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| author | Alvin Lee <Alvin.Lee2@amd.com> | 2022-08-04 14:42:47 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-16 18:14:20 -0400 |
| commit | fbe43dcd1aad7dbcee1cffdbe6c3e1d62c85f76a (patch) | |
| tree | 965b7468616495eab96041d2e0494a16dd0b5c4d /drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | |
| parent | 385bf5a856c196d5997ce4111a23df7e1b679c17 (diff) | |
| download | linux-stable-fbe43dcd1aad7dbcee1cffdbe6c3e1d62c85f76a.tar.gz linux-stable-fbe43dcd1aad7dbcee1cffdbe6c3e1d62c85f76a.tar.bz2 linux-stable-fbe43dcd1aad7dbcee1cffdbe6c3e1d62c85f76a.zip | |
drm/amd/display: Include scaling factor for SubVP command
[Description]
For SubVP scaling cases, we must include the scaling
info as part of the cmd. This is required when converting
OTG line to HUBP line for the MALL_START_LINE programming.
Reviewed-by: Jun Lei <Jun.Lei@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 | 11 |
1 files changed, 11 insertions, 0 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 c8059c28ac49..09b304507bad 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -29,6 +29,7 @@ #include "dm_helpers.h" #include "dc_hw_types.h" #include "core_types.h" +#include "../basics/conversion.h" #define CTX dc_dmub_srv->ctx #define DC_LOGGER CTX->logger @@ -600,6 +601,7 @@ 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; pipe_data->mode = SUBVP; pipe_data->pipe_config.subvp_data.pix_clk_100hz = subvp_pipe->stream->timing.pix_clk_100hz; @@ -613,6 +615,15 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc, pipe_data->pipe_config.subvp_data.main_pipe_index = subvp_pipe->pipe_idx; pipe_data->pipe_config.subvp_data.is_drr = subvp_pipe->stream->ignore_msa_timing_param; + /* 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" + */ + reduce_fraction(subvp_pipe->stream->src.height, subvp_pipe->stream->dst.height, &out_num, &out_den); + // TODO: Uncomment below lines once DMCUB include headers are promoted + //pipe_data->pipe_config.subvp_data.scale_factor_numerator = out_num; + //pipe_data->pipe_config.subvp_data.scale_factor_denominator = out_den; + // Prefetch lines is equal to VACTIVE + BP + VSYNC pipe_data->pipe_config.subvp_data.prefetch_lines = phantom_timing->v_total - phantom_timing->v_front_porch; |