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# Copyright (c) 2015 ARM Limited
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# Authors: Radhika Jagtap
# Basic elastic traces replay script that configures a Trace CPU
import optparse
from m5.util import addToPath, fatal
addToPath('../')
from common import Options
from common import Simulation
from common import CacheConfig
from common import MemConfig
from common.Caches import *
parser = optparse.OptionParser()
Options.addCommonOptions(parser)
if '--ruby' in sys.argv:
print "This script does not support Ruby configuration, mainly"\
" because Trace CPU has been tested only with classic memory system"
sys.exit(1)
(options, args) = parser.parse_args()
if args:
print "Error: script doesn't take any positional arguments"
sys.exit(1)
numThreads = 1
if options.cpu_type != "TraceCPU":
fatal("This is a script for elastic trace replay simulation, use "\
"--cpu-type=TraceCPU\n");
if options.num_cpus > 1:
fatal("This script does not support multi-processor trace replay.\n")
# In this case FutureClass will be None as there is not fast forwarding or
# switching
(CPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
CPUClass.numThreads = numThreads
system = System(cpu = CPUClass(cpu_id=0),
mem_mode = test_mem_mode,
mem_ranges = [AddrRange(options.mem_size)],
cache_line_size = options.cacheline_size)
# Create a top-level voltage domain
system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
# Create a source clock for the system. This is used as the clock period for
# xbar and memory
system.clk_domain = SrcClockDomain(clock = options.sys_clock,
voltage_domain = system.voltage_domain)
# Create a CPU voltage domain
system.cpu_voltage_domain = VoltageDomain()
# Create a separate clock domain for the CPUs. In case of Trace CPUs this clock
# is actually used only by the caches connected to the CPU.
system.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
voltage_domain =
system.cpu_voltage_domain)
# All cpus belong to a common cpu_clk_domain, therefore running at a common
# frequency.
for cpu in system.cpu:
cpu.clk_domain = system.cpu_clk_domain
# BaseCPU no longer has default values for the BaseCPU.isa
# createThreads() is needed to fill in the cpu.isa
for cpu in system.cpu:
cpu.createThreads()
# Assign input trace files to the Trace CPU
system.cpu.instTraceFile=options.inst_trace_file
system.cpu.dataTraceFile=options.data_trace_file
# Configure the classic memory system options
MemClass = Simulation.setMemClass(options)
system.membus = SystemXBar()
system.system_port = system.membus.slave
CacheConfig.config_cache(options, system)
MemConfig.config_mem(options, system)
root = Root(full_system = False, system = system)
Simulation.run(options, root, system, FutureClass)