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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef GHES_H
2#define GHES_H
3
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
18struct ghes {
19 union {
20 struct acpi_hest_generic *generic;
21 struct acpi_hest_generic_v2 *generic_v2;
22 };
23 struct acpi_hest_generic_status *estatus;
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
33struct ghes_estatus_node {
34 struct llist_node llnode;
35 struct acpi_hest_generic *generic;
36 struct ghes *ghes;
37};
38
39struct 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
47enum {
48 GHES_SEV_NO = 0x0,
49 GHES_SEV_CORRECTED = 0x1,
50 GHES_SEV_RECOVERABLE = 0x2,
51 GHES_SEV_PANIC = 0x3,
52};
53
54/* From drivers/edac/ghes_edac.c */
55
56#ifdef CONFIG_EDAC_GHES
57void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
58 struct cper_sec_mem_err *mem_err);
59
60int ghes_edac_register(struct ghes *ghes, struct device *dev);
61
62void ghes_edac_unregister(struct ghes *ghes);
63
64#else
65static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
66 struct cper_sec_mem_err *mem_err)
67{
68}
69
70static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
71{
72 return 0;
73}
74
75static inline void ghes_edac_unregister(struct ghes *ghes)
76{
77}
78#endif
79
80static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
81{
82 return gdata->revision >> 8;
83}
84
85static 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
93static 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
98static 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
106static 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
111static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
112{
113 return (void *)(gdata) + acpi_hest_get_record_size(gdata);
114}
115
116int ghes_notify_sea(void);
117
118#endif /* GHES_H */