blob: 159aed53204249ce6e9da13fcaa0b58406a1f2f6 [file] [log] [blame]
Dan Williamsb94d5232015-05-19 22:54:31 -04001/*
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>
Dan Williamseaf96152015-05-01 13:11:27 -040017#include <linux/libnvdimm.h>
18#include <linux/sizes.h>
19#include <linux/mutex.h>
Dan Williams1b40e092015-05-01 13:34:01 -040020#include <linux/nd.h>
Dan Williamsb94d5232015-05-19 22:54:31 -040021
Dan Williamse6dfb2d2015-04-25 03:56:17 -040022extern struct list_head nvdimm_bus_list;
23extern struct mutex nvdimm_bus_list_mutex;
Dan Williams62232e452015-06-08 14:27:06 -040024extern int nvdimm_major;
Dan Williamse6dfb2d2015-04-25 03:56:17 -040025
Dan Williamsb94d5232015-05-19 22:54:31 -040026struct nvdimm_bus {
27 struct nvdimm_bus_descriptor *nd_desc;
Dan Williamseaf96152015-05-01 13:11:27 -040028 wait_queue_head_t probe_wait;
Dan Williams3d880022015-05-31 15:02:11 -040029 struct module *module;
Dan Williams45def222015-04-26 19:26:48 -040030 struct list_head list;
Dan Williamsb94d5232015-05-19 22:54:31 -040031 struct device dev;
Dan Williamseaf96152015-05-01 13:11:27 -040032 int id, probe_active;
Dan Williams3d880022015-05-31 15:02:11 -040033 struct mutex reconfig_mutex;
Dan Williamsb94d5232015-05-19 22:54:31 -040034};
Dan Williams45def222015-04-26 19:26:48 -040035
Dan Williamse6dfb2d2015-04-25 03:56:17 -040036struct nvdimm {
37 unsigned long flags;
38 void *provider_data;
Dan Williams62232e452015-06-08 14:27:06 -040039 unsigned long *dsm_mask;
Dan Williamse6dfb2d2015-04-25 03:56:17 -040040 struct device dev;
Dan Williamseaf96152015-05-01 13:11:27 -040041 atomic_t busy;
Dan Williamse6dfb2d2015-04-25 03:56:17 -040042 int id;
43};
44
Dan Williams3d880022015-05-31 15:02:11 -040045bool is_nvdimm(struct device *dev);
Dan Williams3d880022015-05-31 15:02:11 -040046bool is_nd_pmem(struct device *dev);
Ross Zwisler047fc8a2015-06-25 04:21:02 -040047bool is_nd_blk(struct device *dev);
Dan Williamse6dfb2d2015-04-25 03:56:17 -040048struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev);
Dan Williams45def222015-04-26 19:26:48 -040049int __init nvdimm_bus_init(void);
Dan Williams4d88a972015-05-31 14:41:48 -040050void nvdimm_bus_exit(void);
Dan Williamseaf96152015-05-01 13:11:27 -040051void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
Dan Williams1b40e092015-05-01 13:34:01 -040052struct nd_region;
53void nd_region_create_blk_seed(struct nd_region *nd_region);
Dan Williams8c2f7e82015-06-25 04:20:04 -040054void nd_region_create_btt_seed(struct nd_region *nd_region);
Dan Williamseaf96152015-05-01 13:11:27 -040055void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
Dan Williams45def222015-04-26 19:26:48 -040056int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
57void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
Dan Williams4d88a972015-05-31 14:41:48 -040058void nd_synchronize(void);
Dan Williams1f7df6f2015-06-09 20:13:14 -040059int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus);
60int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus);
Dan Williamseaf96152015-05-01 13:11:27 -040061int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus);
Dan Williams8c2f7e82015-06-25 04:20:04 -040062void __nd_device_register(struct device *dev);
Dan Williams1f7df6f2015-06-09 20:13:14 -040063int nd_match_dimm(struct device *dev, void *data);
Dan Williamsbf9bccc2015-06-17 17:14:46 -040064struct nd_label_id;
65char *nd_label_gen_id(struct nd_label_id *label_id, u8 *uuid, u32 flags);
66bool nd_is_uuid_unique(struct device *dev, u8 *uuid);
67struct nd_region;
68struct nvdimm_drvdata;
69struct nd_mapping;
70resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region,
71 struct nd_mapping *nd_mapping, resource_size_t *overlap);
Dan Williams1b40e092015-05-01 13:34:01 -040072resource_size_t nd_blk_available_dpa(struct nd_mapping *nd_mapping);
Dan Williamsbf9bccc2015-06-17 17:14:46 -040073resource_size_t nd_region_available_dpa(struct nd_region *nd_region);
74resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd,
75 struct nd_label_id *label_id);
Dan Williams1b40e092015-05-01 13:34:01 -040076struct nd_mapping;
77struct resource *nsblk_add_resource(struct nd_region *nd_region,
78 struct nvdimm_drvdata *ndd, struct nd_namespace_blk *nsblk,
79 resource_size_t start);
Dan Williams0ba1c632015-05-30 12:35:36 -040080int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd);
Dan Williamsbf9bccc2015-06-17 17:14:46 -040081void get_ndd(struct nvdimm_drvdata *ndd);
Dan Williams8c2f7e82015-06-25 04:20:04 -040082resource_size_t __nvdimm_namespace_capacity(struct nd_namespace_common *ndns);
Dan Williamse1455742015-07-30 17:57:47 -040083void nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
84void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
85bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
86 struct nd_namespace_common **_ndns);
87bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
88 struct nd_namespace_common **_ndns);
89ssize_t nd_namespace_store(struct device *dev,
90 struct nd_namespace_common **_ndns, const char *buf,
91 size_t len);
Dan Williamsb94d5232015-05-19 22:54:31 -040092#endif /* __ND_CORE_H__ */