From: Yury Norov <ynorov@caviumnetworks.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
        Arnd Bergmann <arnd@arndb.de>, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Cc: Yury Norov <ynorov@caviumnetworks.com>,
        Adam Borowski <kilobyte@angband.pl>, Andreas Schwab <schwab@suse.de>,
        Andrew Pinski <pinskia@gmail.com>,
        Bamvor Zhangjian <bamvor.zhangjian@huawei.com>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        Chris Metcalf <cmetcalf@mellanox.com>,
        Florian Weimer <fweimer@redhat.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        James Hogan <james.hogan@imgtec.com>,
        James Morse <james.morse@arm.com>,
        Joseph Myers <joseph@codesourcery.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>, Nathan_Lynch@mentor.com,
        Prasun.Kapoor@caviumnetworks.com,
        Ramana Radhakrishnan <ramana.gcc@googlemail.com>,
        Steve Ellcey <sellcey@caviumnetworks.com>,
        Alexander Graf <agraf@suse.de>, Mark Brown <broonie@kernel.org>,
        christoph.muellner@theobroma-systems.com, davem@davemloft.net,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Alexey Klimov <klimov.linux@gmail.com>, linyongting@huawei.com,
        manuel.montezelo@gmail.com, philipp.tomsich@theobroma-systems.com,
        schwidefsky@de.ibm.com, szabolcs.nagy@arm.com,
        zhouchengming1@huawei.com, Andrew Pinski <apinski@cavium.com>,
        Andrew Pinski <Andrew.Pinski@caviumnetworks.com>
Subject: [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig
Date: Mon, 19 Jun 2017 18:50:03 +0300
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From: Andrew Pinski <apinski@cavium.com>

This patch adds the config option for ILP32.

Signed-off-by: Andrew Pinski <Andrew.Pinski@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>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
---
 arch/arm64/Kconfig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 168ab2cc426b..242771c764a5 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1079,7 +1079,7 @@ source "fs/Kconfig.binfmt"
 
 config COMPAT
 	def_bool y
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 
 config AARCH32_EL0
 	bool "Kernel support for 32-bit EL0"
@@ -1100,6 +1100,13 @@ 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
-- 
2.11.0