drivers/nvdimm/nd-core.h

   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
  21 extern struct list_head nvdimm_bus_list;
  22 extern struct mutex nvdimm_bus_list_mutex;
  23 extern int nvdimm_major;
  24
  25 struct nvdimm_bus {
  26         struct nvdimm_bus_descriptor *nd_desc;
  27         wait_queue_head_t probe_wait;
  28         struct module *module;
  29         struct list_head list;
  30         struct device dev;
  31         int id, probe_active;
  32         struct mutex reconfig_mutex;
  33 };
  34
  35 struct nvdimm {
  36         unsigned long flags;
  37         void *provider_data;
  38         unsigned long *dsm_mask;
  39         struct device dev;
  40         atomic_t busy;
  41         int id;
  42 };
  43
  44 bool is_nvdimm(struct device *dev);
  45 bool is_nd_blk(struct device *dev);
  46 bool is_nd_pmem(struct device *dev);
  47 struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev);
  48 int __init nvdimm_bus_init(void);
  49 void nvdimm_bus_exit(void);
  50 void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
  51 void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
  52 int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
  53 void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
  54 void nd_synchronize(void);
  55 int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus);
  56 int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus);
  57 int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus);
  58 int nd_match_dimm(struct device *dev, void *data);
  59 #endif /* __ND_CORE_H__ */