cregit-Linux how code gets into the kernel

Release 4.14 arch/s390/include/asm/nmi.h

/* 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>,
 *               Heiko Carstens <heiko.carstens@de.ibm.com>,
 */

#ifndef _ASM_S390_NMI_H

#define _ASM_S390_NMI_H

#include <linux/const.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		_BITUL(63)

#define MCCK_CODE_EXT_DAMAGE		_BITUL(63 - 5)

#define MCCK_CODE_CP			_BITUL(63 - 9)

#define MCCK_CODE_CPU_TIMER_VALID	_BITUL(63 - 46)

#define MCCK_CODE_PSW_MWP_VALID		_BITUL(63 - 20)

#define MCCK_CODE_PSW_IA_VALID		_BITUL(63 - 23)


#define MCCK_CR14_CR_PENDING_SUB_MASK	(1 << 28)

#define MCCK_CR14_RECOVERY_SUB_MASK	(1 << 27)

#define MCCK_CR14_DEGRAD_SUB_MASK	(1 << 26)

#define MCCK_CR14_EXT_DAMAGE_SUB_MASK	(1 << 25)

#define MCCK_CR14_WARN_SUB_MASK		(1 << 24)

#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)


struct mcesa {
	
u8 vector_save_area[1024];
	
u8 guarded_storage_save_area[32];
};

struct pt_regs;

extern void s390_handle_mcck(void);
extern void s390_do_machine_check(struct pt_regs *regs);

#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_NMI_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Heiko Carstens28574.22%440.00%
Martin Schwidefsky4110.68%220.00%
QingFeng Hao328.33%220.00%
Hendrik Brueckner256.51%110.00%
Greg Kroah-Hartman10.26%110.00%
Total384100.00%10100.00%
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