/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_X86_MCE_H
#define _UAPI_ASM_X86_MCE_H

#include <linux/types.h>
#include <linux/ioctl.h>

/*
 * Fields are zero when not available. Also, this struct is shared with
 * userspace mcelog and thus must keep existing fields at current offsets.
 * Only add new, shared fields to the end of the structure.
 * Do not add vendor-specific fields.
 */
struct mce {
        __u64 status;           /* Bank's MCi_STATUS MSR */
        __u64 misc;             /* Bank's MCi_MISC MSR */
        __u64 addr;             /* Bank's MCi_ADDR MSR */
        __u64 mcgstatus;        /* Machine Check Global Status MSR */
        __u64 ip;               /* Instruction Pointer when the error happened */
        __u64 tsc;              /* CPU time stamp counter */
        __u64 time;             /* Wall time_t when error was detected */
        __u8  cpuvendor;        /* Kernel's X86_VENDOR enum */
        __u8  inject_flags;     /* Software inject flags */
        __u8  severity;         /* Error severity */
        __u8  pad;
        __u32 cpuid;            /* CPUID 1 EAX */
        __u8  cs;               /* Code segment */
        __u8  bank;             /* Machine check bank reporting the error */
        __u8  cpu;              /* CPU number; obsoleted by extcpu */
        __u8  finished;         /* Entry is valid */
        __u32 extcpu;           /* Linux CPU number that detected the error */
        __u32 socketid;         /* CPU socket ID */
        __u32 apicid;           /* CPU initial APIC ID */
        __u64 mcgcap;           /* MCGCAP MSR: machine check capabilities of CPU */
        __u64 synd;             /* MCA_SYND MSR: only valid on SMCA systems */
        __u64 ipid;             /* MCA_IPID MSR: only valid on SMCA systems */
        __u64 ppin;             /* Protected Processor Inventory Number */
        __u32 microcode;        /* Microcode revision */
        __u64 kflags;           /* Internal kernel use */
};

#define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
#define MCE_GET_LOG_LEN      _IOR('M', 2, int)
#define MCE_GETCLEAR_FLAGS   _IOR('M', 3, int)

#endif /* _UAPI_ASM_X86_MCE_H */