drm/amd/display: dcc always on for bw calculations on raven (30cdbfaa) · Commits · 戴 / test

drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c

+18 −1

Original line number	Diff line number	Diff line
		@@ -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;