1 /* 2 * arch/s390/kernel/s390mach.h 3 * S/390 data definitions for machine check processing 4 * 5 * S390 version 6 * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation 7 * Author(s): Ingo Adlung (adlung@de.ibm.com) 8 */ 9 10 #ifndef __s390mach_h 11 #define __s390mach_h 12 13 #include <asm/types.h> 14 15 typedef struct _mci { 16 __u32 sd : 1; /* 00 system damage */ 17 __u32 pd : 1; /* 01 instruction-processing damage */ 18 __u32 sr : 1; /* 02 system recovery */ 19 __u32 to_be_defined_1 : 4; /* 03-06 */ 20 __u32 dg : 1; /* 07 degradation */ 21 __u32 w : 1; /* 08 warning pending */ 22 __u32 cp : 1; /* 09 channel-report pending */ 23 __u32 to_be_defined_2 : 6; /* 10-15 */ 24 __u32 se : 1; /* 16 storage error uncorrected */ 25 __u32 sc : 1; /* 17 storage error corrected */ 26 __u32 ke : 1; /* 18 storage-key error uncorrected */ 27 __u32 ds : 1; /* 19 storage degradation */ 28 __u32 to_be_defined_3 : 4; /* 20-23 */ 29 __u32 fa : 1; /* 24 failing storage address validity */ 30 __u32 to_be_defined_4 : 7; /* 25-31 */ 31 __u32 ie : 1; /* 32 indirect storage error */ 32 __u32 to_be_defined_5 : 31; /* 33-63 */ 33 } mci_t; 34 35 // 36 // machine-check-interruption code 37 // 38 typedef struct _mcic { 39 union _mcc { 40 __u64 mcl; /* machine check int. code - long info */ 41 mci_t mcd; /* machine check int. code - details */ 42 } mcc; 43 } __attribute__ ((packed)) mcic_t; 44 45 // 46 // Channel Report Word 47 // 48 typedef struct _crw { 49 __u32 res1 : 1; /* reserved zero */ 50 __u32 slct : 1; /* solicited */ 51 __u32 oflw : 1; /* overflow */ 52 __u32 chn : 1; /* chained */ 53 __u32 rsc : 4; /* reporting source code */ 54 __u32 anc : 1; /* ancillary report */ 55 __u32 res2 : 1; /* reserved zero */ 56 __u32 erc : 6; /* error-recovery code */ 57 __u32 rsid : 16; /* reporting-source ID */ 58 } __attribute__ ((packed)) crw_t; 59 60 #define CRW_RSC_MONITOR 0x2 /* monitoring facility */ 61 #define CRW_RSC_SCH 0x3 /* subchannel */ 62 #define CRW_RSC_CPATH 0x4 /* channel path */ 63 #define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */ 64 #define CRW_RSC_CSS 0xB /* channel subsystem */ 65 66 #define CRW_ERC_EVENT 0x00 /* event information pending */ 67 #define CRW_ERC_AVAIL 0x01 /* available */ 68 #define CRW_ERC_INIT 0x02 /* initialized */ 69 #define CRW_ERC_TERROR 0x03 /* temporary error */ 70 #define CRW_ERC_IPARM 0x04 /* installed parm initialized */ 71 #define CRW_ERC_TERM 0x05 /* terminal */ 72 #define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */ 73 #define CRW_ERC_PERRI 0x07 /* perm. error, facility init */ 74 #define CRW_ERC_PMOD 0x08 /* installed parameters modified */ 75 76 #define MAX_CRW_PENDING 1024 77 #define MAX_MACH_PENDING 1024 78 79 // 80 // CRW Entry 81 // 82 typedef struct _crwe { 83 crw_t crw; 84 struct _crwe *crwe_next; 85 } __attribute__ ((packed)) crwe_t; 86 87 typedef struct _mache { 88 spinlock_t lock; 89 unsigned int status; 90 mcic_t mcic; 91 union _mc { 92 crwe_t *crwe; /* CRW if applicable */ 93 } mc; 94 struct _mache *next; 95 struct _mache *prev; 96 } mache_t; 97 98 #define MCHCHK_STATUS_TO_PROCESS 0x00000001 99 #define MCHCHK_STATUS_IN_PROGRESS 0x00000002 100 #define MCHCHK_STATUS_WAITING 0x00000004 101 102 void s390_init_machine_check( void ); 103 void s390_do_machine_check ( void ); 104 void s390_do_crw_pending ( crwe_t *pcrwe ); 105 stcrw(__u32 * pcrw)106extern __inline__ int stcrw( __u32 *pcrw ) 107 { 108 int ccode; 109 110 __asm__ __volatile__( 111 "STCRW 0(%1)\n\t" 112 "IPM %0\n\t" 113 "SRL %0,28\n\t" 114 : "=d" (ccode) : "a" (pcrw) 115 : "cc", "1" ); 116 return ccode; 117 } 118 119 #endif /* __s390mach */ 120