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Tue, 10 Nov 2026 19:42:33 -0600 From: Wayne 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 , Dillon Varone Subject: [PATCH 35/74] drm/amd/display: Enable DRR stutter constraint relaxation on DCN42 Date: Wed, 11 Nov 2026 09:28:41 +0800 Message-ID: <20261111014100.3596072-36-Wayne.Lin@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261111014100.3596072-1-Wayne.Lin@amd.com> References: <20261111014100.3596072-1-Wayne.Lin@amd.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF0000A801:EE_|DS0PR12MB8071:EE_ X-MS-Office365-Filtering-Correlation-Id: d46a3108-7c55-44f9-1568-08df3f951098 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|376014|23010399003|82310400026|36860700016|10067099003|11063799006|56012099006|261021121427099003|261022105027099003|261022075727099003|261009223027099003|261102123227099003|261026140227099003|261028144727099003|18002099003|22082099003|6133799003; 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Pass the option into DML21 initialization and enable it for DCN42. Signed-off-by: Dillon Varone Signed-off-by: Wayne Lin --- .../dc/dml2_wrapper/dml21_wrapper/dml21_translation_helper.c | 3 +++ drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml2_wrapper.h | 1 + drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml21_wrapper/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml21_wrapper/dml21_translation_helper.c index 6a9f822b2b33..dc65750a7fe3 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml21_wrapper/dml21_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml21_wrapper/dml21_translation_helper.c @@ -40,6 +40,9 @@ static void dml21_populate_pmo_options(struct dml2_pmo_options *pmo_options, pmo_options->force_mandatory_uclk_pstate_support = config->pmo.force_mandatory_uclk_pstate_support; pmo_options->force_optional_uclk_pstate_support = in_dc->debug.force_optional_uclk_pstate_support; + + // stutter + pmo_options->relax_stutter_constraint_for_drr = config->pmo.relax_stutter_constraint_for_drr; } static enum dml2_project_id dml21_dcn_revision_to_dml2_project_id(const struct dc *in_dc) diff --git a/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml2_wrapper.h b/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml2_wrapper.h index 68ae013b026e..c1eb8cdfc9a4 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml2_wrapper.h +++ b/drivers/gpu/drm/amd/display/dc/dml2_wrapper/dml2_wrapper.h @@ -242,6 +242,7 @@ struct dml2_configuration_options { struct { bool force_mandatory_uclk_pstate_support; bool force_pstate_method_enable; + bool relax_stutter_constraint_for_drr; enum dml2_force_pstate_methods force_pstate_method_values[MAX_PIPES]; } pmo; bool map_dc_pipes_with_callbacks; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c index c01614005281..a6fd956d12e9 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c @@ -2468,6 +2468,8 @@ static bool dcn42_resource_construct( dc->dml2_options.pmo.force_mandatory_uclk_pstate_support = true; + dc->dml2_options.pmo.relax_stutter_constraint_for_drr = true; + /* SPL */ dc->caps.scl_caps.sharpener_support = true; -- 2.43.0