gem5/configs/example/se.py
Radhika Jagtap 9bd5051b60 config: Enable elastic trace capture and replay in se/fs
This patch adds changes to the configuration scripts to support elastic
tracing and replay.

The patch adds a command line option to enable elastic tracing in SE mode
and FS mode. When enabled the Elastic Trace cpu probe is attached to O3CPU
and a few O3 CPU parameters are tuned. The Elastic Trace probe writes out
both instruction fetch and data dependency traces. The patch also enables
configuring the TraceCPU to replay traces using the SE and FS script.

The replay run is designed to resume from checkpoint using atomic cpu to
restore state keeping it consistent with FS run flow. It then switches to
TraceCPU to replay the input traces.
2015-12-07 16:42:16 -06:00

287 lines
9.8 KiB
Python

# Copyright (c) 2012-2013 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Copyright (c) 2006-2008 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Steve Reinhardt
# Simple test script
#
# "m5 test.py"
import optparse
import sys
import os
import m5
from m5.defines import buildEnv
from m5.objects import *
from m5.util import addToPath, fatal
addToPath('../common')
addToPath('../ruby')
import Options
import Ruby
import Simulation
import CacheConfig
import CpuConfig
import MemConfig
from Caches import *
from cpu2000 import *
# Check if KVM support has been enabled, we might need to do VM
# configuration if that's the case.
have_kvm_support = 'BaseKvmCPU' in globals()
def is_kvm_cpu(cpu_class):
return have_kvm_support and cpu_class != None and \
issubclass(cpu_class, BaseKvmCPU)
def get_processes(options):
"""Interprets provided options and returns a list of processes"""
multiprocesses = []
inputs = []
outputs = []
errouts = []
pargs = []
workloads = options.cmd.split(';')
if options.input != "":
inputs = options.input.split(';')
if options.output != "":
outputs = options.output.split(';')
if options.errout != "":
errouts = options.errout.split(';')
if options.options != "":
pargs = options.options.split(';')
idx = 0
for wrkld in workloads:
process = LiveProcess()
process.executable = wrkld
process.cwd = os.getcwd()
if options.env:
with open(options.env, 'r') as f:
process.env = [line.rstrip() for line in f]
if len(pargs) > idx:
process.cmd = [wrkld] + pargs[idx].split()
else:
process.cmd = [wrkld]
if len(inputs) > idx:
process.input = inputs[idx]
if len(outputs) > idx:
process.output = outputs[idx]
if len(errouts) > idx:
process.errout = errouts[idx]
multiprocesses.append(process)
idx += 1
if options.smt:
assert(options.cpu_type == "detailed")
return multiprocesses, idx
else:
return multiprocesses, 1
parser = optparse.OptionParser()
Options.addCommonOptions(parser)
Options.addSEOptions(parser)
if '--ruby' in sys.argv:
Ruby.define_options(parser)
(options, args) = parser.parse_args()
if args:
print "Error: script doesn't take any positional arguments"
sys.exit(1)
multiprocesses = []
numThreads = 1
if options.bench:
apps = options.bench.split("-")
if len(apps) != options.num_cpus:
print "number of benchmarks not equal to set num_cpus!"
sys.exit(1)
for app in apps:
try:
if buildEnv['TARGET_ISA'] == 'alpha':
exec("workload = %s('alpha', 'tru64', '%s')" % (
app, options.spec_input))
elif buildEnv['TARGET_ISA'] == 'arm':
exec("workload = %s('arm_%s', 'linux', '%s')" % (
app, options.arm_iset, options.spec_input))
else:
exec("workload = %s(buildEnv['TARGET_ISA', 'linux', '%s')" % (
app, options.spec_input))
multiprocesses.append(workload.makeLiveProcess())
except:
print >>sys.stderr, "Unable to find workload for %s: %s" % (
buildEnv['TARGET_ISA'], app)
sys.exit(1)
elif options.cmd:
multiprocesses, numThreads = get_processes(options)
else:
print >> sys.stderr, "No workload specified. Exiting!\n"
sys.exit(1)
(CPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
CPUClass.numThreads = numThreads
# Check -- do not allow SMT with multiple CPUs
if options.smt and options.num_cpus > 1:
fatal("You cannot use SMT with multiple CPUs!")
np = options.num_cpus
system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
mem_mode = test_mem_mode,
mem_ranges = [AddrRange(options.mem_size)],
cache_line_size = options.cacheline_size)
if numThreads > 1:
system.multi_thread = True
# Create a top-level voltage domain
system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
# Create a source clock for the system and set the clock period
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
system.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
voltage_domain =
system.cpu_voltage_domain)
# If elastic tracing is enabled, then configure the cpu and attach the elastic
# trace probe
if options.elastic_trace_en:
CpuConfig.config_etrace(CPUClass, system.cpu, options)
# 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
if is_kvm_cpu(CPUClass) or is_kvm_cpu(FutureClass):
if buildEnv['TARGET_ISA'] == 'x86':
system.vm = KvmVM()
for process in multiprocesses:
process.useArchPT = True
process.kvmInSE = True
else:
fatal("KvmCPU can only be used in SE mode with x86")
# Sanity check
if options.fastmem:
if CPUClass != AtomicSimpleCPU:
fatal("Fastmem can only be used with atomic CPU!")
if (options.caches or options.l2cache):
fatal("You cannot use fastmem in combination with caches!")
if options.simpoint_profile:
if not options.fastmem:
# Atomic CPU checked with fastmem option already
fatal("SimPoint generation should be done with atomic cpu and fastmem")
if np > 1:
fatal("SimPoint generation not supported with more than one CPUs")
for i in xrange(np):
if options.smt:
system.cpu[i].workload = multiprocesses
elif len(multiprocesses) == 1:
system.cpu[i].workload = multiprocesses[0]
else:
system.cpu[i].workload = multiprocesses[i]
if options.fastmem:
system.cpu[i].fastmem = True
if options.simpoint_profile:
system.cpu[i].addSimPointProbe(options.simpoint_interval)
if options.checker:
system.cpu[i].addCheckerCpu()
system.cpu[i].createThreads()
if options.ruby:
if options.cpu_type == "atomic" or options.cpu_type == "AtomicSimpleCPU":
print >> sys.stderr, "Ruby does not work with atomic cpu!!"
sys.exit(1)
Ruby.create_system(options, False, system)
assert(options.num_cpus == len(system.ruby._cpu_ports))
system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
voltage_domain = system.voltage_domain)
for i in xrange(np):
ruby_port = system.ruby._cpu_ports[i]
# Create the interrupt controller and connect its ports to Ruby
# Note that the interrupt controller is always present but only
# in x86 does it have message ports that need to be connected
system.cpu[i].createInterruptController()
# Connect the cpu's cache ports to Ruby
system.cpu[i].icache_port = ruby_port.slave
system.cpu[i].dcache_port = ruby_port.slave
if buildEnv['TARGET_ISA'] == 'x86':
system.cpu[i].interrupts[0].pio = ruby_port.master
system.cpu[i].interrupts[0].int_master = ruby_port.slave
system.cpu[i].interrupts[0].int_slave = ruby_port.master
system.cpu[i].itb.walker.port = ruby_port.slave
system.cpu[i].dtb.walker.port = ruby_port.slave
else:
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)