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Tue, 10 Nov 2026 19:41:05 -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 , Sreeja Golui , Dillon Varone Subject: [PATCH 12/74] drm/amd/display: Include Ramless Idle in stutter relaxation Date: Wed, 11 Nov 2026 09:28:18 +0800 Message-ID: <20261111014100.3596072-13-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: SJ1PEPF00002318:EE_|DS0PR12MB7559:EE_ X-MS-Office365-Filtering-Correlation-Id: 8b20efaf-9f8e-46fc-08ee-08df3f94e0de X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|82310400026|1800799024|36860700016|23010399003|18002099003|22082099003|10067099003|261026140227099003|11063799006|56012099006|261021121427099003|261102123227099003|261022105027099003|261021123027099003|261009223027099003|261028144727099003; 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How: Add a timing flag for Ramless Idle static-screen mode and treat it like fixed DRR when deciding whether to relax the stutter factor. Cc: Dillon Varone Signed-off-by: Sreeja Golui Signed-off-by: Wayne Lin --- .../display/dc/dml2_0/dml21/inc/dml_top_display_cfg_types.h | 1 + .../dc/dml2_0/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/inc/dml_top_display_cfg_types.h b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/inc/dml_top_display_cfg_types.h index 27ffe7ed11c7..816443c9427b 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/inc/dml_top_display_cfg_types.h +++ b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/inc/dml_top_display_cfg_types.h @@ -289,6 +289,7 @@ struct dml2_timing_cfg { bool disallowed; bool drr_active_variable; bool drr_active_fixed; + bool drr_active_idle_static_screen; } drr_config; unsigned long vblank_nom; }; diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c index 3584dbe4c9fb..62ac29dfe9be 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c +++ b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c @@ -2361,9 +2361,10 @@ static bool should_relax_stutter_constraint_for_stream(const struct dml2_pmo_ini unsigned int stream_index) { // relax the stutter constraint when: - // 1. Stream has DRR fixed enabled (assumed blank is extended sufficiently beyond nominal) + // 1. Stream has fixed DRR or Ramless Idle static screen enabled (extended blank) // 2. The option to relax stutter constraint is enabled in PMO options. - return in_out->base_display_config->display_config.stream_descriptors[stream_index].timing.drr_config.drr_active_fixed && + return (in_out->base_display_config->display_config.stream_descriptors[stream_index].timing.drr_config.drr_active_fixed || + in_out->base_display_config->display_config.stream_descriptors[stream_index].timing.drr_config.drr_active_idle_static_screen) && in_out->instance->options->relax_stutter_constraint_for_drr; } -- 2.43.0