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https://github.com/torvalds/linux
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dc6e15556a
Remove all the casts to and from the machine check interruption code. This patch changes struct mci to a union, which contains an anonymous structure with the already known bits and in addition an unsigned long field, which contains the raw machine check interruption code. This allows to simply assign and decoce the interruption code value without the need for all those casts we had all the time. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
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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 <adlung@de.ibm.com>,
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* Martin Schwidefsky <schwidefsky@de.ibm.com>,
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* Cornelia Huck <cornelia.huck@de.ibm.com>,
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* Heiko Carstens <heiko.carstens@de.ibm.com>,
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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/const.h>
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#include <linux/types.h>
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#define MCCK_CODE_SYSTEM_DAMAGE _BITUL(63)
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#define MCCK_CODE_CPU_TIMER_VALID _BITUL(63 - 46)
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#define MCCK_CODE_PSW_MWP_VALID _BITUL(63 - 20)
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#define MCCK_CODE_PSW_IA_VALID _BITUL(63 - 23)
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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 : 7; /* 35-41 */
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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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struct pt_regs;
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extern void s390_handle_mcck(void);
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extern void 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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