1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2006 4 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) 5 */ 6 #ifndef __S390_STP_H 7 #define __S390_STP_H 8 9 /* notifier for syncs */ 10 extern struct atomic_notifier_head s390_epoch_delta_notifier; 11 12 /* STP interruption parameter */ 13 struct stp_irq_parm { 14 unsigned int _pad0 : 14; 15 unsigned int tsc : 1; /* Timing status change */ 16 unsigned int lac : 1; /* Link availability change */ 17 unsigned int tcpc : 1; /* Time control parameter change */ 18 unsigned int _pad2 : 15; 19 } __attribute__ ((packed)); 20 21 #define STP_OP_SYNC 1 22 #define STP_OP_CTRL 3 23 24 struct stp_sstpi { 25 unsigned int rsvd0; 26 unsigned int rsvd1 : 8; 27 unsigned int stratum : 8; 28 unsigned int vbits : 16; 29 unsigned int leaps : 16; 30 unsigned int tmd : 4; 31 unsigned int ctn : 4; 32 unsigned int rsvd2 : 3; 33 unsigned int c : 1; 34 unsigned int tst : 4; 35 unsigned int tzo : 16; 36 unsigned int dsto : 16; 37 unsigned int ctrl : 16; 38 unsigned int rsvd3 : 16; 39 unsigned int tto; 40 unsigned int rsvd4; 41 unsigned int ctnid[3]; 42 unsigned int rsvd5; 43 unsigned int todoff[4]; 44 unsigned int rsvd6[48]; 45 } __attribute__ ((packed)); 46 47 /* Functions needed by the machine check handler */ 48 int stp_sync_check(void); 49 int stp_island_check(void); 50 void stp_queue_work(void); 51 52 #endif /* __S390_STP_H */ 53