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Cleanup

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This commit is contained in:
Miodrag Milanovic 2024-05-09 20:20:53 +02:00
parent 3dedb11434
commit 8322bbd5ef
1 changed files with 11 additions and 1 deletions
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12
himbaechel/uarch/ng-ultra/pack.cc
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@ -739,10 +739,11 @@ void NgUltraPacker::promote_globals()
// Sort clocks by max fanout
std::sort(glb_fanout.begin(), glb_fanout.end(), std::greater<std::pair<int, IdString>>());
log_info("Promoting globals...\n");
int ddfr_removed = 0;
// Promote the N highest fanout clocks
for (size_t i = 0; i < std::min<size_t>(glb_fanout.size(), available_globals); i++) {
NetInfo *net = ctx->nets.at(glb_fanout.at(i).second).get();
log_info(" promoting clock net '%s'\n", ctx->nameOf(net));
log_info(" Promoting clock net '%s'\n", ctx->nameOf(net));
Loc iotp_loc = net->driver.cell->getLocation();
iotp_loc.z -= 1;
BelId iotp_bel = ctx->getBelByLocation(iotp_loc);
@ -771,7 +772,16 @@ void NgUltraPacker::promote_globals()
iom->connectPort(port, input_pad->getPort(id_O));
iom->connectPort((port==id_P17RI) ? id_CKO1 : id_CKO2, iom_to_clk);
ctx->bindBel(bel, iom, PlaceStrength::STRENGTH_LOCKED);
CellInfo *ddfr = net->driver.cell;
if (ddfr->getPort(id_O)->users.empty() && str_or_default(ddfr->params, ctx->id("type"), "")=="BFR") {
ddfr->disconnectPort(id_O);
ddfr->disconnectPort(id_I);
ddfr_removed++;
ctx->cells.erase(ddfr->name);
}
}
if (ddfr_removed)
log_info(" Removed %d unused DDFRs\n", ddfr_removed);
}
void NgUltraImpl::pack()
{