Commit 675634c5 authored by Yongqiang Sun's avatar Yongqiang Sun Committed by Alex Deucher
Browse files

drm/amd/display: Only update output transfer function for full type. 



dcn10_translate_regamma_to_hw_format costs 750us to run, it cannot be
called within isr, check update flag before calling, only do it for
full update.

Signed-off-by: default avatarYongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent dce46c53

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

+16 −7
Original line number Diff line number Diff line
@@ -1211,9 +1211,17 @@ dcn10_set_output_transfer_func(struct pipe_ctx *pipe_ctx, 
	    stream->out_transfer_func->type == TF_TYPE_PREDEFINED &&

	    stream->out_transfer_func->tf == TRANSFER_FUNCTION_SRGB)

		dpp->funcs->dpp_program_regamma_pwl(dpp, NULL, OPP_REGAMMA_SRGB);

	else if (dcn10_translate_regamma_to_hw_format(stream->out_transfer_func, &dpp->regamma_params))

		dpp->funcs->dpp_program_regamma_pwl(dpp, &dpp->regamma_params, OPP_REGAMMA_USER);

	else



	/* dcn10_translate_regamma_to_hw_format takes 750us, only do it when full

	 * update.

	 */

	else if (dcn10_translate_regamma_to_hw_format(

			stream->out_transfer_func,

			&dpp->regamma_params)) {

		dpp->funcs->dpp_program_regamma_pwl(

				dpp,

				&dpp->regamma_params, OPP_REGAMMA_USER);

	} else

		dpp->funcs->dpp_program_regamma_pwl(dpp, NULL, OPP_REGAMMA_BYPASS);



	return true;
@@ -2076,15 +2084,16 @@ static void program_all_pipe_in_tree( 


		update_dchubp_dpp(dc, pipe_ctx, context);



		if (cur_pipe_ctx->plane_state != pipe_ctx->plane_state) {

		if (cur_pipe_ctx->plane_state != pipe_ctx->plane_state)

			dc->hwss.set_input_transfer_func(pipe_ctx, pipe_ctx->plane_state);

		}



		/*

		/* dcn10_translate_regamma_to_hw_format takes 750us to finish

		 * only do gamma programming for full update.

		 * TODO: This can be further optimized/cleaned up

		 * Always call this for now since it does memcmp inside before

		 * doing heavy calculation and programming

		 */

		if (pipe_ctx->plane_state->update_flags.bits.full_update)

			dc->hwss.set_output_transfer_func(pipe_ctx, pipe_ctx->stream);

	}