From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH v3 21/31] arm64: 32-bit (compat) applications support Date: Fri, 7 Sep 2012 19:47:45 +0000 Message-ID: <201209071947.45313.arnd@arndb.de> References: <1347035226-18649-1-git-send-email-catalin.marinas@arm.com> <1347035226-18649-22-git-send-email-catalin.marinas@arm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: Received: from moutng.kundenserver.de ([212.227.126.187]:57188 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752023Ab2IGTrv (ORCPT ); Fri, 7 Sep 2012 15:47:51 -0400 In-Reply-To: <1347035226-18649-22-git-send-email-catalin.marinas@arm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Catalin Marinas Cc: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org On Friday 07 September 2012, Catalin Marinas wrote: > > From: Will Deacon > > This patch adds support for 32-bit applications. The vectors page is a > binary blob mapped into the application user space at 0xffff0000 (the > AArch64 toolchain does not support compilation of AArch32 code). Full > compatibility with ARMv7 user space is supported. The use of deprecated > ARMv7 functionality (SWP, CP15 barriers) has been disabled by default on > AArch64 kernels and unaligned LDM/STM is not supported. > > Please note that only the ARM 32-bit EABI is supported, so no OABI > compatibility. > > Signed-off-by: Will Deacon > Signed-off-by: Catalin Marinas > Acked-by: Tony Lindgren I guess you haven't had time to turn any of these into architecture independent functions as discussed last time? Arnd From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Fri, 7 Sep 2012 19:47:45 +0000 Subject: [PATCH v3 21/31] arm64: 32-bit (compat) applications support In-Reply-To: <1347035226-18649-22-git-send-email-catalin.marinas@arm.com> References: <1347035226-18649-1-git-send-email-catalin.marinas@arm.com> <1347035226-18649-22-git-send-email-catalin.marinas@arm.com> Message-ID: <201209071947.45313.arnd@arndb.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Friday 07 September 2012, Catalin Marinas wrote: > > From: Will Deacon > > This patch adds support for 32-bit applications. The vectors page is a > binary blob mapped into the application user space at 0xffff0000 (the > AArch64 toolchain does not support compilation of AArch32 code). Full > compatibility with ARMv7 user space is supported. The use of deprecated > ARMv7 functionality (SWP, CP15 barriers) has been disabled by default on > AArch64 kernels and unaligned LDM/STM is not supported. > > Please note that only the ARM 32-bit EABI is supported, so no OABI > compatibility. > > Signed-off-by: Will Deacon > Signed-off-by: Catalin Marinas > Acked-by: Tony Lindgren I guess you haven't had time to turn any of these into architecture independent functions as discussed last time? Arnd