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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp. 2006
* Author(s): Martin Schwidefsky ([email protected])
*/
#ifndef __S390_STP_H
#define __S390_STP_H
#include <linux/compiler.h>
/* notifier for syncs */
extern struct atomic_notifier_head s390_epoch_delta_notifier;
/* STP interruption parameter */
struct stp_irq_parm {
u32 : 14;
u32 tsc : 1; /* Timing status change */
u32 lac : 1; /* Link availability change */
u32 tcpc : 1; /* Time control parameter change */
u32 : 15;
} __packed;
#define STP_OP_SYNC 1
#define STP_OP_CTRL 3
struct stp_sstpi {
u32 : 32;
u32 tu : 1;
u32 lu : 1;
u32 : 6;
u32 stratum : 8;
u32 vbits : 16;
u32 leaps : 16;
u32 tmd : 4;
u32 ctn : 4;
u32 : 3;
u32 c : 1;
u32 tst : 4;
u32 tzo : 16;
u32 dsto : 16;
u32 ctrl : 16;
u32 : 16;
u32 tto;
u32 : 32;
u32 ctnid[3];
u32 : 32;
u32 todoff[4];
u32 rsvd[48];
} __packed;
struct stp_tzib {
u32 tzan : 16;
u32 : 16;
u32 tzo : 16;
u32 dsto : 16;
u32 stn;
u32 dstn;
u64 dst_on_alg;
u64 dst_off_alg;
} __packed;
struct stp_tcpib {
u32 atcode : 4;
u32 ntcode : 4;
u32 d : 1;
u32 : 23;
s32 tto;
struct stp_tzib atzib;
struct stp_tzib ntzib;
s32 adst_offset : 16;
s32 ndst_offset : 16;
u32 rsvd1;
u64 ntzib_update;
u64 ndsto_update;
} __packed;
struct stp_lsoib {
u32 p : 1;
u32 : 31;
s32 also : 16;
s32 nlso : 16;
u64 nlsout;
} __packed;
struct stp_stzi {
u32 rsvd0[3];
u64 data_ts;
u32 rsvd1[22];
struct stp_tcpib tcpib;
struct stp_lsoib lsoib;
} __packed;
/* Functions needed by the machine check handler */
int stp_sync_check(void);
int stp_island_check(void);
void stp_queue_work(void);
#endif /* __S390_STP_H */