diff --git a/include/linux/timex.h b/include/linux/timex.h
index db501dc23c29..9a24e500c311 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -255,10 +255,10 @@ struct time_interpolator {
 	u8 jitter;			/* if set compensate for fluctuations */
 	u32 nsec_per_cyc;		/* set by register_time_interpolator() */
 	void *addr;			/* address of counter or function */
-	u64 mask;			/* mask the valid bits of the counter */
+	cycles_t mask;			/* mask the valid bits of the counter */
 	unsigned long offset;		/* nsec offset at last update of interpolator */
 	u64 last_counter;		/* counter value in units of the counter at last update */
-	u64 last_cycle;			/* Last timer value if TIME_SOURCE_JITTER is set */
+	cycles_t last_cycle;		/* Last timer value if TIME_SOURCE_JITTER is set */
 	u64 frequency;			/* frequency in counts/second */
 	long drift;			/* drift in parts-per-million (or -1) */
 	unsigned long skips;		/* skips forward */
diff --git a/kernel/timer.c b/kernel/timer.c
index c2a8ccfc2882..d38801a95866 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1624,7 +1624,7 @@ struct time_interpolator *time_interpolator __read_mostly;
 static struct time_interpolator *time_interpolator_list __read_mostly;
 static DEFINE_SPINLOCK(time_interpolator_lock);
 
-static inline u64 time_interpolator_get_cycles(unsigned int src)
+static inline cycles_t time_interpolator_get_cycles(unsigned int src)
 {
 	unsigned long (*x)(void);
 
@@ -1650,8 +1650,8 @@ static inline u64 time_interpolator_get_counter(int writelock)
 
 	if (time_interpolator->jitter)
 	{
-		u64 lcycle;
-		u64 now;
+		cycles_t lcycle;
+		cycles_t now;
 
 		do {
 			lcycle = time_interpolator->last_cycle;