gem5::GenericTimer Class Reference

#include <generic_timer.hh>

Inheritance diagram for gem5::GenericTimer:

Classes
class	CoreTimers

Public Member Functions
	PARAMS (GenericTimer)
	GenericTimer (const Params &p)
void	serialize (CheckpointOut &cp) const override
	Serialize an object.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
void	setMiscReg (int misc_reg, unsigned cpu, RegVal val)
RegVal	readMiscReg (int misc_reg, unsigned cpu)
Public Member Functions inherited from gem5::SimObject
const Params &	params () const
	SimObject (const Params &p)
virtual	~SimObject ()
virtual void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected.
virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint.
virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint.
virtual void	regProbePoints ()
	Register probe points for this object.
virtual void	regProbeListeners ()
	Register probe listeners for this object.
ProbeManager *	getProbeManager ()
	Get the probe manager for this object.
virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index.
virtual void	startup ()
	startup() is the final initialization call before simulation.
DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining.
virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes.
virtual void	memInvalidate ()
	Invalidate the contents of memory buffers.
void	serialize (CheckpointOut &cp) const override
	Serialize an object.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
Public Member Functions inherited from gem5::EventManager
EventQueue *	eventQueue () const
void	schedule (Event &event, Tick when)
void	deschedule (Event &event)
void	reschedule (Event &event, Tick when, bool always=false)
void	schedule (Event *event, Tick when)
void	deschedule (Event *event)
void	reschedule (Event *event, Tick when, bool always=false)
void	wakeupEventQueue (Tick when=(Tick) -1)
	This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers.
void	setCurTick (Tick newVal)
	EventManager (EventManager &em)
	Event manger manages events in the event queue.
	EventManager (EventManager *em)
	EventManager (EventQueue *eq)
Public Member Functions inherited from gem5::Serializable
	Serializable ()
virtual	~Serializable ()
void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section.
void	serializeSection (CheckpointOut &cp, const std::string &name) const
void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.
void	unserializeSection (CheckpointIn &cp, const std::string &name)
Public Member Functions inherited from gem5::Drainable
DrainState	drainState () const
	Return the current drain state of an object.
virtual void	notifyFork ()
	Notify a child process of a fork.
Public Member Functions inherited from gem5::statistics::Group
	Group (Group *parent, const char *name=nullptr)
	Construct a new statistics group.
virtual	~Group ()
virtual void	regStats ()
	Callback to set stat parameters.
virtual void	resetStats ()
	Callback to reset stats.
virtual void	preDumpStats ()
	Callback before stats are dumped.
void	addStat (statistics::Info *info)
	Register a stat with this group.
const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object.
const std::vector< Info * > &	getStats () const
	Get all stats associated with this object.
void	addStatGroup (const char *name, Group *block)
	Add a stat block as a child of this block.
const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group.
void	mergeStatGroup (Group *block)
	Merge the contents (stats & children) of a block to this block.
	Group ()=delete
	Group (const Group &)=delete
Group &	operator= (const Group &)=delete
Public Member Functions inherited from gem5::Named
	Named (const std::string &name_)
virtual	~Named ()=default
virtual std::string	name () const

Protected Member Functions
CoreTimers &	getTimers (int cpu_id)
void	createTimers (unsigned cpus)
void	handleStream (CoreTimers::EventStream *ev_stream, ArchTimer *timer, RegVal old_cnt_ctl, RegVal cnt_ctl)
Protected Member Functions inherited from gem5::Drainable
	Drainable ()
virtual	~Drainable ()
virtual void	drainResume ()
	Resume execution after a successful drain.
void	signalDrainDone () const
	Signal that an object is drained.

Protected Attributes
SystemCounter &	systemCounter
	System counter reference.
std::vector< std::unique_ptr< CoreTimers > >	timers
	Per-CPU physical architected timers.
ArmSystem &	system
	ARM system containing this timer.
Protected Attributes inherited from gem5::SimObject
const SimObjectParams &	_params
	Cached copy of the object parameters.
Protected Attributes inherited from gem5::EventManager
EventQueue *	eventq
	A pointer to this object's event queue.

Additional Inherited Members
Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params
Static Public Member Functions inherited from gem5::SimObject
static void	serializeAll (const std::string &cpt_dir)
	Create a checkpoint by serializing all SimObjects in the system.
static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it.
static void	setSimObjectResolver (SimObjectResolver *resolver)
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
static SimObjectResolver *	getSimObjectResolver ()
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.
static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Detailed Description

Definition at line 286 of file generic_timer.hh.

Constructor & Destructor Documentation

GenericTimer()

gem5::GenericTimer::GenericTimer

(

const Params &

p

)

Definition at line 422 of file generic_timer.cc.

References fatal_if, gem5::MipsISA::p, gem5::ArmSystem::setGenericTimer(), system, and gem5::SystemCounter::validateCounterRef().

Member Function Documentation

createTimers()

void gem5::GenericTimer::createTimers ( unsigned cpus )

protected

Definition at line 485 of file generic_timer.cc.

References gem5::ArmISA::i, gem5::MipsISA::p, gem5::SimObject::params(), system, gem5::System::threads, and timers.

Referenced by getTimers().

getTimers()

GenericTimer::CoreTimers & gem5::GenericTimer::getTimers ( int cpu_id )

protected

Definition at line 476 of file generic_timer.cc.

References createTimers(), and timers.

Referenced by readMiscReg(), setMiscReg(), and unserialize().

handleStream()

void gem5::GenericTimer::handleStream ( CoreTimers::EventStream * ev_stream, ArchTimer * timer, RegVal old_cnt_ctl, RegVal cnt_ctl )

protected

Definition at line 509 of file generic_timer.cc.

References gem5::bits(), gem5::EventManager::deschedule(), gem5::GenericTimer::CoreTimers::EventStream::event, gem5::GenericTimer::CoreTimers::EventStream::eventTargetValue(), gem5::ArmISA::evnten, gem5::EventManager::reschedule(), gem5::Event::scheduled(), gem5::GenericTimer::CoreTimers::EventStream::transitionBit, gem5::GenericTimer::CoreTimers::EventStream::transitionTo, gem5::ArchTimer::value(), and gem5::ArchTimer::whenValue().

Referenced by setMiscReg().

PARAMS()

gem5::GenericTimer::PARAMS

(

GenericTimer

)

readMiscReg()

RegVal gem5::GenericTimer::readMiscReg	(	int	misc_reg,
		unsigned	cpu )

Definition at line 695 of file generic_timer.cc.

References gem5::GenericTimer::CoreTimers::cntfrq, gem5::GenericTimer::CoreTimers::cnthctl, gem5::GenericTimer::CoreTimers::cntkctl, gem5::ArchTimer::compareValue(), gem5::ArchTimer::control(), getTimers(), gem5::ArmISA::MISCREG_CNTFRQ, gem5::ArmISA::MISCREG_CNTFRQ_EL0, gem5::ArmISA::MISCREG_CNTHCTL, gem5::ArmISA::MISCREG_CNTHCTL_EL2, gem5::ArmISA::MISCREG_CNTHP_CTL, gem5::ArmISA::MISCREG_CNTHP_CTL_EL2, gem5::ArmISA::MISCREG_CNTHP_CVAL, gem5::ArmISA::MISCREG_CNTHP_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHP_TVAL, gem5::ArmISA::MISCREG_CNTHP_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHPS_CTL_EL2, gem5::ArmISA::MISCREG_CNTHPS_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHPS_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHV_CTL_EL2, gem5::ArmISA::MISCREG_CNTHV_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHV_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHVS_CTL_EL2, gem5::ArmISA::MISCREG_CNTHVS_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHVS_TVAL_EL2, gem5::ArmISA::MISCREG_CNTKCTL, gem5::ArmISA::MISCREG_CNTKCTL_EL1, gem5::ArmISA::MISCREG_CNTP_CTL_EL0, gem5::ArmISA::MISCREG_CNTP_CTL_NS, gem5::ArmISA::MISCREG_CNTP_CTL_S, gem5::ArmISA::MISCREG_CNTP_CVAL_EL0, gem5::ArmISA::MISCREG_CNTP_CVAL_NS, gem5::ArmISA::MISCREG_CNTP_CVAL_S, gem5::ArmISA::MISCREG_CNTP_TVAL_EL0, gem5::ArmISA::MISCREG_CNTP_TVAL_NS, gem5::ArmISA::MISCREG_CNTP_TVAL_S, gem5::ArmISA::MISCREG_CNTPCT, gem5::ArmISA::MISCREG_CNTPCT_EL0, gem5::ArmISA::MISCREG_CNTPS_CTL_EL1, gem5::ArmISA::MISCREG_CNTPS_CVAL_EL1, gem5::ArmISA::MISCREG_CNTPS_TVAL_EL1, gem5::ArmISA::MISCREG_CNTV_CTL, gem5::ArmISA::MISCREG_CNTV_CTL_EL0, gem5::ArmISA::MISCREG_CNTV_CVAL, gem5::ArmISA::MISCREG_CNTV_CVAL_EL0, gem5::ArmISA::MISCREG_CNTV_TVAL, gem5::ArmISA::MISCREG_CNTV_TVAL_EL0, gem5::ArmISA::MISCREG_CNTVCT, gem5::ArmISA::MISCREG_CNTVCT_EL0, gem5::ArmISA::MISCREG_CNTVOFF, gem5::ArmISA::MISCREG_CNTVOFF_EL2, gem5::ArmISA::miscRegName, gem5::ArchTimer::offset(), gem5::GenericTimer::CoreTimers::physEL1, gem5::GenericTimer::CoreTimers::physEL3, gem5::GenericTimer::CoreTimers::physNsEL2, gem5::GenericTimer::CoreTimers::physSEL2, gem5::X86ISA::reg, gem5::ArchTimer::timerValue(), gem5::ArchTimer::value(), gem5::GenericTimer::CoreTimers::virtEL1, gem5::GenericTimer::CoreTimers::virtNsEL2, gem5::GenericTimer::CoreTimers::virtSEL2, and warn.

serialize()

void gem5::GenericTimer::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Implements gem5::Serializable.

Definition at line 434 of file generic_timer.cc.

References gem5::csprintf(), gem5::ArmISA::i, gem5::paramOut(), gem5::Serializable::serializeSection(), and timers.

setMiscReg()

void gem5::GenericTimer::setMiscReg	(	int	misc_reg,
		unsigned	cpu,
		RegVal	val )

Definition at line 535 of file generic_timer.cc.

References gem5::GenericTimer::CoreTimers::cntfrq, gem5::GenericTimer::CoreTimers::cnthctl, gem5::GenericTimer::CoreTimers::cntkctl, gem5::SystemCounter::freq(), getTimers(), handleStream(), gem5::ArmISA::MISCREG_CNTFRQ, gem5::ArmISA::MISCREG_CNTFRQ_EL0, gem5::ArmISA::MISCREG_CNTHCTL, gem5::ArmISA::MISCREG_CNTHCTL_EL2, gem5::ArmISA::MISCREG_CNTHP_CTL, gem5::ArmISA::MISCREG_CNTHP_CTL_EL2, gem5::ArmISA::MISCREG_CNTHP_CVAL, gem5::ArmISA::MISCREG_CNTHP_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHP_TVAL, gem5::ArmISA::MISCREG_CNTHP_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHPS_CTL_EL2, gem5::ArmISA::MISCREG_CNTHPS_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHPS_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHV_CTL_EL2, gem5::ArmISA::MISCREG_CNTHV_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHV_TVAL_EL2, gem5::ArmISA::MISCREG_CNTHVS_CTL_EL2, gem5::ArmISA::MISCREG_CNTHVS_CVAL_EL2, gem5::ArmISA::MISCREG_CNTHVS_TVAL_EL2, gem5::ArmISA::MISCREG_CNTKCTL, gem5::ArmISA::MISCREG_CNTKCTL_EL1, gem5::ArmISA::MISCREG_CNTP_CTL_EL0, gem5::ArmISA::MISCREG_CNTP_CTL_NS, gem5::ArmISA::MISCREG_CNTP_CTL_S, gem5::ArmISA::MISCREG_CNTP_CVAL_EL0, gem5::ArmISA::MISCREG_CNTP_CVAL_NS, gem5::ArmISA::MISCREG_CNTP_CVAL_S, gem5::ArmISA::MISCREG_CNTP_TVAL_EL0, gem5::ArmISA::MISCREG_CNTP_TVAL_NS, gem5::ArmISA::MISCREG_CNTP_TVAL_S, gem5::ArmISA::MISCREG_CNTPCT, gem5::ArmISA::MISCREG_CNTPCT_EL0, gem5::ArmISA::MISCREG_CNTPS_CTL_EL1, gem5::ArmISA::MISCREG_CNTPS_CVAL_EL1, gem5::ArmISA::MISCREG_CNTPS_TVAL_EL1, gem5::ArmISA::MISCREG_CNTV_CTL, gem5::ArmISA::MISCREG_CNTV_CTL_EL0, gem5::ArmISA::MISCREG_CNTV_CVAL, gem5::ArmISA::MISCREG_CNTV_CVAL_EL0, gem5::ArmISA::MISCREG_CNTV_TVAL, gem5::ArmISA::MISCREG_CNTV_TVAL_EL0, gem5::ArmISA::MISCREG_CNTVCT, gem5::ArmISA::MISCREG_CNTVCT_EL0, gem5::ArmISA::MISCREG_CNTVOFF, gem5::ArmISA::MISCREG_CNTVOFF_EL2, gem5::ArmISA::miscRegName, gem5::GenericTimer::CoreTimers::physEL1, gem5::GenericTimer::CoreTimers::physEL3, gem5::GenericTimer::CoreTimers::physEvStream, gem5::GenericTimer::CoreTimers::physNsEL2, gem5::GenericTimer::CoreTimers::physSEL2, gem5::X86ISA::reg, gem5::ArchTimer::setCompareValue(), gem5::ArchTimer::setControl(), gem5::ArchTimer::setOffset(), gem5::ArchTimer::setTimerValue(), systemCounter, gem5::X86ISA::val, gem5::GenericTimer::CoreTimers::virtEL1, gem5::GenericTimer::CoreTimers::virtEvStream, gem5::GenericTimer::CoreTimers::virtNsEL2, gem5::GenericTimer::CoreTimers::virtSEL2, warn, and warn_if.

unserialize()

void gem5::GenericTimer::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Implements gem5::Serializable.

Definition at line 445 of file generic_timer.cc.

References gem5::csprintf(), fatal, getTimers(), gem5::ArmISA::i, gem5::System::Threads::size(), system, gem5::System::threads, UNSERIALIZE_OPT_SCALAR, gem5::Serializable::unserializeSection(), and warn.

Member Data Documentation

system

ArmSystem& gem5::GenericTimer::system

protected

ARM system containing this timer.

Definition at line 393 of file generic_timer.hh.

Referenced by createTimers(), GenericTimer(), and unserialize().

systemCounter

SystemCounter& gem5::GenericTimer::systemCounter

protected

System counter reference.

Definition at line 386 of file generic_timer.hh.

Referenced by setMiscReg().

timers

std::vector<std::unique_ptr<CoreTimers> > gem5::GenericTimer::timers

protected

Per-CPU physical architected timers.

Definition at line 389 of file generic_timer.hh.

Referenced by createTimers(), getTimers(), and serialize().

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The documentation for this class was generated from the following files:

• dev/arm/generic_timer.hh
• dev/arm/generic_timer.cc