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110 lines
3.6 KiB
110 lines
3.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Machine check handler definitions |
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* |
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* Copyright IBM Corp. 2000, 2009 |
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* Author(s): Ingo Adlung <[email protected]>, |
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* Martin Schwidefsky <[email protected]>, |
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* Cornelia Huck <[email protected]>, |
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* Heiko Carstens <[email protected]>, |
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*/ |
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#ifndef _ASM_S390_NMI_H |
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#define _ASM_S390_NMI_H |
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#include <linux/bits.h> |
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#include <linux/types.h> |
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#define MCIC_SUBCLASS_MASK (1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \ |
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1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \ |
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1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \ |
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1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \ |
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1ULL<<45 | 1ULL<<44) |
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#define MCCK_CODE_SYSTEM_DAMAGE BIT(63) |
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#define MCCK_CODE_EXT_DAMAGE BIT(63 - 5) |
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#define MCCK_CODE_CP BIT(63 - 9) |
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#define MCCK_CODE_STG_ERROR BIT(63 - 16) |
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#define MCCK_CODE_STG_KEY_ERROR BIT(63 - 18) |
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#define MCCK_CODE_STG_DEGRAD BIT(63 - 19) |
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#define MCCK_CODE_PSW_MWP_VALID BIT(63 - 20) |
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#define MCCK_CODE_PSW_IA_VALID BIT(63 - 23) |
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#define MCCK_CODE_STG_FAIL_ADDR BIT(63 - 24) |
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#define MCCK_CODE_CR_VALID BIT(63 - 29) |
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#define MCCK_CODE_GS_VALID BIT(63 - 36) |
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#define MCCK_CODE_FC_VALID BIT(63 - 43) |
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#define MCCK_CODE_CPU_TIMER_VALID BIT(63 - 46) |
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#ifndef __ASSEMBLY__ |
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union mci { |
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unsigned long val; |
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struct { |
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u64 sd : 1; /* 00 system damage */ |
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u64 pd : 1; /* 01 instruction-processing damage */ |
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u64 sr : 1; /* 02 system recovery */ |
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u64 : 1; /* 03 */ |
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u64 cd : 1; /* 04 timing-facility damage */ |
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u64 ed : 1; /* 05 external damage */ |
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u64 : 1; /* 06 */ |
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u64 dg : 1; /* 07 degradation */ |
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u64 w : 1; /* 08 warning pending */ |
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u64 cp : 1; /* 09 channel-report pending */ |
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u64 sp : 1; /* 10 service-processor damage */ |
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u64 ck : 1; /* 11 channel-subsystem damage */ |
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u64 : 2; /* 12-13 */ |
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u64 b : 1; /* 14 backed up */ |
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u64 : 1; /* 15 */ |
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u64 se : 1; /* 16 storage error uncorrected */ |
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u64 sc : 1; /* 17 storage error corrected */ |
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u64 ke : 1; /* 18 storage-key error uncorrected */ |
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u64 ds : 1; /* 19 storage degradation */ |
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u64 wp : 1; /* 20 psw mwp validity */ |
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u64 ms : 1; /* 21 psw mask and key validity */ |
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u64 pm : 1; /* 22 psw program mask and cc validity */ |
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u64 ia : 1; /* 23 psw instruction address validity */ |
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u64 fa : 1; /* 24 failing storage address validity */ |
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u64 vr : 1; /* 25 vector register validity */ |
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u64 ec : 1; /* 26 external damage code validity */ |
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u64 fp : 1; /* 27 floating point register validity */ |
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u64 gr : 1; /* 28 general register validity */ |
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u64 cr : 1; /* 29 control register validity */ |
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u64 : 1; /* 30 */ |
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u64 st : 1; /* 31 storage logical validity */ |
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u64 ie : 1; /* 32 indirect storage error */ |
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u64 ar : 1; /* 33 access register validity */ |
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u64 da : 1; /* 34 delayed access exception */ |
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u64 : 1; /* 35 */ |
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u64 gs : 1; /* 36 guarded storage registers validity */ |
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u64 : 5; /* 37-41 */ |
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u64 pr : 1; /* 42 tod programmable register validity */ |
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u64 fc : 1; /* 43 fp control register validity */ |
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u64 ap : 1; /* 44 ancillary report */ |
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u64 : 1; /* 45 */ |
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u64 ct : 1; /* 46 cpu timer validity */ |
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u64 cc : 1; /* 47 clock comparator validity */ |
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u64 : 16; /* 47-63 */ |
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}; |
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}; |
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#define MCESA_ORIGIN_MASK (~0x3ffUL) |
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#define MCESA_LC_MASK (0xfUL) |
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#define MCESA_MIN_SIZE (1024) |
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#define MCESA_MAX_SIZE (2048) |
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struct mcesa { |
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u8 vector_save_area[1024]; |
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u8 guarded_storage_save_area[32]; |
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}; |
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struct pt_regs; |
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void nmi_alloc_boot_cpu(struct lowcore *lc); |
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int nmi_alloc_per_cpu(struct lowcore *lc); |
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void nmi_free_per_cpu(struct lowcore *lc); |
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void s390_handle_mcck(void); |
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void __s390_handle_mcck(void); |
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int s390_do_machine_check(struct pt_regs *regs); |
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#endif /* __ASSEMBLY__ */ |
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#endif /* _ASM_S390_NMI_H */
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