1 files changed, 22 insertions, 0 deletions

diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index cc21e3e20fd7..68d9fea34b4b 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -88,6 +88,28 @@ int get_sync_clock(unsigned long long *clock);
 void init_cpu_timer(void);
 unsigned long long monotonic_clock(void);
 
+void tod_to_timeval(__u64, struct timespec *);
+
+static inline
+void stck_to_timespec(unsigned long long stck, struct timespec *ts)
+{
+        tod_to_timeval(stck - TOD_UNIX_EPOCH, ts);
+}
+
 extern u64 sched_clock_base_cc;
 
+/**
+ * get_clock_monotonic - returns current time in clock rate units
+ *
+ * The caller must ensure that preemption is disabled.
+ * The clock and sched_clock_base get changed via stop_machine.
+ * Therefore preemption must be disabled when calling this
+ * function, otherwise the returned value is not guaranteed to
+ * be monotonic.
+ */
+static inline unsigned long long get_clock_monotonic(void)
+{
+        return get_clock_xt() - sched_clock_base_cc;
+}
+
 #endif