1 /* 2 * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 */ 13 #ifndef __ND_CORE_H__ 14 #define __ND_CORE_H__ 15 #include <linux/libnvdimm.h> 16 #include <linux/device.h> 17 #include <linux/libnvdimm.h> 18 #include <linux/sizes.h> 19 #include <linux/mutex.h> 20 #include <linux/nd.h> 21 22 extern struct list_head nvdimm_bus_list; 23 extern struct mutex nvdimm_bus_list_mutex; 24 extern int nvdimm_major; 25 26 struct nvdimm_bus { 27 struct nvdimm_bus_descriptor *nd_desc; 28 wait_queue_head_t probe_wait; 29 struct module *module; 30 struct list_head list; 31 struct device dev; 32 int id, probe_active; 33 struct list_head poison_list; 34 struct mutex reconfig_mutex; 35 }; 36 37 struct nvdimm { 38 unsigned long flags; 39 void *provider_data; 40 unsigned long *dsm_mask; 41 struct device dev; 42 atomic_t busy; 43 int id; 44 }; 45 46 bool is_nvdimm(struct device *dev); 47 bool is_nd_pmem(struct device *dev); 48 bool is_nd_blk(struct device *dev); 49 struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev); 50 int __init nvdimm_bus_init(void); 51 void nvdimm_bus_exit(void); 52 void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev); 53 struct nd_region; 54 void nd_region_create_blk_seed(struct nd_region *nd_region); 55 void nd_region_create_btt_seed(struct nd_region *nd_region); 56 void nd_region_create_pfn_seed(struct nd_region *nd_region); 57 void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev); 58 int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus); 59 void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus); 60 void nd_synchronize(void); 61 int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus); 62 int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus); 63 int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus); 64 void __nd_device_register(struct device *dev); 65 int nd_match_dimm(struct device *dev, void *data); 66 struct nd_label_id; 67 char *nd_label_gen_id(struct nd_label_id *label_id, u8 *uuid, u32 flags); 68 bool nd_is_uuid_unique(struct device *dev, u8 *uuid); 69 struct nd_region; 70 struct nvdimm_drvdata; 71 struct nd_mapping; 72 resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region, 73 struct nd_mapping *nd_mapping, resource_size_t *overlap); 74 resource_size_t nd_blk_available_dpa(struct nd_mapping *nd_mapping); 75 resource_size_t nd_region_available_dpa(struct nd_region *nd_region); 76 resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd, 77 struct nd_label_id *label_id); 78 struct nd_mapping; 79 struct resource *nsblk_add_resource(struct nd_region *nd_region, 80 struct nvdimm_drvdata *ndd, struct nd_namespace_blk *nsblk, 81 resource_size_t start); 82 int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd); 83 void get_ndd(struct nvdimm_drvdata *ndd); 84 resource_size_t __nvdimm_namespace_capacity(struct nd_namespace_common *ndns); 85 void nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns); 86 void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns); 87 bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach, 88 struct nd_namespace_common **_ndns); 89 bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach, 90 struct nd_namespace_common **_ndns); 91 ssize_t nd_namespace_store(struct device *dev, 92 struct nd_namespace_common **_ndns, const char *buf, 93 size_t len); 94 #endif /* __ND_CORE_H__ */ 95