fs.py revision 3022:b3b379cb97ef 
1# Copyright (c) 2006 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: Ali Saidi
28
29import optparse, os, sys
30
31import m5
32from m5.objects import *
33m5.AddToPath('../common')
34from FSConfig import *
35from SysPaths import *
36from Benchmarks import *
37
38parser = optparse.OptionParser()
39
40parser.add_option("-d", "--detailed", action="store_true")
41parser.add_option("-t", "--timing", action="store_true")
42parser.add_option("-m", "--maxtick", type="int")
43parser.add_option("--maxtime", type="float")
44parser.add_option("--dual", action="store_true",
45                  help="Simulate two systems attached with an ethernet link")
46parser.add_option("-b", "--benchmark", action="store", type="string",
47                  dest="benchmark",
48                  help="Specify the benchmark to run. Available benchmarks: %s"\
49                          % DefinedBenchmarks)
50
51(options, args) = parser.parse_args()
52
53if args:
54    print "Error: script doesn't take any positional arguments"
55    sys.exit(1)
56
57if options.detailed:
58    cpu = DetailedO3CPU()
59    cpu2 = DetailedO3CPU()
60    mem_mode = 'timing'
61elif options.timing:
62    cpu = TimingSimpleCPU()
63    cpu2 = TimingSimpleCPU()
64    mem_mode = 'timing'
65else:
66    cpu = AtomicSimpleCPU()
67    cpu2 = AtomicSimpleCPU()
68    mem_mode = 'atomic'
69
70cpu.clock = '2GHz'
71cpu2.clock = '2GHz'
72
73if options.benchmark:
74    if options.benchmark not in Benchmarks:
75        print "Error benchmark %s has not been defined." % options.benchmark
76        print "Valid benchmarks are: %s" % DefinedBenchmarks
77        sys.exit(1)
78
79    bm = Benchmarks[options.benchmark]
80else:
81    if options.dual:
82        bm = [Machine(), Machine()]
83    else:
84        bm = [Machine()]
85
86if len(bm) == 2:
87    s1 = makeLinuxAlphaSystem(mem_mode, bm[0])
88    s1.cpu = cpu
89    cpu.connectMemPorts(s1.membus)
90    s2 = makeLinuxAlphaSystem(mem_mode, bm[1])
91    s2.cpu = cpu2
92    cpu2.connectMemPorts(s2.membus)
93    root = makeDualRoot(s1, s2)
94elif len(bm) == 1:
95    root = Root(clock = '1THz',
96                system = makeLinuxAlphaSystem(mem_mode, bm[0]))
97    root.system.cpu = cpu
98    cpu.connectMemPorts(root.system.membus)
99else:
100    print "Error I don't know how to create more than 2 systems."
101    sys.exit(1)
102
103m5.instantiate(root)
104
105if options.maxtick:
106    arg = options.maxtick
107elif options.maxtime:
108    simtime = int(options.maxtime * root.clock.value)
109    print "simulating for: ", simtime
110    arg = simtime
111else:
112    arg = -1
113
114exit_event = m5.simulate(arg)
115
116while exit_event.getCause() == "checkpoint":
117        m5.checkpoint(root, "cpt.%d")
118        exit_event = m5.simulate(arg)
119
120print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()
121