diff --git a/[refs] b/[refs]
index 0ce4f40712bf..bf11d97eb0ac 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9b8c38917b8e083a6343bb5a0c6bbaea78ebff7a
+refs/heads/master: 9fe2e9d6f5390d7151a0b9d8c100f0da26eaa2b7
diff --git a/trunk/arch/mips/include/asm/mipsregs.h b/trunk/arch/mips/include/asm/mipsregs.h
index edda1daf742f..49382d5e891a 100644
--- a/trunk/arch/mips/include/asm/mipsregs.h
+++ b/trunk/arch/mips/include/asm/mipsregs.h
@@ -250,6 +250,14 @@
 #define PL_64M		26
 #define PL_256M		28
 
+/*
+ * PageGrain bits
+ */
+#define PG_RIE		(_ULCAST_(1) <<  31)
+#define PG_XIE		(_ULCAST_(1) <<  30)
+#define PG_ELPA		(_ULCAST_(1) <<  29)
+#define PG_ESP		(_ULCAST_(1) <<  28)
+
 /*
  * R4x00 interrupt enable / cause bits
  */
@@ -830,6 +838,9 @@ do {									\
 #define read_c0_pagemask()	__read_32bit_c0_register($5, 0)
 #define write_c0_pagemask(val)	__write_32bit_c0_register($5, 0, val)
 
+#define read_c0_pagegrain()	__read_32bit_c0_register($5, 1)
+#define write_c0_pagegrain(val)	__write_32bit_c0_register($5, 1, val)
+
 #define read_c0_wired()		__read_32bit_c0_register($6, 0)
 #define write_c0_wired(val)	__write_32bit_c0_register($6, 0, val)