Alpha derived classes for kernel_stats.
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src/kern/alpha/kernel_stats.cc
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src/kern/alpha/kernel_stats.cc
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/*
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* Copyright (c) 2004-2005 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: Lisa Hsu
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* Nathan Binkert
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*/
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#include <map>
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#include <stack>
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#include <string>
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#include "kern/alpha/kernel_stats.hh"
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#include "arch/alpha/osfpal.hh"
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#include "base/trace.hh"
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#include "cpu/thread_context.hh"
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#include "kern/tru64/tru64_syscalls.hh"
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#include "sim/system.hh"
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using namespace std;
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using namespace Stats;
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namespace AlphaISA {
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namespace Kernel {
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const char *modestr[] = { "kernel", "user", "idle" };
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Statistics::Statistics(System *system)
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: ::Kernel::Statistics(system),
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idleProcess((Addr)-1), themode(kernel), lastModeTick(0)
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{
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}
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void
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Statistics::regStats(const string &_name)
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{
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::Kernel::Statistics::regStats(_name);
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_callpal
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.init(256)
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.name(name() + ".callpal")
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.desc("number of callpals executed")
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.flags(total | pdf | nozero | nonan)
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;
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for (int i = 0; i < PAL::NumCodes; ++i) {
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const char *str = PAL::name(i);
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if (str)
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_callpal.subname(i, str);
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}
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_hwrei
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.name(name() + ".inst.hwrei")
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.desc("number of hwrei instructions executed")
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;
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_mode
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.init(cpu_mode_num)
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.name(name() + ".mode_switch")
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.desc("number of protection mode switches")
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;
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for (int i = 0; i < cpu_mode_num; ++i)
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_mode.subname(i, modestr[i]);
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_modeGood
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.init(cpu_mode_num)
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.name(name() + ".mode_good")
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;
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for (int i = 0; i < cpu_mode_num; ++i)
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_modeGood.subname(i, modestr[i]);
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_modeFraction
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.name(name() + ".mode_switch_good")
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.desc("fraction of useful protection mode switches")
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.flags(total)
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;
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for (int i = 0; i < cpu_mode_num; ++i)
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_modeFraction.subname(i, modestr[i]);
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_modeFraction = _modeGood / _mode;
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_modeTicks
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.init(cpu_mode_num)
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.name(name() + ".mode_ticks")
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.desc("number of ticks spent at the given mode")
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.flags(pdf)
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;
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for (int i = 0; i < cpu_mode_num; ++i)
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_modeTicks.subname(i, modestr[i]);
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_swap_context
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.name(name() + ".swap_context")
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.desc("number of times the context was actually changed")
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;
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}
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void
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Statistics::setIdleProcess(Addr idlepcbb, ThreadContext *tc)
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{
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assert(themode == kernel);
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idleProcess = idlepcbb;
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themode = idle;
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changeMode(themode, tc);
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}
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void
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Statistics::changeMode(cpu_mode newmode, ThreadContext *tc)
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{
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_mode[newmode]++;
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if (newmode == themode)
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return;
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DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
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modestr[themode], modestr[newmode]);
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_modeGood[newmode]++;
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_modeTicks[themode] += curTick - lastModeTick;
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lastModeTick = curTick;
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themode = newmode;
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}
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void
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Statistics::mode(cpu_mode newmode, ThreadContext *tc)
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{
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Addr pcbb = tc->readMiscReg(AlphaISA::IPR_PALtemp23);
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if (newmode == kernel && pcbb == idleProcess)
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newmode = idle;
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changeMode(newmode, tc);
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}
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void
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Statistics::context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc)
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{
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assert(themode != user);
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_swap_context++;
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changeMode(newpcbb == idleProcess ? idle : kernel, tc);
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}
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void
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Statistics::callpal(int code, ThreadContext *tc)
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{
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if (!PAL::name(code))
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return;
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_callpal[code]++;
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switch (code) {
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case PAL::callsys: {
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int number = tc->readIntReg(0);
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if (SystemCalls<Tru64>::validSyscallNumber(number)) {
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int cvtnum = SystemCalls<Tru64>::convert(number);
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_syscall[cvtnum]++;
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}
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} break;
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}
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}
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void
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Statistics::serialize(ostream &os)
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{
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::Kernel::Statistics::serialize(os);
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int exemode = themode;
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SERIALIZE_SCALAR(exemode);
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SERIALIZE_SCALAR(idleProcess);
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SERIALIZE_SCALAR(lastModeTick);
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}
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void
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Statistics::unserialize(Checkpoint *cp, const string §ion)
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{
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::Kernel::Statistics::unserialize(cp, section);
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int exemode;
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UNSERIALIZE_SCALAR(exemode);
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UNSERIALIZE_SCALAR(idleProcess);
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UNSERIALIZE_SCALAR(lastModeTick);
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themode = (cpu_mode)exemode;
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}
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} /* end namespace AlphaISA::Kernel */
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} /* end namespace AlphaISA */
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96
src/kern/alpha/kernel_stats.hh
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96
src/kern/alpha/kernel_stats.hh
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/*
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* Copyright (c) 2004-2005 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: Lisa Hsu
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* Nathan Binkert
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*/
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#ifndef __ARCH_ALPHA_KERNEL_STATS_HH__
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#define __ARCH_ALPHA_KERNEL_STATS_HH__
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#include <map>
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#include <stack>
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#include <string>
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#include <vector>
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#include "cpu/static_inst.hh"
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#include "kern/base_kernel_stats.hh"
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class BaseCPU;
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class ThreadContext;
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class FnEvent;
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// What does kernel stats expect is included?
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class System;
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namespace AlphaISA {
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namespace Kernel {
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enum cpu_mode { kernel, user, idle, cpu_mode_num };
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extern const char *modestr[];
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class Statistics : public ::Kernel::Statistics
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{
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protected:
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Addr idleProcess;
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cpu_mode themode;
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Tick lastModeTick;
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void changeMode(cpu_mode newmode, ThreadContext *tc);
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private:
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Stats::Vector<> _callpal;
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// Stats::Vector<> _faults;
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Stats::Vector<> _mode;
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Stats::Vector<> _modeGood;
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Stats::Formula _modeFraction;
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Stats::Vector<> _modeTicks;
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Stats::Scalar<> _swap_context;
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public:
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Statistics(System *system);
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void regStats(const std::string &name);
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public:
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void mode(cpu_mode newmode, ThreadContext *tc);
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void context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc);
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void callpal(int code, ThreadContext *tc);
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void hwrei() { _hwrei++; }
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void setIdleProcess(Addr idle, ThreadContext *tc);
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public:
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void serialize(std::ostream &os);
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void unserialize(Checkpoint *cp, const std::string §ion);
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};
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} /* end namespace AlphaISA::Kernel */
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} /* end namespace AlphaISA */
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#endif // __ARCH_ALPHA_KERNEL_STATS_HH__
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