xref: /linux/drivers/edac/mce_amd.h (revision b889fcf63cb62e7fdb7816565e28f44dbe4a76a5)
1 #ifndef _EDAC_MCE_AMD_H
2 #define _EDAC_MCE_AMD_H
3 
4 #include <linux/notifier.h>
5 
6 #include <asm/mce.h>
7 
8 #define EC(x)				((x) & 0xffff)
9 #define XEC(x, mask)			(((x) >> 16) & mask)
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 
18 #define TT(x)				(((x) >> 2) & 0x3)
19 #define TT_MSG(x)			tt_msgs[TT(x)]
20 #define II(x)				(((x) >> 2) & 0x3)
21 #define II_MSG(x)			ii_msgs[II(x)]
22 #define LL(x)				((x) & 0x3)
23 #define LL_MSG(x)			ll_msgs[LL(x)]
24 #define TO(x)				(((x) >> 8) & 0x1)
25 #define TO_MSG(x)			to_msgs[TO(x)]
26 #define PP(x)				(((x) >> 9) & 0x3)
27 #define PP_MSG(x)			pp_msgs[PP(x)]
28 
29 #define R4(x)				(((x) >> 4) & 0xf)
30 #define R4_MSG(x)			((R4(x) < 9) ?  rrrr_msgs[R4(x)] : "Wrong R4!")
31 
32 #define MCI_STATUS_DEFERRED		BIT_64(44)
33 #define MCI_STATUS_POISON		BIT_64(43)
34 
35 enum tt_ids {
36 	TT_INSTR = 0,
37 	TT_DATA,
38 	TT_GEN,
39 	TT_RESV,
40 };
41 
42 enum ll_ids {
43 	LL_RESV = 0,
44 	LL_L1,
45 	LL_L2,
46 	LL_LG,
47 };
48 
49 enum ii_ids {
50 	II_MEM = 0,
51 	II_RESV,
52 	II_IO,
53 	II_GEN,
54 };
55 
56 enum rrrr_ids {
57 	R4_GEN	= 0,
58 	R4_RD,
59 	R4_WR,
60 	R4_DRD,
61 	R4_DWR,
62 	R4_IRD,
63 	R4_PREF,
64 	R4_EVICT,
65 	R4_SNOOP,
66 };
67 
68 extern const char * const tt_msgs[];
69 extern const char * const ll_msgs[];
70 extern const char * const rrrr_msgs[];
71 extern const char * const pp_msgs[];
72 extern const char * const to_msgs[];
73 extern const char * const ii_msgs[];
74 
75 /*
76  * per-family decoder ops
77  */
78 struct amd_decoder_ops {
79 	bool (*mc0_mce)(u16, u8);
80 	bool (*mc1_mce)(u16, u8);
81 };
82 
83 void amd_report_gart_errors(bool);
84 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
85 void amd_unregister_ecc_decoder(void (*f)(int, struct mce *));
86 int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data);
87 
88 #endif /* _EDAC_MCE_AMD_H */
89