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

# Copyright (c) 2006-2007 The Regents of The University of Michigan
# All rights reserved.
#
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# neither the name of the copyright holders nor the names of its
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# this software without specific prior written permission.
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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')
addToPath(config_root+'/configs/ruby/protocols')
addToPath(config_root+'/configs/ruby/topologies')

import Ruby

parser = optparse.OptionParser()

#
# Set the default cache size and associativity to be very small to encourage
# races between requests and writebacks.
#
parser.add_option("--l1d_size", type="string", default="256B")
parser.add_option("--l1i_size", type="string", default="256B")
parser.add_option("--l2_size", type="string", default="512B")
parser.add_option("--l1d_assoc", type="int", default=2)
parser.add_option("--l1i_assoc", type="int", default=2)
parser.add_option("--l2_assoc", type="int", default=2)

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

(options, args) = parser.parse_args()

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

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

system.ruby = Ruby.create_system(options, system.physmem)

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')