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1276 |
phoenix |
/*
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* arch/s390/kernel/s390mach.h
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* S/390 data definitions for machine check processing
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*
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* S390 version
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* Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
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* Author(s): Ingo Adlung (adlung@de.ibm.com)
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*/
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#ifndef __s390mach_h
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#define __s390mach_h
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#include <asm/types.h>
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typedef struct _mci {
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__u32 sd : 1; /* 00 system damage */
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__u32 pd : 1; /* 01 instruction-processing damage */
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__u32 sr : 1; /* 02 system recovery */
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__u32 to_be_defined_1 : 4; /* 03-06 */
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__u32 dg : 1; /* 07 degradation */
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__u32 w : 1; /* 08 warning pending */
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__u32 cp : 1; /* 09 channel-report pending */
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__u32 to_be_defined_2 : 6; /* 10-15 */
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__u32 se : 1; /* 16 storage error uncorrected */
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__u32 sc : 1; /* 17 storage error corrected */
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__u32 ke : 1; /* 18 storage-key error uncorrected */
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__u32 ds : 1; /* 19 storage degradation */
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__u32 to_be_defined_3 : 4; /* 20-23 */
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__u32 fa : 1; /* 24 failing storage address validity */
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__u32 to_be_defined_4 : 7; /* 25-31 */
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__u32 ie : 1; /* 32 indirect storage error */
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__u32 to_be_defined_5 : 31; /* 33-63 */
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} mci_t;
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//
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// machine-check-interruption code
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//
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typedef struct _mcic {
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union _mcc {
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__u64 mcl; /* machine check int. code - long info */
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mci_t mcd; /* machine check int. code - details */
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} mcc;
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} __attribute__ ((packed)) mcic_t;
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//
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// Channel Report Word
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//
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typedef struct _crw {
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__u32 res1 : 1; /* reserved zero */
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__u32 slct : 1; /* solicited */
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__u32 oflw : 1; /* overflow */
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__u32 chn : 1; /* chained */
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__u32 rsc : 4; /* reporting source code */
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__u32 anc : 1; /* ancillary report */
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__u32 res2 : 1; /* reserved zero */
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__u32 erc : 6; /* error-recovery code */
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__u32 rsid : 16; /* reporting-source ID */
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} __attribute__ ((packed)) crw_t;
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#define CRW_RSC_MONITOR 0x2 /* monitoring facility */
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#define CRW_RSC_SCH 0x3 /* subchannel */
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#define CRW_RSC_CPATH 0x4 /* channel path */
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#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */
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#define CRW_RSC_CSS 0xB /* channel subsystem */
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#define CRW_ERC_EVENT 0x00 /* event information pending */
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#define CRW_ERC_AVAIL 0x01 /* available */
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#define CRW_ERC_INIT 0x02 /* initialized */
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#define CRW_ERC_TERROR 0x03 /* temporary error */
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#define CRW_ERC_IPARM 0x04 /* installed parm initialized */
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#define CRW_ERC_TERM 0x05 /* terminal */
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#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */
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#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */
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#define CRW_ERC_PMOD 0x08 /* installed parameters modified */
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#define MAX_CRW_PENDING 1024
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#define MAX_MACH_PENDING 1024
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//
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// CRW Entry
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//
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typedef struct _crwe {
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crw_t crw;
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struct _crwe *crwe_next;
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} __attribute__ ((packed)) crwe_t;
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typedef struct _mache {
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spinlock_t lock;
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unsigned int status;
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mcic_t mcic;
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union _mc {
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crwe_t *crwe; /* CRW if applicable */
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} mc;
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struct _mache *next;
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struct _mache *prev;
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} mache_t;
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#define MCHCHK_STATUS_TO_PROCESS 0x00000001
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#define MCHCHK_STATUS_IN_PROGRESS 0x00000002
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#define MCHCHK_STATUS_WAITING 0x00000004
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void s390_init_machine_check( void );
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void s390_do_machine_check ( void );
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void s390_do_crw_pending ( crwe_t *pcrwe );
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extern __inline__ int stcrw( __u32 *pcrw )
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{
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int ccode;
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__asm__ __volatile__(
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"STCRW 0(%1)\n\t"
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"IPM %0\n\t"
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"SRL %0,28\n\t"
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: "=d" (ccode) : "a" (pcrw)
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: "cc", "1" );
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return ccode;
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}
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#endif /* __s390mach */
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