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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* SPDX-License-Identifier: GPL-2.0 */ /* * Machine check handler definitions * * Copyright IBM Corp. 2000, 2009 * Author(s): Ingo Adlung <adlung@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Cornelia Huck <cornelia.huck@de.ibm.com>, */ #ifndef _ASM_S390_NMI_H #define _ASM_S390_NMI_H #include <linux/bits.h> #include <linux/types.h> #define MCIC_SUBCLASS_MASK (1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \ 1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \ 1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \ 1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \ 1ULL<<45 | 1ULL<<44) #define MCCK_CODE_SYSTEM_DAMAGE BIT(63) #define MCCK_CODE_EXT_DAMAGE BIT(63 - 5) #define MCCK_CODE_CP BIT(63 - 9) #define MCCK_CODE_STG_ERROR BIT(63 - 16) #define MCCK_CODE_STG_KEY_ERROR BIT(63 - 18) #define MCCK_CODE_STG_DEGRAD BIT(63 - 19) #define MCCK_CODE_PSW_MWP_VALID BIT(63 - 20) #define MCCK_CODE_PSW_IA_VALID BIT(63 - 23) #define MCCK_CODE_STG_FAIL_ADDR BIT(63 - 24) #define MCCK_CODE_CR_VALID BIT(63 - 29) #define MCCK_CODE_GS_VALID BIT(63 - 36) #define MCCK_CODE_FC_VALID BIT(63 - 43) #define MCCK_CODE_CPU_TIMER_VALID BIT(63 - 46) #ifndef __ASSEMBLY__ union mci { unsigned long val; struct { u64 sd : 1; /* 00 system damage */ u64 pd : 1; /* 01 instruction-processing damage */ u64 sr : 1; /* 02 system recovery */ u64 : 1; /* 03 */ u64 cd : 1; /* 04 timing-facility damage */ u64 ed : 1; /* 05 external damage */ u64 : 1; /* 06 */ u64 dg : 1; /* 07 degradation */ u64 w : 1; /* 08 warning pending */ u64 cp : 1; /* 09 channel-report pending */ u64 sp : 1; /* 10 service-processor damage */ u64 ck : 1; /* 11 channel-subsystem damage */ u64 : 2; /* 12-13 */ u64 b : 1; /* 14 backed up */ u64 : 1; /* 15 */ u64 se : 1; /* 16 storage error uncorrected */ u64 sc : 1; /* 17 storage error corrected */ u64 ke : 1; /* 18 storage-key error uncorrected */ u64 ds : 1; /* 19 storage degradation */ u64 wp : 1; /* 20 psw mwp validity */ u64 ms : 1; /* 21 psw mask and key validity */ u64 pm : 1; /* 22 psw program mask and cc validity */ u64 ia : 1; /* 23 psw instruction address validity */ u64 fa : 1; /* 24 failing storage address validity */ u64 vr : 1; /* 25 vector register validity */ u64 ec : 1; /* 26 external damage code validity */ u64 fp : 1; /* 27 floating point register validity */ u64 gr : 1; /* 28 general register validity */ u64 cr : 1; /* 29 control register validity */ u64 : 1; /* 30 */ u64 st : 1; /* 31 storage logical validity */ u64 ie : 1; /* 32 indirect storage error */ u64 ar : 1; /* 33 access register validity */ u64 da : 1; /* 34 delayed access exception */ u64 : 1; /* 35 */ u64 gs : 1; /* 36 guarded storage registers validity */ u64 : 5; /* 37-41 */ u64 pr : 1; /* 42 tod programmable register validity */ u64 fc : 1; /* 43 fp control register validity */ u64 ap : 1; /* 44 ancillary report */ u64 : 1; /* 45 */ u64 ct : 1; /* 46 cpu timer validity */ u64 cc : 1; /* 47 clock comparator validity */ u64 : 16; /* 47-63 */ }; }; #define MCESA_ORIGIN_MASK (~0x3ffUL) #define MCESA_LC_MASK (0xfUL) #define MCESA_MIN_SIZE (1024) #define MCESA_MAX_SIZE (2048) struct mcesa { u8 vector_save_area[1024]; u8 guarded_storage_save_area[32]; }; struct pt_regs; void nmi_alloc_mcesa_early(u64 *mcesad); int nmi_alloc_mcesa(u64 *mcesad); void nmi_free_mcesa(u64 *mcesad); void s390_handle_mcck(struct pt_regs *regs); void __s390_handle_mcck(void); int s390_do_machine_check(struct pt_regs *regs); #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_NMI_H */ |