From patchwork Mon May 1 18:02:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 13227854 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 F1CD7C77B7C for ; Mon, 1 May 2023 18:05:53 +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=0pKKfgp9Ji8jdg3/f5vxEA1Q33nZmYE+blE1mTvT66U=; b=lal93A8g54RluW pPqG16N6BjT024udKVX/btu30OJHwSPG4IcuPtVscMTZYrdR1V3ldU6mx+2URryxkByUgp9vDwaOS UNu+u26SjkNDKux4cK+IO7+zCmCJj6KuSpHYq9rtg3xfFsvAjmxqG40pxQvD00MJsMnwcxNvwTehZ LnIDdb/vNU8ydtARQA6wiOFSudOjH11zRjEb0UuLvuxrg4XQt9/IqwyCX7mEzcFaEslE2eTCRc/Ht P/z6MjP1BEFBHA+FQS4mm7tXU6htHwTg97h5O1hh9jYoB5VIvIJVU99bMRSOfP9F3EyQLp4uffdUZ b9VpvoFKp6H/9YFRIzSA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ptXtV-00GTju-19; Mon, 01 May 2023 18:05:01 +0000 Received: from mail-mw2nam10on20616.outbound.protection.outlook.com ([2a01:111:f400:7e89::616] helo=NAM10-MW2-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ptXrx-00GS56-0S; Mon, 01 May 2023 18:03:31 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=AgBZFMd4PIJLGr88j/lbhdvsqCnR/26nhQWZ2WGTaLWniOc6s68e+0RC7waa5diCwyvrF2aEcuCTRtL8LYt3skP78wNLMTBvB3uE+CJTUAj4pSaQHRdjtvriHgabOSrayseEfdVUOGuWOzr/9+epZKJYP1I4uGEbmWhqaa48tmHbGirLhwllbef7YncG6uz2EKT3sbJ3vUuZ5UaSjLsyxJYmV5ib7OjiWBmLqJ212IWO9VEcj60pWQbo9pmpEkQAYbJKasIChK0jyzGIL3cxAMUBZA7Znda5gfUlbXTCBeDu7UpJXkJrhF1O+BiBlE7F2eoeNHcc5qbgPv/wBRSwWw== 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=3+stucwOwjFKhD0s67QbLxMgWtACvPSPBN034ISRbvA=; b=E/7epPmVe77Lh/sepQEVofwSZ/9B+m3VsUR9VepUvirifxo4DfzYAf55DTlz1XSu4aPZ+DNV8RtsQhk0MGfVv2BX+zwyVAPaptQjfDDKtvi5aym2GCg7gmEc1BRtl3pOBJLkmLltyh/s9aB+rFQZpuWlRU09lu25z1t6iyOkEu7EDbRzJamqUO1/wykgL61w5T7/jcEADp19ffs+gKSJAN1rwnfjJzrTMnvxvKWs/zXNmHOsLvh9nOgCURvgMAFsO+bt7hnvEIbi/11QJUG3LGLGcHS6iXZ1BeHE93QsgEX9vj//DiAkGIXEjqOUx8nFUo++776zUymOmZu83yWXfg== 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=3+stucwOwjFKhD0s67QbLxMgWtACvPSPBN034ISRbvA=; b=aR7JnHEQviQO9Xbb4GwtXGRssubGprvOOzUf3FiyYlXqRGaU/7luEQO1iNbqupCFH7bl1ck+OnzgI/nCiJjhwsVwSx21G2Raa2tqViTvfOkCRadUbiTuDidnXuRb3IVgqDNOw7C4snHGJm8bmCcRDIdZaWlngc6OdOYhAhEiA1ml5ImVsQUOSaQc2V30QsrfTFHPUqIbf/Tu2veWtCPEKkarX9UHXJhNbAOgR+awKWmHy5pnDKhhRSe7jaARclUGelkKl7OXU+1XvKFniRIJlaRhJO9BypUeM1KFPxbWllaYC/zaJe53JxSrFqhgTF04ovU8tKQVn/oifyNQHHAhig== 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 18:03:12 +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 18:03:12 +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 09/20] iommu/omap: Implement an IDENTITY domain Date: Mon, 1 May 2023 15:02:53 -0300 Message-Id: <9-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: BL0PR03CA0002.namprd03.prod.outlook.com (2603:10b6:208:2d::15) 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: ad9c7fd9-57bc-4c69-16ad-08db4a6e5111 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)(4216001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 0OxQkhjMER0GI8R+xrs4r9TGwez+N2ImFM6XhLVnC+SNLtLQszp7hxLRqSCSU8I5b5VtJeNSQFfDAoJWAqTXEg/71mAmiAj65yj0ekDpIsmuayzHTavGiFtf73rA61l9atiNjnkARt3tzvXGNUpj7wDMhjD7A/UHQYLpc5ZttQvDEAsT1q4ek3ZsyAPCE79bbrFnyGObxg8hQ92WyfH4NzkReqiU3ZNkCwbsF8qkUuflX+WHD+uWsT01rQyPn+IcIeHm42RBKUNsZWNKEB8CfUFv1gGmD87nXvJ8BsarwpZOsCiDMDmgmGpYJrCm2goGSLE4MjnG6ZutAKIs5bUZmoHgKBtqYzyzXxR7Lka057anUOxil41yaOKFHAH0405SMFgx4NdPKT4w5sVrdVGB9C2MMdsTTWqUpSgHow24+H20OO+rX1X/Nodb0QTd9PLR3cNVFSJaKJhA4cxPKpqC+/x4LFYWTpeRMsuiPyHnVLhAhiT+vn/mFzRwzjcZWzd09XFjLnxU3YL1+S96l8H4G4Xec3m7DIQ6UCBnc0Y6eNuEbUvelr23cVelMUeLiagfCiKlb0skb1Jus8I6cs6c2dFLVam5yw4ELt35gJp5KT+iNpjzBiOE5RwQ4Dw0F9GZV+4pINsZIvFLaf77gEUVg/dKAoOcxoZFp1ZO3eXu8Z8K8ETqf+Sdd+XUIrllL0iB2vncImrUuwSKHm9Zjmh6kW1FNu+78BCNAf7kYEmmXxebQ2yTtJbYwpEDpod8Y65oW1cmL99UNlaj4/U61R263eNj0etCTRG/VGNDR5lBf0F5MAfIl8BHgi96Vnnp1OmZSO+as2cKaP80w3Bl6gtEafQNSSlWQ8tLh/YpLtDMuNNVDNWgc5QdVn9djLuFgUya1ap8ZyEkAAFjiUiGYgX8U0um86577enBCodRknWBLIDsB+mEBgenyerMRg+Vn+UZQ2oXJtm7yHX5i48mzpSzdJr5gKHNZyQe38Wourrnt4xfhjOM+Untu92vFLg0Mk94HtcM3dpIBX0udFxcLKqj+Gqyus5aOzTZEIL2HLr63cY2++INavvbFgP6sqkA5BHlE3QmfcncE48YFUKIGxwKaF9dXr8e0iQwm5CmMfSv+c3nK4izAwMSJ4BRvfeOyiF51ueYN/FuuTTPJ8e75N/WtVVIcPoWkRDB/0AE5dLZWCvJH9tcJWTZPuVzRtL3e/ETZEYaYuiOIQuDK8LDTFQhNlB2yVIhBB1vVz7UmgM+yCMEL53OALwQnh5I2eHyDij9pQcoayoFeYdEaIC3j+loNoHLI+vKVo2BEj6DZCNGtVQGt5M56UTNeYfi8zHFUviS0YjJY6t9eAHeOLMQvkZNKJExXyRh61Fjryn8dar+7bSBzcRJRQUFxk7XHRU0y86wC1ITXg7N4lPolB6OlJ2PylQDY3dTJzVbCgbdXO/h2ZKSsTefhwXIzXRM3phIqE89NVv8Cc3vOhdhQIeUYhPeCRTbEJRjFhFvTxb9MmnKyU7aqIO+vWCZoqd7in2Y3FAHqXdUrK6KCsRqQLjsPDdCeG7AvLPsqQuLtnHzfrdYrCdE5OJJuCf4d0W2x3ZbKDXh X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: ad9c7fd9-57bc-4c69-16ad-08db4a6e5111 X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 May 2023 18:03:07.2131 (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: bsvS5XFLLaxuDyv6zvIk0PbV9Vgv6wrZE8pc2GNi4iEAG+vkqekq291Stzt0/V2f X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6457 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230501_110325_211324_969A47D1 X-CRM114-Status: GOOD ( 13.72 ) 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 omap 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. 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/omap-iommu.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index 537e402f9bba97..34340ef15241bc 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1555,16 +1555,31 @@ static void _omap_iommu_detach_dev(struct omap_iommu_domain *omap_domain, omap_domain->dev = NULL; } -static void omap_iommu_set_platform_dma(struct device *dev) +static int omap_iommu_identity_attach(struct iommu_domain *identity_domain, + struct device *dev) { struct iommu_domain *domain = iommu_get_domain_for_dev(dev); - struct omap_iommu_domain *omap_domain = to_omap_domain(domain); + struct omap_iommu_domain *omap_domain; + if (domain == identity_domain || !domain) + return 0; + + omap_domain = to_omap_domain(domain); spin_lock(&omap_domain->lock); _omap_iommu_detach_dev(omap_domain, dev); spin_unlock(&omap_domain->lock); + return 0; } +static struct iommu_domain_ops omap_iommu_identity_ops = { + .attach_dev = omap_iommu_identity_attach, +}; + +static struct iommu_domain omap_iommu_identity_domain = { + .type = IOMMU_DOMAIN_IDENTITY, + .ops = &omap_iommu_identity_ops, +}; + static struct iommu_domain *omap_iommu_domain_alloc(unsigned type) { struct omap_iommu_domain *omap_domain; @@ -1732,11 +1747,11 @@ static struct iommu_group *omap_iommu_device_group(struct device *dev) } static const struct iommu_ops omap_iommu_ops = { + .identity_domain = &omap_iommu_identity_domain, .domain_alloc = omap_iommu_domain_alloc, .probe_device = omap_iommu_probe_device, .release_device = omap_iommu_release_device, .device_group = omap_iommu_device_group, - .set_platform_dma_ops = omap_iommu_set_platform_dma, .pgsize_bitmap = OMAP_IOMMU_PGSIZES, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = omap_iommu_attach_dev,