v4.19.13 snapshot.
diff --git a/arch/s390/include/asm/vtimer.h b/arch/s390/include/asm/vtimer.h
new file mode 100644
index 0000000..42f707d
--- /dev/null
+++ b/arch/s390/include/asm/vtimer.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2003, 2012
+ * Virtual CPU timer
+ *
+ * Author(s): Jan Glauber <jan.glauber@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_TIMER_H
+#define _ASM_S390_TIMER_H
+
+#define VTIMER_MAX_SLICE (0x7fffffffffffffffULL)
+
+struct vtimer_list {
+ struct list_head entry;
+ u64 expires;
+ u64 interval;
+ void (*function)(unsigned long);
+ unsigned long data;
+};
+
+extern void init_virt_timer(struct vtimer_list *timer);
+extern void add_virt_timer(struct vtimer_list *timer);
+extern void add_virt_timer_periodic(struct vtimer_list *timer);
+extern int mod_virt_timer(struct vtimer_list *timer, u64 expires);
+extern int mod_virt_timer_periodic(struct vtimer_list *timer, u64 expires);
+extern int del_virt_timer(struct vtimer_list *timer);
+
+extern void init_cpu_vtimer(void);
+extern void vtime_init(void);
+
+#endif /* _ASM_S390_TIMER_H */