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PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230016)(4636009)(346002)(136003)(396003)(39860400002)(376002)(36840700001)(40470700004)(46966006)(36756003)(8676002)(82310400005)(4326008)(70206006)(70586007)(40460700003)(6916009)(54906003)(6666004)(478600001)(8936002)(316002)(5660300002)(2616005)(26005)(336012)(1076003)(186003)(426003)(2906002)(40480700001)(41300700001)(83380400001)(7696005)(36860700001)(356005)(82740400003)(81166007)(86362001)(47076005)(43062005)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Aug 2022 02:51:04.8992 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1461cfb1-b1e3-446b-61bf-08da87d6fc2d 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT025.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6720 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: , Cc: stylon.wang@amd.com, Brian Chang , Sunpeng.Li@amd.com, Harry.Wentland@amd.com, qingqing.zhuo@amd.com, George Shen , Rodrigo.Siqueira@amd.com, roman.li@amd.com, solomon.chiu@amd.com, Aurabindo.Pillai@amd.com, Michael Strauss , wayne.lin@amd.com, Bhawanpreet.Lakha@amd.com, agustin.gutierrez@amd.com, pavle.kotarac@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Michael Strauss [WHY] Useful for external teams debugging LTTPR issues Reviewed-by: George Shen Acked-by: Brian Chang Signed-off-by: Michael Strauss --- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 4 ++++ drivers/gpu/drm/amd/display/dc/dc.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 8617de559174..7e97265b76e8 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -5032,6 +5032,10 @@ static void determine_lttpr_mode(struct dc_link *link) bool vbios_lttpr_enable = link->dc->caps.vbios_lttpr_enable; bool vbios_lttpr_interop = link->dc->caps.vbios_lttpr_aware; + if (link->ctx->dc->debug.lttpr_mode_override != 0) { + link->lttpr_mode = link->ctx->dc->debug.lttpr_mode_override; + return; + } if ((link->dc->config.allow_lttpr_non_transparent_mode.bits.DP2_0 && link->dpcd_caps.channel_coding_cap.bits.DP_128b_132b_SUPPORTED)) { diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 2362d5ee2401..473e6a0c3310 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -846,6 +846,7 @@ struct dc_debug_options { bool exit_idle_opt_for_cursor_updates; bool enable_single_display_2to1_odm_policy; bool enable_dp_dig_pixel_rate_div_policy; + enum lttpr_mode lttpr_mode_override; }; struct gpu_info_soc_bounding_box_v1_0; -- 2.25.1