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Mon, 21 Oct 2024 17:20:00 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v4 01/11] iommufd: Move struct iommufd_object to public iommufd header Date: Mon, 21 Oct 2024 17:19:23 -0700 Message-ID: <1452c535a2e6a6c61f38fa752132db7e88b55770.1729553811.git.nicolinc@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A106:EE_|MN2PR12MB4319:EE_ X-MS-Office365-Filtering-Correlation-Id: e59aa6a1-d663-4e67-de90-08dcf22f4d05 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(82310400026)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Oct 2024 00:20:14.7351 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e59aa6a1-d663-4e67-de90-08dcf22f4d05 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A106.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4319 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241021_172025_063291_ED871566 X-CRM114-Status: GOOD ( 12.17 ) 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 Prepare for an embedded structure design for driver-level iommufd_viommu objects: // include/linux/iommufd.h struct iommufd_viommu { struct iommufd_object obj; .... }; // Some IOMMU driver struct iommu_driver_viommu { struct iommufd_viommu core; .... }; It has to expose struct iommufd_object and enum iommufd_object_type from the core-level private header to the public iommufd header. Reviewed-by: Jason Gunthorpe Signed-off-by: Nicolin Chen Reviewed-by: Kevin Tian --- drivers/iommu/iommufd/iommufd_private.h | 25 +------------------------ include/linux/iommufd.h | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/iommu/iommufd/iommufd_private.h b/drivers/iommu/iommufd/iommufd_private.h index f1d865e6fab6..1bb8c0aaecd1 100644 --- a/drivers/iommu/iommufd/iommufd_private.h +++ b/drivers/iommu/iommufd/iommufd_private.h @@ -5,8 +5,8 @@ #define __IOMMUFD_PRIVATE_H #include +#include #include -#include #include #include #include @@ -122,29 +122,6 @@ static inline int iommufd_ucmd_respond(struct iommufd_ucmd *ucmd, return 0; } -enum iommufd_object_type { - IOMMUFD_OBJ_NONE, - IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE, - IOMMUFD_OBJ_DEVICE, - IOMMUFD_OBJ_HWPT_PAGING, - IOMMUFD_OBJ_HWPT_NESTED, - IOMMUFD_OBJ_IOAS, - IOMMUFD_OBJ_ACCESS, - IOMMUFD_OBJ_FAULT, -#ifdef CONFIG_IOMMUFD_TEST - IOMMUFD_OBJ_SELFTEST, -#endif - IOMMUFD_OBJ_MAX, -}; - -/* Base struct for all objects with a userspace ID handle. */ -struct iommufd_object { - refcount_t shortterm_users; - refcount_t users; - enum iommufd_object_type type; - unsigned int id; -}; - static inline bool iommufd_lock_obj(struct iommufd_object *obj) { if (!refcount_inc_not_zero(&obj->users)) diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h index 30f832a60ccb..22948dd03d67 100644 --- a/include/linux/iommufd.h +++ b/include/linux/iommufd.h @@ -8,6 +8,7 @@ #include #include +#include #include struct device; @@ -18,6 +19,29 @@ struct iommufd_ctx; struct iommufd_device; struct page; +enum iommufd_object_type { + IOMMUFD_OBJ_NONE, + IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE, + IOMMUFD_OBJ_DEVICE, + IOMMUFD_OBJ_HWPT_PAGING, + IOMMUFD_OBJ_HWPT_NESTED, + IOMMUFD_OBJ_IOAS, + IOMMUFD_OBJ_ACCESS, + IOMMUFD_OBJ_FAULT, +#ifdef CONFIG_IOMMUFD_TEST + IOMMUFD_OBJ_SELFTEST, +#endif + IOMMUFD_OBJ_MAX, +}; + +/* Base struct for all objects with a userspace ID handle. */ +struct iommufd_object { + refcount_t shortterm_users; + refcount_t users; + enum iommufd_object_type type; + unsigned int id; +}; + struct iommufd_device *iommufd_device_bind(struct iommufd_ctx *ictx, struct device *dev, u32 *id); void iommufd_device_unbind(struct iommufd_device *idev);