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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11687C4360C for ; Tue, 8 Oct 2019 22:58:31 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E122D21721 for ; Tue, 8 Oct 2019 22:58:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E122D21721 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=deltatee.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 1FD39CAE; Tue, 8 Oct 2019 22:58:21 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id A5CE2C79 for ; Tue, 8 Oct 2019 22:58:19 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from ale.deltatee.com (ale.deltatee.com [207.54.116.67]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 609E55F4 for ; Tue, 8 Oct 2019 22:58:19 +0000 (UTC) Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iHxod-000551-C6; Tue, 08 Oct 2019 16:18:47 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.92) (envelope-from ) id 1iHxoa-0003PX-Nt; Tue, 08 Oct 2019 16:18:44 -0600 From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Joerg Roedel Date: Tue, 8 Oct 2019 16:18:34 -0600 Message-Id: <20191008221837.13067-1-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, joro@8bytes.org, kchow@gigaio.com, logang@deltatee.com X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH 0/3] AMD IOMMU Changes for NTB X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Cc: Logan Gunthorpe , Kit Chow X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Hi, Please find the following patches which help support Non-Transparent-Bridge (NTB) devices on AMD platforms with the IOMMU enabled. The first patch implements dma_map_resource() correctly with the AMD IOMMU. This is required for correct functioning of ntb_transport which uses that interface. The second two patches add support for multiple PCI aliases. NTB hardware will normally send TLPs from a range of requestor IDs to facilitate routing the responses back to the correct requestor on the other side of the bridge. To support this, NTB hardware registers a number of PCI aliases. Currently the AMD IOMMU only allows for one PCI alias so TLPs from the other aliases get rejected. See commit ad281ecf1c7d ("PCI: Add DMA alias quirk for Microsemi Switchtec NTB") for more information on this. Similar patches were upstreamed for Intel hardware earlier this year: commit 21d5d27c042d ("iommu/vt-d: Implement dma_[un]map_resource()") commit 3f0c625c6ae7 ("iommu/vt-d: Allow interrupts from the entire bus for aliased devices") Thanks, Logan -- Kit Chow (1): iommu/amd: Implement dma_[un]map_resource() Logan Gunthorpe (2): iommu/amd: Support multiple PCI DMA aliases in device table iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping drivers/iommu/amd_iommu.c | 198 +++++++++++++++++++------------- drivers/iommu/amd_iommu_types.h | 2 +- 2 files changed, 120 insertions(+), 80 deletions(-) -- 2.20.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu