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Message-Id: <1422629008-13689-12-git-send-email-kirill.shutemov@linux.intel.com>
Date: Fri, 30 Jan 2015 16:43:20 +0200
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
Guenter Roeck <linux@...ck-us.net>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 11/19] 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@...ux.intel.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Michael Ellerman <mpe@...erman.id.au>
---
arch/powerpc/Kconfig | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 22b0940494bb..4c0c744fa297 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 64K_PAGES
+ default 4
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
--
2.1.4
--
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