Least Recently Granted Queue Policy It selects packets from the queue with a round robin-like policy: using the requestor id as a switching parameter rather than switching over a time quantum. More...

#include <q_policy.hh>

Inheritance diagram for QoS::LrgQueuePolicy:

Public Member Functions
	LrgQueuePolicy (const QoSMemCtrlParams *p)

void	enqueuePacket (PacketPtr pkt) override
	This method is called by the memory controller after it enqueues a packet. More...

PacketQueue::iterator	selectPacket (PacketQueue *queue) override
	Implements LRG packet select policy. More...

Public Member Functions inherited from QoS::QueuePolicy
void	setMemCtrl (MemCtrl *mem)
	Setting a pointer to the Memory Controller implementing the policy. More...

virtual	~QueuePolicy ()

Protected Attributes
std::list< RequestorID >	toServe
	Support structure for lrg algorithms: keeps track of serviced requestors, always serve the front element. More...

Protected Attributes inherited from QoS::QueuePolicy
MemCtrl *	memCtrl
	Pointer to parent memory controller implementing the policy. More...

Additional Inherited Members
Public Types inherited from QoS::QueuePolicy
typedef std::deque< PacketPtr >	PacketQueue

Static Public Member Functions inherited from QoS::QueuePolicy
static QueuePolicy *	create (const QoSMemCtrlParams *p)
	This factory method is used for generating the queue policy. More...

Protected Member Functions inherited from QoS::QueuePolicy
	QueuePolicy (const QoSMemCtrlParams *p)

Detailed Description

Least Recently Granted Queue Policy It selects packets from the queue with a round robin-like policy: using the requestor id as a switching parameter rather than switching over a time quantum.

Definition at line 161 of file q_policy.hh.

Constructor & Destructor Documentation

◆ LrgQueuePolicy()

QoS::LrgQueuePolicy::LrgQueuePolicy ( const QoSMemCtrlParams * p )

inline

Definition at line 164 of file q_policy.hh.

Member Function Documentation

◆ enqueuePacket()

void QoS::LrgQueuePolicy::enqueuePacket ( PacketPtr pkt )

overridevirtual

This method is called by the memory controller after it enqueues a packet.

It is a way for the queue policy to hook into the packet enqueuing and update relevant metadata. This will then be used once the QueuePolicy::selectPacket will be called.

Parameters

pkt	Enqueued packet

Reimplemented from QoS::QueuePolicy.

Definition at line 139 of file q_policy.cc.

References QoS::MemCtrl::hasRequestor(), QoS::QueuePolicy::memCtrl, Packet::requestorId(), and toServe.

◆ selectPacket()

QueuePolicy::PacketQueue::iterator QoS::LrgQueuePolicy::selectPacket ( PacketQueue * queue )

overridevirtual

Implements LRG packet select policy.

Parameters

queue The queue in which to select a packet

Returns: Iterator to the selected packet

Implements QoS::QueuePolicy.

Definition at line 66 of file q_policy.cc.

References DPRINTF, QoS::MemCtrl::hasRequestor(), QoS::QueuePolicy::memCtrl, panic_if, ArmISA::q, and toServe.

Member Data Documentation

◆ toServe

std::list<RequestorID> QoS::LrgQueuePolicy::toServe

protected

Support structure for lrg algorithms: keeps track of serviced requestors, always serve the front element.

Definition at line 185 of file q_policy.hh.

Referenced by enqueuePacket(), and selectPacket().

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

mem/qos/q_policy.hh
mem/qos/q_policy.cc

Public Member Functions

Protected Attributes

Additional Inherited Members