ruby_random_test.py revision 11266
1# Copyright (c) 2006-2007 The Regents of The University of Michigan 2# Copyright (c) 2009 Advanced Micro Devices, Inc. 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27# 28# Authors: Ron Dreslinski 29# Brad Beckmann 30 31import m5 32from m5.objects import * 33from m5.defines import buildEnv 34from m5.util import addToPath 35import os, optparse, sys 36addToPath('../common') 37addToPath('../ruby') 38addToPath('../topologies') 39 40import Options 41import Ruby 42 43# Get paths we might need. It's expected this file is in m5/configs/example. 44config_path = os.path.dirname(os.path.abspath(__file__)) 45config_root = os.path.dirname(config_path) 46m5_root = os.path.dirname(config_root) 47 48parser = optparse.OptionParser() 49Options.addCommonOptions(parser) 50 51parser.add_option("--maxloads", metavar="N", default=100, 52 help="Stop after N loads") 53parser.add_option("-f", "--wakeup_freq", metavar="N", default=10, 54 help="Wakeup every N cycles") 55 56# 57# Add the ruby specific and protocol specific options 58# 59Ruby.define_options(parser) 60 61execfile(os.path.join(config_root, "common", "Options.py")) 62 63(options, args) = parser.parse_args() 64 65# 66# Set the default cache size and associativity to be very small to encourage 67# races between requests and writebacks. 68# 69options.l1d_size="256B" 70options.l1i_size="256B" 71options.l2_size="512B" 72options.l3_size="1kB" 73options.l1d_assoc=2 74options.l1i_assoc=2 75options.l2_assoc=2 76options.l3_assoc=2 77 78if args: 79 print "Error: script doesn't take any positional arguments" 80 sys.exit(1) 81 82# 83# Create the ruby random tester 84# 85 86# Check the protocol 87check_flush = False 88if buildEnv['PROTOCOL'] == 'MOESI_hammer': 89 check_flush = True 90 91tester = RubyTester(check_flush = check_flush, 92 checks_to_complete = options.maxloads, 93 wakeup_frequency = options.wakeup_freq) 94 95# 96# Create the M5 system. Note that the Memory Object isn't 97# actually used by the rubytester, but is included to support the 98# M5 memory size == Ruby memory size checks 99# 100system = System(cpu = tester, mem_ranges = [AddrRange(options.mem_size)]) 101 102# Create a top-level voltage domain and clock domain 103system.voltage_domain = VoltageDomain(voltage = options.sys_voltage) 104 105system.clk_domain = SrcClockDomain(clock = options.sys_clock, 106 voltage_domain = system.voltage_domain) 107 108Ruby.create_system(options, False, system) 109 110# Create a seperate clock domain for Ruby 111system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock, 112 voltage_domain = system.voltage_domain) 113 114assert(options.num_cpus == len(system.ruby._cpu_ports)) 115 116tester.num_cpus = len(system.ruby._cpu_ports) 117 118# 119# The tester is most effective when randomization is turned on and 120# artifical delay is randomly inserted on messages 121# 122system.ruby.randomization = True 123 124for ruby_port in system.ruby._cpu_ports: 125 # 126 # Tie the ruby tester ports to the ruby cpu read and write ports 127 # 128 if ruby_port.support_data_reqs and ruby_port.support_inst_reqs: 129 tester.cpuInstDataPort = ruby_port.slave 130 elif ruby_port.support_data_reqs: 131 tester.cpuDataPort = ruby_port.slave 132 elif ruby_port.support_inst_reqs: 133 tester.cpuInstPort = ruby_port.slave 134 135 # Do not automatically retry stalled Ruby requests 136 ruby_port.no_retry_on_stall = True 137 138 # 139 # Tell each sequencer this is the ruby tester so that it 140 # copies the subblock back to the checker 141 # 142 ruby_port.using_ruby_tester = True 143 144# ----------------------- 145# run simulation 146# ----------------------- 147 148root = Root( full_system = False, system = system ) 149root.system.mem_mode = 'timing' 150 151# Not much point in this being higher than the L1 latency 152m5.ticks.setGlobalFrequency('1ns') 153 154# instantiate configuration 155m5.instantiate() 156 157# simulate until program terminates 158exit_event = m5.simulate(options.abs_max_tick) 159 160print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause() 161