caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #1028 from YosysHQ/gatecat/router2-reserve-src

Browse Source 
router2: Reserve source wire, too; ice40 fixes
This commit is contained in:
myrtle 2022-09-20 14:37:55 +02:00 committed by GitHub
commit 136ab81cbd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
common/route/router2.cc
View File

@ -453,6 +453,13 @@ struct Router2
{
bool did_something = false;
WireId src = ctx->getNetinfoSourceWire(net);
{
auto &src_wd = wire_data(src);
if (src_wd.reserved_net != -1 && src_wd.reserved_net != net->udata)
log_error("attempting to reserve src wire '%s' for nets '%s' and '%s'\n", ctx->nameOfWire(src),
ctx->nameOf(nets_by_udata.at(src_wd.reserved_net)), ctx->nameOf(net));
src_wd.reserved_net = net->udata;
}
auto &usr = net->users.at(i);
for (auto sink : ctx->getNetinfoSinkWires(net, usr)) {
pool<WireId> rsv;

10
ice40/arch.h
View File

@ -680,6 +680,16 @@ struct Arch : BaseArch<ArchRanges>
return switches_locked[pi.switch_index] == WireId();
}
bool checkPipAvailForNet(PipId pip, NetInfo *net) const override
{
if (ice40_pip_hard_unavail(pip))
return false;
auto &pi = chip_info->pip_data[pip.index];
auto swl = switches_locked[pi.switch_index];
return swl == WireId() || (swl == getPipDstWire(pip) && wire_to_net[swl.index] == net);
}
NetInfo *getBoundPipNet(PipId pip) const override
{
NPNR_ASSERT(pip != PipId());