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Wysocki" , Len Brown , Pavel Machek , Li Ming , Jeff Johnson , Ying Huang , Yao Xingtao , Peter Zijlstra , Greg Kroah-Hartman , Nathan Fontenot , Terry Bowman , Robert Richter , Benjamin Cheatham , Zhijian Li , Borislav Petkov , Tomasz Wolski References: <20260210064501.157591-1-Smita.KoralahalliChannabasappa@amd.com> Content-Language: en-US From: "Koralahalli Channabasappa, Smita" In-Reply-To: <20260210064501.157591-1-Smita.KoralahalliChannabasappa@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SJ2PR07CA0017.namprd07.prod.outlook.com (2603:10b6:a03:505::17) To LV8PR12MB9714.namprd12.prod.outlook.com (2603:10b6:408:2a0::5) Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV8PR12MB9714:EE_|IA0PR12MB8206:EE_ X-MS-Office365-Filtering-Correlation-Id: 3e033f93-2a32-47a0-9b6c-08de6a719dc5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|7416014|376014; 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To validate the Typo here, this is DAX_HMEM = m. Rest all looks good. Thanks Smita. > REGISTER path, I forced REGISTER even in cases where SR completely > overlaps the CXL region as I did not have access to a system where the > CXL region range is smaller than the SR range. > > 850000000-284fffffff : Soft Reserved > 850000000-284fffffff : CXL Window 0 > 850000000-280fffffff : region0 > 850000000-284fffffff : dax6.0 > 850000000-284fffffff : System RAM (kmem) > > "path":"\/platform\/hmem.6", > "id":6, > "size":"128.00 GiB (137.44 GB)", > "align":2097152 > > [ 30.897665] devm_cxl_add_dax_region: cxl_region region0: region0: > register dax_region0 > [ 30.921015] hmem: hmem_platform probe started. > [ 31.017946] hmem_platform hmem_platform.0: Soft Reserved not fully > contained in CXL; using HMEM > [ 31.056310] alloc_dev_dax_range: dax6.0: alloc range[0]: > 0x0000000850000000:0x000000284fffffff > [ 34.781516] cxl-dax: cxl_dax_region_init() > [ 34.781522] cxl-dax: registering driver. > [ 34.781523] cxl-dax: dax_hmem work flushed. > [ 34.781549] alloc_dax_region: cxl_dax_region dax_region0: dax_region > resource conflict for [mem 0x850000000-0x284fffffff] > [ 34.781552] cxl_bus_probe: cxl_dax_region dax_region0: probe: -12 > [ 34.781554] cxl_dax_region dax_region0: probe with driver cxl_dax_region > failed with error -12 > [snip]