tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
22extern struct list_head nvdimm_bus_list;
23extern struct mutex nvdimm_bus_list_mutex;
24extern int nvdimm_major;
25
26struct 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
37struct 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
46bool is_nvdimm(struct device *dev);
47bool is_nd_pmem(struct device *dev);
48bool is_nd_blk(struct device *dev);
49struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev);
50int __init nvdimm_bus_init(void);
51void nvdimm_bus_exit(void);
52void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
53struct nd_region;
54void nd_region_create_blk_seed(struct nd_region *nd_region);
55void nd_region_create_btt_seed(struct nd_region *nd_region);
56void nd_region_create_pfn_seed(struct nd_region *nd_region);
57void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
58int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
59void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
60void nd_synchronize(void);
61int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus);
62int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus);
63int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus);
64void __nd_device_register(struct device *dev);
65int nd_match_dimm(struct device *dev, void *data);
66struct nd_label_id;
67char *nd_label_gen_id(struct nd_label_id *label_id, u8 *uuid, u32 flags);
68bool nd_is_uuid_unique(struct device *dev, u8 *uuid);
69struct nd_region;
70struct nvdimm_drvdata;
71struct nd_mapping;
72resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region,
73 struct nd_mapping *nd_mapping, resource_size_t *overlap);
74resource_size_t nd_blk_available_dpa(struct nd_mapping *nd_mapping);
75resource_size_t nd_region_available_dpa(struct nd_region *nd_region);
76resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd,
77 struct nd_label_id *label_id);
78struct nd_mapping;
79struct resource *nsblk_add_resource(struct nd_region *nd_region,
80 struct nvdimm_drvdata *ndd, struct nd_namespace_blk *nsblk,
81 resource_size_t start);
82int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd);
83void get_ndd(struct nvdimm_drvdata *ndd);
84resource_size_t __nvdimm_namespace_capacity(struct nd_namespace_common *ndns);
85void nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
86void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
87bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
88 struct nd_namespace_common **_ndns);
89bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
90 struct nd_namespace_common **_ndns);
91ssize_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__ */