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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 380D1C433E0 for ; Tue, 19 May 2020 10:39:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 09D932065F for ; Tue, 19 May 2020 10:39:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ggsflL4e" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 09D932065F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dTcuDwCykbY9T9G/Q8Up73w9Qu6DnCJAbS/mgOFETMo=; b=ggsflL4eIXXtYUtkDQagrZcbS 0Sd/IEl3zbl2H460Yf0RN5kqaMtxkInXdeHceT07in7n3y4mf6+I4TwSF/07vU+kY826UIqnjkgca 8JGJesIHiHZO1p1e3OIt0fN7oPWET+yTEhtVFeitJ3AxL5VsvYosfeO7S+UoxQuZPwNOkhqqPvvJn wW1rw82JEOxMnJS6jJ+MJCDIeygFVBmegIgEvF3cbrIlgCrJCZSVbW3Yii0ytapDo7lHb5u/hdegb oLGZ+VusOF+zQ3d5JdRufZrPOhjwhc/o48jfPrjZQz81P8chMLPezOIwgx6s60BMS75Y6kAJAUGXV BDm+jjnMg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jazf8-0007K1-MR; Tue, 19 May 2020 10:39:54 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jazf5-0007JI-I4 for linux-arm-kernel@lists.infradead.org; Tue, 19 May 2020 10:39:52 +0000 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 6134A101E; Tue, 19 May 2020 03:39:49 -0700 (PDT) Received: from [10.37.8.206] (unknown [10.37.8.206]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B534A3F305; Tue, 19 May 2020 03:39:47 -0700 (PDT) Subject: Re: [PATCH V4 03/17] arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0 To: anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org References: <1589881254-10082-1-git-send-email-anshuman.khandual@arm.com> <1589881254-10082-4-git-send-email-anshuman.khandual@arm.com> From: Suzuki K Poulose Message-ID: <6bbdb3e5-d6bd-db8f-4de9-a964f19c9ac4@arm.com> Date: Tue, 19 May 2020 11:44:33 +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: <1589881254-10082-4-git-send-email-anshuman.khandual@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200519_033951_636658_B09DF9DF X-CRM114-Status: GOOD ( 13.84 ) 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@arm.com, catalin.marinas@arm.com, will@kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 05/19/2020 10:40 AM, Anshuman Khandual wrote: > Double lock feature can have the following possible values. > > 0b0000 - Double lock implemented > 0b1111 - Double lock not implemented > > But in case of a conflict the safe value should be 0b1111. Hence this must > be a signed feature instead. Also change FTR_EXACT to FTR_LOWER_SAFE. While > here, fix the erroneous bit width value from 28 to 4. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Mark Rutland > Cc: Suzuki K Poulose > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > > Suggested-by: Suzuki K Poulose > Signed-off-by: Anshuman Khandual Reviewed-by: Suzuki K Poulose _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel