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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/drivers/edac/mce_amd.h
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#ifndef _EDAC_MCE_AMD_H

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#define _EDAC_MCE_AMD_H

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#include <linux/notifier.h>

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#include <asm/mce.h>

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#define BIT_64(n)			(U64_C(1) << (n))

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#define EC(x)				((x) & 0xffff)

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#define XEC(x, mask)			(((x) >> 16) & mask)

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

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

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#define TLB_ERROR(x)			(((x) & 0xFFF0) == 0x0010)

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#define MEM_ERROR(x)			(((x) & 0xFF00) == 0x0100)

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#define BUS_ERROR(x)			(((x) & 0xF800) == 0x0800)

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#define TT(x)				(((x) >> 2) & 0x3)

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#define TT_MSG(x)			tt_msgs[TT(x)]

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#define II(x)				(((x) >> 2) & 0x3)

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#define II_MSG(x)			ii_msgs[II(x)]

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#define LL(x)				((x) & 0x3)

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#define LL_MSG(x)			ll_msgs[LL(x)]

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#define TO(x)				(((x) >> 8) & 0x1)

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#define TO_MSG(x)			to_msgs[TO(x)]

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#define PP(x)				(((x) >> 9) & 0x3)

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#define PP_MSG(x)			pp_msgs[PP(x)]

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#define R4(x)				(((x) >> 4) & 0xf)

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#define R4_MSG(x)			((R4(x) < 9) ?  rrrr_msgs[R4(x)] : "Wrong R4!")

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/*

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 * F3x4C bits (MCi_STATUS' high half)

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 */

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#define NBSH_ERR_CPU_VAL		BIT(24)

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enum tt_ids {

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	TT_INSTR = 0,

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	TT_DATA,

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	TT_GEN,

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	TT_RESV,

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};

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enum ll_ids {

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	LL_RESV = 0,

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	LL_L1,

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	LL_L2,

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	LL_LG,

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};

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enum ii_ids {

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	II_MEM = 0,

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	II_RESV,

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	II_IO,

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	II_GEN,

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};

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enum rrrr_ids {

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	R4_GEN	= 0,

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	R4_RD,

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	R4_WR,

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	R4_DRD,

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	R4_DWR,

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	R4_IRD,

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	R4_PREF,

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	R4_EVICT,

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	R4_SNOOP,

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};

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extern const char *tt_msgs[];

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extern const char *ll_msgs[];

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extern const char *rrrr_msgs[];

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extern const char *pp_msgs[];

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extern const char *to_msgs[];

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extern const char *ii_msgs[];

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/*

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 * per-family decoder ops

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 */

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struct amd_decoder_ops {

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	bool (*dc_mce)(u16, u8);

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	bool (*ic_mce)(u16, u8);

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	bool (*nb_mce)(u16, u8);

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};

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void amd_report_gart_errors(bool);

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void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32));

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void amd_unregister_ecc_decoder(void (*f)(int, struct mce *, u32));

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void amd_decode_nb_mce(int, struct mce *, u32);

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int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data);

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#endif /* _EDAC_MCE_AMD_H */

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