se.py revision 10118 
1# Copyright (c) 2012-2013 ARM Limited
2# All rights reserved.
3#
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13# Copyright (c) 2006-2008 The Regents of The University of Michigan
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38#
39# Authors: Steve Reinhardt
40
41# Simple test script
42#
43# "m5 test.py"
44
45import optparse
46import sys
47import os
48
49import m5
50from m5.defines import buildEnv
51from m5.objects import *
52from m5.util import addToPath, fatal
53
54addToPath('../common')
55addToPath('../ruby')
56
57import Options
58import Ruby
59import Simulation
60import CacheConfig
61import MemConfig
62from Caches import *
63from cpu2000 import *
64
65def get_processes(options):
66    """Interprets provided options and returns a list of processes"""
67
68    multiprocesses = []
69    inputs = []
70    outputs = []
71    errouts = []
72    pargs = []
73
74    workloads = options.cmd.split(';')
75    if options.input != "":
76        inputs = options.input.split(';')
77    if options.output != "":
78        outputs = options.output.split(';')
79    if options.errout != "":
80        errouts = options.errout.split(';')
81    if options.options != "":
82        pargs = options.options.split(';')
83
84    idx = 0
85    for wrkld in workloads:
86        process = LiveProcess()
87        process.executable = wrkld
88        process.cwd = os.getcwd()
89
90        if len(pargs) > idx:
91            process.cmd = [wrkld] + pargs[idx].split()
92        else:
93            process.cmd = [wrkld]
94
95        if len(inputs) > idx:
96            process.input = inputs[idx]
97        if len(outputs) > idx:
98            process.output = outputs[idx]
99        if len(errouts) > idx:
100            process.errout = errouts[idx]
101
102        multiprocesses.append(process)
103        idx += 1
104
105    if options.smt:
106        assert(options.cpu_type == "detailed" or options.cpu_type == "inorder")
107        return multiprocesses, idx
108    else:
109        return multiprocesses, 1
110
111
112parser = optparse.OptionParser()
113Options.addCommonOptions(parser)
114Options.addSEOptions(parser)
115
116if '--ruby' in sys.argv:
117    Ruby.define_options(parser)
118
119(options, args) = parser.parse_args()
120
121if args:
122    print "Error: script doesn't take any positional arguments"
123    sys.exit(1)
124
125multiprocesses = []
126numThreads = 1
127
128if options.bench:
129    apps = options.bench.split("-")
130    if len(apps) != options.num_cpus:
131        print "number of benchmarks not equal to set num_cpus!"
132        sys.exit(1)
133
134    for app in apps:
135        try:
136            if buildEnv['TARGET_ISA'] == 'alpha':
137                exec("workload = %s('alpha', 'tru64', '%s')" % (
138                        app, options.spec_input))
139            elif buildEnv['TARGET_ISA'] == 'arm':
140                exec("workload = %s('arm_%s', 'linux', '%s')" % (
141                        app, options.arm_iset, options.spec_input))
142            else:
143                exec("workload = %s(buildEnv['TARGET_ISA', 'linux', '%s')" % (
144                        app, options.spec_input))
145            multiprocesses.append(workload.makeLiveProcess())
146        except:
147            print >>sys.stderr, "Unable to find workload for %s: %s" % (
148                    buildEnv['TARGET_ISA'], app)
149            sys.exit(1)
150elif options.cmd:
151    multiprocesses, numThreads = get_processes(options)
152else:
153    print >> sys.stderr, "No workload specified. Exiting!\n"
154    sys.exit(1)
155
156
157(CPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
158CPUClass.numThreads = numThreads
159
160MemClass = Simulation.setMemClass(options)
161
162# Check -- do not allow SMT with multiple CPUs
163if options.smt and options.num_cpus > 1:
164    fatal("You cannot use SMT with multiple CPUs!")
165
166np = options.num_cpus
167system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
168                mem_mode = test_mem_mode,
169                mem_ranges = [AddrRange(options.mem_size)],
170                cache_line_size = options.cacheline_size)
171
172# Create a top-level voltage domain
173system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
174
175# Create a source clock for the system and set the clock period
176system.clk_domain = SrcClockDomain(clock =  options.sys_clock,
177                                   voltage_domain = system.voltage_domain)
178
179# Create a CPU voltage domain
180system.cpu_voltage_domain = VoltageDomain()
181
182# Create a separate clock domain for the CPUs
183system.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
184                                       voltage_domain =
185                                       system.cpu_voltage_domain)
186
187# All cpus belong to a common cpu_clk_domain, therefore running at a common
188# frequency.
189for cpu in system.cpu:
190    cpu.clk_domain = system.cpu_clk_domain
191
192# Sanity check
193if options.fastmem:
194    if CPUClass != AtomicSimpleCPU:
195        fatal("Fastmem can only be used with atomic CPU!")
196    if (options.caches or options.l2cache):
197        fatal("You cannot use fastmem in combination with caches!")
198
199if options.simpoint_profile:
200    if not options.fastmem:
201        # Atomic CPU checked with fastmem option already
202        fatal("SimPoint generation should be done with atomic cpu and fastmem")
203    if np > 1:
204        fatal("SimPoint generation not supported with more than one CPUs")
205
206for i in xrange(np):
207    if options.smt:
208        system.cpu[i].workload = multiprocesses
209    elif len(multiprocesses) == 1:
210        system.cpu[i].workload = multiprocesses[0]
211    else:
212        system.cpu[i].workload = multiprocesses[i]
213
214    if options.fastmem:
215        system.cpu[i].fastmem = True
216
217    if options.simpoint_profile:
218        system.cpu[i].simpoint_profile = True
219        system.cpu[i].simpoint_interval = options.simpoint_interval
220
221    if options.checker:
222        system.cpu[i].addCheckerCpu()
223
224    system.cpu[i].createThreads()
225
226if options.ruby:
227    if not (options.cpu_type == "detailed" or options.cpu_type == "timing"):
228        print >> sys.stderr, "Ruby requires TimingSimpleCPU or O3CPU!!"
229        sys.exit(1)
230
231    # Set the option for physmem so that it is not allocated any space
232    system.physmem = MemClass(range=AddrRange(options.mem_size),
233                              null = True)
234    options.use_map = True
235    Ruby.create_system(options, system)
236    assert(options.num_cpus == len(system.ruby._cpu_ruby_ports))
237
238    for i in xrange(np):
239        ruby_port = system.ruby._cpu_ruby_ports[i]
240
241        # Create the interrupt controller and connect its ports to Ruby
242        # Note that the interrupt controller is always present but only
243        # in x86 does it have message ports that need to be connected
244        system.cpu[i].createInterruptController()
245
246        # Connect the cpu's cache ports to Ruby
247        system.cpu[i].icache_port = ruby_port.slave
248        system.cpu[i].dcache_port = ruby_port.slave
249        if buildEnv['TARGET_ISA'] == 'x86':
250            system.cpu[i].interrupts.pio = ruby_port.master
251            system.cpu[i].interrupts.int_master = ruby_port.slave
252            system.cpu[i].interrupts.int_slave = ruby_port.master
253            system.cpu[i].itb.walker.port = ruby_port.slave
254            system.cpu[i].dtb.walker.port = ruby_port.slave
255else:
256    system.membus = CoherentBus()
257    system.system_port = system.membus.slave
258    CacheConfig.config_cache(options, system)
259    MemConfig.config_mem(options, system)
260
261root = Root(full_system = False, system = system)
262Simulation.run(options, root, system, FutureClass)
263