#ifndef _ASM_MCE_H

#define _ASM_MCE_H 1

#include <asm/ioctls.h>

#include <asm/types.h>

/* 

 * Machine Check support for x86

 */

#define MCG_CTL_P        (1UL<<8)   /* MCG_CAP register available */

#define MCG_STATUS_RIPV  (1UL<<0)   /* restart ip valid */

#define MCG_STATUS_EIPV  (1UL<<1)   /* eip points to correct instruction */

#define MCG_STATUS_MCIP  (1UL<<2)   /* machine check in progress */

#define MCI_STATUS_VAL   (1UL<<63)  /* valid error */

#define MCI_STATUS_OVER  (1UL<<62)  /* previous errors lost */

#define MCI_STATUS_UC    (1UL<<61)  /* uncorrected error */

#define MCI_STATUS_EN    (1UL<<60)  /* error enabled */

#define MCI_STATUS_MISCV (1UL<<59)  /* misc error reg. valid */

#define MCI_STATUS_ADDRV (1UL<<58)  /* addr reg. valid */

#define MCI_STATUS_PCC   (1UL<<57)  /* processor context corrupt */

/* Fields are zero when not available */

struct mce {

	__u64 status;

	__u64 misc;

	__u64 addr;

	__u64 mcgstatus;

	__u64 rip;	

	__u64 tsc;	/* cpu time stamp counter */

	__u64 res1;	/* for future extension */	

	__u64 res2;	/* dito. */

	__u8  cs;		/* code segment */

	__u8  bank;	/* machine check bank */

	__u8  cpu;	/* cpu that raised the error */

	__u8  finished;   /* entry is valid */

	__u32 pad;   

};

/* 

 * This structure contains all data related to the MCE log.

 * Also carries a signature to make it easier to find from external debugging tools.

 * Each entry is only valid when its finished flag is set.

 */

#define MCE_LOG_LEN 32

struct mce_log { 

	char signature[12]; /* "MACHINECHECK" */ 

	unsigned len;  	    /* = MCE_LOG_LEN */ 

	unsigned next;

	unsigned flags;

	unsigned pad0; 

	struct mce entry[MCE_LOG_LEN];

};

#define MCE_OVERFLOW 0		/* bit 0 in flags means overflow */

#define MCE_LOG_SIGNATURE 	"MACHINECHECK"

#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)

/* Software defined banks */

#define MCE_EXTENDED_BANK	128

#define MCE_THERMAL_BANK	MCE_EXTENDED_BANK + 0

#define K8_MCE_THRESHOLD_BASE      (MCE_EXTENDED_BANK + 1)      /* MCE_AMD */

#define K8_MCE_THRESHOLD_BANK_0    (MCE_THRESHOLD_BASE + 0 * 9)

#define K8_MCE_THRESHOLD_BANK_1    (MCE_THRESHOLD_BASE + 1 * 9)

#define K8_MCE_THRESHOLD_BANK_2    (MCE_THRESHOLD_BASE + 2 * 9)

#define K8_MCE_THRESHOLD_BANK_3    (MCE_THRESHOLD_BASE + 3 * 9)

#define K8_MCE_THRESHOLD_BANK_4    (MCE_THRESHOLD_BASE + 4 * 9)

#define K8_MCE_THRESHOLD_BANK_5    (MCE_THRESHOLD_BASE + 5 * 9)

#define K8_MCE_THRESHOLD_DRAM_ECC  (MCE_THRESHOLD_BANK_4 + 0)

#ifdef __KERNEL__

#include <asm/atomic.h>

void mce_log(struct mce *m);

DECLARE_PER_CPU(struct sys_device, device_mce);

#ifdef CONFIG_X86_MCE_INTEL

void mce_intel_feature_init(struct cpuinfo_x86 *c);

#else

static inline void mce_intel_feature_init(struct cpuinfo_x86 *c)

{

}

#endif

#ifdef CONFIG_X86_MCE_AMD

void mce_amd_feature_init(struct cpuinfo_x86 *c);

#else

static inline void mce_amd_feature_init(struct cpuinfo_x86 *c)

{

}

#endif

extern atomic_t mce_entry;

#endif

#endif