scheduler.cc revision 13329
112953Sgabeblack@google.com/* 212953Sgabeblack@google.com * Copyright 2018 Google, Inc. 312953Sgabeblack@google.com * 412953Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 512953Sgabeblack@google.com * modification, are permitted provided that the following conditions are 612953Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 712953Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 812953Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 912953Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1012953Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1112953Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1212953Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1312953Sgabeblack@google.com * this software without specific prior written permission. 1412953Sgabeblack@google.com * 1512953Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612953Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712953Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812953Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912953Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012953Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112953Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212953Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312953Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412953Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512953Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612953Sgabeblack@google.com * 2712953Sgabeblack@google.com * Authors: Gabe Black 2812953Sgabeblack@google.com */ 2912953Sgabeblack@google.com 3012953Sgabeblack@google.com#include "systemc/core/scheduler.hh" 3112953Sgabeblack@google.com 3212953Sgabeblack@google.com#include "base/fiber.hh" 3312954Sgabeblack@google.com#include "base/logging.hh" 3412954Sgabeblack@google.com#include "sim/eventq.hh" 3512982Sgabeblack@google.com#include "systemc/core/kernel.hh" 3613317Sgabeblack@google.com#include "systemc/ext/core/messages.hh" 3712982Sgabeblack@google.com#include "systemc/ext/core/sc_main.hh" 3813182Sgabeblack@google.com#include "systemc/ext/utils/sc_report.hh" 3913182Sgabeblack@google.com#include "systemc/ext/utils/sc_report_handler.hh" 4013312Sgabeblack@google.com#include "systemc/utils/report.hh" 4113245Sgabeblack@google.com#include "systemc/utils/tracefile.hh" 4212953Sgabeblack@google.com 4312953Sgabeblack@google.comnamespace sc_gem5 4412953Sgabeblack@google.com{ 4512953Sgabeblack@google.com 4612954Sgabeblack@google.comScheduler::Scheduler() : 4712962Sgabeblack@google.com eq(nullptr), readyEvent(this, false, ReadyPriority), 4812961Sgabeblack@google.com pauseEvent(this, false, PausePriority), 4912961Sgabeblack@google.com stopEvent(this, false, StopPriority), 5013182Sgabeblack@google.com scMain(nullptr), _throwToScMain(nullptr), 5112987Sgabeblack@google.com starvationEvent(this, false, StarvationPriority), 5213203Sgabeblack@google.com _elaborationDone(false), _started(false), _stopNow(false), 5313203Sgabeblack@google.com _status(StatusOther), maxTickEvent(this, false, MaxTickPriority), 5413245Sgabeblack@google.com timeAdvancesEvent(this, false, TimeAdvancesPriority), _numCycles(0), 5513245Sgabeblack@google.com _changeStamp(0), _current(nullptr), initDone(false), runOnce(false) 5612954Sgabeblack@google.com{} 5712953Sgabeblack@google.com 5813072Sgabeblack@google.comScheduler::~Scheduler() 5913072Sgabeblack@google.com{ 6013072Sgabeblack@google.com // Clear out everything that belongs to us to make sure nobody tries to 6113072Sgabeblack@google.com // clear themselves out after the scheduler goes away. 6213076Sgabeblack@google.com clear(); 6313076Sgabeblack@google.com} 6413072Sgabeblack@google.com 6513076Sgabeblack@google.comvoid 6613076Sgabeblack@google.comScheduler::clear() 6713076Sgabeblack@google.com{ 6813072Sgabeblack@google.com // Delta notifications. 6913144Sgabeblack@google.com while (!deltas.empty()) 7013144Sgabeblack@google.com deltas.front()->deschedule(); 7113072Sgabeblack@google.com 7213072Sgabeblack@google.com // Timed notifications. 7313076Sgabeblack@google.com for (auto &tsp: timeSlots) { 7413076Sgabeblack@google.com TimeSlot *&ts = tsp.second; 7513144Sgabeblack@google.com while (!ts->events.empty()) 7613144Sgabeblack@google.com ts->events.front()->deschedule(); 7713088Sgabeblack@google.com deschedule(ts); 7813072Sgabeblack@google.com } 7913076Sgabeblack@google.com timeSlots.clear(); 8013072Sgabeblack@google.com 8113072Sgabeblack@google.com // gem5 events. 8213072Sgabeblack@google.com if (readyEvent.scheduled()) 8313088Sgabeblack@google.com deschedule(&readyEvent); 8413072Sgabeblack@google.com if (pauseEvent.scheduled()) 8513088Sgabeblack@google.com deschedule(&pauseEvent); 8613072Sgabeblack@google.com if (stopEvent.scheduled()) 8713088Sgabeblack@google.com deschedule(&stopEvent); 8813072Sgabeblack@google.com if (starvationEvent.scheduled()) 8913088Sgabeblack@google.com deschedule(&starvationEvent); 9013072Sgabeblack@google.com if (maxTickEvent.scheduled()) 9113088Sgabeblack@google.com deschedule(&maxTickEvent); 9213245Sgabeblack@google.com if (timeAdvancesEvent.scheduled()) 9313245Sgabeblack@google.com deschedule(&timeAdvancesEvent); 9413072Sgabeblack@google.com 9513072Sgabeblack@google.com Process *p; 9613072Sgabeblack@google.com while ((p = initList.getNext())) 9713072Sgabeblack@google.com p->popListNode(); 9813176Sgabeblack@google.com while ((p = readyListMethods.getNext())) 9913176Sgabeblack@google.com p->popListNode(); 10013176Sgabeblack@google.com while ((p = readyListThreads.getNext())) 10113072Sgabeblack@google.com p->popListNode(); 10213072Sgabeblack@google.com 10313072Sgabeblack@google.com Channel *c; 10413072Sgabeblack@google.com while ((c = updateList.getNext())) 10513072Sgabeblack@google.com c->popListNode(); 10613072Sgabeblack@google.com} 10713072Sgabeblack@google.com 10812953Sgabeblack@google.comvoid 10913067Sgabeblack@google.comScheduler::initPhase() 11012953Sgabeblack@google.com{ 11113194Sgabeblack@google.com for (Process *p = initList.getNext(); p; p = initList.getNext()) { 11212957Sgabeblack@google.com p->popListNode(); 11313180Sgabeblack@google.com 11413194Sgabeblack@google.com if (p->dontInitialize()) { 11513194Sgabeblack@google.com if (!p->hasStaticSensitivities() && !p->internal()) { 11613317Sgabeblack@google.com SC_REPORT_WARNING(sc_core::SC_ID_DISABLE_WILL_ORPHAN_PROCESS_, 11713317Sgabeblack@google.com p->name()); 11813194Sgabeblack@google.com } 11913194Sgabeblack@google.com } else { 12013194Sgabeblack@google.com p->ready(); 12113180Sgabeblack@google.com } 12212957Sgabeblack@google.com } 12312957Sgabeblack@google.com 12413186Sgabeblack@google.com runUpdate(); 12513186Sgabeblack@google.com runDelta(); 12613067Sgabeblack@google.com 12712985Sgabeblack@google.com for (auto ets: eventsToSchedule) 12812985Sgabeblack@google.com eq->schedule(ets.first, ets.second); 12912985Sgabeblack@google.com eventsToSchedule.clear(); 13012985Sgabeblack@google.com 13113068Sgabeblack@google.com if (_started) { 13213096Sgabeblack@google.com if (!runToTime && starved()) 13313068Sgabeblack@google.com scheduleStarvationEvent(); 13413069Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 13513068Sgabeblack@google.com } 13612961Sgabeblack@google.com 13713067Sgabeblack@google.com initDone = true; 13813186Sgabeblack@google.com 13913186Sgabeblack@google.com status(StatusOther); 14013245Sgabeblack@google.com 14113245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 14212957Sgabeblack@google.com} 14312957Sgabeblack@google.com 14412957Sgabeblack@google.comvoid 14512957Sgabeblack@google.comScheduler::reg(Process *p) 14612957Sgabeblack@google.com{ 14713067Sgabeblack@google.com if (initDone) { 14813194Sgabeblack@google.com // If not marked as dontInitialize, mark as ready. 14913194Sgabeblack@google.com if (!p->dontInitialize()) 15013194Sgabeblack@google.com p->ready(); 15112957Sgabeblack@google.com } else { 15212957Sgabeblack@google.com // Otherwise, record that this process should be initialized once we 15312957Sgabeblack@google.com // get there. 15412957Sgabeblack@google.com initList.pushLast(p); 15512957Sgabeblack@google.com } 15612957Sgabeblack@google.com} 15712957Sgabeblack@google.com 15812957Sgabeblack@google.comvoid 15912953Sgabeblack@google.comScheduler::yield() 16012953Sgabeblack@google.com{ 16113176Sgabeblack@google.com // Pull a process from the active list. 16213209Sgabeblack@google.com _current = getNextReady(); 16312953Sgabeblack@google.com if (!_current) { 16412953Sgabeblack@google.com // There are no more processes, so return control to evaluate. 16512953Sgabeblack@google.com Fiber::primaryFiber()->run(); 16612953Sgabeblack@google.com } else { 16712953Sgabeblack@google.com _current->popListNode(); 16813328Sgabeblack@google.com _current->scheduled(false); 16912953Sgabeblack@google.com // Switch to whatever Fiber is supposed to run this process. All 17012953Sgabeblack@google.com // Fibers which aren't running should be parked at this line. 17112953Sgabeblack@google.com _current->fiber()->run(); 17212961Sgabeblack@google.com // If the current process needs to be manually started, start it. 17313093Sgabeblack@google.com if (_current && _current->needsStart()) { 17413093Sgabeblack@google.com _current->needsStart(false); 17513308Sgabeblack@google.com // If a process hasn't started yet, "resetting" it just starts it 17613308Sgabeblack@google.com // and signals its reset event. 17713308Sgabeblack@google.com if (_current->inReset()) 17813308Sgabeblack@google.com _current->resetEvent().notify(); 17913182Sgabeblack@google.com try { 18013182Sgabeblack@google.com _current->run(); 18113182Sgabeblack@google.com } catch (...) { 18213182Sgabeblack@google.com throwToScMain(); 18313182Sgabeblack@google.com } 18413093Sgabeblack@google.com } 18512953Sgabeblack@google.com } 18613259Sgabeblack@google.com if (_current && !_current->needsStart()) { 18713259Sgabeblack@google.com if (_current->excWrapper) { 18813259Sgabeblack@google.com auto ew = _current->excWrapper; 18913259Sgabeblack@google.com _current->excWrapper = nullptr; 19013259Sgabeblack@google.com ew->throw_it(); 19113260Sgabeblack@google.com } else if (_current->inReset()) { 19213259Sgabeblack@google.com _current->reset(false); 19313259Sgabeblack@google.com } 19412995Sgabeblack@google.com } 19512953Sgabeblack@google.com} 19612953Sgabeblack@google.com 19712953Sgabeblack@google.comvoid 19812954Sgabeblack@google.comScheduler::ready(Process *p) 19912953Sgabeblack@google.com{ 20013154Sgabeblack@google.com if (_stopNow) 20113154Sgabeblack@google.com return; 20213154Sgabeblack@google.com 20313328Sgabeblack@google.com p->scheduled(true); 20413328Sgabeblack@google.com 20513176Sgabeblack@google.com if (p->procKind() == ::sc_core::SC_METHOD_PROC_) 20613176Sgabeblack@google.com readyListMethods.pushLast(p); 20712954Sgabeblack@google.com else 20813176Sgabeblack@google.com readyListThreads.pushLast(p); 20912953Sgabeblack@google.com 21013244Sgabeblack@google.com if (!inEvaluate()) 21113244Sgabeblack@google.com scheduleReadyEvent(); 21212954Sgabeblack@google.com} 21312954Sgabeblack@google.com 21412954Sgabeblack@google.comvoid 21513133Sgabeblack@google.comScheduler::resume(Process *p) 21613133Sgabeblack@google.com{ 21713133Sgabeblack@google.com if (initDone) 21813133Sgabeblack@google.com ready(p); 21913133Sgabeblack@google.com else 22013133Sgabeblack@google.com initList.pushLast(p); 22113133Sgabeblack@google.com} 22213133Sgabeblack@google.com 22313133Sgabeblack@google.combool 22413176Sgabeblack@google.comlistContains(ListNode *list, ListNode *target) 22513176Sgabeblack@google.com{ 22613176Sgabeblack@google.com ListNode *n = list->nextListNode; 22713176Sgabeblack@google.com while (n != list) 22813176Sgabeblack@google.com if (n == target) 22913176Sgabeblack@google.com return true; 23013176Sgabeblack@google.com return false; 23113176Sgabeblack@google.com} 23213176Sgabeblack@google.com 23313176Sgabeblack@google.combool 23413133Sgabeblack@google.comScheduler::suspend(Process *p) 23513133Sgabeblack@google.com{ 23613176Sgabeblack@google.com bool was_ready; 23713133Sgabeblack@google.com if (initDone) { 23813194Sgabeblack@google.com // After initialization, check if we're on a ready list. 23913176Sgabeblack@google.com was_ready = (p->nextListNode != nullptr); 24013133Sgabeblack@google.com p->popListNode(); 24113133Sgabeblack@google.com } else { 24213194Sgabeblack@google.com // Nothing is ready before init. 24313194Sgabeblack@google.com was_ready = false; 24413133Sgabeblack@google.com } 24513176Sgabeblack@google.com return was_ready; 24613133Sgabeblack@google.com} 24713133Sgabeblack@google.com 24813133Sgabeblack@google.comvoid 24912954Sgabeblack@google.comScheduler::requestUpdate(Channel *c) 25012954Sgabeblack@google.com{ 25112954Sgabeblack@google.com updateList.pushLast(c); 25213244Sgabeblack@google.com if (!inEvaluate()) 25313244Sgabeblack@google.com scheduleReadyEvent(); 25412954Sgabeblack@google.com} 25512954Sgabeblack@google.com 25612954Sgabeblack@google.comvoid 25712954Sgabeblack@google.comScheduler::scheduleReadyEvent() 25812954Sgabeblack@google.com{ 25912954Sgabeblack@google.com // Schedule the evaluate and update phases. 26012954Sgabeblack@google.com if (!readyEvent.scheduled()) { 26113069Sgabeblack@google.com schedule(&readyEvent); 26212987Sgabeblack@google.com if (starvationEvent.scheduled()) 26313069Sgabeblack@google.com deschedule(&starvationEvent); 26412987Sgabeblack@google.com } 26512987Sgabeblack@google.com} 26612987Sgabeblack@google.com 26712987Sgabeblack@google.comvoid 26812987Sgabeblack@google.comScheduler::scheduleStarvationEvent() 26912987Sgabeblack@google.com{ 27012987Sgabeblack@google.com if (!starvationEvent.scheduled()) { 27113069Sgabeblack@google.com schedule(&starvationEvent); 27212987Sgabeblack@google.com if (readyEvent.scheduled()) 27313069Sgabeblack@google.com deschedule(&readyEvent); 27412954Sgabeblack@google.com } 27512954Sgabeblack@google.com} 27612954Sgabeblack@google.com 27712954Sgabeblack@google.comvoid 27812954Sgabeblack@google.comScheduler::runReady() 27912954Sgabeblack@google.com{ 28013245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 28113245Sgabeblack@google.com 28213176Sgabeblack@google.com bool empty = readyListMethods.empty() && readyListThreads.empty(); 28313140Sgabeblack@google.com lastReadyTick = getCurTick(); 28412954Sgabeblack@google.com 28512954Sgabeblack@google.com // The evaluation phase. 28613245Sgabeblack@google.com status(StatusEvaluate); 28712953Sgabeblack@google.com do { 28813209Sgabeblack@google.com yield(); 28913209Sgabeblack@google.com } while (getNextReady()); 29013275Sgabeblack@google.com _current = nullptr; 29112954Sgabeblack@google.com 29213140Sgabeblack@google.com if (!empty) { 29312954Sgabeblack@google.com _numCycles++; 29413140Sgabeblack@google.com _changeStamp++; 29513140Sgabeblack@google.com } 29612954Sgabeblack@google.com 29713244Sgabeblack@google.com if (_stopNow) { 29813244Sgabeblack@google.com status(StatusOther); 29913154Sgabeblack@google.com return; 30013244Sgabeblack@google.com } 30113154Sgabeblack@google.com 30213186Sgabeblack@google.com runUpdate(); 30313245Sgabeblack@google.com if (!traceFiles.empty()) 30413245Sgabeblack@google.com trace(true); 30513186Sgabeblack@google.com runDelta(); 30613061Sgabeblack@google.com 30713096Sgabeblack@google.com if (!runToTime && starved()) 30813096Sgabeblack@google.com scheduleStarvationEvent(); 30913096Sgabeblack@google.com 31013064Sgabeblack@google.com if (runOnce) 31113064Sgabeblack@google.com schedulePause(); 31213186Sgabeblack@google.com 31313186Sgabeblack@google.com status(StatusOther); 31412953Sgabeblack@google.com} 31512953Sgabeblack@google.com 31612953Sgabeblack@google.comvoid 31713186Sgabeblack@google.comScheduler::runUpdate() 31812953Sgabeblack@google.com{ 31913186Sgabeblack@google.com status(StatusUpdate); 32013186Sgabeblack@google.com 32113188Sgabeblack@google.com try { 32213188Sgabeblack@google.com Channel *channel = updateList.getNext(); 32313188Sgabeblack@google.com while (channel) { 32413188Sgabeblack@google.com channel->popListNode(); 32513188Sgabeblack@google.com channel->update(); 32613188Sgabeblack@google.com channel = updateList.getNext(); 32713188Sgabeblack@google.com } 32813188Sgabeblack@google.com } catch (...) { 32913188Sgabeblack@google.com throwToScMain(); 33012954Sgabeblack@google.com } 33112953Sgabeblack@google.com} 33212953Sgabeblack@google.com 33312961Sgabeblack@google.comvoid 33413186Sgabeblack@google.comScheduler::runDelta() 33513186Sgabeblack@google.com{ 33613186Sgabeblack@google.com status(StatusDelta); 33713188Sgabeblack@google.com 33813188Sgabeblack@google.com try { 33913188Sgabeblack@google.com while (!deltas.empty()) 34013289Sgabeblack@google.com deltas.back()->run(); 34113188Sgabeblack@google.com } catch (...) { 34213188Sgabeblack@google.com throwToScMain(); 34313188Sgabeblack@google.com } 34413186Sgabeblack@google.com} 34513186Sgabeblack@google.com 34613186Sgabeblack@google.comvoid 34712961Sgabeblack@google.comScheduler::pause() 34812961Sgabeblack@google.com{ 34913186Sgabeblack@google.com status(StatusPaused); 35012982Sgabeblack@google.com kernel->status(::sc_core::SC_PAUSED); 35113061Sgabeblack@google.com runOnce = false; 35213182Sgabeblack@google.com if (scMain && !scMain->finished()) 35313182Sgabeblack@google.com scMain->run(); 35412961Sgabeblack@google.com} 35512961Sgabeblack@google.com 35612961Sgabeblack@google.comvoid 35712961Sgabeblack@google.comScheduler::stop() 35812961Sgabeblack@google.com{ 35913186Sgabeblack@google.com status(StatusStopped); 36012982Sgabeblack@google.com kernel->stop(); 36113074Sgabeblack@google.com 36213076Sgabeblack@google.com clear(); 36313074Sgabeblack@google.com 36413061Sgabeblack@google.com runOnce = false; 36513182Sgabeblack@google.com if (scMain && !scMain->finished()) 36613182Sgabeblack@google.com scMain->run(); 36712961Sgabeblack@google.com} 36812961Sgabeblack@google.com 36912961Sgabeblack@google.comvoid 37012961Sgabeblack@google.comScheduler::start(Tick max_tick, bool run_to_time) 37112961Sgabeblack@google.com{ 37212961Sgabeblack@google.com // We should be running from sc_main. Keep track of that Fiber to return 37312961Sgabeblack@google.com // to later. 37412961Sgabeblack@google.com scMain = Fiber::currentFiber(); 37512961Sgabeblack@google.com 37612961Sgabeblack@google.com _started = true; 37713186Sgabeblack@google.com status(StatusOther); 37812987Sgabeblack@google.com runToTime = run_to_time; 37912961Sgabeblack@google.com 38012961Sgabeblack@google.com maxTick = max_tick; 38113140Sgabeblack@google.com lastReadyTick = getCurTick(); 38212961Sgabeblack@google.com 38313067Sgabeblack@google.com if (initDone) { 38413096Sgabeblack@google.com if (!runToTime && starved()) 38513068Sgabeblack@google.com scheduleStarvationEvent(); 38612982Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 38712982Sgabeblack@google.com } 38812961Sgabeblack@google.com 38913069Sgabeblack@google.com schedule(&maxTickEvent, maxTick); 39013245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 39113069Sgabeblack@google.com 39212961Sgabeblack@google.com // Return to gem5 to let it run events, etc. 39312961Sgabeblack@google.com Fiber::primaryFiber()->run(); 39412961Sgabeblack@google.com 39512961Sgabeblack@google.com if (pauseEvent.scheduled()) 39613088Sgabeblack@google.com deschedule(&pauseEvent); 39712961Sgabeblack@google.com if (stopEvent.scheduled()) 39813088Sgabeblack@google.com deschedule(&stopEvent); 39912961Sgabeblack@google.com if (maxTickEvent.scheduled()) 40013088Sgabeblack@google.com deschedule(&maxTickEvent); 40112987Sgabeblack@google.com if (starvationEvent.scheduled()) 40213088Sgabeblack@google.com deschedule(&starvationEvent); 40313182Sgabeblack@google.com 40413182Sgabeblack@google.com if (_throwToScMain) { 40513182Sgabeblack@google.com const ::sc_core::sc_report *to_throw = _throwToScMain; 40613182Sgabeblack@google.com _throwToScMain = nullptr; 40713182Sgabeblack@google.com throw *to_throw; 40813182Sgabeblack@google.com } 40912961Sgabeblack@google.com} 41012961Sgabeblack@google.com 41112961Sgabeblack@google.comvoid 41213061Sgabeblack@google.comScheduler::oneCycle() 41313061Sgabeblack@google.com{ 41413061Sgabeblack@google.com runOnce = true; 41513095Sgabeblack@google.com scheduleReadyEvent(); 41613061Sgabeblack@google.com start(::MaxTick, false); 41713061Sgabeblack@google.com} 41813061Sgabeblack@google.com 41913061Sgabeblack@google.comvoid 42012961Sgabeblack@google.comScheduler::schedulePause() 42112961Sgabeblack@google.com{ 42212961Sgabeblack@google.com if (pauseEvent.scheduled()) 42312961Sgabeblack@google.com return; 42412961Sgabeblack@google.com 42513088Sgabeblack@google.com schedule(&pauseEvent); 42612961Sgabeblack@google.com} 42712961Sgabeblack@google.com 42812961Sgabeblack@google.comvoid 42913264Sgabeblack@google.comScheduler::throwToScMain() 43013182Sgabeblack@google.com{ 43113264Sgabeblack@google.com ::sc_core::sc_report report = reportifyException(); 43213264Sgabeblack@google.com _throwToScMain = &report; 43313188Sgabeblack@google.com status(StatusOther); 43413182Sgabeblack@google.com scMain->run(); 43513182Sgabeblack@google.com} 43613182Sgabeblack@google.com 43713182Sgabeblack@google.comvoid 43812961Sgabeblack@google.comScheduler::scheduleStop(bool finish_delta) 43912961Sgabeblack@google.com{ 44012961Sgabeblack@google.com if (stopEvent.scheduled()) 44112961Sgabeblack@google.com return; 44212961Sgabeblack@google.com 44312961Sgabeblack@google.com if (!finish_delta) { 44413154Sgabeblack@google.com _stopNow = true; 44513076Sgabeblack@google.com // If we're not supposed to finish the delta cycle, flush all 44613076Sgabeblack@google.com // pending activity. 44713076Sgabeblack@google.com clear(); 44812961Sgabeblack@google.com } 44913088Sgabeblack@google.com schedule(&stopEvent); 45012961Sgabeblack@google.com} 45112961Sgabeblack@google.com 45213245Sgabeblack@google.comvoid 45313245Sgabeblack@google.comScheduler::trace(bool delta) 45413245Sgabeblack@google.com{ 45513245Sgabeblack@google.com for (auto tf: traceFiles) 45613245Sgabeblack@google.com tf->trace(delta); 45713245Sgabeblack@google.com} 45813245Sgabeblack@google.com 45912953Sgabeblack@google.comScheduler scheduler; 46013329Sgabeblack@google.comProcess *getCurrentProcess() { return scheduler.current(); } 46112953Sgabeblack@google.com 46213182Sgabeblack@google.comnamespace { 46313182Sgabeblack@google.com 46413182Sgabeblack@google.comvoid 46513182Sgabeblack@google.comthrowingReportHandler(const ::sc_core::sc_report &r, 46613182Sgabeblack@google.com const ::sc_core::sc_actions &) 46713182Sgabeblack@google.com{ 46813182Sgabeblack@google.com throw r; 46913182Sgabeblack@google.com} 47013182Sgabeblack@google.com 47113182Sgabeblack@google.com} // anonymous namespace 47213182Sgabeblack@google.com 47313264Sgabeblack@google.comconst ::sc_core::sc_report 47413182Sgabeblack@google.comreportifyException() 47513182Sgabeblack@google.com{ 47613312Sgabeblack@google.com ::sc_core::sc_report_handler_proc old_handler = reportHandlerProc; 47713182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(&throwingReportHandler); 47813182Sgabeblack@google.com 47913182Sgabeblack@google.com try { 48013182Sgabeblack@google.com try { 48113182Sgabeblack@google.com // Rethrow the current exception so we can catch it and throw an 48213182Sgabeblack@google.com // sc_report instead if it's not a type we recognize/can handle. 48313182Sgabeblack@google.com throw; 48413182Sgabeblack@google.com } catch (const ::sc_core::sc_report &) { 48513182Sgabeblack@google.com // It's already a sc_report, so nothing to do. 48613182Sgabeblack@google.com throw; 48713182Sgabeblack@google.com } catch (const ::sc_core::sc_unwind_exception &) { 48813182Sgabeblack@google.com panic("Kill/reset exception escaped a Process::run()"); 48913182Sgabeblack@google.com } catch (const std::exception &e) { 49013317Sgabeblack@google.com SC_REPORT_ERROR( 49113317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, e.what()); 49213182Sgabeblack@google.com } catch (const char *msg) { 49313317Sgabeblack@google.com SC_REPORT_ERROR( 49413317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, msg); 49513182Sgabeblack@google.com } catch (...) { 49613317Sgabeblack@google.com SC_REPORT_ERROR( 49713317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, 49813317Sgabeblack@google.com "UNKNOWN EXCEPTION"); 49913182Sgabeblack@google.com } 50013182Sgabeblack@google.com } catch (const ::sc_core::sc_report &r) { 50113182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(old_handler); 50213264Sgabeblack@google.com return r; 50313182Sgabeblack@google.com } 50413182Sgabeblack@google.com panic("No exception thrown in reportifyException."); 50513182Sgabeblack@google.com} 50613182Sgabeblack@google.com 50712953Sgabeblack@google.com} // namespace sc_gem5 508