From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756000AbbAWRQq (ORCPT ); Fri, 23 Jan 2015 12:16:46 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:42149 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752264AbbAWRQn (ORCPT ); Fri, 23 Jan 2015 12:16:43 -0500 Date: Fri, 23 Jan 2015 17:16:29 +0000 From: Catalin Marinas To: Suzuki Poulose Cc: "linux-arm-kernel@lists.infradead.org" , "leo.yan@linaro.org" , "yexl@marvell.com" , Will Deacon , Mark Rutland , "linux-kernel@vger.kernel.org" , Greg Hackmann Subject: Re: [PATCHv3 0/3] Handle SETEND for AArch32 tasks Message-ID: <20150123171628.GG9557@e104818-lin.cambridge.arm.com> References: <1421844191-9263-1-git-send-email-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1421844191-9263-1-git-send-email-suzuki.poulose@arm.com> Thread-Topic: [PATCHv3 0/3] Handle SETEND for AArch32 tasks Accept-Language: en-GB, en-US Content-Language: en-US User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 21, 2015 at 12:43:08PM +0000, Suzuki K. Poulose wrote: > From: "Suzuki K. Poulose" > > This series add support for controlling the 'setend' instruction, > which is deprecated in ARMv8, using the legacy instruction emulation > framework, introduced by Punit Agrawal. > > Changes since V2: > - Move ID_AA64MMFR0_EL1 bit definitions to asm/cputype.h > - Use mask/value pair for the features in ID_AA64MMFR0_EL1 > - Better documentation about the hardware support limitaion under > Documentation and the Kconfig help > - Restore the original 'set_hw_mode' API, with wrappers to invoke > the set_hw_mode for on_each_cpu() variants. > - Print a warning when we detect an incompatibility for a registered > insn_emulation hook on a hotplugged CPU. > > Changes since V1: > - Added a patch to keep track of the mixed endian support and register > the setend emulation only if all the active CPUs supports mixed endian. > - Fail hotplug operation if the CPU doesn't support a feature > required by insn_emulation. > - Signal handler runs in native endian I queued these patches for 3.20 (and included Punit's suggestion as well). They should appear in linux-next later today. Cc'ing Greg H @ Google since they are the main users of the emulation code. If you see any problem, please let us know. Thanks. -- Catalin