diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 96e3075e6dd0..0c68cd97a461 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -1654,6 +1654,188 @@ static bool dcn32_split_stream_for_mpc_or_odm(
 	return true;
 }
 
+struct pipe_slice_table {
+	struct {
+		struct dc_stream_state *stream;
+		int slice_count;
+	} odm_combines[MAX_STREAMS];
+	int odm_combine_count;
+
+	struct {
+		struct dc_plane_state *plane;
+		int slice_count;
+	} mpc_combines[MAX_SURFACES];
+	int mpc_combine_count;
+};
+
+static void update_slice_table_for_stream(struct pipe_slice_table *table,
+		struct dc_stream_state *stream, int diff)
+{
+	int i;
+
+	for (i = 0; i < table->odm_combine_count; i++) {
+		if (table->odm_combines[i].stream == stream) {
+			table->odm_combines[i].slice_count += diff;
+			break;
+		}
+	}
+
+	if (i == table->odm_combine_count) {
+		table->odm_combine_count++;
+		table->odm_combines[i].stream = stream;
+		table->odm_combines[i].slice_count = diff;
+	}
+}
+
+static void update_slice_table_for_plane(struct pipe_slice_table *table,
+		struct dc_plane_state *plane, int diff)
+{
+	int i;
+
+	for (i = 0; i < table->mpc_combine_count; i++) {
+		if (table->mpc_combines[i].plane == plane) {
+			table->mpc_combines[i].slice_count += diff;
+			break;
+		}
+	}
+
+	if (i == table->mpc_combine_count) {
+		table->mpc_combine_count++;
+		table->mpc_combines[i].plane = plane;
+		table->mpc_combines[i].slice_count = diff;
+	}
+}
+
+static void init_pipe_slice_table_from_context(
+		struct pipe_slice_table *table,
+		struct dc_state *context)
+{
+	int i, j;
+	struct pipe_ctx *otg_master;
+	struct pipe_ctx *dpp_pipes[MAX_PIPES];
+	struct dc_stream_state *stream;
+	int count;
+
+	memset(table, 0, sizeof(*table));
+
+	for (i = 0; i < context->stream_count; i++) {
+		stream = context->streams[i];
+		otg_master = resource_get_otg_master_for_stream(
+				&context->res_ctx, stream);
+		count = resource_get_odm_slice_count(otg_master);
+		update_slice_table_for_stream(table, stream, count);
+
+		count = resource_get_dpp_pipes_for_opp_head(otg_master,
+				&context->res_ctx, dpp_pipes);
+		for (j = 0; j < count; j++)
+			if (dpp_pipes[j]->plane_state)
+				update_slice_table_for_plane(table,
+						dpp_pipes[j]->plane_state, 1);
+	}
+}
+
+static bool update_pipe_slice_table_with_split_flags(
+		struct pipe_slice_table *table,
+		struct dc *dc,
+		struct dc_state *context,
+		struct vba_vars_st *vba,
+		int split[MAX_PIPES],
+		bool merge[MAX_PIPES])
+{
+	/* NOTE: we are deprecating the support for the concept of pipe splitting
+	 * or pipe merging. Instead we append slices to the end and remove
+	 * slices from the end. The following code converts a pipe split or
+	 * merge to an append or remove operation.
+	 *
+	 * For example:
+	 * When split flags describe the following pipe connection transition
+	 *
+	 * from:
+	 *  pipe 0 (split=2) -> pipe 1 (split=2)
+	 * to: (old behavior)
+	 *  pipe 0 -> pipe 2 -> pipe 1 -> pipe 3
+	 *
+	 * the code below actually does:
+	 *  pipe 0 -> pipe 1 -> pipe 2 -> pipe 3
+	 *
+	 * This is the new intended behavior and for future DCNs we will retire
+	 * the old concept completely.
+	 */
+	struct pipe_ctx *pipe;
+	bool odm;
+	int i;
+	bool updated = false;
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		pipe = &context->res_ctx.pipe_ctx[i];
+
+		if (merge[i]) {
+			if (resource_is_pipe_type(pipe, OPP_HEAD))
+				/* merging OPP head means reducing ODM slice
+				 * count by 1
+				 */
+				update_slice_table_for_stream(table, pipe->stream, -1);
+			else if (resource_is_pipe_type(pipe, DPP_PIPE) &&
+					resource_get_odm_slice_index(resource_get_opp_head(pipe)) == 0)
+				/* merging DPP pipe of the first ODM slice means
+				 * reducing MPC slice count by 1
+				 */
+				update_slice_table_for_plane(table, pipe->plane_state, -1);
+			updated = true;
+		}
+
+		if (split[i]) {
+			odm = vba->ODMCombineEnabled[vba->pipe_plane[i]] !=
+					dm_odm_combine_mode_disabled;
+			if (odm && resource_is_pipe_type(pipe, OPP_HEAD))
+				update_slice_table_for_stream(
+						table, pipe->stream, split[i] - 1);
+			else if (!odm && resource_is_pipe_type(pipe, DPP_PIPE))
+				update_slice_table_for_plane(
+						table, pipe->plane_state, split[i] - 1);
+			updated = true;
+		}
+	}
+	return updated;
+}
+
+static void update_pipes_with_slice_table(struct dc *dc, struct dc_state *context,
+		struct pipe_slice_table *table)
+{
+	int i;
+
+	for (i = 0; i < table->odm_combine_count; i++) {
+		resource_update_pipes_for_stream_with_slice_count(context,
+				dc->current_state, dc->res_pool,
+				table->odm_combines[i].stream,
+				table->odm_combines[i].slice_count);
+		/* TODO: move this into the function above */
+		dcn20_build_mapped_resource(dc, context,
+				table->odm_combines[i].stream);
+	}
+
+	for (i = 0; i < table->mpc_combine_count; i++)
+		resource_update_pipes_for_plane_with_slice_count(context,
+				dc->current_state, dc->res_pool,
+				table->mpc_combines[i].plane,
+				table->mpc_combines[i].slice_count);
+}
+
+static bool update_pipes_with_split_flags(struct dc *dc, struct dc_state *context,
+		struct vba_vars_st *vba, int split[MAX_PIPES],
+		bool merge[MAX_PIPES])
+{
+	struct pipe_slice_table slice_table;
+	bool updated;
+
+	init_pipe_slice_table_from_context(&slice_table, context);
+	updated = update_pipe_slice_table_with_split_flags(
+			&slice_table, dc, context, vba,
+			split, merge);
+	update_pipes_with_slice_table(dc, context, &slice_table);
+	return updated;
+}
+
 bool dcn32_internal_validate_bw(struct dc *dc,
 				struct dc_state *context,
 				display_e2e_pipe_params_st *pipes,
@@ -1749,173 +1931,181 @@ bool dcn32_internal_validate_bw(struct dc *dc,
 		pipe_idx++;
 	}
 
-	/* merge pipes if necessary */
-	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
+	if (dc->config.enable_windowed_mpo_odm) {
+		repopulate_pipes = update_pipes_with_split_flags(
+				dc, context, vba, split, merge);
+	} else {
+		/* the code below will be removed once windowed mpo odm is fully
+		 * enabled.
+		 */
+		/* merge pipes if necessary */
+		for (i = 0; i < dc->res_pool->pipe_count; i++) {
+			struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
-		/*skip pipes that don't need merging*/
-		if (!merge[i])
-			continue;
+			/*skip pipes that don't need merging*/
+			if (!merge[i])
+				continue;
 
-		/* if ODM merge we ignore mpc tree, mpo pipes will have their own flags */
-		if (pipe->prev_odm_pipe) {
-			/*split off odm pipe*/
-			pipe->prev_odm_pipe->next_odm_pipe = pipe->next_odm_pipe;
-			if (pipe->next_odm_pipe)
-				pipe->next_odm_pipe->prev_odm_pipe = pipe->prev_odm_pipe;
+			/* if ODM merge we ignore mpc tree, mpo pipes will have their own flags */
+			if (pipe->prev_odm_pipe) {
+				/*split off odm pipe*/
+				pipe->prev_odm_pipe->next_odm_pipe = pipe->next_odm_pipe;
+				if (pipe->next_odm_pipe)
+					pipe->next_odm_pipe->prev_odm_pipe = pipe->prev_odm_pipe;
 
-			/*2:1ODM+MPC Split MPO to Single Pipe + MPC Split MPO*/
-			if (pipe->bottom_pipe) {
-				if (pipe->bottom_pipe->prev_odm_pipe || pipe->bottom_pipe->next_odm_pipe) {
-					/*MPC split rules will handle this case*/
-					pipe->bottom_pipe->top_pipe = NULL;
-				} else {
-					/* when merging an ODM pipes, the bottom MPC pipe must now point to
-					 * the previous ODM pipe and its associated stream assets
-					 */
-					if (pipe->prev_odm_pipe->bottom_pipe) {
-						/* 3 plane MPO*/
-						pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe->bottom_pipe;
-						pipe->prev_odm_pipe->bottom_pipe->bottom_pipe = pipe->bottom_pipe;
+				/*2:1ODM+MPC Split MPO to Single Pipe + MPC Split MPO*/
+				if (pipe->bottom_pipe) {
+					if (pipe->bottom_pipe->prev_odm_pipe || pipe->bottom_pipe->next_odm_pipe) {
+						/*MPC split rules will handle this case*/
+						pipe->bottom_pipe->top_pipe = NULL;
 					} else {
-						/* 2 plane MPO*/
-						pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe;
-						pipe->prev_odm_pipe->bottom_pipe = pipe->bottom_pipe;
+						/* when merging an ODM pipes, the bottom MPC pipe must now point to
+						 * the previous ODM pipe and its associated stream assets
+						 */
+						if (pipe->prev_odm_pipe->bottom_pipe) {
+							/* 3 plane MPO*/
+							pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe->bottom_pipe;
+							pipe->prev_odm_pipe->bottom_pipe->bottom_pipe = pipe->bottom_pipe;
+						} else {
+							/* 2 plane MPO*/
+							pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe;
+							pipe->prev_odm_pipe->bottom_pipe = pipe->bottom_pipe;
+						}
+
+						memcpy(&pipe->bottom_pipe->stream_res, &pipe->bottom_pipe->top_pipe->stream_res, sizeof(struct stream_resource));
 					}
-
-					memcpy(&pipe->bottom_pipe->stream_res, &pipe->bottom_pipe->top_pipe->stream_res, sizeof(struct stream_resource));
 				}
+
+				if (pipe->top_pipe) {
+					pipe->top_pipe->bottom_pipe = NULL;
+				}
+
+				pipe->bottom_pipe = NULL;
+				pipe->next_odm_pipe = NULL;
+				pipe->plane_state = NULL;
+				pipe->stream = NULL;
+				pipe->top_pipe = NULL;
+				pipe->prev_odm_pipe = NULL;
+				if (pipe->stream_res.dsc)
+					dcn20_release_dsc(&context->res_ctx, dc->res_pool, &pipe->stream_res.dsc);
+				memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
+				memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
+				memset(&pipe->link_res, 0, sizeof(pipe->link_res));
+				repopulate_pipes = true;
+			} else if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state) {
+				struct pipe_ctx *top_pipe = pipe->top_pipe;
+				struct pipe_ctx *bottom_pipe = pipe->bottom_pipe;
+
+				top_pipe->bottom_pipe = bottom_pipe;
+				if (bottom_pipe)
+					bottom_pipe->top_pipe = top_pipe;
+
+				pipe->top_pipe = NULL;
+				pipe->bottom_pipe = NULL;
+				pipe->plane_state = NULL;
+				pipe->stream = NULL;
+				memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
+				memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
+				memset(&pipe->link_res, 0, sizeof(pipe->link_res));
+				repopulate_pipes = true;
+			} else
+				ASSERT(0); /* Should never try to merge master pipe */
+
+		}
+
+		for (i = 0, pipe_idx = -1; i < dc->res_pool->pipe_count; i++) {
+			struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
+			struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+			struct pipe_ctx *hsplit_pipe = NULL;
+			bool odm;
+			int old_index = -1;
+
+			if (!pipe->stream || newly_split[i])
+				continue;
+
+			pipe_idx++;
+			odm = vba->ODMCombineEnabled[vba->pipe_plane[pipe_idx]] != dm_odm_combine_mode_disabled;
+
+			if (!pipe->plane_state && !odm)
+				continue;
+
+			if (split[i]) {
+				if (odm) {
+					if (split[i] == 4 && old_pipe->next_odm_pipe && old_pipe->next_odm_pipe->next_odm_pipe)
+						old_index = old_pipe->next_odm_pipe->next_odm_pipe->pipe_idx;
+					else if (old_pipe->next_odm_pipe)
+						old_index = old_pipe->next_odm_pipe->pipe_idx;
+				} else {
+					if (split[i] == 4 && old_pipe->bottom_pipe && old_pipe->bottom_pipe->bottom_pipe &&
+							old_pipe->bottom_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
+						old_index = old_pipe->bottom_pipe->bottom_pipe->pipe_idx;
+					else if (old_pipe->bottom_pipe &&
+							old_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
+						old_index = old_pipe->bottom_pipe->pipe_idx;
+				}
+				hsplit_pipe = dcn32_find_split_pipe(dc, context, old_index);
+				ASSERT(hsplit_pipe);
+				if (!hsplit_pipe)
+					goto validate_fail;
+
+				if (!dcn32_split_stream_for_mpc_or_odm(
+						dc, &context->res_ctx,
+						pipe, hsplit_pipe, odm))
+					goto validate_fail;
+
+				newly_split[hsplit_pipe->pipe_idx] = true;
+				repopulate_pipes = true;
 			}
+			if (split[i] == 4) {
+				struct pipe_ctx *pipe_4to1;
 
-			if (pipe->top_pipe) {
-				pipe->top_pipe->bottom_pipe = NULL;
-			}
-
-			pipe->bottom_pipe = NULL;
-			pipe->next_odm_pipe = NULL;
-			pipe->plane_state = NULL;
-			pipe->stream = NULL;
-			pipe->top_pipe = NULL;
-			pipe->prev_odm_pipe = NULL;
-			if (pipe->stream_res.dsc)
-				dcn20_release_dsc(&context->res_ctx, dc->res_pool, &pipe->stream_res.dsc);
-			memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
-			memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
-			memset(&pipe->link_res, 0, sizeof(pipe->link_res));
-			repopulate_pipes = true;
-		} else if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state) {
-			struct pipe_ctx *top_pipe = pipe->top_pipe;
-			struct pipe_ctx *bottom_pipe = pipe->bottom_pipe;
-
-			top_pipe->bottom_pipe = bottom_pipe;
-			if (bottom_pipe)
-				bottom_pipe->top_pipe = top_pipe;
-
-			pipe->top_pipe = NULL;
-			pipe->bottom_pipe = NULL;
-			pipe->plane_state = NULL;
-			pipe->stream = NULL;
-			memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
-			memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
-			memset(&pipe->link_res, 0, sizeof(pipe->link_res));
-			repopulate_pipes = true;
-		} else
-			ASSERT(0); /* Should never try to merge master pipe */
-
-	}
-
-	for (i = 0, pipe_idx = -1; i < dc->res_pool->pipe_count; i++) {
-		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
-		struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
-		struct pipe_ctx *hsplit_pipe = NULL;
-		bool odm;
-		int old_index = -1;
-
-		if (!pipe->stream || newly_split[i])
-			continue;
-
-		pipe_idx++;
-		odm = vba->ODMCombineEnabled[vba->pipe_plane[pipe_idx]] != dm_odm_combine_mode_disabled;
-
-		if (!pipe->plane_state && !odm)
-			continue;
-
-		if (split[i]) {
-			if (odm) {
-				if (split[i] == 4 && old_pipe->next_odm_pipe && old_pipe->next_odm_pipe->next_odm_pipe)
-					old_index = old_pipe->next_odm_pipe->next_odm_pipe->pipe_idx;
-				else if (old_pipe->next_odm_pipe)
+				if (odm && old_pipe->next_odm_pipe)
 					old_index = old_pipe->next_odm_pipe->pipe_idx;
-			} else {
-				if (split[i] == 4 && old_pipe->bottom_pipe && old_pipe->bottom_pipe->bottom_pipe &&
-						old_pipe->bottom_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
-					old_index = old_pipe->bottom_pipe->bottom_pipe->pipe_idx;
-				else if (old_pipe->bottom_pipe &&
-						old_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
+				else if (!odm && old_pipe->bottom_pipe &&
+							old_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
 					old_index = old_pipe->bottom_pipe->pipe_idx;
+				else
+					old_index = -1;
+				pipe_4to1 = dcn32_find_split_pipe(dc, context, old_index);
+				ASSERT(pipe_4to1);
+				if (!pipe_4to1)
+					goto validate_fail;
+				if (!dcn32_split_stream_for_mpc_or_odm(
+						dc, &context->res_ctx,
+						pipe, pipe_4to1, odm))
+					goto validate_fail;
+				newly_split[pipe_4to1->pipe_idx] = true;
+
+				if (odm && old_pipe->next_odm_pipe && old_pipe->next_odm_pipe->next_odm_pipe
+						&& old_pipe->next_odm_pipe->next_odm_pipe->next_odm_pipe)
+					old_index = old_pipe->next_odm_pipe->next_odm_pipe->next_odm_pipe->pipe_idx;
+				else if (!odm && old_pipe->bottom_pipe && old_pipe->bottom_pipe->bottom_pipe &&
+						old_pipe->bottom_pipe->bottom_pipe->bottom_pipe &&
+						old_pipe->bottom_pipe->bottom_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
+					old_index = old_pipe->bottom_pipe->bottom_pipe->bottom_pipe->pipe_idx;
+				else
+					old_index = -1;
+				pipe_4to1 = dcn32_find_split_pipe(dc, context, old_index);
+				ASSERT(pipe_4to1);
+				if (!pipe_4to1)
+					goto validate_fail;
+				if (!dcn32_split_stream_for_mpc_or_odm(
+						dc, &context->res_ctx,
+						hsplit_pipe, pipe_4to1, odm))
+					goto validate_fail;
+				newly_split[pipe_4to1->pipe_idx] = true;
 			}
-			hsplit_pipe = dcn32_find_split_pipe(dc, context, old_index);
-			ASSERT(hsplit_pipe);
-			if (!hsplit_pipe)
-				goto validate_fail;
-
-			if (!dcn32_split_stream_for_mpc_or_odm(
-					dc, &context->res_ctx,
-					pipe, hsplit_pipe, odm))
-				goto validate_fail;
-
-			newly_split[hsplit_pipe->pipe_idx] = true;
-			repopulate_pipes = true;
+			if (odm)
+				dcn20_build_mapped_resource(dc, context, pipe->stream);
 		}
-		if (split[i] == 4) {
-			struct pipe_ctx *pipe_4to1;
 
-			if (odm && old_pipe->next_odm_pipe)
-				old_index = old_pipe->next_odm_pipe->pipe_idx;
-			else if (!odm && old_pipe->bottom_pipe &&
-						old_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
-				old_index = old_pipe->bottom_pipe->pipe_idx;
-			else
-				old_index = -1;
-			pipe_4to1 = dcn32_find_split_pipe(dc, context, old_index);
-			ASSERT(pipe_4to1);
-			if (!pipe_4to1)
-				goto validate_fail;
-			if (!dcn32_split_stream_for_mpc_or_odm(
-					dc, &context->res_ctx,
-					pipe, pipe_4to1, odm))
-				goto validate_fail;
-			newly_split[pipe_4to1->pipe_idx] = true;
+		for (i = 0; i < dc->res_pool->pipe_count; i++) {
+			struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
-			if (odm && old_pipe->next_odm_pipe && old_pipe->next_odm_pipe->next_odm_pipe
-					&& old_pipe->next_odm_pipe->next_odm_pipe->next_odm_pipe)
-				old_index = old_pipe->next_odm_pipe->next_odm_pipe->next_odm_pipe->pipe_idx;
-			else if (!odm && old_pipe->bottom_pipe && old_pipe->bottom_pipe->bottom_pipe &&
-					old_pipe->bottom_pipe->bottom_pipe->bottom_pipe &&
-					old_pipe->bottom_pipe->bottom_pipe->bottom_pipe->plane_state == old_pipe->plane_state)
-				old_index = old_pipe->bottom_pipe->bottom_pipe->bottom_pipe->pipe_idx;
-			else
-				old_index = -1;
-			pipe_4to1 = dcn32_find_split_pipe(dc, context, old_index);
-			ASSERT(pipe_4to1);
-			if (!pipe_4to1)
-				goto validate_fail;
-			if (!dcn32_split_stream_for_mpc_or_odm(
-					dc, &context->res_ctx,
-					hsplit_pipe, pipe_4to1, odm))
-				goto validate_fail;
-			newly_split[pipe_4to1->pipe_idx] = true;
-		}
-		if (odm)
-			dcn20_build_mapped_resource(dc, context, pipe->stream);
-	}
-
-	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
-
-		if (pipe->plane_state) {
-			if (!resource_build_scaling_params(pipe))
-				goto validate_fail;
+			if (pipe->plane_state) {
+				if (!resource_build_scaling_params(pipe))
+					goto validate_fail;
+			}
 		}
 	}