# Copyright (c) 2012 Mark D. Hill and David A. Wood
# 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
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Authors: Nilay Vaish

import m5, os, optparse, sys
from m5.objects import *
m5.util.addToPath('../configs/')
from common.Benchmarks import SysConfig
from common import FSConfig
from ruby import Ruby
from common import Options

# Add the ruby specific and protocol specific options
parser = optparse.OptionParser()
Options.addCommonOptions(parser)
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="32kB"
options.l1i_size="32kB"
options.l2_size="4MB"
options.l1d_assoc=2
options.l1i_assoc=2
options.l2_assoc=2
options.num_cpus = 2

#the system
mdesc = SysConfig(disk = 'linux-x86.img')
system = FSConfig.makeLinuxX86System('timing', options.num_cpus,
                                     mdesc=mdesc, Ruby=True)
# Dummy voltage domain for all our clock domains
system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)

system.kernel = FSConfig.binary('x86_64-vmlinux-2.6.22.9.smp')
system.clk_domain = SrcClockDomain(clock = '1GHz',
                                   voltage_domain = system.voltage_domain)
system.cpu_clk_domain = SrcClockDomain(clock = '2GHz',
                                       voltage_domain = system.voltage_domain)
system.cpu = [TimingSimpleCPU(cpu_id=i, clk_domain = system.cpu_clk_domain)
              for i in xrange(options.num_cpus)]

Ruby.create_system(options, True, system, system.iobus, system._dma_ports)

# Create a seperate clock domain for Ruby
system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
                                        voltage_domain = system.voltage_domain)

# Connect the ruby io port to the PIO bus,
# assuming that there is just one such port.
system.iobus.master = system.ruby._io_port.slave

for (i, cpu) in enumerate(system.cpu):
    # create the interrupt controller
    cpu.createInterruptController()
    # Tie the cpu ports to the correct ruby system ports
    cpu.icache_port = system.ruby._cpu_ports[i].slave
    cpu.dcache_port = system.ruby._cpu_ports[i].slave
    cpu.itb.walker.port = system.ruby._cpu_ports[i].slave
    cpu.dtb.walker.port = system.ruby._cpu_ports[i].slave

    cpu.interrupts[0].pio = system.ruby._cpu_ports[i].master
    cpu.interrupts[0].int_master = system.ruby._cpu_ports[i].slave
    cpu.interrupts[0].int_slave = system.ruby._cpu_ports[i].master

root = Root(full_system = True, system = system)
m5.ticks.setGlobalFrequency('1THz')