[MIPS] Enable support for the userlocal hardware register

Which will cut down the cost of RDHWR $29 which is used to obtain the
TLS pointer and so far being emulated in software down to a single cycle
operation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index 89c81922d47c..668db02c2804 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -7,7 +7,7 @@
  * Copyright (C) 2000 Silicon Graphics, Inc.
  * Modified for further R[236]000 support by Paul M. Antoine, 1996.
  * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ * Copyright (C) 2000, 07 MIPS Technologies, Inc.
  * Copyright (C) 2003, 2004  Maciej W. Rozycki
  */
 #ifndef _ASM_MIPSREGS_H
@@ -533,6 +533,7 @@
 #define MIPS_CONF3_VEIC         (_ULCAST_(1) <<  6)
 #define MIPS_CONF3_LPA          (_ULCAST_(1) <<  7)
 #define MIPS_CONF3_DSP          (_ULCAST_(1) << 10)
+#define MIPS_CONF3_ULRI         (_ULCAST_(1) << 13)
 
 #define MIPS_CONF7_WII          (_ULCAST_(1) << 31)
 
@@ -772,6 +773,9 @@ do {									\
 #define read_c0_context()       __read_ulong_c0_register($4, 0)
 #define write_c0_context(val)   __write_ulong_c0_register($4, 0, val)
 
+#define read_c0_userlocal()     __read_ulong_c0_register($4, 2)
+#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
+
 #define read_c0_pagemask()      __read_32bit_c0_register($5, 0)
 #define write_c0_pagemask(val)  __write_32bit_c0_register($5, 0, val)