1 /* 2 * apei.h - ACPI Platform Error Interface 3 */ 4 5 #ifndef ACPI_APEI_H 6 #define ACPI_APEI_H 7 8 #include <linux/acpi.h> 9 #include <linux/cper.h> 10 #include <asm/ioctls.h> 11 12 #define APEI_ERST_INVALID_RECORD_ID 0xffffffffffffffffULL 13 14 #define APEI_ERST_CLEAR_RECORD _IOW('E', 1, u64) 15 #define APEI_ERST_GET_RECORD_COUNT _IOR('E', 2, u32) 16 17 #ifdef __KERNEL__ 18 19 extern bool hest_disable; 20 extern int erst_disable; 21 #ifdef CONFIG_ACPI_APEI_GHES 22 extern bool ghes_disable; 23 #else 24 #define ghes_disable 1 25 #endif 26 27 #ifdef CONFIG_ACPI_APEI 28 void __init acpi_hest_init(void); 29 #else 30 static inline void acpi_hest_init(void) { return; } 31 #endif 32 33 typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); 34 int apei_hest_parse(apei_hest_func_t func, void *data); 35 36 int erst_write(const struct cper_record_header *record); 37 ssize_t erst_get_record_count(void); 38 int erst_get_record_id_begin(int *pos); 39 int erst_get_record_id_next(int *pos, u64 *record_id); 40 void erst_get_record_id_end(void); 41 ssize_t erst_read(u64 record_id, struct cper_record_header *record, 42 size_t buflen); 43 int erst_clear(u64 record_id); 44 45 #endif 46 #endif 47