1 /* SPDX-License-Identifier: GPL-2.0 */
9 * One struct ghes is created for each generic hardware error source.
10 * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
13 * estatus: memory buffer for error status block, allocated during
16 #define GHES_EXITING 0x0002
20 struct acpi_hest_generic *generic;
21 struct acpi_hest_generic_v2 *generic_v2;
23 struct acpi_hest_generic_status *estatus;
26 struct list_head list;
27 struct timer_list timer;
32 struct ghes_estatus_node {
33 struct llist_node llnode;
34 struct acpi_hest_generic *generic;
38 struct callback_head task_work;
41 struct ghes_estatus_cache {
44 struct acpi_hest_generic *generic;
45 unsigned long long time_in;
51 GHES_SEV_CORRECTED = 0x1,
52 GHES_SEV_RECOVERABLE = 0x2,
56 #ifdef CONFIG_ACPI_APEI_GHES
58 * ghes_register_vendor_record_notifier - register a notifier for vendor
59 * records that the kernel would otherwise ignore.
60 * @nb: pointer to the notifier_block structure of the event handler.
62 * return 0 : SUCCESS, non-zero : FAIL
64 int ghes_register_vendor_record_notifier(struct notifier_block *nb);
67 * ghes_unregister_vendor_record_notifier - unregister the previously
68 * registered vendor record notifier.
69 * @nb: pointer to the notifier_block structure of the vendor record handler.
71 void ghes_unregister_vendor_record_notifier(struct notifier_block *nb);
74 int ghes_estatus_pool_init(unsigned int num_ghes);
76 /* From drivers/edac/ghes_edac.c */
78 #ifdef CONFIG_EDAC_GHES
79 void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
81 int ghes_edac_register(struct ghes *ghes, struct device *dev);
83 void ghes_edac_unregister(struct ghes *ghes);
86 static inline void ghes_edac_report_mem_error(int sev,
87 struct cper_sec_mem_err *mem_err)
91 static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
96 static inline void ghes_edac_unregister(struct ghes *ghes)
101 static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
103 return gdata->revision >> 8;
106 static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
108 if (acpi_hest_get_version(gdata) >= 3)
109 return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);
114 static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata)
116 return ((struct acpi_hest_generic_data *)(gdata))->error_data_length;
119 static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata)
121 if (acpi_hest_get_version(gdata) >= 3)
122 return sizeof(struct acpi_hest_generic_data_v300);
124 return sizeof(struct acpi_hest_generic_data);
127 static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata)
129 return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata));
132 static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
134 return (void *)(gdata) + acpi_hest_get_record_size(gdata);
137 #define apei_estatus_for_each_section(estatus, section) \
138 for (section = (struct acpi_hest_generic_data *)(estatus + 1); \
139 (void *)section - (void *)(estatus + 1) < estatus->data_length; \
140 section = acpi_hest_get_next(section))
142 #ifdef CONFIG_ACPI_APEI_SEA
143 int ghes_notify_sea(void);
145 static inline int ghes_notify_sea(void) { return -ENOENT; }