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authorIngo Molnar <mingo@elte.hu>2006-01-12 04:05:27 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-12 12:08:49 -0500
commit4dc7a0bbeb6882ad665e588e82fabe5bb4645f2f (patch)
tree8c034f802157d7f449e76f45086c0e13e0ea4711 /include/asm-ppc/system.h
parentc6b44d10f25e5a93eca5135b686a35775c63546e (diff)
[PATCH] sched: add cacheflush() asm
Add per-arch sched_cacheflush() which is a write-back cacheflush used by the migration-cost calibration code at bootup time. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-ppc/system.h')
-rw-r--r--include/asm-ppc/system.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-ppc/system.h b/include/asm-ppc/system.h
index bd99cb53a19f..212dca66fcac 100644
--- a/include/asm-ppc/system.h
+++ b/include/asm-ppc/system.h
@@ -123,6 +123,16 @@ extern struct task_struct *__switch_to(struct task_struct *,
123 struct task_struct *); 123 struct task_struct *);
124#define switch_to(prev, next, last) ((last) = __switch_to((prev), (next))) 124#define switch_to(prev, next, last) ((last) = __switch_to((prev), (next)))
125 125
126/*
127 * On SMP systems, when the scheduler does migration-cost autodetection,
128 * it needs a way to flush as much of the CPU's caches as possible.
129 *
130 * TODO: fill this in!
131 */
132static inline void sched_cacheflush(void)
133{
134}
135
126struct thread_struct; 136struct thread_struct;
127extern struct task_struct *_switch(struct thread_struct *prev, 137extern struct task_struct *_switch(struct thread_struct *prev,
128 struct thread_struct *next); 138 struct thread_struct *next);