diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 4ec0964b8394b141f5870198e33c01499a96c345..9cb39644b6f1f588570bb7b8984ad54383c417d4 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -78,7 +78,7 @@ enum fields
 	SET = 0x200
 };
 
-#define OP_MASK		0x2f
+#define OP_MASK		0x3f
 #define OP_SH		26
 #define RS_MASK		0x1f
 #define RS_SH		21
@@ -92,7 +92,7 @@ enum fields
 #define IMM_SH		0
 #define JIMM_MASK	0x3ffffff
 #define JIMM_SH		0
-#define FUNC_MASK	0x2f
+#define FUNC_MASK	0x3f
 #define FUNC_SH		0
 #define SET_MASK	0x7
 #define SET_SH		0