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[core] debugging

This commit is contained in:
tangxifan 2024-06-27 15:44:17 -07:00
parent f4f487099d
commit 5a7f618f29
1 changed files with 35 additions and 23 deletions
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58
openfpga/src/annotation/route_clock_rr_graph.cpp
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@ -137,7 +137,7 @@ static int route_clock_spine_switch_point(
vpr_routing_annotation.set_rr_node_net(des_node,
tree2clk_pin_map.at(ipin));
use_int_driver++;
VTR_LOGV(verbose, "Routing switch points of spine '%s' at the switching point (%lu, %lu) using internal driver\n",
VTR_LOGV(verbose, "Routed switch points of spine '%s' at the switching point (%lu, %lu) using internal driver\n",
clk_ntwk.spine_name(ispine).c_str(), src_coord.x(), src_coord.y());
}
}
@ -152,6 +152,9 @@ static int route_clock_spine_switch_point(
if (use_int_driver == 1) {
return CMD_EXEC_SUCCESS; /* Used internal driver, early pass */
}
VTR_LOGV(verbose, "Routed switch points of spine '%s' from (x=%lu, y=%lu) to spine '%s' at (x=%lu, y=%lu)\n",
clk_ntwk.spine_name(ispine).c_str(), src_coord.x(), src_coord.y(),
clk_ntwk.spine_name(des_spine).c_str(), des_coord.x(), des_coord.y());
vpr_routing_annotation.set_rr_node_prev_node(rr_graph, des_node,
src_node);
/* It could happen that there is no net mapped some clock pin, skip the
@ -224,6 +227,9 @@ static int route_spine_taps(
}
VTR_ASSERT(rr_graph.valid_node(src_node));
VTR_ASSERT(rr_graph.valid_node(des_node));
VTR_LOGV(verbose,
"Routed clock tap of spine '%s'\n",
clk_ntwk.spine_name(ispine).c_str());
vpr_routing_annotation.set_rr_node_prev_node(rr_graph, des_node,
src_node);
vpr_routing_annotation.set_rr_node_net(
@ -277,18 +283,28 @@ static int rec_expand_and_route_clock_spine(
const bool& verbose) {
int status = CMD_EXEC_SUCCESS;
bool curr_spine_usage = false;
bool curr_tap_usage = false;
/* For last level, we just connect tap points */
status = route_spine_taps(vpr_routing_annotation, curr_tap_usage, rr_graph, clk_rr_lookup, rr_node_gnets, tree2clk_pin_map, clk_ntwk, clk_tree, curr_spine, curr_pin, verbose);
if (CMD_EXEC_SUCCESS != status) {
return CMD_EXEC_FATAL_ERROR;
}
if (curr_tap_usage) {
curr_spine_usage = true;
}
std::vector<vtr::Point<int>> spine_coords =
clk_ntwk.spine_coordinates(curr_spine);
/* We expand from the the ending point to starting point on the straight line. As such, it is easy to turn off spines by any stop */
std::reverse(spine_coords.begin(), spine_coords.end());
/* The spine should go in a straight line, connect all the stops on the line */
for (size_t icoord = 0; icoord < spine_coords.size() - 1; ++icoord) {
vtr::Point<int> src_coord = spine_coords[icoord + 1];
vtr::Point<int> des_coord = spine_coords[icoord];
/* We expand from the the ending point to starting point on the straight line.
* As such, it is easy to turn off spines by any stop.
* The spine should go in a straight line, connect all the stops on the line */
bool prev_stop_usage = false;
for (size_t icoord = spine_coords.size() - 1; icoord >= 0; --icoord) {
vtr::Point<int> switch_point_coord = spine_coords[icoord];
bool curr_stop_usage = false;
/* Expand on the switching point here */
for (ClockSwitchPointId switch_point_id :
clk_ntwk.find_spine_switch_points_with_coord(curr_spine, src_coord)) {
clk_ntwk.find_spine_switch_points_with_coord(curr_spine, switch_point_coord)) {
ClockSpineId des_spine =
clk_ntwk.spine_switch_point_tap(curr_spine, switch_point_id);
/* Go recursively for the destination spine */
@ -310,12 +326,18 @@ static int rec_expand_and_route_clock_spine(
return CMD_EXEC_FATAL_ERROR;
}
}
if (disable_unused_spines && !curr_stop_usage) {
VTR_LOGV(verbose, "Disconnect backbone of spine '%s' from (x=%lu, y=%lu) to (x=%lu, y=%lu) as downstream is not used\n",
clk_ntwk.spine_name(curr_spine).c_str(), src_coord.x(), src_coord.y(), des_coord.x(), des_coord.y());
if (disable_unused_spines && !curr_stop_usage && !prev_stop_usage) {
VTR_LOGV(verbose, "Disconnect backbone of spine '%s' at (x=%lu, y=%lu) as downstream is not used\n",
clk_ntwk.spine_name(curr_spine).c_str(), switch_point_coord.x(), switch_point_coord.y());
continue;
}
/* Skip the first stop */
if (icoord == 0) {
continue;
}
/* Connect only when next stop is used */
vtr::Point<int> src_coord = spine_coords[icoord - 1];
vtr::Point<int> des_coord = spine_coords[icoord];
Direction src_spine_direction = clk_ntwk.spine_direction(curr_spine);
Direction des_spine_direction = clk_ntwk.spine_direction(curr_spine);
ClockLevelId src_spine_level = clk_ntwk.spine_level(curr_spine);
@ -328,23 +350,13 @@ static int rec_expand_and_route_clock_spine(
des_spine_level, curr_pin, des_spine_direction);
VTR_ASSERT(rr_graph.valid_node(src_node));
VTR_ASSERT(rr_graph.valid_node(des_node));
VTR_LOGV(verbose, "Routing backbone of spine '%s' from (x=%lu, y=%lu) to (x=%lu, y=%lu)...\n",
VTR_LOGV(verbose, "Routed backbone of spine '%s' from (x=%lu, y=%lu) to (x=%lu, y=%lu)...\n",
clk_ntwk.spine_name(curr_spine).c_str(), src_coord.x(), src_coord.y(), des_coord.x(), des_coord.y());
vpr_routing_annotation.set_rr_node_prev_node(rr_graph, des_node,
src_node);
prev_stop_usage = true;
curr_spine_usage = true;
}
bool curr_tap_usage = false;
/* For last level, we just connect tap points */
status = route_spine_taps(vpr_routing_annotation, curr_tap_usage, rr_graph, clk_rr_lookup, rr_node_gnets, tree2clk_pin_map, clk_ntwk, clk_tree, curr_spine, curr_pin, verbose);
if (CMD_EXEC_SUCCESS != status) {
return CMD_EXEC_FATAL_ERROR;
}
if (curr_tap_usage) {
curr_spine_usage = true;
}
/* Update status */
spine_usage = curr_spine_usage;