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gem5/util/tlm/main.cc
Abdul Mutaal Ahmad 1051223318 misc: Separate stats file for SystemC-gem5 co-simulation 
In previous versions of systemC-gem5 coupling statistics were not updated
for the systemc-gem5 simulation. systemC-gem5 simulation only need the
previously built config.ini file and normal gem5 simulation has to be run
once to generate config.ini file. Thus stats.txt inside the m5out folder is
redundant for systemC-gem5 simulation. A new stats file is now generated
with the all the statistics for systemC-gem5 simulation. This will also
resolve the stats issue in tlm-sysmtemC simulation.

Committed by Jason Lowe-Power <jason@lowepower.com>
2016-07-01 09:30:15 -05:00

332 lines
9.2 KiB
C++
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/*
* 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
* Abdul Mutaal Ahmad
*/
/**
* @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"
// Defining global string variable decalred in stats.hh
std::string filename;
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::enable();
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;
filename = "m5out/stats-tlm.txt";
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");
CxxConfig::statsDump();
return EXIT_SUCCESS;
}
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