x86, arm64: Move ARCH_WANT_HUGE_PMD_SHARE config in arch/Kconfig

ARCH_WANT_HUGE_PMD_SHARE config was declared in both architectures:
move this declaration in arch/Kconfig and make those architectures
select it.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # for arm64
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index c47b328eada0..d2f212dc8e72 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -577,6 +577,9 @@ config HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
 config HAVE_ARCH_HUGE_VMAP
         bool
 
+config ARCH_WANT_HUGE_PMD_SHARE
+        bool
+
 config HAVE_ARCH_SOFT_DIRTY
         bool