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1 | #ifndef GHES_H |
2 | #define GHES_H | |
3 | ||
40e06415 MCC |
4 | #include <acpi/apei.h> |
5 | #include <acpi/hed.h> | |
6 | ||
7 | /* | |
8 | * One struct ghes is created for each generic hardware error source. | |
9 | * It provides the context for APEI hardware error timer/IRQ/SCI/NMI | |
10 | * handler. | |
11 | * | |
12 | * estatus: memory buffer for error status block, allocated during | |
13 | * HEST parsing. | |
14 | */ | |
15 | #define GHES_TO_CLEAR 0x0001 | |
16 | #define GHES_EXITING 0x0002 | |
17 | ||
18 | struct ghes { | |
42aa5604 TB |
19 | union { |
20 | struct acpi_hest_generic *generic; | |
21 | struct acpi_hest_generic_v2 *generic_v2; | |
22 | }; | |
0a00fd5e | 23 | struct acpi_hest_generic_status *estatus; |
40e06415 MCC |
24 | u64 buffer_paddr; |
25 | unsigned long flags; | |
26 | union { | |
27 | struct list_head list; | |
28 | struct timer_list timer; | |
29 | unsigned int irq; | |
30 | }; | |
31 | }; | |
32 | ||
33 | struct ghes_estatus_node { | |
34 | struct llist_node llnode; | |
35 | struct acpi_hest_generic *generic; | |
21480547 | 36 | struct ghes *ghes; |
40e06415 MCC |
37 | }; |
38 | ||
39 | struct ghes_estatus_cache { | |
40 | u32 estatus_len; | |
41 | atomic_t count; | |
42 | struct acpi_hest_generic *generic; | |
43 | unsigned long long time_in; | |
44 | struct rcu_head rcu; | |
45 | }; | |
46 | ||
47 | enum { | |
48 | GHES_SEV_NO = 0x0, | |
49 | GHES_SEV_CORRECTED = 0x1, | |
50 | GHES_SEV_RECOVERABLE = 0x2, | |
51 | GHES_SEV_PANIC = 0x3, | |
52 | }; | |
21480547 MCC |
53 | |
54 | /* From drivers/edac/ghes_edac.c */ | |
55 | ||
56 | #ifdef CONFIG_EDAC_GHES | |
57 | void ghes_edac_report_mem_error(struct ghes *ghes, int sev, | |
58 | struct cper_sec_mem_err *mem_err); | |
59 | ||
60 | int ghes_edac_register(struct ghes *ghes, struct device *dev); | |
61 | ||
62 | void ghes_edac_unregister(struct ghes *ghes); | |
63 | ||
64 | #else | |
65 | static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev, | |
66 | struct cper_sec_mem_err *mem_err) | |
67 | { | |
68 | } | |
69 | ||
70 | static inline int ghes_edac_register(struct ghes *ghes, struct device *dev) | |
71 | { | |
72 | return 0; | |
73 | } | |
74 | ||
75 | static inline void ghes_edac_unregister(struct ghes *ghes) | |
76 | { | |
77 | } | |
78 | #endif | |
bbcc2e7b TB |
79 | |
80 | static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata) | |
81 | { | |
82 | return gdata->revision >> 8; | |
83 | } | |
84 | ||
85 | static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata) | |
86 | { | |
87 | if (acpi_hest_get_version(gdata) >= 3) | |
88 | return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1); | |
89 | ||
90 | return gdata + 1; | |
91 | } | |
92 | ||
93 | static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata) | |
94 | { | |
95 | return ((struct acpi_hest_generic_data *)(gdata))->error_data_length; | |
96 | } | |
97 | ||
98 | static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata) | |
99 | { | |
100 | if (acpi_hest_get_version(gdata) >= 3) | |
101 | return sizeof(struct acpi_hest_generic_data_v300); | |
102 | ||
103 | return sizeof(struct acpi_hest_generic_data); | |
104 | } | |
105 | ||
106 | static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata) | |
107 | { | |
108 | return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata)); | |
109 | } | |
110 | ||
111 | static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata) | |
112 | { | |
113 | return (void *)(gdata) + acpi_hest_get_record_size(gdata); | |
114 | } | |
7edda088 | 115 | |
c4335fdd | 116 | #define apei_estatus_for_each_section(estatus, section) \ |
117 | for (section = (struct acpi_hest_generic_data *)(estatus + 1); \ | |
118 | (void *)section - (void *)(estatus + 1) < estatus->data_length; \ | |
119 | section = acpi_hest_get_next(section)) | |
120 | ||
621f48e4 | 121 | int ghes_notify_sea(void); |
7edda088 TB |
122 | |
123 | #endif /* GHES_H */ |