memtest-ruby.py revision 6928
1# Copyright (c) 2006-2007 The Regents of The University of Michigan 2# Copyright (c) 2010 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 30import m5 31from m5.objects import * 32from m5.defines import buildEnv 33from m5.util import addToPath 34import os, optparse, sys 35 36if buildEnv['FULL_SYSTEM']: 37 panic("This script requires system-emulation mode (*_SE).") 38 39# Get paths we might need 40config_path = os.path.dirname(os.path.abspath(__file__)) 41config_root = os.path.dirname(config_path) 42m5_root = os.path.dirname(config_root) 43addToPath(config_root+'/configs/common') 44addToPath(config_root+'/configs/ruby') 45 46import Ruby 47 48parser = optparse.OptionParser() 49 50# 51# Set the default cache size and associativity to be very small to encourage 52# races between requests and writebacks. 53# 54parser.add_option("--l1d_size", type="string", default="256B") 55parser.add_option("--l1i_size", type="string", default="256B") 56parser.add_option("--l2_size", type="string", default="512B") 57parser.add_option("--l1d_assoc", type="int", default=2) 58parser.add_option("--l1i_assoc", type="int", default=2) 59parser.add_option("--l2_assoc", type="int", default=2) 60 61execfile(os.path.join(config_root, "configs/common", "Options.py")) 62 63(options, args) = parser.parse_args() 64 65#MAX CORES IS 8 with the fals sharing method 66nb_cores = 8 67 68# ruby does not support atomic, functional, or uncacheable accesses 69cpus = [ MemTest(atomic=False, percent_functional=0, \ 70 percent_uncacheable=0) \ 71 for i in xrange(nb_cores) ] 72 73# overwrite options.num_cpus with the nb_cores value 74options.num_cpus = nb_cores 75 76# system simulated 77system = System(cpu = cpus, 78 funcmem = PhysicalMemory(), 79 physmem = PhysicalMemory()) 80 81system.ruby = Ruby.create_system(options, system.physmem) 82 83assert(len(cpus) == len(system.ruby.cpu_ruby_ports)) 84 85for (i, ruby_port) in enumerate(system.ruby.cpu_ruby_ports): 86 # 87 # Tie the cpu test and functional ports to the ruby cpu ports and 88 # physmem, respectively 89 # 90 cpus[i].test = ruby_port.port 91 cpus[i].functional = system.funcmem.port 92 93# ----------------------- 94# run simulation 95# ----------------------- 96 97root = Root(system = system) 98root.system.mem_mode = 'timing' 99 100# Not much point in this being higher than the L1 latency 101m5.ticks.setGlobalFrequency('1ns') 102