From patchwork Mon May 1 18:02:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 13227849 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 DF5D3C77B7C for ; Mon, 1 May 2023 18:04:51 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nV/izPTRCbjJ0b+DIzCeUEhrIec9Z6yT63bQU1FAjmc=; b=EmbaheipoJNxNf CRO4lfBAMGzNvAeBJ8A/cTGPOQyRbXYrlRnA+rQ9z14xTZlpymtb6hs2b742VbHQHvNCHML4CHdOW eZFxAtLGpdLjZiK8pEz67I3HqxwDDXV9ctqs4kI3wYOSoLc/TUsJhxp3vqfT6iAiYtJZwnfSmollS XPtnzyicvIbjeyl0fKDYArS0z/Hquk0QqrT3e8K+0tn49azlR4oVWMkIHTCATEcrV6lCTT8uHxJUq qk5gK1+/oEwFRtfQyRzFddWIPAHDpws0Cae+bKf42dyhYq0uWAjca37ydS/vrm2mx/RpTKuG1BsMu gO7Ec3YtNKQk/LFpV2Ag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ptXsQ-00GSfn-1B; Mon, 01 May 2023 18:03:54 +0000 Received: from mail-mw2nam10on2062c.outbound.protection.outlook.com ([2a01:111:f400:7e89::62c] helo=NAM10-MW2-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ptXro-00GS1e-2j; Mon, 01 May 2023 18:03:20 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=cfA2qqLNc1bYnBqWKTO97hYY+kXGZkiaPyk74OBvEPYi8iTLdm329e/Em3JpPYxH/hVC3rHqQ/78GaChG8x27me7XGh/UIUCeBKbejMrI1AZgN27pqzvAt4kTOnfRuYOwx4Fh4vY/NUJZ+QBDgk1RibuUT1tBPuulBMHv6tq/Ki2tjvCg2pDiixzP5iY5VoLnqwj2GUcBkKRJbdepAgpmY3Z19KzlSCqMt5V/nEiC0eYqtfydAJ+mmg0RRLqMwND8x1J2FCpC01ILwmvrWTIE9moXiSHzZasAnN2W1beL3DIQiUbb3xwFoAixKnLiCPYratYY1y1QiMULDq2zxI2hQ== 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=JsaMmeYOBy4TJ1Ln9OIw+WcBFXbBsigFcVyY4axhIQk=; b=MwjZ02D0FS1afd+1S1+DNhq1B1BlcF/BLSIuV+81c2a2c1J+X9pv83Mo4dVh1PCCErTSWdXpD26pOFo14YApVl557EfGrag7XytyW4MNMOHTaI+BTXRKzG47w/OC1ors90RjAE7tLb3SV+Q6TEDeqOmAhk7fAyoRGNRevB4BBOrKJhNIkMli/QbTHQtt5mnAlnnKqWsYp5cSUE44gYzmrjcb8R13UmDpI83EQZzUa282bylEeHWhu1qW/Gcn60wcA7ucDMWrQl7gpg5/oo0kAspYl0ZR6bnc7pgUaW/E1t3h0rYtLnIqJF2mlN3q35Vy2JjeNiwOZI7HYIxNVgNtkg== 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=JsaMmeYOBy4TJ1Ln9OIw+WcBFXbBsigFcVyY4axhIQk=; b=WMxQedzxlMdGG5kRdnLg/jfws9nah/DCTcrESGxUBCECANHiIzwpXjPNuhDYGMKNELbPqwHP81Q6ZppJcPBzTImFVLDXNEDQZ4WgUh9RVQTscn1quPD3xUY1cfA5WAs2/B1+jIOXM1Zoab4A28+1hhiHqXjTsEfnmC7sWjKrwGrsUq0GpHvPV0jqTq9JvkJp/Mxsy7amKjEdIy+Sm5cyKheYQVS8+nJuC9j49Ekt38784xyf5BkmSO3qha9dJYkiNIiJIZnunQtfJrRa3ancYU7h7B+M8DlGXcjqEfd/1DES4O4dJS6m0wVOHWoWB4U3omYqE4SHIY4wUTFbrCt6uA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) by IA1PR12MB6457.namprd12.prod.outlook.com (2603:10b6:208:3ab::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6340.30; Mon, 1 May 2023 18:03:08 +0000 Received: from LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::f7a7:a561:87e9:5fab]) by LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::f7a7:a561:87e9:5fab%6]) with mapi id 15.20.6340.030; Mon, 1 May 2023 18:03:08 +0000 From: Jason Gunthorpe To: Andy Gross , Alim Akhtar , Bjorn Andersson , AngeloGioacchino Del Regno , Baolin Wang , Gerald Schaefer , Heiko Stuebner , iommu@lists.linux.dev, Jernej Skrabec , Jonathan Hunter , Joerg Roedel , Konrad Dybcio , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, Marek Szyprowski , Matthias Brugger , Matthew Rosato , Orson Zhai , Rob Clark , Robin Murphy , Samuel Holland , Niklas Schnelle , Thierry Reding , Krishna Reddy , Chen-Yu Tsai , Will Deacon , Yong Wu , Chunyan Zhang Cc: Lu Baolu , Kevin Tian , Nicolin Chen , Steven Price Subject: [PATCH 11/20] iommu/mtk_iommu_v1: Implement an IDENTITY domain Date: Mon, 1 May 2023 15:02:55 -0300 Message-Id: <11-v1-21cc72fcfb22+a7a-iommu_all_defdom_jgg@nvidia.com> In-Reply-To: <0-v1-21cc72fcfb22+a7a-iommu_all_defdom_jgg@nvidia.com> References: X-ClientProxiedBy: MN2PR06CA0003.namprd06.prod.outlook.com (2603:10b6:208:23d::8) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|IA1PR12MB6457:EE_ X-MS-Office365-Filtering-Correlation-Id: 68106567-da74-44df-e6ee-08db4a6e5099 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:LV2PR12MB5869.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(396003)(39860400002)(366004)(346002)(136003)(376002)(451199021)(6506007)(186003)(6486002)(26005)(83380400001)(2616005)(4326008)(5660300002)(316002)(66476007)(66556008)(66946007)(6512007)(41300700001)(8676002)(8936002)(7406005)(54906003)(478600001)(6666004)(2906002)(110136005)(36756003)(7416002)(86362001)(38100700002)(921005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 68106567-da74-44df-e6ee-08db4a6e5099 X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 May 2023 18:03:06.4239 (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: JpPVw/Hgm008N4FfTXbQRQg3nHbgrpCqOdEwTJX2pBndTeoKmrW+PUGFHZFH2zeB X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6457 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230501_110316_928384_F2EAB8E7 X-CRM114-Status: GOOD ( 13.35 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org What mtk does during omap_iommu_set_platform_dma() is actually putting the iommu into identity mode. Move to the new core support for ARM_DMA_USE_IOMMU by defining ops->identity_domain. Remove the mtk_iommu_v1_def_domain_type() hack, commit 8bbe13f52cb7 ("iommu/mediatek-v1: Add def_domain_type") explains this was needed to allow probe_finalize() to be called, but now the IDENTITY domain will do the same job. This driver does not support IOMMU_DOMAIN_DMA, however it cannot be compiled on ARM64 either. Most likely it is fine to support dma-iommu.c Signed-off-by: Jason Gunthorpe --- drivers/iommu/mtk_iommu_v1.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 8a0a5e5d049f4a..7c0c1d50df5f75 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -319,13 +319,24 @@ static int mtk_iommu_v1_attach_device(struct iommu_domain *domain, struct device return 0; } -static void mtk_iommu_v1_set_platform_dma(struct device *dev) +static int mtk_iommu_v1_identity_attach(struct iommu_domain *identity_domain, + struct device *dev) { struct mtk_iommu_v1_data *data = dev_iommu_priv_get(dev); mtk_iommu_v1_config(data, dev, false); + return 0; } +static struct iommu_domain_ops mtk_iommu_v1_identity_ops = { + .attach_dev = mtk_iommu_v1_identity_attach, +}; + +static struct iommu_domain mtk_iommu_v1_identity_domain = { + .type = IOMMU_DOMAIN_IDENTITY, + .ops = &mtk_iommu_v1_identity_ops, +}; + static int mtk_iommu_v1_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t pgsize, size_t pgcount, int prot, gfp_t gfp, size_t *mapped) @@ -441,11 +452,6 @@ static int mtk_iommu_v1_create_mapping(struct device *dev, struct of_phandle_arg return 0; } -static int mtk_iommu_v1_def_domain_type(struct device *dev) -{ - return IOMMU_DOMAIN_UNMANAGED; -} - static struct iommu_device *mtk_iommu_v1_probe_device(struct device *dev) { struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); @@ -578,14 +584,13 @@ static int mtk_iommu_v1_hw_init(const struct mtk_iommu_v1_data *data) } static const struct iommu_ops mtk_iommu_v1_ops = { + .identity_domain = &mtk_iommu_v1_identity_domain, .domain_alloc = mtk_iommu_v1_domain_alloc, .probe_device = mtk_iommu_v1_probe_device, .probe_finalize = mtk_iommu_v1_probe_finalize, .release_device = mtk_iommu_v1_release_device, - .def_domain_type = mtk_iommu_v1_def_domain_type, .device_group = generic_device_group, .pgsize_bitmap = MT2701_IOMMU_PAGE_SIZE, - .set_platform_dma_ops = mtk_iommu_v1_set_platform_dma, .owner = THIS_MODULE, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = mtk_iommu_v1_attach_device,