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/*
* 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 */
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