From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2070.outbound.protection.outlook.com [40.107.244.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A86F303A1C for ; Mon, 8 Sep 2025 18:21:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.244.70 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757355681; cv=fail; b=eCXjp8s28u3D0xmWMqHCezc+KL67z25e+Tf7/kkS+LIoYaVLmOMnQC83T60tXCIfPtfNiavPo4CMJAreJOvtff3fICp6PYH2piWnk5Irw/CywZMPuqAlIhgr+OqcBGt0MW1ZQqL36bhPXubOwtryyHvZn3jHw0THj5I7n63iY+I= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757355681; c=relaxed/simple; bh=j3KiHAknMfj+vmz8oIAz5TWJaeucArYiddKMd9VmhEs=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qGi15ZwxhCulyGxuuAcbY/iJys7NxicYWib/Yekj0zYXcF64Zl30oFA5WWk1Tl9+t2pyJPeLBV4riBh5ACKngccvB8P1+JTA6lSAn1tO5pUYcBB/F0HS731IYxK+exfPvReKFevx+kXFYrVKekRbJzXcdijI2PncC1ldWYN6JWw= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=hHdvidJp; arc=fail smtp.client-ip=40.107.244.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="hHdvidJp" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Hla4kJFqqPM4CoKHkelhXaaf8lH3f3Oz07T2U1M0UEbRpm0a0WFvmPO7xuC/GV82YRmiaDx1m0GdrJnmH6QpuOlXoOAHAEHnnfO+T7YnEBVVc4Tycxv6OX7Lt8nW4jNBq5NVLaofcxSzK2LXlIwkUJM8ekx6O5Q1aHdOX21ssuyPla8s4OJJtYV+he4IturilaUfADOL1GysG+Fii193bRmiZcpSwWfuzkzzllcTOL12WMlHRbO4d4y8xJXfEQM9VBaE/HXsbrD4dcK/RpzB/vErkqEPr3BLT1rDdiVRoDPnj9URYNgnDXy37eX1o85eQfi87SkclLI0doLsskJOLQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=qHoNavILgoH0zoOHP/wjoGt2GG40/38tedSowxsYcEs=; b=tCxRaEUlCZCDoEEsS8RBC8OjBbXzhNLnBnkM5bzHTA6Xk4d7E/+Jw8Xz8nsBI67XSy1R5oObf/eodA5ex7PRsiq10gwQMDzYJQRdp4Cg44S+WTyNd3+1/QxEU5HtMiFB9wjBgdY8kha9AP/64XnFIcJq/PlSASGd1N1FKNlGbE9i/5wfLACCGzKs/AIUJamrPFt4knvo0bkLY6Lp8r9Hn66B+la8Ptcsnqbfhqg/LWbFktw8d+bwQoOO4qutJT76es8Ac4te/gt7mJbiudTe7WwPlT/7mvPCTl9aSR8LNlmc9haxK+Euxouqttn0l0kMY9fqLV/+j5Gm5y8Yd5XGxQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.118.233) smtp.rcpttodomain=kernel.org 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 (0) 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=qHoNavILgoH0zoOHP/wjoGt2GG40/38tedSowxsYcEs=; b=hHdvidJpnMnjmdrKbHROfFrndQyfEI8yhWdcmhVknuGk4vFyeRwC/IE1xjrIfe4K+MT1UmyTalYFLO0N41uwBFbJ7zwWr79mA7DiO2AEVjA7LEGhTKSPoUlkRyGM3uBIvpDfnfF36j5k/boA3CkUwuHWUT82DX1U5VMnzyFAPRrj7UskpRAttiCM1Alzi+ns3Jqu6jmRFjeh+Qd7rbRCuQxZd1HIaysHVMRtRHzz4eWTlJ1XreWRkUiOGvH+0zbLYoK+0p2UPmbVJDUgJ6/J++N9A7OCpjmojpKJmJdT7kHXFgy1lu6bblvaxKg/vTyDvMOCBtywiS4XWMAQVqxe9g== Received: from MW4PR04CA0244.namprd04.prod.outlook.com (2603:10b6:303:88::9) by MN2PR12MB4109.namprd12.prod.outlook.com (2603:10b6:208:1d9::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9094.22; Mon, 8 Sep 2025 18:21:16 +0000 Received: from CO1PEPF000066E6.namprd05.prod.outlook.com (2603:10b6:303:88:cafe::c4) by MW4PR04CA0244.outlook.office365.com (2603:10b6:303:88::9) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9094.22 via Frontend Transport; Mon, 8 Sep 2025 18:21:16 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.118.233) 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 216.228.118.233 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.118.233; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.118.233) by CO1PEPF000066E6.mail.protection.outlook.com (10.167.249.4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9115.13 via Frontend Transport; Mon, 8 Sep 2025 18:21:16 +0000 Received: from drhqmail202.nvidia.com (10.126.190.181) by mail.nvidia.com (10.127.129.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Mon, 8 Sep 2025 11:20:49 -0700 Received: from drhqmail203.nvidia.com (10.126.190.182) by drhqmail202.nvidia.com (10.126.190.181) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Mon, 8 Sep 2025 11:20:49 -0700 Received: from nvidia.com (10.127.8.12) by mail.nvidia.com (10.126.190.182) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14 via Frontend Transport; Mon, 8 Sep 2025 11:20:46 -0700 Date: Mon, 8 Sep 2025 11:20:44 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , , , , , , , , , , , , , , Subject: Re: [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu_invs array Message-ID: References: <20250827200002.GD2206304@nvidia.com> <20250908155149.GD789684@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20250908155149.GD789684@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000066E6:EE_|MN2PR12MB4109:EE_ X-MS-Office365-Filtering-Correlation-Id: 761055f2-942b-4b18-f31a-08ddef047ff0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?ko56AfPgCfVNlvreaJruizfo01vgA+1T1F7XX6pLlau/33upttUdFhw58xcj?= =?us-ascii?Q?6TpIHnyFJGnQLlCj0/3Shfhc9tayE9CvIjCt7SX43+3PGdaym6eOuxfclbpn?= =?us-ascii?Q?k6t7C7lcF7YepfrS6DPYPwHvBgCfIcefug3/sBeA4HHNVuJuU3dx+p+hWjkc?= =?us-ascii?Q?YIdvUBy374z2zWhRwUVOEC3icCsfVTlgl2YAs+w29+sr75KQtnWOjvXTDy42?= =?us-ascii?Q?iOMQ9BxIEBfUyghvRo1L+U8Aw4eqhRqDRQDy09TOUwuQKy0koj3y5OB9eldD?= =?us-ascii?Q?u5YO9sHTAu8HTHpoOTbQjUJ3sqgqjswP6/yatP85ThiOSYkpmodVdLghm7rD?= =?us-ascii?Q?WlzUOQQEfEhpNlONNm6PBEOpL104K3x86qrJn4c6rSHe8S2Xbj4Sj+qNbiH3?= =?us-ascii?Q?1EB5iYVcGYunoMj8LXkSWFxCPksT2cika0P7rHbKtIR3ohG+hvEc+7WtYwYS?= =?us-ascii?Q?o6aOztvq9ciWr94MtVT1txqWWf8X65jbCr09fvQRkZfq5cNASgg5Kb9t2zOD?= =?us-ascii?Q?6OOxsKKbilH960MtOB/zMDSJMLYpv7F9OV4jFfQdyVliiLJOTL09RW0VfF7Q?= =?us-ascii?Q?xjRhOme9ZGTV4JRsEGv3NzezLAbUlCizgSVqrhRtAv1tVqOcs8yHC1qv/jyA?= =?us-ascii?Q?J1StBu6B+QvBTYoRxNsxiGwc2JT+UOhkTvCVlAAvIIut722um8VOxBz1dp5V?= =?us-ascii?Q?VDpNS1cqOLHQDJsiV+8M1wq2XMpYFz0txMlNoLXVhHwjclt9L+a9Ktfgc78P?= =?us-ascii?Q?Z0u/LsjlHme4cl1PgqrW2/XaTLHPz/Y+ORV7XRWoagX7f3b/TI2Mhwwe8Lhh?= =?us-ascii?Q?fC2drVkXiK/VMM6wEvPk+Qzck8+vGggG1EPy0r0Dqb/hq18rp7gpIxK1zd88?= =?us-ascii?Q?xpPqkjLGq38TfsGZrDJZMVZm9Z7smZLDbvzbmizzXr0wiQhVpObwjyrXSff/?= =?us-ascii?Q?y2nilV3gpkVt0rwYPPB8SMB6q/Opzl/VwC/W9NZR9v7oUh+gTw5iLyO6msNM?= =?us-ascii?Q?Ou23QDD1yLDSufsTWOPXYV/xdEqlVmi6L3hxVGeuUcWyy2NvDK6+rJefI6Zd?= =?us-ascii?Q?+iHv+MB7baPcSpmsIC6d2Wkkpj2eOyMEPWCEUf6/4FHHnUlfmMvj9LyUjZQm?= =?us-ascii?Q?ugUKzzocCtr4iVNEXWhcvt//bRYYpnPgBDtEPj8XKAoOZavWlZvZX7C7SfIt?= =?us-ascii?Q?tvP6eXxbbOqMlmo9yr0Er+3htuI0q1pUy9vY5hCo6h3X4TTZ6HsmqdDXzw0X?= =?us-ascii?Q?NjkohUuV7EVlCkvuCBQ3+zQlZNBbC41VBgnBMiChfERyjjawcJoXVMAzZA8o?= =?us-ascii?Q?BmSV3hLisrpCOVkECFX/g/s4GdwR3kOi+eY4mI0RWEmr5uoDIfDp0eG0pBmh?= =?us-ascii?Q?pJ6t/WTrRvjpr+pCv+1/S5acbNiSpKikGuEjMT7Ft4DrRXlmqSDd6FDFDssg?= =?us-ascii?Q?j5ZdOSaqJINqMdAxg8QRWuyn3Yk/VXqv25qDl14sbAInNcxmw1Bj7Va7qVua?= =?us-ascii?Q?5OMujZFn6xRd0TI++DImSXI0+tMSh5joU7Y4?= X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(7416014)(376014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Sep 2025 18:21:16.1400 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 761055f2-942b-4b18-f31a-08ddef047ff0 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000066E6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4109 On Mon, Sep 08, 2025 at 12:51:49PM -0300, Jason Gunthorpe wrote: > On Sat, Sep 06, 2025 at 01:16:45AM -0700, Nicolin Chen wrote: > > > /* > > > * A sorted array allows batching invalidations together for fewer SYNCs. > > > * Also, ATS must follow the ASID/VMID invalidation SYNC. > > > */ > > > sort_nonatomic(new_invs->inv, new_invs->num_invs, > > > sizeof(add_invs->inv[0]), arm_smmu_invs_cmp, NULL); > > > return new_invs; > > This should be deleted, merge sort always makes sorted lists. I see. Dropping it. Thanks Nicolin