11a59d1b8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 2e22a2274SMahesh Salgaonkar /* 3e22a2274SMahesh Salgaonkar * Machine check exception header file. 4e22a2274SMahesh Salgaonkar * 5e22a2274SMahesh Salgaonkar * Copyright 2013 IBM Corporation 6e22a2274SMahesh Salgaonkar * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> 7e22a2274SMahesh Salgaonkar */ 8e22a2274SMahesh Salgaonkar 9e22a2274SMahesh Salgaonkar #ifndef __ASM_PPC64_MCE_H__ 10e22a2274SMahesh Salgaonkar #define __ASM_PPC64_MCE_H__ 11e22a2274SMahesh Salgaonkar 12e22a2274SMahesh Salgaonkar #include <linux/bitops.h> 13e22a2274SMahesh Salgaonkar 1436df96f8SMahesh Salgaonkar enum MCE_Version { 1536df96f8SMahesh Salgaonkar MCE_V1 = 1, 1636df96f8SMahesh Salgaonkar }; 1736df96f8SMahesh Salgaonkar 1836df96f8SMahesh Salgaonkar enum MCE_Severity { 1936df96f8SMahesh Salgaonkar MCE_SEV_NO_ERROR = 0, 2036df96f8SMahesh Salgaonkar MCE_SEV_WARNING = 1, 21cda6618dSMahesh Salgaonkar MCE_SEV_SEVERE = 2, 2236df96f8SMahesh Salgaonkar MCE_SEV_FATAL = 3, 2336df96f8SMahesh Salgaonkar }; 2436df96f8SMahesh Salgaonkar 2536df96f8SMahesh Salgaonkar enum MCE_Disposition { 2636df96f8SMahesh Salgaonkar MCE_DISPOSITION_RECOVERED = 0, 2736df96f8SMahesh Salgaonkar MCE_DISPOSITION_NOT_RECOVERED = 1, 2836df96f8SMahesh Salgaonkar }; 2936df96f8SMahesh Salgaonkar 3036df96f8SMahesh Salgaonkar enum MCE_Initiator { 3136df96f8SMahesh Salgaonkar MCE_INITIATOR_UNKNOWN = 0, 3236df96f8SMahesh Salgaonkar MCE_INITIATOR_CPU = 1, 3336df96f8SMahesh Salgaonkar }; 3436df96f8SMahesh Salgaonkar 3536df96f8SMahesh Salgaonkar enum MCE_ErrorType { 3636df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_UNKNOWN = 0, 3736df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_UE = 1, 3836df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_SLB = 2, 3936df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_ERAT = 3, 4036df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_TLB = 4, 417b9f71f9SNicholas Piggin MCE_ERROR_TYPE_USER = 5, 427b9f71f9SNicholas Piggin MCE_ERROR_TYPE_RA = 6, 437b9f71f9SNicholas Piggin MCE_ERROR_TYPE_LINK = 7, 4436df96f8SMahesh Salgaonkar }; 4536df96f8SMahesh Salgaonkar 4650dbabe0SMahesh Salgaonkar enum MCE_ErrorClass { 4750dbabe0SMahesh Salgaonkar MCE_ECLASS_UNKNOWN = 0, 4850dbabe0SMahesh Salgaonkar MCE_ECLASS_HARDWARE, 4950dbabe0SMahesh Salgaonkar MCE_ECLASS_HARD_INDETERMINATE, 5050dbabe0SMahesh Salgaonkar MCE_ECLASS_SOFTWARE, 5150dbabe0SMahesh Salgaonkar MCE_ECLASS_SOFT_INDETERMINATE, 5250dbabe0SMahesh Salgaonkar }; 5350dbabe0SMahesh Salgaonkar 5436df96f8SMahesh Salgaonkar enum MCE_UeErrorType { 5536df96f8SMahesh Salgaonkar MCE_UE_ERROR_INDETERMINATE = 0, 5636df96f8SMahesh Salgaonkar MCE_UE_ERROR_IFETCH = 1, 5736df96f8SMahesh Salgaonkar MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2, 5836df96f8SMahesh Salgaonkar MCE_UE_ERROR_LOAD_STORE = 3, 5936df96f8SMahesh Salgaonkar MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4, 6036df96f8SMahesh Salgaonkar }; 6136df96f8SMahesh Salgaonkar 6236df96f8SMahesh Salgaonkar enum MCE_SlbErrorType { 6336df96f8SMahesh Salgaonkar MCE_SLB_ERROR_INDETERMINATE = 0, 6436df96f8SMahesh Salgaonkar MCE_SLB_ERROR_PARITY = 1, 6536df96f8SMahesh Salgaonkar MCE_SLB_ERROR_MULTIHIT = 2, 6636df96f8SMahesh Salgaonkar }; 6736df96f8SMahesh Salgaonkar 6836df96f8SMahesh Salgaonkar enum MCE_EratErrorType { 6936df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_INDETERMINATE = 0, 7036df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_PARITY = 1, 7136df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_MULTIHIT = 2, 7236df96f8SMahesh Salgaonkar }; 7336df96f8SMahesh Salgaonkar 7436df96f8SMahesh Salgaonkar enum MCE_TlbErrorType { 7536df96f8SMahesh Salgaonkar MCE_TLB_ERROR_INDETERMINATE = 0, 7636df96f8SMahesh Salgaonkar MCE_TLB_ERROR_PARITY = 1, 7736df96f8SMahesh Salgaonkar MCE_TLB_ERROR_MULTIHIT = 2, 7836df96f8SMahesh Salgaonkar }; 7936df96f8SMahesh Salgaonkar 807b9f71f9SNicholas Piggin enum MCE_UserErrorType { 817b9f71f9SNicholas Piggin MCE_USER_ERROR_INDETERMINATE = 0, 827b9f71f9SNicholas Piggin MCE_USER_ERROR_TLBIE = 1, 837b9f71f9SNicholas Piggin }; 847b9f71f9SNicholas Piggin 857b9f71f9SNicholas Piggin enum MCE_RaErrorType { 867b9f71f9SNicholas Piggin MCE_RA_ERROR_INDETERMINATE = 0, 877b9f71f9SNicholas Piggin MCE_RA_ERROR_IFETCH = 1, 8890df4bfbSNicholas Piggin MCE_RA_ERROR_IFETCH_FOREIGN = 2, 8990df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3, 9090df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4, 9190df4bfbSNicholas Piggin MCE_RA_ERROR_LOAD = 5, 9290df4bfbSNicholas Piggin MCE_RA_ERROR_STORE = 6, 9390df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7, 9490df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8, 9590df4bfbSNicholas Piggin MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9, 967b9f71f9SNicholas Piggin }; 977b9f71f9SNicholas Piggin 987b9f71f9SNicholas Piggin enum MCE_LinkErrorType { 997b9f71f9SNicholas Piggin MCE_LINK_ERROR_INDETERMINATE = 0, 1007b9f71f9SNicholas Piggin MCE_LINK_ERROR_IFETCH_TIMEOUT = 1, 1017b9f71f9SNicholas Piggin MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2, 1027b9f71f9SNicholas Piggin MCE_LINK_ERROR_LOAD_TIMEOUT = 3, 1037b9f71f9SNicholas Piggin MCE_LINK_ERROR_STORE_TIMEOUT = 4, 1047b9f71f9SNicholas Piggin MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5, 1057b9f71f9SNicholas Piggin }; 1067b9f71f9SNicholas Piggin 10736df96f8SMahesh Salgaonkar struct machine_check_event { 108cda6618dSMahesh Salgaonkar enum MCE_Version version:8; 109cda6618dSMahesh Salgaonkar u8 in_use; 110cda6618dSMahesh Salgaonkar enum MCE_Severity severity:8; 111cda6618dSMahesh Salgaonkar enum MCE_Initiator initiator:8; 112cda6618dSMahesh Salgaonkar enum MCE_ErrorType error_type:8; 11350dbabe0SMahesh Salgaonkar enum MCE_ErrorClass error_class:8; 114cda6618dSMahesh Salgaonkar enum MCE_Disposition disposition:8; 115cda6618dSMahesh Salgaonkar bool sync_error; 116cda6618dSMahesh Salgaonkar u16 cpu; 117cda6618dSMahesh Salgaonkar u64 gpr3; 118cda6618dSMahesh Salgaonkar u64 srr0; 119cda6618dSMahesh Salgaonkar u64 srr1; 120cda6618dSMahesh Salgaonkar union { 12136df96f8SMahesh Salgaonkar struct { 12236df96f8SMahesh Salgaonkar enum MCE_UeErrorType ue_error_type:8; 123cda6618dSMahesh Salgaonkar u8 effective_address_provided; 124cda6618dSMahesh Salgaonkar u8 physical_address_provided; 125*895e3dceSBalbir Singh u8 ignore_event; 126*895e3dceSBalbir Singh u8 reserved_1[4]; 127cda6618dSMahesh Salgaonkar u64 effective_address; 128cda6618dSMahesh Salgaonkar u64 physical_address; 129cda6618dSMahesh Salgaonkar u8 reserved_2[8]; 13036df96f8SMahesh Salgaonkar } ue_error; 13136df96f8SMahesh Salgaonkar 13236df96f8SMahesh Salgaonkar struct { 13336df96f8SMahesh Salgaonkar enum MCE_SlbErrorType slb_error_type:8; 134cda6618dSMahesh Salgaonkar u8 effective_address_provided; 135cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 136cda6618dSMahesh Salgaonkar u64 effective_address; 137cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 13836df96f8SMahesh Salgaonkar } slb_error; 13936df96f8SMahesh Salgaonkar 14036df96f8SMahesh Salgaonkar struct { 14136df96f8SMahesh Salgaonkar enum MCE_EratErrorType erat_error_type:8; 142cda6618dSMahesh Salgaonkar u8 effective_address_provided; 143cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 144cda6618dSMahesh Salgaonkar u64 effective_address; 145cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 14636df96f8SMahesh Salgaonkar } erat_error; 14736df96f8SMahesh Salgaonkar 14836df96f8SMahesh Salgaonkar struct { 14936df96f8SMahesh Salgaonkar enum MCE_TlbErrorType tlb_error_type:8; 150cda6618dSMahesh Salgaonkar u8 effective_address_provided; 151cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 152cda6618dSMahesh Salgaonkar u64 effective_address; 153cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 15436df96f8SMahesh Salgaonkar } tlb_error; 1557b9f71f9SNicholas Piggin 1567b9f71f9SNicholas Piggin struct { 1577b9f71f9SNicholas Piggin enum MCE_UserErrorType user_error_type:8; 158cda6618dSMahesh Salgaonkar u8 effective_address_provided; 159cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 160cda6618dSMahesh Salgaonkar u64 effective_address; 161cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 1627b9f71f9SNicholas Piggin } user_error; 1637b9f71f9SNicholas Piggin 1647b9f71f9SNicholas Piggin struct { 1657b9f71f9SNicholas Piggin enum MCE_RaErrorType ra_error_type:8; 166cda6618dSMahesh Salgaonkar u8 effective_address_provided; 167cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 168cda6618dSMahesh Salgaonkar u64 effective_address; 169cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 1707b9f71f9SNicholas Piggin } ra_error; 1717b9f71f9SNicholas Piggin 1727b9f71f9SNicholas Piggin struct { 1737b9f71f9SNicholas Piggin enum MCE_LinkErrorType link_error_type:8; 174cda6618dSMahesh Salgaonkar u8 effective_address_provided; 175cda6618dSMahesh Salgaonkar u8 reserved_1[6]; 176cda6618dSMahesh Salgaonkar u64 effective_address; 177cda6618dSMahesh Salgaonkar u8 reserved_2[16]; 1787b9f71f9SNicholas Piggin } link_error; 17936df96f8SMahesh Salgaonkar } u; 18036df96f8SMahesh Salgaonkar }; 18136df96f8SMahesh Salgaonkar 18236df96f8SMahesh Salgaonkar struct mce_error_info { 18336df96f8SMahesh Salgaonkar enum MCE_ErrorType error_type:8; 18436df96f8SMahesh Salgaonkar union { 18536df96f8SMahesh Salgaonkar enum MCE_UeErrorType ue_error_type:8; 18636df96f8SMahesh Salgaonkar enum MCE_SlbErrorType slb_error_type:8; 18736df96f8SMahesh Salgaonkar enum MCE_EratErrorType erat_error_type:8; 18836df96f8SMahesh Salgaonkar enum MCE_TlbErrorType tlb_error_type:8; 1897b9f71f9SNicholas Piggin enum MCE_UserErrorType user_error_type:8; 1907b9f71f9SNicholas Piggin enum MCE_RaErrorType ra_error_type:8; 1917b9f71f9SNicholas Piggin enum MCE_LinkErrorType link_error_type:8; 19236df96f8SMahesh Salgaonkar } u; 193c1bbf387SNicholas Piggin enum MCE_Severity severity:8; 194c1bbf387SNicholas Piggin enum MCE_Initiator initiator:8; 19550dbabe0SMahesh Salgaonkar enum MCE_ErrorClass error_class:8; 196cda6618dSMahesh Salgaonkar bool sync_error; 197*895e3dceSBalbir Singh bool ignore_event; 19836df96f8SMahesh Salgaonkar }; 19936df96f8SMahesh Salgaonkar 20036df96f8SMahesh Salgaonkar #define MAX_MC_EVT 100 20136df96f8SMahesh Salgaonkar 20236df96f8SMahesh Salgaonkar /* Release flags for get_mce_event() */ 20336df96f8SMahesh Salgaonkar #define MCE_EVENT_RELEASE true 20436df96f8SMahesh Salgaonkar #define MCE_EVENT_DONTRELEASE false 20536df96f8SMahesh Salgaonkar 20636df96f8SMahesh Salgaonkar extern void save_mce_event(struct pt_regs *regs, long handled, 20755672ecfSMahesh Salgaonkar struct mce_error_info *mce_err, uint64_t nip, 208ba41e1e1SBalbir Singh uint64_t addr, uint64_t phys_addr); 20936df96f8SMahesh Salgaonkar extern int get_mce_event(struct machine_check_event *mce, bool release); 21036df96f8SMahesh Salgaonkar extern void release_mce_event(void); 211b5ff4211SMahesh Salgaonkar extern void machine_check_queue_event(void); 21263f44d65SMichael Ellerman extern void machine_check_print_event_info(struct machine_check_event *evt, 213c0577201SPaul Mackerras bool user_mode, bool in_guest); 2147f177f98SGanesh Goudar unsigned long addr_to_pfn(struct pt_regs *regs, unsigned long addr); 215a43c1590SMahesh Salgaonkar #ifdef CONFIG_PPC_BOOK3S_64 216a43c1590SMahesh Salgaonkar void flush_and_reload_slb(void); 217a43c1590SMahesh Salgaonkar #endif /* CONFIG_PPC_BOOK3S_64 */ 218e22a2274SMahesh Salgaonkar #endif /* __ASM_PPC64_MCE_H__ */ 219