gem5/tests/configs/simple-timing-ruby.py

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Authors: Steve Reinhardt

import m5
from m5.objects import *
from m5.defines import buildEnv
from m5.util import addToPath
import os, optparse, sys

if buildEnv['FULL_SYSTEM']:
    panic("This script requires system-emulation mode (*_SE).")

# Get paths we might need
config_path = os.path.dirname(os.path.abspath(__file__))
config_root = os.path.dirname(config_path)
m5_root = os.path.dirname(config_root)
addToPath(config_root+'/configs/common')
addToPath(config_root+'/configs/ruby')

import Ruby

parser = optparse.OptionParser()

#
# Add the ruby specific and protocol specific options
#
Ruby.define_options(parser)

execfile(os.path.join(config_root, "configs/common", "Options.py"))

(options, args) = parser.parse_args()

#
# Set the default cache size and associativity to be very small to encourage
# races between requests and writebacks.
#
options.l1d_size="256B"
options.l1i_size="256B"
options.l2_size="512B"
options.l3_size="1kB"
options.l1d_assoc=2
options.l1i_assoc=2
options.l2_assoc=2
options.l3_assoc=2

# this is a uniprocessor only test
options.num_cpus = 1

cpu = TimingSimpleCPU(cpu_id=0)
system = System(cpu = cpu, physmem = PhysicalMemory())

Ruby.create_system(options, system)

assert(len(system.ruby._cpu_ruby_ports) == 1)

#
# Tie the cpu cache ports to the ruby cpu ports and
# physmem, respectively
#
cpu.icache_port = system.ruby._cpu_ruby_ports[0].port
cpu.dcache_port = system.ruby._cpu_ruby_ports[0].port

# -----------------------
# run simulation
# -----------------------

root = Root(system = system)
root.system.mem_mode = 'timing'

# Not much point in this being higher than the L1 latency
m5.ticks.setGlobalFrequency('1ns')