1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * apei.h - ACPI Platform Error Interface 4 */ 5 6 #ifndef ACPI_APEI_H 7 #define ACPI_APEI_H 8 9 #include <linux/acpi.h> 10 #include <linux/cper.h> 11 #include <asm/ioctls.h> 12 13 #define APEI_ERST_INVALID_RECORD_ID 0xffffffffffffffffULL 14 15 #define APEI_ERST_CLEAR_RECORD _IOW('E', 1, u64) 16 #define APEI_ERST_GET_RECORD_COUNT _IOR('E', 2, u32) 17 18 #ifdef __KERNEL__ 19 20 enum hest_status { 21 HEST_ENABLED, 22 HEST_DISABLED, 23 HEST_NOT_FOUND, 24 }; 25 26 extern int hest_disable; 27 extern int erst_disable; 28 #ifdef CONFIG_ACPI_APEI_GHES 29 extern bool ghes_disable; 30 void __init acpi_ghes_init(void); 31 #else 32 #define ghes_disable 1 33 static inline void acpi_ghes_init(void) { } 34 #endif 35 36 #ifdef CONFIG_ACPI_APEI 37 void __init acpi_hest_init(void); 38 #else 39 static inline void acpi_hest_init(void) { } 40 #endif 41 42 int erst_write(const struct cper_record_header *record); 43 ssize_t erst_get_record_count(void); 44 int erst_get_record_id_begin(int *pos); 45 int erst_get_record_id_next(int *pos, u64 *record_id); 46 void erst_get_record_id_end(void); 47 ssize_t erst_read(u64 record_id, struct cper_record_header *record, 48 size_t buflen); 49 ssize_t erst_read_record(u64 record_id, struct cper_record_header *record, 50 size_t buflen, size_t recordlen, const guid_t *creatorid); 51 int erst_clear(u64 record_id); 52 53 int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data); 54 void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err); 55 56 #endif 57 #endif 58