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Sun, 1 Feb 2026 09:55:10 -0600 From: To: , , , , , , , , CC: Alejandro Lucero , Zhi Wang , "Jonathan Cameron" , Ben Cheatham , Alison Schofield , Davidlohr Bueso Subject: [PATCH v23 16/22] cxl: Make region type based on endpoint type Date: Sun, 1 Feb 2026 15:54:32 +0000 Message-ID: <20260201155438.2664640-17-alejandro.lucero-palau@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260201155438.2664640-1-alejandro.lucero-palau@amd.com> References: <20260201155438.2664640-1-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 Received-SPF: None (SATLEXMB03.amd.com: alejandro.lucero-palau@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099D8:EE_|DS0PR12MB8343:EE_ X-MS-Office365-Filtering-Correlation-Id: 38350f2e-c272-432a-4b9e-08de61aa4aea X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|82310400026|36860700013; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: yUh0MPdDgF8VG78hwPfqMs5SqitZ6evd7qCMWwQdTxOg+rGJ+KEo18j9TMG/GznJM64Kks+AAATctJjWpB+E9GSZn7yBf3goIuqjscyfme+qXsdMhDT9oUyia9IWmkqzVT6zpnLEHxoGFE5w3lvbku1S1y6JBNK7DGehLoUjtCq1scLf3qJcSSdo7n6yttD9esV+MIZtR1tQbgKzyxdbebSZ2gM0ig/cDoya16brBdcZNXDkmWj/fKFvgiAx7IiehH1UM/dWQUzDZnaHB6Kxiu0Hy2FcxBhPeUetCj56JyinOl7OhsoYancP4AbgezNhzbo1193IcTwpwZxNdzeZ6vH3oD7YdngTRbn8rN2kvc6smimjZDWZcTDIBsyAiJ1jw9V0Fm+uPCdYxW6RtK5PU2H+TokaZ9l1viPkA1CqMp23KjHSTGnmFAb9RpxLdeLx X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Feb 2026 15:55:16.1948 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 38350f2e-c272-432a-4b9e-08de61aa4aea 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: DS3PEPF000099D8.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8343 From: Alejandro Lucero Current code is expecting Type3 or CXL_DECODER_HOSTONLYMEM devices only. Support for Type2 implies region type needs to be based on the endpoint type HDM-D[B] instead. Signed-off-by: Alejandro Lucero Reviewed-by: Zhi Wang Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Reviewed-by: Ben Cheatham Reviewed-by: Alison Schofield Reviewed-by: Davidlohr Bueso --- drivers/cxl/core/region.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index bdefd088f5f1..f53b2e9fd9e6 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -2833,7 +2833,8 @@ static ssize_t create_ram_region_show(struct device *dev, } static struct cxl_region *__create_region(struct cxl_root_decoder *cxlrd, - enum cxl_partition_mode mode, int id) + enum cxl_partition_mode mode, int id, + enum cxl_decoder_type target_type) { int rc; @@ -2855,7 +2856,7 @@ static struct cxl_region *__create_region(struct cxl_root_decoder *cxlrd, return ERR_PTR(-EBUSY); } - return devm_cxl_add_region(cxlrd, id, mode, CXL_DECODER_HOSTONLYMEM); + return devm_cxl_add_region(cxlrd, id, mode, target_type); } static ssize_t create_region_store(struct device *dev, const char *buf, @@ -2869,7 +2870,7 @@ static ssize_t create_region_store(struct device *dev, const char *buf, if (rc != 1) return -EINVAL; - cxlr = __create_region(cxlrd, mode, id); + cxlr = __create_region(cxlrd, mode, id, CXL_DECODER_HOSTONLYMEM); if (IS_ERR(cxlr)) return PTR_ERR(cxlr); @@ -4036,7 +4037,8 @@ static struct cxl_region *construct_region(struct cxl_root_decoder *cxlrd, do { cxlr = __create_region(cxlrd, cxlds->part[part].mode, - atomic_read(&cxlrd->region_id)); + atomic_read(&cxlrd->region_id), + cxled->cxld.target_type); } while (IS_ERR(cxlr) && PTR_ERR(cxlr) == -EBUSY); if (IS_ERR(cxlr)) { -- 2.34.1