Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 9 | #include <linux/compiler.h> |
| 10 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 11 | /* notifier for syncs */ |
| 12 | extern struct atomic_notifier_head s390_epoch_delta_notifier; |
| 13 | |
| 14 | /* STP interruption parameter */ |
| 15 | struct stp_irq_parm { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 16 | u32 : 14; |
| 17 | u32 tsc : 1; /* Timing status change */ |
| 18 | u32 lac : 1; /* Link availability change */ |
| 19 | u32 tcpc : 1; /* Time control parameter change */ |
| 20 | u32 : 15; |
| 21 | } __packed; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 22 | |
| 23 | #define STP_OP_SYNC 1 |
| 24 | #define STP_OP_CTRL 3 |
| 25 | |
| 26 | struct stp_sstpi { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 27 | u32 : 32; |
| 28 | u32 tu : 1; |
| 29 | u32 lu : 1; |
| 30 | u32 : 6; |
| 31 | u32 stratum : 8; |
| 32 | u32 vbits : 16; |
| 33 | u32 leaps : 16; |
| 34 | u32 tmd : 4; |
| 35 | u32 ctn : 4; |
| 36 | u32 : 3; |
| 37 | u32 c : 1; |
| 38 | u32 tst : 4; |
| 39 | u32 tzo : 16; |
| 40 | u32 dsto : 16; |
| 41 | u32 ctrl : 16; |
| 42 | u32 : 16; |
| 43 | u32 tto; |
| 44 | u32 : 32; |
| 45 | u32 ctnid[3]; |
| 46 | u32 : 32; |
| 47 | u32 todoff[4]; |
| 48 | u32 rsvd[48]; |
| 49 | } __packed; |
| 50 | |
| 51 | struct stp_tzib { |
| 52 | u32 tzan : 16; |
| 53 | u32 : 16; |
| 54 | u32 tzo : 16; |
| 55 | u32 dsto : 16; |
| 56 | u32 stn; |
| 57 | u32 dstn; |
| 58 | u64 dst_on_alg; |
| 59 | u64 dst_off_alg; |
| 60 | } __packed; |
| 61 | |
| 62 | struct stp_tcpib { |
| 63 | u32 atcode : 4; |
| 64 | u32 ntcode : 4; |
| 65 | u32 d : 1; |
| 66 | u32 : 23; |
| 67 | s32 tto; |
| 68 | struct stp_tzib atzib; |
| 69 | struct stp_tzib ntzib; |
| 70 | s32 adst_offset : 16; |
| 71 | s32 ndst_offset : 16; |
| 72 | u32 rsvd1; |
| 73 | u64 ntzib_update; |
| 74 | u64 ndsto_update; |
| 75 | } __packed; |
| 76 | |
| 77 | struct stp_lsoib { |
| 78 | u32 p : 1; |
| 79 | u32 : 31; |
| 80 | s32 also : 16; |
| 81 | s32 nlso : 16; |
| 82 | u64 nlsout; |
| 83 | } __packed; |
| 84 | |
| 85 | struct stp_stzi { |
| 86 | u32 rsvd0[3]; |
| 87 | u64 data_ts; |
| 88 | u32 rsvd1[22]; |
| 89 | struct stp_tcpib tcpib; |
| 90 | struct stp_lsoib lsoib; |
| 91 | } __packed; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 92 | |
| 93 | /* Functions needed by the machine check handler */ |
| 94 | int stp_sync_check(void); |
| 95 | int stp_island_check(void); |
| 96 | void stp_queue_work(void); |
| 97 | |
| 98 | #endif /* __S390_STP_H */ |