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=-10.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,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 3CA6DC433DB for ; Mon, 25 Jan 2021 12:23:38 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C59A222242 for ; Mon, 25 Jan 2021 12:23:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C59A222242 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Szag+9LvHFDcTZqiwdW1VbJNjzNAdMpk9evanH0ee7U=; b=p9UCFLUNKdMSEgfM8QDcrf4/x hmJO0enZzH3lrLVa3lD2qkrZpeNKNzIZwou2X1nbCOnWW1CmEg01P4LFoOOO0LLCPHQJ9eTZ6zjka 78KvhpSmyI84xov9+heHK9ieW6O4UKmFfCVZJGyETvXPND7mBpJQjZvG9wBIIRyeLVVht/oDx36qG VnJm/sQKnp0m8o50AhoKvdE+3U0iHjCksuwBKJHSGyRecPUr2xNbL4KYx+IKDrNyDjzx+1v7QyFPL rQLtrgWRZ4BAneJs1KcnQDXxw7DQxBHx6rHBv1mmWzBy+7ex4cqp42ovdsDL9Baxb7215dnUW7evN ZzqbV6+Wg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l40qb-0006dt-Hf; Mon, 25 Jan 2021 12:19:57 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l40qZ-0006dA-JV for linux-arm-kernel@lists.infradead.org; Mon, 25 Jan 2021 12:19:56 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id C8C41229C6; Mon, 25 Jan 2021 12:19:51 +0000 (UTC) Date: Mon, 25 Jan 2021 12:19:48 +0000 From: Catalin Marinas To: Marc Zyngier Subject: Re: [PATCH v5 10/21] arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding() Message-ID: <20210125121948.GF25360@gaia> References: <20210125105019.2946057-1-maz@kernel.org> <20210125105019.2946057-11-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210125105019.2946057-11-maz@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210125_071955_720706_1AC16978 X-CRM114-Status: GOOD ( 12.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Jing Zhang , Prasad Sodagudi , Srinivas Ramana , Suzuki K Poulose , Alexandru Elisei , linux-kernel@vger.kernel.org, Ard Biesheuvel , James Morse , Julien Thierry , Ajay Patil , kernel-team@android.com, David Brazdil , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jan 25, 2021 at 10:50:08AM +0000, Marc Zyngier wrote: > __read_sysreg_by_encoding() is used by a bunch of cpufeature helpers, > which should take the feature override into account. Let's do that. > > For a good measure (and because we are likely to need to further > down the line), make this helper available to the rest of the > non-modular kernel. > > Code that needs to know the *real* features of a CPU can still > use read_sysreg_s(), and find the bare, ugly truth. > > Signed-off-by: Marc Zyngier > Reviewed-by: Suzuki K Poulose > Acked-by: David Brazdil Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel