simple-timing-mp-ruby.py revision 7034:6bf327b128c6 
1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Ron Dreslinski
28
29import m5
30from m5.objects import *
31from m5.defines import buildEnv
32from m5.util import addToPath
33import os, optparse, sys
34
35if buildEnv['FULL_SYSTEM']:
36    panic("This script requires system-emulation mode (*_SE).")
37
38# Get paths we might need
39config_path = os.path.dirname(os.path.abspath(__file__))
40config_root = os.path.dirname(config_path)
41m5_root = os.path.dirname(config_root)
42addToPath(config_root+'/configs/common')
43addToPath(config_root+'/configs/ruby')
44addToPath(config_root+'/configs/ruby/protocols')
45addToPath(config_root+'/configs/ruby/topologies')
46
47import Ruby
48
49parser = optparse.OptionParser()
50
51#
52# Set the default cache size and associativity to be very small to encourage
53# races between requests and writebacks.
54#
55parser.add_option("--l1d_size", type="string", default="256B")
56parser.add_option("--l1i_size", type="string", default="256B")
57parser.add_option("--l2_size", type="string", default="512B")
58parser.add_option("--l1d_assoc", type="int", default=2)
59parser.add_option("--l1i_assoc", type="int", default=2)
60parser.add_option("--l2_assoc", type="int", default=2)
61
62execfile(os.path.join(config_root, "configs/common", "Options.py"))
63
64(options, args) = parser.parse_args()
65
66nb_cores = 4
67cpus = [ TimingSimpleCPU(cpu_id=i) for i in xrange(nb_cores) ]
68
69# overwrite the num_cpus to equal nb_cores
70options.num_cpus = nb_cores
71
72# system simulated
73system = System(cpu = cpus,
74                physmem = PhysicalMemory())
75
76system.ruby = Ruby.create_system(options, system.physmem)
77
78assert(options.num_cpus == len(system.ruby.cpu_ruby_ports))
79
80for (i, cpu) in enumerate(system.cpu):
81    #
82    # Tie the cpu ports to the ruby cpu ports
83    #
84    cpu.icache_port = system.ruby.cpu_ruby_ports[i].port
85    cpu.dcache_port = system.ruby.cpu_ruby_ports[i].port
86
87# -----------------------
88# run simulation
89# -----------------------
90
91root = Root( system = system )
92root.system.mem_mode = 'timing'
93
94# Not much point in this being higher than the L1 latency
95m5.ticks.setGlobalFrequency('1ns')
96