diff -Naur linux-2.5.30-clean/include/linux/cache.h linux-2.5.30/include/linux/cache.h
--- linux-2.5.30-clean/include/linux/cache.h	Thu Aug  1 16:17:32 2002
+++ linux-2.5.30/include/linux/cache.h	Sat Aug 10 06:02:07 2002
@@ -4,12 +4,26 @@
 #include <linux/config.h>
 #include <asm/cache.h>
 
+#ifndef L1_CACHE_MASK
+#define L1_CACHE_MASK		(L1_CACHE_BYTES - 1UL)
+#endif
+
 #define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))
 
 #ifndef L1_CACHE_ALIGN
 #define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES)
 #endif
 
+/* Return the start of the cache line for address _p */
+#ifndef L1_CACHE_LINE
+#define L1_CACHE_LINE(_p)	((unsigned long)(_p) & ~L1_CACHE_MASK)
+#endif
+
+/* Is address _p aligned on a cache boundary? */
+#ifndef L1_CACHE_ALIGNED
+#define L1_CACHE_ALIGNED(_p)	(((unsigned long)(_p) & L1_CACHE_MASK) == 0)
+#endif
+
 #ifndef SMP_CACHE_BYTES
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 #endif