From e49c5e127918fc9756180f244c1f4814b8dfaa1e Mon Sep 17 00:00:00 2001 From: Alvin Lee Date: Fri, 11 Nov 2022 12:14:34 -0500 Subject: [PATCH] drm/amd/display: Add debug options for increasing phantom lines [Description] - Add debug option for increasing number of phantom lines Reviewed-by: Nevenko Stupar Reviewed-by: Jun Lei Acked-by: Brian Chang Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 1066bb8b0bb41..35995507b35fa 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -852,6 +852,7 @@ struct dc_debug_options { unsigned int force_subvp_num_ways; unsigned int force_mall_ss_num_ways; bool alloc_extra_way_for_cursor; + uint32_t subvp_extra_lines; bool force_usr_allow; /* uses value at boot and disables switch */ bool disable_dtb_ref_clk_switch; diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c index 9bc5462736cd8..7af98d64d5500 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c @@ -585,6 +585,9 @@ void dcn32_set_phantom_stream_timing(struct dc *dc, num_dpp = vba->NoOfDPP[vba->VoltageLevel][vba->maxMpcComb][vba->pipe_plane[pipe_idx]]; phantom_vactive += num_dpp > 1 ? vba->meta_row_height[vba->pipe_plane[pipe_idx]] : 0; + /* dc->debug.subvp_extra_lines 0 by default*/ + phantom_vactive += dc->debug.subvp_extra_lines; + // For backporch of phantom pipe, use vstartup of the main pipe phantom_bp = get_vstartup(&context->bw_ctx.dml, pipes, pipe_cnt, pipe_idx); -- 2.30.2