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>,
        <linux-doc@vger.kernel.org>, <linux-arch@vger.kernel.org>
CC: <schwidefsky@de.ibm.com>, <heiko.carstens@de.ibm.com>,
        <ynorov@caviumnetworks.com>, <pinskia@gmail.com>, <broonie@kernel.org>,
        <joseph@codesourcery.com>, <christoph.muellner@theobroma-systems.com>,
        <bamvor.zhangjian@huawei.com>, <szabolcs.nagy@arm.com>,
        <klimov.linux@gmail.com>, <Nathan_Lynch@mentor.com>, <agraf@suse.de>,
        <Prasun.Kapoor@caviumnetworks.com>, <kilobyte@angband.pl>,
        <geert@linux-m68k.org>, <philipp.tomsich@theobroma-systems.com>,
        <manuel.montezelo@gmail.com>, <linyongting@huawei.com>,
        <maxim.kuvyrkov@linaro.org>, <davem@davemloft.net>,
        <zhouchengming1@huawei.com>, <cmetcalf@ezchip.com>,
        Andrew Pinski <apinski@cavium.com>,
        Andrew Pinski <Andrew.Pinski@caviumnetworks.com>
Subject: [PATCH 18/18] arm64:ilp32: add ARM64_ILP32 to Kconfig
Date: Fri, 21 Oct 2016 23:33:17 +0300
Message-ID: <1477081997-4770-19-git-send-email-ynorov@caviumnetworks.com>
In-Reply-To: <1477081997-4770-1-git-send-email-ynorov@caviumnetworks.com>
References: <1477081997-4770-1-git-send-email-ynorov@caviumnetworks.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2016 20:36:50.8182 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR07MB2254
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 1256
Lines: 43

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 | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9efa86a..07e177f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -996,7 +996,7 @@ source "fs/Kconfig.binfmt"
 
 config COMPAT
 	bool
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 
 config AARCH32_EL0
 	bool "Kernel support for 32-bit EL0"
@@ -1018,6 +1018,14 @@ config AARCH32_EL0
 
 	  If you want to execute 32-bit userspace applications, say Y.
 
+config ARM64_ILP32
+	bool "Kernel support for ILP32"
+	select COMPAT
+	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
-- 
2.7.4