memtest-ruby.py revision 7034:6bf327b128c6
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') 45addToPath(config_root+'/configs/ruby/protocols') 46addToPath(config_root+'/configs/ruby/topologies') 47 48import Ruby 49 50parser = optparse.OptionParser() 51 52# 53# Set the default cache size and associativity to be very small to encourage 54# races between requests and writebacks. 55# 56parser.add_option("--l1d_size", type="string", default="256B") 57parser.add_option("--l1i_size", type="string", default="256B") 58parser.add_option("--l2_size", type="string", default="512B") 59parser.add_option("--l1d_assoc", type="int", default=2) 60parser.add_option("--l1i_assoc", type="int", default=2) 61parser.add_option("--l2_assoc", type="int", default=2) 62 63execfile(os.path.join(config_root, "configs/common", "Options.py")) 64 65(options, args) = parser.parse_args() 66 67#MAX CORES IS 8 with the fals sharing method 68nb_cores = 8 69 70# ruby does not support atomic, functional, or uncacheable accesses 71cpus = [ MemTest(atomic=False, percent_functional=0, \ 72 percent_uncacheable=0) \ 73 for i in xrange(nb_cores) ] 74 75# overwrite options.num_cpus with the nb_cores value 76options.num_cpus = nb_cores 77 78# system simulated 79system = System(cpu = cpus, 80 funcmem = PhysicalMemory(), 81 physmem = PhysicalMemory()) 82 83system.ruby = Ruby.create_system(options, system.physmem) 84 85assert(len(cpus) == len(system.ruby.cpu_ruby_ports)) 86 87for (i, ruby_port) in enumerate(system.ruby.cpu_ruby_ports): 88 # 89 # Tie the cpu test and functional ports to the ruby cpu ports and 90 # physmem, respectively 91 # 92 cpus[i].test = ruby_port.port 93 cpus[i].functional = system.funcmem.port 94 95# ----------------------- 96# run simulation 97# ----------------------- 98 99root = Root(system = system) 100root.system.mem_mode = 'timing' 101 102# Not much point in this being higher than the L1 latency 103m5.ticks.setGlobalFrequency('1ns') 104