[core] still developing tile module port and net builder

This commit is contained in:
tangxifan 2023-07-18 16:03:47 -07:00
parent aabcc25567
commit 403ed4ea60
3 changed files with 233 additions and 99 deletions

View File

@ -73,42 +73,68 @@ FabricTileId FabricTile::find_tile(const vtr::Point<size_t>& coord) const {
}
bool FabricTile::pb_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const {
return find_pb_index_in_tile(tile_id, coord) != pb_coords_.size();
}
size_t FabricTile::find_pb_index_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const {
VTR_ASSERT(valid_tile_id(tile_id));
for (vtr::Point<size_t> curr_coord : pb_coords_[tile_id]) {
for (size_t idx = 0; idx < pb_coords_[tile_id].size(); ++idx) {
vtr::Point<size_t> curr_coord = pb_coords_[tile_id][idx];
if (curr_coord == coord) {
return true;
return idx;
}
}
return false;
/* Not found, return an invalid index */
return pb_coords_.size();
}
bool FabricTile::sb_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const {
return find_sb_index_in_tile(tile_id, coord) != sb_coords_.size();
}
size_t FabricTile::find_sb_index_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const {
VTR_ASSERT(valid_tile_id(tile_id));
for (vtr::Point<size_t> curr_coord : sb_coords_[tile_id]) {
for (size_t idx = 0; idx < sb_coords_[tile_id].size(); ++idx) {
vtr::Point<size_t> curr_coord = sb_coords_[tile_id][idx];
if (curr_coord == coord) {
return true;
return idx;
}
}
return false;
/* Not found, return an invalid index */
return sb_coords_.size();
}
bool FabricTile::cb_in_tile(const FabricTileId& tile_id, const t_rr_type& cb_type, const vtr::Point<size_t>& coord) const {
switch (cb_type) {
case CHANX:
return find_cb_index_in_tile(tile_id, cb_type, coord) == cbx_coords_.size();
case CHANY:
return find_cb_index_in_tile(tile_id, cb_type, coord) == cby_coords_.size();
default:
VTR_LOG("Invalid type of connection block!\n");
exit(1);
}
}
size_t FabricTile::find_cb_index_in_tile(const FabricTileId& tile_id, const t_rr_type& cb_type, const vtr::Point<size_t>& coord) const {
VTR_ASSERT(valid_tile_id(tile_id));
switch (cb_type) {
case CHANX:
for (vtr::Point<size_t> curr_coord : cbx_coords_[tile_id]) {
for (size_t idx = 0; idx < cbx_coords_[tile_id].size(); ++idx) {
vtr::Point<size_t> curr_coord = cbx_coords_[tile_id][idx];
if (curr_coord == coord) {
return true;
return idx;
}
}
return false;
return cbx_coords_[tile_id].size();
case CHANY:
for (vtr::Point<size_t> curr_coord : cby_coords_[tile_id]) {
for (size_t idx = 0; idx < cby_coords_[tile_id].size(); ++idx) {
vtr::Point<size_t> curr_coord = cby_coords_[tile_id][idx];
if (curr_coord == coord) {
return true;
return idx;
}
}
return false;
return cby_coords_[tile_id].size();
default:
VTR_LOG("Invalid type of connection block!\n");
exit(1);

View File

@ -41,6 +41,12 @@ class FabricTile {
FabricTileId find_tile(const vtr::Point<size_t>& coord) const;
/** @brief Return a list of unique tiles */
std::vector<FabricTileId> unique_tiles() const;
/** @brief Find the index of a programmable block in the internal list by a given coordinate. */
size_t find_pb_index_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const;
/** @brief Find the index of a switch block in the internal list by a given coordinate. */
size_t find_sb_index_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const;
/** @brief Find the index of a connection block in the internal list by a given coordinate. */
size_t find_cb_index_in_tile(const FabricTileId& tile_id, const t_rr_type& cb_type, const vtr::Point<size_t>& coord) const;
/** @brief Check if a programmable block (with a coordinate) exists in a tile */
bool pb_in_tile(const FabricTileId& tile_id, const vtr::Point<size_t>& coord) const;
/** @brief Check if a switch block (with a coordinate) exists in a tile */

View File

@ -61,6 +61,7 @@ static int build_tile_module_port_and_nets_between_sb_and_pb(ModuleManager& modu
const RRGSB& rr_gsb,
const FabricTile& fabric_tile,
const FabricTileId& fabric_tile_id,
const size_t& pb_instances,
const size_t& sb_instance,
const bool& compress_routing_hierarchy,
const bool& frame_view,
@ -117,8 +118,6 @@ static int build_tile_module_port_and_nets_between_sb_and_pb(ModuleManager& modu
ModuleId src_grid_module =
module_manager.find_module(src_grid_module_name);
VTR_ASSERT(true == module_manager.valid_module_id(src_grid_module));
size_t src_grid_instance =
grid_instance_ids[grid_coordinate.x()][grid_coordinate.y()];
size_t src_grid_pin_index = rr_graph.node_pin_num(
rr_gsb.get_opin_node(side_manager.get_side(), inode));
@ -150,6 +149,7 @@ static int build_tile_module_port_and_nets_between_sb_and_pb(ModuleManager& modu
/* Check if the grid is inside the tile, if not, create ports */
if (fabric_tile.pb_in_tile(grid_coordinate) && !frame_view) {
size_t src_grid_instance = grid_instances[fabric_tile.find_pb_index(fabric_tile_id, grid_coordinate)];
/* Collect sink-related information */
vtr::Point<size_t> sink_sb_port_coord(
rr_graph.node_xlow(
@ -263,7 +263,9 @@ static int build_tile_module_port_and_nets_between_cb_and_pb(ModuleManager& modu
const RRGSB& rr_gsb,
const FabricTile& fabric_tile,
const FabricTileId& fabric_tile_id,
const size_t& sb_instance,
const t_rr_type& cb_type,
const std::vector<size_t>& pb_instances,
const size_t& cb_instance,
const bool& compress_routing_hierarchy,
const bool& frame_view,
const bool& verbose) {
@ -304,8 +306,7 @@ static int build_tile_module_port_and_nets_between_cb_and_pb(ModuleManager& modu
ModuleId src_cb_module = module_manager.find_module(src_cb_module_name);
VTR_ASSERT(true == module_manager.valid_module_id(src_cb_module));
/* Instance id should follow the instance cb coordinate */
size_t src_cb_instance =
cb_instance_ids[instance_cb_coordinate.x()][instance_cb_coordinate.y()];
size_t src_cb_instance = cb_instance;
/* Iterate over the output pins of the Connection Block */
std::vector<enum e_side> cb_ipin_sides = module_cb.get_cb_ipin_sides(cb_type);
@ -341,8 +342,6 @@ static int build_tile_module_port_and_nets_between_cb_and_pb(ModuleManager& modu
ModuleId sink_grid_module =
module_manager.find_module(sink_grid_module_name);
VTR_ASSERT(true == module_manager.valid_module_id(sink_grid_module));
size_t sink_grid_instance =
grid_instance_ids[grid_coordinate.x()][grid_coordinate.y()];
size_t sink_grid_pin_index = rr_graph.node_pin_num(instance_ipin_node);
t_physical_tile_type_ptr grid_type_descriptor =
@ -371,22 +370,40 @@ static int build_tile_module_port_and_nets_between_cb_and_pb(ModuleManager& modu
BasicPort sink_grid_port =
module_manager.module_port(sink_grid_module, sink_grid_port_id);
/* Source and sink port should match in size */
VTR_ASSERT(src_cb_port.get_width() == sink_grid_port.get_width());
/* Check if the grid is inside the tile, if not, create ports */
if (fabric_tile.pb_in_tile(grid_coordinate) && !frame_view) {
size_t sink_grid_instance =
grid_instances[fabric_tile.find_pb_index_in_tile(fabric_tile_id, grid_coordinate)];
/* Create a net for each pin */
for (size_t pin_id = 0; pin_id < src_cb_port.pins().size(); ++pin_id) {
ModuleNetId net = create_module_source_pin_net(
module_manager, top_module, src_cb_module, src_cb_instance,
src_cb_port_id, src_cb_port.pins()[pin_id]);
/* Configure the net sink */
module_manager.add_module_net_sink(
top_module, net, sink_grid_module, sink_grid_instance,
sink_grid_port_id, sink_grid_port.pins()[pin_id]);
/* Source and sink port should match in size */
VTR_ASSERT(src_cb_port.get_width() == sink_grid_port.get_width());
/* Create a net for each pin */
for (size_t pin_id = 0; pin_id < src_cb_port.pins().size(); ++pin_id) {
ModuleNetId net = create_module_source_pin_net(
module_manager, tile_module, src_cb_module, src_cb_instance,
src_cb_port_id, src_cb_port.pins()[pin_id]);
/* Configure the net sink */
module_manager.add_module_net_sink(
tile_module, net, sink_grid_module, sink_grid_instance,
sink_grid_port_id, sink_grid_port.pins()[pin_id]);
}
} else {
/* Create a port on the tile module and create the net if required */
ModulePortId sink_tile_port_id = module_manager.add_port(tile_module, src_cb_port, ModuleManager::e_module_port_type::MODULE_OUTPUT_PORT);
/* Create a net for each pin */
for (size_t pin_id = 0; pin_id < src_cb_port.pins().size(); ++pin_id) {
ModuleNetId net = create_module_source_pin_net(
module_manager, tile_module, src_cb_module, src_cb_instance, src_tile_port_id, src_cb_port.pins()[pin_id]);
/* Configure the net sink */
module_manager.add_module_net_sink(tile_module, net, tile_module,
0, sink_tile_port_id,
src_cb_port.pins()[pin_id]);
}
}
}
}
return CMD_EXEC_SUCCESS;
}
/********************************************************************
@ -428,7 +445,18 @@ static int build_tile_module_port_and_nets_between_cb_and_pb(ModuleManager& modu
* connection blocks
*
*******************************************************************/
static int build_tile_module_port_and_nets_between_sb_and_cb() {
static int build_tile_module_port_and_nets_between_sb_and_cb(ModuleManager& module_manager,
const ModuleId& tile_module,
const VprDeviceAnnotation& vpr_device_annotation,
const DeviceRRGSB& device_rr_gsb,
const RRGSB& rr_gsb,
const FabricTile& fabric_tile,
const FabricTileId& fabric_tile_id,
const std::map<t_rr_type, std::vector<size_t>>& cb_instances,
const size_t& sb_instance,
const bool& compress_routing_hierarchy,
const bool& frame_view,
const bool& verbose) {
/* We could have two different coordinators, one is the instance, the other is
* the module */
vtr::Point<size_t> instance_sb_coordinate(rr_gsb.get_sb_x(),
@ -457,8 +485,6 @@ static int build_tile_module_port_and_nets_between_sb_and_cb() {
generate_switch_block_module_name(module_sb_coordinate);
ModuleId sb_module_id = module_manager.find_module(sb_module_name);
VTR_ASSERT(true == module_manager.valid_module_id(sb_module_id));
size_t sb_instance =
sb_instance_ids[instance_sb_coordinate.x()][instance_sb_coordinate.y()];
/* Connect grid output pins (OPIN) to switch block grid pins */
for (size_t side = 0; side < module_sb.get_num_sides(); ++side) {
@ -522,70 +548,107 @@ static int build_tile_module_port_and_nets_between_sb_and_cb() {
device_rr_gsb.get_gsb(instance_gsb_cb_coordinate);
vtr::Point<size_t> instance_cb_coordinate(instance_cb.get_cb_x(cb_type),
instance_cb.get_cb_y(cb_type));
size_t cb_instance = cb_instance_ids.at(
cb_type)[instance_cb_coordinate.x()][instance_cb_coordinate.y()];
for (size_t itrack = 0;
itrack < module_sb.get_chan_width(side_manager.get_side()); ++itrack) {
std::string sb_port_name = generate_sb_module_track_port_name(
rr_graph.node_type(
module_sb.get_chan_node(side_manager.get_side(), itrack)),
side_manager.get_side(),
module_sb.get_chan_node_direction(side_manager.get_side(), itrack));
/* Prepare SB-related port information */
ModulePortId sb_port_id =
module_manager.find_module_port(sb_module_id, sb_port_name);
VTR_ASSERT(true ==
module_manager.valid_module_port_id(sb_module_id, sb_port_id));
BasicPort sb_port = module_manager.module_port(sb_module_id, sb_port_id);
/* Check if the grid is inside the tile, if not, create ports */
if (fabric_tile.cb_in_tile(fabric_tile_id, cb_type, instance_cb_coordinate) && !frame_view) {
size_t cb_instance = cb_instances.at(cb_type)[fabric_tile.find_cb_index_in_tile(fabric_tile_id, cb_type, instance_cb_coordinate)];
/* Prepare CB-related port information */
PORTS cb_port_direction = OUT_PORT;
/* The cb port direction should be opposite to the sb port !!! */
if (OUT_PORT ==
module_sb.get_chan_node_direction(side_manager.get_side(), itrack)) {
cb_port_direction = IN_PORT;
} else {
VTR_ASSERT(IN_PORT == module_sb.get_chan_node_direction(
side_manager.get_side(), itrack));
for (size_t itrack = 0;
itrack < module_sb.get_chan_width(side_manager.get_side()); ++itrack) {
std::string sb_port_name = generate_sb_module_track_port_name(
rr_graph.node_type(
module_sb.get_chan_node(side_manager.get_side(), itrack)),
side_manager.get_side(),
module_sb.get_chan_node_direction(side_manager.get_side(), itrack));
/* Prepare SB-related port information */
ModulePortId sb_port_id =
module_manager.find_module_port(sb_module_id, sb_port_name);
VTR_ASSERT(true ==
module_manager.valid_module_port_id(sb_module_id, sb_port_id));
BasicPort sb_port = module_manager.module_port(sb_module_id, sb_port_id);
/* Prepare CB-related port information */
PORTS cb_port_direction = OUT_PORT;
/* The cb port direction should be opposite to the sb port !!! */
if (OUT_PORT ==
module_sb.get_chan_node_direction(side_manager.get_side(), itrack)) {
cb_port_direction = IN_PORT;
} else {
VTR_ASSERT(IN_PORT == module_sb.get_chan_node_direction(
side_manager.get_side(), itrack));
}
/* Upper CB port is required if the routing tracks are on the top or right
* sides of the switch block, which indicated bottom and left sides of the
* connection blocks
*/
bool use_cb_upper_port =
(TOP == side_manager.get_side()) || (RIGHT == side_manager.get_side());
std::string cb_port_name = generate_cb_module_track_port_name(
cb_type, cb_port_direction, use_cb_upper_port);
ModulePortId cb_port_id =
module_manager.find_module_port(cb_module_id, cb_port_name);
VTR_ASSERT(true ==
module_manager.valid_module_port_id(cb_module_id, cb_port_id));
BasicPort cb_port = module_manager.module_port(cb_module_id, cb_port_id);
/* Configure the net source and sink:
* If sb port is an output (source), cb port is an input (sink)
* If sb port is an input (sink), cb port is an output (source)
*/
if (OUT_PORT ==
module_sb.get_chan_node_direction(side_manager.get_side(), itrack)) {
ModuleNetId net =
create_module_source_pin_net(module_manager, tile_module, sb_module_id,
sb_instance, sb_port_id, itrack / 2);
module_manager.add_module_net_sink(tile_module, net, cb_module_id,
cb_instance, cb_port_id, itrack / 2);
} else {
VTR_ASSERT(IN_PORT == module_sb.get_chan_node_direction(
side_manager.get_side(), itrack));
ModuleNetId net =
create_module_source_pin_net(module_manager, tile_module, cb_module_id,
cb_instance, cb_port_id, itrack / 2);
module_manager.add_module_net_sink(tile_module, net, sb_module_id,
sb_instance, sb_port_id, itrack / 2);
}
}
/* Upper CB port is required if the routing tracks are on the top or right
* sides of the switch block, which indicated bottom and left sides of the
* connection blocks
*/
bool use_cb_upper_port =
(TOP == side_manager.get_side()) || (RIGHT == side_manager.get_side());
std::string cb_port_name = generate_cb_module_track_port_name(
cb_type, cb_port_direction, use_cb_upper_port);
ModulePortId cb_port_id =
module_manager.find_module_port(cb_module_id, cb_port_name);
VTR_ASSERT(true ==
module_manager.valid_module_port_id(cb_module_id, cb_port_id));
BasicPort cb_port = module_manager.module_port(cb_module_id, cb_port_id);
/* Configure the net source and sink:
* If sb port is an output (source), cb port is an input (sink)
* If sb port is an input (sink), cb port is an output (source)
*/
if (OUT_PORT ==
module_sb.get_chan_node_direction(side_manager.get_side(), itrack)) {
ModuleNetId net =
create_module_source_pin_net(module_manager, top_module, sb_module_id,
sb_instance, sb_port_id, itrack / 2);
module_manager.add_module_net_sink(top_module, net, cb_module_id,
cb_instance, cb_port_id, itrack / 2);
} else {
VTR_ASSERT(IN_PORT == module_sb.get_chan_node_direction(
side_manager.get_side(), itrack));
ModuleNetId net =
create_module_source_pin_net(module_manager, top_module, cb_module_id,
cb_instance, cb_port_id, itrack / 2);
module_manager.add_module_net_sink(top_module, net, sb_module_id,
sb_instance, sb_port_id, itrack / 2);
} else {
/* Create input and output ports */
std::string chan_input_port_name = generate_sb_module_track_port_name(
cb_type, side_manager.get_side(), IN_PORT);
/* Create a port on the tile module and create the net if required */
ModulePortId sb_chan_input_port_id = module_manager.find_module_port(sb_module_id, chan_input_port_name);
BasicPort chan_input_port = module_manager.module_port(sb_module_id, sb_chan_input_port_id);
ModulePortId tile_chan_input_port_id = module_manager.add_port(tile_module, chan_input_port, ModuleManager::e_module_port_type::MODULE_INPUT_PORT);
/* Create a net for each pin */
for (size_t pin_id = 0; pin_id < chan_input_port.pins().size(); ++pin_id) {
ModuleNetId net = create_module_source_pin_net(
module_manager, tile_module, tile_module, 0, tile_chan_input_port_id, chan_input_port.pins()[pin_id]);
/* Configure the net sink */
module_manager.add_module_net_sink(tile_module, net, sb_module_id,
sb_instance, sb_chan_input_port_id,
chan_input_port.pins()[pin_id]);
}
std::string chan_output_port_name = generate_sb_module_track_port_name(
cb_type, side_manager.get_side(), OUT_PORT);
/* Create a port on the tile module and create the net if required */
ModulePortId sb_chan_output_port_id = module_manager.find_module_port(sb_module_id, chan_output_port_name);
BasicPort chan_output_port = module_manager.module_port(sb_module_id, sb_chan_output_port_id);
ModulePortId tile_chan_output_port_id = module_manager.add_port(tile_module, chan_output_port, ModuleManager::e_module_port_type::MODULE_OUTPUT_PORT);
/* Create a net for each pin */
for (size_t pin_id = 0; pin_id < chan_output_port.pins().size(); ++pin_id) {
ModuleNetId net = create_module_source_pin_net(
module_manager, tile_module, sb_module_id, sb_instance, sb_chan_output_port_id, chan_output_port.pins()[pin_id]);
/* Configure the net sink */
module_manager.add_module_net_sink(tile_module, net, tile_module,
0, tile_chan_output_port_id,
chan_output_port.pins()[pin_id]);
}
}
}
return CMD_EXEC_SUCCESS;
}
static int build_tile_port_and_nets_from_pb() {
@ -606,6 +669,8 @@ static int build_tile_module_ports_and_nets(ModuleManager& module_manager,
const DeviceRRGSB& device_rr_gsb,
const FabricTile& fabric_tile,
const FabricTileId& fabric_tile_id,
const std::vector<size_t>& pb_instances,
const std::map<t_rr_type, std::vector<size_t>>& cb_instances,
const std::vector<size_t>& sb_instances,
const bool& frame_view,
const bool& verbose) {
@ -622,6 +687,7 @@ static int build_tile_module_ports_and_nets(ModuleManager& module_manager,
rr_gsb,
fabric_tile,
fabric_tile_id,
pb_instances,
sb_instances[isb],
true,
frame_view,
@ -631,14 +697,46 @@ static int build_tile_module_ports_and_nets(ModuleManager& module_manager,
}
}
/* TODO: Get the submodule of connection blocks one by one, build connections between cb and pb */
status_code = build_tile_module_port_and_nets_between_cb_and_pb();
if (status_code != CMD_EXEC_SUCCESS) {
return CMD_EXEC_FATAL_ERROR;
for (t_rr_type cb_type : {CHANX, CHANY}) {
for (size_t icb = 0; icb < fabric_tile.cb_coordinates(fabric_tile_id, cb_type).size(); ++icb) {
vtr::Point<size_t> cb_coord = fabric_tile.cb_coordinates(fabric_tile_id, cb_type)[icb];
const RRGSB& rr_gsb = device_rr_gsb.get_gsb(cb_coord);
status_code = build_tile_module_port_and_nets_between_cb_and_pb(module_manager,
tile_module,
vpr_device_annotation,
device_rr_gsb,
rr_gsb,
fabric_tile,
fabric_tile_id,
pb_instances,
cb_instances[cb_type][icb],
true,
frame_view,
verbose);
if (status_code != CMD_EXEC_SUCCESS) {
return CMD_EXEC_FATAL_ERROR;
}
}
}
/* TODO: Get the submodule of connection blocks one by one, build connections between sb and cb */
status_code = build_tile_module_port_and_nets_between_sb_and_cb();
if (status_code != CMD_EXEC_SUCCESS) {
return CMD_EXEC_FATAL_ERROR;
for (size_t isb = 0; isb < fabric_tile.sb_coordinates(fabric_tile_id).size(); ++isb) {
vtr::Point<size_t> sb_coord = fabric_tile.sb_coordinates(fabric_tile_id)[isb];
const RRGSB& rr_gsb = device_rr_gsb.get_gsb(sb_coord);
status_code = build_tile_module_port_and_nets_between_sb_and_cb(module_manager,
tile_module,
vpr_device_annotation,
device_rr_gsb,
rr_gsb,
fabric_tile,
fabric_tile_id,
cb_instances,
sb_instances[isb],
true,
frame_view,
verbose);
if (status_code != CMD_EXEC_SUCCESS) {
return CMD_EXEC_FATAL_ERROR;
}
}
/* TODO: Create the ports from pb which only connects to adjacent sb and cbs, as well as pb */
status_code = build_tile_port_and_nets_from_pb();
@ -672,6 +770,7 @@ static int build_tile_module(
vtr::Point<size_t> tile_coord = fabric_tile.tile_coordinate(fabric_tile_id);
/* Add instance of programmable block */
std::vector<size_t> pb_instances; /* Keep tracking the instance id of each pb */
for (vtr::Point<size_t> grid_gsb_coord :
fabric_tile.pb_coordinates(fabric_tile_id)) {
const RRGSB& grid_rr_gsb = device_rr_gsb.get_gsb(grid_gsb_coord);
@ -702,9 +801,11 @@ static int build_tile_module(
VTR_LOGV(verbose, "Added programmable module '%s' to tile[%lu][%lu]\n",
pb_module_name.c_str(), tile_coord.x(), tile_coord.y());
}
pb_instances.push_back(pb_instance);
}
/* Add instance of connection blocks */
std::map<t_rr_type, <std::vector<size_t>> cb_instances; /* Keep tracking the instance id of each cb */
for (t_rr_type cb_type : {CHANX, CHANY}) {
for (vtr::Point<size_t> cb_coord :
fabric_tile.cb_coordinates(fabric_tile_id, cb_type)) {
@ -734,6 +835,7 @@ static int build_tile_module(
VTR_LOGV(verbose,
"Added connection block module '%s' to tile[%lu][%lu]\n",
cb_module_name.c_str(), tile_coord.x(), tile_coord.y());
cb_instances[cb_type].push_back(cb_instance);
}
}
@ -767,7 +869,7 @@ static int build_tile_module(
}
/* TODO: Add module nets and ports */
status_code = build_tile_module_ports_and_nets(module_manager, tile_module, vpr_device_annotation, device_rr_gsb, fabric_tile, fabric_tile_id, sb_instances, frame_view, verbose);
status_code = build_tile_module_ports_and_nets(module_manager, tile_module, vpr_device_annotation, device_rr_gsb, fabric_tile, fabric_tile_id, pb_instances, cb_instances, sb_instances, frame_view, verbose);
/* Add global ports to the pb_module:
* This is a much easier job after adding sub modules (instances),