ruby_mem_test.py revision 8931
17635SBrad.Beckmann@amd.com# Copyright (c) 2006-2007 The Regents of The University of Michigan 27635SBrad.Beckmann@amd.com# Copyright (c) 2009 Advanced Micro Devices, Inc. 37635SBrad.Beckmann@amd.com# All rights reserved. 47635SBrad.Beckmann@amd.com# 57635SBrad.Beckmann@amd.com# Redistribution and use in source and binary forms, with or without 67635SBrad.Beckmann@amd.com# modification, are permitted provided that the following conditions are 77635SBrad.Beckmann@amd.com# met: redistributions of source code must retain the above copyright 87635SBrad.Beckmann@amd.com# notice, this list of conditions and the following disclaimer; 97635SBrad.Beckmann@amd.com# redistributions in binary form must reproduce the above copyright 107635SBrad.Beckmann@amd.com# notice, this list of conditions and the following disclaimer in the 117635SBrad.Beckmann@amd.com# documentation and/or other materials provided with the distribution; 127635SBrad.Beckmann@amd.com# neither the name of the copyright holders nor the names of its 137635SBrad.Beckmann@amd.com# contributors may be used to endorse or promote products derived from 147635SBrad.Beckmann@amd.com# this software without specific prior written permission. 157635SBrad.Beckmann@amd.com# 167635SBrad.Beckmann@amd.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 177635SBrad.Beckmann@amd.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 187635SBrad.Beckmann@amd.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 197635SBrad.Beckmann@amd.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 207635SBrad.Beckmann@amd.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 217635SBrad.Beckmann@amd.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 227635SBrad.Beckmann@amd.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 237635SBrad.Beckmann@amd.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 247635SBrad.Beckmann@amd.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 257635SBrad.Beckmann@amd.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 267635SBrad.Beckmann@amd.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 277635SBrad.Beckmann@amd.com# 287635SBrad.Beckmann@amd.com# Authors: Ron Dreslinski 297635SBrad.Beckmann@amd.com# Brad Beckmann 307635SBrad.Beckmann@amd.com 317635SBrad.Beckmann@amd.comimport m5 327635SBrad.Beckmann@amd.comfrom m5.objects import * 337635SBrad.Beckmann@amd.comfrom m5.defines import buildEnv 347635SBrad.Beckmann@amd.comfrom m5.util import addToPath 357635SBrad.Beckmann@amd.comimport os, optparse, sys 367635SBrad.Beckmann@amd.comaddToPath('../common') 377635SBrad.Beckmann@amd.comaddToPath('../ruby') 387635SBrad.Beckmann@amd.com 398928Sandreas.hansson@arm.comimport Options 407635SBrad.Beckmann@amd.comimport Ruby 417635SBrad.Beckmann@amd.com 427635SBrad.Beckmann@amd.com# Get paths we might need. It's expected this file is in m5/configs/example. 437635SBrad.Beckmann@amd.comconfig_path = os.path.dirname(os.path.abspath(__file__)) 447635SBrad.Beckmann@amd.comconfig_root = os.path.dirname(config_path) 457635SBrad.Beckmann@amd.comm5_root = os.path.dirname(config_root) 467635SBrad.Beckmann@amd.com 477635SBrad.Beckmann@amd.comparser = optparse.OptionParser() 488928Sandreas.hansson@arm.comOptions.addCommonOptions(parser) 497635SBrad.Beckmann@amd.com 507635SBrad.Beckmann@amd.comparser.add_option("-l", "--maxloads", metavar="N", default=0, 517635SBrad.Beckmann@amd.com help="Stop after N loads") 527635SBrad.Beckmann@amd.comparser.add_option("--progress", type="int", default=1000, 537635SBrad.Beckmann@amd.com metavar="NLOADS", 547635SBrad.Beckmann@amd.com help="Progress message interval " 557635SBrad.Beckmann@amd.com "[default: %default]") 567635SBrad.Beckmann@amd.comparser.add_option("--num-dmas", type="int", default=0, help="# of dma testers") 578436SBrad.Beckmann@amd.comparser.add_option("--functional", type="int", default=0, 588436SBrad.Beckmann@amd.com help="percentage of accesses that should be functional") 598436SBrad.Beckmann@amd.comparser.add_option("--suppress-func-warnings", action="store_true", 608436SBrad.Beckmann@amd.com help="suppress warnings when functional accesses fail") 617635SBrad.Beckmann@amd.com 627635SBrad.Beckmann@amd.com# 637635SBrad.Beckmann@amd.com# Add the ruby specific and protocol specific options 647635SBrad.Beckmann@amd.com# 657635SBrad.Beckmann@amd.comRuby.define_options(parser) 667635SBrad.Beckmann@amd.com 677635SBrad.Beckmann@amd.comexecfile(os.path.join(config_root, "common", "Options.py")) 687635SBrad.Beckmann@amd.com 697635SBrad.Beckmann@amd.com(options, args) = parser.parse_args() 707635SBrad.Beckmann@amd.com 717635SBrad.Beckmann@amd.com# 727635SBrad.Beckmann@amd.com# Set the default cache size and associativity to be very small to encourage 737635SBrad.Beckmann@amd.com# races between requests and writebacks. 747635SBrad.Beckmann@amd.com# 757635SBrad.Beckmann@amd.comoptions.l1d_size="256B" 767635SBrad.Beckmann@amd.comoptions.l1i_size="256B" 777635SBrad.Beckmann@amd.comoptions.l2_size="512B" 787635SBrad.Beckmann@amd.comoptions.l3_size="1kB" 797635SBrad.Beckmann@amd.comoptions.l1d_assoc=2 807635SBrad.Beckmann@amd.comoptions.l1i_assoc=2 817635SBrad.Beckmann@amd.comoptions.l2_assoc=2 827635SBrad.Beckmann@amd.comoptions.l3_assoc=2 837635SBrad.Beckmann@amd.com 847635SBrad.Beckmann@amd.comif args: 857635SBrad.Beckmann@amd.com print "Error: script doesn't take any positional arguments" 867635SBrad.Beckmann@amd.com sys.exit(1) 877635SBrad.Beckmann@amd.com 887635SBrad.Beckmann@amd.comblock_size = 64 897635SBrad.Beckmann@amd.com 907635SBrad.Beckmann@amd.comif options.num_cpus > block_size: 917635SBrad.Beckmann@amd.com print "Error: Number of testers %d limited to %d because of false sharing" \ 927635SBrad.Beckmann@amd.com % (options.num_cpus, block_size) 937635SBrad.Beckmann@amd.com sys.exit(1) 947635SBrad.Beckmann@amd.com 957635SBrad.Beckmann@amd.com# 968436SBrad.Beckmann@amd.com# Currently ruby does not support atomic or uncacheable accesses 977635SBrad.Beckmann@amd.com# 988437SBrad.Beckmann@amd.comcpus = [ MemTest(atomic = False, 998437SBrad.Beckmann@amd.com max_loads = options.maxloads, 1008437SBrad.Beckmann@amd.com issue_dmas = False, 1018437SBrad.Beckmann@amd.com percent_functional = options.functional, 1028437SBrad.Beckmann@amd.com percent_uncacheable = 0, 1038437SBrad.Beckmann@amd.com progress_interval = options.progress, 1048436SBrad.Beckmann@amd.com suppress_func_warnings = options.suppress_func_warnings) \ 1057635SBrad.Beckmann@amd.com for i in xrange(options.num_cpus) ] 1067635SBrad.Beckmann@amd.com 1077635SBrad.Beckmann@amd.comsystem = System(cpu = cpus, 1088931Sandreas.hansson@arm.com funcmem = SimpleMemory(in_addr_map = False), 1098931Sandreas.hansson@arm.com physmem = SimpleMemory()) 1107635SBrad.Beckmann@amd.com 1117635SBrad.Beckmann@amd.comif options.num_dmas > 0: 1128437SBrad.Beckmann@amd.com dmas = [ MemTest(atomic = False, 1138437SBrad.Beckmann@amd.com max_loads = options.maxloads, 1148437SBrad.Beckmann@amd.com issue_dmas = True, 1158437SBrad.Beckmann@amd.com percent_functional = 0, 1168437SBrad.Beckmann@amd.com percent_uncacheable = 0, 1178437SBrad.Beckmann@amd.com progress_interval = options.progress, 1188929Snilay@cs.wisc.edu suppress_func_warnings = 1198929Snilay@cs.wisc.edu not options.suppress_func_warnings) \ 1207635SBrad.Beckmann@amd.com for i in xrange(options.num_dmas) ] 1217635SBrad.Beckmann@amd.com system.dma_devices = dmas 1227635SBrad.Beckmann@amd.comelse: 1237635SBrad.Beckmann@amd.com dmas = [] 1247635SBrad.Beckmann@amd.com 1258929Snilay@cs.wisc.edudma_ports = [] 1268929Snilay@cs.wisc.edufor (i, dma) in enumerate(dmas): 1278929Snilay@cs.wisc.edu dma_ports.append(dma.test) 1288929Snilay@cs.wisc.eduRuby.create_system(options, system, dma_ports = dma_ports) 1297635SBrad.Beckmann@amd.com 1307635SBrad.Beckmann@amd.com# 1317635SBrad.Beckmann@amd.com# The tester is most effective when randomization is turned on and 1327635SBrad.Beckmann@amd.com# artifical delay is randomly inserted on messages 1337635SBrad.Beckmann@amd.com# 1347635SBrad.Beckmann@amd.comsystem.ruby.randomization = True 1357635SBrad.Beckmann@amd.com 1368322Ssteve.reinhardt@amd.comassert(len(cpus) == len(system.ruby._cpu_ruby_ports)) 1377635SBrad.Beckmann@amd.com 1387635SBrad.Beckmann@amd.comfor (i, cpu) in enumerate(cpus): 1397635SBrad.Beckmann@amd.com # 1407635SBrad.Beckmann@amd.com # Tie the cpu memtester ports to the correct system ports 1417635SBrad.Beckmann@amd.com # 1428845Sandreas.hansson@arm.com cpu.test = system.ruby._cpu_ruby_ports[i].slave 1437635SBrad.Beckmann@amd.com cpu.functional = system.funcmem.port 1447635SBrad.Beckmann@amd.com 1457938SBrad.Beckmann@amd.com # 1467938SBrad.Beckmann@amd.com # Since the memtester is incredibly bursty, increase the deadlock 1477938SBrad.Beckmann@amd.com # threshold to 5 million cycles 1487938SBrad.Beckmann@amd.com # 1498322Ssteve.reinhardt@amd.com system.ruby._cpu_ruby_ports[i].deadlock_threshold = 5000000 1507938SBrad.Beckmann@amd.com 1518436SBrad.Beckmann@amd.com # 1528436SBrad.Beckmann@amd.com # Ruby doesn't need the backing image of memory when running with 1538436SBrad.Beckmann@amd.com # the tester. 1548436SBrad.Beckmann@amd.com # 1558436SBrad.Beckmann@amd.com system.ruby._cpu_ruby_ports[i].access_phys_mem = False 1568436SBrad.Beckmann@amd.com 1577635SBrad.Beckmann@amd.comfor (i, dma) in enumerate(dmas): 1587635SBrad.Beckmann@amd.com # 1597635SBrad.Beckmann@amd.com # Tie the dma memtester ports to the correct functional port 1607635SBrad.Beckmann@amd.com # Note that the test port has already been connected to the dma_sequencer 1617635SBrad.Beckmann@amd.com # 1627635SBrad.Beckmann@amd.com dma.functional = system.funcmem.port 1637635SBrad.Beckmann@amd.com 1647635SBrad.Beckmann@amd.com# ----------------------- 1657635SBrad.Beckmann@amd.com# run simulation 1667635SBrad.Beckmann@amd.com# ----------------------- 1677635SBrad.Beckmann@amd.com 1688801Sgblack@eecs.umich.eduroot = Root( full_system = False, system = system ) 1697635SBrad.Beckmann@amd.comroot.system.mem_mode = 'timing' 1707635SBrad.Beckmann@amd.com 1717635SBrad.Beckmann@amd.com# Not much point in this being higher than the L1 latency 1727635SBrad.Beckmann@amd.comm5.ticks.setGlobalFrequency('1ns') 1737635SBrad.Beckmann@amd.com 1747635SBrad.Beckmann@amd.com# instantiate configuration 1757635SBrad.Beckmann@amd.comm5.instantiate() 1767635SBrad.Beckmann@amd.com 1777635SBrad.Beckmann@amd.com# simulate until program terminates 1787635SBrad.Beckmann@amd.comexit_event = m5.simulate(options.maxtick) 1797635SBrad.Beckmann@amd.com 1807635SBrad.Beckmann@amd.comprint 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause() 181