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 EA93DC77B7A for ; Thu, 18 May 2023 00:54:16 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:CC: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=vlPApO9SjGxLFK7AxmaeeUm0v2qIZEdhTRb6nJ/0JDs=; b=jbkUBpk2DFsjR6 RHn37TPlTnkHzTfuT2d9hR3VrAz6pQs/PvdBGZm+PP9TI4xCrC5cQVK+HqjCFUh8bC6uHRviS+x4H F3ifgzBMXFY7jTRKztETElYyAbYewixiS93BzbQ1IQegGa+ykoVmThxHbQNgtxkp5x7cn6iIqzILd 0ZZCBU3rejupe9IXp0SscY+NlpiAb/7ODKOoIfH0ZI4UvSNvWUjzl4k/tKRQa9T6NaXA/nhMLI8hF wx6dAM5SOu37z8QEAegi5jyK7bfnEXBWowSNXn1GlO1b2xx5mRUeMyafZjCAlBytwxq2uFArU5byD 75ZGJ41cFOmIyW8x9pJQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pzRtp-00BX7P-2Z; Thu, 18 May 2023 00:53:45 +0000 Received: from mail-dm6nam12on20626.outbound.protection.outlook.com ([2a01:111:f400:fe59::626] helo=NAM12-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pzRtn-00BX6f-1S for linux-arm-kernel@lists.infradead.org; Thu, 18 May 2023 00:53:44 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UTk3PnwUAQs4MKFyYgs0yALmqDjpe2Ol9oV2RUhYZRq8wdzCqYWhFn+1Gv5zvpUAFioJP6KFbSx8WjJu2LVG/Gd8QtdkoEu9d4jN0l8N3V0FWwTZ+2zmT8/mQqcYVnMhBm1Ox6BVue8680KnAmWAdP3yNOnp/2iJqbOdTh5nfdW6Pe8CGcHfCGvSR9zkuEDfZfep3058XPQHGP1H68QHLycmfRMmXFDKmra5NJWz2YekypAc9E1GzG/Oh22PmvBcbNlKxcwQPG5/mxhFBEPkB8YS8IyUfI18cXArnA4ovIaCFasKs6mUwMqgW7BD7e8p+uGXJ2JcWWXonQI0bg6gpw== 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=O+TDAgYlO2UmCVOzbxZHbWDn/5mnikY1tYpdxG8nbEY=; b=XLPYa069FwTNlUpj+2BSl1q1ave2xjrb4PddP1FwewHFs5LZn3ymTP9Gy5Nv4v5R9y8YJJB4RbVsCW2lcz9uXu6pS6pzYA9fxdqGmDmMk7Tiy6mQ/egj1gQasyB8YffmWs55GrzfkZm8o7yIsVw1ds8dpXz4AXnsnffqORN/UTH3FYI2zceDmu1fE8szTSla2nRyfVLJ5M7VmZfo6lkR78rXzcH3Qtue9+sy6XHap8gSievOFOI63CiH/FF/cBl20WSUHsbMco1w6zxeCPknh31CbUFYkTgLaB+sL3f2LbhOtwUQz7exMTeSK4P49I3qiUArtYrVZWbVCCLADe36Dg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) 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=O+TDAgYlO2UmCVOzbxZHbWDn/5mnikY1tYpdxG8nbEY=; b=i2Vv0d/VY73hMtpMbXbjjqkEvJjUlhWQQWHaCRZ/Ed30tLfsLziwNrQIxRfCClMaJ4JazQ+Bu8vMDNqvxCAzvmmJOYZ9HEmX42DhlZl/2i47+8+RJaqwpVL6ka72TDhmbfHMp2pmTycWEI4QbuJ5s3/8F6p5MknZ5PMt3ERGZ0cGQmJdz7Sn9g8d+ZBkYewdjBWEU3GOgE4TLJgFrAj0Q1wvL9RmEmtPluaAgsYvxxew9DOBW0TsyZq3QV/Oo/L1hnYJyR4EJkLj6+DiKO4qYTLCm9OsD/PTnw/e5X/r3miuFkijBYoAuFIVJ9fBte6H65cVZ6O5Rxb/+sG511552A== Received: from BY3PR03CA0009.namprd03.prod.outlook.com (2603:10b6:a03:39a::14) by SN7PR12MB7834.namprd12.prod.outlook.com (2603:10b6:806:34d::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6411.19; Thu, 18 May 2023 00:53:36 +0000 Received: from DM6NAM11FT062.eop-nam11.prod.protection.outlook.com (2603:10b6:a03:39a:cafe::63) by BY3PR03CA0009.outlook.office365.com (2603:10b6:a03:39a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6411.19 via Frontend Transport; Thu, 18 May 2023 00:53:36 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) 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 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by DM6NAM11FT062.mail.protection.outlook.com (10.13.173.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6411.18 via Frontend Transport; Thu, 18 May 2023 00:53:35 +0000 Received: from rnnvmail203.nvidia.com (10.129.68.9) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.5; Wed, 17 May 2023 17:53:22 -0700 Received: from rnnvmail202.nvidia.com (10.129.68.7) 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 15.2.986.37; Wed, 17 May 2023 17:53:21 -0700 Received: from Asurada-Nvidia (10.127.8.14) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.37 via Frontend Transport; Wed, 17 May 2023 17:53:21 -0700 Date: Wed, 17 May 2023 17:53:19 -0700 From: Nicolin Chen To: Robin Murphy CC: , , , , Subject: Re: [PATCH 1/4] iommu/arm-smmu-v3: Work around MMU-600 erratum 1076982 Message-ID: References: <08adbe3d01024d8382a478325f73b56851f76e49.1683731256.git.robin.murphy@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT062:EE_|SN7PR12MB7834:EE_ X-MS-Office365-Filtering-Correlation-Id: 53e8535f-10ea-49d7-01d1-08db573a4fbc 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:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(136003)(396003)(346002)(376002)(451199021)(40470700004)(36840700001)(46966006)(40460700003)(426003)(336012)(54906003)(316002)(40480700001)(4326008)(8936002)(82310400005)(8676002)(5660300002)(70586007)(70206006)(86362001)(82740400003)(6916009)(33716001)(7636003)(356005)(47076005)(36860700001)(55016003)(2906002)(4744005)(26005)(9686003)(478600001)(186003)(41300700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 May 2023 00:53:35.9091 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 53e8535f-10ea-49d7-01d1-08db573a4fbc X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT062.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7834 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230517_175343_563992_A4BAB082 X-CRM114-Status: GOOD ( 14.17 ) 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: , 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 Wed, May 10, 2023 at 10:40:42AM -0700, Nicolin Chen wrote: > On Wed, May 10, 2023 at 04:38:43PM +0100, Robin Murphy wrote: > > > MMU-600 versions prior to r1p0 fail to correctly generate a WFE wakeup > > event when the command queue transitions fom full to non-full. We can > > easily work around this by simply hiding the SEV capability such that we > > fall back to polling for space in the queue - since MMU-600 implements > > MSIs we wouldn't expect to need SEV for sync completion either, so this > > should have little to no impact. > > > > Signed-off-by: Robin Murphy > > Reviewed-by: Nicolin Chen It happens that I have a simulation environment where the IIDR value hits the errata, i.e. the NESTING feature bit gets canceled by this patch. So, Tested-by: Nicolin Chen Hopefully we can get this series merged soon. Thanks! Nic _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel