[RFC PATCH 6/6] enable split pmd ptlock.

[Aneesh Kumar K.V]

---
 arch/powerpc/platforms/Kconfig.cputype | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/platforms/Kconfig.cputype 
b/arch/powerpc/platforms/Kconfig.cputype
index a429d859f15d..28ba1acb7842 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -287,6 +287,10 @@ config PPC_STD_MMU_32
        def_bool y
        depends on PPC_STD_MMU && PPC32
 
+config ARCH_ENABLE_SPLIT_PMD_PTLOCK
+       def_bool y
+       depends on PPC_BOOK3S_64
+
 config PPC_RADIX_MMU
        bool "Radix MMU Support"
        depends on PPC_BOOK3S_64
-- 
2.14.3