2 * Copyright (c) 2017 The FreeBSD Foundation
4 * Copyright (c) 2018, 2019 Intel Corporation
6 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
7 * under sponsorship from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #ifndef __DEV_NVDIMM_VAR_H__
34 #define __DEV_NVDIMM_VAR_H__
36 typedef uint32_t nfit_handle_t;
38 enum nvdimm_root_ivar {
39 NVDIMM_ROOT_IVAR_ACPI_HANDLE,
40 NVDIMM_ROOT_IVAR_DEVICE_HANDLE,
43 __BUS_ACCESSOR(nvdimm_root, acpi_handle, NVDIMM_ROOT, ACPI_HANDLE, ACPI_HANDLE)
44 __BUS_ACCESSOR(nvdimm_root, device_handle, NVDIMM_ROOT, DEVICE_HANDLE,
47 struct nvdimm_root_dev {
48 SLIST_HEAD(, SPA_mapping) spas;
53 nfit_handle_t nv_handle;
54 uint64_t **nv_flush_addr;
55 int nv_flush_addr_cnt;
58 enum SPA_mapping_type {
59 SPA_TYPE_VOLATILE_MEMORY = 0,
60 SPA_TYPE_PERSISTENT_MEMORY = 1,
61 SPA_TYPE_CONTROL_REGION = 2,
62 SPA_TYPE_DATA_REGION = 3,
63 SPA_TYPE_VOLATILE_VIRTUAL_DISK = 4,
64 SPA_TYPE_VOLATILE_VIRTUAL_CD = 5,
65 SPA_TYPE_PERSISTENT_VIRTUAL_DISK= 6,
66 SPA_TYPE_PERSISTENT_VIRTUAL_CD = 7,
67 SPA_TYPE_UNKNOWN = 127,
71 SLIST_ENTRY(SPA_mapping) link;
72 enum SPA_mapping_type spa_type;
75 uint64_t spa_phys_base;
77 uint64_t spa_efi_mem_flags;
81 struct g_provider *spa_p;
82 struct bio_queue_head spa_g_queue;
84 struct mtx spa_g_stat_mtx;
85 struct devstat *spa_g_devstat;
86 struct proc *spa_g_proc;
87 struct vm_object *spa_obj;
89 bool spa_g_proc_exiting;
92 MALLOC_DECLARE(M_NVDIMM);
94 void acpi_nfit_get_dimm_ids(ACPI_TABLE_NFIT *nfitbl, nfit_handle_t **listp,
96 void acpi_nfit_get_spa_range(ACPI_TABLE_NFIT *nfitbl, uint16_t range_index,
97 ACPI_NFIT_SYSTEM_ADDRESS **spa);
98 void acpi_nfit_get_spa_ranges(ACPI_TABLE_NFIT *nfitbl,
99 ACPI_NFIT_SYSTEM_ADDRESS ***listp, int *countp);
100 void acpi_nfit_get_region_mappings_by_spa_range(ACPI_TABLE_NFIT *nfitbl,
101 uint16_t spa_range_index, ACPI_NFIT_MEMORY_MAP ***listp, int *countp);
102 void acpi_nfit_get_control_region(ACPI_TABLE_NFIT *nfitbl,
103 uint16_t control_region_index, ACPI_NFIT_CONTROL_REGION **out);
104 void acpi_nfit_get_flush_addrs(ACPI_TABLE_NFIT *nfitbl, nfit_handle_t dimm,
105 uint64_t ***listp, int *countp);
106 enum SPA_mapping_type nvdimm_spa_type_from_uuid(struct uuid *);
107 struct nvdimm_dev *nvdimm_find_by_handle(nfit_handle_t nv_handle);
108 int nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr,
109 enum SPA_mapping_type spa_type);
110 void nvdimm_spa_fini(struct SPA_mapping *spa);
112 #endif /* __DEV_NVDIMM_VAR_H__ */