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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-04-14 15:45:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-14 16:49:01 -0700
commit1bcad26e9d5362d4890ab5718d729ee9cd85a493 (patch)
tree0e6253daa0a429846de3ddf3df52fb4d71a76318
parent9f25e6ad58e1fb3b4d441e4c55635c4598a6fa94 (diff)
downloadlinux-stericsson-1bcad26e9d5362d4890ab5718d729ee9cd85a493.tar.gz
arm: expose number of page table levels on Kconfig level
We would want to use number of page table level to define mm_struct. Let's expose it as CONFIG_PGTABLE_LEVELS. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/arm/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cf4c0c99aa25..696cf3c61e0f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -286,6 +286,11 @@ config GENERIC_BUG
def_bool y
depends on BUG
+config PGTABLE_LEVELS
+ int
+ default 3 if ARM_LPAE
+ default 2
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"