eal/tile: add const in prefetch functions

Commit 7c5d0cc91579 added const in prefetch functions for
X86 and PPC.  This patch does the same for Tile arch.

Signed-off-by: Zhigang Lu <zlu@ezchip.com>

diff --git a/lib/librte_eal/common/include/arch/tile/rte_prefetch.h b/lib/librte_eal/common/include/arch/tile/rte_prefetch.h
index f02d9fa..c94075c 100644 (file)
--- a/lib/librte_eal/common/include/arch/tile/rte_prefetch.h
+++ b/lib/librte_eal/common/include/arch/tile/rte_prefetch.h
@@ -39,17 +39,17 @@ extern "C" {
 
 #include "generic/rte_prefetch.h"
 
-static inline void rte_prefetch0(volatile void *p)
+static inline void rte_prefetch0(const volatile void *p)
 {
        __builtin_prefetch((const void *)(uintptr_t)p, 0, 3);
 }
 
-static inline void rte_prefetch1(volatile void *p)
+static inline void rte_prefetch1(const volatile void *p)
 {
        __builtin_prefetch((const void *)(uintptr_t)p, 0, 2);
 }
 
-static inline void rte_prefetch2(volatile void *p)
+static inline void rte_prefetch2(const volatile void *p)
 {
        __builtin_prefetch((const void *)(uintptr_t)p, 0, 1);
 }