1e22a2274SMahesh Salgaonkar /* 2e22a2274SMahesh Salgaonkar * Machine check exception header file. 3e22a2274SMahesh Salgaonkar * 4e22a2274SMahesh Salgaonkar * This program is free software; you can redistribute it and/or modify 5e22a2274SMahesh Salgaonkar * it under the terms of the GNU General Public License as published by 6e22a2274SMahesh Salgaonkar * the Free Software Foundation; either version 2 of the License, or 7e22a2274SMahesh Salgaonkar * (at your option) any later version. 8e22a2274SMahesh Salgaonkar * 9e22a2274SMahesh Salgaonkar * This program is distributed in the hope that it will be useful, 10e22a2274SMahesh Salgaonkar * but WITHOUT ANY WARRANTY; without even the implied warranty of 11e22a2274SMahesh Salgaonkar * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12e22a2274SMahesh Salgaonkar * GNU General Public License for more details. 13e22a2274SMahesh Salgaonkar * 14e22a2274SMahesh Salgaonkar * You should have received a copy of the GNU General Public License 15e22a2274SMahesh Salgaonkar * along with this program; if not, write to the Free Software 16e22a2274SMahesh Salgaonkar * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17e22a2274SMahesh Salgaonkar * 18e22a2274SMahesh Salgaonkar * Copyright 2013 IBM Corporation 19e22a2274SMahesh Salgaonkar * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> 20e22a2274SMahesh Salgaonkar */ 21e22a2274SMahesh Salgaonkar 22e22a2274SMahesh Salgaonkar #ifndef __ASM_PPC64_MCE_H__ 23e22a2274SMahesh Salgaonkar #define __ASM_PPC64_MCE_H__ 24e22a2274SMahesh Salgaonkar 25e22a2274SMahesh Salgaonkar #include <linux/bitops.h> 26e22a2274SMahesh Salgaonkar 2736df96f8SMahesh Salgaonkar enum MCE_Version { 2836df96f8SMahesh Salgaonkar MCE_V1 = 1, 2936df96f8SMahesh Salgaonkar }; 3036df96f8SMahesh Salgaonkar 3136df96f8SMahesh Salgaonkar enum MCE_Severity { 3236df96f8SMahesh Salgaonkar MCE_SEV_NO_ERROR = 0, 3336df96f8SMahesh Salgaonkar MCE_SEV_WARNING = 1, 3436df96f8SMahesh Salgaonkar MCE_SEV_ERROR_SYNC = 2, 3536df96f8SMahesh Salgaonkar MCE_SEV_FATAL = 3, 3636df96f8SMahesh Salgaonkar }; 3736df96f8SMahesh Salgaonkar 3836df96f8SMahesh Salgaonkar enum MCE_Disposition { 3936df96f8SMahesh Salgaonkar MCE_DISPOSITION_RECOVERED = 0, 4036df96f8SMahesh Salgaonkar MCE_DISPOSITION_NOT_RECOVERED = 1, 4136df96f8SMahesh Salgaonkar }; 4236df96f8SMahesh Salgaonkar 4336df96f8SMahesh Salgaonkar enum MCE_Initiator { 4436df96f8SMahesh Salgaonkar MCE_INITIATOR_UNKNOWN = 0, 4536df96f8SMahesh Salgaonkar MCE_INITIATOR_CPU = 1, 4636df96f8SMahesh Salgaonkar }; 4736df96f8SMahesh Salgaonkar 4836df96f8SMahesh Salgaonkar enum MCE_ErrorType { 4936df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_UNKNOWN = 0, 5036df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_UE = 1, 5136df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_SLB = 2, 5236df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_ERAT = 3, 5336df96f8SMahesh Salgaonkar MCE_ERROR_TYPE_TLB = 4, 547b9f71f9SNicholas Piggin MCE_ERROR_TYPE_USER = 5, 557b9f71f9SNicholas Piggin MCE_ERROR_TYPE_RA = 6, 567b9f71f9SNicholas Piggin MCE_ERROR_TYPE_LINK = 7, 5736df96f8SMahesh Salgaonkar }; 5836df96f8SMahesh Salgaonkar 5936df96f8SMahesh Salgaonkar enum MCE_UeErrorType { 6036df96f8SMahesh Salgaonkar MCE_UE_ERROR_INDETERMINATE = 0, 6136df96f8SMahesh Salgaonkar MCE_UE_ERROR_IFETCH = 1, 6236df96f8SMahesh Salgaonkar MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2, 6336df96f8SMahesh Salgaonkar MCE_UE_ERROR_LOAD_STORE = 3, 6436df96f8SMahesh Salgaonkar MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4, 6536df96f8SMahesh Salgaonkar }; 6636df96f8SMahesh Salgaonkar 6736df96f8SMahesh Salgaonkar enum MCE_SlbErrorType { 6836df96f8SMahesh Salgaonkar MCE_SLB_ERROR_INDETERMINATE = 0, 6936df96f8SMahesh Salgaonkar MCE_SLB_ERROR_PARITY = 1, 7036df96f8SMahesh Salgaonkar MCE_SLB_ERROR_MULTIHIT = 2, 7136df96f8SMahesh Salgaonkar }; 7236df96f8SMahesh Salgaonkar 7336df96f8SMahesh Salgaonkar enum MCE_EratErrorType { 7436df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_INDETERMINATE = 0, 7536df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_PARITY = 1, 7636df96f8SMahesh Salgaonkar MCE_ERAT_ERROR_MULTIHIT = 2, 7736df96f8SMahesh Salgaonkar }; 7836df96f8SMahesh Salgaonkar 7936df96f8SMahesh Salgaonkar enum MCE_TlbErrorType { 8036df96f8SMahesh Salgaonkar MCE_TLB_ERROR_INDETERMINATE = 0, 8136df96f8SMahesh Salgaonkar MCE_TLB_ERROR_PARITY = 1, 8236df96f8SMahesh Salgaonkar MCE_TLB_ERROR_MULTIHIT = 2, 8336df96f8SMahesh Salgaonkar }; 8436df96f8SMahesh Salgaonkar 857b9f71f9SNicholas Piggin enum MCE_UserErrorType { 867b9f71f9SNicholas Piggin MCE_USER_ERROR_INDETERMINATE = 0, 877b9f71f9SNicholas Piggin MCE_USER_ERROR_TLBIE = 1, 887b9f71f9SNicholas Piggin }; 897b9f71f9SNicholas Piggin 907b9f71f9SNicholas Piggin enum MCE_RaErrorType { 917b9f71f9SNicholas Piggin MCE_RA_ERROR_INDETERMINATE = 0, 927b9f71f9SNicholas Piggin MCE_RA_ERROR_IFETCH = 1, 9390df4bfbSNicholas Piggin MCE_RA_ERROR_IFETCH_FOREIGN = 2, 9490df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3, 9590df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4, 9690df4bfbSNicholas Piggin MCE_RA_ERROR_LOAD = 5, 9790df4bfbSNicholas Piggin MCE_RA_ERROR_STORE = 6, 9890df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7, 9990df4bfbSNicholas Piggin MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8, 10090df4bfbSNicholas Piggin MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9, 1017b9f71f9SNicholas Piggin }; 1027b9f71f9SNicholas Piggin 1037b9f71f9SNicholas Piggin enum MCE_LinkErrorType { 1047b9f71f9SNicholas Piggin MCE_LINK_ERROR_INDETERMINATE = 0, 1057b9f71f9SNicholas Piggin MCE_LINK_ERROR_IFETCH_TIMEOUT = 1, 1067b9f71f9SNicholas Piggin MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2, 1077b9f71f9SNicholas Piggin MCE_LINK_ERROR_LOAD_TIMEOUT = 3, 1087b9f71f9SNicholas Piggin MCE_LINK_ERROR_STORE_TIMEOUT = 4, 1097b9f71f9SNicholas Piggin MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5, 1107b9f71f9SNicholas Piggin }; 1117b9f71f9SNicholas Piggin 11236df96f8SMahesh Salgaonkar struct machine_check_event { 11336df96f8SMahesh Salgaonkar enum MCE_Version version:8; /* 0x00 */ 11436df96f8SMahesh Salgaonkar uint8_t in_use; /* 0x01 */ 11536df96f8SMahesh Salgaonkar enum MCE_Severity severity:8; /* 0x02 */ 11636df96f8SMahesh Salgaonkar enum MCE_Initiator initiator:8; /* 0x03 */ 11736df96f8SMahesh Salgaonkar enum MCE_ErrorType error_type:8; /* 0x04 */ 11836df96f8SMahesh Salgaonkar enum MCE_Disposition disposition:8; /* 0x05 */ 11936df96f8SMahesh Salgaonkar uint8_t reserved_1[2]; /* 0x06 */ 12036df96f8SMahesh Salgaonkar uint64_t gpr3; /* 0x08 */ 12136df96f8SMahesh Salgaonkar uint64_t srr0; /* 0x10 */ 12236df96f8SMahesh Salgaonkar uint64_t srr1; /* 0x18 */ 12336df96f8SMahesh Salgaonkar union { /* 0x20 */ 12436df96f8SMahesh Salgaonkar struct { 12536df96f8SMahesh Salgaonkar enum MCE_UeErrorType ue_error_type:8; 12636df96f8SMahesh Salgaonkar uint8_t effective_address_provided; 12736df96f8SMahesh Salgaonkar uint8_t physical_address_provided; 12836df96f8SMahesh Salgaonkar uint8_t reserved_1[5]; 12936df96f8SMahesh Salgaonkar uint64_t effective_address; 13036df96f8SMahesh Salgaonkar uint64_t physical_address; 13136df96f8SMahesh Salgaonkar uint8_t reserved_2[8]; 13236df96f8SMahesh Salgaonkar } ue_error; 13336df96f8SMahesh Salgaonkar 13436df96f8SMahesh Salgaonkar struct { 13536df96f8SMahesh Salgaonkar enum MCE_SlbErrorType slb_error_type:8; 13636df96f8SMahesh Salgaonkar uint8_t effective_address_provided; 13736df96f8SMahesh Salgaonkar uint8_t reserved_1[6]; 13836df96f8SMahesh Salgaonkar uint64_t effective_address; 13936df96f8SMahesh Salgaonkar uint8_t reserved_2[16]; 14036df96f8SMahesh Salgaonkar } slb_error; 14136df96f8SMahesh Salgaonkar 14236df96f8SMahesh Salgaonkar struct { 14336df96f8SMahesh Salgaonkar enum MCE_EratErrorType erat_error_type:8; 14436df96f8SMahesh Salgaonkar uint8_t effective_address_provided; 14536df96f8SMahesh Salgaonkar uint8_t reserved_1[6]; 14636df96f8SMahesh Salgaonkar uint64_t effective_address; 14736df96f8SMahesh Salgaonkar uint8_t reserved_2[16]; 14836df96f8SMahesh Salgaonkar } erat_error; 14936df96f8SMahesh Salgaonkar 15036df96f8SMahesh Salgaonkar struct { 15136df96f8SMahesh Salgaonkar enum MCE_TlbErrorType tlb_error_type:8; 15236df96f8SMahesh Salgaonkar uint8_t effective_address_provided; 15336df96f8SMahesh Salgaonkar uint8_t reserved_1[6]; 15436df96f8SMahesh Salgaonkar uint64_t effective_address; 15536df96f8SMahesh Salgaonkar uint8_t reserved_2[16]; 15636df96f8SMahesh Salgaonkar } tlb_error; 1577b9f71f9SNicholas Piggin 1587b9f71f9SNicholas Piggin struct { 1597b9f71f9SNicholas Piggin enum MCE_UserErrorType user_error_type:8; 1607b9f71f9SNicholas Piggin uint8_t effective_address_provided; 1617b9f71f9SNicholas Piggin uint8_t reserved_1[6]; 1627b9f71f9SNicholas Piggin uint64_t effective_address; 1637b9f71f9SNicholas Piggin uint8_t reserved_2[16]; 1647b9f71f9SNicholas Piggin } user_error; 1657b9f71f9SNicholas Piggin 1667b9f71f9SNicholas Piggin struct { 1677b9f71f9SNicholas Piggin enum MCE_RaErrorType ra_error_type:8; 1687b9f71f9SNicholas Piggin uint8_t effective_address_provided; 1697b9f71f9SNicholas Piggin uint8_t reserved_1[6]; 1707b9f71f9SNicholas Piggin uint64_t effective_address; 1717b9f71f9SNicholas Piggin uint8_t reserved_2[16]; 1727b9f71f9SNicholas Piggin } ra_error; 1737b9f71f9SNicholas Piggin 1747b9f71f9SNicholas Piggin struct { 1757b9f71f9SNicholas Piggin enum MCE_LinkErrorType link_error_type:8; 1767b9f71f9SNicholas Piggin uint8_t effective_address_provided; 1777b9f71f9SNicholas Piggin uint8_t reserved_1[6]; 1787b9f71f9SNicholas Piggin uint64_t effective_address; 1797b9f71f9SNicholas Piggin uint8_t reserved_2[16]; 1807b9f71f9SNicholas Piggin } link_error; 18136df96f8SMahesh Salgaonkar } u; 18236df96f8SMahesh Salgaonkar }; 18336df96f8SMahesh Salgaonkar 18436df96f8SMahesh Salgaonkar struct mce_error_info { 18536df96f8SMahesh Salgaonkar enum MCE_ErrorType error_type:8; 18636df96f8SMahesh Salgaonkar union { 18736df96f8SMahesh Salgaonkar enum MCE_UeErrorType ue_error_type:8; 18836df96f8SMahesh Salgaonkar enum MCE_SlbErrorType slb_error_type:8; 18936df96f8SMahesh Salgaonkar enum MCE_EratErrorType erat_error_type:8; 19036df96f8SMahesh Salgaonkar enum MCE_TlbErrorType tlb_error_type:8; 1917b9f71f9SNicholas Piggin enum MCE_UserErrorType user_error_type:8; 1927b9f71f9SNicholas Piggin enum MCE_RaErrorType ra_error_type:8; 1937b9f71f9SNicholas Piggin enum MCE_LinkErrorType link_error_type:8; 19436df96f8SMahesh Salgaonkar } u; 195c1bbf387SNicholas Piggin enum MCE_Severity severity:8; 196c1bbf387SNicholas Piggin enum MCE_Initiator initiator:8; 19736df96f8SMahesh Salgaonkar }; 19836df96f8SMahesh Salgaonkar 19936df96f8SMahesh Salgaonkar #define MAX_MC_EVT 100 20036df96f8SMahesh Salgaonkar 20136df96f8SMahesh Salgaonkar /* Release flags for get_mce_event() */ 20236df96f8SMahesh Salgaonkar #define MCE_EVENT_RELEASE true 20336df96f8SMahesh Salgaonkar #define MCE_EVENT_DONTRELEASE false 20436df96f8SMahesh Salgaonkar 20536df96f8SMahesh Salgaonkar extern void save_mce_event(struct pt_regs *regs, long handled, 20655672ecfSMahesh Salgaonkar struct mce_error_info *mce_err, uint64_t nip, 207ba41e1e1SBalbir Singh uint64_t addr, uint64_t phys_addr); 20836df96f8SMahesh Salgaonkar extern int get_mce_event(struct machine_check_event *mce, bool release); 20936df96f8SMahesh Salgaonkar extern void release_mce_event(void); 210b5ff4211SMahesh Salgaonkar extern void machine_check_queue_event(void); 21163f44d65SMichael Ellerman extern void machine_check_print_event_info(struct machine_check_event *evt, 212c0577201SPaul Mackerras bool user_mode, bool in_guest); 213*7f177f98SGanesh Goudar unsigned long addr_to_pfn(struct pt_regs *regs, unsigned long addr); 214a43c1590SMahesh Salgaonkar #ifdef CONFIG_PPC_BOOK3S_64 215a43c1590SMahesh Salgaonkar void flush_and_reload_slb(void); 216a43c1590SMahesh Salgaonkar #endif /* CONFIG_PPC_BOOK3S_64 */ 217e22a2274SMahesh Salgaonkar #endif /* __ASM_PPC64_MCE_H__ */ 218