From patchwork Thu Nov 30 01:10:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 748614 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="doEttS/l" Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2053.outbound.protection.outlook.com [40.107.243.53]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA1D110CB; Wed, 29 Nov 2023 17:11:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HORhBOqFrxfTFHe3FuDPVTyBPEWQkdsesYUlMZPPB/PV1+nha7Sx3tZqUEDwqK/RyTn/VvDUfNXbMh4O2Y3MS4q3HAb+CLMQhrGuHubL3GLcAreTh1+iE/3CIrje6cyH65XJ3zvhfE2rKmstu179fGH5CmPzXEhE3Z/3/slbLpTpaz1SyCuD3RThDLXOV8Uwg8i1QYl2jztVJIpSfHMb8Q93HpPF5y0x6FrXqypHabLyDWRPTgWsV6MdDqMuLJolcN9j/nHHZCnMBQ99LNLxvm3RJthe36g9B3XrnJiVBGEfyTveNU2GI3Abx2gqZrhLfk9pcxuPZlOMSU0d3lRlWA== 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=1otHA+LIL3W1WZMWhBTV+rqHH68xzfh1OFbgeJsyAew=; b=dIzx2Ow2yuwP8iT0OWYVSHQEpkPqxbjqRm2Cn0wg3J13QvBEAJjFA2iaXJK15n612Gm+EMQRd3TY13xWecpUctJHJUm+M+H8o1WjVa1twVae21ulKjyqsm7L8Mf78R0r5+DYnVyypPYpxoEXXRdeEREiHSUnPSt6wapzXeeAcfTrdp77z0m04b1tR5B6kMNrExIYgrHlzz/8ifB892SmyyakxdlK+3IbrnmqoCvmBsB7uSgxZL/4VXV5Rvz5ktR4bcq/ynEMl2LT83B9yRRJ3uzd5B0QCXKs0h4397I4mFfdRk+W8aTXizj+Q9NTqHIhANvbifhfuR0U696EDoMtEw== 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=1otHA+LIL3W1WZMWhBTV+rqHH68xzfh1OFbgeJsyAew=; b=doEttS/lS7F+WQ093rXr+f1jzMGxAYZ/ZFHsN0NuBff5/S67oZASEaVROX1bTDHL2faxMu9E/W7Fcl7wXUzFw7b0vR8RPM1NimFG94/Qcyo/5TT6PBsvKylYx3MaypZOrZGa0BPQ/MAa9VBM/UErjL4SQtc5fOQ6CpqWlIyjtEbSsQC84neUevIH1P5AaG6wDmplLuAjGbSM363ruUoNCanwqpxK7M67qrfp48EhTwmSrFWklUMvxNJUvG3wgD9UMz9zsxA8f/W4vVQcpbvENRDHvYKW8bY0y7HIqhbF/k1N6290ZmqjZWf+3BsFhWuBv8kmrBp23yNggPQbsA6EkQ== 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 PH0PR12MB5484.namprd12.prod.outlook.com (2603:10b6:510:eb::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.24; Thu, 30 Nov 2023 01:10:52 +0000 Received: from LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::60d4:c1e3:e1aa:8f93]) by LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::60d4:c1e3:e1aa:8f93%4]) with mapi id 15.20.7046.015; Thu, 30 Nov 2023 01:10:52 +0000 From: Jason Gunthorpe To: acpica-devel@lists.linux.dev, Andy Gross , Alim Akhtar , Alyssa Rosenzweig , Bjorn Andersson , AngeloGioacchino Del Regno , asahi@lists.linux.dev, Baolin Wang , devicetree@vger.kernel.org, Frank Rowand , Hanjun Guo , "Gustavo A. R. Silva" , Heiko Stuebner , iommu@lists.linux.dev, Jean-Philippe Brucker , Jernej Skrabec , Jonathan Hunter , Joerg Roedel , Kees Cook , Konrad Dybcio , Krzysztof Kozlowski , Len Brown , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-hardening@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, Lorenzo Pieralisi , Marek Szyprowski , Hector Martin , Matthias Brugger , Orson Zhai , "Rafael J. Wysocki" , Rob Clark , Robert Moore , Rob Herring , Robin Murphy , Samuel Holland , Sudeep Holla , Sven Peter , Thierry Reding , Krishna Reddy , virtualization@lists.linux.dev, Chen-Yu Tsai , Will Deacon , Yong Wu , Chunyan Zhang Cc: =?utf-8?q?Andr=C3=A9_Draszik?= , patches@lists.linux.dev Subject: [PATCH 02/30] ACPI: VIOT: Make a viot_iommu_for_each_id() Date: Wed, 29 Nov 2023 21:10:09 -0400 Message-ID: <2-v1-f82a05539a64+5042-iommu_fwspec_p2_jgg@nvidia.com> In-Reply-To: <0-v1-f82a05539a64+5042-iommu_fwspec_p2_jgg@nvidia.com> References: X-ClientProxiedBy: SN6PR08CA0011.namprd08.prod.outlook.com (2603:10b6:805:66::24) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|PH0PR12MB5484:EE_ X-MS-Office365-Filtering-Correlation-Id: 3b7c2a46-bde1-43ba-de9f-08dbf1412c2b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 2i71bxGKun33R1DeXVHUpr3CXstj44PRyf0JQC09JOqxra+4rpqi5V/a+/WNw06/dj83EGkjEtD9uRBPznXeSDDkNdiSHgywYfHFohfJfP5b4rz7XPeQjq9TcVX9mDGt1dEHDjb0iasrFInbtiy7uLqrvF3BfAh/nQqbR5aEWR/lmLQoDZEiu3TUE8unhP/ke6+ROgtIBc/402OUrVaT5sn4QOgTnOAOctotEwEkLjyyh3IjWXYFRh+aBAV/94KDX6IUP8AGOGvnVOvMSmj8UWwnH6bZFKZcCddZBBxbb11988ipr7g7OlpVTCplEPjQj2GAyLjdL26mzDwDi7+FqE1dYFb7uZmb0cgcf0Nmd9dcI9FZOjs/qlRwk+m0CQ0XlMVu2WvTh9o4YVkntL2HGmFrNPEK01LJc0rtP/hUGEgdVJuqdhLr6akwU3miEWqKf5QGHKUhvRYdLUBNhVbblfanJ0na3Z/TL4VY9SLfFNvfR6z0I29DRgxucRw+JF1oP8gv1fBVfNUFRWM8qHkySEglkzkqh8mV/m0sg929hf/Rux4IUzNyRAuu4q+WRIzPGBGmIYbFwvAm6le49EmunEZVWerPmJYb+CGZZBkheEqksA/whO/VlZDCoH+wheChpCp9NkzpFNPFDAIG8aJgQaKelX7TxfkNz45ZEVkrcGo= 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)(366004)(346002)(136003)(396003)(39860400002)(376002)(230922051799003)(451199024)(1800799012)(186009)(64100799003)(1191002)(8936002)(110136005)(8676002)(316002)(66556008)(4326008)(86362001)(66476007)(6486002)(478600001)(66946007)(41300700001)(36756003)(921008)(7416002)(7366002)(2906002)(7406005)(5660300002)(38100700002)(2616005)(6512007)(6506007)(6666004)(83380400001)(26005)(202311291699003)(4216001); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: o93vOzgPifG1P4VbkFhWTGFFahkhlARUTrm73NWNXsXUnTuxLZ6yq8GJaBMtRGwqFGsGLuWRFp2q4YQM+9D6gQ2MePrzhiz3/gU5Tz7/NS2z6BpVbDiAE96w35u0Or/eXUXm7Xzcm66fLtslM1UNp/ABFr1THw/JegH0NWolq9xqMS/B9eKUvF42pJnrTnWuXpMPEh/0ho4iEbriw+9e97QbTc7u9ChjUxcuyWqjOsaNUWM7QkDTq6renXotM9hzoq8AYz079eSg/zH3WlZxVmGM9Q8pTWPOoU7JmBQUMBgb9ScqzzwZEDu8Jb+sOTGlw5v0/SGatkYAof4EaHSJRcLg10NyzoGR5/BxOtZDt5AhVtdK29nbvqsA9/b1YaVDJB+crL7vk9KHdCW5MsJ9BxDv8DBnX7phfHXtU/CP+v8bwACV1XYaqxLdnvrhqHGZeoQjFdTnRZQ9T1AUVFybd0E7i6ZOyPyTZ/lEh9Eww4cvKsifl0XR9CITk+a2HNLdoQoCZXiyddBKcgzN5Fk3TAN1uAnCZLr/+imCvCuj+GYyja5AMJODWY23umKFYSXk1+k9P2S3E4vWYZ94ORdethA5gzpFfcwui0/4PH8ZV065Ab7oxpqMLEoEMEnM9fVFiwEKLXiBnMZKCBGatPCFiHo5DwA+/dZzYuC79TNgGZV2sdYy8DM9L2HYn8qbFGtwkGfrXOr+6yeMyVrd4RP2ZcgQn1Xos4hD09ifvRxnlNFlfLVTHfcARbXWOKB+58PNw67IoAfRCyJipaIjfyYlP89rG7CAzERtn3z/Zawhmxz+rzvGQ74acndrk5d8IKMcQWk2xBiXRMNQLsfTvGfYfswXq5Eu3m85TH75mJpP6g4me/zdldZWhhnNg0zyBY+PgSd5sMErvND4/es1Mfs5LcrawXiZgf+eGoDU8/e9tekzm9nOLsGPIMnNi3ToMJm8qO1f/LvCu3NM0jAYkwQngplTWjNLO9M+ntuwb3gIGIok4S5qFVjuyorrRSlsVeXH++qLaQH1K9ECUvEWvl5wInCKkuVlknqJSXTzpi+BMmQRb0jPIX7Kh4u86A1cBehBlgFKUSYguRzYsIdXOnl8ZoYgm3YEzhxikhb+z5Q2L5ym33IWUAN78djx5V7kye2dMNgxdEQ2fDn1ilL0+hzS6iCS4h4wCHOkAogroJvChs/vYvEFosBnG4/9YwZ0D6NcdyPBGV3OgKjxGSG0F8ka1V7wNuImt6rDWS+6o7BOz74Q7kpmKCjTUANR+WtMC8pgtquDAa2sA72tJoDK3u4QNN/4wWok5W4iwD4KbFUPolUV0qqSQAB8+v2fZBNRwpwohOJO/CKMXug58RFtgNjr78jkLMLFFf2k34bczjUkiG637PQFFk0Di7IA7p8VWD2Yoadii1L+fg/yoDNZKQftOFxt8d+6yMGOFeVLUoXg7W7pfWz8UghOhbZw+BwvmmNayRhwoKZx9VvkzeifYv5vOL7UxN7ykuTl/OFazFw4QI4R9nCU5aDUSB2IjT2XfOsHZEPfShSoSsAv4nhyziF9zCGBM7GJztsQySxonQWwzySNF2zDj+GDqo1w+/1oVIOb X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3b7c2a46-bde1-43ba-de9f-08dbf1412c2b X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Nov 2023 01:10:42.0115 (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: rKRdU3xUv0YfjqjwVjOiGYZpIlTC16NPNlmHBn1LiMBDSU/VmIXb/gDGNS0ISUvI X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB5484 Similar to of_iommu_for_each_id() this parses the VIOT ACPI description and invokes a function over each entry in the table. Have viot_iommu_configure() use the new function to call viot_dev_iommu_init(). Signed-off-by: Jason Gunthorpe --- drivers/acpi/viot.c | 54 +++++++++++++++++++++++---------------- include/linux/acpi_viot.h | 11 ++++++++ 2 files changed, 43 insertions(+), 22 deletions(-) diff --git a/drivers/acpi/viot.c b/drivers/acpi/viot.c index c8025921c129b2..7ab35ef05c84e0 100644 --- a/drivers/acpi/viot.c +++ b/drivers/acpi/viot.c @@ -25,13 +25,6 @@ #include #include -struct viot_iommu { - /* Node offset within the table */ - unsigned int offset; - struct fwnode_handle *fwnode; - struct list_head list; -}; - struct viot_endpoint { union { /* PCI range */ @@ -304,10 +297,10 @@ void __init acpi_viot_init(void) acpi_put_table(hdr); } -static int viot_dev_iommu_init(struct device *dev, struct viot_iommu *viommu, - u32 epid) +static int viot_dev_iommu_init(struct viot_iommu *viommu, u32 epid, void *info) { const struct iommu_ops *ops; + struct device *dev = info; if (!viommu) return -ENODEV; @@ -324,11 +317,17 @@ static int viot_dev_iommu_init(struct device *dev, struct viot_iommu *viommu, return acpi_iommu_fwspec_init(dev, epid, viommu->fwnode, ops); } -static int viot_pci_dev_iommu_init(struct pci_dev *pdev, u16 dev_id, void *data) +struct viot_pci_iommu_alias_info { + struct device *dev; + viot_for_each_fn fn; + void *info; +}; + +static int __for_each_pci_alias(struct pci_dev *pdev, u16 dev_id, void *data) { u32 epid; struct viot_endpoint *ep; - struct device *aliased_dev = data; + struct viot_pci_iommu_alias_info *info = data; u32 domain_nr = pci_domain_nr(pdev->bus); list_for_each_entry(ep, &viot_pci_ranges, list) { @@ -339,14 +338,14 @@ static int viot_pci_dev_iommu_init(struct pci_dev *pdev, u16 dev_id, void *data) epid = ((domain_nr - ep->segment_start) << 16) + dev_id - ep->bdf_start + ep->endpoint_id; - return viot_dev_iommu_init(aliased_dev, ep->viommu, - epid); + return info->fn(ep->viommu, epid, info->info); } } return -ENODEV; } -static int viot_mmio_dev_iommu_init(struct platform_device *pdev) +static int __for_each_platform(struct platform_device *pdev, + viot_for_each_fn fn, void *info) { struct resource *mem; struct viot_endpoint *ep; @@ -357,12 +356,28 @@ static int viot_mmio_dev_iommu_init(struct platform_device *pdev) list_for_each_entry(ep, &viot_mmio_endpoints, list) { if (ep->address == mem->start) - return viot_dev_iommu_init(&pdev->dev, ep->viommu, - ep->endpoint_id); + return fn(ep->viommu, ep->endpoint_id, info); } return -ENODEV; } +int viot_iommu_for_each_id(struct device *dev, viot_for_each_fn fn, void *info) +{ + if (dev_is_pci(dev)) { + struct viot_pci_iommu_alias_info pci_info = { + .dev = dev, + .fn = fn, + .info = info, + }; + return pci_for_each_dma_alias(to_pci_dev(dev), + __for_each_pci_alias, &pci_info); + } + + if (dev_is_platform(dev)) + return __for_each_platform(to_platform_device(dev), fn, info); + return -ENODEV; +} + /** * viot_iommu_configure - Setup IOMMU ops for an endpoint described by VIOT * @dev: the endpoint @@ -371,10 +386,5 @@ static int viot_mmio_dev_iommu_init(struct platform_device *pdev) */ int viot_iommu_configure(struct device *dev) { - if (dev_is_pci(dev)) - return pci_for_each_dma_alias(to_pci_dev(dev), - viot_pci_dev_iommu_init, dev); - else if (dev_is_platform(dev)) - return viot_mmio_dev_iommu_init(to_platform_device(dev)); - return -ENODEV; + return viot_iommu_for_each_id(dev, viot_dev_iommu_init, dev); } diff --git a/include/linux/acpi_viot.h b/include/linux/acpi_viot.h index a5a12243156377..fce4eefcae4aad 100644 --- a/include/linux/acpi_viot.h +++ b/include/linux/acpi_viot.h @@ -5,6 +5,17 @@ #include +struct viot_iommu { + /* Node offset within the table */ + unsigned int offset; + struct fwnode_handle *fwnode; + struct list_head list; +}; + +typedef int (*viot_for_each_fn)(struct viot_iommu *viommu, u32 epid, + void *info); +int viot_iommu_for_each_id(struct device *dev, viot_for_each_fn fn, void *info); + #ifdef CONFIG_ACPI_VIOT void __init acpi_viot_early_init(void); void __init acpi_viot_init(void);