1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 #ifndef GHES_H <<
3 #define GHES_H <<
4 <<
5 #include <acpi/apei.h> 1 #include <acpi/apei.h>
6 #include <acpi/hed.h> 2 #include <acpi/hed.h>
7 3
8 /* 4 /*
9 * One struct ghes is created for each generic 5 * One struct ghes is created for each generic hardware error source.
10 * It provides the context for APEI hardware e 6 * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
11 * handler. 7 * handler.
12 * 8 *
13 * estatus: memory buffer for error status blo 9 * estatus: memory buffer for error status block, allocated during
14 * HEST parsing. 10 * HEST parsing.
15 */ 11 */
>> 12 #define GHES_TO_CLEAR 0x0001
16 #define GHES_EXITING 0x0002 13 #define GHES_EXITING 0x0002
17 14
18 struct ghes { 15 struct ghes {
19 union { !! 16 struct acpi_hest_generic *generic;
20 struct acpi_hest_generic *gene <<
21 struct acpi_hest_generic_v2 *g <<
22 }; <<
23 struct acpi_hest_generic_status *estat 17 struct acpi_hest_generic_status *estatus;
>> 18 u64 buffer_paddr;
24 unsigned long flags; 19 unsigned long flags;
25 union { 20 union {
26 struct list_head list; 21 struct list_head list;
27 struct timer_list timer; 22 struct timer_list timer;
28 unsigned int irq; 23 unsigned int irq;
29 }; 24 };
30 struct device *dev; <<
31 struct list_head elist; <<
32 }; 25 };
33 26
34 struct ghes_estatus_node { 27 struct ghes_estatus_node {
35 struct llist_node llnode; 28 struct llist_node llnode;
36 struct acpi_hest_generic *generic; 29 struct acpi_hest_generic *generic;
37 struct ghes *ghes; 30 struct ghes *ghes;
38 <<
39 int task_work_cpu; <<
40 struct callback_head task_work; <<
41 }; 31 };
42 32
43 struct ghes_estatus_cache { 33 struct ghes_estatus_cache {
44 u32 estatus_len; 34 u32 estatus_len;
45 atomic_t count; 35 atomic_t count;
46 struct acpi_hest_generic *generic; 36 struct acpi_hest_generic *generic;
47 unsigned long long time_in; 37 unsigned long long time_in;
48 struct rcu_head rcu; 38 struct rcu_head rcu;
49 }; 39 };
50 40
51 enum { 41 enum {
52 GHES_SEV_NO = 0x0, 42 GHES_SEV_NO = 0x0,
53 GHES_SEV_CORRECTED = 0x1, 43 GHES_SEV_CORRECTED = 0x1,
54 GHES_SEV_RECOVERABLE = 0x2, 44 GHES_SEV_RECOVERABLE = 0x2,
55 GHES_SEV_PANIC = 0x3, 45 GHES_SEV_PANIC = 0x3,
56 }; 46 };
57 47
58 #ifdef CONFIG_ACPI_APEI_GHES !! 48 /* From drivers/edac/ghes_edac.c */
59 /** <<
60 * ghes_register_vendor_record_notifier - regi <<
61 * records that the kernel would otherwise ign <<
62 * @nb: pointer to the notifier_block structur <<
63 * <<
64 * return 0 : SUCCESS, non-zero : FAIL <<
65 */ <<
66 int ghes_register_vendor_record_notifier(struc <<
67 <<
68 /** <<
69 * ghes_unregister_vendor_record_notifier - un <<
70 * registered vendor record notifier. <<
71 * @nb: pointer to the notifier_block structur <<
72 */ <<
73 void ghes_unregister_vendor_record_notifier(st <<
74 <<
75 struct list_head *ghes_get_devices(void); <<
76 <<
77 void ghes_estatus_pool_region_free(unsigned lo <<
78 #else <<
79 static inline struct list_head *ghes_get_devic <<
80 <<
81 static inline void ghes_estatus_pool_region_fr <<
82 #endif <<
83 <<
84 int ghes_estatus_pool_init(unsigned int num_gh <<
85 49
86 static inline int acpi_hest_get_version(struct !! 50 #ifdef CONFIG_EDAC_GHES
87 { !! 51 void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
88 return gdata->revision >> 8; !! 52 struct cper_sec_mem_err *mem_err);
89 } <<
90 53
91 static inline void *acpi_hest_get_payload(stru !! 54 int ghes_edac_register(struct ghes *ghes, struct device *dev);
92 { <<
93 if (acpi_hest_get_version(gdata) >= 3) <<
94 return (void *)(((struct acpi_ <<
95 55
96 return gdata + 1; !! 56 void ghes_edac_unregister(struct ghes *ghes);
97 } <<
98 <<
99 static inline int acpi_hest_get_error_length(s <<
100 { <<
101 return ((struct acpi_hest_generic_data <<
102 } <<
103 57
104 static inline int acpi_hest_get_size(struct ac !! 58 #else
>> 59 static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
>> 60 struct cper_sec_mem_err *mem_err)
105 { 61 {
106 if (acpi_hest_get_version(gdata) >= 3) <<
107 return sizeof(struct acpi_hest <<
108 <<
109 return sizeof(struct acpi_hest_generic <<
110 } 62 }
111 63
112 static inline int acpi_hest_get_record_size(st !! 64 static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
113 { 65 {
114 return (acpi_hest_get_size(gdata) + ac !! 66 return 0;
115 } 67 }
116 68
117 static inline void *acpi_hest_get_next(struct !! 69 static inline void ghes_edac_unregister(struct ghes *ghes)
118 { 70 {
119 return (void *)(gdata) + acpi_hest_get <<
120 } 71 }
121 <<
122 #define apei_estatus_for_each_section(estatus, <<
123 for (section = (struct acpi_hest_gener <<
124 (void *)section - (void *)(estatu <<
125 section = acpi_hest_get_next(sect <<
126 <<
127 #ifdef CONFIG_ACPI_APEI_SEA <<
128 int ghes_notify_sea(void); <<
129 #else <<
130 static inline int ghes_notify_sea(void) { retu <<
131 #endif 72 #endif
132 <<
133 struct notifier_block; <<
134 extern void ghes_register_report_chain(struct <<
135 extern void ghes_unregister_report_chain(struc <<
136 #endif /* GHES_H */ <<
137 73
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.