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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-04-14 15:45:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-14 16:49:02 -0700
commit06ef42a16f2dd8480ada1be3a549e12b02c45915 (patch)
tree0454c1dcb12cc1115c717e9297f13e80e137e3be
parentf24ffde43237755b290c46306a3dd2deb1428700 (diff)
downloadlinux-stericsson-06ef42a16f2dd8480ada1be3a549e12b02c45915.tar.gz
powerpc: 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: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> 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/powerpc/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 22b0940494bb..91ad76f30d18 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -297,6 +297,12 @@ config ZONE_DMA32
bool
default y if PPC64
+config PGTABLE_LEVELS
+ int
+ default 2 if !PPC64
+ default 3 if PPC_64K_PAGES
+ default 4
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"