset(&nd_region->dev, deactivate_labels,  in init_active_labels()
2151 					nd_region);  in init_active_labels()
2154 int nd_region_register_namespaces(struct nd_region *nd_region, int *err)  in nd_region_register_namespaces()  argument
2160 	nvdimm_bus_lock(&nd_region->dev);  in nd_region_register_namespaces()
2161 	rc = init_active_labels(nd_region);  in nd_region_register_namespaces()
2163 		nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2167 	type = nd_region_to_nstype(nd_region);  in nd_region_register_namespaces()
2170 		devs = create_namespace_io(nd_region);  in nd_region_register_namespaces()
2173 		devs = create_namespaces(nd_region);  in nd_region_register_namespaces()
2178 	nvdimm_bus_unlock(&nd_region->dev);  in nd_region_register_namespaces()
2191 			id = ida_simple_get(&nd_region->ns_ida, 0, 0,  in nd_region_register_namespaces()
2199 		dev_set_name(dev, "namespace%d.%d", nd_region->id, id);  in nd_region_register_namespaces()
2205 		nd_region->ns_seed = devs[0];  in nd_region_register_namespaces()