The QueuedMasterPort combines two queues, a request queue and a snoop response queue, that both share the same port. More...

#include <qport.hh>

Inheritance diagram for QueuedMasterPort:

Public Member Functions
	QueuedMasterPort (const std::string &name, MemObject *owner, ReqPacketQueue &req_queue, SnoopRespPacketQueue &snoop_resp_queue, PortID id=InvalidPortID)
	Create a QueuedPort with a given name, owner, and a supplied implementation of two packet queues. More...

virtual	~QueuedMasterPort ()

void	schedTimingReq (PacketPtr pkt, Tick when)
	Schedule the sending of a timing request. More...

void	schedTimingSnoopResp (PacketPtr pkt, Tick when, bool force_order=false)
	Schedule the sending of a timing snoop response. More...

bool	checkFunctional (PacketPtr pkt)
	Check the list of buffered packets against the supplied functional request. More...

Public Member Functions inherited from MasterPort
	MasterPort (const std::string &name, MemObject *owner, PortID id=InvalidPortID)
	Master port. More...

virtual	~MasterPort ()

void	bind (BaseSlavePort &slave_port)
	Bind this master port to a slave port. More...

void	unbind ()
	Unbind this master port and the associated slave port. More...

Tick	sendAtomic (PacketPtr pkt)
	Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More...

void	sendFunctional (PacketPtr pkt)
	Send a functional request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. More...

bool	sendTimingReq (PacketPtr pkt)
	Attempt to send a timing request to the slave port by calling its corresponding receive function. More...

bool	sendTimingSnoopResp (PacketPtr pkt)
	Attempt to send a timing snoop response packet to the slave port by calling its corresponding receive function. More...

virtual void	sendRetryResp ()
	Send a retry to the slave port that previously attempted a sendTimingResp to this master port and failed. More...

virtual bool	isSnooping () const
	Determine if this master port is snooping or not. More...

AddrRangeList	getAddrRanges () const
	Get the address ranges of the connected slave port. More...

void	printAddr (Addr a)
	Inject a PrintReq for the given address to print the state of that address throughout the memory system. More...

Public Member Functions inherited from BaseMasterPort
BaseSlavePort &	getSlavePort () const

bool	isConnected () const

Public Member Functions inherited from Port
const std::string	name () const
	Return port name (for DPRINTF). More...

PortID	getId () const
	Get the port id. More...

Protected Member Functions
void	recvReqRetry ()
	Called by the slave port if sendTimingReq was called on this master port (causing recvTimingReq to be called on the slave port) and was unsuccesful. More...

void	recvRetrySnoopResp ()
	Called by the slave port if sendTimingSnoopResp was called on this master port (causing recvTimingSnoopResp to be called on the slave port) and was unsuccesful. More...

Protected Member Functions inherited from MasterPort
virtual Tick	recvAtomicSnoop (PacketPtr pkt)
	Receive an atomic snoop request packet from the slave port. More...

virtual void	recvFunctionalSnoop (PacketPtr pkt)
	Receive a functional snoop request packet from the slave port. More...

virtual bool	recvTimingResp (PacketPtr pkt)=0
	Receive a timing response from the slave port. More...

virtual void	recvTimingSnoopReq (PacketPtr pkt)
	Receive a timing snoop request from the slave port. More...

virtual void	recvRangeChange ()
	Called to receive an address range change from the peer slave port. More...

Protected Member Functions inherited from BaseMasterPort
	BaseMasterPort (const std::string &name, MemObject *owner, PortID id=InvalidPortID)

virtual	~BaseMasterPort ()

Protected Member Functions inherited from Port
	Port (const std::string &_name, MemObject &_owner, PortID _id)
	Abstract base class for ports. More...

virtual	~Port ()
	Virtual destructor due to inheritance. More...

Protected Attributes
ReqPacketQueue &	reqQueue
	Packet queue used to store outgoing requests. More...

SnoopRespPacketQueue &	snoopRespQueue
	Packet queue used to store outgoing snoop responses. More...

Protected Attributes inherited from BaseMasterPort
BaseSlavePort *	_baseSlavePort

Protected Attributes inherited from Port
const PortID	id
	A numeric identifier to distinguish ports in a vector, and set to InvalidPortID in case this port is not part of a vector. More...

MemObject &	owner
	A reference to the MemObject that owns this port. More...

Detailed Description

The QueuedMasterPort combines two queues, a request queue and a snoop response queue, that both share the same port.

The flow control for requests and snoop responses are completely independent, and so each queue manages its own flow control (retries).

Definition at line 107 of file qport.hh.

Constructor & Destructor Documentation

QueuedMasterPort::QueuedMasterPort	(	const std::string &	name,
		MemObject *	owner,
		ReqPacketQueue &	req_queue,
		SnoopRespPacketQueue &	snoop_resp_queue,
		PortID	id = `InvalidPortID`
	)

inline

Create a QueuedPort with a given name, owner, and a supplied implementation of two packet queues.

The external definition of the queues enables e.g. the cache to implement a specific queue behaviuor in a subclass, and provide the latter to the QueuePort constructor.

Definition at line 131 of file qport.hh.

virtual QueuedMasterPort::~QueuedMasterPort ( )

inlinevirtual

Definition at line 139 of file qport.hh.

Member Function Documentation

bool QueuedMasterPort::checkFunctional ( PacketPtr pkt )

inline

Check the list of buffered packets against the supplied functional request.

Definition at line 162 of file qport.hh.

References PacketQueue::checkFunctional(), reqQueue, and snoopRespQueue.

Referenced by Cache::functionalAccess(), and AbstractController::functionalMemoryWrite().

void QueuedMasterPort::recvReqRetry ( )

inlineprotectedvirtual

Called by the slave port if sendTimingReq was called on this master port (causing recvTimingReq to be called on the slave port) and was unsuccesful.

Implements MasterPort.

Definition at line 118 of file qport.hh.

References reqQueue, and PacketQueue::retry().

void QueuedMasterPort::recvRetrySnoopResp ( )

inlineprotectedvirtual

Called by the slave port if sendTimingSnoopResp was called on this master port (causing recvTimingSnoopResp to be called on the slave port) and was unsuccesful.

Reimplemented from MasterPort.

Definition at line 120 of file qport.hh.

References PacketQueue::retry(), and snoopRespQueue.