^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef GHES_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define GHES_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <acpi/apei.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <acpi/hed.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * One struct ghes is created for each generic hardware error source.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * estatus: memory buffer for error status block, allocated during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * HEST parsing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define GHES_EXITING 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct ghes {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct acpi_hest_generic *generic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct acpi_hest_generic_v2 *generic_v2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct acpi_hest_generic_status *estatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct timer_list timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct ghes_estatus_node {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct llist_node llnode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct acpi_hest_generic *generic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct ghes *ghes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) int task_work_cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct callback_head task_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct ghes_estatus_cache {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) u32 estatus_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) atomic_t count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct acpi_hest_generic *generic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) unsigned long long time_in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) GHES_SEV_NO = 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) GHES_SEV_CORRECTED = 0x1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) GHES_SEV_RECOVERABLE = 0x2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) GHES_SEV_PANIC = 0x3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #ifdef CONFIG_ACPI_APEI_GHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * ghes_register_vendor_record_notifier - register a notifier for vendor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * records that the kernel would otherwise ignore.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @nb: pointer to the notifier_block structure of the event handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * return 0 : SUCCESS, non-zero : FAIL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int ghes_register_vendor_record_notifier(struct notifier_block *nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * ghes_unregister_vendor_record_notifier - unregister the previously
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * registered vendor record notifier.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * @nb: pointer to the notifier_block structure of the vendor record handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void ghes_unregister_vendor_record_notifier(struct notifier_block *nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int ghes_estatus_pool_init(int num_ghes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* From drivers/edac/ghes_edac.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #ifdef CONFIG_EDAC_GHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int ghes_edac_register(struct ghes *ghes, struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void ghes_edac_unregister(struct ghes *ghes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static inline void ghes_edac_report_mem_error(int sev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct cper_sec_mem_err *mem_err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static inline void ghes_edac_unregister(struct ghes *ghes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return gdata->revision >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (acpi_hest_get_version(gdata) >= 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return gdata + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return ((struct acpi_hest_generic_data *)(gdata))->error_data_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (acpi_hest_get_version(gdata) >= 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return sizeof(struct acpi_hest_generic_data_v300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return sizeof(struct acpi_hest_generic_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return (void *)(gdata) + acpi_hest_get_record_size(gdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #define apei_estatus_for_each_section(estatus, section) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) for (section = (struct acpi_hest_generic_data *)(estatus + 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) (void *)section - (void *)(estatus + 1) < estatus->data_length; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) section = acpi_hest_get_next(section))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #ifdef CONFIG_ACPI_APEI_SEA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) int ghes_notify_sea(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static inline int ghes_notify_sea(void) { return -ENOENT; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #endif /* GHES_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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