csky: Use generic asid algorithm to implement switch_mm

Use linux generic asid/vmid algorithm to implement csky
switch_mm function. The algorithm is from arm and it could
work with SMP system. It'll help reduce tlb flush for
switch_mm in task/vm switch.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/csky/mm/Makefile b/arch/csky/mm/Makefile
index d3d564e5da61..c94ef6481098 100644
--- a/arch/csky/mm/Makefile
+++ b/arch/csky/mm/Makefile
@@ -13,3 +13,4 @@ obj-y +=			ioremap.o
 obj-y +=			syscache.o
 obj-y +=			tlb.o
 obj-y +=			asid.o
+obj-y +=			context.o