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