gem5::SectorBlk Class Reference

A Basic Sector block. More...

#include <sector_blk.hh>

Inheritance diagram for gem5::SectorBlk:

Public Member Functions
	SectorBlk ()
	SectorBlk (const SectorBlk &)=delete
SectorBlk &	operator= (const SectorBlk &)=delete
	~SectorBlk ()
bool	isValid () const override
	Checks that a sector block is valid.
uint8_t	getNumValid () const
	Get the number of sub-blocks that have been validated.
void	validateSubBlk ()
	Increase the number of valid sub-blocks.
void	invalidateSubBlk ()
	Decrease the number of valid sub-blocks.
void	setPosition (const uint32_t set, const uint32_t way) override
	Sets the position of the sub-entries, besides its own.
std::string	print () const override
	Print relevant information for this sector block and its sub-blocks.
Public Member Functions inherited from gem5::TaggedEntry
	TaggedEntry ()
	~TaggedEntry ()=default
void	registerTagExtractor (TagExtractor ext)
bool	isSecure () const
	Check if this block holds data from the secure memory space.
virtual Addr	getTag () const
	Get tag associated to this block.
bool	match (const KeyType &key) const
	Checks if the given tag information corresponds to this entry's.
virtual void	insert (const KeyType &key)
	Insert the block by assigning it a tag and marking it valid.
virtual void	invalidate ()
	Invalidate the block.
std::string	print () const override
	Prints relevant information about this entry.
Public Member Functions inherited from gem5::ReplaceableEntry
	ReplaceableEntry ()
virtual	~ReplaceableEntry ()=default
uint32_t	getSet () const
	Get set number.
uint32_t	getWay () const
	Get way number.

Public Attributes
std::vector< SectorSubBlk * >	blks
	List of blocks associated to this sector.
Public Attributes inherited from gem5::ReplaceableEntry
std::shared_ptr< replacement_policy::ReplacementData >	replacementData
	Replacement data associated to this entry.

Private Attributes
uint8_t	_validCounter
	Counter of the number of valid sub-blocks.

Additional Inherited Members
Public Types inherited from gem5::TaggedEntry
using	KeyType = TaggedTypes::KeyType
using	IndexingPolicy = TaggedIndexingPolicy
using	TagExtractor = std::function<Addr(Addr)>
Protected Member Functions inherited from gem5::TaggedEntry
virtual void	setTag (Addr tag)
	Set tag associated to this block.
virtual void	setSecure ()
	Set secure bit.
void	clearSecure ()
	Clear secure bit.
virtual void	setValid ()
	Set valid bit.
Protected Attributes inherited from gem5::TaggedEntry
TagExtractor	extractTag
	Callback used to extract the tag from the entry.
Protected Attributes inherited from gem5::ReplaceableEntry
uint32_t	_set
	Set to which this entry belongs.
uint32_t	_way
	Way (relative position within the set) to which this entry belongs.

Detailed Description

A Basic Sector block.

Contains the tag and a list of blocks associated to this sector.

Definition at line 135 of file sector_blk.hh.

Constructor & Destructor Documentation

SectorBlk() [1/2]

gem5::SectorBlk::SectorBlk

(

)

Definition at line 114 of file sector_blk.cc.

References _validCounter, and gem5::TaggedEntry::TaggedEntry().

Referenced by operator=(), SectorBlk(), and gem5::SuperBlk::SuperBlk().

SectorBlk() [2/2]

gem5::SectorBlk::SectorBlk ( const SectorBlk & )

delete

References SectorBlk().

~SectorBlk()

gem5::SectorBlk::~SectorBlk ( )

inline

Definition at line 148 of file sector_blk.hh.

Member Function Documentation

getNumValid()

uint8_t gem5::SectorBlk::getNumValid

(

)

const

Get the number of sub-blocks that have been validated.

Returns

The number of valid sub-blocks.

Definition at line 127 of file sector_blk.cc.

References _validCounter.

Referenced by gem5::SuperBlk::canCoAllocate(), print(), gem5::SuperBlk::setCompressionFactor(), and gem5::CompressionBlk::setSizeBits().

invalidateSubBlk()

void gem5::SectorBlk::invalidateSubBlk

(

)

Decrease the number of valid sub-blocks.

Definition at line 139 of file sector_blk.cc.

References _validCounter, and gem5::TaggedEntry::invalidate().

isValid()

bool gem5::SectorBlk::isValid ( ) const

overridevirtual

Checks that a sector block is valid.

Returns

True if any of the blocks in the sector is valid.

Reimplemented from gem5::TaggedEntry.

Definition at line 120 of file sector_blk.cc.

References _validCounter.

Referenced by gem5::SectorTags::insertBlock(), gem5::SectorTags::invalidate(), and gem5::SectorTags::moveBlock().

operator=()

SectorBlk & gem5::SectorBlk::operator= ( const SectorBlk & )

delete

References SectorBlk().

print()

std::string gem5::SectorBlk::print ( ) const

overridevirtual

Print relevant information for this sector block and its sub-blocks.

Returns

A string with the contents of the sector block.

Reimplemented from gem5::ReplaceableEntry.

Reimplemented in gem5::SuperBlk.

Definition at line 158 of file sector_blk.cc.

References blks, gem5::csprintf(), getNumValid(), and gem5::TaggedEntry::print().

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

setPosition()

void gem5::SectorBlk::setPosition ( const uint32_t set, const uint32_t way )

overridevirtual

Sets the position of the sub-entries, besides its own.

Parameters

set	The set of this entry and sub-entries.
way	The way of this entry and sub-entries.

Reimplemented from gem5::ReplaceableEntry.

Definition at line 149 of file sector_blk.cc.

References blks, gem5::ArmISA::set, and gem5::ReplaceableEntry::setPosition().

validateSubBlk()

void gem5::SectorBlk::validateSubBlk

(

)

Increase the number of valid sub-blocks.

Definition at line 133 of file sector_blk.cc.

References _validCounter.

Member Data Documentation

_validCounter

uint8_t gem5::SectorBlk::_validCounter

private

Counter of the number of valid sub-blocks.

The sector is valid if any of its sub-blocks is valid.

Definition at line 142 of file sector_blk.hh.

Referenced by getNumValid(), invalidateSubBlk(), isValid(), SectorBlk(), and validateSubBlk().

blks

std::vector<SectorSubBlk*> gem5::SectorBlk::blks

List of blocks associated to this sector.

Definition at line 151 of file sector_blk.hh.

Referenced by gem5::SuperBlk::calculateCompressionFactor(), gem5::CompressedTags::findVictim(), gem5::SectorTags::findVictim(), gem5::SuperBlk::isCompressed(), print(), setPosition(), gem5::CompressedTags::tagsInit(), gem5::SectorTags::tagsInit(), and gem5::BaseCache::updateCompressionData().

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

• mem/cache/tags/sector_blk.hh
• mem/cache/tags/sector_blk.cc