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-rw-r--r--include/asm-alpha/system.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-alpha/system.h b/include/asm-alpha/system.h
index 050e86d12891..766ab868e8ab 100644
--- a/include/asm-alpha/system.h
+++ b/include/asm-alpha/system.h
@@ -140,6 +140,16 @@ extern void halt(void) __attribute__((noreturn));
140struct task_struct; 140struct task_struct;
141extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct*); 141extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct*);
142 142
143/*
144 * On SMP systems, when the scheduler does migration-cost autodetection,
145 * it needs a way to flush as much of the CPU's caches as possible.
146 *
147 * TODO: fill this in!
148 */
149static inline void sched_cacheflush(void)
150{
151}
152
143#define imb() \ 153#define imb() \
144__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory") 154__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
145 155