d8fd09cc15
src/cpu/simple/timing.cc:
src/cpu/simple/timing.hh:
src/python/m5/__init__.py:
src/python/m5/config.py:
src/sim/main.cc:
src/sim/sim_events.cc:
src/sim/sim_events.hh:
src/sim/sim_object.cc:
src/sim/sim_object.hh:
Rename quiesce to drain.
--HG--
extra : convert_revision : fc3244a3934812e1edb8050f1f51f30382baf774
293 lines
11 KiB
Python
293 lines
11 KiB
Python
# Copyright (c) 2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Nathan Binkert
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# Steve Reinhardt
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import sys, os, time, atexit, optparse
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# import the SWIG-wrapped main C++ functions
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import cc_main
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# import a few SWIG-wrapped items (those that are likely to be used
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# directly by user scripts) completely into this module for
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# convenience
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from cc_main import simulate, SimLoopExitEvent, setCheckpointDir
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# import the m5 compile options
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import defines
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# define this here so we can use it right away if necessary
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def panic(string):
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print >>sys.stderr, 'panic:', string
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sys.exit(1)
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# Prepend given directory to system module search path. We may not
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# need this anymore if we can structure our config library more like a
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# Python package.
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def AddToPath(path):
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# if it's a relative path and we know what directory the current
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# python script is in, make the path relative to that directory.
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if not os.path.isabs(path) and sys.path[0]:
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path = os.path.join(sys.path[0], path)
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path = os.path.realpath(path)
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# sys.path[0] should always refer to the current script's directory,
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# so place the new dir right after that.
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sys.path.insert(1, path)
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# The m5 module's pointer to the parsed options object
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options = None
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# User should call this function after calling parse_args() to pass
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# parsed standard option values back into the m5 module for
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# processing.
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def setStandardOptions(_options):
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# Set module global var
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global options
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options = _options
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# tell C++ about output directory
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cc_main.setOutputDir(options.outdir)
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# Callback to set trace flags. Not necessarily the best way to do
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# things in the long run (particularly if we change how these global
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# options are handled).
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def setTraceFlags(option, opt_str, value, parser):
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objects.Trace.flags = value
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def setTraceStart(option, opt_str, value, parser):
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objects.Trace.start = value
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def setTraceFile(option, opt_str, value, parser):
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objects.Trace.file = value
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def noPCSymbol(option, opt_str, value, parser):
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objects.ExecutionTrace.pc_symbol = False
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def noPrintCycle(option, opt_str, value, parser):
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objects.ExecutionTrace.print_cycle = False
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def noPrintOpclass(option, opt_str, value, parser):
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objects.ExecutionTrace.print_opclass = False
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def noPrintThread(option, opt_str, value, parser):
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objects.ExecutionTrace.print_thread = False
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def noPrintEA(option, opt_str, value, parser):
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objects.ExecutionTrace.print_effaddr = False
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def noPrintData(option, opt_str, value, parser):
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objects.ExecutionTrace.print_data = False
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def printFetchseq(option, opt_str, value, parser):
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objects.ExecutionTrace.print_fetchseq = True
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def printCpseq(option, opt_str, value, parser):
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objects.ExecutionTrace.print_cpseq = True
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def dumpOnExit(option, opt_str, value, parser):
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objects.Trace.dump_on_exit = True
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def debugBreak(option, opt_str, value, parser):
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objects.Debug.break_cycles = value
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def statsTextFile(option, opt_str, value, parser):
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objects.Statistics.text_file = value
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# Standard optparse options. Need to be explicitly included by the
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# user script when it calls optparse.OptionParser().
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standardOptions = [
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optparse.make_option("--outdir", type="string", default="."),
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optparse.make_option("--traceflags", type="string", action="callback",
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callback=setTraceFlags),
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optparse.make_option("--tracestart", type="int", action="callback",
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callback=setTraceStart),
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optparse.make_option("--tracefile", type="string", action="callback",
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callback=setTraceFile),
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optparse.make_option("--nopcsymbol",
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action="callback", callback=noPCSymbol,
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help="Disable PC symbols in trace output"),
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optparse.make_option("--noprintcycle",
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action="callback", callback=noPrintCycle,
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help="Don't print cycle numbers in trace output"),
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optparse.make_option("--noprintopclass",
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action="callback", callback=noPrintOpclass,
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help="Don't print op class type in trace output"),
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optparse.make_option("--noprintthread",
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action="callback", callback=noPrintThread,
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help="Don't print thread number in trace output"),
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optparse.make_option("--noprinteffaddr",
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action="callback", callback=noPrintEA,
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help="Don't print effective address in trace output"),
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optparse.make_option("--noprintdata",
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action="callback", callback=noPrintData,
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help="Don't print result data in trace output"),
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optparse.make_option("--printfetchseq",
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action="callback", callback=printFetchseq,
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help="Print fetch sequence numbers in trace output"),
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optparse.make_option("--printcpseq",
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action="callback", callback=printCpseq,
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help="Print correct path sequence numbers in trace output"),
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optparse.make_option("--dumponexit",
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action="callback", callback=dumpOnExit,
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help="Dump trace buffer on exit"),
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optparse.make_option("--debugbreak", type="int", metavar="CYCLE",
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action="callback", callback=debugBreak,
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help="Cycle to create a breakpoint"),
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optparse.make_option("--statsfile", type="string", action="callback",
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callback=statsTextFile, metavar="FILE",
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help="Sets the output file for the statistics")
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]
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# make a SmartDict out of the build options for our local use
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import smartdict
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build_env = smartdict.SmartDict()
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build_env.update(defines.m5_build_env)
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# make a SmartDict out of the OS environment too
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env = smartdict.SmartDict()
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env.update(os.environ)
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# Function to provide to C++ so it can look up instances based on paths
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def resolveSimObject(name):
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obj = config.instanceDict[name]
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return obj.getCCObject()
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# The final hook to generate .ini files. Called from the user script
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# once the config is built.
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def instantiate(root):
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config.ticks_per_sec = float(root.clock.frequency)
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# ugly temporary hack to get output to config.ini
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sys.stdout = file(os.path.join(options.outdir, 'config.ini'), 'w')
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root.print_ini()
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sys.stdout.close() # close config.ini
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sys.stdout = sys.__stdout__ # restore to original
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cc_main.loadIniFile(resolveSimObject) # load config.ini into C++
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root.createCCObject()
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root.connectPorts()
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cc_main.finalInit()
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noDot = True # temporary until we fix dot
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if not noDot:
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dot = pydot.Dot()
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instance.outputDot(dot)
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dot.orientation = "portrait"
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dot.size = "8.5,11"
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dot.ranksep="equally"
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dot.rank="samerank"
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dot.write("config.dot")
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dot.write_ps("config.ps")
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# Export curTick to user script.
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def curTick():
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return cc_main.cvar.curTick
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# register our C++ exit callback function with Python
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atexit.register(cc_main.doExitCleanup)
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# This import allows user scripts to reference 'm5.objects.Foo' after
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# just doing an 'import m5' (without an 'import m5.objects'). May not
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# matter since most scripts will probably 'from m5.objects import *'.
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import objects
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def doDrain(root):
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drain_event = cc_main.createCountedDrain()
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unready_objects = root.startDrain(drain_event, True)
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# If we've got some objects that can't drain immediately, then simulate
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if unready_objects > 0:
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drain_event.setCount(unready_objects)
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simulate()
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cc_main.cleanupCountedDrain(drain_event)
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def resume(root):
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root.resume()
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def checkpoint(root):
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if not isinstance(root, objects.Root):
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raise TypeError, "Object is not a root object. Checkpoint must be called on a root object."
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doDrain(root)
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print "Writing checkpoint"
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cc_main.serializeAll()
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resume(root)
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def restoreCheckpoint(root):
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print "Restoring from checkpoint"
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cc_main.unserializeAll()
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def changeToAtomic(system):
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if not isinstance(system, objects.Root) and not isinstance(system, System):
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raise TypeError, "Object is not a root or system object. Checkpoint must be "
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"called on a root object."
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doDrain(system)
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print "Changing memory mode to atomic"
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system.changeTiming(cc_main.SimObject.Atomic)
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resume(system)
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def changeToTiming(system):
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if not isinstance(system, objects.Root) and not isinstance(system, System):
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raise TypeError, "Object is not a root or system object. Checkpoint must be "
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"called on a root object."
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doDrain(system)
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print "Changing memory mode to timing"
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system.changeTiming(cc_main.SimObject.Timing)
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resume(system)
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def switchCpus(cpuList):
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if not isinstance(cpuList, list):
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raise RuntimeError, "Must pass a list to this function"
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for i in cpuList:
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if not isinstance(i, tuple):
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raise RuntimeError, "List must have tuples of (oldCPU,newCPU)"
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[old_cpus, new_cpus] = zip(*cpuList)
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for cpu in old_cpus:
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if not isinstance(cpu, objects.BaseCPU):
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raise TypeError, "%s is not of type BaseCPU", cpu
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for cpu in new_cpus:
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if not isinstance(cpu, objects.BaseCPU):
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raise TypeError, "%s is not of type BaseCPU", cpu
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# Drain all of the individual CPUs
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drain_event = cc_main.createCountedDrain()
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unready_cpus = 0
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for old_cpu in old_cpus:
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unready_cpus += old_cpu.startDrain(drain_event, False)
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# If we've got some objects that can't drain immediately, then simulate
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if unready_cpus > 0:
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drain_event.setCount(unready_cpus)
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simulate()
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cc_main.cleanupCountedDrain(drain_event)
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# Now all of the CPUs are ready to be switched out
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for old_cpu in old_cpus:
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old_cpu._ccObject.switchOut()
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index = 0
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print "Switching CPUs"
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for new_cpu in new_cpus:
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new_cpu.takeOverFrom(old_cpus[index])
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new_cpu._ccObject.resume()
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index += 1
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