aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-mips
diff options
context:
space:
mode:
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-mips
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-mips')
-rw-r--r--include/asm-mips/system.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index 330c4e497af..5f761ad5a8d 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -164,6 +164,16 @@ do { \
164 __restore_dsp(current); \ 164 __restore_dsp(current); \
165} while(0) 165} while(0)
166 166
167/*
168 * On SMP systems, when the scheduler does migration-cost autodetection,
169 * it needs a way to flush as much of the CPU's caches as possible.
170 *
171 * TODO: fill this in!
172 */
173static inline void sched_cacheflush(void)
174{
175}
176
167static inline unsigned long __xchg_u32(volatile int * m, unsigned int val) 177static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
168{ 178{
169 __u32 retval; 179 __u32 retval;