1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _EDAC_MCE_AMD_H
3#define _EDAC_MCE_AMD_H
4
5#include <linux/notifier.h>
6
7#include <asm/mce.h>
8
9#define EC(x)				((x) & 0xffff)
10
11#define LOW_SYNDROME(x)			(((x) >> 15) & 0xff)
12#define HIGH_SYNDROME(x)		(((x) >> 24) & 0xff)
13
14#define TLB_ERROR(x)			(((x) & 0xFFF0) == 0x0010)
15#define MEM_ERROR(x)			(((x) & 0xFF00) == 0x0100)
16#define BUS_ERROR(x)			(((x) & 0xF800) == 0x0800)
17#define INT_ERROR(x)			(((x) & 0xF4FF) == 0x0400)
18
19#define TT(x)				(((x) >> 2) & 0x3)
20#define TT_MSG(x)			tt_msgs[TT(x)]
21#define II(x)				(((x) >> 2) & 0x3)
22#define II_MSG(x)			ii_msgs[II(x)]
23#define LL(x)				((x) & 0x3)
24#define LL_MSG(x)			ll_msgs[LL(x)]
25#define TO(x)				(((x) >> 8) & 0x1)
26#define TO_MSG(x)			to_msgs[TO(x)]
27#define PP(x)				(((x) >> 9) & 0x3)
28#define PP_MSG(x)			pp_msgs[PP(x)]
29#define UU(x)				(((x) >> 8) & 0x3)
30#define UU_MSG(x)			uu_msgs[UU(x)]
31
32#define R4(x)				(((x) >> 4) & 0xf)
33#define R4_MSG(x)			((R4(x) < 9) ?  rrrr_msgs[R4(x)] : "Wrong R4!")
34
35extern const char * const pp_msgs[];
36
37enum tt_ids {
38	TT_INSTR = 0,
39	TT_DATA,
40	TT_GEN,
41	TT_RESV,
42};
43
44enum ll_ids {
45	LL_RESV = 0,
46	LL_L1,
47	LL_L2,
48	LL_LG,
49};
50
51enum ii_ids {
52	II_MEM = 0,
53	II_RESV,
54	II_IO,
55	II_GEN,
56};
57
58enum rrrr_ids {
59	R4_GEN	= 0,
60	R4_RD,
61	R4_WR,
62	R4_DRD,
63	R4_DWR,
64	R4_IRD,
65	R4_PREF,
66	R4_EVICT,
67	R4_SNOOP,
68};
69
70/*
71 * per-family decoder ops
72 */
73struct amd_decoder_ops {
74	bool (*mc0_mce)(u16, u8);
75	bool (*mc1_mce)(u16, u8);
76	bool (*mc2_mce)(u16, u8);
77};
78
79void amd_register_ecc_decoder(void (*f)(int, struct mce *));
80void amd_unregister_ecc_decoder(void (*f)(int, struct mce *));
81
82#endif /* _EDAC_MCE_AMD_H */
83