drm/amd/display: Undo ODM combine

Undo ODM Combine regression causing causing pipe allocation issues.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Martin Leung <Martin.Leung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -734,10 +734,6 @@ static void calculate_split_count_and_index(struct pipe_ctx *pipe_ctx, int *spli
 			(*split_idx)++;
 			split_pipe = split_pipe->top_pipe;
 		}
-
-		/* MPO window on right side of ODM split */
-		if (split_pipe && split_pipe->prev_odm_pipe && !pipe_ctx->prev_odm_pipe)
-			(*split_idx)++;
 	} else {
 		/*Get odm split index*/
 		struct pipe_ctx *split_pipe = pipe_ctx->prev_odm_pipe;
@@ -784,11 +780,7 @@ static void calculate_recout(struct pipe_ctx *pipe_ctx)
 	/*
 	 * Only the leftmost ODM pipe should be offset by a nonzero distance
 	 */
-	if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->prev_odm_pipe && !pipe_ctx->prev_odm_pipe) {
-		/* MPO window on right side of ODM split */
-		data->recout.x = stream->dst.x + (surf_clip.x - stream->dst.width/2) *
-				stream->dst.width / stream->src.width;
-	} else if (!pipe_ctx->prev_odm_pipe || split_idx == split_count) {
+	if (!pipe_ctx->prev_odm_pipe || split_idx == split_count) {
 		data->recout.x = stream->dst.x;
 		if (stream->src.x < surf_clip.x)
 			data->recout.x += (surf_clip.x - stream->src.x) * stream->dst.width
@@ -986,8 +978,6 @@ static void calculate_inits_and_viewports(struct pipe_ctx *pipe_ctx)
 			* stream->dst.height / stream->src.height;
 	if (pipe_ctx->prev_odm_pipe && split_idx)
 		ro_lb = data->h_active * split_idx - recout_full_x;
-	else if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->prev_odm_pipe)
-		ro_lb = data->h_active * split_idx - recout_full_x + data->recout.x;
 	else
 		ro_lb = data->recout.x - recout_full_x;
 	ro_tb = data->recout.y - recout_full_y;
@@ -1086,9 +1076,6 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 		timing->v_border_top + timing->v_border_bottom;
 	if (pipe_ctx->next_odm_pipe || pipe_ctx->prev_odm_pipe)
 		pipe_ctx->plane_res.scl_data.h_active /= get_num_odm_splits(pipe_ctx) + 1;
-	/* ODM + windows MPO, where window is on either right or left ODM half */
-	else if (pipe_ctx->top_pipe && (pipe_ctx->top_pipe->next_odm_pipe || pipe_ctx->top_pipe->prev_odm_pipe))
-		pipe_ctx->plane_res.scl_data.h_active /= get_num_odm_splits(pipe_ctx->top_pipe) + 1;
 
 	/* depends on h_active */
 	calculate_recout(pipe_ctx);
@@ -1097,6 +1084,11 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 	/* depends on scaling ratios and recout, does not calculate offset yet */
 	calculate_viewport_size(pipe_ctx);
 
+	/* Stopgap for validation of ODM + MPO on one side of screen case */
+	if (pipe_ctx->plane_res.scl_data.viewport.height < 1 ||
+			pipe_ctx->plane_res.scl_data.viewport.width < 1)
+		return false;
+
 	/*
 	 * LB calculations depend on vp size, h/v_active and scaling ratios
 	 * Setting line buffer pixel depth to 24bpp yields banding
@@ -1445,31 +1437,14 @@ bool dc_add_plane_to_context(
 		if (head_pipe != free_pipe) {
 			tail_pipe = resource_get_tail_pipe(&context->res_ctx, head_pipe);
 			ASSERT(tail_pipe);
-
-			/* ODM + window MPO, where MPO window is on right half only */
-			if (free_pipe->plane_state &&
-					(free_pipe->plane_state->clip_rect.x >= free_pipe->stream->src.width/2) &&
-					tail_pipe->next_odm_pipe) {
-				free_pipe->stream_res.tg = tail_pipe->next_odm_pipe->stream_res.tg;
-				free_pipe->stream_res.abm = tail_pipe->next_odm_pipe->stream_res.abm;
-				free_pipe->stream_res.opp = tail_pipe->next_odm_pipe->stream_res.opp;
-				free_pipe->stream_res.stream_enc = tail_pipe->next_odm_pipe->stream_res.stream_enc;
-				free_pipe->stream_res.audio = tail_pipe->next_odm_pipe->stream_res.audio;
-				free_pipe->clock_source = tail_pipe->next_odm_pipe->clock_source;
-
-				free_pipe->top_pipe = tail_pipe->next_odm_pipe;
-				tail_pipe->next_odm_pipe->bottom_pipe = free_pipe;
-			} else {
 			free_pipe->stream_res.tg = tail_pipe->stream_res.tg;
 			free_pipe->stream_res.abm = tail_pipe->stream_res.abm;
 			free_pipe->stream_res.opp = tail_pipe->stream_res.opp;
 			free_pipe->stream_res.stream_enc = tail_pipe->stream_res.stream_enc;
 			free_pipe->stream_res.audio = tail_pipe->stream_res.audio;
 			free_pipe->clock_source = tail_pipe->clock_source;
-
 			free_pipe->top_pipe = tail_pipe;
 			tail_pipe->bottom_pipe = free_pipe;
-
 			if (!free_pipe->next_odm_pipe && tail_pipe->next_odm_pipe && tail_pipe->next_odm_pipe->bottom_pipe) {
 				free_pipe->next_odm_pipe = tail_pipe->next_odm_pipe->bottom_pipe;
 				tail_pipe->next_odm_pipe->bottom_pipe->prev_odm_pipe = free_pipe;
@@ -1479,20 +1454,6 @@ bool dc_add_plane_to_context(
 				tail_pipe->prev_odm_pipe->bottom_pipe->next_odm_pipe = free_pipe;
 			}
 		}
-		}
-
-		/* ODM + window MPO, where MPO window is on left half only */
-		if (free_pipe->plane_state &&
-				(free_pipe->plane_state->clip_rect.x + free_pipe->plane_state->clip_rect.width <=
-				free_pipe->stream->src.x + free_pipe->stream->src.width/2)) {
-			break;
-		}
-		/* ODM + window MPO, where MPO window is on right half only */
-		if (free_pipe->plane_state &&
-				(free_pipe->plane_state->clip_rect.x >= free_pipe->stream->src.width/2)) {
-			break;
-		}
-
 		head_pipe = head_pipe->next_odm_pipe;
 	}
 	/* assign new surfaces*/

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c

@@ -1761,17 +1761,6 @@ static bool dcn30_split_stream_for_mpc_or_odm(
 	int pipe_idx = sec_pipe->pipe_idx;
 	const struct resource_pool *pool = dc->res_pool;
 
-	if (pri_pipe->plane_state) {
-		/* ODM + window MPO, where MPO window is on left half only */
-		if (pri_pipe->plane_state->clip_rect.x + pri_pipe->plane_state->clip_rect.width <=
-				pri_pipe->stream->src.x + pri_pipe->stream->src.width/2)
-			return true;
-
-		/* ODM + window MPO, where MPO window is on right half only */
-		if (pri_pipe->plane_state->clip_rect.x >= pri_pipe->stream->src.width/2)
-			return true;
-	}
-
 	*sec_pipe = *pri_pipe;
 
 	sec_pipe->pipe_idx = pipe_idx;