linux/drivers/edac/mce_amd.h

#ifndef _EDAC_MCE_AMD_H
#define _EDAC_MCE_AMD_H

#include <linux/notifier.h>

#include <asm/mce.h>

#define ERROR_CODE(x)			((x) & 0xffff)
#define EXT_ERROR_CODE(x)		(((x) >> 16) & 0x1f)
#define EXT_ERR_MSG(x)			ext_msgs[EXT_ERROR_CODE(x)]

#define LOW_SYNDROME(x)			(((x) >> 15) & 0xff)
#define HIGH_SYNDROME(x)		(((x) >> 24) & 0xff)

#define TLB_ERROR(x)			(((x) & 0xFFF0) == 0x0010)
#define MEM_ERROR(x)			(((x) & 0xFF00) == 0x0100)
#define BUS_ERROR(x)			(((x) & 0xF800) == 0x0800)

#define TT(x)				(((x) >> 2) & 0x3)
#define TT_MSG(x)			tt_msgs[TT(x)]
#define II(x)				(((x) >> 2) & 0x3)
#define II_MSG(x)			ii_msgs[II(x)]
#define LL(x)				(((x) >> 0) & 0x3)
#define LL_MSG(x)			ll_msgs[LL(x)]
#define TO(x)				(((x) >> 8) & 0x1)
#define TO_MSG(x)			to_msgs[TO(x)]
#define PP(x)				(((x) >> 9) & 0x3)
#define PP_MSG(x)			pp_msgs[PP(x)]

#define RRRR(x)				(((x) >> 4) & 0xf)
#define RRRR_MSG(x)			((RRRR(x) < 9) ?  rrrr_msgs[RRRR(x)] : "Wrong R4!")

#define K8_NBSH				0x4C

#define K8_NBSH_VALID_BIT		BIT(31)
#define K8_NBSH_OVERFLOW		BIT(30)
#define K8_NBSH_UC_ERR			BIT(29)
#define K8_NBSH_ERR_EN			BIT(28)
#define K8_NBSH_MISCV			BIT(27)
#define K8_NBSH_VALID_ERROR_ADDR	BIT(26)
#define K8_NBSH_PCC			BIT(25)
#define K8_NBSH_ERR_CPU_VAL		BIT(24)
#define K8_NBSH_CECC			BIT(14)
#define K8_NBSH_UECC			BIT(13)
#define K8_NBSH_ERR_SCRUBER		BIT(8)

enum tt_ids {
	TT_INSTR = 0,
	TT_DATA,
	TT_GEN,
	TT_RESV,
};

enum ll_ids {
	LL_RESV = 0,
	LL_L1,
	LL_L2,
	LL_LG,
};

enum ii_ids {
	II_MEM = 0,
	II_RESV,
	II_IO,
	II_GEN,
};

enum rrrr_ids {
	R4_GEN	= 0,
	R4_RD,
	R4_WR,
	R4_DRD,
	R4_DWR,
	R4_IRD,
	R4_PREF,
	R4_EVICT,
	R4_SNOOP,
};

extern const char *tt_msgs[];
extern const char *ll_msgs[];
extern const char *rrrr_msgs[];
extern const char *pp_msgs[];
extern const char *to_msgs[];
extern const char *ii_msgs[];
extern const char *ext_msgs[];

/*
 * relevant NB regs
 */
struct err_regs {
	u32 nbcfg;
	u32 nbsh;
	u32 nbsl;
	u32 nbeah;
	u32 nbeal;
};

/*
 * per-family decoder ops
 */
struct amd_decoder_ops {
	bool (*dc_mce)(u16);
};

void amd_report_gart_errors(bool);
void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32));
void amd_unregister_ecc_decoder(void (*f)(int, struct mce *, u32));
void amd_decode_nb_mce(int, struct mce *, u32);
int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data);

#endif /* _EDAC_MCE_AMD_H */