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Diffstat (limited to 'util/tlm/src/sim_control.cc')
| -rw-r--r-- | util/tlm/src/sim_control.cc | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/util/tlm/src/sim_control.cc b/util/tlm/src/sim_control.cc new file mode 100644 index 000000000..a96daf2c8 --- /dev/null +++ b/util/tlm/src/sim_control.cc @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2015, University of Kaiserslautern + * Copyright (c) 2016, Dresden University of Technology (TU Dresden) + * 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 + * Abdul Mutaal Ahmad + * Christian Menard + */ + +/** + * @file + * + * Example top level file for SystemC-TLM integration with C++-only + * instantiation. + * + */ + +#include <systemc> +#include <tlm> + +#include "sc_master_port.hh" +#include "sc_slave_port.hh" +#include "sim/cxx_config_ini.hh" +#include "sim/init_signals.hh" +#include "sim/stat_control.hh" +#include "sim_control.hh" +#include "stats.hh" + +// Define global string variable decalred in stats.hh +std::string filename = "m5out/stats-systemc.txt"; + +namespace Gem5SystemC +{ + +Gem5SimControl* Gem5SimControl::instance = nullptr; + +Gem5SimControl::Gem5SimControl(sc_core::sc_module_name name, + const std::string& configFile, + uint64_t simulationEnd, + const std::string& gem5DebugFlags) + : Gem5SystemC::Module(name), + simulationEnd(simulationEnd) +{ + SC_THREAD(run); + + if (instance != nullptr) { + panic("Tried to instantiate Gem5SimControl more than once!\n"); + } + instance = this; + + cxxConfigInit(); + + // register the systemc slave and master port handler + ExternalSlave::registerHandler("tlm_slave", new SCSlavePortHandler(*this)); + ExternalMaster::registerHandler("tlm_master", + new SCMasterPortHandler(*this)); + + 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::enable(); + + CxxConfigFileBase* conf = new CxxIniFile(); + + if (configFile.empty()) { + std::cerr << "No gem5 config file specified!\n"; + std::exit(EXIT_FAILURE); + } + + if (!conf->load(configFile.c_str())) { + std::cerr << "Can't open config file: " << configFile << '\n'; + std::exit(EXIT_FAILURE); + } + + config_manager = new CxxConfigManager(*conf); + + // parse debug flags string and clear/set flags accordingly + std::stringstream ss; + ss.str(gem5DebugFlags); + std::string flag; + while (std::getline(ss, flag, ' ')) { + if (flag.at(0) == '-') { + flag.erase(0, 1); // remove the '-' + clearDebugFlag(flag.c_str()); + } + else { + setDebugFlag(flag.c_str()); + } + } + + 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 +Gem5SimControl::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 +Gem5SimControl::run() +{ + // notify callback + beforeSimulate(); + + GlobalSimLoopExitEvent *exit_event = NULL; + + if (simulationEnd == 0) { + exit_event = simulate(); + } else { + exit_event = simulate(simulationEnd); + } + + std::cerr << "Exit at tick " << curTick() + << ", cause: " << exit_event->getCause() << '\n'; + + getEventQueue(0)->dump(); + + // notify callback + afterSimulate(); + +#if TRY_CLEAN_DELETE + config_manager->deleteObjects(); +#endif +} + +void +Gem5SimControl::registerSlavePort(const std::string& name, SCSlavePort* port) +{ + if (slavePorts.find(name) == slavePorts.end()) { + slavePorts[name] = port; + } else { + std::cerr << "Slave Port " << name << " is already registered!\n"; + std::exit(EXIT_FAILURE); + } +} + +void +Gem5SimControl::registerMasterPort(const std::string& name, SCMasterPort* port) +{ + if (masterPorts.find(name) == masterPorts.end()) { + masterPorts[name] = port; + } else { + std::cerr << "Master Port " << name << " is already registered!\n"; + std::exit(EXIT_FAILURE); + } +} + +SCSlavePort* +Gem5SimControl::getSlavePort(const std::string& name) +{ + if (slavePorts.find(name) == slavePorts.end()) { + std::cerr << "Slave Port " << name << " was not found!\n"; + std::exit(EXIT_FAILURE); + } + + return slavePorts.at(name); +} + +SCMasterPort* +Gem5SimControl::getMasterPort(const std::string& name) +{ + if (masterPorts.find(name) == masterPorts.end()) { + std::cerr << "Master Port " << name << " was not found!\n"; + std::exit(EXIT_FAILURE); + } + + return masterPorts.at(name); +} + +} |