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0009 #ifndef __ASM_PPC64_MCE_H__
0010 #define __ASM_PPC64_MCE_H__
0011
0012 #include <linux/bitops.h>
0013
0014 enum MCE_Version {
0015 MCE_V1 = 1,
0016 };
0017
0018 enum MCE_Severity {
0019 MCE_SEV_NO_ERROR = 0,
0020 MCE_SEV_WARNING = 1,
0021 MCE_SEV_SEVERE = 2,
0022 MCE_SEV_FATAL = 3,
0023 };
0024
0025 enum MCE_Disposition {
0026 MCE_DISPOSITION_RECOVERED = 0,
0027 MCE_DISPOSITION_NOT_RECOVERED = 1,
0028 };
0029
0030 enum MCE_Initiator {
0031 MCE_INITIATOR_UNKNOWN = 0,
0032 MCE_INITIATOR_CPU = 1,
0033 MCE_INITIATOR_PCI = 2,
0034 MCE_INITIATOR_ISA = 3,
0035 MCE_INITIATOR_MEMORY= 4,
0036 MCE_INITIATOR_POWERMGM = 5,
0037 };
0038
0039 enum MCE_ErrorType {
0040 MCE_ERROR_TYPE_UNKNOWN = 0,
0041 MCE_ERROR_TYPE_UE = 1,
0042 MCE_ERROR_TYPE_SLB = 2,
0043 MCE_ERROR_TYPE_ERAT = 3,
0044 MCE_ERROR_TYPE_TLB = 4,
0045 MCE_ERROR_TYPE_USER = 5,
0046 MCE_ERROR_TYPE_RA = 6,
0047 MCE_ERROR_TYPE_LINK = 7,
0048 MCE_ERROR_TYPE_DCACHE = 8,
0049 MCE_ERROR_TYPE_ICACHE = 9,
0050 };
0051
0052 enum MCE_ErrorClass {
0053 MCE_ECLASS_UNKNOWN = 0,
0054 MCE_ECLASS_HARDWARE,
0055 MCE_ECLASS_HARD_INDETERMINATE,
0056 MCE_ECLASS_SOFTWARE,
0057 MCE_ECLASS_SOFT_INDETERMINATE,
0058 };
0059
0060 enum MCE_UeErrorType {
0061 MCE_UE_ERROR_INDETERMINATE = 0,
0062 MCE_UE_ERROR_IFETCH = 1,
0063 MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
0064 MCE_UE_ERROR_LOAD_STORE = 3,
0065 MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
0066 };
0067
0068 enum MCE_SlbErrorType {
0069 MCE_SLB_ERROR_INDETERMINATE = 0,
0070 MCE_SLB_ERROR_PARITY = 1,
0071 MCE_SLB_ERROR_MULTIHIT = 2,
0072 };
0073
0074 enum MCE_EratErrorType {
0075 MCE_ERAT_ERROR_INDETERMINATE = 0,
0076 MCE_ERAT_ERROR_PARITY = 1,
0077 MCE_ERAT_ERROR_MULTIHIT = 2,
0078 };
0079
0080 enum MCE_TlbErrorType {
0081 MCE_TLB_ERROR_INDETERMINATE = 0,
0082 MCE_TLB_ERROR_PARITY = 1,
0083 MCE_TLB_ERROR_MULTIHIT = 2,
0084 };
0085
0086 enum MCE_UserErrorType {
0087 MCE_USER_ERROR_INDETERMINATE = 0,
0088 MCE_USER_ERROR_TLBIE = 1,
0089 MCE_USER_ERROR_SCV = 2,
0090 };
0091
0092 enum MCE_RaErrorType {
0093 MCE_RA_ERROR_INDETERMINATE = 0,
0094 MCE_RA_ERROR_IFETCH = 1,
0095 MCE_RA_ERROR_IFETCH_FOREIGN = 2,
0096 MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3,
0097 MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4,
0098 MCE_RA_ERROR_LOAD = 5,
0099 MCE_RA_ERROR_STORE = 6,
0100 MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7,
0101 MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8,
0102 MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9,
0103 };
0104
0105 enum MCE_LinkErrorType {
0106 MCE_LINK_ERROR_INDETERMINATE = 0,
0107 MCE_LINK_ERROR_IFETCH_TIMEOUT = 1,
0108 MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2,
0109 MCE_LINK_ERROR_LOAD_TIMEOUT = 3,
0110 MCE_LINK_ERROR_STORE_TIMEOUT = 4,
0111 MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5,
0112 };
0113
0114 struct machine_check_event {
0115 enum MCE_Version version:8;
0116 u8 in_use;
0117 enum MCE_Severity severity:8;
0118 enum MCE_Initiator initiator:8;
0119 enum MCE_ErrorType error_type:8;
0120 enum MCE_ErrorClass error_class:8;
0121 enum MCE_Disposition disposition:8;
0122 bool sync_error;
0123 u16 cpu;
0124 u64 gpr3;
0125 u64 srr0;
0126 u64 srr1;
0127 union {
0128 struct {
0129 enum MCE_UeErrorType ue_error_type:8;
0130 u8 effective_address_provided;
0131 u8 physical_address_provided;
0132 u8 ignore_event;
0133 u8 reserved_1[4];
0134 u64 effective_address;
0135 u64 physical_address;
0136 u8 reserved_2[8];
0137 } ue_error;
0138
0139 struct {
0140 enum MCE_SlbErrorType slb_error_type:8;
0141 u8 effective_address_provided;
0142 u8 reserved_1[6];
0143 u64 effective_address;
0144 u8 reserved_2[16];
0145 } slb_error;
0146
0147 struct {
0148 enum MCE_EratErrorType erat_error_type:8;
0149 u8 effective_address_provided;
0150 u8 reserved_1[6];
0151 u64 effective_address;
0152 u8 reserved_2[16];
0153 } erat_error;
0154
0155 struct {
0156 enum MCE_TlbErrorType tlb_error_type:8;
0157 u8 effective_address_provided;
0158 u8 reserved_1[6];
0159 u64 effective_address;
0160 u8 reserved_2[16];
0161 } tlb_error;
0162
0163 struct {
0164 enum MCE_UserErrorType user_error_type:8;
0165 u8 effective_address_provided;
0166 u8 reserved_1[6];
0167 u64 effective_address;
0168 u8 reserved_2[16];
0169 } user_error;
0170
0171 struct {
0172 enum MCE_RaErrorType ra_error_type:8;
0173 u8 effective_address_provided;
0174 u8 reserved_1[6];
0175 u64 effective_address;
0176 u8 reserved_2[16];
0177 } ra_error;
0178
0179 struct {
0180 enum MCE_LinkErrorType link_error_type:8;
0181 u8 effective_address_provided;
0182 u8 reserved_1[6];
0183 u64 effective_address;
0184 u8 reserved_2[16];
0185 } link_error;
0186 } u;
0187 };
0188
0189 struct mce_error_info {
0190 enum MCE_ErrorType error_type:8;
0191 union {
0192 enum MCE_UeErrorType ue_error_type:8;
0193 enum MCE_SlbErrorType slb_error_type:8;
0194 enum MCE_EratErrorType erat_error_type:8;
0195 enum MCE_TlbErrorType tlb_error_type:8;
0196 enum MCE_UserErrorType user_error_type:8;
0197 enum MCE_RaErrorType ra_error_type:8;
0198 enum MCE_LinkErrorType link_error_type:8;
0199 } u;
0200 enum MCE_Severity severity:8;
0201 enum MCE_Initiator initiator:8;
0202 enum MCE_ErrorClass error_class:8;
0203 bool sync_error;
0204 bool ignore_event;
0205 };
0206
0207 #define MAX_MC_EVT 10
0208
0209 struct mce_info {
0210 int mce_nest_count;
0211 struct machine_check_event mce_event[MAX_MC_EVT];
0212
0213 int mce_queue_count;
0214 struct machine_check_event mce_event_queue[MAX_MC_EVT];
0215
0216 int mce_ue_count;
0217 struct machine_check_event mce_ue_event_queue[MAX_MC_EVT];
0218 };
0219
0220
0221 #define MCE_EVENT_RELEASE true
0222 #define MCE_EVENT_DONTRELEASE false
0223
0224 struct pt_regs;
0225 struct notifier_block;
0226
0227 extern void save_mce_event(struct pt_regs *regs, long handled,
0228 struct mce_error_info *mce_err, uint64_t nip,
0229 uint64_t addr, uint64_t phys_addr);
0230 extern int get_mce_event(struct machine_check_event *mce, bool release);
0231 extern void release_mce_event(void);
0232 extern void machine_check_queue_event(void);
0233 extern void machine_check_print_event_info(struct machine_check_event *evt,
0234 bool user_mode, bool in_guest);
0235 unsigned long addr_to_pfn(struct pt_regs *regs, unsigned long addr);
0236 extern void mce_common_process_ue(struct pt_regs *regs,
0237 struct mce_error_info *mce_err);
0238 void mce_irq_work_queue(void);
0239 int mce_register_notifier(struct notifier_block *nb);
0240 int mce_unregister_notifier(struct notifier_block *nb);
0241
0242 #ifdef CONFIG_PPC_BOOK3S_64
0243 void mce_run_irq_context_handlers(void);
0244 #else
0245 static inline void mce_run_irq_context_handlers(void) { };
0246 #endif
0247
0248 #ifdef CONFIG_PPC_BOOK3S_64
0249 void set_mce_pending_irq_work(void);
0250 void clear_mce_pending_irq_work(void);
0251 #endif
0252
0253 #ifdef CONFIG_PPC_BOOK3S_64
0254 void flush_and_reload_slb(void);
0255 void flush_erat(void);
0256 long __machine_check_early_realmode_p7(struct pt_regs *regs);
0257 long __machine_check_early_realmode_p8(struct pt_regs *regs);
0258 long __machine_check_early_realmode_p9(struct pt_regs *regs);
0259 long __machine_check_early_realmode_p10(struct pt_regs *regs);
0260 #endif
0261
0262 #ifdef CONFIG_PPC_BOOK3S_64
0263 void mce_init(void);
0264 #else
0265 static inline void mce_init(void) { };
0266 #endif
0267
0268 #endif
