From patchwork Thu Nov 30 01:10:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 13473847 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="ZMogeSyr" Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2084.outbound.protection.outlook.com [40.107.243.84]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 91E99D6C; Wed, 29 Nov 2023 17:11:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DFiLaMzjGL4xIELbk/3RnaadF7Tfu+iR9VKXWTKEAZ2F4ja/LfZ4GKjSJXZOo4IpXkFjmMkFAkd3cy2bChiCBonNSGFhXtDuJRyPRqzdGlZ+aAqxwRCy53iNBmi6rGWuBIMVnFO0SkdOD68iJHRYhA7wrZbpbwsXFU8r7C9CEHJWk6LWyG+3Q5pUgjaCTBTpSsSwoonItEClzOTo5kAWy8390o9KOHgxh3mWO27guITry31ANIFLHGZQKUUX6uEt84z+RAMIPDVc4NunFbYAASpygbrWG9woLFBq6BecMicXCjCuX+6MOw279GRS76AVF5ag/j9n2oyLiSd6TMqbHg== 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=cmT9sPIBC3zysKQfnRxRs9D8QedigHbyG5FAziwg6D8=; b=eVAvxlujyys66sXmYOzrRr2jGzvDJ6zo/9AnBODykRvLM9MfsxjMXSHNtehLYidXTq417ZbS2fGXyQuCeqZkKp0Dfxi8Kdzcax3CNm3rmR2Q0GoN2et5ZfsSxkxq35BfAnFreZsSjDGjFNfo7kMJ6ka6nM/yRMjRjS4t98hHIbCc+1V7P2losR4bDaad5Hp88/f3oVCuA3K6BFdMXwh4nDUqLC7/rhoO2vsnc0B2eMWYUu0p6vA8YqynS5NyrcbHG7bg5T+4gUTE9kCjHfFf1Y8oUYTpJPtAWk95MjBTNr4RdJ4oJTOzrm7HHZaEKlFUl7gXhC/mnPmCv+aNu9ErUw== 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=cmT9sPIBC3zysKQfnRxRs9D8QedigHbyG5FAziwg6D8=; b=ZMogeSyrHSb0hQo0F0XwNRHvcxtaitvVGc6td5a+tfeWbdR2ZeIvH2CbNy6j0xUfCqjMBvlPI8YPtw11U56YuMYIYe60a2eU0OYmPfNA+8yg844RJjKPzcq40ecM89e2ZE6v6Fe9EWfqxIFuMzMxPS7KH0LGQhGf/H2plldfHJTv3dwr1+IxoJGNqW4RthYy7FDZKWDN+Ketg/tEDE4jiMLI1j2Kc4YjRMdixA78x6W+ed7nsFWdxoqHzC28JPxK2HgT4i0xUoZqOfW0/a3HZVsIrtpbFAN2hboLMU/9id0K7jjaD7L8kem+W8Mi6Zh/Vi5wusRGuk7dwGHl2Ik9eg== 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 21/30] iommu/mtk_v1: Move to iommu_fw_alloc_per_device_ids() Date: Wed, 29 Nov 2023 21:10:28 -0400 Message-ID: <21-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: SN7P222CA0016.NAMP222.PROD.OUTLOOK.COM (2603:10b6:806:124::16) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) Precedence: bulk X-Mailing-List: linux-hardening@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: 4c71b8dc-de76-4503-8d14-08dbf1412c30 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)(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);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: 4c71b8dc-de76-4503-8d14-08dbf1412c30 X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Nov 2023 01:10:42.1282 (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: 1lrE0VFQK0CIwfE+Q2VPQVeLKyz3T+ah96t1DC1KIqTlf0zqIzfcMYfwD3xMmls2 X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB5484 mtk_v1 supports a single iommu instance with multiple ids. It open codes the fwspec parse inside the driver, remove all of this and just call iommu_of_get_single_iommu() to do the same parsing. Using iommu_of_allow_bus_probe() so this continues to work at bus probe time. Introduce a per-device data to store the iommu and ids list. Allocate and initialize it with iommu_fw_alloc_per_device_ids(). Fold mtk_iommu_v1_create_mapping() into mtk_iommu_v1_probe_device() as it is done only once per device. Fix the error handling so we don't leak mappings on error paths. Convert the rest of the funcs from calling dev_iommu_fwspec_get() to using the per-device data and remove all use of fwspec. Convert the places using dev_iommu_priv_get() to use the per-device data not the iommu. Signed-off-by: Jason Gunthorpe --- drivers/iommu/mtk_iommu_v1.c | 162 +++++++++++++++-------------------- 1 file changed, 67 insertions(+), 95 deletions(-) diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 25b41222abaec1..82f500a1ad74e9 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -108,6 +109,12 @@ struct mtk_iommu_v1_data { struct mtk_iommu_v1_suspend_reg reg; }; +struct mtk_iommu_v1_device { + struct mtk_iommu_v1_data *iommu; + unsigned int num_ids; + u32 ids[] __counted_by(num_ids); +}; + struct mtk_iommu_v1_domain { spinlock_t pgtlock; /* lock for page table */ struct iommu_domain domain; @@ -232,14 +239,14 @@ static irqreturn_t mtk_iommu_v1_isr(int irq, void *dev_id) static void mtk_iommu_v1_config(struct mtk_iommu_v1_data *data, struct device *dev, bool enable) { + struct mtk_iommu_v1_device *mdev = dev_iommu_priv_get(dev); struct mtk_smi_larb_iommu *larb_mmu; unsigned int larbid, portid; - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); int i; - for (i = 0; i < fwspec->num_ids; ++i) { - larbid = mt2701_m4u_to_larb(fwspec->ids[i]); - portid = mt2701_m4u_to_port(fwspec->ids[i]); + for (i = 0; i < mdev->num_ids; ++i) { + larbid = mt2701_m4u_to_larb(mdev->ids[i]); + portid = mt2701_m4u_to_port(mdev->ids[i]); larb_mmu = &data->larb_imu[larbid]; dev_dbg(dev, "%s iommu port: %d\n", @@ -293,7 +300,8 @@ static void mtk_iommu_v1_domain_free(struct iommu_domain *domain) static int mtk_iommu_v1_attach_device(struct iommu_domain *domain, struct device *dev) { - struct mtk_iommu_v1_data *data = dev_iommu_priv_get(dev); + struct mtk_iommu_v1_device *mdev = dev_iommu_priv_get(dev); + struct mtk_iommu_v1_data *data = mdev->iommu; struct mtk_iommu_v1_domain *dom = to_mtk_domain(domain); struct dma_iommu_mapping *mtk_mapping; int ret; @@ -319,7 +327,8 @@ static int mtk_iommu_v1_attach_device(struct iommu_domain *domain, struct device 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); + struct mtk_iommu_v1_device *mdev = dev_iommu_priv_get(dev); + struct mtk_iommu_v1_data *data = mdev->iommu; mtk_iommu_v1_config(data, dev, false); return 0; @@ -394,128 +403,91 @@ static phys_addr_t mtk_iommu_v1_iova_to_phys(struct iommu_domain *domain, dma_ad static const struct iommu_ops mtk_iommu_v1_ops; -/* - * MTK generation one iommu HW only support one iommu domain, and all the client - * sharing the same iova address space. - */ -static int mtk_iommu_v1_create_mapping(struct device *dev, struct of_phandle_args *args) +static struct iommu_device * +mtk_iommu_v1_probe_device(struct iommu_probe_info *pinf) { - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct mtk_iommu_v1_data *data; - struct platform_device *m4updev; struct dma_iommu_mapping *mtk_mapping; + struct mtk_iommu_v1_device *mdev; + struct device *dev = pinf->dev; + struct mtk_iommu_v1_data *data; + int idx, larbid, larbidx; + struct device_link *link; + struct device *larbdev; int ret; - if (args->args_count != 1) { - dev_err(dev, "invalid #iommu-cells(%d) property for IOMMU\n", - args->args_count); - return -EINVAL; - } + iommu_of_allow_bus_probe(pinf); + data = iommu_of_get_single_iommu(pinf, &mtk_iommu_v1_ops, 1, + struct mtk_iommu_v1_data, iommu); + if (IS_ERR(data)) + return ERR_CAST(data); - if (!fwspec) { - ret = iommu_fwspec_init(dev, &args->np->fwnode, &mtk_iommu_v1_ops); - if (ret) - return ret; - fwspec = dev_iommu_fwspec_get(dev); - } else if (dev_iommu_fwspec_get(dev)->ops != &mtk_iommu_v1_ops) { - return -EINVAL; - } + mdev = iommu_fw_alloc_per_device_ids(pinf, mdev); + if (IS_ERR(mdev)) + return ERR_CAST(mdev); + mdev->iommu = data; - if (!dev_iommu_priv_get(dev)) { - /* Get the m4u device */ - m4updev = of_find_device_by_node(args->np); - if (WARN_ON(!m4updev)) - return -EINVAL; - - dev_iommu_priv_set(dev, platform_get_drvdata(m4updev)); - } - - ret = iommu_fwspec_add_ids(dev, args->args, 1); - if (ret) - return ret; - - data = dev_iommu_priv_get(dev); + /* + * MTK generation one iommu HW only support one iommu domain, and all + * the client sharing the same iova address space. + */ mtk_mapping = data->mapping; if (!mtk_mapping) { /* MTK iommu support 4GB iova address space. */ mtk_mapping = arm_iommu_create_mapping(&platform_bus_type, 0, 1ULL << 32); - if (IS_ERR(mtk_mapping)) - return PTR_ERR(mtk_mapping); + if (IS_ERR(mtk_mapping)) { + ret = PTR_ERR(mtk_mapping); + goto err_free; + } data->mapping = mtk_mapping; } - return 0; -} - -static struct iommu_device *mtk_iommu_v1_probe_device(struct device *dev) -{ - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct of_phandle_args iommu_spec; - struct mtk_iommu_v1_data *data; - int err, idx = 0, larbid, larbidx; - struct device_link *link; - struct device *larbdev; - - /* - * In the deferred case, free the existed fwspec. - * Always initialize the fwspec internally. - */ - if (fwspec) { - iommu_fwspec_free(dev); - fwspec = dev_iommu_fwspec_get(dev); - } - - while (!of_parse_phandle_with_args(dev->of_node, "iommus", - "#iommu-cells", - idx, &iommu_spec)) { - - err = mtk_iommu_v1_create_mapping(dev, &iommu_spec); - of_node_put(iommu_spec.np); - if (err) - return ERR_PTR(err); - - /* dev->iommu_fwspec might have changed */ - fwspec = dev_iommu_fwspec_get(dev); - idx++; - } - - data = dev_iommu_priv_get(dev); - /* Link the consumer device with the smi-larb device(supplier) */ - larbid = mt2701_m4u_to_larb(fwspec->ids[0]); - if (larbid >= MT2701_LARB_NR_MAX) - return ERR_PTR(-EINVAL); + larbid = mt2701_m4u_to_larb(mdev->ids[0]); + if (larbid >= MT2701_LARB_NR_MAX) { + ret = -EINVAL; + goto err_mapping; + } - for (idx = 1; idx < fwspec->num_ids; idx++) { - larbidx = mt2701_m4u_to_larb(fwspec->ids[idx]); + for (idx = 1; idx < mdev->num_ids; idx++) { + larbidx = mt2701_m4u_to_larb(mdev->ids[idx]); if (larbid != larbidx) { dev_err(dev, "Can only use one larb. Fail@larb%d-%d.\n", larbid, larbidx); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto err_mapping; } } larbdev = data->larb_imu[larbid].dev; - if (!larbdev) - return ERR_PTR(-EINVAL); + if (!larbdev) { + ret = -EINVAL; + goto err_mapping; + } link = device_link_add(dev, larbdev, DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS); if (!link) dev_err(dev, "Unable to link %s\n", dev_name(larbdev)); + dev_iommu_priv_set(pinf->dev, mdev); return &data->iommu; + +err_mapping: + arm_iommu_release_mapping(mtk_mapping); +err_free: + kfree(mdev); + return ERR_PTR(ret); } static void mtk_iommu_v1_probe_finalize(struct device *dev) { + struct mtk_iommu_v1_device *mdev = dev_iommu_priv_get(dev); + struct mtk_iommu_v1_data *data = mdev->iommu; struct dma_iommu_mapping *mtk_mapping; - struct mtk_iommu_v1_data *data; int err; - data = dev_iommu_priv_get(dev); mtk_mapping = data->mapping; err = arm_iommu_attach_device(dev, mtk_mapping); @@ -525,15 +497,15 @@ static void mtk_iommu_v1_probe_finalize(struct device *dev) static void mtk_iommu_v1_release_device(struct device *dev) { - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct mtk_iommu_v1_data *data; + struct mtk_iommu_v1_device *mdev = dev_iommu_priv_get(dev); + struct mtk_iommu_v1_data *data = mdev->iommu; struct device *larbdev; unsigned int larbid; - data = dev_iommu_priv_get(dev); - larbid = mt2701_m4u_to_larb(fwspec->ids[0]); + larbid = mt2701_m4u_to_larb(mdev->ids[0]); larbdev = data->larb_imu[larbid].dev; device_link_remove(dev, larbdev); + kfree(mdev); } static int mtk_iommu_v1_hw_init(const struct mtk_iommu_v1_data *data) @@ -580,7 +552,7 @@ 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_paging = mtk_iommu_v1_domain_alloc_paging, - .probe_device = mtk_iommu_v1_probe_device, + .probe_device_pinf = mtk_iommu_v1_probe_device, .probe_finalize = mtk_iommu_v1_probe_finalize, .release_device = mtk_iommu_v1_release_device, .device_group = generic_device_group,