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-rw-r--r--passes/hierarchy/hierarchy.cc76
1 files changed, 58 insertions, 18 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc
index b8ff99884..72bc2e133 100644
--- a/passes/hierarchy/hierarchy.cc
+++ b/passes/hierarchy/hierarchy.cc
@@ -570,7 +570,7 @@ struct HierarchyPass : public Pass {
log("\n");
log(" -simcheck\n");
log(" like -check, but also throw an error if blackbox modules are\n");
- log(" instantiated, and throw an error if the design has no top module\n");
+ log(" instantiated, and throw an error if the design has no top module.\n");
log("\n");
log(" -purge_lib\n");
log(" by default the hierarchy command will not remove library (blackbox)\n");
@@ -583,20 +583,20 @@ struct HierarchyPass : public Pass {
log("\n");
log(" -keep_positionals\n");
log(" per default this pass also converts positional arguments in cells\n");
- log(" to arguments using port names. this option disables this behavior.\n");
+ log(" to arguments using port names. This option disables this behavior.\n");
log("\n");
log(" -keep_portwidths\n");
log(" per default this pass adjusts the port width on cells that are\n");
- log(" module instances when the width does not match the module port. this\n");
+ log(" module instances when the width does not match the module port. This\n");
log(" option disables this behavior.\n");
log("\n");
log(" -nokeep_asserts\n");
log(" per default this pass sets the \"keep\" attribute on all modules\n");
- log(" that directly or indirectly contain one or more $assert cells. this\n");
- log(" option disables this behavior.\n");
+ log(" that directly or indirectly contain one or more formal properties.\n");
+ log(" This option disables this behavior.\n");
log("\n");
log(" -top <module>\n");
- log(" use the specified top module to built a design hierarchy. modules\n");
+ log(" use the specified top module to build the design hierarchy. Modules\n");
log(" outside this tree (unused modules) are removed.\n");
log("\n");
log(" when the -top option is used, the 'top' attribute will be set on the\n");
@@ -606,6 +606,12 @@ struct HierarchyPass : public Pass {
log(" -auto-top\n");
log(" automatically determine the top of the design hierarchy and mark it.\n");
log("\n");
+ log(" -chparam name value \n");
+ log(" elaborate the top module using this parameter value. Modules on which\n");
+ log(" this parameter does not exist may cause a warning message to be output.\n");
+ log(" This option can be specified multiple times to override multiple\n");
+ log(" parameters. String values must be passed in double quotes (\").\n");
+ log("\n");
log("In -generate mode this pass generates blackbox modules for the given cell\n");
log("types (wildcards supported). For this the design is searched for cells that\n");
log("match the given types and then the given port declarations are used to\n");
@@ -641,6 +647,7 @@ struct HierarchyPass : public Pass {
bool nokeep_asserts = false;
std::vector<std::string> generate_cells;
std::vector<generate_port_decl_t> generate_ports;
+ std::map<std::string, std::string> parameters;
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
@@ -715,28 +722,61 @@ struct HierarchyPass : public Pass {
if (args[argidx] == "-top") {
if (++argidx >= args.size())
log_cmd_error("Option -top requires an additional argument!\n");
- top_mod = design->modules_.count(RTLIL::escape_id(args[argidx])) ? design->modules_.at(RTLIL::escape_id(args[argidx])) : NULL;
- if (top_mod == NULL && design->modules_.count("$abstract" + RTLIL::escape_id(args[argidx]))) {
- dict<RTLIL::IdString, RTLIL::Const> empty_parameters;
- design->modules_.at("$abstract" + RTLIL::escape_id(args[argidx]))->derive(design, empty_parameters);
- top_mod = design->modules_.count(RTLIL::escape_id(args[argidx])) ? design->modules_.at(RTLIL::escape_id(args[argidx])) : NULL;
- }
- if (top_mod == NULL)
- load_top_mod = args[argidx];
+ load_top_mod = args[argidx];
continue;
}
if (args[argidx] == "-auto-top") {
auto_top_mode = true;
continue;
}
+ if (args[argidx] == "-chparam" && argidx+2 < args.size()) {
+ const std::string &key = args[++argidx];
+ const std::string &value = args[++argidx];
+ auto r = parameters.emplace(key, value);
+ if (!r.second) {
+ log_warning("-chparam %s already specified: overwriting.\n", key.c_str());
+ r.first->second = value;
+ }
+ continue;
+ }
break;
}
extra_args(args, argidx, design, false);
- if (!load_top_mod.empty()) {
+ if (!load_top_mod.empty())
+ {
+ IdString top_name = RTLIL::escape_id(load_top_mod);
+ IdString abstract_id = "$abstract" + RTLIL::escape_id(load_top_mod);
+ top_mod = design->module(top_name);
+
+ dict<RTLIL::IdString, RTLIL::Const> top_parameters;
+ for (auto &para : parameters) {
+ SigSpec sig_value;
+ if (!RTLIL::SigSpec::parse(sig_value, NULL, para.second))
+ log_cmd_error("Can't decode value '%s'!\n", para.second.c_str());
+ top_parameters[RTLIL::escape_id(para.first)] = sig_value.as_const();
+ }
+
+ if (top_mod == nullptr && design->module(abstract_id))
+ top_mod = design->module(design->module(abstract_id)->derive(design, top_parameters));
+ else if (top_mod != nullptr && !top_parameters.empty())
+ top_mod = design->module(top_mod->derive(design, top_parameters));
+
+ if (top_mod != nullptr && top_mod->name != top_name) {
+ Module *m = top_mod->clone();
+ m->name = top_name;
+ Module *old_mod = design->module(top_name);
+ if (old_mod)
+ design->remove(old_mod);
+ design->add(m);
+ top_mod = m;
+ }
+ }
+
+ if (top_mod == nullptr && !load_top_mod.empty()) {
#ifdef YOSYS_ENABLE_VERIFIC
if (verific_import_pending) {
- verific_import(design, load_top_mod);
+ verific_import(design, parameters, load_top_mod);
top_mod = design->module(RTLIL::escape_id(load_top_mod));
}
#endif
@@ -745,7 +785,7 @@ struct HierarchyPass : public Pass {
} else {
#ifdef YOSYS_ENABLE_VERIFIC
if (verific_import_pending)
- verific_import(design);
+ verific_import(design, parameters);
#endif
}
@@ -846,7 +886,7 @@ struct HierarchyPass : public Pass {
std::map<RTLIL::Module*, bool> cache;
for (auto mod : design->modules())
if (set_keep_assert(cache, mod)) {
- log("Module %s directly or indirectly contains $assert cells -> setting \"keep\" attribute.\n", log_id(mod));
+ log("Module %s directly or indirectly contains formal properties -> setting \"keep\" attribute.\n", log_id(mod));
mod->set_bool_attribute("\\keep");
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 01:30:43 +0000