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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 12:46:15 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 12:46:15 -0400
commit31bbb9b58d1e8ebcf2b28c95c2250a9f8e31e397 (patch)
tree6bb0c0490d66d32eca43e73abb28d8b3ab0e7b91 /arch/powerpc/include/asm
parentff830b8e5f999d1ccbd0282a666520f0b557daa4 (diff)
parent3f0a525ebf4b8ef041a332bbe4a73aee94bb064b (diff)
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: itimers: Add tracepoints for itimer hrtimer: Add tracepoint for hrtimers timers: Add tracepoints for timer_list timers cputime: Optimize jiffies_to_cputime(1) itimers: Simplify arm_timer() code a bit itimers: Fix periodic tics precision itimers: Merge ITIMER_VIRT and ITIMER_PROF Trivial header file include conflicts in kernel/fork.c
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r--arch/powerpc/include/asm/cputime.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h
index f42e623030ee..fa19f3fe05ff 100644
--- a/arch/powerpc/include/asm/cputime.h
+++ b/arch/powerpc/include/asm/cputime.h
@@ -18,6 +18,9 @@
18 18
19#ifndef CONFIG_VIRT_CPU_ACCOUNTING 19#ifndef CONFIG_VIRT_CPU_ACCOUNTING
20#include <asm-generic/cputime.h> 20#include <asm-generic/cputime.h>
21#ifdef __KERNEL__
22static inline void setup_cputime_one_jiffy(void) { }
23#endif
21#else 24#else
22 25
23#include <linux/types.h> 26#include <linux/types.h>
@@ -49,6 +52,11 @@ typedef u64 cputime64_t;
49#ifdef __KERNEL__ 52#ifdef __KERNEL__
50 53
51/* 54/*
55 * One jiffy in timebase units computed during initialization
56 */
57extern cputime_t cputime_one_jiffy;
58
59/*
52 * Convert cputime <-> jiffies 60 * Convert cputime <-> jiffies
53 */ 61 */
54extern u64 __cputime_jiffies_factor; 62extern u64 __cputime_jiffies_factor;
@@ -89,6 +97,11 @@ static inline cputime_t jiffies_to_cputime(const unsigned long jif)
89 return ct; 97 return ct;
90} 98}
91 99
100static inline void setup_cputime_one_jiffy(void)
101{
102 cputime_one_jiffy = jiffies_to_cputime(1);
103}
104
92static inline cputime64_t jiffies64_to_cputime64(const u64 jif) 105static inline cputime64_t jiffies64_to_cputime64(const u64 jif)
93{ 106{
94 cputime_t ct; 107 cputime_t ct;