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Mon, 30 Mar 2026 09:38:46 -0500 From: To: , , , , , , , , CC: Alejandro Lucero Subject: [PATCH v25 08/11] cxl: Export function for unwinding cxl by accelerators Date: Mon, 30 Mar 2026 15:38:24 +0100 Message-ID: <20260330143827.1278677-9-alejandro.lucero-palau@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260330143827.1278677-1-alejandro.lucero-palau@amd.com> References: <20260330143827.1278677-1-alejandro.lucero-palau@amd.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000A672F:EE_|PH8PR12MB6890:EE_ X-MS-Office365-Filtering-Correlation-Id: 926858de-7ecd-4c82-757d-08de8e6a0f5e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|36860700016|82310400026|376014|22082099003|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: tkxseo//PoWPzmijVtAcCP5XIVYIQ/GoSeA0R4RUW/vN31iUaCgfn/m7HfUlXRdVtAC+tbOsDO3XbuYSL5bvGcanV0CyjFksoScm4mcTKXMpdMCO4AKeELihuiylB+eOzi9tbMudVDd9YRgRLOgGuc62zuJZD2z+BLnNhD1d9uuCWqwELwoURzHPl9+CKbpdh7JwwMtclVEWG/FXMFAj8BWJw65p7B4JMsDU60a4HRlmpTIhryyjndMBHY5xWQrV+1M2TaQYLoUVfRZvEeBYHuTM30JWpkh0ARnWVw5O0/0b/n6s8v0YcbM8oPxh6MR5lucADxMWoqGiVyHdJ2r2c7o8V0d1D4WeVfhW+59blM9FrANGDrSHROb/0hQ40Urd++LZEzYYl9qRULEHdqFpVukZ60TzbeoFUJhEr/6cHAPism68/PZJlfI6UIfin1sgCPGp7SSNVac+riiflTLgxH+ze3H43BLW8dmgud0O6MBfa2PsVGt3cnqEPXKkG1P2EnMGQ3t+2JIH34YmQIt6T5gXDoe0SGCE/DRnIlm7OlWt0cWbhRa0fgmWz2ie34mCQtko44rdOWaGlm6tvrcqYDrjfXKn/+Fc8GLGehyLJMj3hE1zSsuFf6t2ZNjWcU+Gs0yVyByF+fZOzKvGsEkQ2a3kOgQt5zSwCgtKQcQDJVXcvI1qo855z+vxvgB/wLvyAc8/jZP6EoU7dl6b0hAvh0jFcJyFMH9T8PKf+D8+dG1u09Q6ITJPJNAsGF5Qy5d+9hD4ltfoGNoq/FDx7kY/uw== X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb08.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(36860700016)(82310400026)(376014)(22082099003)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: fsuadvH1xLlaDapmpG40WZelCgqraAO3vWT5eCKHe2exrRU7qUbBNh46CW6hYoy6aQn9akmKlZLdhp+Gvzya3BOL7Y0ItAWdofsquJ3b9Q7huAwmukDPogG9k+3Z+5oXpdMz1uw6xv2PaZHhueWU6l7IJIfZUgJg6UksEX1yYTYCGxZxCq+xjhG4QuEdkWXmGZKstslAS9et/MHuTGpX/0Xo/P75iPOgfjirB+ws3Sii9ahATtQTeuZr8RSc1/RlIgU54aP9aIiRRUxpKej/je2/M8qI1GD4kURz24NlkHy8FscUyzcouRggp1h5MpcOucdak2nQtz9XJtCjvGSMbJ2IjXuMEIJkBMYHV7FhVsyXjzHC8IqOJ9Qk805GXe+lsIQeu/3WtaR3jf46PVrkNrOXtTUMJluIdIpZUGmR4jNA6BU+h6SM1ojofxxclQXu X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Mar 2026 14:38:50.7347 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 926858de-7ecd-4c82-757d-08de8e6a0f5e X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000A672F.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB6890 From: Alejandro Lucero Add cxl_unregister_region() to the accelerator driver API for a clean exit. Signed-off-by: Alejandro Lucero Reviewed-by: Dave Jiang --- drivers/cxl/core/region.c | 8 ++++++++ include/cxl/cxl.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 9c3ba911d865..b3a6d08be461 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -2490,6 +2490,14 @@ static void unregister_region(void *_cxlr) put_device(&cxlr->dev); } +void cxl_unregister_region(struct cxl_region *cxlr) +{ + struct cxl_port *port = to_cxl_port(cxlr->cxlrd->cxlsd.cxld.dev.parent); + + devm_release_action(port->uport_dev, unregister_region, cxlr); +} +EXPORT_SYMBOL_NS_GPL(cxl_unregister_region, "CXL"); + static struct lock_class_key cxl_region_key; static struct cxl_region *cxl_region_alloc(struct cxl_root_decoder *cxlrd, int id) diff --git a/include/cxl/cxl.h b/include/cxl/cxl.h index aa3cf8509b41..e046c59904a5 100644 --- a/include/cxl/cxl.h +++ b/include/cxl/cxl.h @@ -235,4 +235,5 @@ struct cxl_region; struct cxl_region *cxl_get_region_from_committed_decoder(struct cxl_memdev *cxlmd); struct range; int cxl_get_region_range(struct cxl_region *region, struct range *range); +void cxl_unregister_region(struct cxl_region *cxlr); #endif /* __CXL_CXL_H__ */ -- 2.34.1