gem5  v20.1.0.0
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CpuLocalTimer Class Reference

#include <timer_cpulocal.hh>

Inheritance diagram for CpuLocalTimer:
BasicPioDevice PioDevice ClockedObject SimObject Clocked EventManager Serializable Drainable Stats::Group

Classes

class  Timer
 

Public Types

typedef CpuLocalTimerParams Params
 
- Public Types inherited from BasicPioDevice
typedef BasicPioDeviceParams Params
 
- Public Types inherited from PioDevice
typedef PioDeviceParams Params
 
- Public Types inherited from ClockedObject
typedef ClockedObjectParams Params
 Parameters of ClockedObject. More...
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

const Paramsparams () const
 
 CpuLocalTimer (Params *p)
 The constructor for RealView just registers itself with the MMU. More...
 
void init () override
 Inits the local timers. More...
 
Tick read (PacketPtr pkt) override
 Handle a read to the device. More...
 
Tick write (PacketPtr pkt) override
 Handle a write to the device. 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 BasicPioDevice
 BasicPioDevice (const Params *p, Addr size)
 
const Paramsparams () const
 
AddrRangeList getAddrRanges () const override
 Determine the address ranges that this device responds to. More...
 
- Public Member Functions inherited from PioDevice
 PioDevice (const Params *p)
 
virtual ~PioDevice ()
 
const Paramsparams () const
 
void init () override
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
PortgetPort (const std::string &if_name, PortID idx=InvalidPortID) override
 Get a port with a given name and index. More...
 
- Public Member Functions inherited from ClockedObject
 ClockedObject (const ClockedObjectParams *p)
 
const Paramsparams () const
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from SimObject
const Paramsparams () const
 
 SimObject (const Params *_params)
 
virtual ~SimObject ()
 
virtual const std::string name () const
 
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 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 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 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 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 Stats::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 (Stats::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...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 
- Public Member Functions inherited from Clocked
void updateClockPeriod ()
 Update the tick to the current tick. More...
 
Tick clockEdge (Cycles cycles=Cycles(0)) const
 Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle. More...
 
Cycles curCycle () const
 Determine the current cycle, corresponding to a tick aligned to a clock edge. More...
 
Tick nextCycle () const
 Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future. More...
 
uint64_t frequency () const
 
Tick clockPeriod () const
 
double voltage () const
 
Cycles ticksToCycles (Tick t) const
 
Tick cyclesToTicks (Cycles c) const
 

Protected Attributes

BaseGicgic
 Pointer to the GIC for causing an interrupt. More...
 
std::vector< std::unique_ptr< Timer > > localTimer
 Timers that do the actual work. More...
 
- Protected Attributes inherited from BasicPioDevice
Addr pioAddr
 Address that the device listens to. More...
 
Addr pioSize
 Size that the device's address range. More...
 
Tick pioDelay
 Delay that the device experinces on an access. More...
 
- Protected Attributes inherited from PioDevice
Systemsys
 
PioPort< PioDevicepioPort
 The pioPort that handles the requests for us and provides us requests that it sees. More...
 
- Protected Attributes inherited from SimObject
const SimObjectParams * _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from SimObject
static void serializeAll (CheckpointOut &cp)
 Serialize 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 Public Member Functions inherited from Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void serializeAll (const std::string &cpt_dir)
 Serializes all the SimObjects. More...
 
static void unserializeGlobals (CheckpointIn &cp)
 
- Public Attributes inherited from ClockedObject
PowerStatepowerState
 
- Protected Member Functions inherited from 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 Member Functions inherited from Clocked
 Clocked (ClockDomain &clk_domain)
 Create a clocked object and set the clock domain based on the parameters. More...
 
 Clocked (Clocked &)=delete
 
Clockedoperator= (Clocked &)=delete
 
virtual ~Clocked ()
 Virtual destructor due to inheritance. More...
 
void resetClock () const
 Reset the object's clock using the current global tick value. More...
 
virtual void clockPeriodUpdated ()
 A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed. More...
 

Detailed Description

Definition at line 53 of file timer_cpulocal.hh.

Member Typedef Documentation

◆ Params

typedef CpuLocalTimerParams CpuLocalTimer::Params

Definition at line 159 of file timer_cpulocal.hh.

Constructor & Destructor Documentation

◆ CpuLocalTimer()

CpuLocalTimer::CpuLocalTimer ( Params p)

The constructor for RealView just registers itself with the MMU.

Parameters
pparams structure

Definition at line 49 of file timer_cpulocal.cc.

Member Function Documentation

◆ init()

void CpuLocalTimer::init ( )
overridevirtual

Inits the local timers.

Reimplemented from SimObject.

Definition at line 55 of file timer_cpulocal.cc.

References ArmISA::i, PioDevice::init(), localTimer, SimObject::name(), MipsISA::p, params(), System::Threads::size(), PioDevice::sys, and System::threads.

◆ params()

const Params* CpuLocalTimer::params ( ) const
inline

Definition at line 161 of file timer_cpulocal.hh.

References SimObject::_params.

Referenced by init().

◆ read()

Tick CpuLocalTimer::read ( PacketPtr  pkt)
overridevirtual

Handle a read to the device.

Parameters
pktThe memory request.
Returns
Returns latency of device read

Implements PioDevice.

Definition at line 89 of file timer_cpulocal.cc.

References DPRINTF, Packet::getAddr(), Packet::getSize(), localTimer, Packet::makeAtomicResponse(), panic, BasicPioDevice::pioAddr, BasicPioDevice::pioDelay, BasicPioDevice::pioSize, Packet::req, and CpuLocalTimer::Timer::Size.

◆ serialize()

void CpuLocalTimer::serialize ( CheckpointOut cp) const
overridevirtual

Serialize an object.

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

Parameters
cpCheckpoint state

Implements Serializable.

Definition at line 430 of file timer_cpulocal.cc.

References csprintf(), ArmISA::i, localTimer, Serializable::serializeSection(), System::Threads::size(), PioDevice::sys, and System::threads.

◆ unserialize()

void CpuLocalTimer::unserialize ( CheckpointIn cp)
overridevirtual

Unserialize an object.

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

Parameters
cpCheckpoint state

Implements Serializable.

Definition at line 437 of file timer_cpulocal.cc.

References csprintf(), ArmISA::i, localTimer, System::Threads::size(), PioDevice::sys, System::threads, and Serializable::unserializeSection().

◆ write()

Tick CpuLocalTimer::write ( PacketPtr  pkt)
overridevirtual

Handle a write to the device.

Parameters
pktThe memory request.
Returns
Returns latency of device write

Implements PioDevice.

Definition at line 167 of file timer_cpulocal.cc.

References DPRINTF, Packet::getAddr(), Packet::getSize(), localTimer, Packet::makeAtomicResponse(), panic, BasicPioDevice::pioAddr, BasicPioDevice::pioDelay, BasicPioDevice::pioSize, Packet::req, and CpuLocalTimer::Timer::Size.

Member Data Documentation

◆ gic

BaseGic* CpuLocalTimer::gic
protected

Pointer to the GIC for causing an interrupt.

Definition at line 153 of file timer_cpulocal.hh.

◆ localTimer

std::vector<std::unique_ptr<Timer> > CpuLocalTimer::localTimer
protected

Timers that do the actual work.

Definition at line 156 of file timer_cpulocal.hh.

Referenced by init(), read(), serialize(), unserialize(), and write().


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

Generated on Wed Sep 30 2020 14:02:23 for gem5 by doxygen 1.8.17