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Tue, 11 Aug 2026 10:48:47 -0500 From: James Lin To: CC: Harry Wentland , Leo Li , Aurabindo Pillai , Roman Li , Wayne Lin , Tom Chung , "Fangzhi Zuo" , Dan Wheeler , Ray Wu , Ivan Lipski , Alex Hung , James Lin , Chenyu Chen , Wenjing Liu , Alvin Lee , James Lin Subject: [PATCH 05/24] drm/amd/display: Add utm_support capability flag Date: Tue, 11 Aug 2026 05:28:39 +0800 Message-ID: <20260810213010.1703162-6-PingLei.Lin@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260810213010.1703162-1-PingLei.Lin@amd.com> References: <20260810213010.1703162-1-PingLei.Lin@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000013E:EE_|CY8PR12MB8314:EE_ X-MS-Office365-Filtering-Correlation-Id: 14a4ec0c-2187-47a0-cbf0-08def7c00d5f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|23010399003|82310400026|1800799024|376014|36860700016|6133799003|10067099003|11063799006|56012099006|18002099003|22082099003; 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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: RcolFH/4OjUYHK61osQDKbP1qOQA+D6e5mQCDDftz58KQ7aXNEjd3i6CtbQjiY/iLNjPH4xzj4RQmriBCl6WQpaHOhGKuTBTeLY5OOGLXRGX0mbiegbrxy4RAryOWEodqm14yDIu9L8m7c64NRx9ijtFUOoyj2NwuxLnG0EAwtY8dE/fyiqbw+w92Spm0yD2r3DfA90z8lq4pdYWN8+/MLLoorgAyNMsEcOtYyTkfVrvo8mJhXVwllRZS+OoIzKfAK08v6MoAY8muFOqr6+71dQRWn2TmO+DCarjmWNigUDST+rVX4RrDU8cisLr46h03Qv6GtodOaQF93BS0zNwnUo+vDw9Rb/W+Z4NAthdhFOxiSztwDesrkjod5KvqkujH9h3P34KGKOF9P7W9RyQhVrDmFCFg7ODT9bB1Bztu6RWNoWdtw9w3//cFlQ6kWds X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Aug 2026 15:48:56.2821 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 14a4ec0c-2187-47a0-cbf0-08def7c00d5f 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: CH2PEPF0000013E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB8314 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Wenjing Liu [Why] Expose whether the ASIC supports Universal Traffic Management so upper layers can query the capability instead of assuming support. [How] Add a new bool capability field to dc_caps, defaulting to false, and set it to true during DCN6 resource construction. Reviewed-by: Alvin Lee Signed-off-by: Wenjing Liu Signed-off-by: James Lin --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index c23299d3f36a..edd6a113cfee 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -432,6 +432,7 @@ struct dc_caps { uint8_t num_of_dpias_per_host_router; /* limit of the ODM only, could be limited by other factors (like pipe count)*/ uint8_t max_odm_combine_factor; + bool utm_support; }; struct dc_bug_wa { diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c index 2dac5f7486d9..7171b237c427 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c @@ -2037,6 +2037,7 @@ static bool dcn60_resource_construct( dc->caps.edp_dsc_support = true; dc->caps.extended_aux_timeout_support = true; dc->caps.dmcub_support = true; + dc->caps.utm_support = true; dc->caps.max_v_total = (1 << 15) - 1; if (ASICREV_IS_GC_12_0_1_A0(dc->ctx->asic_id.hw_internal_rev)) -- 2.43.0