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| author | Alvin Lee <Alvin.Lee2@amd.com> | 2022-08-15 13:12:42 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-29 17:58:47 -0400 |
| commit | 7857825ba4671d053eb3724c7098bc759bf01a75 (patch) | |
| tree | 62990b0ef168897812c60f7c755cd316c06f29ae /drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | |
| parent | b09c1fff5a9350a65b16af44e74c9f9335d9ef09 (diff) | |
| download | linux-stable-7857825ba4671d053eb3724c7098bc759bf01a75.tar.gz linux-stable-7857825ba4671d053eb3724c7098bc759bf01a75.tar.bz2 linux-stable-7857825ba4671d053eb3724c7098bc759bf01a75.zip | |
drm/amd/display: SubVP missing scaling case
[Description]
For SubVP scaling case we have to combine
the plane scaling and stream scaling.
Use UCLK dummy p-state WM for FCLK WM set C
[Description]
For DCN32/321 program dummy UCLK P-state watermark into FCLK
watermark set C register.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index 32d24365bce1..7b765efe0825 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -634,7 +634,7 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc, &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[cmd_pipe_index]; struct dc_crtc_timing *main_timing = &subvp_pipe->stream->timing; struct dc_crtc_timing *phantom_timing = &subvp_pipe->stream->mall_stream_config.paired_stream->timing; - uint32_t out_num, out_den; + uint32_t out_num_stream, out_den_stream, out_num_plane, out_den_plane, out_num, out_den; pipe_data->mode = SUBVP; pipe_data->pipe_config.subvp_data.pix_clk_100hz = subvp_pipe->stream->timing.pix_clk_100hz; @@ -651,8 +651,14 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc, /* Calculate the scaling factor from the src and dst height. * e.g. If 3840x2160 being downscaled to 1920x1080, the scaling factor is 1/2. * Reduce the fraction 1080/2160 = 1/2 for the "scaling factor" + * + * Make sure to combine stream and plane scaling together. */ - reduce_fraction(subvp_pipe->stream->src.height, subvp_pipe->stream->dst.height, &out_num, &out_den); + reduce_fraction(subvp_pipe->stream->src.height, subvp_pipe->stream->dst.height, + &out_num_stream, &out_den_stream); + reduce_fraction(subvp_pipe->plane_state->src_rect.height, subvp_pipe->plane_state->dst_rect.height, + &out_num_plane, &out_den_plane); + reduce_fraction(out_num_stream * out_num_plane, out_den_stream * out_den_plane, &out_num, &out_den); pipe_data->pipe_config.subvp_data.scale_factor_numerator = out_num; pipe_data->pipe_config.subvp_data.scale_factor_denominator = out_den; |