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Add bundle support

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This commit is contained in:
Akash Levy 2024-10-05 01:35:03 -10:00
parent 36e57017fe
commit f76cb43ac7
1 changed files with 49 additions and 2 deletions
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51
frontends/liberty/liberty.cc
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@ -529,7 +529,7 @@ struct LibertyFrontend : public Frontend {
std::map<std::string, std::tuple<int, int, bool>> global_type_map; std::map<std::string, std::tuple<int, int, bool>> global_type_map;
parse_type_map(global_type_map, parser.ast); parse_type_map(global_type_map, parser.ast);
string leakage_power_unit; string leakage_power_unit = "";
for (auto cell : parser.ast->children) for (auto cell : parser.ast->children)
{ {
if (cell->id == "leakage_power_unit") if (cell->id == "leakage_power_unit")
@ -560,7 +560,8 @@ struct LibertyFrontend : public Frontend {
RTLIL::Module *module = new RTLIL::Module; RTLIL::Module *module = new RTLIL::Module;
module->name = cell_name; module->name = cell_name;
module->attributes["\\leakage_power_unit"] = leakage_power_unit; if (leakage_power_unit != "")
module->attributes["\\leakage_power_unit"] = leakage_power_unit;
if (flag_lib) if (flag_lib)
module->set_bool_attribute(ID::blackbox); module->set_bool_attribute(ID::blackbox);
@ -635,6 +636,52 @@ struct LibertyFrontend : public Frontend {
if (dir->value == "output" || dir->value == "inout") if (dir->value == "output" || dir->value == "inout")
wire->port_output = true; wire->port_output = true;
} }
if (node->id == "bundle" && node->args.size() == 1)
{
if (!flag_lib)
log_error("Error in cell %s: bundle interfaces are only supported in -lib mode.\n", log_id(cell_name));
const LibertyAst *dir = node->find("direction");
if (dir == nullptr) {
const LibertyAst *pin = node->find("pin");
if (pin != nullptr)
dir = pin->find("direction");
}
if (!dir || (dir->value != "input" && dir->value != "output" && dir->value != "inout" && dir->value != "internal"))
log_error("Missing or invalid direction for bundle %s on cell %s.\n", node->args.at(0).c_str(), log_id(module->name));
if (dir->value == "internal")
continue;
const LibertyAst *members = node->find("members");
if (!members)
log_error("Missing members for bundle %s on cell %s.\n", node->args.at(0).c_str(), log_id(module->name));
for (auto member : members->args)
{
Wire *wire = module->addWire(RTLIL::escape_id(member));
if (dir && dir->value == "inout") {
wire->port_input = true;
wire->port_output = true;
}
if (dir && dir->value == "input") {
wire->port_input = true;
continue;
}
if (dir && dir->value == "output")
wire->port_output = true;
if (flag_lib)
continue;
}
}
} }
if (!flag_lib) if (!flag_lib)