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Mon, 9 Dec 2024 12:54:53 -0600 From: To: , , , , , , , , , CC: Alejandro Lucero Subject: [PATCH v7 11/28] cxl: add function for setting media ready by a driver Date: Mon, 9 Dec 2024 18:54:12 +0000 Message-ID: <20241209185429.54054-12-alejandro.lucero-palau@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20241209185429.54054-1-alejandro.lucero-palau@amd.com> References: <20241209185429.54054-1-alejandro.lucero-palau@amd.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB4D:EE_|DS7PR12MB5741:EE_ X-MS-Office365-Filtering-Correlation-Id: 53d1565b-5e2c-4374-208e-08dd1882f890 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|1800799024|36860700013|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(82310400026)(1800799024)(36860700013)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Dec 2024 18:54:55.0863 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 53d1565b-5e2c-4374-208e-08dd1882f890 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=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB4D.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5741 From: Alejandro Lucero A Type-2 driver may be required to set the memory availability explicitly, for example because there is not a mailbox for doing so through a specific command. Add a function to the exported CXL API for accelerator drivers having this possibility. Signed-off-by: Alejandro Lucero Reviewed-by: Dave Jiang Reviewed-by: Ben Cheatham --- drivers/cxl/core/memdev.c | 6 ++++++ include/cxl/cxl.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c index c414b0fbbead..82c354b1375e 100644 --- a/drivers/cxl/core/memdev.c +++ b/drivers/cxl/core/memdev.c @@ -789,6 +789,12 @@ int cxl_release_resource(struct cxl_dev_state *cxlds, enum cxl_resource type) } EXPORT_SYMBOL_NS_GPL(cxl_release_resource, "CXL"); +void cxl_set_media_ready(struct cxl_dev_state *cxlds) +{ + cxlds->media_ready = true; +} +EXPORT_SYMBOL_NS_GPL(cxl_set_media_ready, "CXL"); + static int cxl_memdev_release_file(struct inode *inode, struct file *file) { struct cxl_memdev *cxlmd = diff --git a/include/cxl/cxl.h b/include/cxl/cxl.h index 44664c9928a4..473128fdfb22 100644 --- a/include/cxl/cxl.h +++ b/include/cxl/cxl.h @@ -44,4 +44,5 @@ bool cxl_pci_check_caps(struct cxl_dev_state *cxlds, int cxl_pci_accel_setup_regs(struct pci_dev *pdev, struct cxl_dev_state *cxlds); int cxl_request_resource(struct cxl_dev_state *cxlds, enum cxl_resource type); int cxl_release_resource(struct cxl_dev_state *cxlds, enum cxl_resource type); +void cxl_set_media_ready(struct cxl_dev_state *cxlds); #endif