from __future__ import print_function from __future__ import absolute_import import sys import argparse import subprocess from pprint import pprint import m5 from m5.objects import * from m5.util import * addToPath('../') from common import MemConfig from common import HMC def add_options(parser): parser.add_argument("--external-memory-system", default=0, action="store", type=int, help="External memory system") # TLM related options, currently optional in configs/common/MemConfig.py parser.add_argument("--tlm-memory", action="store_true", help="use\ external port for SystemC TLM co-simulation. Default:\ no") # Elastic traces related options, currently optional in # configs/common/MemConfig.py parser.add_argument("--elastic-trace-en", action="store_true", help="enable capture of data dependency and\ instruction fetch traces using elastic trace\ probe.\nDefault: no") # Options related to traffic generation parser.add_argument("--num-tgen", default=4, action="store", type=int, choices=[4], help="number of traffic generators.\ Right now this script supports only 4.\nDefault: 4") parser.add_argument("--tgen-cfg-file", default="./configs/example/hmc_tgen.cfg", type=str, help="Traffic generator(s) configuration\ file. Note: this script uses the same configuration\ file for all traffic generators") # considering 4GB HMC device with following parameters # hmc_device_size = '4GB' # hmc_vault_size = '256MB' # hmc_stack_size = 8 # hmc_bank_in_stack = 2 # hmc_bank_size = '16MB' # hmc_bank_in_vault = 16 def build_system(options): # create the system we are going to simulate system = System() # use timing mode for the interaction between master-slave ports system.mem_mode = 'timing' # set the clock fequency of the system clk = '100GHz' vd = VoltageDomain(voltage='1V') system.clk_domain = SrcClockDomain(clock=clk, voltage_domain=vd) # add traffic generators to the system system.tgen = [TrafficGen(config_file=options.tgen_cfg_file) for i in range(options.num_tgen)] # Config memory system with given HMC arch MemConfig.config_mem(options, system) # Connect the traffic generatiors if options.arch == "distributed": for i in range(options.num_tgen): system.tgen[i].port = system.membus.slave # connect the system port even if it is not used in this example system.system_port = system.membus.slave if options.arch == "mixed": for i in range(int(options.num_tgen/2)): system.tgen[i].port = system.membus.slave hh = system.hmc_host if options.enable_global_monitor: system.tgen[2].port = hh.lmonitor[2].slave hh.lmonitor[2].master = hh.seriallink[2].slave system.tgen[3].port = hh.lmonitor[3].slave hh.lmonitor[3].master = hh.seriallink[3].slave else: system.tgen[2].port = hh.seriallink[2].slave system.tgen[3].port = hh.seriallink[3].slave # connect the system port even if it is not used in this example system.system_port = system.membus.slave if options.arch == "same": hh = system.hmc_host for i in range(options.num_links_controllers): if options.enable_global_monitor: system.tgen[i].port = hh.lmonitor[i].slave else: system.tgen[i].port = hh.seriallink[i].slave # set up the root SimObject root = Root(full_system=False, system=system) return root def main(): parser = argparse.ArgumentParser(description="Simple system using HMC as\ main memory") HMC.add_options(parser) add_options(parser) options = parser.parse_args() # build the system root = build_system(options) # instantiate all of the objects we've created so far m5.instantiate() print("Beginning simulation!") event = m5.simulate(10000000000) m5.stats.dump() print('Exiting @ tick %i because %s (exit code is %i)' % (m5.curTick(), event.getCause(), event.getCode())) print("Done") if __name__ == "__m5_main__": main()