[Blackfin] arch: actually implement get_cycles function

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

arch/blackfin/kernel/time-ts.c

@@ -12,6 +12,7 @@
 #include <linux/profile.h>
 #include <linux/interrupt.h>
 #include <linux/time.h>
+#include <linux/timex.h>
 #include <linux/irq.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
@@ -35,9 +36,7 @@ static inline unsigned long long cycles_2_ns(cycle_t cyc)
 
 static cycle_t read_cycles(void)
 {
-	unsigned long tmp, tmp2;
-	asm("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
-	return tmp | ((cycle_t)tmp2 << 32);
+	return get_cycles();
 }
 
 unsigned long long sched_clock(void)

include/asm-blackfin/timex.h

-/* blackfin architecture timex specifications: Lineo Inc. 2001
+/*
+ * asm-blackfin/timex.h: cpu cycles!
  *
- * Based on: include/asm-m68knommu/timex.h
+ * Copyright 2004-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
  */
 
-#ifndef _ASMBLACKFIN_TIMEX_H
-#define _ASMBLACKFIN_TIMEX_H
+#ifndef _ASM_BLACKFIN_TIMEX_H
+#define _ASM_BLACKFIN_TIMEX_H
 
 #define CLOCK_TICK_RATE	1000000	/* Underlying HZ */
 
-typedef unsigned long cycles_t;
+typedef unsigned long long cycles_t;
 
 static inline cycles_t get_cycles(void)
 {
-	return 0;
+	unsigned long tmp, tmp2;
+	__asm__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
+	return tmp | ((cycles_t)tmp2 << 32);
 }
 
 #endif