# 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

# 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)
addToPath(config_root+'/configs/common')
addToPath(config_root+'/configs/ruby')
addToPath(config_root+'/configs/topologies')

import Ruby
import Options

parser = optparse.OptionParser()
Options.addCommonOptions(parser)

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

(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

# Turn on flush check for the hammer protocol
check_flush = False
if buildEnv['PROTOCOL'] == 'MOESI_hammer':
    check_flush = True

#
# create the tester and system, including ruby
#
tester = RubyTester(check_flush = check_flush, checks_to_complete = 100,
                    wakeup_frequency = 10, num_cpus = options.num_cpus)

system = System(tester = tester, physmem = SimpleMemory(null = True))

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 the sequencer this is the ruby tester so that it
    # copies the subblock back to the checker
    #
    ruby_port.using_ruby_tester = True

# -----------------------
# 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')