Index: arch/ia64/include/mm/page.h
===================================================================
--- arch/ia64/include/mm/page.h	(revision 1084a7848bafa4813443a91f16a7fc9514ecd5d9)
+++ arch/ia64/include/mm/page.h	(revision 445745566f2e9f2942ee3a1fe4596b711a29dbe7)
@@ -35,6 +35,6 @@
 #define PAGE_SIZE	FRAME_SIZE
 
-#define KA2PA(x)	(((__address) (x))-0x8000000000000000)
-#define PA2KA(x)	(((__address) (x))+0x8000000000000000)
+#define KA2PA(x)	((__address) (x))
+#define PA2KA(x)	((__address) (x))
 
 #define page_arch_init()	;