mirror of https://github.com/YosysHQ/yosys.git
368 lines
9.7 KiB
C++
368 lines
9.7 KiB
C++
/*
|
|
* yosys -- Yosys Open SYnthesis Suite
|
|
*
|
|
* Copyright (C) 2021 Cologne Chip AG <support@colognechip.com>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "kernel/register.h"
|
|
#include "kernel/celltypes.h"
|
|
#include "kernel/rtlil.h"
|
|
#include "kernel/log.h"
|
|
|
|
USING_YOSYS_NAMESPACE
|
|
PRIVATE_NAMESPACE_BEGIN
|
|
|
|
struct SynthGateMatePass : public ScriptPass
|
|
{
|
|
SynthGateMatePass() : ScriptPass("synth_gatemate", "synthesis for Cologne Chip GateMate FPGAs") { }
|
|
|
|
void help() override
|
|
{
|
|
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
|
|
log("\n");
|
|
log(" synth_gatemate [options]\n");
|
|
log("\n");
|
|
log("This command runs synthesis for Cologne Chip AG GateMate FPGAs.\n");
|
|
log("\n");
|
|
log(" -top <module>\n");
|
|
log(" use the specified module as top module.\n");
|
|
log("\n");
|
|
log(" -vlog <file>\n");
|
|
log(" write the design to the specified verilog file. Writing of an output\n");
|
|
log(" file is omitted if this parameter is not specified.\n");
|
|
log("\n");
|
|
log(" -json <file>\n");
|
|
log(" write the design to the specified JSON file. Writing of an output file\n");
|
|
log(" is omitted if this parameter is not specified.\n");
|
|
log("\n");
|
|
log(" -run <from_label>:<to_label>\n");
|
|
log(" only run the commands between the labels (see below). An empty\n");
|
|
log(" from label is synonymous to 'begin', and empty to label is\n");
|
|
log(" synonymous to the end of the command list.\n");
|
|
log("\n");
|
|
log(" -noflatten\n");
|
|
log(" do not flatten design before synthesis.\n");
|
|
log("\n");
|
|
log(" -nobram\n");
|
|
log(" do not use CC_BRAM_20K or CC_BRAM_40K cells in output netlist.\n");
|
|
log("\n");
|
|
log(" -noaddf\n");
|
|
log(" do not use CC_ADDF full adder cells in output netlist.\n");
|
|
log("\n");
|
|
log(" -nomult\n");
|
|
log(" do not use CC_MULT multiplier cells in output netlist.\n");
|
|
log("\n");
|
|
log(" -nomx8, -nomx4\n");
|
|
log(" do not use CC_MX{8,4} multiplexer cells in output netlist.\n");
|
|
log("\n");
|
|
log(" -luttree\n");
|
|
log(" use new LUT tree mapping approach (EXPERIMENTAL).\n");
|
|
log("\n");
|
|
log(" -dff\n");
|
|
log(" run 'abc' with -dff option\n");
|
|
log("\n");
|
|
log(" -retime\n");
|
|
log(" run 'abc' with '-dff -D 1' options\n");
|
|
log("\n");
|
|
log(" -noiopad\n");
|
|
log(" disable I/O buffer insertion (useful for hierarchical or \n");
|
|
log(" out-of-context flows).\n");
|
|
log("\n");
|
|
log(" -noclkbuf\n");
|
|
log(" disable automatic clock buffer insertion.\n");
|
|
log("\n");
|
|
log("The following commands are executed by this synthesis command:\n");
|
|
help_script();
|
|
log("\n");
|
|
}
|
|
|
|
string top_opt, vlog_file, json_file;
|
|
bool noflatten, nobram, noaddf, nomult, nomx4, nomx8, luttree, dff, retime, noiopad, noclkbuf;
|
|
|
|
void clear_flags() override
|
|
{
|
|
top_opt = "-auto-top";
|
|
vlog_file = "";
|
|
json_file = "";
|
|
noflatten = false;
|
|
nobram = false;
|
|
noaddf = false;
|
|
nomult = false;
|
|
nomx4 = false;
|
|
nomx8 = false;
|
|
luttree = false;
|
|
dff = false;
|
|
retime = false;
|
|
noiopad = false;
|
|
noclkbuf = false;
|
|
}
|
|
|
|
void execute(std::vector<std::string> args, RTLIL::Design *design) override
|
|
{
|
|
string run_from, run_to;
|
|
clear_flags();
|
|
|
|
size_t argidx;
|
|
for (argidx = 1; argidx < args.size(); argidx++)
|
|
{
|
|
if (args[argidx] == "-top" && argidx+1 < args.size()) {
|
|
top_opt = "-top " + args[++argidx];
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-vlog" && argidx+1 < args.size()) {
|
|
vlog_file = args[++argidx];
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-json" && argidx+1 < args.size()) {
|
|
json_file = args[++argidx];
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-run" && argidx+1 < args.size()) {
|
|
size_t pos = args[argidx+1].find(':');
|
|
if (pos == std::string::npos)
|
|
break;
|
|
run_from = args[++argidx].substr(0, pos);
|
|
run_to = args[argidx].substr(pos+1);
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-noflatten") {
|
|
noflatten = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-nobram") {
|
|
nobram = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-noaddf") {
|
|
noaddf = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-nomult") {
|
|
nomult = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-nomx4") {
|
|
nomx4 = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-nomx8") {
|
|
nomx8 = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-luttree") {
|
|
luttree = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-dff") {
|
|
dff = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-retime") {
|
|
retime = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-noiopad") {
|
|
noiopad = true;
|
|
continue;
|
|
}
|
|
if (args[argidx] == "-noclkbuf") {
|
|
noclkbuf = true;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
extra_args(args, argidx, design);
|
|
|
|
if (!design->full_selection()) {
|
|
log_cmd_error("This command only operates on fully selected designs!\n");
|
|
}
|
|
|
|
log_header(design, "Executing SYNTH_GATEMATE pass.\n");
|
|
log_push();
|
|
|
|
run_script(design, run_from, run_to);
|
|
|
|
log_pop();
|
|
}
|
|
|
|
void script() override
|
|
{
|
|
if (check_label("begin"))
|
|
{
|
|
run("read_verilog -lib -specify +/gatemate/cells_sim.v +/gatemate/cells_bb.v");
|
|
run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str()));
|
|
}
|
|
|
|
if (check_label("prepare"))
|
|
{
|
|
run("proc");
|
|
if (!noflatten) {
|
|
run("flatten");
|
|
}
|
|
run("tribuf -logic");
|
|
run("deminout");
|
|
run("opt_expr");
|
|
run("opt_clean");
|
|
run("check");
|
|
run("opt -nodffe -nosdff");
|
|
run("fsm");
|
|
run("opt");
|
|
run("wreduce");
|
|
run("peepopt");
|
|
run("opt_clean");
|
|
run("muxpack");
|
|
run("share");
|
|
run("techmap -map +/cmp2lut.v -D LUT_WIDTH=4");
|
|
run("opt_expr");
|
|
run("opt_clean");
|
|
}
|
|
|
|
if (check_label("map_mult", "(skip if '-nomult')") && !nomult)
|
|
{
|
|
run("techmap -map +/gatemate/mul_map.v");
|
|
}
|
|
|
|
if (check_label("coarse"))
|
|
{
|
|
run("alumacc");
|
|
run("opt");
|
|
run("memory -nomap");
|
|
run("opt_clean");
|
|
}
|
|
|
|
if (check_label("map_bram", "(skip if '-nobram')") && !nobram)
|
|
{
|
|
run("memory_libmap -lib +/gatemate/brams.txt");
|
|
run("techmap -map +/gatemate/brams_map.v");
|
|
}
|
|
|
|
if (check_label("map_ffram"))
|
|
{
|
|
run("opt -fast -mux_undef -undriven -fine");
|
|
run("memory_map");
|
|
run("opt -undriven -fine");
|
|
}
|
|
|
|
if (check_label("map_gates"))
|
|
{
|
|
std::string techmap_args = "";
|
|
if (!noaddf) {
|
|
techmap_args += " -map +/gatemate/arith_map.v";
|
|
}
|
|
run("techmap -map +/techmap.v " + techmap_args);
|
|
run("opt -fast");
|
|
if (retime) {
|
|
run("abc -dff -D 1", "(only if -retime)");
|
|
}
|
|
}
|
|
|
|
if (check_label("map_io", "(skip if '-noiopad')") && !noiopad)
|
|
{
|
|
run("iopadmap -bits "
|
|
"-inpad CC_IBUF Y:I "
|
|
"-outpad CC_OBUF A:O "
|
|
"-toutpad CC_TOBUF ~T:A:O "
|
|
"-tinoutpad CC_IOBUF ~T:Y:A:IO"
|
|
);
|
|
run("clean");
|
|
}
|
|
|
|
if (check_label("map_regs"))
|
|
{
|
|
run("opt_clean");
|
|
run("dfflegalize -cell $_DFFE_????_ 01 -cell $_DLATCH_???_ 01");
|
|
run("techmap -map +/gatemate/reg_map.v");
|
|
run("opt_expr -mux_undef");
|
|
run("simplemap");
|
|
run("opt_clean");
|
|
}
|
|
|
|
if (check_label("map_muxs"))
|
|
{
|
|
std::string muxcover_args;
|
|
if (!nomx4) {
|
|
muxcover_args += stringf(" -mux4");
|
|
}
|
|
if (!nomx8) {
|
|
muxcover_args += stringf(" -mux8");
|
|
}
|
|
run("muxcover " + muxcover_args);
|
|
run("opt -full");
|
|
run("simplemap");
|
|
run("techmap -map +/gatemate/mux_map.v");
|
|
}
|
|
|
|
if (check_label("map_luts"))
|
|
{
|
|
if (luttree || help_mode) {
|
|
std::string abc_args = " -genlib +/gatemate/lut_tree_cells.genlib";
|
|
if (dff) {
|
|
abc_args += " -dff";
|
|
}
|
|
run("abc " + abc_args, "(with -luttree)");
|
|
run("techmap -map +/gatemate/lut_tree_map.v", "(with -luttree)");
|
|
run("gatemate_foldinv", "(with -luttree)");
|
|
run("techmap -map +/gatemate/inv_map.v", "(with -luttree)");
|
|
}
|
|
if (!luttree || help_mode) {
|
|
std::string abc_args = " -dress -lut 4";
|
|
if (dff) {
|
|
abc_args += " -dff";
|
|
}
|
|
run("abc " + abc_args, "(without -luttree)");
|
|
}
|
|
run("clean");
|
|
}
|
|
|
|
if (check_label("map_cells"))
|
|
{
|
|
run("techmap -map +/gatemate/lut_map.v");
|
|
run("clean");
|
|
}
|
|
|
|
if (check_label("map_bufg", "(skip if '-noclkbuf')") && !noclkbuf)
|
|
{
|
|
run("clkbufmap -buf CC_BUFG O:I");
|
|
run("clean");
|
|
}
|
|
|
|
if (check_label("check"))
|
|
{
|
|
run("hierarchy -check");
|
|
run("stat -width");
|
|
run("check -noinit");
|
|
run("blackbox =A:whitebox");
|
|
}
|
|
|
|
if (check_label("vlog"))
|
|
{
|
|
run("opt_clean -purge");
|
|
if (!vlog_file.empty() || help_mode) {
|
|
run(stringf("write_verilog -noattr %s", help_mode ? "<file-name>" : vlog_file.c_str()));
|
|
}
|
|
}
|
|
|
|
if (check_label("json"))
|
|
{
|
|
if (!json_file.empty() || help_mode) {
|
|
run(stringf("write_json %s", help_mode ? "<file-name>" : json_file.c_str()));
|
|
}
|
|
}
|
|
}
|
|
} SynthGateMatePass;
|
|
|
|
PRIVATE_NAMESPACE_END
|