#include <CacheMemory.hh>

Inheritance diagram for CacheMemory:

Public Types
typedef RubyCacheParams	Params

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	CacheMemory (const Params *p)

	~CacheMemory ()

void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

bool	tryCacheAccess (Addr address, RubyRequestType type, DataBlock *&data_ptr)

bool	testCacheAccess (Addr address, RubyRequestType type, DataBlock *&data_ptr)

bool	isTagPresent (Addr address) const

bool	cacheAvail (Addr address) const

AbstractCacheEntry *	allocate (Addr address, AbstractCacheEntry *new_entry, bool touch)

AbstractCacheEntry *	allocate (Addr address, AbstractCacheEntry *new_entry)

void	allocateVoid (Addr address, AbstractCacheEntry *new_entry)

void	deallocate (Addr address)

Addr	cacheProbe (Addr address) const

AbstractCacheEntry *	lookup (Addr address)

const AbstractCacheEntry *	lookup (Addr address) const

Cycles	getTagLatency () const

Cycles	getDataLatency () const

bool	isBlockInvalid (int64_t cache_set, int64_t loc)

bool	isBlockNotBusy (int64_t cache_set, int64_t loc)

void	recordCacheContents (int cntrl, CacheRecorder *tr) const

void	setMRU (Addr address)

void	setMRU (Addr addr, int occupancy)

int	getReplacementWeight (int64_t set, int64_t loc)

void	setMRU (const AbstractCacheEntry *e)

void	setLocked (Addr addr, int context)

void	clearLocked (Addr addr)

bool	isLocked (Addr addr, int context)

void	print (std::ostream &out) const

void	printData (std::ostream &out) const

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

bool	checkResourceAvailable (CacheResourceType res, Addr addr)

void	recordRequestType (CacheRequestType requestType, Addr addr)

int	getCacheSize () const

int	getCacheAssoc () const

int	getNumBlocks () const

Addr	getAddressAtIdx (int idx) const

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

Private Member Functions
int64_t	addressToCacheSet (Addr address) const

int	findTagInSet (int64_t line, Addr tag) const

int	findTagInSetIgnorePermissions (int64_t cacheSet, Addr tag) const

	CacheMemory (const CacheMemory &obj)

CacheMemory &	operator= (const CacheMemory &obj)

Private Attributes
bool	m_is_instruction_only_cache

std::unordered_map< Addr, int >	m_tag_index

std::vector< std::vector < AbstractCacheEntry * > >	m_cache

AbstractReplacementPolicy *	m_replacementPolicy_ptr

BankedArray	dataArray

BankedArray	tagArray

int	m_cache_size

int	m_cache_num_sets

int	m_cache_num_set_bits

int	m_cache_assoc

int	m_start_index_bit

bool	m_resource_stalls

int	m_block_size

Additional Inherited Members
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

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 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...

Detailed Description

Definition at line 50 of file CacheMemory.hh.

Member Typedef Documentation

typedef RubyCacheParams CacheMemory::Params

Definition at line 53 of file CacheMemory.hh.

Constructor & Destructor Documentation

CacheMemory::CacheMemory ( const Params * p )

Definition at line 57 of file CacheMemory.cc.

References m_block_size, m_cache_assoc, m_cache_size, m_is_instruction_only_cache, m_replacementPolicy_ptr, m_resource_stalls, m_start_index_bit, and AbstractReplacementPolicy::setCache().

CacheMemory::~CacheMemory ( )

Definition at line 89 of file CacheMemory.cc.

References ArmISA::i, ArmISA::j, m_cache, m_cache_assoc, m_cache_num_sets, and m_replacementPolicy_ptr.

CacheMemory::CacheMemory ( const CacheMemory & obj )

private

Member Function Documentation

int64_t CacheMemory::addressToCacheSet ( Addr address ) const

private

Definition at line 102 of file CacheMemory.cc.

References bitSelect(), m_cache_num_set_bits, m_start_index_bit, and makeLineAddress().

Referenced by allocate(), cacheAvail(), cacheProbe(), checkResourceAvailable(), clearLocked(), deallocate(), isLocked(), isTagPresent(), lookup(), recordRequestType(), setLocked(), setMRU(), testCacheAccess(), and tryCacheAccess().

AbstractCacheEntry * CacheMemory::allocate	(	Addr	address,
		AbstractCacheEntry *	new_entry,
		bool	touch
	)

Definition at line 254 of file CacheMemory.cc.

References addressToCacheSet(), cacheAvail(), curTick(), DPRINTF, ArmISA::i, isTagPresent(), m_cache, m_cache_assoc, m_replacementPolicy_ptr, m_tag_index, makeLineAddress(), panic, AbstractCacheEntry::setSetIndex(), AbstractCacheEntry::setWayIndex(), AbstractReplacementPolicy::touch(), and warn_once.

Referenced by allocate(), and allocateVoid().

AbstractCacheEntry* CacheMemory::allocate	(	Addr	address,
		AbstractCacheEntry *	new_entry
	)

inline

Definition at line 79 of file CacheMemory.hh.

References allocate().

void CacheMemory::allocateVoid	(	Addr	address,
		AbstractCacheEntry *	new_entry
	)

inline

Definition at line 83 of file CacheMemory.hh.

References allocate().

bool CacheMemory::cacheAvail ( Addr address ) const

Definition at line 232 of file CacheMemory.cc.

References addressToCacheSet(), ArmISA::i, AbstractCacheEntry::m_Address, m_cache, m_cache_assoc, AbstractEntry::m_Permission, and makeLineAddress().

Referenced by allocate(), and cacheProbe().

Addr CacheMemory::cacheProbe ( Addr address ) const

Definition at line 310 of file CacheMemory.cc.

References addressToCacheSet(), cacheAvail(), AbstractReplacementPolicy::getVictim(), m_cache, m_replacementPolicy_ptr, and makeLineAddress().

bool CacheMemory::checkResourceAvailable	(	CacheResourceType	res,
		Addr	addr
	)

Definition at line 615 of file CacheMemory.cc.

References addressToCacheSet(), dataArray, DPRINTF, m_resource_stalls, numDataArrayStalls, numTagArrayStalls, tagArray, and BankedArray::tryAccess().

void CacheMemory::clearLocked ( Addr addr )

Definition at line 467 of file CacheMemory.cc.

References addressToCacheSet(), DPRINTF, findTagInSet(), m_cache, and makeLineAddress().

Referenced by GPUCoalescer::handleLlsc().

void CacheMemory::deallocate ( Addr address )

Definition at line 294 of file CacheMemory.cc.

References addressToCacheSet(), DPRINTF, findTagInSet(), isTagPresent(), m_cache, m_tag_index, and makeLineAddress().

int CacheMemory::findTagInSet	(	int64_t	line,
		Addr	tag
	)		const

private

Definition at line 112 of file CacheMemory.cc.

References m_cache, m_tag_index, and makeLineAddress().

Referenced by clearLocked(), deallocate(), isLocked(), isTagPresent(), lookup(), setLocked(), setMRU(), testCacheAccess(), and tryCacheAccess().

int CacheMemory::findTagInSetIgnorePermissions	(	int64_t	cacheSet,
		Addr	tag
	)		const

private

Definition at line 127 of file CacheMemory.cc.

References m_tag_index, and makeLineAddress().

Addr CacheMemory::getAddressAtIdx ( int idx ) const

Definition at line 142 of file CacheMemory.cc.

References AbstractCacheEntry::m_Address, m_cache, m_cache_assoc, m_cache_num_sets, and AbstractEntry::m_Permission.

Referenced by VIPERCoalescer::invL1(), VIPERCoalescer::invwbL1(), and VIPERCoalescer::wbL1().

int CacheMemory::getCacheAssoc ( ) const

inline

Definition at line 150 of file CacheMemory.hh.

References m_cache_assoc.

int CacheMemory::getCacheSize ( ) const

inline

Definition at line 149 of file CacheMemory.hh.

References m_cache_size.

Cycles CacheMemory::getDataLatency ( ) const

inline

Definition at line 99 of file CacheMemory.hh.

References dataArray, and BankedArray::getLatency().

int CacheMemory::getNumBlocks ( ) const

inline

Definition at line 151 of file CacheMemory.hh.

References m_cache_assoc, and m_cache_num_sets.

Referenced by VIPERCoalescer::invL1(), VIPERCoalescer::invwbL1(), and VIPERCoalescer::wbL1().

int CacheMemory::getReplacementWeight	(	int64_t	set,
		int64_t	loc
	)

Definition at line 379 of file CacheMemory.cc.

References m_cache, m_cache_assoc, and m_cache_num_sets.

Cycles CacheMemory::getTagLatency ( ) const

inline

Definition at line 98 of file CacheMemory.hh.

References BankedArray::getLatency(), and tagArray.

void CacheMemory::init ( )

virtual

init() is called after all C++ SimObjects have been created and all ports are connected.

Initializations that are independent of unserialization but rely on a fully instantiated and connected SimObject graph should be done here.

Reimplemented from SimObject.

Definition at line 75 of file CacheMemory.cc.

References floorLog2(), RubySystem::getBlockSizeBytes(), m_block_size, m_cache, m_cache_assoc, m_cache_num_set_bits, m_cache_num_sets, and m_cache_size.

bool CacheMemory::isBlockInvalid	(	int64_t	cache_set,
		int64_t	loc
	)

Definition at line 646 of file CacheMemory.cc.

References m_cache.

bool CacheMemory::isBlockNotBusy	(	int64_t	cache_set,
		int64_t	loc
	)

Definition at line 652 of file CacheMemory.cc.

References m_cache.

bool CacheMemory::isLocked	(	Addr	addr,
		int	context
	)

Definition at line 478 of file CacheMemory.cc.

References addressToCacheSet(), DPRINTF, findTagInSet(), m_cache, and makeLineAddress().

Referenced by GPUCoalescer::handleLlsc().

bool CacheMemory::isTagPresent ( Addr address ) const

Definition at line 213 of file CacheMemory.cc.

References addressToCacheSet(), DPRINTF, findTagInSet(), and makeLineAddress().

Referenced by allocate(), deallocate(), GPUCoalescer::handleLlsc(), and GPUCoalescer::hitCallback().

AbstractCacheEntry * CacheMemory::lookup ( Addr address )

Definition at line 322 of file CacheMemory.cc.

References addressToCacheSet(), findTagInSet(), m_cache, and makeLineAddress().

Referenced by Sequencer::handleLlsc(), and Sequencer::invalidateSC().

const AbstractCacheEntry * CacheMemory::lookup ( Addr address ) const

Definition at line 333 of file CacheMemory.cc.

References addressToCacheSet(), findTagInSet(), m_cache, and makeLineAddress().

CacheMemory& CacheMemory::operator= ( const CacheMemory & obj )

private

void CacheMemory::print ( std::ostream & out ) const

Definition at line 431 of file CacheMemory.cc.

References ArmISA::i, ArmISA::j, m_cache, m_cache_assoc, m_cache_num_sets, and SimObject::name().

Referenced by operator<<().

void CacheMemory::printData ( std::ostream & out ) const

Definition at line 450 of file CacheMemory.cc.

void CacheMemory::recordCacheContents	(	int	cntrl,
		CacheRecorder *	tr
	)		const

Definition at line 393 of file CacheMemory.cc.

References CacheRecorder::addRecord(), DPRINTF, AbstractReplacementPolicy::getLastAccess(), ArmISA::i, ArmISA::j, M5_VAR_USED, m_cache, m_cache_assoc, m_cache_num_sets, m_is_instruction_only_cache, m_replacementPolicy_ptr, and SimObject::name().

void CacheMemory::recordRequestType	(	CacheRequestType	requestType,
		Addr	addr
	)

Definition at line 583 of file CacheMemory.cc.

References addressToCacheSet(), dataArray, DPRINTF, m_resource_stalls, numDataArrayReads, numDataArrayWrites, numTagArrayReads, numTagArrayWrites, BankedArray::reserve(), tagArray, and warn.

void CacheMemory::regStats ( )

virtual

Register statistics for this object.

Reimplemented from SimObject.

Definition at line 490 of file CacheMemory.cc.

References Stats::DataWrap< Derived, InfoProxyType >::desc(), Stats::DataWrap< Derived, InfoProxyType >::flags(), ArmISA::i, Stats::VectorBase< Derived, Stor >::init(), m_accessModeType, m_demand_accesses, m_demand_hits, m_demand_misses, m_hw_prefetches, m_prefetches, m_sw_prefetches, SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), Stats::nozero, numDataArrayReads, numDataArrayStalls, numDataArrayWrites, numTagArrayReads, numTagArrayStalls, numTagArrayWrites, Stats::pdf, SimObject::regStats(), Stats::DataWrapVec< Derived, InfoProxyType >::subname(), and Stats::total.

void CacheMemory::setLocked	(	Addr	addr,
		int	context
	)

Definition at line 456 of file CacheMemory.cc.

References addressToCacheSet(), DPRINTF, findTagInSet(), m_cache, and makeLineAddress().

Referenced by GPUCoalescer::handleLlsc().

void CacheMemory::setMRU ( Addr address )

Definition at line 344 of file CacheMemory.cc.

References addressToCacheSet(), curTick(), findTagInSet(), m_replacementPolicy_ptr, and AbstractReplacementPolicy::touch().

Referenced by GPUCoalescer::hitCallback().

void CacheMemory::setMRU	(	Addr	addr,
		int	occupancy
	)

Definition at line 362 of file CacheMemory.cc.

References addressToCacheSet(), curTick(), findTagInSet(), m_replacementPolicy_ptr, and AbstractReplacementPolicy::useOccupancy().

void CacheMemory::setMRU ( const AbstractCacheEntry * e )

Definition at line 354 of file CacheMemory.cc.

References curTick(), AbstractCacheEntry::getSetIndex(), AbstractCacheEntry::getWayIndex(), m_replacementPolicy_ptr, and AbstractReplacementPolicy::touch().

bool CacheMemory::testCacheAccess	(	Addr	address,
		RubyRequestType	type,
		DataBlock *&	data_ptr
	)

Definition at line 189 of file CacheMemory.cc.

References addressToCacheSet(), curTick(), DPRINTF, findTagInSet(), AbstractCacheEntry::getDataBlk(), m_cache, m_replacementPolicy_ptr, makeLineAddress(), and AbstractReplacementPolicy::touch().

bool CacheMemory::tryCacheAccess	(	Addr	address,
		RubyRequestType	type,
		DataBlock *&	data_ptr
	)

Definition at line 162 of file CacheMemory.cc.

References addressToCacheSet(), curTick(), DPRINTF, findTagInSet(), AbstractCacheEntry::getDataBlk(), m_cache, AbstractEntry::m_Permission, m_replacementPolicy_ptr, makeLineAddress(), and AbstractReplacementPolicy::touch().

Member Data Documentation

BankedArray CacheMemory::dataArray

private

Definition at line 178 of file CacheMemory.hh.

Referenced by checkResourceAvailable(), getDataLatency(), and recordRequestType().

Stats::Vector CacheMemory::m_accessModeType

Definition at line 139 of file CacheMemory.hh.

Referenced by regStats().

int CacheMemory::m_block_size

private

Definition at line 187 of file CacheMemory.hh.

Referenced by CacheMemory(), and init().

std::vector<std::vector<AbstractCacheEntry*> > CacheMemory::m_cache

private

Definition at line 174 of file CacheMemory.hh.

Referenced by allocate(), cacheAvail(), cacheProbe(), clearLocked(), deallocate(), findTagInSet(), getAddressAtIdx(), getReplacementWeight(), init(), isBlockInvalid(), isBlockNotBusy(), isLocked(), lookup(), print(), recordCacheContents(), setLocked(), testCacheAccess(), tryCacheAccess(), and ~CacheMemory().

int CacheMemory::m_cache_assoc

private

Definition at line 184 of file CacheMemory.hh.

Referenced by allocate(), cacheAvail(), CacheMemory(), getAddressAtIdx(), getCacheAssoc(), getNumBlocks(), getReplacementWeight(), init(), print(), recordCacheContents(), and ~CacheMemory().

int CacheMemory::m_cache_num_set_bits

private

Definition at line 183 of file CacheMemory.hh.

Referenced by addressToCacheSet(), and init().

int CacheMemory::m_cache_num_sets

private

Definition at line 182 of file CacheMemory.hh.

Referenced by getAddressAtIdx(), getNumBlocks(), getReplacementWeight(), init(), print(), recordCacheContents(), and ~CacheMemory().

int CacheMemory::m_cache_size

private

Definition at line 181 of file CacheMemory.hh.

Referenced by CacheMemory(), getCacheSize(), and init().

Stats::Formula CacheMemory::m_demand_accesses

Definition at line 133 of file CacheMemory.hh.

Referenced by regStats().

Stats::Scalar CacheMemory::m_demand_hits

Definition at line 131 of file CacheMemory.hh.

Referenced by regStats().

Stats::Scalar CacheMemory::m_demand_misses

Definition at line 132 of file CacheMemory.hh.

Referenced by regStats().

Stats::Scalar CacheMemory::m_hw_prefetches

Definition at line 136 of file CacheMemory.hh.

Referenced by regStats().

bool CacheMemory::m_is_instruction_only_cache

private

Definition at line 169 of file CacheMemory.hh.

Referenced by CacheMemory(), and recordCacheContents().

Stats::Formula CacheMemory::m_prefetches

Definition at line 137 of file CacheMemory.hh.

Referenced by regStats().

AbstractReplacementPolicy* CacheMemory::m_replacementPolicy_ptr

private

Definition at line 176 of file CacheMemory.hh.

Referenced by allocate(), CacheMemory(), cacheProbe(), recordCacheContents(), setMRU(), testCacheAccess(), tryCacheAccess(), and ~CacheMemory().

bool CacheMemory::m_resource_stalls

private

Definition at line 186 of file CacheMemory.hh.

Referenced by CacheMemory(), checkResourceAvailable(), and recordRequestType().

int CacheMemory::m_start_index_bit

private

Definition at line 185 of file CacheMemory.hh.

Referenced by addressToCacheSet(), and CacheMemory().

Stats::Scalar CacheMemory::m_sw_prefetches

Definition at line 135 of file CacheMemory.hh.

Referenced by regStats().

std::unordered_map<Addr, int> CacheMemory::m_tag_index

private

Definition at line 173 of file CacheMemory.hh.

Referenced by allocate(), deallocate(), findTagInSet(), and findTagInSetIgnorePermissions().

Stats::Scalar CacheMemory::numDataArrayReads

Definition at line 141 of file CacheMemory.hh.

Referenced by recordRequestType(), and regStats().

Stats::Scalar CacheMemory::numDataArrayStalls

Definition at line 147 of file CacheMemory.hh.

Referenced by checkResourceAvailable(), and regStats().

Stats::Scalar CacheMemory::numDataArrayWrites

Definition at line 142 of file CacheMemory.hh.

Referenced by recordRequestType(), and regStats().

Stats::Scalar CacheMemory::numTagArrayReads

Definition at line 143 of file CacheMemory.hh.

Referenced by recordRequestType(), and regStats().

Stats::Scalar CacheMemory::numTagArrayStalls

Definition at line 146 of file CacheMemory.hh.

Referenced by checkResourceAvailable(), and regStats().

Stats::Scalar CacheMemory::numTagArrayWrites

Definition at line 144 of file CacheMemory.hh.

Referenced by recordRequestType(), and regStats().

BankedArray CacheMemory::tagArray

private

Definition at line 179 of file CacheMemory.hh.

Referenced by checkResourceAvailable(), getTagLatency(), and recordRequestType().

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

mem/ruby/structures/CacheMemory.hh
mem/ruby/structures/CacheMemory.cc

Public Attributes
Stats::Scalar	m_demand_hits

Stats::Scalar	m_demand_misses

Stats::Formula	m_demand_accesses

Stats::Scalar	m_sw_prefetches

Stats::Scalar	m_hw_prefetches

Stats::Formula	m_prefetches

Stats::Vector	m_accessModeType

Stats::Scalar	numDataArrayReads

Stats::Scalar	numDataArrayWrites

Stats::Scalar	numTagArrayReads

Stats::Scalar	numTagArrayWrites

Stats::Scalar	numTagArrayStalls

Stats::Scalar	numDataArrayStalls

Public Types

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation