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/*
* Copyright (c) 2019-2020 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) 2003-2005 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.
*/
#include "base/statistics.hh"
#include <cassert>
#include <list>
#include <map>
#include <string>
#include <utility>
#include "base/callback.hh"
#include "base/logging.hh"
#include "sim/root.hh"
namespace gem5
{
namespace statistics
{
// We wrap these in a function to make sure they're built in time.
std::list<Info *> &
statsList()
{
static std::list<Info *> the_list;
return the_list;
}
MapType &
statsMap()
{
static MapType the_map;
return the_map;
}
void
InfoAccess::setInfo(Group *parent, Info *info)
{
panic_if(statsMap().find(this) != statsMap().end() ||
_info != nullptr,
"shouldn't register stat twice!");
// New-style stats are reachable through the hierarchy and
// shouldn't be added to the global lists.
if (parent) {
_info = info;
return;
}
statsList().push_back(info);
#ifndef NDEBUG
std::pair<MapType::iterator, bool> result =
#endif
statsMap().insert(std::make_pair(this, info));
assert(result.second && "this should never fail");
assert(statsMap().find(this) != statsMap().end());
}
void
InfoAccess::setParams(const StorageParams *params)
{
info()->setStorageParams(params);
}
void
InfoAccess::setInit()
{
info()->flags.set(init);
}
Info *
InfoAccess::info()
{
if (newStyleStats()) {
// New-style stats
return _info;
} else {
// Legacy stats
MapType::const_iterator i = statsMap().find(this);
assert(i != statsMap().end());
return (*i).second;
}
}
const Info *
InfoAccess::info() const
{
if (newStyleStats()) {
// New-style stats
return _info;
} else {
// Legacy stats
MapType::const_iterator i = statsMap().find(this);
assert(i != statsMap().end());
return (*i).second;
}
}
bool
InfoAccess::newStyleStats() const
{
return _info != nullptr;
}
Formula::Formula(Group *parent, const char *name, const char *desc)
: DataWrapVec<Formula, FormulaInfoProxy>(
parent, name, units::Unspecified::get(), desc)
{
}
Formula::Formula(Group *parent, const char *name, const units::Base *unit,
const char *desc)
: DataWrapVec<Formula, FormulaInfoProxy>(parent, name, unit, desc)
{
}
Formula::Formula(Group *parent, const char *name, const char *desc,
const Temp &r)
: DataWrapVec<Formula, FormulaInfoProxy>(
parent, name, units::Unspecified::get(), desc)
{
*this = r;
}
Formula::Formula(Group *parent, const char *name, const units::Base *unit,
const char *desc, const Temp &r)
: DataWrapVec<Formula, FormulaInfoProxy>(parent, name, unit, desc)
{
*this = r;
}
const Formula &
Formula::operator=(const Temp &r)
{
assert(!root && "Can't change formulas");
root = r.getNodePtr();
setInit();
assert(size());
return *this;
}
const Formula &
Formula::operator+=(Temp r)
{
if (root)
root = NodePtr(new BinaryNode<std::plus<Result> >(root, r));
else {
root = r.getNodePtr();
setInit();
}
assert(size());
return *this;
}
const Formula &
Formula::operator/=(Temp r)
{
assert (root);
root = NodePtr(new BinaryNode<std::divides<Result> >(root, r));
assert(size());
return *this;
}
void
Formula::result(VResult &vec) const
{
if (root)
vec = root->result();
}
Result
Formula::total() const
{
return root ? root->total() : 0.0;
}
size_type
Formula::size() const
{
if (!root)
return 0;
else
return root->size();
}
void
Formula::reset()
{
}
bool
Formula::zero() const
{
VResult vec;
result(vec);
for (VResult::size_type i = 0; i < vec.size(); ++i)
if (vec[i] != 0.0)
return false;
return true;
}
std::string
Formula::str() const
{
return root ? root->str() : "";
}
Handler resetHandler = NULL;
Handler dumpHandler = NULL;
void
registerHandlers(Handler reset_handler, Handler dump_handler)
{
resetHandler = reset_handler;
dumpHandler = dump_handler;
}
CallbackQueue dumpQueue;
CallbackQueue resetQueue;
void
processResetQueue()
{
resetQueue.process();
}
void
processDumpQueue()
{
dumpQueue.process();
}
void
registerResetCallback(const std::function<void()> &callback)
{
resetQueue.push_back(callback);
}
bool _enabled = false;
bool
enabled()
{
return _enabled;
}
void
enable()
{
if (_enabled)
fatal("Stats are already enabled");
_enabled = true;
}
void
dump()
{
if (dumpHandler)
dumpHandler();
else
fatal("No registered statistics::dump handler");
}
void
reset()
{
if (resetHandler)
resetHandler();
else
fatal("No registered statistics::reset handler");
}
const Info *
resolve(const std::string &name)
{
const auto &it = nameMap().find(name);
if (it != nameMap().cend()) {
return it->second;
} else {
return Root::root()->resolveStat(name);
}
}
void
registerDumpCallback(const std::function<void()> &callback)
{
dumpQueue.push_back(callback);
}
} // namespace statistics
void
debugDumpStats()
{
statistics::dump();
}
} // namespace gem5