fs.py revision 9935 
1# Copyright (c) 2010-2013 ARM Limited
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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 sys
43
44import m5
45from m5.defines import buildEnv
46from m5.objects import *
47from m5.util import addToPath, fatal
48
49addToPath('../common')
50
51from FSConfig import *
52from SysPaths import *
53from Benchmarks import *
54import Simulation
55import CacheConfig
56import MemConfig
57from Caches import *
58import Options
59
60parser = optparse.OptionParser()
61Options.addCommonOptions(parser)
62Options.addFSOptions(parser)
63
64(options, args) = parser.parse_args()
65
66if args:
67    print "Error: script doesn't take any positional arguments"
68    sys.exit(1)
69
70# driver system CPU is always simple... note this is an assignment of
71# a class, not an instance.
72DriveCPUClass = AtomicSimpleCPU
73drive_mem_mode = 'atomic'
74
75# Check if KVM support has been enabled, we might need to do VM
76# configuration if that's the case.
77have_kvm_support = 'BaseKvmCPU' in globals()
78def is_kvm_cpu(cpu_class):
79    return have_kvm_support and cpu_class != None and \
80        issubclass(cpu_class, BaseKvmCPU)
81
82# system under test can be any CPU
83(TestCPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
84
85# Match the memories with the CPUs, the driver system always simple,
86# and based on the options for the test system
87DriveMemClass = SimpleMemory
88TestMemClass = Simulation.setMemClass(options)
89
90if options.benchmark:
91    try:
92        bm = Benchmarks[options.benchmark]
93    except KeyError:
94        print "Error benchmark %s has not been defined." % options.benchmark
95        print "Valid benchmarks are: %s" % DefinedBenchmarks
96        sys.exit(1)
97else:
98    if options.dual:
99        bm = [SysConfig(disk=options.disk_image, mem=options.mem_size), SysConfig(disk=options.disk_image, mem=options.mem_size)]
100    else:
101        bm = [SysConfig(disk=options.disk_image, mem=options.mem_size)]
102
103np = options.num_cpus
104
105if buildEnv['TARGET_ISA'] == "alpha":
106    test_sys = makeLinuxAlphaSystem(test_mem_mode, bm[0])
107elif buildEnv['TARGET_ISA'] == "mips":
108    test_sys = makeLinuxMipsSystem(test_mem_mode, bm[0])
109elif buildEnv['TARGET_ISA'] == "sparc":
110    test_sys = makeSparcSystem(test_mem_mode, bm[0])
111elif buildEnv['TARGET_ISA'] == "x86":
112    test_sys = makeLinuxX86System(test_mem_mode, options.num_cpus, bm[0])
113elif buildEnv['TARGET_ISA'] == "arm":
114    test_sys = makeArmSystem(test_mem_mode, options.machine_type, bm[0],
115                             options.dtb_filename,
116                             bare_metal=options.bare_metal)
117    if options.enable_context_switch_stats_dump:
118        test_sys.enable_context_switch_stats_dump = True
119else:
120    fatal("Incapable of building %s full system!", buildEnv['TARGET_ISA'])
121
122# Create a top-level voltage domain
123test_sys.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
124
125# Create a source clock for the system and set the clock period
126test_sys.clk_domain = SrcClockDomain(clock =  options.sys_clock,
127                                     voltage_domain = test_sys.voltage_domain)
128
129# Create a CPU voltage domain
130test_sys.cpu_voltage_domain = VoltageDomain()
131
132# Create a source clock for the CPUs and set the clock period
133test_sys.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
134                                         voltage_domain =
135                                         test_sys.cpu_voltage_domain)
136
137if options.kernel is not None:
138    test_sys.kernel = binary(options.kernel)
139
140if options.script is not None:
141    test_sys.readfile = options.script
142
143test_sys.init_param = options.init_param
144
145# For now, assign all the CPUs to the same clock domain
146test_sys.cpu = [TestCPUClass(clk_domain=test_sys.cpu_clk_domain, cpu_id=i)
147                for i in xrange(np)]
148
149if is_kvm_cpu(TestCPUClass) or is_kvm_cpu(FutureClass):
150    test_sys.vm = KvmVM()
151
152if options.caches or options.l2cache:
153    # By default the IOCache runs at the system clock
154    test_sys.iocache = IOCache(addr_ranges = test_sys.mem_ranges)
155    test_sys.iocache.cpu_side = test_sys.iobus.master
156    test_sys.iocache.mem_side = test_sys.membus.slave
157else:
158    test_sys.iobridge = Bridge(delay='50ns', ranges = test_sys.mem_ranges)
159    test_sys.iobridge.slave = test_sys.iobus.master
160    test_sys.iobridge.master = test_sys.membus.slave
161
162# Sanity check
163if options.fastmem:
164    if TestCPUClass != AtomicSimpleCPU:
165        fatal("Fastmem can only be used with atomic CPU!")
166    if (options.caches or options.l2cache):
167        fatal("You cannot use fastmem in combination with caches!")
168
169for i in xrange(np):
170    if options.fastmem:
171        test_sys.cpu[i].fastmem = True
172    if options.checker:
173        test_sys.cpu[i].addCheckerCpu()
174    test_sys.cpu[i].createThreads()
175
176CacheConfig.config_cache(options, test_sys)
177MemConfig.config_mem(options, test_sys)
178
179if len(bm) == 2:
180    if buildEnv['TARGET_ISA'] == 'alpha':
181        drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1])
182    elif buildEnv['TARGET_ISA'] == 'mips':
183        drive_sys = makeLinuxMipsSystem(drive_mem_mode, bm[1])
184    elif buildEnv['TARGET_ISA'] == 'sparc':
185        drive_sys = makeSparcSystem(drive_mem_mode, bm[1])
186    elif buildEnv['TARGET_ISA'] == 'x86':
187        drive_sys = makeX86System(drive_mem_mode, np, bm[1])
188    elif buildEnv['TARGET_ISA'] == 'arm':
189        drive_sys = makeArmSystem(drive_mem_mode, options.machine_type, bm[1])
190
191    # Create a top-level voltage domain
192    drive_sys.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
193
194    # Create a source clock for the system and set the clock period
195    drive_sys.clk_domain = SrcClockDomain(clock =  options.sys_clock)
196
197    # Create a CPU voltage domain
198    drive_sys.cpu_voltage_domain = VoltageDomain()
199
200    # Create a source clock for the CPUs and set the clock period
201    drive_sys.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
202                                              voltage_domain =
203                                              drive_sys.cpu_voltage_domain)
204
205    drive_sys.cpu = DriveCPUClass(clk_domain=drive_sys.cpu_clk_domain,
206                                  cpu_id=0)
207    drive_sys.cpu.createThreads()
208    drive_sys.cpu.createInterruptController()
209    drive_sys.cpu.connectAllPorts(drive_sys.membus)
210    if options.fastmem:
211        drive_sys.cpu.fastmem = True
212    if options.kernel is not None:
213        drive_sys.kernel = binary(options.kernel)
214
215    if is_kvm_cpu(DriveCPUClass):
216        drive_sys.vm = KvmVM()
217
218    drive_sys.iobridge = Bridge(delay='50ns',
219                                ranges = drive_sys.mem_ranges)
220    drive_sys.iobridge.slave = drive_sys.iobus.master
221    drive_sys.iobridge.master = drive_sys.membus.slave
222
223    # Create the appropriate memory controllers and connect them to the
224    # memory bus
225    drive_sys.mem_ctrls = [DriveMemClass(range = r)
226                           for r in drive_sys.mem_ranges]
227    for i in xrange(len(drive_sys.mem_ctrls)):
228        drive_sys.mem_ctrls[i].port = drive_sys.membus.master
229
230    drive_sys.init_param = options.init_param
231    root = makeDualRoot(True, test_sys, drive_sys, options.etherdump)
232elif len(bm) == 1:
233    root = Root(full_system=True, system=test_sys)
234else:
235    print "Error I don't know how to create more than 2 systems."
236    sys.exit(1)
237
238if options.timesync:
239    root.time_sync_enable = True
240
241if options.frame_capture:
242    VncServer.frame_capture = True
243
244Simulation.setWorkCountOptions(test_sys, options)
245Simulation.run(options, root, test_sys, FutureClass)
246