A queue entry base class, to be used by both the MSHRs and write-queue entries. More...

#include <queue_entry.hh>

Inheritance diagram for QueueEntry:

Classes
class	Target
	A queue entry is holding packets that will be serviced as soon as resources are available. More...

Public Member Functions
	QueueEntry ()

bool	isUncacheable () const

virtual bool	matchBlockAddr (const Addr addr, const bool is_secure) const =0
	Check if entry corresponds to the one being looked for. More...

virtual bool	matchBlockAddr (const PacketPtr pkt) const =0
	Check if entry contains a packet that corresponds to the one being looked for. More...

virtual bool	conflictAddr (const QueueEntry *entry) const =0
	Check if given entry's packets conflict with this' entries packets. More...

virtual bool	sendPacket (BaseCache &cache)=0
	Send this queue entry as a downstream packet, with the exact behaviour depending on the specific entry type. More...

virtual Target *	getTarget ()=0
	Returns a pointer to the first target. More...

Public Member Functions inherited from Packet::SenderState
	SenderState ()

virtual	~SenderState ()

Public Attributes
bool	inService
	True if the entry has been sent downstream. More...

Counter	order
	Order number assigned to disambiguate writes and misses. More...

Addr	blkAddr
	Block aligned address. More...

unsigned	blkSize
	Block size of the cache. More...

bool	isSecure
	True if the entry targets the secure memory space. More...

Public Attributes inherited from Packet::SenderState
SenderState *	predecessor

Protected Attributes
Tick	readyTime
	Tick when ready to issue. More...

bool	_isUncacheable
	True if the entry is uncacheable. More...

Friends
template<class Entry >
class	Queue
	Consider the Queue a friend to avoid making everything public. More...

Detailed Description

A queue entry base class, to be used by both the MSHRs and write-queue entries.

Definition at line 58 of file queue_entry.hh.

Constructor & Destructor Documentation

◆ QueueEntry()

QueueEntry::QueueEntry ( )

inline

Definition at line 119 of file queue_entry.hh.

Member Function Documentation

◆ conflictAddr()

virtual bool QueueEntry::conflictAddr ( const QueueEntry * entry ) const

pure virtual

Check if given entry's packets conflict with this' entries packets.

Parameters

entry Other entry to compare against.

Returns: True if entry matches given information.

Implemented in MSHR, and WriteQueueEntry.

◆ getTarget()

virtual Target* QueueEntry::getTarget ( )

pure virtual

Returns a pointer to the first target.

Returns: A pointer to the first target.

Implemented in MSHR, and WriteQueueEntry.

Referenced by BaseCache::CacheReqPacketQueue::sendDeferredPacket().

◆ isUncacheable()

bool QueueEntry::isUncacheable ( ) const

inline

Definition at line 124 of file queue_entry.hh.

References _isUncacheable.

Referenced by Cache::recvTimingSnoopReq().

◆ matchBlockAddr() [1/2]

virtual bool QueueEntry::matchBlockAddr	(	const Addr	addr,
		const bool	is_secure
	)		const

pure virtual

Check if entry corresponds to the one being looked for.

Parameters

addr	Address to match against.
is_secure	Whether the target should be in secure space or not.

Returns: True if entry matches given information.

Implemented in MSHR, and WriteQueueEntry.

Referenced by WriteQueueEntry::conflictAddr(), and MSHR::conflictAddr().

◆ matchBlockAddr() [2/2]

virtual bool QueueEntry::matchBlockAddr ( const PacketPtr pkt ) const

pure virtual

Check if entry contains a packet that corresponds to the one being looked for.

Parameters

pkt	The packet to search for.

Returns: True if any of its targets' packets matches the given one.

Implemented in MSHR, and WriteQueueEntry.

◆ sendPacket()

virtual bool QueueEntry::sendPacket ( BaseCache & cache )

pure virtual

Send this queue entry as a downstream packet, with the exact behaviour depending on the specific entry type.

Implemented in MSHR, and WriteQueueEntry.

Referenced by BaseCache::CacheReqPacketQueue::sendDeferredPacket().

Friends And Related Function Documentation

◆ Queue

template<class Entry >

friend class Queue

friend

Consider the Queue a friend to avoid making everything public.

Definition at line 65 of file queue_entry.hh.

Member Data Documentation

◆ _isUncacheable

bool QueueEntry::_isUncacheable

protected

True if the entry is uncacheable.

Definition at line 73 of file queue_entry.hh.

Referenced by WriteQueueEntry::allocate(), MSHR::allocate(), isUncacheable(), WriteQueueEntry::print(), and MSHR::print().

◆ blkAddr

Addr QueueEntry::blkAddr

Block aligned address.

Definition at line 111 of file queue_entry.hh.

Referenced by WriteQueueEntry::allocate(), MSHR::allocate(), WriteQueueEntry::conflictAddr(), MSHR::conflictAddr(), MSHR::extractServiceableTargets(), WriteQueueEntry::matchBlockAddr(), MSHR::matchBlockAddr(), WriteQueueEntry::print(), MSHR::print(), Cache::sendMSHRQueuePacket(), BaseCache::sendMSHRQueuePacket(), WriteQueueEntry::trySatisfyFunctional(), and MSHR::trySatisfyFunctional().

◆ blkSize

unsigned QueueEntry::blkSize

Block size of the cache.

Definition at line 114 of file queue_entry.hh.

Referenced by WriteQueueEntry::allocate(), MSHR::allocate(), MSHR::extractServiceableTargets(), MSHR::handleSnoop(), WriteQueueEntry::matchBlockAddr(), MSHR::matchBlockAddr(), WriteQueueEntry::print(), MSHR::print(), WriteQueueEntry::trySatisfyFunctional(), MSHR::trySatisfyFunctional(), and MSHR::TargetList::updateWriteFlags().

◆ inService

bool QueueEntry::inService

True if the entry has been sent downstream.

Definition at line 105 of file queue_entry.hh.

Referenced by WriteQueueEntry::allocate(), MSHR::allocate(), MSHR::allocateTarget(), BaseCache::allocateWriteBuffer(), WriteQueueEntry::deallocate(), MSHR::deallocate(), BaseCache::functionalAccess(), MSHR::handleSnoop(), MSHR::hasPostDowngrade(), MSHR::hasPostInvalidate(), MSHR::isPendingModified(), MSHR::markInService(), MSHRQueue::markPending(), MSHRQueue::moveToFront(), WriteQueueEntry::print(), and MSHR::print().

◆ isSecure

bool QueueEntry::isSecure

True if the entry targets the secure memory space.

Definition at line 117 of file queue_entry.hh.

Referenced by WriteQueueEntry::allocate(), MSHR::allocate(), WriteQueueEntry::conflictAddr(), MSHR::conflictAddr(), WriteQueueEntry::matchBlockAddr(), MSHR::matchBlockAddr(), WriteQueueEntry::print(), MSHR::print(), Cache::sendMSHRQueuePacket(), BaseCache::sendMSHRQueuePacket(), WriteQueueEntry::trySatisfyFunctional(), and MSHR::trySatisfyFunctional().

◆ order

Counter QueueEntry::order

Order number assigned to disambiguate writes and misses.

Definition at line 108 of file queue_entry.hh.

Referenced by WriteQueueEntry::TargetList::add(), MSHR::TargetList::add(), WriteQueueEntry::allocate(), MSHR::allocate(), BaseCache::getNextQueueEntry(), and MSHR::promoteDeferredTargets().

◆ readyTime

Tick QueueEntry::readyTime

protected

Tick when ready to issue.

Definition at line 70 of file queue_entry.hh.

Referenced by WriteQueueEntry::TargetList::add(), MSHR::TargetList::add(), WriteQueueEntry::allocate(), MSHR::allocate(), MSHR::delay(), and MSHR::promoteDeferredTargets().

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

mem/cache/queue_entry.hh

Classes

Public Member Functions

Public Attributes

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ QueueEntry()

Member Function Documentation

◆ conflictAddr()

◆ getTarget()

◆ isUncacheable()

◆ matchBlockAddr() [1/2]

◆ matchBlockAddr() [2/2]

◆ sendPacket()

Friends And Related Function Documentation

◆ Queue

Member Data Documentation

◆ _isUncacheable

◆ blkAddr

◆ blkSize

◆ inService

◆ isSecure

◆ order

◆ readyTime