include/acpi/apei.h

   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 #else
  31 #define ghes_disable 1
  32 #endif
  33
  34 #ifdef CONFIG_ACPI_APEI
  35 void __init acpi_hest_init(void);
  36 #else
  37 static inline void acpi_hest_init(void) { return; }
  38 #endif
  39
  40 typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
  41 int apei_hest_parse(apei_hest_func_t func, void *data);
  42
  43 int erst_write(const struct cper_record_header *record);
  44 ssize_t erst_get_record_count(void);
  45 int erst_get_record_id_begin(int *pos);
  46 int erst_get_record_id_next(int *pos, u64 *record_id);
  47 void erst_get_record_id_end(void);
  48 ssize_t erst_read(u64 record_id, struct cper_record_header *record,
  49                   size_t buflen);
  50 int erst_clear(u64 record_id);
  51
  52 int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data);
  53 void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
  54
  55 #endif
  56 #endif