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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 | /* * arch/s390/kernel/s390mach.h * S/390 data definitions for machine check processing * * S390 version * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation * Author(s): Ingo Adlung (adlung@de.ibm.com) */ #ifndef __s390mach_h #define __s390mach_h #include <asm/types.h> typedef struct _mci { __u32 to_be_defined_1 : 9; __u32 cp : 1; /* channel-report pending */ __u32 to_be_defined_2 : 22; __u32 to_be_defined_3; } mci_t; // // machine-check-interruption code // typedef struct _mcic { union _mcc { __u64 mcl; /* machine check int. code - long info */ mci_t mcd; /* machine check int. code - details */ } mcc; } __attribute__ ((packed)) mcic_t; // // Channel Report Word // typedef struct _crw { __u32 res1 : 1; /* reserved zero */ __u32 slct : 1; /* solicited */ __u32 oflw : 1; /* overflow */ __u32 chn : 1; /* chained */ __u32 rsc : 4; /* reporting source code */ __u32 anc : 1; /* ancillary report */ __u32 res2 : 1; /* reserved zero */ __u32 erc : 6; /* error-recovery code */ __u32 rsid : 16; /* reporting-source ID */ } __attribute__ ((packed)) crw_t; #define CRW_RSC_MONITOR 0x2 /* monitoring facility */ #define CRW_RSC_SCH 0x3 /* subchannel */ #define CRW_RSC_CPATH 0x4 /* channel path */ #define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */ #define CRW_RSC_CSS 0xB /* channel subsystem */ #define CRW_ERC_EVENT 0x00 /* event information pending */ #define CRW_ERC_AVAIL 0x01 /* available */ #define CRW_ERC_INIT 0x02 /* initialized */ #define CRW_ERC_TERROR 0x03 /* temporary error */ #define CRW_ERC_IPARM 0x04 /* installed parm initialized */ #define CRW_ERC_TERM 0x05 /* terminal */ #define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */ #define CRW_ERC_PERRI 0x07 /* perm. error, facility init */ #define CRW_ERC_PMOD 0x08 /* installed parameters modified */ #define MAX_CRW_PENDING 1024 #define MAX_MACH_PENDING 1024 // // CRW Entry // typedef struct _crwe { crw_t crw; struct _crwe *crwe_next; } __attribute__ ((packed)) crwe_t; typedef struct _mache { spinlock_t lock; unsigned int status; mcic_t mcic; union _mc { crwe_t *crwe; /* CRW if applicable */ } mc; struct _mache *next; struct _mache *prev; } mache_t; #define MCHCHK_STATUS_TO_PROCESS 0x00000001 #define MCHCHK_STATUS_IN_PROGRESS 0x00000002 #define MCHCHK_STATUS_WAITING 0x00000004 void s390_init_machine_check( void ); void s390_do_machine_check ( void ); void s390_do_crw_pending ( crwe_t *pcrwe ); extern __inline__ int stcrw( __u32 *pcrw ) { int ccode; __asm__ __volatile__( "STCRW 0(%1)\n\t" "IPM %0\n\t" "SRL %0,28\n\t" : "=d" (ccode) : "a" (pcrw) : "cc", "1" ); return ccode; } #endif /* __s390mach */ |