gem5::ReplaceableEntry Class Reference

A replaceable entry is a basic entry in a 2d table-like structure that needs to have replacement functionality. More...

#include <replaceable_entry.hh>

Inheritance diagram for gem5::ReplaceableEntry:

Public Member Functions
	ReplaceableEntry ()=default
virtual	~ReplaceableEntry ()=default
virtual void	setPosition (const uint32_t set, const uint32_t way)
	Set both the set and way. More...
uint32_t	getSet () const
	Get set number. More...
uint32_t	getWay () const
	Get way number. More...
virtual std::string	print () const
	Prints relevant information about this entry. More...

Public Attributes
std::shared_ptr< replacement_policy::ReplacementData >	replacementData
	Replacement data associated to this entry. More...

Protected Attributes
uint32_t	_set
	Set to which this entry belongs. More...
uint32_t	_way
	Way (relative position within the set) to which this entry belongs. More...

Detailed Description

A replaceable entry is a basic entry in a 2d table-like structure that needs to have replacement functionality.

This entry is located in a specific row and column of the table (set and way in cache nomenclature), which are stored within the entry itself.

It contains the replacement data pointer, which must be instantiated by the replacement policy before being used.

See also

Replacement Policies

Definition at line 63 of file replaceable_entry.hh.

Constructor & Destructor Documentation

ReplaceableEntry()

gem5::ReplaceableEntry::ReplaceableEntry ( )

default

~ReplaceableEntry()

virtual gem5::ReplaceableEntry::~ReplaceableEntry ( )

virtualdefault

Member Function Documentation

getSet()

uint32_t gem5::ReplaceableEntry::getSet ( ) const

inline

Get set number.

Returns

The set to which this entry belongs.

Definition at line 104 of file replaceable_entry.hh.

References _set.

Referenced by gem5::ruby::CacheMemory::deallocate(), print(), gem5::SetAssociative::regenerateAddr(), and gem5::SkewedAssociative::regenerateAddr().

getWay()

uint32_t gem5::ReplaceableEntry::getWay ( ) const

inline

Get way number.

Returns

The way to which this entry belongs.

Definition at line 111 of file replaceable_entry.hh.

References _way.

Referenced by gem5::ruby::CacheMemory::deallocate(), print(), and gem5::SkewedAssociative::regenerateAddr().

print()

virtual std::string gem5::ReplaceableEntry::print ( ) const

inlinevirtual

Prints relevant information about this entry.

Returns

A string containg the contents of this entry.

Reimplemented in gem5::CacheBlk, gem5::SuperBlk, gem5::SectorBlk, gem5::CompressionBlk, gem5::SectorSubBlk, gem5::TaggedEntry, and gem5::FALRUBlk.

Definition at line 119 of file replaceable_entry.hh.

References gem5::csprintf(), getSet(), and getWay().

Referenced by gem5::TaggedEntry::print().

setPosition()

virtual void gem5::ReplaceableEntry::setPosition ( const uint32_t  set, const uint32_t  way  )

inlinevirtual

Set both the set and way.

Should be called only once.

Parameters

set	The set of this entry.
way	The way of this entry.

Reimplemented in gem5::SectorBlk.

Definition at line 93 of file replaceable_entry.hh.

References _set, and _way.

Referenced by gem5::BaseIndexingPolicy::setEntry(), gem5::SectorBlk::setPosition(), and gem5::FALRU::tagsInit().

Member Data Documentation

_set

uint32_t gem5::ReplaceableEntry::_set

protected

Set to which this entry belongs.

Definition at line 69 of file replaceable_entry.hh.

Referenced by getSet(), and setPosition().

_way

uint32_t gem5::ReplaceableEntry::_way

protected

Way (relative position within the set) to which this entry belongs.

Definition at line 74 of file replaceable_entry.hh.

Referenced by getWay(), and setPosition().

replacementData

std::shared_ptr<replacement_policy::ReplacementData> gem5::ReplaceableEntry::replacementData

Replacement data associated to this entry.

It must be instantiated by the replacement policy before being used.

Definition at line 84 of file replaceable_entry.hh.

Referenced by gem5::BaseSetAssoc::accessBlock(), gem5::SectorTags::accessBlock(), gem5::ruby::CacheMemory::allocate(), gem5::ruby::CacheMemory::deallocate(), gem5::replacement_policy::WeightedLRU::getVictim(), gem5::replacement_policy::LRU::getVictim(), gem5::replacement_policy::FIFO::getVictim(), gem5::replacement_policy::LFU::getVictim(), gem5::replacement_policy::MRU::getVictim(), gem5::replacement_policy::Dueling::getVictim(), gem5::replacement_policy::SecondChance::getVictim(), gem5::replacement_policy::BRRIP::getVictim(), gem5::SectorTags::insertBlock(), gem5::BaseSetAssoc::insertBlock(), gem5::BaseSetAssoc::invalidate(), gem5::SectorTags::invalidate(), gem5::SectorTags::moveBlock(), gem5::BaseSetAssoc::moveBlock(), gem5::ruby::CacheMemory::setMRU(), gem5::CompressedTags::tagsInit(), gem5::BaseSetAssoc::tagsInit(), gem5::SectorTags::tagsInit(), gem5::ruby::CacheMemory::testCacheAccess(), and gem5::ruby::CacheMemory::tryCacheAccess().

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

• mem/cache/replacement_policies/replaceable_entry.hh