tests/configs/rubytest-ruby.py

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

m5.util.addToPath("../configs/")

from ruby import Ruby
from common import Options

parser = argparse.ArgumentParser()
Options.addNoISAOptions(parser)

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

args = parser.parse_args()

#
# Set the default cache size and associativity to be very small to encourage
# races between requests and writebacks.
#
args.l1d_size = "256B"
args.l1i_size = "256B"
args.l2_size = "512B"
args.l3_size = "1kB"
args.l1d_assoc = 2
args.l1i_assoc = 2
args.l2_assoc = 2
args.l3_assoc = 2
args.ports = 32

# 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=args.num_cpus,
)

# We set the testers as cpu for ruby to find the correct clock domains
# for the L1 Objects.
system = System(cpu=tester)

# Dummy voltage domain for all our clock domains
system.voltage_domain = VoltageDomain(voltage=args.sys_voltage)
system.clk_domain = SrcClockDomain(
    clock="1GHz", voltage_domain=system.voltage_domain
)

system.mem_ranges = AddrRange("256MB")

# the ruby tester reuses num_cpus to specify the
# number of cpu ports connected to the tester object, which
# is stored in system.cpu. because there is only ever one
# tester object, num_cpus is not necessarily equal to the
# size of system.cpu
cpu_list = [system.cpu] * args.num_cpus
Ruby.create_system(args, False, system, cpus=cpu_list)

# Create a separate clock domain for Ruby
system.ruby.clk_domain = SrcClockDomain(
    clock="1GHz", voltage_domain=system.voltage_domain
)

assert args.num_cpus == len(system.ruby._cpu_ports)

tester.num_cpus = len(system.ruby._cpu_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_ports:
    #
    # Tie the ruby tester ports to the ruby cpu read and write ports
    #
    if ruby_port.support_data_reqs and ruby_port.support_inst_reqs:
        tester.cpuInstDataPort = ruby_port.in_ports
    elif ruby_port.support_data_reqs:
        tester.cpuDataPort = ruby_port.in_ports
    elif ruby_port.support_inst_reqs:
        tester.cpuInstPort = ruby_port.in_ports

    # Do not automatically retry stalled Ruby requests
    ruby_port.no_retry_on_stall = True

    #
    # 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"