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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A6638C54EAA for ; Fri, 27 Jan 2023 22:53:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=DrIEUCDQiF9Ol2TxsD1EmvMvbW9JKua6AdkOO/mC15Q=; b=nq4Nrowt1pBTsL qxk3YWb1H9bBnFeMRMBXCCpRf3H/LyHjQ3L01wiCHLDHzhzyepnaNwPWMmxAUuEy9MuAK/QMSkPb8 iBald7p3Y9Nbxg0CT3QuQF9S5sg8/X3J4vGM3YDNBYgFoK6QjDfCAmESHaKGNCeJ2+lPo68mzaoXY iw0wblQ/NHxHfZGUtwJIP+3TiwVaZsJDYC4c9/RYvP8NFE7EBcqOB62TV848mwERC12khKSHM2nKD pGNeOwS1HXl/rc1hEeB1n0S61RYVYeaTeR0Y65vM5+kZyAmfR64RskzbN+5CwtDZOmvmIMCDkDXiD PH0kj8rJnaiGGnCJWfCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLXZl-00Gjtg-Av; Fri, 27 Jan 2023 22:52:05 +0000 Received: from mail-dm6nam10on20615.outbound.protection.outlook.com ([2a01:111:f400:7e88::615] helo=NAM10-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLXZi-00Gjsz-Kk; Fri, 27 Jan 2023 22:52:04 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DPBO46Y+IzpSdMF3AppJqhDiJzrKusUWZAeYJfd+Fx88vNV+YkVJk5dj/7KXeIStqQvm9vknjsWsbp/aRujsA5ahxwORN+yZlbGeDeBhzsupQHu6a2xej8I2udbFephn6wCiO2XUe+BWlMmPo/oxksAMaw7cSjb9j6afQeN4OPcBL6mk8kI0+BB74GlVHshbKKD+3n2Kkh9X00GnRJusYlpq+oUHYm4/pVdU55hXdiO6c5BtPItkladw98FJXXoogPZB9yyXHn5i/+llhqWksv+lMkQMeuKs+p5vuavsoCkwNrri1/Y1J27aCW9mRb/uOADLO1eV5RguCu8tr0atCA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=SeMy6+Yg2PGakm3qSiX1Tv0sKSod3nKYJ4AwEfDlcko=; b=PQbDF9soEbJQmmF1gkv3npyxYKbbxkH+C17V9MF8boNKfTi8gxdkjOWOK6P9eKFEpgQRrb7BVh3RWLimFKubSi9CME7HJJcMrQoqRrYGhhXG3gSDVVDnI6I98k5+4DZB7JiFTwrhr6ucrQd9HLqzsFtsEaWH7T7KNRXOGaePZ3uA6Tx0uM0DGRYQ7ZIWiqi+qg9o0apdoq+D9laqrVLlexC0ZYfv9eodzuolgZ34itRm2a6CZntQ5K8p9sTesFsQGEbKVM+4E37L8jgAbwlndTHNW+OSOlTmW4ptUKpw5ziKLx4T3D664TqWwqe+pHkuUWk3C7rDwH6fjtCdqaXg8g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=arm.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=SeMy6+Yg2PGakm3qSiX1Tv0sKSod3nKYJ4AwEfDlcko=; b=KTCmQNFE8WENc+Pu4y63VdHQCBF/2wm1FZHt0MhtfHXyV+pOqI7PXTPnLscgM4aaIgCo/Hz27YG5Nk65eJIvr2XaC/mAYlmSL4DrFUjRPZVD1Pyoijzd2YO6kKPxT8pcACmOfQOxOPs0SAIls7JhAflNovRRVSYchLnZk/I3oPZEYpV6jXOfMKu6X1NofPvzu4SATnE8jUUm6xS6qScbXiUUQMFog/NURyuWoOreGNRheX6UW7INpy80NRYq5HM+w5NOFS+mW43z1TFVJM0VqlcgwoRPslDqhlM+Fve8z0PU/+NlslIfmHGepB6KPvq8sSneG04gydQRfkJMm1dYmg== Received: from BN9P223CA0014.NAMP223.PROD.OUTLOOK.COM (2603:10b6:408:10b::19) by DS0PR12MB7899.namprd12.prod.outlook.com (2603:10b6:8:149::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.21; Fri, 27 Jan 2023 22:51:59 +0000 Received: from BL02EPF0000EE3C.namprd05.prod.outlook.com (2603:10b6:408:10b:cafe::92) by BN9P223CA0014.outlook.office365.com (2603:10b6:408:10b::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.23 via Frontend Transport; Fri, 27 Jan 2023 22:51:58 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by BL02EPF0000EE3C.mail.protection.outlook.com (10.167.241.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.10 via Frontend Transport; Fri, 27 Jan 2023 22:51:58 +0000 Received: from rnnvmail203.nvidia.com (10.129.68.9) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Fri, 27 Jan 2023 14:51:45 -0800 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail203.nvidia.com (10.129.68.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Fri, 27 Jan 2023 14:51:45 -0800 Received: from Asurada-Nvidia (10.127.8.12) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36 via Frontend Transport; Fri, 27 Jan 2023 14:51:44 -0800 Date: Fri, 27 Jan 2023 14:51:42 -0800 From: Nicolin Chen To: Robin Murphy Subject: Re: [PATCH 2/4] iommu/dma: Do not init domain if broken_unmanaged_domain Message-ID: References: <451e7beb57ec6de66ee0da5b38886105436f53d7.1674849118.git.nicolinc@nvidia.com> <89da64c8-fef4-2cea-f15c-86264073500c@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <89da64c8-fef4-2cea-f15c-86264073500c@arm.com> X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0000EE3C:EE_|DS0PR12MB7899:EE_ X-MS-Office365-Filtering-Correlation-Id: 24c33fe0-2cc5-4206-f232-08db00b918b5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230025)(4636009)(396003)(39860400002)(136003)(346002)(376002)(451199018)(40470700004)(46966006)(36840700001)(47076005)(82310400005)(55016003)(86362001)(40480700001)(40460700003)(356005)(33716001)(36860700001)(54906003)(7416002)(82740400003)(7636003)(4744005)(2906002)(70206006)(8936002)(41300700001)(4326008)(186003)(8676002)(5660300002)(6916009)(9686003)(53546011)(70586007)(26005)(316002)(426003)(478600001)(336012);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2023 22:51:58.4552 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 24c33fe0-2cc5-4206-f232-08db00b918b5 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0000EE3C.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7899 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_145202_897215_374BD613 X-CRM114-Status: GOOD ( 12.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kevin.tian@intel.com, kvm@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, andersson@kernel.org, cohuck@redhat.com, jonathanh@nvidia.com, konrad.dybcio@linaro.org, linux-tegra@vger.kernel.org, alex.williamson@redhat.com, agross@kernel.org, thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org, jgg@nvidia.com, linux-arm-msm@vger.kernel.org, matthias.bgg@gmail.com, linux-mediatek@lists.infradead.org, will@kernel.org, joro@8bytes.org, yong.wu@mediatek.com 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 Fri, Jan 27, 2023 at 09:59:50PM +0000, Robin Murphy wrote: > External email: Use caution opening links or attachments > > > On 2023-01-27 20:04, Nicolin Chen wrote: > > Add a sanity of the broken_unmanaged_domain flag to reject the use of > > dma-iommu in the early stage, if the flag is set by the iommu driver. > > Realistically, iommu-dma will never be enabled on PPC32, let alone used. > It will not be enabled on ARM until I've fixed any drivers which need > fixing to work with it. We don't need to add dead code here. OK. Sounds like I can drop this patch. Thanks Nicolin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel