From 486cc0ee550e619660926e162f68e96a64702216 Mon Sep 17 00:00:00 2001 From: Nikola Cornij Date: Thu, 12 Sep 2019 17:15:16 -0400 Subject: [PATCH] drm/amd/display: Add output bitrate to DML calculations [why] Output bitrate was mistakenly left out, causing corruption on some DSC low resolution (such as 800x600) modes. Signed-off-by: Nikola Cornij Reviewed-by: Dmytro Laktyushkin Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 5 ++++- drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h | 2 +- drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c | 2 ++ 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 1ee9356..7ace3b2 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -1894,7 +1894,7 @@ int dcn20_populate_dml_pipes_from_context( break; case PIXEL_ENCODING_YCBCR420: pipes[pipe_cnt].dout.output_format = dm_420; - pipes[pipe_cnt].dout.output_bpp = (output_bpc * 3) / 2; + pipes[pipe_cnt].dout.output_bpp = (output_bpc * 3.0) / 2; break; case PIXEL_ENCODING_YCBCR422: if (true) /* todo */ @@ -1908,6 +1908,9 @@ int dcn20_populate_dml_pipes_from_context( pipes[pipe_cnt].dout.output_bpp = output_bpc * 3; } + if (res_ctx->pipe_ctx[i].stream->timing.flags.DSC) + pipes[pipe_cnt].dout.output_bpp = res_ctx->pipe_ctx[i].stream->timing.dsc_cfg.bits_per_pixel / 16.0; + /* todo: default max for now, until there is logic reflecting this in dc*/ pipes[pipe_cnt].dout.output_bpc = 12; /* diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h index f4c1ef9..83f84cdd 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h +++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h @@ -269,7 +269,7 @@ struct writeback_st { struct _vcs_dpi_display_output_params_st { int dp_lanes; - int output_bpp; + double output_bpp; int dsc_enable; int wb_enable; int num_active_wb; diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c index 65cf4ed..362dc6e 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c +++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c @@ -434,6 +434,8 @@ static void fetch_pipe_params(struct display_mode_lib *mode_lib) dst->odm_combine; mode_lib->vba.OutputFormat[mode_lib->vba.NumberOfActivePlanes] = (enum output_format_class) (dout->output_format); + mode_lib->vba.OutputBpp[mode_lib->vba.NumberOfActivePlanes] = + dout->output_bpp; mode_lib->vba.Output[mode_lib->vba.NumberOfActivePlanes] = (enum output_encoder_class) (dout->output_type); -- 2.7.4