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Diffstat (limited to 'include/asm-s390/s390mach.h')
| -rw-r--r-- | include/asm-s390/s390mach.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/asm-s390/s390mach.h b/include/asm-s390/s390mach.h new file mode 100644 index 000000000..56349777a --- /dev/null +++ b/include/asm-s390/s390mach.h @@ -0,0 +1,65 @@ +/* + * 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> + +// +// machine-check-interruption code +// +typedef struct _mcic { + __u32 to_be_defined_1 : 9; + __u32 cp : 1; /* channel-report pending */ + __u32 to_be_defined_2 : 22; + __u32 to_be_defined_3; +} __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; + +// +// CRW Entry +// +typedef struct _crwe { + crw_t crw; + crw_t *crw_next; +} __attribute__ ((packed)) crwe_t; + +typedef struct _mchchk_queue_element { + spinlock_t lock; + unsigned int status; + mcic_t mcic; + crwe_t *crwe; /* CRW if applicable */ + struct mchchk_queue_element *next; + struct mchchk_queue_element *prev; +} mchchk_queue_element_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 __init s390_do_machine_check ( void ); +void __init s390_machine_check_handler( struct semaphore * ); + +#endif /* __s390mach */ |