drm/amd/display: Update dchub and dpp as per update flags.

Check update flags and update dchub and dpp as per flags,
reduce reg access from 347 to 200, duration time reduce
to 170us.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1878,47 +1878,10 @@ void build_prescale_params(struct  dc_bias_and_scale *bias_and_scale,
 	}
 }
 
-static void update_dchubp_dpp(
-	struct dc *dc,
-	struct pipe_ctx *pipe_ctx,
-	struct dc_state *context)
+static void update_dpp(struct dpp *dpp, struct dc_plane_state *plane_state)
 {
-	struct dce_hwseq *hws = dc->hwseq;
-	struct hubp *hubp = pipe_ctx->plane_res.hubp;
-	struct dpp *dpp = pipe_ctx->plane_res.dpp;
-	struct dc_plane_state *plane_state = pipe_ctx->plane_state;
-	union plane_size size = plane_state->plane_size;
-	struct mpcc_cfg mpcc_cfg = {0};
-	struct pipe_ctx *top_pipe;
-	bool per_pixel_alpha = plane_state->per_pixel_alpha && pipe_ctx->bottom_pipe;
 	struct dc_bias_and_scale bns_params = {0};
 
-	/* TODO: proper fix once fpga works */
-	/* depends on DML calculation, DPP clock value may change dynamically */
-	enable_dppclk(
-		dc->hwseq,
-		pipe_ctx->pipe_idx,
-		pipe_ctx->stream_res.pix_clk_params.requested_pix_clk,
-		context->bw.dcn.calc_clk.dppclk_div);
-	dc->current_state->bw.dcn.cur_clk.dppclk_div =
-			context->bw.dcn.calc_clk.dppclk_div;
-	context->bw.dcn.cur_clk.dppclk_div = context->bw.dcn.calc_clk.dppclk_div;
-
-	/* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG
-	 * VTG is within DCHUBBUB which is commond block share by each pipe HUBP.
-	 * VTG is 1:1 mapping with OTG. Each pipe HUBP will select which VTG
-	 */
-	REG_UPDATE(DCHUBP_CNTL[pipe_ctx->pipe_idx], HUBP_VTG_SEL, pipe_ctx->stream_res.tg->inst);
-
-	hubp->funcs->hubp_setup(
-		hubp,
-		&pipe_ctx->dlg_regs,
-		&pipe_ctx->ttu_regs,
-		&pipe_ctx->rq_regs,
-		&pipe_ctx->pipe_dlg_param);
-
-	size.grph.surface_size = pipe_ctx->plane_res.scl_data.viewport;
-
 	// program the input csc
 	dpp->funcs->dpp_setup(dpp,
 			plane_state->format,
@@ -1930,6 +1893,17 @@ static void update_dchubp_dpp(
 	build_prescale_params(&bns_params, plane_state);
 	if (dpp->funcs->dpp_program_bias_and_scale)
 		dpp->funcs->dpp_program_bias_and_scale(dpp, &bns_params);
+}
+
+static void update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx)
+{
+	struct mpcc_cfg mpcc_cfg = {0};
+	struct hubp *hubp = pipe_ctx->plane_res.hubp;
+	struct pipe_ctx *top_pipe;
+	bool per_pixel_alpha =
+			pipe_ctx->plane_state->per_pixel_alpha && pipe_ctx->bottom_pipe;
+
+	/* TODO: proper fix once fpga works */
 
 	mpcc_cfg.dpp_id = hubp->inst;
 	mpcc_cfg.opp_id = pipe_ctx->stream_res.opp->inst;
@@ -1952,16 +1926,86 @@ static void update_dchubp_dpp(
 					&& per_pixel_alpha;
 	hubp->mpcc_id = dc->res_pool->mpc->funcs->add(dc->res_pool->mpc, &mpcc_cfg);
 	hubp->opp_id = mpcc_cfg.opp_id;
+}
+
+static void update_scaler(struct pipe_ctx *pipe_ctx)
+{
+	bool per_pixel_alpha =
+			pipe_ctx->plane_state->per_pixel_alpha && pipe_ctx->bottom_pipe;
+
+	/* TODO: proper fix once fpga works */
 
 	pipe_ctx->plane_res.scl_data.lb_params.alpha_en = per_pixel_alpha;
 	pipe_ctx->plane_res.scl_data.lb_params.depth = LB_PIXEL_DEPTH_30BPP;
 	/* scaler configuration */
 	pipe_ctx->plane_res.dpp->funcs->dpp_set_scaler(
 			pipe_ctx->plane_res.dpp, &pipe_ctx->plane_res.scl_data);
+}
 
-	hubp->funcs->mem_program_viewport(hubp,
-			&pipe_ctx->plane_res.scl_data.viewport, &pipe_ctx->plane_res.scl_data.viewport_c);
+static void update_dchubp_dpp(
+	struct dc *dc,
+	struct pipe_ctx *pipe_ctx,
+	struct dc_state *context)
+{
+	struct dce_hwseq *hws = dc->hwseq;
+	struct hubp *hubp = pipe_ctx->plane_res.hubp;
+	struct dpp *dpp = pipe_ctx->plane_res.dpp;
+	struct dc_plane_state *plane_state = pipe_ctx->plane_state;
+	union plane_size size = plane_state->plane_size;
 
+	/* depends on DML calculation, DPP clock value may change dynamically */
+	if (pipe_ctx->plane_state->update_flags.raw != 0) {
+		enable_dppclk(
+			dc->hwseq,
+			pipe_ctx->pipe_idx,
+			pipe_ctx->stream_res.pix_clk_params.requested_pix_clk,
+			context->bw.dcn.calc_clk.dppclk_div);
+		dc->current_state->bw.dcn.cur_clk.dppclk_div =
+				context->bw.dcn.calc_clk.dppclk_div;
+		context->bw.dcn.cur_clk.dppclk_div = context->bw.dcn.calc_clk.dppclk_div;
+	}
+
+	/* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG
+	 * VTG is within DCHUBBUB which is commond block share by each pipe HUBP.
+	 * VTG is 1:1 mapping with OTG. Each pipe HUBP will select which VTG
+	 */
+	if (plane_state->update_flags.bits.full_update) {
+		REG_UPDATE(DCHUBP_CNTL[pipe_ctx->pipe_idx], HUBP_VTG_SEL, pipe_ctx->stream_res.tg->inst);
+
+		hubp->funcs->hubp_setup(
+			hubp,
+			&pipe_ctx->dlg_regs,
+			&pipe_ctx->ttu_regs,
+			&pipe_ctx->rq_regs,
+			&pipe_ctx->pipe_dlg_param);
+	}
+
+	size.grph.surface_size = pipe_ctx->plane_res.scl_data.viewport;
+
+	if (plane_state->update_flags.bits.full_update ||
+		plane_state->update_flags.bits.bpp_change)
+		update_dpp(dpp, plane_state);
+
+	if (plane_state->update_flags.bits.full_update ||
+		plane_state->update_flags.bits.per_pixel_alpha_change)
+		update_mpcc(dc, pipe_ctx);
+
+	if (plane_state->update_flags.bits.full_update ||
+		plane_state->update_flags.bits.per_pixel_alpha_change ||
+		plane_state->update_flags.bits.scaling_change ||
+		plane_state->update_flags.bits.position_change) {
+		update_scaler(pipe_ctx);
+	}
+
+	if (plane_state->update_flags.bits.full_update ||
+		plane_state->update_flags.bits.scaling_change) {
+		hubp->funcs->mem_program_viewport(
+			hubp,
+			&pipe_ctx->plane_res.scl_data.viewport,
+			&pipe_ctx->plane_res.scl_data.viewport_c);
+	}
+
+	if (plane_state->update_flags.bits.full_update) {
 		/*gamut remap*/
 		program_gamut_remap(pipe_ctx);
 
@@ -1969,8 +2013,14 @@ static void update_dchubp_dpp(
 				pipe_ctx,
 				pipe_ctx->stream->output_color_space,
 				pipe_ctx->stream->csc_color_matrix.matrix,
-			mpcc_cfg.opp_id);
+				hubp->opp_id);
+	}
 
+	if (plane_state->update_flags.bits.full_update ||
+		plane_state->update_flags.bits.horizontal_mirror_change ||
+		plane_state->update_flags.bits.rotation_change ||
+		plane_state->update_flags.bits.swizzle_change ||
+		plane_state->update_flags.bits.bpp_change) {
 		hubp->funcs->hubp_program_surface_config(
 			hubp,
 			plane_state->format,
@@ -1979,6 +2029,7 @@ static void update_dchubp_dpp(
 			plane_state->rotation,
 			&plane_state->dcc,
 			plane_state->horizontal_mirror);
+	}
 
 	hubp->power_gated = false;
 
@@ -2019,7 +2070,6 @@ static void program_all_pipe_in_tree(
 		if (pipe_ctx->plane_state->update_flags.bits.full_update)
 			dcn10_enable_plane(dc, pipe_ctx, context);
 
-		if (pipe_ctx->plane_state->update_flags.raw != 0)
 		update_dchubp_dpp(dc, pipe_ctx, context);
 
 		if (cur_pipe_ctx->plane_state != pipe_ctx->plane_state) {
@@ -2181,26 +2231,18 @@ static void dcn10_apply_ctx_for_surface(
 	}
 
 	if (num_planes > 0) {
-		struct dc_stream_state *stream_for_cursor = NULL;
-
 		program_all_pipe_in_tree(dc, top_pipe_to_program, context);
 
-		for (i = 0; i < dc->res_pool->pipe_count; i++) {
-			struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-
-			if (stream == pipe_ctx->stream) {
-				stream_for_cursor = pipe_ctx->stream;
-				break;
-			}
-		}
-
 		/* TODO: this is a hack w/a for switching from mpo to pipe split */
-		if (stream_for_cursor->cursor_attributes.address.quad_part != 0) {
+		if (stream->cursor_attributes.address.quad_part != 0) {
 			struct dc_cursor_position position = { 0 };
 
-			dc_stream_set_cursor_position(stream_for_cursor, &position);
-			dc_stream_set_cursor_attributes(stream_for_cursor,
-				&stream_for_cursor->cursor_attributes);
+			dc_stream_set_cursor_position(
+				(struct dc_stream_state *)stream,
+				&position);
+			dc_stream_set_cursor_attributes(
+				(struct dc_stream_state *)stream,
+				&stream->cursor_attributes);
 		}
 	}
 
@@ -2227,7 +2269,7 @@ static void dcn10_apply_ctx_for_surface(
 		dcn10_verify_allow_pstate_change_high(dc);
 	}
 
-	dm_logger_write(dc->ctx->logger, LOG_BANDWIDTH_CALCS,
+/*	dm_logger_write(dc->ctx->logger, LOG_BANDWIDTH_CALCS,
 			"\n============== Watermark parameters ==============\n"
 			"a.urgent_ns: %d \n"
 			"a.cstate_enter_plus_exit: %d \n"
@@ -2273,6 +2315,7 @@ static void dcn10_apply_ctx_for_surface(
 			context->bw.dcn.watermarks.d.cstate_pstate.pstate_change_ns,
 			context->bw.dcn.watermarks.d.pte_meta_urgent_ns
 			);
+*/
 
 	if (dc->debug.sanity_checks)
 		dcn10_verify_allow_pstate_change_high(dc);