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Fri, 25 Oct 2024 16:50:02 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v5 01/13] iommufd: Move struct iommufd_object to public iommufd header Date: Fri, 25 Oct 2024 16:49:41 -0700 Message-ID: <013538e31b680be3616068425d40578ba27ff3f6.1729897352.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: SJ1PEPF000023CF:EE_|PH0PR12MB7472:EE_ X-MS-Office365-Filtering-Correlation-Id: 4720a013-7f35-4cb1-ea6d-08dcf54fc239 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(376014)(7416014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2024 23:50:08.9252 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4720a013-7f35-4cb1-ea6d-08dcf54fc239 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023CF.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB7472 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241025_165017_279550_6E6DAE83 X-CRM114-Status: GOOD ( 11.78 ) 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 Reviewed-by: Kevin Tian Signed-off-by: Nicolin Chen --- 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);