From patchwork Wed Sep 13 13:43:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 13383034 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 9DDA6EDEC6E for ; Wed, 13 Sep 2023 13:44:32 +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=l7l4PjJXGgoeMXPr5AHQvAV2KVL/JVDck0QaVHickJs=; b=JgSKpUieoLTQKu +ELa9KjqX35j3HfM6ky9g40kPSIzEidNsboQ0twOnoO9XTLKyoP/pCFMpSdQMu3Z/7rMhHY0qUz2n +R12BFAdyPFp+TRJfipm/YSFfq4C3Q1Q3uPQzakpF8Trzxr/e9e6B4+le7d1Bb6nGKF7maIhstSJE 3OeT1waF8d+7CMub6dTV/AsYYk2ZrPQqBHdTnQhJK5rcXgblOzWu5dAiC853kcOkmE19umoGhxxvT gO13X0xZEcxVPemrGr0suUjiBPChFpI9IHRWl12jK4hrkp6qkgijJaEA+Z1XmLlhl6QGUAuXvYAf1 yoT7PF4QOAZE3VhiX0Gw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qgQAK-0060ZB-0O; Wed, 13 Sep 2023 13:44:24 +0000 Received: from mail-dm6nam12on20629.outbound.protection.outlook.com ([2a01:111:f400:fe59::629] helo=NAM12-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qgQA7-0060Ng-1t; Wed, 13 Sep 2023 13:44:14 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Dhp209GRmY2SdzzncXBj/08UDA+7J8dWFpCBzNFSaqWwWVyjLjHApjhWmLgXuZOC9a5mdm54PzjyiU4k2FSgcsDGa71Ji+3gR/i1XRxAIpLoYW9xKnou0GSgYF5gOTQoXzv5IyZeN0jXuHVBXhzy3fOox6/hzvSNa0gIDti/O7a6q1ZNWzBQCIMbQGMF2TBi0momT0ZLmfpkDZ5IcMGOmIw5HN7/Ae4wXTtTY4sZDYtNxfe+UrW2PInk3AxeqHDDuIshym4OzvLt8aevu60Qm3PQIfYCboNA8G+ANeYQ16ZY0ZWEqSe4XuflxxRuljVAtHMotxMJCBz5ZiTw64l7QQ== 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=nD0DVBSjjkpOMjmpyGW1ijl8HkGZ6shjv/AThFfPhtM=; b=boRbu/WCqsQKrBHolsLof21tMYo/Fb5QuzATiqGfrJNTlv2PDMwnMeVlLEG0L7yB1dClxrXhvbgyNXc/FXiPUK3czew/TMgRq8CGCF1eDHxmzTNBKHdNDjL9xfiPJBvl/N/Q0h6ctVg9h9IN1Czn7MWIJrTJ6xGVUUVA/+Xp5F5vpt9aHCBWo4FpAVEwFJ5/EfvR/2qT8SA5N2snNBMT8/g4+5ZUcN/CfPbjtT2JRXkrR+tteqTpX4i8PP7JLs+oUFT9d5lQ6srXIEX2e+PUk1omuDfAZD7//0nVCOj0lBuV7nsvWTJwbb6/YbkVQRRnYR/4OqruPg9W70GWtXz5RQ== 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=nD0DVBSjjkpOMjmpyGW1ijl8HkGZ6shjv/AThFfPhtM=; b=Koh7GwhMllrAA30YsnLiwB/smALsKHlfK+5oZF2jYkr0sRaQuBgpo8HwuYCxgERJLDCyA+4YYfBJr15F2uE7sOLQolRjaF6F3O+Eapu5D2u58S8/w3gUUQqjLzEZKa+YWsba6CuDTtvgSmLBsQdgKf+sZ4K+ua7BrMwQHXRBrqL8vRmpHiYXg38bcTk0cckZtojDBKMX/9qPoITaPGgoxW4h8pWBSyIiD+iRaaK8Z2dYbS7PcfLuhVcKcbdWdA8Odx+tkzwEEaYqWfXv6Eng0CZvYfHggXynDVl9JI87tyvF8wG6AmV+JTpHQluGwAh8sSBH0CoREnaJYbTvshAbdA== 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 SA3PR12MB7923.namprd12.prod.outlook.com (2603:10b6:806:317::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6745.34; Wed, 13 Sep 2023 13:44:03 +0000 Received: from LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::faf:4cd0:ae27:1073]) by LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::faf:4cd0:ae27:1073%6]) with mapi id 15.20.6768.036; Wed, 13 Sep 2023 13:44:03 +0000 From: Jason Gunthorpe To: Andy Gross , Alim Akhtar , Bjorn Andersson , AngeloGioacchino Del Regno , Baolin Wang , Christophe Leroy , Gerald Schaefer , Heiko Stuebner , iommu@lists.linux.dev, Jernej Skrabec , Jonathan Hunter , Joerg Roedel , Kevin Tian , 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, Russell King , linuxppc-dev@lists.ozlabs.org, Matthias Brugger , Matthew Rosato , Michael Ellerman , Nicholas Piggin , Orson Zhai , Rob Clark , Robin Murphy , Samuel Holland , Thierry Reding , Krishna Reddy , Chen-Yu Tsai , Will Deacon , Yong Wu , Chunyan Zhang Cc: Lu Baolu , Dmitry Osipenko , Jerry Snitselaar , Marek Szyprowski , Nicolin Chen , Niklas Schnelle , Steven Price , Thierry Reding Subject: [PATCH v8 13/24] iommu/omap: Implement an IDENTITY domain Date: Wed, 13 Sep 2023 10:43:46 -0300 Message-ID: <13-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.com> In-Reply-To: <0-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.com> References: X-ClientProxiedBy: MN2PR03CA0008.namprd03.prod.outlook.com (2603:10b6:208:23a::13) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|SA3PR12MB7923:EE_ X-MS-Office365-Filtering-Correlation-Id: 80be4208-358a-493b-5b0a-08dbb45f7c4c 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:(13230031)(39860400002)(396003)(346002)(376002)(136003)(366004)(1800799009)(451199024)(186009)(478600001)(38100700002)(83380400001)(36756003)(6512007)(26005)(921005)(6486002)(6506007)(2616005)(6666004)(86362001)(107886003)(41300700001)(316002)(54906003)(66476007)(5660300002)(4326008)(8936002)(7416002)(7406005)(66946007)(110136005)(2906002)(8676002)(66556008);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: 80be4208-358a-493b-5b0a-08dbb45f7c4c X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2023 13:44:00.4899 (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: 88bzyXfZ7TAVPQwocI8Etj1n02P2SQMAKjUKy36C4sW5TQagoR/j4+1EFkyH1r1Z X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR12MB7923 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230913_064411_651591_5DE1F3C5 X-CRM114-Status: GOOD ( 14.36 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=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 Reviewed-by: Lu Baolu Reviewed-by: Jerry Snitselaar 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,