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22#ifndef __ASM_PPC64_MCE_H__
23#define __ASM_PPC64_MCE_H__
24
25#include <linux/bitops.h>
26
27
28
29
30#define P7_SRR1_MC_LOADSTORE(srr1) ((srr1) & PPC_BIT(42))
31
32
33#define P7_SRR1_MC_IFETCH(srr1) ((srr1) & PPC_BITMASK(43, 45))
34
35#define P7_SRR1_MC_IFETCH_UE (0x1 << PPC_BITLSHIFT(45))
36#define P7_SRR1_MC_IFETCH_SLB_PARITY (0x2 << PPC_BITLSHIFT(45))
37#define P7_SRR1_MC_IFETCH_SLB_MULTIHIT (0x3 << PPC_BITLSHIFT(45))
38#define P7_SRR1_MC_IFETCH_SLB_BOTH (0x4 << PPC_BITLSHIFT(45))
39#define P7_SRR1_MC_IFETCH_TLB_MULTIHIT (0x5 << PPC_BITLSHIFT(45))
40#define P7_SRR1_MC_IFETCH_UE_TLB_RELOAD (0x6 << PPC_BITLSHIFT(45))
41#define P7_SRR1_MC_IFETCH_UE_IFU_INTERNAL (0x7 << PPC_BITLSHIFT(45))
42
43
44#define P8_SRR1_MC_IFETCH_ERAT_MULTIHIT (0x4 << PPC_BITLSHIFT(45))
45
46
47#define P7_DSISR_MC_UE (PPC_BIT(48))
48#define P7_DSISR_MC_UE_TABLEWALK (PPC_BIT(49))
49#define P7_DSISR_MC_ERAT_MULTIHIT (PPC_BIT(52))
50#define P7_DSISR_MC_TLB_MULTIHIT_MFTLB (PPC_BIT(53))
51#define P7_DSISR_MC_SLB_PARITY_MFSLB (PPC_BIT(55))
52#define P7_DSISR_MC_SLB_MULTIHIT (PPC_BIT(56))
53#define P7_DSISR_MC_SLB_MULTIHIT_PARITY (PPC_BIT(57))
54
55
56
57
58
59#define P8_DSISR_MC_ERAT_MULTIHIT_SEC (PPC_BIT(54))
60
61
62#define P7_DSISR_MC_SLB_ERRORS (P7_DSISR_MC_ERAT_MULTIHIT | \
63 P7_DSISR_MC_SLB_PARITY_MFSLB | \
64 P7_DSISR_MC_SLB_MULTIHIT | \
65 P7_DSISR_MC_SLB_MULTIHIT_PARITY)
66
67#define P8_DSISR_MC_SLB_ERRORS (P7_DSISR_MC_SLB_ERRORS | \
68 P8_DSISR_MC_ERAT_MULTIHIT_SEC)
69enum MCE_Version {
70 MCE_V1 = 1,
71};
72
73enum MCE_Severity {
74 MCE_SEV_NO_ERROR = 0,
75 MCE_SEV_WARNING = 1,
76 MCE_SEV_ERROR_SYNC = 2,
77 MCE_SEV_FATAL = 3,
78};
79
80enum MCE_Disposition {
81 MCE_DISPOSITION_RECOVERED = 0,
82 MCE_DISPOSITION_NOT_RECOVERED = 1,
83};
84
85enum MCE_Initiator {
86 MCE_INITIATOR_UNKNOWN = 0,
87 MCE_INITIATOR_CPU = 1,
88};
89
90enum MCE_ErrorType {
91 MCE_ERROR_TYPE_UNKNOWN = 0,
92 MCE_ERROR_TYPE_UE = 1,
93 MCE_ERROR_TYPE_SLB = 2,
94 MCE_ERROR_TYPE_ERAT = 3,
95 MCE_ERROR_TYPE_TLB = 4,
96};
97
98enum MCE_UeErrorType {
99 MCE_UE_ERROR_INDETERMINATE = 0,
100 MCE_UE_ERROR_IFETCH = 1,
101 MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
102 MCE_UE_ERROR_LOAD_STORE = 3,
103 MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
104};
105
106enum MCE_SlbErrorType {
107 MCE_SLB_ERROR_INDETERMINATE = 0,
108 MCE_SLB_ERROR_PARITY = 1,
109 MCE_SLB_ERROR_MULTIHIT = 2,
110};
111
112enum MCE_EratErrorType {
113 MCE_ERAT_ERROR_INDETERMINATE = 0,
114 MCE_ERAT_ERROR_PARITY = 1,
115 MCE_ERAT_ERROR_MULTIHIT = 2,
116};
117
118enum MCE_TlbErrorType {
119 MCE_TLB_ERROR_INDETERMINATE = 0,
120 MCE_TLB_ERROR_PARITY = 1,
121 MCE_TLB_ERROR_MULTIHIT = 2,
122};
123
124struct machine_check_event {
125 enum MCE_Version version:8;
126 uint8_t in_use;
127 enum MCE_Severity severity:8;
128 enum MCE_Initiator initiator:8;
129 enum MCE_ErrorType error_type:8;
130 enum MCE_Disposition disposition:8;
131 uint8_t reserved_1[2];
132 uint64_t gpr3;
133 uint64_t srr0;
134 uint64_t srr1;
135 union {
136 struct {
137 enum MCE_UeErrorType ue_error_type:8;
138 uint8_t effective_address_provided;
139 uint8_t physical_address_provided;
140 uint8_t reserved_1[5];
141 uint64_t effective_address;
142 uint64_t physical_address;
143 uint8_t reserved_2[8];
144 } ue_error;
145
146 struct {
147 enum MCE_SlbErrorType slb_error_type:8;
148 uint8_t effective_address_provided;
149 uint8_t reserved_1[6];
150 uint64_t effective_address;
151 uint8_t reserved_2[16];
152 } slb_error;
153
154 struct {
155 enum MCE_EratErrorType erat_error_type:8;
156 uint8_t effective_address_provided;
157 uint8_t reserved_1[6];
158 uint64_t effective_address;
159 uint8_t reserved_2[16];
160 } erat_error;
161
162 struct {
163 enum MCE_TlbErrorType tlb_error_type:8;
164 uint8_t effective_address_provided;
165 uint8_t reserved_1[6];
166 uint64_t effective_address;
167 uint8_t reserved_2[16];
168 } tlb_error;
169 } u;
170};
171
172struct mce_error_info {
173 enum MCE_ErrorType error_type:8;
174 union {
175 enum MCE_UeErrorType ue_error_type:8;
176 enum MCE_SlbErrorType slb_error_type:8;
177 enum MCE_EratErrorType erat_error_type:8;
178 enum MCE_TlbErrorType tlb_error_type:8;
179 } u;
180 uint8_t reserved[2];
181};
182
183#define MAX_MC_EVT 100
184
185
186#define MCE_EVENT_RELEASE true
187#define MCE_EVENT_DONTRELEASE false
188
189extern void save_mce_event(struct pt_regs *regs, long handled,
190 struct mce_error_info *mce_err, uint64_t nip,
191 uint64_t addr);
192extern int get_mce_event(struct machine_check_event *mce, bool release);
193extern void release_mce_event(void);
194extern void machine_check_queue_event(void);
195extern void machine_check_print_event_info(struct machine_check_event *evt);
196extern uint64_t get_mce_fault_addr(struct machine_check_event *evt);
197
198#endif
199
