9c901225f8
1) return the periodicity of checkpoints back into the code (i.e. make m5 checkpoint n m meaningful again).
2) to do this, i had to much around with being able to repeatedly schedule and SimLoopExitEvent, which led to changes in how exit simloop events are handled to make this easier.
src/arch/alpha/isa/decoder.isa:
src/mem/cache/cache_impl.hh:
modify arg. order for new calling convention of exitSimLoop.
src/cpu/base.cc:
src/sim/main.cc:
src/sim/pseudo_inst.cc:
src/sim/root.cc:
now, instead of creating a new SimLoopExitEvent, call a wrapper schedExitSimLoop which handles all the default args.
src/sim/sim_events.cc:
src/sim/sim_events.hh:
src/sim/sim_exit.hh:
add the periodicity of checkpointing back into the code.
to facilitate this, there are now two wrappers (instead of just overloading exitSimLoop). exitSimLoop is only for exiting NOW (i.e. at curTick), while schedExitSimLoop schedules and exit event for the future.
--HG--
extra : convert_revision : c61f4bf05517172edd2c83368fd10bb0f0678029
161 lines
4.2 KiB
C++
161 lines
4.2 KiB
C++
/*
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* Copyright (c) 2002-2005 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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*/
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#include <cstring>
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#include <fstream>
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#include <list>
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#include <string>
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#include <vector>
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#include "base/misc.hh"
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#include "base/output.hh"
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#include "sim/builder.hh"
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#include "sim/host.hh"
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#include "sim/sim_events.hh"
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#include "sim/sim_exit.hh"
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#include "sim/sim_object.hh"
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#include "sim/root.hh"
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using namespace std;
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Tick curTick = 0;
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ostream *outputStream;
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ostream *configStream;
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/// The simulated frequency of curTick. (This is only here for a short time)
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Tick ticksPerSecond;
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namespace Clock {
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/// The simulated frequency of curTick. (In ticks per second)
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Tick Frequency;
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namespace Float {
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double s;
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double ms;
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double us;
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double ns;
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double ps;
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double Hz;
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double kHz;
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double MHz;
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double GHZ;
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/* namespace Float */ }
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namespace Int {
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Tick s;
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Tick ms;
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Tick us;
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Tick ns;
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Tick ps;
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/* namespace Float */ }
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/* namespace Clock */ }
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// Dummy Object
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class Root : public SimObject
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{
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private:
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Tick max_tick;
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Tick progress_interval;
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public:
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Root(const std::string &name, Tick maxtick, Tick pi)
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: SimObject(name), max_tick(maxtick), progress_interval(pi)
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{}
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virtual void startup();
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};
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void
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Root::startup()
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{
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if (max_tick != 0)
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schedExitSimLoop("reached maximum cycle count", curTick + max_tick);
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if (progress_interval != 0)
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new ProgressEvent(&mainEventQueue, progress_interval);
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}
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BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
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Param<Tick> clock;
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Param<Tick> max_tick;
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Param<Tick> progress_interval;
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Param<string> output_file;
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END_DECLARE_SIM_OBJECT_PARAMS(Root)
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BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
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INIT_PARAM(clock, "tick frequency"),
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INIT_PARAM(max_tick, "maximum simulation time"),
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INIT_PARAM(progress_interval, "print a progress message"),
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INIT_PARAM(output_file, "file to dump simulator output to")
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END_INIT_SIM_OBJECT_PARAMS(Root)
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CREATE_SIM_OBJECT(Root)
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{
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static bool created = false;
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if (created)
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panic("only one root object allowed!");
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created = true;
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outputStream = simout.find(output_file);
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Root *root = new Root(getInstanceName(), max_tick, progress_interval);
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using namespace Clock;
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Frequency = clock;
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Float::s = static_cast<double>(Frequency);
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Float::ms = Float::s / 1.0e3;
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Float::us = Float::s / 1.0e6;
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Float::ns = Float::s / 1.0e9;
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Float::ps = Float::s / 1.0e12;
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Float::Hz = 1.0 / Float::s;
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Float::kHz = 1.0 / Float::ms;
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Float::MHz = 1.0 / Float::us;
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Float::GHZ = 1.0 / Float::ns;
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Int::s = Frequency;
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Int::ms = Int::s / 1000;
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Int::us = Int::ms / 1000;
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Int::ns = Int::us / 1000;
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Int::ps = Int::ns / 1000;
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return root;
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}
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REGISTER_SIM_OBJECT("Root", Root)
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