fs.py revision 8803:f6c5785bc8fd 
1# Copyright (c) 2010-2011 ARM Limited
2# All rights reserved.
3#
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8# licensed hereunder.  You may use the software subject to the license
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13# Copyright (c) 2006-2007 The Regents of The University of Michigan
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38#
39# Authors: Ali Saidi
40
41import optparse
42import os
43import sys
44
45import m5
46from m5.defines import buildEnv
47from m5.objects import *
48from m5.util import addToPath, fatal
49
50addToPath('../common')
51
52from FSConfig import *
53from SysPaths import *
54from Benchmarks import *
55import Simulation
56import CacheConfig
57from Caches import *
58
59# Get paths we might need.  It's expected this file is in m5/configs/example.
60config_path = os.path.dirname(os.path.abspath(__file__))
61config_root = os.path.dirname(config_path)
62
63parser = optparse.OptionParser()
64
65# Simulation options
66parser.add_option("--timesync", action="store_true",
67        help="Prevent simulated time from getting ahead of real time")
68
69# System options
70parser.add_option("--kernel", action="store", type="string")
71parser.add_option("--script", action="store", type="string")
72parser.add_option("--frame-capture", action="store_true",
73        help="Stores changed frame buffers from the VNC server to compressed "\
74        "files in the gem5 output directory")
75
76if buildEnv['TARGET_ISA'] == "arm":
77    parser.add_option("--bare-metal", action="store_true",
78               help="Provide the raw system without the linux specific bits")
79    parser.add_option("--machine-type", action="store", type="choice",
80            choices=ArmMachineType.map.keys(), default="RealView_PBX")
81# Benchmark options
82parser.add_option("--dual", action="store_true",
83                  help="Simulate two systems attached with an ethernet link")
84parser.add_option("-b", "--benchmark", action="store", type="string",
85                  dest="benchmark",
86                  help="Specify the benchmark to run. Available benchmarks: %s"\
87                  % DefinedBenchmarks)
88
89# Metafile options
90parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
91                  help="Specify the filename to dump a pcap capture of the" \
92                  "ethernet traffic")
93
94execfile(os.path.join(config_root, "common", "Options.py"))
95
96(options, args) = parser.parse_args()
97
98if args:
99    print "Error: script doesn't take any positional arguments"
100    sys.exit(1)
101
102# driver system CPU is always simple... note this is an assignment of
103# a class, not an instance.
104DriveCPUClass = AtomicSimpleCPU
105drive_mem_mode = 'atomic'
106
107# system under test can be any CPU
108(TestCPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
109
110TestCPUClass.clock = '2GHz'
111DriveCPUClass.clock = '2GHz'
112
113if options.benchmark:
114    try:
115        bm = Benchmarks[options.benchmark]
116    except KeyError:
117        print "Error benchmark %s has not been defined." % options.benchmark
118        print "Valid benchmarks are: %s" % DefinedBenchmarks
119        sys.exit(1)
120else:
121    if options.dual:
122        bm = [SysConfig(), SysConfig()]
123    else:
124        bm = [SysConfig()]
125
126np = options.num_cpus
127
128if buildEnv['TARGET_ISA'] == "alpha":
129    test_sys = makeLinuxAlphaSystem(test_mem_mode, bm[0])
130elif buildEnv['TARGET_ISA'] == "mips":
131    test_sys = makeLinuxMipsSystem(test_mem_mode, bm[0])
132elif buildEnv['TARGET_ISA'] == "sparc":
133    test_sys = makeSparcSystem(test_mem_mode, bm[0])
134elif buildEnv['TARGET_ISA'] == "x86":
135    test_sys = makeLinuxX86System(test_mem_mode, options.num_cpus, bm[0])
136    setWorkCountOptions(test_sys, options)
137elif buildEnv['TARGET_ISA'] == "arm":
138    test_sys = makeArmSystem(test_mem_mode,
139            options.machine_type, bm[0],
140            bare_metal=options.bare_metal)
141    setWorkCountOptions(test_sys, options)
142else:
143    fatal("incapable of building non-alpha or non-sparc full system!")
144
145if options.kernel is not None:
146    test_sys.kernel = binary(options.kernel)
147
148if options.script is not None:
149    test_sys.readfile = options.script
150
151test_sys.init_param = options.init_param
152
153test_sys.cpu = [TestCPUClass(cpu_id=i) for i in xrange(np)]
154
155CacheConfig.config_cache(options, test_sys)
156
157if bm[0]:
158    mem_size = bm[0].mem()
159else:
160    mem_size = SysConfig().mem()
161if options.caches or options.l2cache:
162    test_sys.iocache = IOCache(addr_range=mem_size)
163    test_sys.iocache.cpu_side = test_sys.iobus.port
164    test_sys.iocache.mem_side = test_sys.membus.port
165else:
166    test_sys.iobridge = Bridge(delay='50ns', nack_delay='4ns',
167                               ranges = [AddrRange(mem_size)])
168    test_sys.iobridge.slave = test_sys.iobus.port
169    test_sys.iobridge.master = test_sys.membus.port
170
171for i in xrange(np):
172    if options.fastmem:
173        test_sys.cpu[i].physmem_port = test_sys.physmem.port
174
175if buildEnv['TARGET_ISA'] == 'mips':
176    setMipsOptions(TestCPUClass)
177
178if len(bm) == 2:
179    if buildEnv['TARGET_ISA'] == 'alpha':
180        drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1])
181    elif buildEnv['TARGET_ISA'] == 'mips':
182        drive_sys = makeLinuxMipsSystem(drive_mem_mode, bm[1])
183    elif buildEnv['TARGET_ISA'] == 'sparc':
184        drive_sys = makeSparcSystem(drive_mem_mode, bm[1])
185    elif buildEnv['TARGET_ISA'] == 'x86':
186        drive_sys = makeX86System(drive_mem_mode, np, bm[1])
187    elif buildEnv['TARGET_ISA'] == 'arm':
188        drive_sys = makeArmSystem(drive_mem_mode, options.machine_type, bm[1])
189
190    drive_sys.cpu = DriveCPUClass(cpu_id=0)
191    drive_sys.cpu.connectAllPorts(drive_sys.membus)
192    if options.fastmem:
193        drive_sys.cpu.physmem_port = drive_sys.physmem.port
194    if options.kernel is not None:
195        drive_sys.kernel = binary(options.kernel)
196
197    drive_sys.init_param = options.init_param
198    root = makeDualRoot(True, test_sys, drive_sys, options.etherdump)
199elif len(bm) == 1:
200    root = Root(full_system=True, system=test_sys)
201else:
202    print "Error I don't know how to create more than 2 systems."
203    sys.exit(1)
204
205if options.timesync:
206    root.time_sync_enable = True
207
208if options.frame_capture:
209    VncServer.frame_capture = True
210
211Simulation.run(options, root, test_sys, FutureClass)
212