From: Yury Norov <ynorov@caviumnetworks.com>
To: <arnd@arndb.de>, <catalin.marinas@arm.com>,
        <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
CC: <pinskia@gmail.com>, <ddaney.cavm@gmail.com>, <jan.dakinevich@gmail.com>,
        <Prasun.Kapoor@caviumnetworks.com>,
        <christoph.muellner@theobroma-systems.com>,
        <philipp.tomsich@theobroma-systems.com>, <broonie@kernel.org>,
        <andrey.konovalov@linaro.org>, <Nathan_Lynch@mentor.com>,
        <agraf@suse.de>, <bamvor.zhangjian@huawei.com>,
        <klimov.linux@gmail.com>, <joseph@codesourcery.com>, <schwab@suse.de>,
        Yury Norov <ynorov@caviumnetworks.com>
Subject: [PATCH v6 19/19] arm64:ilp32: add ARM64_ILP32 to Kconfig
Date: Wed, 18 Nov 2015 00:16:59 +0300
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From: Andrew Pinski <apinski@cavium.com>

This patch adds the config option for ILP32.

Reviewed-by: David Daney <ddaney@caviumnetworks.com>

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Andrew Pinski <Andrew.Pinski@caviumnetworks.com>
---
 arch/arm64/Kconfig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4753d435..deec37a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -680,7 +680,7 @@ source "fs/Kconfig.binfmt"
 
 config COMPAT
 	def_bool y
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 	select COMPAT_BINFMT_ELF
 
 config AARCH32_EL0
@@ -702,6 +702,13 @@ config AARCH32_EL0
 
 	  If you want to execute 32-bit userspace applications, say Y.
 
+config ARM64_ILP32
+	bool "Kernel support for ILP32"
+	help
+	  This option enables support for AArch64 ILP32 user space.  ILP32
+	  is an ABI where long and pointers are 32bits but it uses the AARCH64
+	  instruction set.
+
 config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
-- 
2.1.4

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