[IA64] fix PAL_PREFETCH_VISIBILITY call

The following patch fixes the ia64_pal_prefetch_visibility function to
take a transaction type argument for either virtual or physical memory
as specified in the System Architechture Manual page 2:358.
Signed-Off-By: Jes Sorensen <jes@trained-monkey.org>
Signed-Off-By: Tony Luck <tony.luck@intel.com>

include/asm-ia64/pal.h

@@ -66,7 +66,7 @@
 #define PAL_CACHE_PROT_INFO	38	/* get i/d cache protection info */
 #define PAL_REGISTER_INFO	39	/* return AR and CR register information*/
 #define PAL_SHUTDOWN		40	/* enter processor shutdown state */
-#define PAL_PREFETCH_VISIBILITY	41
+#define PAL_PREFETCH_VISIBILITY	41	/* Make Processor Prefetches Visible */
 
 #define PAL_COPY_PAL		256	/* relocate PAL procedures and PAL PMI */
 #define PAL_HALT_INFO		257	/* return the low power capabilities of processor */
@@ -1537,11 +1537,25 @@ ia64_pal_tr_read (u64 reg_num, u64 tr_type, u64 *tr_buffer, pal_tr_valid_u_t *tr
 	return iprv.status;
 }
 
+/*
+ * PAL_PREFETCH_VISIBILITY transaction types
+ */
+#define PAL_VISIBILITY_VIRTUAL		0
+#define PAL_VISIBILITY_PHYSICAL		1
+
+/*
+ * PAL_PREFETCH_VISIBILITY return codes
+ */
+#define PAL_VISIBILITY_OK		1
+#define PAL_VISIBILITY_OK_REMOTE_NEEDED	0
+#define PAL_VISIBILITY_INVAL_ARG	-2
+#define PAL_VISIBILITY_ERROR		-3
+
 static inline s64
-ia64_pal_prefetch_visibility (void)
+ia64_pal_prefetch_visibility (s64 trans_type)
 {
 	struct ia64_pal_retval iprv;
-	PAL_CALL(iprv, PAL_PREFETCH_VISIBILITY, 0, 0, 0);
+	PAL_CALL(iprv, PAL_PREFETCH_VISIBILITY, trans_type, 0, 0);
 	return iprv.status;
 }