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timing: Implementing parts of new timing API

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-10-28 11:52:21 +00:00 committed by David Shah
parent 83b1c43630
commit b6312abc5d
2 changed files with 96 additions and 0 deletions
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94
common/nextpnr.cc
View File

@ -51,6 +51,100 @@ void IdString::initialize_add(const BaseCtx *ctx, const char *s, int idx)
ctx->idstring_idx_to_str->push_back(&insert_rc.first->first);
}
TimingConstrObjectId BaseCtx::timingWildcardObject() {
TimingConstrObjectId id;
id.index = 0;
return id;
}
TimingConstrObjectId BaseCtx::timingClockDomainObject(NetInfo *clockDomain) {
NPNR_ASSERT(clockDomain->clkconstr != nullptr);
if (clockDomain->clkconstr->domain_tmg_id != TimingConstrObjectId()) {
return clockDomain->clkconstr->domain_tmg_id;
} else {
TimingConstraintObject obj;
TimingConstrObjectId id;
id.index = int(constraintObjects.size());
obj.id = id;
obj.type = TimingConstraintObject::CLOCK_DOMAIN;
obj.entity = clockDomain->name;
clockDomain->clkconstr->domain_tmg_id = id;
constraintObjects.push_back(obj);
return id;
}
}
TimingConstrObjectId BaseCtx::timingNetObject(NetInfo *net) {
if (net->tmg_id != TimingConstrObjectId()) {
return net->tmg_id;
} else {
TimingConstraintObject obj;
TimingConstrObjectId id;
id.index = int(constraintObjects.size());
obj.id = id;
obj.type = TimingConstraintObject::NET;
obj.entity = net->name;
constraintObjects.push_back(obj);
net->tmg_id = id;
return id;
}
}
TimingConstrObjectId BaseCtx::timingCellObject(CellInfo *cell) {
if (cell->tmg_id != TimingConstrObjectId()) {
return cell->tmg_id;
} else {
TimingConstraintObject obj;
TimingConstrObjectId id;
id.index = int(constraintObjects.size());
obj.id = id;
obj.type = TimingConstraintObject::CELL;
obj.entity = cell->name;
constraintObjects.push_back(obj);
cell->tmg_id = id;
return id;
}
}
TimingConstrObjectId BaseCtx::timingPortObject(CellInfo *cell, IdString port) {
if (cell->ports.at(port).tmg_id != TimingConstrObjectId()) {
return cell->ports.at(port).tmg_id;
} else {
TimingConstraintObject obj;
TimingConstrObjectId id;
id.index = int(constraintObjects.size());
obj.id = id;
obj.type = TimingConstraintObject::CELL_PORT;
obj.entity = cell->name;
obj.port = port;
constraintObjects.push_back(obj);
cell->ports.at(port).tmg_id = id;
return id;
}
}
void BaseCtx::addConstraint(std::unique_ptr<TimingConstraint> constr) {
for (auto fromObj : constr->from)
constrsFrom.emplace(fromObj, constr.get());
for (auto toObj : constr->to)
constrsTo.emplace(toObj, constr.get());
IdString name = constr->name;
constraints[name] = std::move(constr);
}
void BaseCtx::removeConstraint(IdString constrName) {
TimingConstraint *constr = constraints[constrName].get();
for (auto fromObj : constr->from) {
auto fromConstrs = constrsFrom.equal_range(fromObj);
constrsFrom.erase(std::find(fromConstrs.first, fromConstrs.second, std::make_pair(fromObj, constr)));
}
for (auto toObj : constr->to) {
auto toConstrs = constrsFrom.equal_range(toObj);
constrsFrom.erase(std::find(toConstrs.first, toConstrs.second, std::make_pair(toObj, constr)));
}
constraints.erase(constrName);
}
WireId Context::getNetinfoSourceWire(const NetInfo *net_info) const
{
if (net_info->driver.cell == nullptr)

2
common/nextpnr.h
View File

@ -299,6 +299,8 @@ struct NetInfo : ArchNetInfo
ClockConstraint *clkconstr = nullptr;
TimingConstrObjectId tmg_id;
Region *region = nullptr;
};