From patchwork Fri Jul 23 19:31:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolin Chen X-Patchwork-Id: 12396853 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=-13.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 DD6ADC4338F for ; Fri, 23 Jul 2021 19:34:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 96E7760F21 for ; Fri, 23 Jul 2021 19:34:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 96E7760F21 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=AQRAmmE6TENDt+O52yIPQvCPQCYXNZGoqF1bU3GVXao=; b=xa+JaOWsuM4O0Z dK6djAcw0CGW8VPztIwzZEsF0IK3eHTx1pHnt4Xm9InWUteIFQ2oTH9F6YioR/RUIwJKaLaZC8uln jvYp7uXxj+a6RFTCKp6xC7JNSy9g8OKMfdbzm9ueZ2ZkBLi/rPCB1uXPpzDSrmWtNwjfhyWKvxFPK oyJlBBoV/e5xDsLKF30rmu5MJ3y3cKIcHxbaLssumi2u+R5Mww2grLSMVSshAEWf8u+OPeGGFPr7u Uu9tG7Z7YMO7sIi+FHea0BVL6hXUeodwN9dODaOSWtfe+27vsw7kszezTwEcUsp5pUwB0RQ4sxDeB FsUyNQs3PCrzdJc7rbWg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m70uP-005krF-IH; Fri, 23 Jul 2021 19:32:33 +0000 Received: from mail-bn8nam12on2042.outbound.protection.outlook.com ([40.107.237.42] helo=NAM12-BN8-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m70uL-005kpz-6M for linux-arm-kernel@lists.infradead.org; Fri, 23 Jul 2021 19:32:30 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=I9JLZ8tiONWf7O99BVGk4orK6PWeFdtCKp5+h8G2Q+t3nszvyxhX4Z3teVzVGstDskrugpVOlG+oIOCeBWJVWUkBy4gcvWWTzNbf6LG1Q10VVcHQafaK5uXZfhiXytkxTsrsU5pXR1Ri4WeMPoK4Y9ogBM0jQ8S5KkpPUUjEhS6nzNjW9eEkWSraqj6KV9NsZhkLt2aHboKs1xSLoZWZ+fFzF0k1uBMJA/6nfVVi0CZpxl7ImuHtjnNXut/jSys3Bv8YLcJWC+1P4lunvLYIw/Ed481DUbju+XNJr+1T8iF25eQ/ZjqJ6y1SPDGFr8sqzy0/4vjmFtSxAxKltkF6BQ== 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-SenderADCheck; bh=CBeoysCfJUKGAGZUktQBlX464uwfFvxKYQMFsO009a4=; b=DstOsl5Ycg+CAXJPSmkAP+XGBYOXCpakjWadvTfQfEN8/92ijjTz1tO1l/JmIgLiMc2HiovySscOBIxmoHBqf15lp17fCgqeG4wo9R4V6iEbLf2vDI2Oh0U3Hajo/JbQPPG/bRE2YLZKWxgXC6lz6gBEIx5eIqE7u4eqr7n0turiu/lyzEXqayBFVU23Dq6LngFUfBoYEwKF4iAvKU4eaCehEP3K3m/9TjJZJjAmf5VIBecDkpWGcaWa6fOy5i6WItQRoYeA8y4He+9sa9cTn/eQd5TvhjkCCguxHZx7r2/JeH2UQCEuLZ+ECTH7eYp1HlOuFRWnYRSZE0m6EW9nXw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.112.34) smtp.rcpttodomain=gmail.com smtp.mailfrom=nvidia.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); 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=CBeoysCfJUKGAGZUktQBlX464uwfFvxKYQMFsO009a4=; b=McZYgQJZd2ZiEeV6YOXSyMBcg8H7h0jpVbQMvfvzhDsCw4w2hjiGuBnPc+Ju+NSdPHY3J+t/RMnKT8Tmc7Dal5nd+A1VCpoVVtFhK1B4rUrKLfXoDsoqYPeP9H72Z+c/oxISf7Mj3ssYUn95iNwzHLb/jVbLHBte1hlKk1RDZ3GQJS/CaWkN1il8iNmnOgiWAUB2++l6jpcbwgxarU8uq/woq6JjiaEIx9GeoAhAguligc9ku5p3DS215VMWwUwQm6XnffRuiloph66X1lnd2hpG4+Upd1g5i+2aJMXt4wybRwp8E/qMWpY8lQxojYvPVKPYy2wO8szOyUPF4YQMnA== Received: from DM3PR03CA0003.namprd03.prod.outlook.com (2603:10b6:0:50::13) by DM4PR12MB5229.namprd12.prod.outlook.com (2603:10b6:5:398::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4352.26; Fri, 23 Jul 2021 19:32:24 +0000 Received: from DM6NAM11FT065.eop-nam11.prod.protection.outlook.com (2603:10b6:0:50:cafe::54) by DM3PR03CA0003.outlook.office365.com (2603:10b6:0:50::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4352.25 via Frontend Transport; Fri, 23 Jul 2021 19:32:24 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.112.34) smtp.mailfrom=nvidia.com; gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.112.34 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.112.34; helo=mail.nvidia.com; Received: from mail.nvidia.com (216.228.112.34) by DM6NAM11FT065.mail.protection.outlook.com (10.13.172.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4352.24 via Frontend Transport; Fri, 23 Jul 2021 19:32:24 +0000 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 23 Jul 2021 19:32:24 +0000 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 23 Jul 2021 19:32:23 +0000 Received: from Asurada-Nvidia.nvidia.com (172.20.187.5) by mail.nvidia.com (172.20.187.15) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 23 Jul 2021 12:32:23 -0700 From: Nicolin Chen To: , , Subject: [RFC][Patch v1 0/2] iommu/arm-smmu-v3: Add NVIDIA implementation Date: Fri, 23 Jul 2021 12:31:38 -0700 Message-ID: <20210723193140.9690-1-nicolinc@nvidia.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c252ea11-9b8a-4399-a818-08d94e109957 X-MS-TrafficTypeDiagnostic: DM4PR12MB5229: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:9508; 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:216.228.112.34; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE; SFS:(4636009)(396003)(136003)(39860400002)(376002)(346002)(36840700001)(46966006)(426003)(36860700001)(110136005)(36756003)(47076005)(336012)(2906002)(4326008)(186003)(7416002)(478600001)(82310400003)(82740400003)(7636003)(5660300002)(1076003)(86362001)(54906003)(70206006)(316002)(8936002)(6666004)(26005)(36906005)(83380400001)(2616005)(70586007)(356005)(8676002)(7696005); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jul 2021 19:32:24.7648 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c252ea11-9b8a-4399-a818-08d94e109957 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT065.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5229 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210723_123229_431548_3473A1BD X-CRM114-Status: GOOD ( 12.69 ) 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: , Cc: song.bao.hua@hisilicon.com, jean-philippe@linaro.org, nwatterson@nvidia.com, thunder.leizhen@huawei.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, yuzenghui@huawei.com, nicoleotsuka@gmail.com, eric.auger@redhat.com, thierry.reding@gmail.com, Jonathan.Cameron@huawei.com, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Nicolin Chen The SMMUv3 devices implemented in the Grace SoC support NVIDIA's custom CMDQ-Virtualization (CMDQV) hardware. Like the new ECMDQ feature first introduced in the ARM SMMUv3.3 specification, CMDQV adds multiple VCMDQ interfaces to supplement the single architected SMMU_CMDQ in an effort to reduce contention. This patch series adds CMDQV support to the arm-smmu-v3 driver by first borrowing the implementation infrastructure from the arm-smmu driver. The NVIDIA implementation is then introduced along with hooks allowing implmentations to specify custom issue_cmdlist methods. Additionally, the original issue_cmdlist and supporting methods in the arm-smmu-v3 driver are reworked to support alternative CMDQs. [ nicolinc: this v1 is more of base changes for CMDQV driver; while I am still integrating incremental features based on VFIO mdev, I sent these two out in order to collect comments and suggestions to see if the overall structure is promising. I will add more changes in v2 or later versions for more detailed implementations. Thank you! ] Nate Watterson (2): iommu/arm-smmu-v3: Add implementation infrastructure iommu/arm-smmu-v3: Add support for NVIDIA CMDQ-Virtualization hw MAINTAINERS | 2 + drivers/iommu/arm/arm-smmu-v3/Makefile | 2 +- .../iommu/arm/arm-smmu-v3/arm-smmu-v3-impl.c | 15 + drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 71 +-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 15 + .../iommu/arm/arm-smmu-v3/nvidia-smmu-v3.c | 425 ++++++++++++++++++ 6 files changed, 503 insertions(+), 27 deletions(-) create mode 100644 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-impl.c create mode 100644 drivers/iommu/arm/arm-smmu-v3/nvidia-smmu-v3.c