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authorMike Frysinger <vapier.adi@gmail.com>2008-04-24 05:07:29 +0800
committerBryan Wu <cooloney@kernel.org>2008-04-24 05:07:29 +0800
commit764cb81cdc0620711d2cef5d06e9ef03c9d84184 (patch)
tree2a42b808807ed8690bb7b106b428744349ed54ce
parent8cab0288c6376b9c00155b0802cbe84118d1ba89 (diff)
[Blackfin] arch: actually implement get_cycles function
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
-rw-r--r--arch/blackfin/kernel/time-ts.c5
-rw-r--r--include/asm-blackfin/timex.h17
2 files changed, 13 insertions, 9 deletions
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 3aad6d710726..1ce8cb1e4982 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/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)
diff --git a/include/asm-blackfin/timex.h b/include/asm-blackfin/timex.h
index 828590117f51..22b0806161bb 100644
--- a/include/asm-blackfin/timex.h
+++ b/include/asm-blackfin/timex.h
@@ -1,18 +1,23 @@
-/* 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