kernel.cc revision 13191:a2254693aa5b
111878Sandreas.sandberg@arm.com/* 211878Sandreas.sandberg@arm.com * Copyright 2018 Google, Inc. 311878Sandreas.sandberg@arm.com * 411878Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 511878Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 611878Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 711878Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 811878Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 911878Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 1011878Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 1111878Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 1211878Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 134126SN/A * this software without specific prior written permission. 148295Snate@binkert.org * 154126SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 164126SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 174126SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 184126SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 194126SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 204126SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 214126SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 224126SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 234126SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 244126SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 254126SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 264126SN/A * 274126SN/A * Authors: Gabe Black 284126SN/A */ 294126SN/A 304126SN/A#include "systemc/core/kernel.hh" 314126SN/A 324126SN/A#include "base/logging.hh" 334126SN/A#include "systemc/core/channel.hh" 344126SN/A#include "systemc/core/module.hh" 354126SN/A#include "systemc/core/scheduler.hh" 364126SN/A 374126SN/Anamespace sc_gem5 384126SN/A{ 394126SN/A 404126SN/Anamespace 4111878Sandreas.sandberg@arm.com{ 424126SN/A 438296Snate@binkert.orgbool scMainDone = false; 448296Snate@binkert.orgbool stopAfterCallbacks = false; 4511802Sandreas.sandberg@arm.combool startComplete = false; 468295Snate@binkert.orgbool endComplete = false; 478296Snate@binkert.org 484126SN/Asc_core::sc_status _status = sc_core::SC_ELABORATION; 4911766Sandreas.sandberg@arm.com 5011802Sandreas.sandberg@arm.com} // anonymous namespace 5111802Sandreas.sandberg@arm.com 5211766Sandreas.sandberg@arm.combool Kernel::startOfSimulationComplete() { return startComplete; } 538296Snate@binkert.orgbool Kernel::endOfSimulationComplete() { return endComplete; } 5411878Sandreas.sandberg@arm.com 5511878Sandreas.sandberg@arm.combool Kernel::scMainFinished() { return scMainDone; } 5611878Sandreas.sandberg@arm.comvoid Kernel::scMainFinished(bool finished) { scMainDone = finished; } 5711878Sandreas.sandberg@arm.com 5811878Sandreas.sandberg@arm.comsc_core::sc_status Kernel::status() { return _status; } 5911878Sandreas.sandberg@arm.comvoid Kernel::status(sc_core::sc_status s) { _status = s; } 6011878Sandreas.sandberg@arm.com 6111878Sandreas.sandberg@arm.comKernel::Kernel(Params *params) : 6211878Sandreas.sandberg@arm.com SimObject(params), t0Event(this, false, EventBase::Default_Pri - 1) 6311878Sandreas.sandberg@arm.com{ 6411878Sandreas.sandberg@arm.com // Install ourselves as the scheduler's event manager. 6511878Sandreas.sandberg@arm.com ::sc_gem5::scheduler.setEventQueue(eventQueue()); 6611878Sandreas.sandberg@arm.com} 6711878Sandreas.sandberg@arm.com 6811878Sandreas.sandberg@arm.comvoid 6911878Sandreas.sandberg@arm.comKernel::init() 7011878Sandreas.sandberg@arm.com{ 7111878Sandreas.sandberg@arm.com if (scMainDone) 7211878Sandreas.sandberg@arm.com return; 7311878Sandreas.sandberg@arm.com 7413712Sandreas.sandberg@arm.com if (stopAfterCallbacks) 7513712Sandreas.sandberg@arm.com fatal("Simulation called sc_stop during elaboration.\n"); 7613712Sandreas.sandberg@arm.com 7713712Sandreas.sandberg@arm.com status(::sc_core::SC_BEFORE_END_OF_ELABORATION); 7813712Sandreas.sandberg@arm.com for (auto m: sc_gem5::allModules) 7911878Sandreas.sandberg@arm.com m->beforeEndOfElaboration(); 8011878Sandreas.sandberg@arm.com for (auto c: sc_gem5::allChannels) 8111878Sandreas.sandberg@arm.com c->sc_chan()->before_end_of_elaboration(); 8211878Sandreas.sandberg@arm.com} 8311878Sandreas.sandberg@arm.com 8411878Sandreas.sandberg@arm.comvoid 8511878Sandreas.sandberg@arm.comKernel::regStats() 8611878Sandreas.sandberg@arm.com{ 8711878Sandreas.sandberg@arm.com if (scMainDone || stopAfterCallbacks) 8811878Sandreas.sandberg@arm.com return; 8911878Sandreas.sandberg@arm.com 9011878Sandreas.sandberg@arm.com try { 9111878Sandreas.sandberg@arm.com for (auto m: sc_gem5::allModules) 9211878Sandreas.sandberg@arm.com for (auto p: m->ports) 9311878Sandreas.sandberg@arm.com p->_gem5Finalize(); 9411878Sandreas.sandberg@arm.com 9511878Sandreas.sandberg@arm.com status(::sc_core::SC_END_OF_ELABORATION); 9611878Sandreas.sandberg@arm.com for (auto m: sc_gem5::allModules) 9711878Sandreas.sandberg@arm.com m->endOfElaboration(); 9811878Sandreas.sandberg@arm.com for (auto c: sc_gem5::allChannels) 9911878Sandreas.sandberg@arm.com c->sc_chan()->end_of_elaboration(); 10011878Sandreas.sandberg@arm.com } catch (...) { 10111878Sandreas.sandberg@arm.com ::sc_gem5::scheduler.throwToScMain(); 10211878Sandreas.sandberg@arm.com } 10311878Sandreas.sandberg@arm.com 10411878Sandreas.sandberg@arm.com ::sc_gem5::scheduler.elaborationDone(true); 10511878Sandreas.sandberg@arm.com} 10611878Sandreas.sandberg@arm.com 10711878Sandreas.sandberg@arm.comvoid 10811878Sandreas.sandberg@arm.comKernel::startup() 10911878Sandreas.sandberg@arm.com{ 11011878Sandreas.sandberg@arm.com if (scMainDone) 11111878Sandreas.sandberg@arm.com return; 11211878Sandreas.sandberg@arm.com 11311878Sandreas.sandberg@arm.com schedule(t0Event, curTick()); 11411878Sandreas.sandberg@arm.com 11511878Sandreas.sandberg@arm.com if (stopAfterCallbacks) 11611878Sandreas.sandberg@arm.com return; 11711878Sandreas.sandberg@arm.com 11811878Sandreas.sandberg@arm.com try { 11911878Sandreas.sandberg@arm.com status(::sc_core::SC_START_OF_SIMULATION); 12011878Sandreas.sandberg@arm.com for (auto m: sc_gem5::allModules) 12111878Sandreas.sandberg@arm.com m->startOfSimulation(); 12211878Sandreas.sandberg@arm.com for (auto c: sc_gem5::allChannels) 12311878Sandreas.sandberg@arm.com c->sc_chan()->start_of_simulation(); 12411878Sandreas.sandberg@arm.com } catch (...) { 12511878Sandreas.sandberg@arm.com ::sc_gem5::scheduler.throwToScMain(); 12611878Sandreas.sandberg@arm.com } 12711878Sandreas.sandberg@arm.com 12811878Sandreas.sandberg@arm.com startComplete = true; 12911878Sandreas.sandberg@arm.com 13011878Sandreas.sandberg@arm.com if (stopAfterCallbacks) 13111878Sandreas.sandberg@arm.com stopWork(); 13211878Sandreas.sandberg@arm.com 13311878Sandreas.sandberg@arm.com kernel->status(::sc_core::SC_RUNNING); 13411878Sandreas.sandberg@arm.com} 13511878Sandreas.sandberg@arm.com 13611878Sandreas.sandberg@arm.comvoid 13711878Sandreas.sandberg@arm.comKernel::stop() 13811878Sandreas.sandberg@arm.com{ 13911878Sandreas.sandberg@arm.com if (status() < ::sc_core::SC_RUNNING) 14011878Sandreas.sandberg@arm.com stopAfterCallbacks = true; 14111878Sandreas.sandberg@arm.com else 14213712Sandreas.sandberg@arm.com stopWork(); 14313712Sandreas.sandberg@arm.com} 14413712Sandreas.sandberg@arm.com 14513712Sandreas.sandberg@arm.comvoid 14613712Sandreas.sandberg@arm.comKernel::stopWork() 14711878Sandreas.sandberg@arm.com{ 14811878Sandreas.sandberg@arm.com status(::sc_core::SC_END_OF_SIMULATION); 14911878Sandreas.sandberg@arm.com try { 15011878Sandreas.sandberg@arm.com for (auto m: sc_gem5::allModules) 15111878Sandreas.sandberg@arm.com m->endOfSimulation(); 15211878Sandreas.sandberg@arm.com for (auto c: sc_gem5::allChannels) 15311878Sandreas.sandberg@arm.com c->sc_chan()->end_of_simulation(); 15411878Sandreas.sandberg@arm.com } catch (...) { 15511878Sandreas.sandberg@arm.com ::sc_gem5::scheduler.throwToScMain(); 1564126SN/A } 1576001SN/A 15811802Sandreas.sandberg@arm.com endComplete = true; 15911802Sandreas.sandberg@arm.com 1606001SN/A status(::sc_core::SC_STOPPED); 1618295Snate@binkert.org} 1628295Snate@binkert.org 1638295Snate@binkert.orgvoid 1646001SN/AKernel::t0Handler() 1658295Snate@binkert.org{ 1668295Snate@binkert.org if (stopAfterCallbacks) { 1678295Snate@binkert.org scheduler.clear(); 1688295Snate@binkert.org ::sc_gem5::scheduler.initPhase(); 16911788Sandreas.sandberg@arm.com scheduler.scheduleStop(false); 17011802Sandreas.sandberg@arm.com } else { 1718295Snate@binkert.org ::sc_gem5::scheduler.initPhase(); 1728296Snate@binkert.org status(::sc_core::SC_RUNNING); 1738296Snate@binkert.org } 17410169SCurtis.Dunham@arm.com} 17510169SCurtis.Dunham@arm.com 1768296Snate@binkert.orgKernel *kernel; 1778296Snate@binkert.org 1788296Snate@binkert.org} // namespace sc_gem5 1798296Snate@binkert.org 18013681Sandreas.sandberg@arm.comsc_gem5::Kernel * 1818295Snate@binkert.orgSystemC_KernelParams::create() 1828295Snate@binkert.org{ 1838296Snate@binkert.org panic_if(sc_gem5::kernel, 1848295Snate@binkert.org "Only one systemc kernel object may be defined.\n"); 18511802Sandreas.sandberg@arm.com sc_gem5::kernel = new sc_gem5::Kernel(this); 1868986SAli.Saidi@ARM.com return sc_gem5::kernel; 1878296Snate@binkert.org} 1888296Snate@binkert.org