gem5  v20.1.0.0
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Intel8254Timer::Counter::CounterEvent Class Reference

Event for counter interrupt. More...

Inheritance diagram for Intel8254Timer::Counter::CounterEvent:
Event EventBase Serializable

Public Member Functions

 CounterEvent (Counter *)
 
void process ()
 Event process. More...
 
virtual const char * description () const
 Event description. More...
 
void setTo (int clocks)
 
int clocksLeft ()
 
Tick getInterval ()
 
- Public Member Functions inherited from Event
 Event (Priority p=Default_Pri, Flags f=0)
 
bool scheduled () const
 Determine if the current event is scheduled. More...
 
void squash ()
 Squash the current event. More...
 
bool squashed () const
 Check whether the event is squashed. More...
 
bool isExitEvent () const
 See if this is a SimExitEvent (without resorting to RTTI) More...
 
bool isManaged () const
 Check whether this event will auto-delete. More...
 
bool isAutoDelete () const
 The function returns true if the object is automatically deleted after the event is processed. More...
 
Tick when () const
 Get the time that the event is scheduled. More...
 
Priority priority () const
 Get the event priority. More...
 
virtual BaseGlobalEventglobalEvent ()
 If this is part of a GlobalEvent, return the pointer to the Global Event. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
virtual ~Event ()
 
virtual const std::string name () const
 
void dump () const
 Dump the current event data. More...
 
- 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)
 

Private Attributes

Countercounter
 Pointer back to Counter. More...
 
Tick interval
 

Friends

class Counter
 All counters are of 64-bit values. More...
 

Additional Inherited Members

- Public Types inherited from EventBase
typedef int8_t Priority
 
- 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)
 
- Static Public Attributes inherited from EventBase
static const Priority Minimum_Pri = SCHAR_MIN
 Event priorities, to provide tie-breakers for events scheduled at the same cycle. More...
 
static const Priority Debug_Enable_Pri = -101
 If we enable tracing on a particular cycle, do that as the very first thing so we don't miss any of the events on that cycle (even if we enter the debugger). More...
 
static const Priority Debug_Break_Pri = -100
 Breakpoints should happen before anything else (except enabling trace output), so we don't miss any action when debugging. More...
 
static const Priority CPU_Switch_Pri = -31
 CPU switches schedule the new CPU's tick event for the same cycle (after unscheduling the old CPU's tick event). More...
 
static const Priority Delayed_Writeback_Pri = -1
 For some reason "delayed" inter-cluster writebacks are scheduled before regular writebacks (which have default priority). More...
 
static const Priority Default_Pri = 0
 Default is zero for historical reasons. More...
 
static const Priority DVFS_Update_Pri = 31
 DVFS update event leads to stats dump therefore given a lower priority to ensure all relevant states have been updated. More...
 
static const Priority Serialize_Pri = 32
 Serailization needs to occur before tick events also, so that a serialize/unserialize is identical to an on-line CPU switch. More...
 
static const Priority CPU_Tick_Pri = 50
 CPU ticks must come after other associated CPU events (such as writebacks). More...
 
static const Priority CPU_Exit_Pri = 64
 If we want to exit a thread in a CPU, it comes after CPU_Tick_Pri. More...
 
static const Priority Stat_Event_Pri = 90
 Statistics events (dump, reset, etc.) come after everything else, but before exit. More...
 
static const Priority Progress_Event_Pri = 95
 Progress events come at the end. More...
 
static const Priority Sim_Exit_Pri = 100
 If we want to exit on this cycle, it's the very last thing we do. More...
 
static const Priority Maximum_Pri = SCHAR_MAX
 Maximum priority. More...
 
- Protected Types inherited from EventBase
typedef unsigned short FlagsType
 
typedef ::Flags< FlagsTypeFlags
 
- Protected Member Functions inherited from Event
Flags getFlags () const
 
bool isFlagSet (Flags _flags) const
 
void setFlags (Flags _flags)
 
void clearFlags (Flags _flags)
 
void clearFlags ()
 
virtual void trace (const char *action)
 This function isn't really useful if TRACING_ON is not defined. More...
 
const std::string instanceString () const
 Return the instance number as a string. More...
 
void acquire ()
 Memory management hooks for events that have the Managed flag set. More...
 
void release ()
 Managed event removed from the event queue. More...
 
virtual void acquireImpl ()
 
virtual void releaseImpl ()
 
- Static Protected Attributes inherited from EventBase
static const FlagsType PublicRead = 0x003f
 
static const FlagsType PublicWrite = 0x001d
 
static const FlagsType Squashed = 0x0001
 
static const FlagsType Scheduled = 0x0002
 
static const FlagsType Managed = 0x0004
 
static const FlagsType AutoDelete = Managed
 
static const FlagsType Reserved0 = 0x0008
 This used to be AutoSerialize. More...
 
static const FlagsType IsExitEvent = 0x0010
 
static const FlagsType IsMainQueue = 0x0020
 
static const FlagsType Initialized = 0x7a40
 
static const FlagsType InitMask = 0xffc0
 

Detailed Description

Event for counter interrupt.

Definition at line 80 of file intel_8254_timer.hh.

Constructor & Destructor Documentation

◆ CounterEvent()

Intel8254Timer::Counter::CounterEvent::CounterEvent ( Counter c_ptr)

Definition at line 273 of file intel_8254_timer.cc.

References Intel8254Timer::counter, and SimClock::Float::s.

Member Function Documentation

◆ clocksLeft()

int Intel8254Timer::Counter::CounterEvent::clocksLeft ( )

Definition at line 307 of file intel_8254_timer.cc.

References curTick().

◆ description()

const char * Intel8254Timer::Counter::CounterEvent::description ( ) const
virtual

Event description.

Reimplemented from Event.

Definition at line 315 of file intel_8254_timer.cc.

◆ getInterval()

Tick Intel8254Timer::Counter::CounterEvent::getInterval ( )

Definition at line 321 of file intel_8254_timer.cc.

◆ process()

void Intel8254Timer::Counter::CounterEvent::process ( )
virtual

◆ setTo()

void Intel8254Timer::Counter::CounterEvent::setTo ( int  clocks)

Friends And Related Function Documentation

◆ Counter

friend class Counter
friend

All counters are of 64-bit values.

Not much excuse for not using a 64-bit integer here, but if you're desperate and only run short simulations you could make this 32 bits.

Definition at line 96 of file intel_8254_timer.hh.

Member Data Documentation

◆ counter

Counter* Intel8254Timer::Counter::CounterEvent::counter
private

Pointer back to Counter.

Definition at line 84 of file intel_8254_timer.hh.

◆ interval

Tick Intel8254Timer::Counter::CounterEvent::interval
private

Definition at line 85 of file intel_8254_timer.hh.


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

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