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Bugfix for nets that are not part of lowskew network

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This commit is contained in:
Miodrag Milanovic 2024-08-14 11:44:21 +02:00
parent 10149b138f
commit 4f905a13ea
1 changed files with 5 additions and 2 deletions
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7
himbaechel/uarch/ng-ultra/pack.cc
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@ -1762,7 +1762,7 @@ void NgUltraPacker::insert_wfb(CellInfo *cell, IdString port)
bool in_fabric = false; bool in_fabric = false;
bool in_ring = false; bool in_ring = false;
for (const auto &usr : net->users) { for (const auto &usr : net->users) {
if (uarch->is_fabric_clock_sink(usr) || uarch->is_tube_clock_sink(usr) || uarch->is_ring_over_tile_clock_sink(usr)) if (uarch->is_fabric_lowskew_sink(usr) || uarch->is_tube_clock_sink(usr) || uarch->is_ring_over_tile_clock_sink(usr))
in_fabric = true; in_fabric = true;
else else
in_ring = true; in_ring = true;
@ -1777,7 +1777,7 @@ void NgUltraPacker::insert_wfb(CellInfo *cell, IdString port)
NetInfo *net_zo = ctx->createNet(ctx->id(net->name.str(ctx) + "$ZO")); NetInfo *net_zo = ctx->createNet(ctx->id(net->name.str(ctx) + "$ZO"));
wfb->connectPort(id_ZO, net_zo); wfb->connectPort(id_ZO, net_zo);
for (const auto &usr : net->users) { for (const auto &usr : net->users) {
if (uarch->is_fabric_clock_sink(usr) || uarch->is_ring_over_tile_clock_sink(usr)) { if (uarch->is_fabric_lowskew_sink(usr) || uarch->is_ring_over_tile_clock_sink(usr)) {
usr.cell->disconnectPort(usr.port); usr.cell->disconnectPort(usr.port);
usr.cell->connectPort(usr.port, net_zo); usr.cell->connectPort(usr.port, net_zo);
} }
@ -2506,6 +2506,9 @@ void NgUltraImpl::route_lowskew()
std::queue<WireId> visit; std::queue<WireId> visit;
dict<WireId, PipId> backtrace; dict<WireId, PipId> backtrace;
WireId dest = WireId(); WireId dest = WireId();
// skip nets that are not part of lowskew routing
if (!(is_fabric_lowskew_sink(usr) || is_tube_clock_sink(usr) || is_ring_over_tile_clock_sink(usr)))
continue;
auto sink_wire = ctx->getNetinfoSinkWire(glb_net, usr, 0); auto sink_wire = ctx->getNetinfoSinkWire(glb_net, usr, 0);
if (ctx->debug) { if (ctx->debug) {