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Diffstat (limited to 'util/tlm/main.cc')
-rw-r--r-- | util/tlm/main.cc | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/util/tlm/main.cc b/util/tlm/main.cc new file mode 100644 index 000000000..517e4ad43 --- /dev/null +++ b/util/tlm/main.cc @@ -0,0 +1,323 @@ +/* + * Copyright (c) 2015, University of Kaiserslautern + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER + * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Matthias Jung + */ + +/** + * @file + * + * Example top level file for SystemC-TLM integration with C++-only + * instantiation. + * + */ + +#include <tlm_utils/simple_target_socket.h> + +#include <cstdlib> +#include <iomanip> +#include <iostream> +#include <sstream> +#include <systemc> +#include <tlm> +#include <typeinfo> + +#include "base/statistics.hh" +#include "base/str.hh" +#include "base/trace.hh" +#include "cpu/base.hh" +#include "sc_logger.hh" +#include "sc_module.hh" +#include "sc_port.hh" +#include "sc_target.hh" +#include "sim/cxx_config_ini.hh" +#include "sim/cxx_manager.hh" +#include "sim/init_signals.hh" +#include "sim/serialize.hh" +#include "sim/simulate.hh" +#include "sim/stat_control.hh" +#include "sim/system.hh" +#include "stats.hh" + +void usage(const std::string &prog_name) +{ + std::cerr << "Usage: " << prog_name << ( + " <config_file.ini> [ <option> ]\n\n" + "OPTIONS:\n" + + " -o <offset> -- set memory offset\n" + " -p <object> <param> <value> -- set a parameter\n" + " -v <object> <param> <values> -- set a vector parameter from a\n" + " comma separated values string\n" + " -d <flag> -- set a debug flag\n" + " (-<flag> clear a flag)\n" + " -D -- debug on\n" + " -e <ticks> -- end of simulation after a \n" + " given number of ticks\n" + "\n" + ); + std::exit(EXIT_FAILURE); +} + +class SimControl : public Gem5SystemC::Module +{ + protected: + int argc; + char **argv; + CxxConfigManager *config_manager; + Gem5SystemC::Logger logger; + + Tick sim_end; + bool debug; + unsigned int offset; + + public: + SC_HAS_PROCESS(SimControl); + + SimControl(sc_core::sc_module_name name, int argc_, char **argv_); + + void before_end_of_elaboration(); + + bool getDebugFlag() { return debug; } + + unsigned int getOffset() { return offset; } + + void run(); +}; + +SimControl::SimControl(sc_core::sc_module_name name, + int argc_, + char **argv_) : Gem5SystemC::Module(name), + argc(argc_), + argv(argv_) +{ + SC_THREAD(run); + + std::string prog_name(argv[0]); + unsigned int arg_ptr = 1; + + if (argc == 1) { + usage(prog_name); + } + + cxxConfigInit(); + Gem5SystemC::registerSCPorts(); + + Trace::setDebugLogger(&logger); + + Gem5SystemC::setTickFrequency(); + sc_core::sc_set_time_resolution(1, sc_core::SC_PS); + + Gem5SystemC::Module::setupEventQueues(*this); + initSignals(); + + Stats::initSimStats(); + Stats::registerHandlers(CxxConfig::statsReset, CxxConfig::statsDump); + + Trace::enabled = true; + + sim_end = 0; + debug = false; + offset = 0; + + const std::string config_file(argv[arg_ptr]); + + CxxConfigFileBase *conf = new CxxIniFile(); + + if (!conf->load(config_file.c_str())) { + std::cerr << "Can't open config file: " << config_file << '\n'; + std::exit(EXIT_FAILURE); + } + arg_ptr++; + + config_manager = new CxxConfigManager(*conf); + + try { + while (arg_ptr < argc) { + std::string option(argv[arg_ptr]); + arg_ptr++; + unsigned num_args = argc - arg_ptr; + + if (option == "-p") { + if (num_args < 3) { + usage(prog_name); + } + + config_manager->setParam(argv[arg_ptr], argv[arg_ptr + 1], + argv[arg_ptr + 2]); + arg_ptr += 3; + } else if (option == "-v") { + std::vector<std::string> values; + + if (num_args < 3) { + usage(prog_name); + } + tokenize(values, argv[2], ','); + config_manager->setParamVector(argv[arg_ptr], + argv[arg_ptr], + values); + arg_ptr += 3; + } else if (option == "-d") { + if (num_args < 1) { + usage(prog_name); + } + if (argv[arg_ptr][0] == '-') { + clearDebugFlag(argv[arg_ptr] + 1); + } else { + setDebugFlag(argv[arg_ptr]); + } + arg_ptr++; + } else if (option == "-e") { + if (num_args < 1) { + usage(prog_name); + } + std::istringstream(argv[arg_ptr]) >> sim_end; + arg_ptr++; + } else if (option == "-D") { + debug = true; + } else if (option == "-o") { + if (num_args < 1) { + usage(prog_name); + } + std::istringstream(argv[arg_ptr]) >> offset; + arg_ptr++; + /* code */ + } else { + usage(prog_name); + } + } + } catch (CxxConfigManager::Exception &e) { + std::cerr << e.name << ": " << e.message << "\n"; + std::exit(EXIT_FAILURE); + } + + CxxConfig::statsEnable(); + getEventQueue(0)->dump(); + + try { + config_manager->instantiate(); + } catch (CxxConfigManager::Exception &e) { + std::cerr << "Config problem in sim object " + << e.name << ": " << e.message << "\n"; + std::exit(EXIT_FAILURE); + } +} + +void +SimControl::before_end_of_elaboration() +{ + try { + config_manager->initState(); + config_manager->startup(); + } catch (CxxConfigManager::Exception &e) { + std::cerr << "Config problem in sim object " + << e.name << ": " << e.message << "\n"; + std::exit(EXIT_FAILURE); + } +} + +void +SimControl::run() +{ + GlobalSimLoopExitEvent *exit_event = NULL; + + if(sim_end == 0) { + exit_event = simulate(); + } else { + exit_event = simulate(sim_end); + } + + std::cerr << "Exit at tick " << curTick() + << ", cause: " << exit_event->getCause() << '\n'; + + getEventQueue(0)->dump(); + +#if TRY_CLEAN_DELETE + config_manager->deleteObjects(); +#endif +} + + +void +reportHandler(const sc_core::sc_report &report, + const sc_core::sc_actions &actions) +{ + uint64_t systemc_time = report.get_time().value(); + uint64_t gem5_time = curTick(); + + std::cerr << report.get_time(); + + if (gem5_time < systemc_time) { + std::cerr << " (<) "; + } else if (gem5_time > systemc_time) { + std::cerr << " (!) "; + } else { + std::cerr << " (=) "; + } + + std::cerr << ": " << report.get_msg_type() + << ' ' << report.get_msg() << '\n'; +} + + +int +sc_main(int argc, char **argv) +{ + sc_core::sc_report_handler::set_handler(reportHandler); + + SimControl sim_control("gem5", argc, argv); + Target *memory; + + tlm::tlm_initiator_socket <> *mem_port = + dynamic_cast<tlm::tlm_initiator_socket<> *>( + sc_core::sc_find_object("gem5.memory") + ); + + if (mem_port) { + SC_REPORT_INFO("sc_main", "Port Found"); + unsigned long long int size = 512*1024*1024ULL; + memory = new Target("memory", + sim_control.getDebugFlag(), + size, + sim_control.getOffset()); + + memory->socket.bind(*mem_port); + } else { + SC_REPORT_FATAL("sc_main", "Port Not Found"); + std::exit(EXIT_FAILURE); + } + + sc_core::sc_start(); + + SC_REPORT_INFO("sc_main", "End of Simulation"); + + return EXIT_SUCCESS; +} |