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Linux/include/acpi/apei.h

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  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 void arch_apei_flush_tlb_one(unsigned long addr);
 55 
 56 #endif
 57 #endif
 58 

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