drm/amd/display: remove guaranteed viewports limitation for odm

[why]
With the more generic hw minimal state transition sequence,
this limitation has been overcome.
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -3948,40 +3948,6 @@ static bool could_mpcc_tree_change_for_active_pipes(struct dc *dc,
 				*is_plane_addition = true;
 			}
 		}
-		if (dc->config.enable_windowed_mpo_odm) {
-			const struct rect *guaranteed_viewport = &stream->src;
-			const struct rect *surface_src, *surface_dst;
-			bool are_cur_planes_guaranteed = true;
-			bool are_new_planes_guaranteed = true;
-
-			for (i = 0; i < cur_stream_status->plane_count; i++) {
-				surface_src = &cur_stream_status->plane_states[i]->src_rect;
-				surface_dst = &cur_stream_status->plane_states[i]->dst_rect;
-				if ((surface_src->height > surface_dst->height && surface_src->height > guaranteed_viewport->height) ||
-						(surface_src->width > surface_dst->width && surface_src->width > guaranteed_viewport->width))
-					are_cur_planes_guaranteed = false;
-			}
-
-			for (i = 0; i < surface_count; i++) {
-				if (srf_updates[i].scaling_info) {
-					surface_src = &srf_updates[i].scaling_info->src_rect;
-					surface_dst = &srf_updates[i].scaling_info->dst_rect;
-				} else {
-					surface_src = &srf_updates[i].surface->src_rect;
-					surface_dst = &srf_updates[i].surface->dst_rect;
-				}
-				if ((surface_src->height > surface_dst->height && surface_src->height > guaranteed_viewport->height) ||
-						(surface_src->width > surface_dst->width && surface_src->width > guaranteed_viewport->width))
-					are_new_planes_guaranteed = false;
-			}
-
-			if (are_cur_planes_guaranteed && !are_new_planes_guaranteed) {
-				force_minimal_pipe_splitting = true;
-				*is_plane_addition = true;
-			} else if (!are_cur_planes_guaranteed && are_new_planes_guaranteed) {
-				force_minimal_pipe_splitting = true;
-			}
-		}
 	}
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {

drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c

@@ -1267,8 +1267,6 @@ static bool should_allow_odm_power_optimization(struct dc *dc,
 {
 	struct dc_stream_state *stream = context->streams[0];
 	struct pipe_slice_table slice_table;
-	struct dc_plane_state *plane;
-	struct rect guaranteed_viewport;
 	int i;
 
 	/*
@@ -1333,31 +1331,6 @@ static bool should_allow_odm_power_optimization(struct dc *dc,
 		for (i = 0; i < slice_table.odm_combine_count; i++)
 			if (slice_table.odm_combines[i].slice_count > 1)
 				return false;
-
-		/* up to here we know that a plane with viewport equal to stream
-		 * src can be validated with single DPP pipe. Therefore any
-		 * planes with smaller or equal viewport is guaranteed to work
-		 * regardless of its position and scaling ratio. Also we know
-		 * any plane without downscale ratio greater than 1 should also
-		 * work. Up until DCN3x we still have software limitation that
-		 * doesn't implement a smooth transition between ODM combine and
-		 * MPC combine during plane resizing when we are crossing ODM
-		 * capability boundary. So we are adding this guaranteed
-		 * viewport condition to limit ODM power optimization support
-		 * for only the planes within the guaranteed viewport size. Such
-		 * planes can be supported with ODM power optimization without
-		 * ever the need to transition to MPC combine in any scaling
-		 * ratios and positions. Therefore we cover the software
-		 * limitation of this transition sequence.
-		 */
-		guaranteed_viewport = stream->src;
-		for (i = 0; i < context->stream_status[0].plane_count; i++) {
-			plane = context->stream_status[0].plane_states[i];
-
-			if ((plane->src_rect.height > plane->dst_rect.height && plane->src_rect.height > guaranteed_viewport.height) ||
-					(plane->src_rect.width > plane->dst_rect.width && plane->src_rect.width > guaranteed_viewport.width))
-				return false;
-		}
 	} else {
 		/*
 		 * the new ODM power optimization feature reduces software