#include <queued.hh>

Inheritance diagram for QueuedPrefetcher:

Classes
struct	DeferredPacket

Public Member Functions
	QueuedPrefetcher (const QueuedPrefetcherParams *p)

virtual	~QueuedPrefetcher ()

Tick	notify (const PacketPtr &pkt)
	Notify prefetcher of cache access (may be any access or just misses, depending on cache parameters.) More...

PacketPtr	insert (AddrPriority &info, bool is_secure)

virtual void	calculatePrefetch (const PacketPtr &pkt, std::vector< AddrPriority > &addresses)=0

PacketPtr	getPacket ()

Tick	nextPrefetchReadyTime () const

void	regStats ()
	Register statistics for this object. More...

Public Member Functions inherited from BasePrefetcher
	BasePrefetcher (const BasePrefetcherParams *p)

virtual	~BasePrefetcher ()

void	setCache (BaseCache *_cache)

Public Member Functions inherited from ClockedObject
	ClockedObject (const ClockedObjectParams *p)

const Params *	params () const

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Enums::PwrState	pwrState () const

std::string	pwrStateName () const

std::vector< double >	pwrStateWeights () const
	Returns the percentage residency for each power state. More...

void	computeStats ()
	Record stats values like state residency by computing the time difference from previous update. More...

void	pwrState (Enums::PwrState)

void	regStats () override
	Register statistics for this object. More...

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

virtual	~SimObject ()

virtual const std::string	name () const

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	resetStats ()
	Reset statistics associated with this object. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	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
	EventManager (EventManager &em)

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

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)

void	setCurTick (Tick newVal)

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 Clocked
void	updateClockPeriod () const
	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 Types
using	AddrPriority = std::pair< Addr, int32_t >

using	const_iterator = std::list< DeferredPacket >::const_iterator

using	iterator = std::list< DeferredPacket >::iterator

Protected Member Functions
std::list< DeferredPacket > ::const_iterator	inPrefetch (Addr address, bool is_secure) const

std::list< DeferredPacket > ::iterator	inPrefetch (Addr address, bool is_secure)

Protected Member Functions inherited from BasePrefetcher
bool	observeAccess (const PacketPtr &pkt) const
	Determine if this access should be observed. More...

bool	inCache (Addr addr, bool is_secure) const
	Determine if address is in cache. More...

bool	inMissQueue (Addr addr, bool is_secure) const
	Determine if address is in cache miss queue. More...

bool	samePage (Addr a, Addr b) const
	Determine if addresses are on the same page. More...

Addr	blockAddress (Addr a) const
	Determine the address of the block in which a lays. More...

Addr	blockIndex (Addr a) const
	Determine the address of a at block granularity. More...

Addr	pageAddress (Addr a) const
	Determine the address of the page in which a lays. More...

Addr	pageOffset (Addr a) const
	Determine the page-offset of a. More...

Addr	pageIthBlockAddress (Addr page, uint32_t i) const
	Build the address of the i-th block inside the page. More...

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

Clocked &	operator= (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...

Protected Attributes
std::list< DeferredPacket >	pfq

const unsigned	queueSize
	Maximum size of the prefetch queue. More...

const Cycles	latency
	Cycles after generation when a prefetch can first be issued. More...

const bool	queueSquash
	Squash queued prefetch if demand access observed. More...

const bool	queueFilter
	Filter prefetches if already queued. More...

const bool	cacheSnoop
	Snoop the cache before generating prefetch (cheating basically) More...

const bool	tagPrefetch
	Tag prefetch with PC of generating access? More...

Stats::Scalar	pfIdentified

Stats::Scalar	pfBufferHit

Stats::Scalar	pfInCache

Stats::Scalar	pfRemovedFull

Stats::Scalar	pfSpanPage

Protected Attributes inherited from BasePrefetcher
BaseCache *	cache
	Pointr to the parent cache. More...

unsigned	blkSize
	The block size of the parent cache. More...

unsigned	lBlkSize
	log_2(block size of the parent cache). More...

System *	system
	System we belong to. More...

bool	onMiss
	Only consult prefetcher on cache misses? More...

bool	onRead
	Consult prefetcher on reads? More...

bool	onWrite
	Consult prefetcher on reads? More...

bool	onData
	Consult prefetcher on data accesses? More...

bool	onInst
	Consult prefetcher on instruction accesses? More...

MasterID	masterId
	Request id for prefetches. More...

const Addr	pageBytes

Stats::Scalar	pfIssued

Protected Attributes inherited from ClockedObject
Enums::PwrState	_currPwrState
	To keep track of the current power state. More...

Tick	prvEvalTick

Stats::Scalar	numPwrStateTransitions

Stats::Distribution	pwrStateClkGateDist

Stats::Vector	pwrStateResidencyTicks

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Additional Inherited Members
Public Types inherited from ClockedObject
typedef ClockedObjectParams	Params
	Parameters of ClockedObject. More...

Public Types inherited from SimObject
typedef SimObjectParams	Params

Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (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 ()
	Get the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)

static void	unserializeGlobals (CheckpointIn &cp)

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Detailed Description

Definition at line 48 of file queued.hh.

Member Typedef Documentation

using QueuedPrefetcher::AddrPriority = std::pair<Addr, int32_t>

protected

Definition at line 70 of file queued.hh.

using QueuedPrefetcher::const_iterator = std::list<DeferredPacket>::const_iterator

protected

Definition at line 94 of file queued.hh.

using QueuedPrefetcher::iterator = std::list<DeferredPacket>::iterator

protected

Definition at line 97 of file queued.hh.

Constructor & Destructor Documentation

QueuedPrefetcher::QueuedPrefetcher ( const QueuedPrefetcherParams * p )

Definition at line 45 of file queued.cc.

QueuedPrefetcher::~QueuedPrefetcher ( )

virtual

Definition at line 53 of file queued.cc.

References MipsISA::p, and pfq.

Member Function Documentation

virtual void QueuedPrefetcher::calculatePrefetch	(	const PacketPtr &	pkt,
		std::vector< AddrPriority > &	addresses
	)

pure virtual

Implemented in StridePrefetcher, and TaggedPrefetcher.

Referenced by notify().

PacketPtr QueuedPrefetcher::getPacket ( )

virtual

Implements BasePrefetcher.

Definition at line 115 of file queued.cc.

References DPRINTF, Packet::getAddr(), BasePrefetcher::pfIssued, and pfq.

std::list< QueuedPrefetcher::DeferredPacket >::const_iterator QueuedPrefetcher::inPrefetch	(	Addr	address,
		bool	is_secure
	)		const

protected

Definition at line 134 of file queued.cc.

References pfq.

Referenced by insert().

QueuedPrefetcher::iterator QueuedPrefetcher::inPrefetch	(	Addr	address,
		bool	is_secure
	)

protected

Definition at line 145 of file queued.cc.

References pfq.

PacketPtr QueuedPrefetcher::insert	(	AddrPriority &	info,
		bool	is_secure
	)

Definition at line 182 of file queued.cc.

References Packet::allocate(), BasePrefetcher::blkSize, cacheSnoop, Clocked::clockPeriod(), curTick(), DPRINTF, MemCmd::HardPFReq, BasePrefetcher::inCache(), BasePrefetcher::inMissQueue(), inPrefetch(), latency, BasePrefetcher::masterId, panic_if(), pfBufferHit, pfInCache, pfq, pfRemovedFull, ContextSwitchTaskId::Prefetcher, queueFilter, queueSize, Request::SECURE, Request::setFlags(), and Request::taskId().

Referenced by notify().

Tick QueuedPrefetcher::nextPrefetchReadyTime ( ) const

inlinevirtual

Implements BasePrefetcher.

Definition at line 120 of file queued.hh.

References MaxTick, and pfq.

Tick QueuedPrefetcher::notify ( const PacketPtr & pkt )

virtual

Notify prefetcher of cache access (may be any access or just misses, depending on cache parameters.)

Return values

Time	of next prefetch availability, or MaxTick if none.

Implements BasePrefetcher.

Definition at line 63 of file queued.cc.

References BasePrefetcher::blkSize, calculatePrefetch(), DPRINTF, Packet::getBlockAddr(), Request::getPC(), Request::hasPC(), insert(), Packet::isSecure(), MaxTick, BasePrefetcher::observeAccess(), pfIdentified, pfq, queueSquash, Packet::req, Request::setPC(), and tagPrefetch.

void QueuedPrefetcher::regStats ( )

virtual

Register statistics for this object.

Reimplemented from BasePrefetcher.

Definition at line 156 of file queued.cc.

References Stats::DataWrap< Derived, InfoProxyType >::desc(), SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), pfBufferHit, pfIdentified, pfInCache, pfRemovedFull, pfSpanPage, and BasePrefetcher::regStats().

Member Data Documentation

const bool QueuedPrefetcher::cacheSnoop

protected

Snoop the cache before generating prefetch (cheating basically)

Definition at line 89 of file queued.hh.

Referenced by insert().

const Cycles QueuedPrefetcher::latency

protected

Cycles after generation when a prefetch can first be issued.

Definition at line 80 of file queued.hh.

Referenced by insert().

Stats::Scalar QueuedPrefetcher::pfBufferHit

protected

Definition at line 103 of file queued.hh.

Referenced by insert(), and regStats().

Stats::Scalar QueuedPrefetcher::pfIdentified

protected

Definition at line 102 of file queued.hh.

Referenced by notify(), and regStats().

Stats::Scalar QueuedPrefetcher::pfInCache

protected

Definition at line 104 of file queued.hh.

Referenced by insert(), and regStats().

std::list<DeferredPacket> QueuedPrefetcher::pfq

protected

Definition at line 72 of file queued.hh.

Referenced by getPacket(), inPrefetch(), insert(), nextPrefetchReadyTime(), notify(), and ~QueuedPrefetcher().

Stats::Scalar QueuedPrefetcher::pfRemovedFull

protected

Definition at line 105 of file queued.hh.

Referenced by insert(), and regStats().

Stats::Scalar QueuedPrefetcher::pfSpanPage

protected

Definition at line 106 of file queued.hh.

Referenced by TaggedPrefetcher::calculatePrefetch(), StridePrefetcher::calculatePrefetch(), and regStats().

const bool QueuedPrefetcher::queueFilter

protected

Filter prefetches if already queued.

Definition at line 86 of file queued.hh.

Referenced by insert().

const unsigned QueuedPrefetcher::queueSize

protected

Maximum size of the prefetch queue.

Definition at line 77 of file queued.hh.

Referenced by insert().

const bool QueuedPrefetcher::queueSquash

protected

Squash queued prefetch if demand access observed.

Definition at line 83 of file queued.hh.

Referenced by notify().

const bool QueuedPrefetcher::tagPrefetch

protected

Tag prefetch with PC of generating access?

Definition at line 92 of file queued.hh.

Referenced by notify().

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

mem/cache/prefetch/queued.hh
mem/cache/prefetch/queued.cc

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation