From 54a1fef4af129f946eea051c42e25d67a717fb65 Mon Sep 17 00:00:00 2001 From: Dmytro Laktyushkin Date: Wed, 13 Jun 2018 13:58:14 -0400 Subject: [PATCH 4912/5725] drm/amd/display: dcc always on for bw calculations on raven Signed-off-by: Dmytro Laktyushkin Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c index e44b8d3..080f777 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c @@ -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; -- 2.7.4