From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00F34C2BA19 for ; Wed, 15 Apr 2020 10:04:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD5C52064A for ; Wed, 15 Apr 2020 10:04:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2896120AbgDOKEb (ORCPT ); Wed, 15 Apr 2020 06:04:31 -0400 Received: from foss.arm.com ([217.140.110.172]:41230 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2895955AbgDOKEZ (ORCPT ); Wed, 15 Apr 2020 06:04:25 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 416D71063; Wed, 15 Apr 2020 03:04:25 -0700 (PDT) Received: from [10.37.12.1] (unknown [10.37.12.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D6CDD3F68F; Wed, 15 Apr 2020 03:04:22 -0700 (PDT) Subject: Re: [PATCH 2/8] arm64: cpufeature: Spell out register fields for ID_ISAR4 and ID_PFR1 To: will@kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: linux-kernel@vger.kernel.org, mark.rutland@arm.com, maz@kernel.org, anshuman.khandual@arm.com, catalin.marinas@arm.com, saiprakash.ranjan@codeaurora.org, dianders@chromium.org, kernel-team@android.com References: <20200414213114.2378-1-will@kernel.org> <20200414213114.2378-3-will@kernel.org> From: Suzuki K Poulose Message-ID: <632b7ace-a7db-a961-b9eb-c9c303376fcd@arm.com> Date: Wed, 15 Apr 2020 11:09:12 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20200414213114.2378-3-will@kernel.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/14/2020 10:31 PM, Will Deacon wrote: > In preparation for runtime updates to the strictness of some AArch32 > features, spell out the register fields for ID_ISAR4 and ID_PFR1 to make > things clearer to read. Note that this isn't functionally necessary, as > the feature arrays themselves are not modified dynamically and remain > 'const'. > > Signed-off-by: Will Deacon > --- > arch/arm64/include/asm/sysreg.h | 17 +++++++++++++++++ > arch/arm64/kernel/cpufeature.c | 28 ++++++++++++++++++++++++++-- > 2 files changed, 43 insertions(+), 2 deletions(-) Reviewed-by: Suzuki K Poulose