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 smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 6D255C433F5 for ; Mon, 14 Feb 2022 11:27:13 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 07D4B60ECB; Mon, 14 Feb 2022 11:27:13 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wAw3g9I1D3Gb; Mon, 14 Feb 2022 11:27:12 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp3.osuosl.org (Postfix) with ESMTPS id 01E0260EBF; Mon, 14 Feb 2022 11:27:11 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id AFB79C001A; Mon, 14 Feb 2022 11:27:11 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [IPv6:2605:bc80:3010::133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 8AE35C000B for ; Mon, 14 Feb 2022 11:27:10 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 6B3AC405A2 for ; Mon, 14 Feb 2022 11:27:10 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iiYr0sVe0oSe for ; Mon, 14 Feb 2022 11:27:09 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from theia.8bytes.org (8bytes.org [IPv6:2a01:238:4383:600:38bc:a715:4b6d:a889]) by smtp2.osuosl.org (Postfix) with ESMTPS id A98CB401DF for ; Mon, 14 Feb 2022 11:27:09 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id AC95B36D; Mon, 14 Feb 2022 12:27:06 +0100 (CET) Date: Mon, 14 Feb 2022 12:27:05 +0100 From: Joerg Roedel To: Jason Gunthorpe Subject: Re: [PATCH v1 5/8] iommu/amd: Use iommu_attach/detach_device() Message-ID: References: <20220106022053.2406748-1-baolu.lu@linux.intel.com> <20220106022053.2406748-6-baolu.lu@linux.intel.com> <20220106143345.GC2328285@nvidia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220106143345.GC2328285@nvidia.com> Cc: Stuart Yoder , rafael@kernel.org, David Airlie , linux-pci@vger.kernel.org, Thierry Reding , Diana Craciun , Dmitry Osipenko , Will Deacon , Ashok Raj , Jonathan Hunter , Christoph Hellwig , Kevin Tian , Chaitanya Kulkarni , Alex Williamson , kvm@vger.kernel.org, Bjorn Helgaas , Dan Williams , Greg Kroah-Hartman , Cornelia Huck , linux-kernel@vger.kernel.org, Li Yang , iommu@lists.linux-foundation.org, Jacob jun Pan , Daniel Vetter , Robin Murphy X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Jan 06, 2022 at 10:33:45AM -0400, Jason Gunthorpe wrote: > But I'm not sure how this can work with multi-device groups - this > seems to assigns a domain setup for direct map, so perhaps this only > works if all devices are setup for direct map? Right, at boot all devices in this group are already setup for using a direct map. There are usually two devices in those groups, the GPU itself and the sound device for HDMI sound output. Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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 26C5EC433EF for ; Mon, 14 Feb 2022 11:42:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352802AbiBNLmk (ORCPT ); Mon, 14 Feb 2022 06:42:40 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:44504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354147AbiBNLmL (ORCPT ); Mon, 14 Feb 2022 06:42:11 -0500 X-Greylist: delayed 418 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 14 Feb 2022 03:34:10 PST Received: from theia.8bytes.org (8bytes.org [IPv6:2a01:238:4383:600:38bc:a715:4b6d:a889]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7DFAD67343 for ; Mon, 14 Feb 2022 03:34:10 -0800 (PST) Received: by theia.8bytes.org (Postfix, from userid 1000) id AC95B36D; Mon, 14 Feb 2022 12:27:06 +0100 (CET) Date: Mon, 14 Feb 2022 12:27:05 +0100 From: Joerg Roedel To: Jason Gunthorpe Cc: Lu Baolu , Alex Williamson , Robin Murphy , Christoph Hellwig , Kevin Tian , Ashok Raj , Greg Kroah-Hartman , Bjorn Helgaas , Will Deacon , Dan Williams , rafael@kernel.org, Diana Craciun , Cornelia Huck , Eric Auger , Liu Yi L , Jacob jun Pan , Chaitanya Kulkarni , Stuart Yoder , Laurentiu Tudor , Thierry Reding , David Airlie , Daniel Vetter , Jonathan Hunter , Li Yang , Dmitry Osipenko , iommu@lists.linux-foundation.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 5/8] iommu/amd: Use iommu_attach/detach_device() Message-ID: References: <20220106022053.2406748-1-baolu.lu@linux.intel.com> <20220106022053.2406748-6-baolu.lu@linux.intel.com> <20220106143345.GC2328285@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220106143345.GC2328285@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Thu, Jan 06, 2022 at 10:33:45AM -0400, Jason Gunthorpe wrote: > But I'm not sure how this can work with multi-device groups - this > seems to assigns a domain setup for direct map, so perhaps this only > works if all devices are setup for direct map? Right, at boot all devices in this group are already setup for using a direct map. There are usually two devices in those groups, the GPU itself and the sound device for HDMI sound output. Regards, Joerg