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From 926638ed62a64e7537cc42787796af8861cd4708 Mon Sep 17 00:00:00 2001
From: Nikola Cornij <nikola.cornij@amd.com>
Date: Thu, 12 Sep 2019 17:15:16 -0400
Subject: [PATCH 4060/4256] 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 <nikola.cornij@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
---
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 2f1dc0277e48..5deb8deece0c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1923,7 +1923,7 @@ 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 */
@@ -1937,6 +1937,9 @@ 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 f4c1ef9046bf..83f84cdd4055 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 65cf4edddaff..362dc6ea98ae 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);
--
2.17.1
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