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22#ifndef __ASM_PPC64_MCE_H__
23#define __ASM_PPC64_MCE_H__
24
25#include <linux/bitops.h>
26
27enum MCE_Version {
28 MCE_V1 = 1,
29};
30
31enum MCE_Severity {
32 MCE_SEV_NO_ERROR = 0,
33 MCE_SEV_WARNING = 1,
34 MCE_SEV_ERROR_SYNC = 2,
35 MCE_SEV_FATAL = 3,
36};
37
38enum MCE_Disposition {
39 MCE_DISPOSITION_RECOVERED = 0,
40 MCE_DISPOSITION_NOT_RECOVERED = 1,
41};
42
43enum MCE_Initiator {
44 MCE_INITIATOR_UNKNOWN = 0,
45 MCE_INITIATOR_CPU = 1,
46};
47
48enum MCE_ErrorType {
49 MCE_ERROR_TYPE_UNKNOWN = 0,
50 MCE_ERROR_TYPE_UE = 1,
51 MCE_ERROR_TYPE_SLB = 2,
52 MCE_ERROR_TYPE_ERAT = 3,
53 MCE_ERROR_TYPE_TLB = 4,
54 MCE_ERROR_TYPE_USER = 5,
55 MCE_ERROR_TYPE_RA = 6,
56 MCE_ERROR_TYPE_LINK = 7,
57};
58
59enum MCE_UeErrorType {
60 MCE_UE_ERROR_INDETERMINATE = 0,
61 MCE_UE_ERROR_IFETCH = 1,
62 MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
63 MCE_UE_ERROR_LOAD_STORE = 3,
64 MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
65};
66
67enum MCE_SlbErrorType {
68 MCE_SLB_ERROR_INDETERMINATE = 0,
69 MCE_SLB_ERROR_PARITY = 1,
70 MCE_SLB_ERROR_MULTIHIT = 2,
71};
72
73enum MCE_EratErrorType {
74 MCE_ERAT_ERROR_INDETERMINATE = 0,
75 MCE_ERAT_ERROR_PARITY = 1,
76 MCE_ERAT_ERROR_MULTIHIT = 2,
77};
78
79enum MCE_TlbErrorType {
80 MCE_TLB_ERROR_INDETERMINATE = 0,
81 MCE_TLB_ERROR_PARITY = 1,
82 MCE_TLB_ERROR_MULTIHIT = 2,
83};
84
85enum MCE_UserErrorType {
86 MCE_USER_ERROR_INDETERMINATE = 0,
87 MCE_USER_ERROR_TLBIE = 1,
88};
89
90enum MCE_RaErrorType {
91 MCE_RA_ERROR_INDETERMINATE = 0,
92 MCE_RA_ERROR_IFETCH = 1,
93 MCE_RA_ERROR_IFETCH_FOREIGN = 2,
94 MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3,
95 MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4,
96 MCE_RA_ERROR_LOAD = 5,
97 MCE_RA_ERROR_STORE = 6,
98 MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7,
99 MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8,
100 MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9,
101};
102
103enum MCE_LinkErrorType {
104 MCE_LINK_ERROR_INDETERMINATE = 0,
105 MCE_LINK_ERROR_IFETCH_TIMEOUT = 1,
106 MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2,
107 MCE_LINK_ERROR_LOAD_TIMEOUT = 3,
108 MCE_LINK_ERROR_STORE_TIMEOUT = 4,
109 MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5,
110};
111
112struct machine_check_event {
113 enum MCE_Version version:8;
114 uint8_t in_use;
115 enum MCE_Severity severity:8;
116 enum MCE_Initiator initiator:8;
117 enum MCE_ErrorType error_type:8;
118 enum MCE_Disposition disposition:8;
119 uint8_t reserved_1[2];
120 uint64_t gpr3;
121 uint64_t srr0;
122 uint64_t srr1;
123 union {
124 struct {
125 enum MCE_UeErrorType ue_error_type:8;
126 uint8_t effective_address_provided;
127 uint8_t physical_address_provided;
128 uint8_t reserved_1[5];
129 uint64_t effective_address;
130 uint64_t physical_address;
131 uint8_t reserved_2[8];
132 } ue_error;
133
134 struct {
135 enum MCE_SlbErrorType slb_error_type:8;
136 uint8_t effective_address_provided;
137 uint8_t reserved_1[6];
138 uint64_t effective_address;
139 uint8_t reserved_2[16];
140 } slb_error;
141
142 struct {
143 enum MCE_EratErrorType erat_error_type:8;
144 uint8_t effective_address_provided;
145 uint8_t reserved_1[6];
146 uint64_t effective_address;
147 uint8_t reserved_2[16];
148 } erat_error;
149
150 struct {
151 enum MCE_TlbErrorType tlb_error_type:8;
152 uint8_t effective_address_provided;
153 uint8_t reserved_1[6];
154 uint64_t effective_address;
155 uint8_t reserved_2[16];
156 } tlb_error;
157
158 struct {
159 enum MCE_UserErrorType user_error_type:8;
160 uint8_t effective_address_provided;
161 uint8_t reserved_1[6];
162 uint64_t effective_address;
163 uint8_t reserved_2[16];
164 } user_error;
165
166 struct {
167 enum MCE_RaErrorType ra_error_type:8;
168 uint8_t effective_address_provided;
169 uint8_t reserved_1[6];
170 uint64_t effective_address;
171 uint8_t reserved_2[16];
172 } ra_error;
173
174 struct {
175 enum MCE_LinkErrorType link_error_type:8;
176 uint8_t effective_address_provided;
177 uint8_t reserved_1[6];
178 uint64_t effective_address;
179 uint8_t reserved_2[16];
180 } link_error;
181 } u;
182};
183
184struct mce_error_info {
185 enum MCE_ErrorType error_type:8;
186 union {
187 enum MCE_UeErrorType ue_error_type:8;
188 enum MCE_SlbErrorType slb_error_type:8;
189 enum MCE_EratErrorType erat_error_type:8;
190 enum MCE_TlbErrorType tlb_error_type:8;
191 enum MCE_UserErrorType user_error_type:8;
192 enum MCE_RaErrorType ra_error_type:8;
193 enum MCE_LinkErrorType link_error_type:8;
194 } u;
195 enum MCE_Severity severity:8;
196 enum MCE_Initiator initiator:8;
197};
198
199#define MAX_MC_EVT 100
200
201
202#define MCE_EVENT_RELEASE true
203#define MCE_EVENT_DONTRELEASE false
204
205extern void save_mce_event(struct pt_regs *regs, long handled,
206 struct mce_error_info *mce_err, uint64_t nip,
207 uint64_t addr);
208extern int get_mce_event(struct machine_check_event *mce, bool release);
209extern void release_mce_event(void);
210extern void machine_check_queue_event(void);
211extern void machine_check_print_event_info(struct machine_check_event *evt,
212 bool user_mode);
213extern uint64_t get_mce_fault_addr(struct machine_check_event *evt);
214
215#endif
216
