gem5  v21.1.0.2
Classes | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
gem5::GenericTimer Class Reference

#include <generic_timer.hh>

Inheritance diagram for gem5::GenericTimer:
gem5::SimObject gem5::EventManager gem5::Serializable gem5::Drainable gem5::statistics::Group gem5::Named

Classes

class  CoreTimers
 

Public Member Functions

 PARAMS (GenericTimer)
 
 GenericTimer (const Params &p)
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
void setMiscReg (int misc_reg, unsigned cpu, RegVal val)
 
RegVal readMiscReg (int misc_reg, unsigned cpu)
 
- Public Member Functions inherited from gem5::SimObject
const Paramsparams () 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. More...
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void initState ()
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
virtual void regProbeListeners ()
 Register probe listeners for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual PortgetPort (const std::string &if_name, PortID idx=InvalidPortID)
 Get a port with a given name and index. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from gem5::EventManager
EventQueueeventQueue () 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. More...
 
void setCurTick (Tick newVal)
 
 EventManager (EventManager &em)
 Event manger manages events in the event queue. More...
 
 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. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
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. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from gem5::statistics::Group
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void regStats ()
 Callback to set stat parameters. More...
 
virtual void resetStats ()
 Callback to reset stats. More...
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (statistics::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 
const InforesolveStat (std::string name) const
 Resolve a stat by its name within this group. More...
 
void mergeStatGroup (Group *block)
 Merge the contents (stats & children) of a block to this block. More...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (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

CoreTimersgetTimers (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. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 

Protected Attributes

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

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. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
static void setSimObjectResolver (SimObjectResolver *resolver)
 There is a single object name resolver, and it is only set when simulation is restoring from checkpoints. More...
 
static SimObjectResolvergetSimObjectResolver ()
 There is a single object name resolver, and it is only set when simulation is restoring from checkpoints. More...
 
- Static Public Member Functions inherited from gem5::Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
 Generate a checkpoint file so that the serialization can be routed to it. More...
 

Detailed Description

Definition at line 288 of file generic_timer.hh.

Constructor & Destructor Documentation

◆ GenericTimer()

gem5::GenericTimer::GenericTimer ( const Params p)

Member Function Documentation

◆ createTimers()

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

◆ getTimers()

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

Definition at line 459 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

◆ PARAMS()

gem5::GenericTimer::PARAMS ( GenericTimer  )

◆ readMiscReg()

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

Definition at line 641 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::GenericTimer::CoreTimers::hyp, 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_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::physNS, gem5::GenericTimer::CoreTimers::physS, gem5::X86ISA::reg, gem5::ArchTimer::timerValue(), gem5::ArchTimer::value(), gem5::GenericTimer::CoreTimers::virt, 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
cpCheckpoint state

Implements gem5::Serializable.

Definition at line 417 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 515 of file generic_timer.cc.

References gem5::GenericTimer::CoreTimers::cntfrq, gem5::GenericTimer::CoreTimers::cnthctl, gem5::GenericTimer::CoreTimers::cntkctl, gem5::ArmISA::currEL(), gem5::ArmISA::ELIsInHost(), gem5::SystemCounter::freq(), getTimers(), handleStream(), gem5::GenericTimer::CoreTimers::hyp, 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_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::physEvStream, gem5::GenericTimer::CoreTimers::physNS, gem5::GenericTimer::CoreTimers::physS, gem5::X86ISA::reg, gem5::ArchTimer::setCompareValue(), gem5::ArchTimer::setControl(), gem5::ThreadContext::setMiscReg(), gem5::ArchTimer::setOffset(), gem5::ArchTimer::setTimerValue(), system, systemCounter, gem5::System::threads, gem5::X86ISA::val, gem5::GenericTimer::CoreTimers::virt, gem5::GenericTimer::CoreTimers::virtEvStream, 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
cpCheckpoint state

Implements gem5::Serializable.

Definition at line 428 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 384 of file generic_timer.hh.

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

◆ systemCounter

SystemCounter& gem5::GenericTimer::systemCounter
protected

System counter reference.

Definition at line 377 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 380 of file generic_timer.hh.

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


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

Generated on Tue Sep 21 2021 12:27:38 for gem5 by doxygen 1.8.17