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drm/amd/display: dcc always on for bw calculations on raven

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Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2018-06-13 13:58:14 -04:00 committed by Alex Deucher
parent 4b99affbb3
commit 30cdbfaa6a
1 changed files with 18 additions and 1 deletions
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19
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
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@ -250,7 +250,24 @@ static void pipe_ctx_to_e2e_pipe_params (
else if (pipe->bottom_pipe != NULL && pipe->bottom_pipe->plane_state == pipe->plane_state)
input->src.is_hsplit = true;
input->src.dcc = pipe->plane_state->dcc.enable;
if (pipe->plane_res.dpp->ctx->dc->debug.optimized_watermark) {
/*
* this method requires us to always re-calculate watermark when dcc change
* between flip.
*/
input->src.dcc = pipe->plane_state->dcc.enable ? 1 : 0;
} else {
/*
* allow us to disable dcc on the fly without re-calculating WM
*
* extra overhead for DCC is quite small. for 1080p WM without
* DCC is only 0.417us lower (urgent goes from 6.979us to 6.562us)
*/
unsigned int bpe;
input->src.dcc = pipe->plane_res.dpp->ctx->dc->res_pool->hubbub->funcs->
dcc_support_pixel_format(pipe->plane_state->format, &bpe) ? 1 : 0;
}
input->src.dcc_rate = 1;
input->src.meta_pitch = pipe->plane_state->dcc.grph.meta_pitch;
input->src.source_scan = dm_horz;