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Tue, 3 Dec 2024 14:10:34 -0800 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v2 02/13] iommufd/fault: Move iommufd_fault_iopf_handler() to header Date: Tue, 3 Dec 2024 14:10:07 -0800 Message-ID: <137e3357f00b30a08c2b49c00b968a88af8cb5d1.1733263737.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: MN1PEPF0000F0E2:EE_|CY5PR12MB6369:EE_ X-MS-Office365-Filtering-Correlation-Id: bd23e13f-549a-4f2c-94ab-08dd13e75b53 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: 03 Dec 2024 22:10:54.5180 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bd23e13f-549a-4f2c-94ab-08dd13e75b53 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: MN1PEPF0000F0E2.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6369 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241203_141106_025653_33F3492F X-CRM114-Status: GOOD ( 11.25 ) 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 The new vIRQ object will need a similar function for drivers to report the vIOMMU related interrupts. Split the common part out to a smaller helper, and place it in the header so that CONFIG_IOMMUFD_DRIVER_CORE can include that in the driver.c file for drivers to use. Then keep iommufd_fault_iopf_handler() in the header too, since it's quite simple after all. Signed-off-by: Nicolin Chen --- drivers/iommu/iommufd/iommufd_private.h | 20 +++++++++++++++++++- drivers/iommu/iommufd/fault.c | 17 ----------------- 2 files changed, 19 insertions(+), 18 deletions(-) diff --git a/drivers/iommu/iommufd/iommufd_private.h b/drivers/iommu/iommufd/iommufd_private.h index b6d706cf2c66..8b378705ee71 100644 --- a/drivers/iommu/iommufd/iommufd_private.h +++ b/drivers/iommu/iommufd/iommufd_private.h @@ -451,6 +451,17 @@ struct iommufd_fault { struct wait_queue_head wait_queue; }; +static inline int iommufd_fault_notify(struct iommufd_fault *fault, + struct list_head *new_fault) +{ + mutex_lock(&fault->mutex); + list_add_tail(new_fault, &fault->deliver); + mutex_unlock(&fault->mutex); + + wake_up_interruptible(&fault->wait_queue); + return 0; +} + struct iommufd_attach_handle { struct iommu_attach_handle handle; struct iommufd_device *idev; @@ -469,7 +480,14 @@ iommufd_get_fault(struct iommufd_ucmd *ucmd, u32 id) int iommufd_fault_alloc(struct iommufd_ucmd *ucmd); void iommufd_fault_destroy(struct iommufd_object *obj); -int iommufd_fault_iopf_handler(struct iopf_group *group); + +static inline int iommufd_fault_iopf_handler(struct iopf_group *group) +{ + struct iommufd_hw_pagetable *hwpt = + group->attach_handle->domain->fault_data; + + return iommufd_fault_notify(hwpt->fault, &group->node); +} int iommufd_fault_domain_attach_dev(struct iommufd_hw_pagetable *hwpt, struct iommufd_device *idev); diff --git a/drivers/iommu/iommufd/fault.c b/drivers/iommu/iommufd/fault.c index 87c811b9c0d0..5694b04a48bd 100644 --- a/drivers/iommu/iommufd/fault.c +++ b/drivers/iommu/iommufd/fault.c @@ -433,20 +433,3 @@ int iommufd_fault_alloc(struct iommufd_ucmd *ucmd) return rc; } - -int iommufd_fault_iopf_handler(struct iopf_group *group) -{ - struct iommufd_hw_pagetable *hwpt; - struct iommufd_fault *fault; - - hwpt = group->attach_handle->domain->fault_data; - fault = hwpt->fault; - - mutex_lock(&fault->mutex); - list_add_tail(&group->node, &fault->deliver); - mutex_unlock(&fault->mutex); - - wake_up_interruptible(&fault->wait_queue); - - return 0; -}