[20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig

Message ID	20170604120009.342-21-ynorov@caviumnetworks.com
State	Superseded
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; From: Yury Norov <ynorov@caviumnetworks.com> To: Catalin Marinas <catalin.marinas@arm.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Arnd Bergmann <arnd@arndb.de> Cc: Yury Norov <ynorov@caviumnetworks.com>, Andrew Pinski <pinskia@gmail.com>, Andrew Pinski <Andrew.Pinski@caviumnetworks.com>, Adam Borowski <kilobyte@angband.pl>, Chris Metcalf <cmetcalf@ezchip.com>, Steve Ellcey <sellcey@caviumnetworks.com>, Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>, Ramana Radhakrishnan <ramana.gcc@googlemail.com>, Florian Weimer <fweimer@redhat.com>, Bamvor Zhangjian <bamvor.zhangjian@huawei.com>, Andreas Schwab <schwab@suse.de>, Chris Metcalf <cmetcalf@mellanox.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, schwidefsky@de.ibm.com, broonie@kernel.org, Joseph Myers <joseph@codesourcery.com>, christoph.muellner@theobroma-systems.com, szabolcs.nagy@arm.com, klimov.linux@gmail.com, Nathan_Lynch@mentor.com, agraf@suse.de, Prasun.Kapoor@caviumnetworks.com, geert@linux-m68k.org, philipp.tomsich@theobroma-systems.com, manuel.montezelo@gmail.com, linyongting@huawei.com, davem@davemloft.net, zhouchengming1@huawei.com, Andrew Pinski <apinski@cavium.com> Subject: [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig Date: Sun, 4 Jun 2017 15:00:09 +0300 Message-Id: <20170604120009.342-21-ynorov@caviumnetworks.com> In-Reply-To: <20170604120009.342-1-ynorov@caviumnetworks.com> References: <20170604120009.342-1-ynorov@caviumnetworks.com> MIME-Version: 1.0 Content-Type: text/plain SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; BN3PR0701MB1267; 7:gxmBhwdLs/ZwSgDIPFEOybjNDEnXei3wKLezdLmTRMYCaAldSHxd11aPLDfiQqDcGIo5op7y44H9eDDa5rOa8YTgAb4FSGWjXBQJuzsrcD8umDduTDahU7Kl/amSDCm1fB3/NvrhrIdeHuB6PyMH1iUQhNQhJj2xM3zEA4t5pqo5MyTqvun3f7Yy1p7i14AC9VGnK7gaJIbWQVgWKe1S5vr2t6ma+cBInJ3Dw4wLxja1sxwNeFBbCdSmjfD++99qz0Y2tegVbHrbd6WIvhVRpvL4r7rX3vUmhJVXffuyTBBPSX7jM7qM55oflJyUskJ/yx40QLpaGO9EhFjEiIxKHg== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk
Series	[01/20] compat ABI: use non-compat openat and open_by_handle_at variants \| expand [01/20] compat ABI: use non-compat openat and open_by_handle_at variants [02/20] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option [03/20] asm-generic: Drop getrlimit and setrlimit syscalls from default list [04/20] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 [05/20] arm64: rename COMPAT to AARCH32_EL0 in Kconfig [06/20] arm64: ensure the kernel is compiled for LP64 [07/20] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 [08/20] thread: move thread bits accessors to separated file [09/20] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) [10/20] arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 [11/20] arm64: introduce binfmt_elf32.c [12/20] arm64: ilp32: introduce binfmt_ilp32.c [13/20] arm64: ilp32: share aarch32 syscall handlers [14/20] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it [15/20] arm64: signal: share lp64 signal routines to ilp32 [16/20] arm64: signal32: move ilp32 and aarch32 common code to separated file [17/20] arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext [18/20] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 [19/20] arm64:ilp32: add vdso-ilp32 and use for signal return [20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig

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20170604120009.342-21-ynorov@caviumnetworks.com

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From: Yury Norov <ynorov@caviumnetworks.com>
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	klimov.linux@gmail.com, Nathan_Lynch@mentor.com, agraf@suse.de,
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	linyongting@huawei.com, davem@davemloft.net,
	zhouchengming1@huawei.com, Andrew Pinski <apinski@cavium.com>
Subject: [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig
Date: Sun,  4 Jun 2017 15:00:09 +0300
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Series

[01/20] compat ABI: use non-compat openat and open_by_handle_at variants | expand

Commit Message

Yury Norov June 4, 2017, noon UTC

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(-)

-- 
2.11.0

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 2275db8dc7c9..c155e195e939 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1063,7 +1063,7 @@  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"
@@ -1085,6 +1085,14 @@  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

[20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig

Commit Message

Patch