[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, 2 insertions, 0 deletions

diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index 9b3a8dd2c3db..be64fc55562a 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -67,6 +67,8 @@ do {									\
         (last) = resume(prev, next, task_thread_info(next));            \
         if (cpu_has_dsp)                                                \
                 __restore_dsp(current);                                 \
+        if (cpu_has_userlocal)                                          \
+                write_c0_userlocal(task_thread_info(current)->tp_value);\
 } while(0)
 
 /*