MSHR::TargetList Class Reference

#include <mshr.hh>

Inheritance diagram for MSHR::TargetList:

Public Member Functions
	TargetList ()
void	updateFlags (PacketPtr pkt, Target::Source source, bool alloc_on_fill)
	Use the provided packet and the source to update the flags of this TargetList. More...
void	resetFlags ()
void	populateFlags ()
	Goes through the list of targets and uses them to populate the flags of this TargetList. More...
bool	isReset () const
	Tests if the flags of this TargetList have their default values. More...
void	add (PacketPtr pkt, Tick readyTime, Counter order, Target::Source source, bool markPending, bool alloc_on_fill)
	Add the specified packet in the TargetList. More...
void	replaceUpgrades ()
	Convert upgrades to the equivalent request if the cache line they refer to would have been invalid (Upgrade -> ReadEx, SC* -> Fail). More...
void	clearDownstreamPending ()
bool	checkFunctional (PacketPtr pkt)
void	print (std::ostream &os, int verbosity, const std::string &prefix) const

Public Attributes
bool	needsWritable
bool	hasUpgrade
bool	allocOnFill
	Set when the response should allocate on fill. More...
Public Attributes inherited from std::list< Target >
Target	item
	Dummy Item. More...

Detailed Description

Definition at line 158 of file mshr.hh.

Constructor & Destructor Documentation

MSHR::TargetList::TargetList

(

)

Definition at line 72 of file mshr.cc.

Member Function Documentation

void MSHR::TargetList::add ( PacketPtr  pkt, Tick  readyTime, Counter  order, Target::Source  source, bool  markPending, bool  alloc_on_fill  )

inline

Add the specified packet in the TargetList.

This function stores information related to the added packet and updates accordingly the flags.

Parameters

pkt	Packet considered for adding
readTime	Tick at which the packet is processed by this cache
order	A counter giving a unique id to each target
source	Indicates the source agent of the packet
markPending	Set for deferred targets or pending MSHRs
alloc_on_fill	Whether it should allocate on a fill

Definition at line 109 of file mshr.cc.

References MSHR::downstreamPending, and Packet::findNextSenderState().

Referenced by MSHR::allocate(), MSHR::allocateTarget(), and MSHR::handleSnoop().

bool MSHR::TargetList::checkFunctional

(

PacketPtr

pkt

)

Definition at line 200 of file mshr.cc.

References Packet::checkFunctional(), and ArmISA::t.

Referenced by MSHR::checkFunctional().

void MSHR::TargetList::clearDownstreamPending

(

)

Definition at line 179 of file mshr.cc.

References MSHR::clearDownstreamPending(), and ArmISA::t.

Referenced by MSHR::clearDownstreamPending(), MSHR::markInService(), and MSHR::promoteWritable().

bool MSHR::TargetList::isReset ( ) const

inline

Tests if the flags of this TargetList have their default values.

Definition at line 193 of file mshr.hh.

References allocOnFill, hasUpgrade, and needsWritable.

Referenced by MSHR::allocate(), and MSHR::deallocate().

void MSHR::TargetList::populateFlags

(

)

Goes through the list of targets and uses them to populate the flags of this TargetList.

When the function returns the flags are consistent with the properties of packets in the list.

Definition at line 100 of file mshr.cc.

References ArmISA::t.

Referenced by MSHR::extractServiceableTargets(), and MSHR::promoteDeferredTargets().

void MSHR::TargetList::print	(	std::ostream &	os,
		int	verbosity,
		const std::string &	prefix
	)		const

Definition at line 213 of file mshr.cc.

References ccprintf(), MSHR::Target::FromCPU, MSHR::Target::FromPrefetcher, MSHR::Target::FromSnoop, ArmISA::s, and ArmISA::t.

Referenced by MSHR::print().

void MSHR::TargetList::replaceUpgrades

(

)

Convert upgrades to the equivalent request if the cache line they refer to would have been invalid (Upgrade -> ReadEx, SC* -> Fail).

Used to rejig ordering between targets waiting on an MSHR.

Definition at line 165 of file mshr.cc.

References replaceUpgrade(), and ArmISA::t.

Referenced by MSHR::handleSnoop().

void MSHR::TargetList::resetFlags ( )

inline

Definition at line 179 of file mshr.hh.

References allocOnFill, hasUpgrade, and needsWritable.

Referenced by MSHR::deallocate(), MSHR::promoteDeferredTargets(), and MSHR::promoteWritable().

void MSHR::TargetList::updateFlags	(	PacketPtr	pkt,
		Target::Source	source,
		bool	alloc_on_fill
	)

Use the provided packet and the source to update the flags of this TargetList.

Parameters

pkt	Packet considered for the flag update
source	Indicates the source of the packet
alloc_on_fill	Whether the pkt would allocate on a fill

Definition at line 78 of file mshr.cc.

References MSHR::allocOnFill(), Packet::cmd, MSHR::Target::FromSnoop, Packet::isUpgrade(), MSHR::needsWritable(), Packet::needsWritable(), and MemCmd::StoreCondReq.

Member Data Documentation

bool MSHR::TargetList::allocOnFill

Set when the response should allocate on fill.

Definition at line 164 of file mshr.hh.

Referenced by MSHR::allocOnFill(), isReset(), and resetFlags().

bool MSHR::TargetList::hasUpgrade

Definition at line 162 of file mshr.hh.

Referenced by isReset(), and resetFlags().

bool MSHR::TargetList::needsWritable

Definition at line 161 of file mshr.hh.

Referenced by MSHR::handleSnoop(), isReset(), MSHR::markInService(), MSHR::needsWritable(), MSHR::promoteWritable(), and resetFlags().

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

• mem/cache/mshr.hh
• mem/cache/mshr.cc