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# Copyright (c) 2006-2007 The Regents of The University of Michigan
# Copyright (c) 2009 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# 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;
# neither the name of the copyright holders 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
# OWNER 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: Ron Dreslinski
# Brad Beckmann
import m5
from m5.objects import *
from m5.defines import buildEnv
from m5.util import addToPath
import os, optparse, sys
addToPath('../common')
addToPath('../ruby')
addToPath('../topologies')
import Options
import Ruby
# Get paths we might need. It's expected this file is in m5/configs/example.
config_path = os.path.dirname(os.path.abspath(__file__))
config_root = os.path.dirname(config_path)
m5_root = os.path.dirname(config_root)
parser = optparse.OptionParser()
Options.addCommonOptions(parser)
parser.add_option("-l", "--checks", metavar="N", default=100,
help="Stop after N checks (loads)")
parser.add_option("-f", "--wakeup_freq", metavar="N", default=10,
help="Wakeup every N cycles")
#
# Add the ruby specific and protocol specific options
#
Ruby.define_options(parser)
execfile(os.path.join(config_root, "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
if args:
print "Error: script doesn't take any positional arguments"
sys.exit(1)
#
# Create the ruby random tester
#
# Check the protocol
check_flush = False
if buildEnv['PROTOCOL'] == 'MOESI_hammer':
check_flush = True
tester = RubyTester(check_flush = check_flush,
checks_to_complete = options.checks,
wakeup_frequency = options.wakeup_freq,
num_cpus = options.num_cpus)
#
# Create the M5 system. Note that the Memory Object isn't
# actually used by the rubytester, but is included to support the
# M5 memory size == Ruby memory size checks
#
system = System(tester = tester, physmem = SimpleMemory())
Ruby.create_system(options, system)
assert(options.num_cpus == len(system.ruby._cpu_ruby_ports))
#
# The tester is most effective when randomization is turned on and
# artifical delay is randomly inserted on messages
#
system.ruby.randomization = True
for ruby_port in system.ruby._cpu_ruby_ports:
#
# Tie the ruby tester ports to the ruby cpu read and write ports
#
if ruby_port.support_data_reqs:
tester.cpuDataPort = ruby_port.slave
if ruby_port.support_inst_reqs:
tester.cpuInstPort = ruby_port.slave
#
# Tell each sequencer this is the ruby tester so that it
# copies the subblock back to the checker
#
ruby_port.using_ruby_tester = True
#
# Ruby doesn't need the backing image of memory when running with
# the tester.
#
ruby_port.access_phys_mem = False
# -----------------------
# run simulation
# -----------------------
root = Root( full_system = False, system = system )
root.system.mem_mode = 'timing'
# Not much point in this being higher than the L1 latency
m5.ticks.setGlobalFrequency('1ns')
# instantiate configuration
m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(options.maxtick)
print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
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