[PATCH] sched: add cacheflush() asm

[linux-beck.git] / include / asm-sh / system.h

diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 28a3c2d8bcd7c132afb75f87b16d7a684678500d..bb0330499bdfef3987cc88d7dd454ead0df3a929 100644 (file)
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -57,6 +57,16 @@
        last = __last;                                                  \
 } while (0)
 
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
+
 #define nop() __asm__ __volatile__ ("nop")