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This commit is contained in:
Emil J. Tywoniak 2025-06-12 13:29:16 +02:00
parent aa5b7075cb
commit f75add5912
2 changed files with 110 additions and 32 deletions
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140
passes/cmds/sdc.cc
View file

@ -5,6 +5,7 @@
#include <tcl.h>
#include <list>
#include <regex>
#include <optional>
USING_YOSYS_NAMESPACE
@ -12,10 +13,11 @@ PRIVATE_NAMESPACE_BEGIN
struct SdcObjects {
enum GetterMode {
Simple,
Full
} mode;
enum CollectMode {
SimpleGetter,
FullGetter,
FullConstraint,
} collect_mode;
std::vector<std::string> design_ports;
std::vector<std::pair<std::string, Cell*>> design_cells;
std::vector<std::pair<std::string, Cell*>> design_pins;
@ -90,26 +92,26 @@ struct SdcObjects {
constrained_cells.sort();
constrained_pins.sort();
constrained_nets.sort();
log("Design ports:\n");
for (auto name : design_ports) {
log("\t%s\n", name.c_str());
}
log("Design cells:\n");
for (auto [name, cell] : design_cells) {
(void)cell;
log("\t%s\n", name.c_str());
}
log("Design pins:\n");
for (auto [name, pin] : design_pins) {
(void)pin;
log("\t%s\n", name.c_str());
}
log("Design nets:\n");
for (auto [name, net] : design_nets) {
(void)net;
log("\t%s\n", name.c_str());
}
log("\n");
// log("Design ports:\n");
// for (auto name : design_ports) {
// log("\t%s\n", name.c_str());
// }
// log("Design cells:\n");
// for (auto [name, cell] : design_cells) {
// (void)cell;
// log("\t%s\n", name.c_str());
// }
// log("Design pins:\n");
// for (auto [name, pin] : design_pins) {
// (void)pin;
// log("\t%s\n", name.c_str());
// }
// log("Design nets:\n");
// for (auto [name, net] : design_nets) {
// (void)net;
// log("\t%s\n", name.c_str());
// }
// log("\n");
log("Constrained ports:\n");
for (auto name : constrained_ports) {
log("\t%s\n", name.c_str());
@ -169,7 +171,6 @@ static bool matches(std::string name, const std::string& pat, const MatchConfig&
static int sdc_get_pins_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj* const objv[])
{
(void)interp;
auto* objects = (SdcObjects*)data;
// When this flag is present, the search for the pattern is made in all positions in the hierarchy.
bool hierarchical_flag = false;
@ -198,7 +199,7 @@ static int sdc_get_pins_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_O
for (; i < objc; i++) {
patterns.push_back(Tcl_GetString(objv[i]));
}
if (objects->mode == SdcObjects::GetterMode::Simple) {
if (objects->collect_mode == SdcObjects::CollectMode::SimpleGetter) {
if (regexp_flag || hierarchical_flag || nocase_flag || separator != "/" || of_objects) {
log_error("get_pins got unexpected flags in simple mode\n");
}
@ -210,7 +211,6 @@ static int sdc_get_pins_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_O
MatchConfig config(regexp_flag, nocase_flag, hierarchical_flag);
std::vector<std::pair<std::string, Cell*>> resolved;
for (auto pat : patterns) {
log("get_pins sniffs %s\n", pat.c_str());
bool found = false;
for (auto [name, pin] : objects->design_pins) {
if (matches(name, pat, config)) {
@ -224,7 +224,8 @@ static int sdc_get_pins_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_O
Tcl_Obj *result = Tcl_NewListObj(resolved.size(), nullptr);
for (auto obj : resolved) {
Tcl_ListObjAppendElement(interp, result, Tcl_NewStringObj(obj.first.c_str(), obj.first.size()));
objects->constrained_pins.insert(obj);
if (objects->collect_mode != SdcObjects::CollectMode::FullConstraint)
objects->constrained_pins.insert(obj);
}
if (separator != "/") {
@ -238,7 +239,6 @@ static int sdc_get_pins_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_O
static int sdc_get_ports_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj* const objv[])
{
(void)interp;
auto* objects = (SdcObjects*)data;
bool regexp_flag = false;
bool nocase_flag = false;
@ -253,7 +253,7 @@ static int sdc_get_ports_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_
for (; i < objc; i++) {
patterns.push_back(Tcl_GetString(objv[i]));
}
if (objects->mode == SdcObjects::GetterMode::Simple) {
if (objects->collect_mode == SdcObjects::CollectMode::SimpleGetter) {
if (regexp_flag || nocase_flag) {
log_error("get_ports got unexpected flags in simple mode\n");
}
@ -277,13 +277,89 @@ static int sdc_get_ports_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_
Tcl_Obj *result = Tcl_NewListObj(resolved.size(), nullptr);
for (auto obj : resolved) {
Tcl_ListObjAppendElement(interp, result, Tcl_NewStringObj(obj.c_str(), obj.size()));
objects->constrained_ports.insert(obj);
if (objects->collect_mode != SdcObjects::CollectMode::FullConstraint)
objects->constrained_ports.insert(obj);
}
Tcl_SetObjResult(interp, result);
return TCL_OK;
}
std::optional<std::tuple<std::string, std::string>> split_at(std::string s)
{
size_t pos = s.find('@');
if (pos == std::string::npos)
return std::nullopt;
return std::make_tuple(s.substr(0, pos), s.substr(pos + 1));
}
// Whether string or list of strings, apply op to each string
void apply_args(Tcl_Interp *interp, std::function<void(const char*)> op, Tcl_Obj* obj)
{
int length;
Tcl_Obj **value_list;
if (Tcl_ListObjGetElements(interp, obj, &length, &value_list) == TCL_OK) {
for (int i = 0; i < length; i++) {
op(Tcl_GetString(value_list[i]));
}
} else {
op(Tcl_GetString(obj));
}
}
static int ys_track_typed_key_cmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj* const objv[])
{
log("ys_track_typed_key_cmd\n");
auto* objects = (SdcObjects*)data;
if (objc != 5)
log_error("ys_track_typed_key: Unexpected number of arguments: %d (expected 5)\n", objc);
if (objects->collect_mode != SdcObjects::CollectMode::FullConstraint)
return TCL_OK;
std::string key_name = Tcl_GetString(objv[1]);
Tcl_Obj* key_value = objv[2];
std::string key_expect_type = Tcl_GetString(objv[3]);
std::string proc_name = Tcl_GetString(objv[4]);
auto track_typed = [key_expect_type, objects, proc_name, key_name](const char* str) -> void {
auto split = split_at(str);
if (!split)
log_error("%s: key %s should be a typed SDC object, but is something weird: %s\n",
proc_name.c_str(), key_name.c_str(), str);
if (key_expect_type == "pin") {
log("PIN! %s\n", str);
bool found = false;
for (auto [name, pin] : objects->design_pins) {
if (name + "/" + pin->name.str() == str) {
found = true;
objects->constrained_pins.insert(std::make_pair(name, pin));
break; // resolved, expected unique
}
}
if (!found)
log_error("%s: pin %s not found\n", proc_name.c_str(), str);
} else if (key_expect_type == "port") {
bool found = false;
for (auto name : objects->design_ports) {
if (name == str) {
found = true;
objects->constrained_ports.insert(name);
break; // resolved, expected unique
}
}
if (!found)
log_error("%s: port %s not found\n", proc_name.c_str(), str);
} else {
// TODO
log_warning("%s: unsupported type %s\n", proc_name.c_str(), key_expect_type.c_str());
}
};
apply_args(interp, track_typed, key_value);
return TCL_OK;
}
class SDCInterpreter
{
@ -308,8 +384,10 @@ public:
log_error("Tcl_Init() call failed - %s\n",Tcl_ErrnoMsg(Tcl_GetErrno()));
objects = std::make_unique<SdcObjects>(design);
objects->collect_mode = SdcObjects::CollectMode::FullConstraint;
Tcl_CreateObjCommand(interp, "get_pins", sdc_get_pins_cmd, (ClientData) objects.get(), NULL);
Tcl_CreateObjCommand(interp, "get_ports", sdc_get_ports_cmd, (ClientData) objects.get(), NULL);
Tcl_CreateObjCommand(interp, "ys_track_typed_key", ys_track_typed_key_cmd, (ClientData) objects.get(), NULL);
return interp;
}
};

2
passes/cmds/stubs.sdc
View file

@ -15,7 +15,7 @@ proc get_clocks {args} {
}
stub current_design
stub ys_track_typed_key
#stub ys_track_typed_key
stub ys_track_untyped_key
stub ys_err_key
stub ys_err_flag