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
20enum hest_status {
21 HEST_ENABLED,
22 HEST_DISABLED,
23 HEST_NOT_FOUND,
24};
25
26extern int hest_disable;
27extern int erst_disable;
28#ifdef CONFIG_ACPI_APEI_GHES
29extern bool ghes_disable;
30#else
31#define ghes_disable 1
32#endif
33
34#ifdef CONFIG_ACPI_APEI
35void __init acpi_hest_init(void);
36#else
37static inline void acpi_hest_init(void) { return; }
38#endif
39
40typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
41int apei_hest_parse(apei_hest_func_t func, void *data);
42
43int erst_write(const struct cper_record_header *record);
44ssize_t erst_get_record_count(void);
45int erst_get_record_id_begin(int *pos);
46int erst_get_record_id_next(int *pos, u64 *record_id);
47void erst_get_record_id_end(void);
48ssize_t erst_read(u64 record_id, struct cper_record_header *record,
49 size_t buflen);
50int erst_clear(u64 record_id);
51
52int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data);
53void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
54
55#endif
56#endif
57