Commit | Line | Data |
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a643ce20 HY |
1 | /* |
2 | * apei-internal.h - ACPI Platform Error Interface internal | |
3 | * definations. | |
4 | */ | |
5 | ||
6 | #ifndef APEI_INTERNAL_H | |
7 | #define APEI_INTERNAL_H | |
8 | ||
06d65dea | 9 | #include <linux/cper.h> |
34ddeb03 HY |
10 | #include <linux/acpi.h> |
11 | #include <linux/acpi_io.h> | |
06d65dea | 12 | |
a643ce20 HY |
13 | struct apei_exec_context; |
14 | ||
15 | typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx, | |
16 | struct acpi_whea_header *entry); | |
17 | ||
18 | #define APEI_EXEC_INS_ACCESS_REGISTER 0x0001 | |
19 | ||
20 | struct apei_exec_ins_type { | |
21 | u32 flags; | |
22 | apei_exec_ins_func_t run; | |
23 | }; | |
24 | ||
25 | struct apei_exec_context { | |
26 | u32 ip; | |
27 | u64 value; | |
28 | u64 var1; | |
29 | u64 var2; | |
30 | u64 src_base; | |
31 | u64 dst_base; | |
32 | struct apei_exec_ins_type *ins_table; | |
33 | u32 instructions; | |
34 | struct acpi_whea_header *action_table; | |
35 | u32 entries; | |
36 | }; | |
37 | ||
38 | void apei_exec_ctx_init(struct apei_exec_context *ctx, | |
39 | struct apei_exec_ins_type *ins_table, | |
40 | u32 instructions, | |
41 | struct acpi_whea_header *action_table, | |
42 | u32 entries); | |
43 | ||
44 | static inline void apei_exec_ctx_set_input(struct apei_exec_context *ctx, | |
45 | u64 input) | |
46 | { | |
47 | ctx->value = input; | |
48 | } | |
49 | ||
50 | static inline u64 apei_exec_ctx_get_output(struct apei_exec_context *ctx) | |
51 | { | |
52 | return ctx->value; | |
53 | } | |
54 | ||
eecf2f71 HY |
55 | int __apei_exec_run(struct apei_exec_context *ctx, u8 action, bool optional); |
56 | ||
57 | static inline int apei_exec_run(struct apei_exec_context *ctx, u8 action) | |
58 | { | |
59 | return __apei_exec_run(ctx, action, 0); | |
60 | } | |
61 | ||
62 | /* It is optional whether the firmware provides the action */ | |
63 | static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 action) | |
64 | { | |
65 | return __apei_exec_run(ctx, action, 1); | |
66 | } | |
a643ce20 HY |
67 | |
68 | /* Common instruction implementation */ | |
69 | ||
70 | /* IP has been set in instruction function */ | |
71 | #define APEI_EXEC_SET_IP 1 | |
72 | ||
34ddeb03 HY |
73 | int apei_map_generic_address(struct acpi_generic_address *reg); |
74 | ||
75 | static inline void apei_unmap_generic_address(struct acpi_generic_address *reg) | |
76 | { | |
77 | acpi_os_unmap_generic_address(reg); | |
78 | } | |
79 | ||
700130b4 MS |
80 | int apei_read(u64 *val, struct acpi_generic_address *reg); |
81 | int apei_write(u64 val, struct acpi_generic_address *reg); | |
82 | ||
a643ce20 HY |
83 | int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val); |
84 | int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val); | |
85 | int apei_exec_read_register(struct apei_exec_context *ctx, | |
86 | struct acpi_whea_header *entry); | |
87 | int apei_exec_read_register_value(struct apei_exec_context *ctx, | |
88 | struct acpi_whea_header *entry); | |
89 | int apei_exec_write_register(struct apei_exec_context *ctx, | |
90 | struct acpi_whea_header *entry); | |
91 | int apei_exec_write_register_value(struct apei_exec_context *ctx, | |
92 | struct acpi_whea_header *entry); | |
93 | int apei_exec_noop(struct apei_exec_context *ctx, | |
94 | struct acpi_whea_header *entry); | |
95 | int apei_exec_pre_map_gars(struct apei_exec_context *ctx); | |
96 | int apei_exec_post_unmap_gars(struct apei_exec_context *ctx); | |
97 | ||
98 | struct apei_resources { | |
99 | struct list_head iomem; | |
100 | struct list_head ioport; | |
101 | }; | |
102 | ||
103 | static inline void apei_resources_init(struct apei_resources *resources) | |
104 | { | |
105 | INIT_LIST_HEAD(&resources->iomem); | |
106 | INIT_LIST_HEAD(&resources->ioport); | |
107 | } | |
108 | ||
109 | void apei_resources_fini(struct apei_resources *resources); | |
fdea163d HY |
110 | int apei_resources_add(struct apei_resources *resources, |
111 | unsigned long start, unsigned long size, | |
112 | bool iomem); | |
a643ce20 HY |
113 | int apei_resources_sub(struct apei_resources *resources1, |
114 | struct apei_resources *resources2); | |
115 | int apei_resources_request(struct apei_resources *resources, | |
116 | const char *desc); | |
117 | void apei_resources_release(struct apei_resources *resources); | |
118 | int apei_exec_collect_resources(struct apei_exec_context *ctx, | |
119 | struct apei_resources *resources); | |
120 | ||
121 | struct dentry; | |
122 | struct dentry *apei_get_debugfs_dir(void); | |
06d65dea HY |
123 | |
124 | #define apei_estatus_for_each_section(estatus, section) \ | |
125 | for (section = (struct acpi_hest_generic_data *)(estatus + 1); \ | |
126 | (void *)section - (void *)estatus < estatus->data_length; \ | |
127 | section = (void *)(section+1) + section->error_data_length) | |
128 | ||
129 | static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus) | |
130 | { | |
131 | if (estatus->raw_data_length) | |
132 | return estatus->raw_data_offset + \ | |
133 | estatus->raw_data_length; | |
134 | else | |
135 | return sizeof(*estatus) + estatus->data_length; | |
136 | } | |
137 | ||
f59c55d0 HY |
138 | void apei_estatus_print(const char *pfx, |
139 | const struct acpi_hest_generic_status *estatus); | |
06d65dea HY |
140 | int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus); |
141 | int apei_estatus_check(const struct acpi_hest_generic_status *estatus); | |
9fb0bfe1 HY |
142 | |
143 | int apei_osc_setup(void); | |
a643ce20 | 144 | #endif |