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Gowin. Fix the port check for connectivity.

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What happens is that it's not enough to check for a network, we also
need to make sure that the network is functional: has src and sinks

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
This commit is contained in:
YRabbit 2024-10-03 06:13:36 +10:00
parent 4c3cc5f5bd
commit c064b84a08
3 changed files with 7 additions and 11 deletions
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12
himbaechel/uarch/gowin/globals.cc
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@ -340,8 +340,7 @@ struct GowinGlobalRouter
src = ctx->getBelPinWire(driver.cell->bel, driver.port);
}
RouteResult route_result = route_direct_net(
net, [&](PipId pip) { return global_DQCE_pip_filter(pip); }, src);
RouteResult route_result = route_direct_net(net, [&](PipId pip) { return global_DQCE_pip_filter(pip); }, src);
if (route_result == NOT_ROUTED) {
log_error("Can't route the %s network.\n", ctx->nameOf(net));
}
@ -418,8 +417,7 @@ struct GowinGlobalRouter
src = ctx->getBelPinWire(driver.cell->bel, driver.port);
}
RouteResult route_result = route_direct_net(
net, [&](PipId pip) { return global_DCS_pip_filter(pip); }, src);
RouteResult route_result = route_direct_net(net, [&](PipId pip) { return global_DCS_pip_filter(pip); }, src);
if (route_result == NOT_ROUTED) {
log_error("Can't route the %s network.\n", ctx->nameOf(net));
}
@ -506,8 +504,7 @@ struct GowinGlobalRouter
WireId src = ctx->getBelPinWire(driver.cell->bel, port);
std::vector<PipId> path;
RouteResult route_result = route_direct_net(
net, [&](PipId pip) { return global_pip_filter(pip); }, src, &path);
RouteResult route_result = route_direct_net(net, [&](PipId pip) { return global_pip_filter(pip); }, src, &path);
if (route_result == NOT_ROUTED) {
log_error("Can't route the %s network.\n", ctx->nameOf(net));
}
@ -571,8 +568,7 @@ struct GowinGlobalRouter
NetInfo *net_before_buf = buf_ci->getPort(id_I);
NPNR_ASSERT(net_before_buf != nullptr);
RouteResult route_result = route_direct_net(
net, [&](PipId pip) { return global_pip_filter(pip); }, src);
RouteResult route_result = route_direct_net(net, [&](PipId pip) { return global_pip_filter(pip); }, src);
if (route_result == NOT_ROUTED || route_result == ROUTED_PARTIALLY) {
log_error("Can't route the %s net. It might be worth removing the BUFG buffer flag.\n", ctx->nameOf(net));
}