Contributors: 7
Author Tokens Token Proportion Commits Commit Proportion
Sven Schnelle 209 60.93% 5 33.33%
Martin Schwidefsky 102 29.74% 3 20.00%
Linus Torvalds (pre-git) 16 4.66% 2 13.33%
Fan Zhang 6 1.75% 1 6.67%
Heiko Carstens 5 1.46% 2 13.33%
Peter Oberparleiter 4 1.17% 1 6.67%
Greg Kroah-Hartman 1 0.29% 1 6.67%
Total 343 15 


/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  Copyright IBM Corp. 2006
 *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
 */
#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;
	u64 todoff;
	u32 rsvd[50];
} __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);
bool stp_enabled(void);

#endif /* __S390_STP_H */