--- zzzz-none-000/linux-2.6.28.10/arch/mips/include/asm/r4kcache.h	2009-05-02 18:54:43.000000000 +0000
+++ puma5-6360-529/linux-2.6.28.10/arch/mips/include/asm/r4kcache.h	2010-05-06 10:48:52.000000000 +0000
@@ -166,6 +166,13 @@
 	__iflush_epilogue
 }
 
+static inline void lock_icache_line(unsigned long addr)
+{
+	__iflush_prologue
+	cache_op(Index_Store_Data_I, addr);
+	__iflush_epilogue
+}
+
 static inline void flush_dcache_line(unsigned long addr)
 {
 	__dflush_prologue