fs.py revision 3180:664fe611de8e 
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
38if not m5.build_env['FULL_SYSTEM']:
39    m5.panic("This script requires full-system mode (ALPHA_FS).")
40
41parser = optparse.OptionParser()
42
43parser.add_option("-d", "--detailed", action="store_true")
44parser.add_option("-t", "--timing", action="store_true")
45parser.add_option("-m", "--maxtick", type="int")
46parser.add_option("--maxtime", type="float")
47parser.add_option("--dual", action="store_true",
48                  help="Simulate two systems attached with an ethernet link")
49parser.add_option("-b", "--benchmark", action="store", type="string",
50                  dest="benchmark",
51                  help="Specify the benchmark to run. Available benchmarks: %s"\
52                  % DefinedBenchmarks)
53parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
54                  help="Specify the filename to dump a pcap capture of the" \
55                  "ethernet traffic")
56parser.add_option("--checkpoint_dir", action="store", type="string",
57                  help="Place all checkpoints in this absolute directory")
58
59(options, args) = parser.parse_args()
60
61if args:
62    print "Error: script doesn't take any positional arguments"
63    sys.exit(1)
64
65if options.detailed:
66    cpu = DetailedO3CPU()
67    cpu2 = DetailedO3CPU()
68    mem_mode = 'timing'
69elif options.timing:
70    cpu = TimingSimpleCPU()
71    cpu2 = TimingSimpleCPU()
72    mem_mode = 'timing'
73else:
74    cpu = AtomicSimpleCPU()
75    cpu2 = AtomicSimpleCPU()
76    mem_mode = 'atomic'
77
78cpu.clock = '2GHz'
79cpu2.clock = '2GHz'
80cpu.cpu_id = 0
81cpu2.cpu_id = 0
82
83if options.benchmark:
84    if options.benchmark not in Benchmarks:
85        print "Error benchmark %s has not been defined." % options.benchmark
86        print "Valid benchmarks are: %s" % DefinedBenchmarks
87        sys.exit(1)
88
89    bm = Benchmarks[options.benchmark]
90else:
91    if options.dual:
92        bm = [Machine(), Machine()]
93    else:
94        bm = [Machine()]
95
96if len(bm) == 2:
97    s1 = makeLinuxAlphaSystem(mem_mode, bm[0])
98    s1.cpu = cpu
99    cpu.connectMemPorts(s1.membus)
100    cpu.mem = s1.physmem
101    s2 = makeLinuxAlphaSystem(mem_mode, bm[1])
102    s2.cpu = cpu2
103    cpu2.connectMemPorts(s2.membus)
104    cpu2.mem = s2.physmem
105    root = makeDualRoot(s1, s2, options.etherdump)
106elif len(bm) == 1:
107    root = Root(clock = '1THz',
108                system = makeLinuxAlphaSystem(mem_mode, bm[0]))
109    root.system.cpu = cpu
110    cpu.connectMemPorts(root.system.membus)
111    cpu.mem = root.system.physmem
112else:
113    print "Error I don't know how to create more than 2 systems."
114    sys.exit(1)
115
116m5.instantiate(root)
117
118if options.maxtick:
119    maxtick = options.maxtick
120elif options.maxtime:
121    simtime = int(options.maxtime * root.clock.value)
122    print "simulating for: ", simtime
123    maxtick = simtime
124else:
125    maxtick = -1
126
127exit_event = m5.simulate(maxtick)
128
129while exit_event.getCause() == "checkpoint":
130    if options.checkpoint_dir:
131        m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
132    else:
133        m5.checkpoint(root, "cpt.%d")
134
135    if maxtick == -1:
136        exit_event = m5.simulate(maxtick)
137    else:
138        exit_event = m5.simulate(maxtick - m5.curTick())
139
140print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()
141