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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84DE0C43217 for ; Thu, 14 Apr 2022 15:45:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358256AbiDNPla (ORCPT ); Thu, 14 Apr 2022 11:41:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354785AbiDNOmi (ORCPT ); Thu, 14 Apr 2022 10:42:38 -0400 Received: from NAM10-DM6-obe.outbound.protection.outlook.com (mail-dm6nam10on2062.outbound.protection.outlook.com [40.107.93.62]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49F5D2AE3C for ; Thu, 14 Apr 2022 07:39:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=nq0ps0pG1XN4svM4/gmdCs/txlPlvw82QLoxTwnLtujghdNq62LMkkIgwVTt2SGUqjfxXpBJKQVuaqTWxrh7DC4yEJf31CfKFtO7IpPOQYJa1xoDlBBXit8pgXQRAOq/VfbHkobkeFxe0nKBQtKwjozDgkJKE86VKo55CMp2KvnqdVojncK7wY5uSy0juo4d3aY4+HeC2qMJBDRs2asd9EnCf0tQfQtX8gOd83drgdth2KgnsYzHrsB7EM0FaZS7IBSE9GzQ502HHcUq3gvKbq+JLDVCa/naPi8DOLPfM8DB14qsfUUs34gNTGKB2guI1G4RPMkeTERG7yNXSnHsVA== 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=a/Bfz1PATDvC0oypikSeRFZrtlXcP1bU4HB7kfwj9Sc=; b=kF3FPSTwMyD2yCH0lQTE6BlgAlSQjxWIj4Xrn2XZL2ZuWqtHpGhk1GadjwDuzEO6knT0ERysxQTmMULupF9iYTd4DbETaXdgZPmHaAiEri3/a4lXImAz13gRqWTLh8vUPVpgbdmdsSxwDZNt0Zufdv5i6Kc0WHze78VQ30up2W7biduRRS1CDQaX0BBOzvXkNozHgIdnl/PIk9nI0sXgUVnn3i6YPAPJFcn0lKjzeJq2rOyj9FmYWPwptZTw8H3OGtVwDbq2q0xbBwBD3VvdmTh3Ya6qoya67NT2OK+Azjdtf8Myh9JWuHr6pQVVWZDNHl/A6bSDyaJHgKCSJllnWg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; 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=a/Bfz1PATDvC0oypikSeRFZrtlXcP1bU4HB7kfwj9Sc=; b=IVpLwYi17PdvXdvwoVwV0OpHKRO2/zXmLCNdmrp9rJZZYNtHrScZo9eRNmr8TEOg18LHeeZMLUr8etQpI0wwiaRRoRaozhQMu6H8FBVLlPv7QZ08jHw/t3WLe5hIDh78GMf5dVdOgu4IKdcE7+N+XBvr/EJGSqwNS800b0ak0CtgklWcyW12HsYFfnfwrlDMlSiA1eSUR7SiHi1w/YAIR4JdBgo4QuRmhFxea28e5R354tNe7AnMlOzv+zmjb3Q72obzw/b5puiuDR6j3/FurIsQyY8qk+gV3K+ms20oOneufhO4Gicxxd2QyCzL5ecmt+shMFoPORARj7Y63aOUGw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from MN2PR12MB4192.namprd12.prod.outlook.com (2603:10b6:208:1d5::15) by SN6PR12MB4719.namprd12.prod.outlook.com (2603:10b6:805:e9::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5164.18; Thu, 14 Apr 2022 14:39:01 +0000 Received: from MN2PR12MB4192.namprd12.prod.outlook.com ([fe80::ec2d:9167:1b47:2db2]) by MN2PR12MB4192.namprd12.prod.outlook.com ([fe80::ec2d:9167:1b47:2db2%5]) with mapi id 15.20.5164.020; Thu, 14 Apr 2022 14:39:01 +0000 Date: Thu, 14 Apr 2022 11:38:59 -0300 From: Jason Gunthorpe To: "Wang, Zhi A" Cc: Jani Nikula , Christoph Hellwig , Joonas Lahtinen , "Vivi, Rodrigo" , Zhenyu Wang , "intel-gfx@lists.freedesktop.org" , "intel-gvt-dev@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , Alex Williamson Subject: Re: refactor the i915 GVT support and move to the modern mdev API v3 Message-ID: <20220414143859.GE368031@nvidia.com> References: <82c13d8e-1cb4-2873-86e9-16fd38e15b27@intel.com> <20220413154642.GA28095@lst.de> <871qy1geko.fsf@intel.com> <5af7726e-920e-603a-bad3-8adb09d2ba89@intel.com> <20220413232053.GA2120790@nvidia.com> <1c3aaab9-3bd4-95d4-9f9f-4be9e10e6516@intel.com> <20220414133427.GB2120790@nvidia.com> <87ilrbeqbo.fsf@intel.com> <20220414134321.GD2120790@nvidia.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: BLAPR03CA0131.namprd03.prod.outlook.com (2603:10b6:208:32e::16) To MN2PR12MB4192.namprd12.prod.outlook.com (2603:10b6:208:1d5::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7bb56b66-d021-4fd6-9b24-08da1e248450 X-MS-TrafficTypeDiagnostic: SN6PR12MB4719:EE_ X-Microsoft-Antispam-PRVS: 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:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MN2PR12MB4192.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(2616005)(5660300002)(8936002)(26005)(6512007)(33656002)(38100700002)(4326008)(86362001)(316002)(66476007)(66556008)(54906003)(8676002)(66946007)(6916009)(6506007)(6486002)(508600001)(2906002)(7416002)(36756003)(1076003)(186003)(83380400001)(27376004);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?m3ExuVKoUKybjs389f97/JJ1nbF168b1Uu+Y36OhTFxlMcZHG4D5PFCl0/jB?= =?us-ascii?Q?ZC9JjcIkQ6ePZiA+SX5GrMOUGD1vdGsEM9tjGmbLqW4qcFxyFqWJALOEBBIU?= =?us-ascii?Q?C5r4E+sgcmR2aQvZTh7FlEjItRBM+z19dkpTEohsco6Ii4F/adBnx4dghJOh?= =?us-ascii?Q?M4m/nZsXT/2OWHs2sO3FjPxKPsvLUz0YU2dDv4Bp9Ffo697w3/CGNGVnL8ig?= =?us-ascii?Q?rQg9G04mYPyi/5jyEaIb745hgZFv7IOu8KJi6SdwEOuhqXsYogzgLU3LM4PF?= =?us-ascii?Q?fbCsfw7/uZUDopdptzrAMvMZfjwA+XgugdADp5lysq75gidQ+FLjVYXIqb94?= =?us-ascii?Q?w5VdidKcYuOtScCCMEOINyhaK4ryG270AsYfAzeryHsYMBEW9IW0MKU5VhrX?= =?us-ascii?Q?MIPQnCJb0cAnGAPz4roLZMJsksSvIX9ytLXl3VUtJCjB8OVCoQoqyagG8FX6?= =?us-ascii?Q?M52k5ZrEua7dPL6F+us26KYx0CAawbQcZDm3LE2s29AFxe32VFvwwY43Mls1?= =?us-ascii?Q?Ub2A1OFfowNqBjyvSpLrWyVY5RNJ6sMeem6PoBxuCTLtNrBZfL/ha0Ef+Xiq?= =?us-ascii?Q?6RsxFU/1plTs8pHMpjw0YaeTTEBvim4HvX1Hj8/tOaEqoKGcRhTKfpv6uUsO?= =?us-ascii?Q?jQ0r1QxaDXOu7wostkLHJBWV3tVUVvOXh1+r3wP2ecIjtlPeeWHQNDondBeM?= =?us-ascii?Q?YforjTrAqJpO3ycTLvq5b33IGkzejOmAtQJp0WXJyNbpIFPOnuP/oljASiWz?= =?us-ascii?Q?T3kPnp//1aD94QGJ0meTRBcpCaba/W+TIluKK90MECgb9piQS6fpK9IgTsej?= =?us-ascii?Q?kLnJyFf9EpNzgDItZrm+80LGUUx6AUDkVE/qs0h8v4YldZ73U2P3EmuF3LQH?= =?us-ascii?Q?Z9pa7WaSGPmIMPwIhZp3O8MZ3wLDBaIPkdAYLqIxRcbVL1g7YpWUb4owTHQG?= =?us-ascii?Q?ypwX9SrUE9rJiiTiozDBcjxLPk6pfMTZCkR2rzSahgKsG1Kbh6h9E8+jvYaO?= =?us-ascii?Q?7C+OBY6PQnzGKDNRPhHM57y5HBDmx/FyBmN0bizkJK0ht2jpM5nP8iotiz+r?= =?us-ascii?Q?2JeM+oxn3C7NgYF2DHAgo5Kb7E4ymJkBRhCWRw+lMbtGanJfdseNM8GBB5om?= =?us-ascii?Q?PguvilcAK1RtQ4krvtj0Hx8LjdxBSajV5WDEMAov3VM8iGS7E0795h7W9UnP?= =?us-ascii?Q?uYN+zMBBcnhjLP5EcOgiUicviOdeLndy1zsm2wWkRzU8ck79ZGl1/VoGtBbW?= =?us-ascii?Q?Yo2YuwyoJsLPPrgohMKaIbzt5DgNjcRlVAs3pDPZU2+ApUHGP4v+B1yvEfaA?= =?us-ascii?Q?GvfpOIE01qEwr3cXHhivIMmE4P2X8LfuwyWtrPxa+wUulczzwMPcTFVaWrTw?= =?us-ascii?Q?7Brj+s0XcEETKjg8HaAk0HYK3eZIxQhNb/yc2sIEzIRMI9ix4MWGgoPAbtw8?= =?us-ascii?Q?+O27gW29DmXZhrXOaAwnuZ+aS6MKUaT8KBz2t78vIXfEahVT8dQNIOKC2Acx?= =?us-ascii?Q?oGKrli/6e5RuctpqMRThW0g1aE5OG8CLVmGQUYi9n4QUd1V093J931LnTYr4?= =?us-ascii?Q?k8v8Gi0OM2J1lkxZGco0T9mSZtMSYU9nc9Wxz/AfY/0GtvlG+0IOATLh9gxI?= =?us-ascii?Q?3PJdgCVa7c3vGxmsMM/Q1akkzN8ZTpzuCG+duH0L7unoNPQAI3N5ywtQo55r?= =?us-ascii?Q?B/ySYKIzKWMERruj/lgdVQbPElHhPjDZrR383HgQmfXXklW9rRr/Uv8z04cs?= =?us-ascii?Q?vajujAETzg=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7bb56b66-d021-4fd6-9b24-08da1e248450 X-MS-Exchange-CrossTenant-AuthSource: MN2PR12MB4192.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Apr 2022 14:39:01.5752 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wjISa0hfnwjnGt+3NzPHJ9CAjDSBMDurdl0Hs57LT5xxhM0kfaLr6Y2ctcpCwhqw X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR12MB4719 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 14, 2022 at 02:25:36PM +0000, Wang, Zhi A wrote: > > So drop the '[DONT PULL]' commit and send a PR to the next DRM tree - > > when that is confirmed send the same PR to vfio, > > I updated the branch again, but I am confused. What is the purpose of sending > the PR to next DRM tree? I suppose all the patches will go through VFIO? If > I understand correctly? pull requests can flow through more than one tree concurrently. The purpose of the topic branch is to allow all the commits to be in all the trees they need to be in at once. So you should send this branch as a PR to the next logical upstream tree gvt patches normally go through, in the usual way that you send PRs. Especially in this case where there is a small merge conflict internal to DRM to resolve. I'm assuming this is the drm-intel-next tree? Once DRM is internally happy then VFIO can merge it as well. You can view VFIO as the secondary path to Linus, DRM as primary. Alex will mention in his pull request that VFIO has a 'shared branch with DRM for gvt'. Jason