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1da177e4 LT |
1 | #ifndef _ASM_MCE_H |
2 | #define _ASM_MCE_H 1 | |
3 | ||
4 | #include <asm/ioctls.h> | |
5 | #include <asm/types.h> | |
6 | ||
7 | /* | |
8 | * Machine Check support for x86 | |
9 | */ | |
10 | ||
11 | #define MCG_CTL_P (1UL<<8) /* MCG_CAP register available */ | |
12 | ||
13 | #define MCG_STATUS_RIPV (1UL<<0) /* restart ip valid */ | |
14 | #define MCG_STATUS_EIPV (1UL<<1) /* eip points to correct instruction */ | |
15 | #define MCG_STATUS_MCIP (1UL<<2) /* machine check in progress */ | |
16 | ||
17 | #define MCI_STATUS_VAL (1UL<<63) /* valid error */ | |
18 | #define MCI_STATUS_OVER (1UL<<62) /* previous errors lost */ | |
19 | #define MCI_STATUS_UC (1UL<<61) /* uncorrected error */ | |
20 | #define MCI_STATUS_EN (1UL<<60) /* error enabled */ | |
21 | #define MCI_STATUS_MISCV (1UL<<59) /* misc error reg. valid */ | |
22 | #define MCI_STATUS_ADDRV (1UL<<58) /* addr reg. valid */ | |
23 | #define MCI_STATUS_PCC (1UL<<57) /* processor context corrupt */ | |
24 | ||
25 | /* Fields are zero when not available */ | |
26 | struct mce { | |
27 | __u64 status; | |
28 | __u64 misc; | |
29 | __u64 addr; | |
30 | __u64 mcgstatus; | |
31 | __u64 rip; | |
32 | __u64 tsc; /* cpu time stamp counter */ | |
33 | __u64 res1; /* for future extension */ | |
34 | __u64 res2; /* dito. */ | |
35 | __u8 cs; /* code segment */ | |
36 | __u8 bank; /* machine check bank */ | |
37 | __u8 cpu; /* cpu that raised the error */ | |
38 | __u8 finished; /* entry is valid */ | |
39 | __u32 pad; | |
40 | }; | |
41 | ||
42 | /* | |
43 | * This structure contains all data related to the MCE log. | |
44 | * Also carries a signature to make it easier to find from external debugging tools. | |
45 | * Each entry is only valid when its finished flag is set. | |
46 | */ | |
47 | ||
48 | #define MCE_LOG_LEN 32 | |
49 | ||
50 | struct mce_log { | |
51 | char signature[12]; /* "MACHINECHECK" */ | |
52 | unsigned len; /* = MCE_LOG_LEN */ | |
53 | unsigned next; | |
54 | unsigned flags; | |
55 | unsigned pad0; | |
56 | struct mce entry[MCE_LOG_LEN]; | |
57 | }; | |
58 | ||
59 | #define MCE_OVERFLOW 0 /* bit 0 in flags means overflow */ | |
60 | ||
61 | #define MCE_LOG_SIGNATURE "MACHINECHECK" | |
62 | ||
63 | #define MCE_GET_RECORD_LEN _IOR('M', 1, int) | |
64 | #define MCE_GET_LOG_LEN _IOR('M', 2, int) | |
65 | #define MCE_GETCLEAR_FLAGS _IOR('M', 3, int) | |
66 | ||
67 | /* Software defined banks */ | |
68 | #define MCE_EXTENDED_BANK 128 | |
69 | #define MCE_THERMAL_BANK MCE_EXTENDED_BANK + 0 | |
95268664 JS |
70 | |
71 | #define K8_MCE_THRESHOLD_BASE (MCE_EXTENDED_BANK + 1) /* MCE_AMD */ | |
72 | #define K8_MCE_THRESHOLD_BANK_0 (MCE_THRESHOLD_BASE + 0 * 9) | |
73 | #define K8_MCE_THRESHOLD_BANK_1 (MCE_THRESHOLD_BASE + 1 * 9) | |
74 | #define K8_MCE_THRESHOLD_BANK_2 (MCE_THRESHOLD_BASE + 2 * 9) | |
75 | #define K8_MCE_THRESHOLD_BANK_3 (MCE_THRESHOLD_BASE + 3 * 9) | |
76 | #define K8_MCE_THRESHOLD_BANK_4 (MCE_THRESHOLD_BASE + 4 * 9) | |
77 | #define K8_MCE_THRESHOLD_BANK_5 (MCE_THRESHOLD_BASE + 5 * 9) | |
78 | #define K8_MCE_THRESHOLD_DRAM_ECC (MCE_THRESHOLD_BANK_4 + 0) | |
1da177e4 | 79 | |
553f265f AK |
80 | #ifdef __KERNEL__ |
81 | #include <asm/atomic.h> | |
82 | ||
1da177e4 | 83 | void mce_log(struct mce *m); |
fff2e89f JS |
84 | DECLARE_PER_CPU(struct sys_device, device_mce); |
85 | ||
1da177e4 LT |
86 | #ifdef CONFIG_X86_MCE_INTEL |
87 | void mce_intel_feature_init(struct cpuinfo_x86 *c); | |
88 | #else | |
89 | static inline void mce_intel_feature_init(struct cpuinfo_x86 *c) | |
90 | { | |
91 | } | |
92 | #endif | |
93 | ||
89b831ef JS |
94 | #ifdef CONFIG_X86_MCE_AMD |
95 | void mce_amd_feature_init(struct cpuinfo_x86 *c); | |
96 | #else | |
97 | static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) | |
98 | { | |
99 | } | |
100 | #endif | |
101 | ||
15d5f839 DZ |
102 | void mce_log_therm_throt_event(unsigned int cpu, __u64 status); |
103 | ||
553f265f AK |
104 | extern atomic_t mce_entry; |
105 | ||
a98f0dd3 AK |
106 | extern void do_machine_check(struct pt_regs *, long); |
107 | ||
e02e68d3 TH |
108 | extern int mce_notify_user(void); |
109 | ||
8f4e956b AK |
110 | extern void stop_mce(void); |
111 | extern void restart_mce(void); | |
112 | ||
553f265f AK |
113 | #endif |
114 | ||
1da177e4 | 115 | #endif |