1 files changed, 98 insertions, 0 deletions
diff --git a/arch/s390/include/asm/stp.h b/arch/s390/include/asm/stp.h
new file mode 100644
index 000000000..4d74d7e33
--- /dev/null
+++ b/arch/s390/include/asm/stp.h
@@ -0,0 +1,98 @@
+/* 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);
+
+#endif /* __S390_STP_H */