the port intended to communicate between the CU and its LDS More...

#include <compute_unit.hh>

Inheritance diagram for ComputeUnit::LDSPort:

Classes
class	SenderState
	SenderState is information carried along with the packet, esp. More...

Public Member Functions
	LDSPort (const std::string &_name, ComputeUnit *_cu, PortID _id)

bool	isStalled () const

void	stallPort ()

void	unstallPort ()

virtual bool	sendTimingReq (PacketPtr pkt)
	attempt to send this packet, either the port is already stalled, the request is nack'd and must stall or the request goes through when a request cannot be sent, add it to the retries queue 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...

Public Attributes
std::queue< PacketPtr >	retries
	here we queue all the requests that were not successfully sent. More...

Protected Member Functions
virtual bool	recvTimingResp (PacketPtr pkt)
	get the result of packets sent to the LDS when they return More...

virtual Tick	recvAtomic (PacketPtr pkt)

virtual void	recvFunctional (PacketPtr pkt)

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

virtual void	recvReqRetry ()
	the bus is telling the port that there is now space so retrying stalled requests should work now this allows the port to have a request be nack'd and then have the receiver say when there is space, rather than simply retrying the send every cycle 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 void	recvTimingSnoopReq (PacketPtr pkt)
	Receive a timing snoop request from the slave port. More...

virtual 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 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
bool	stalled = false
	whether or not it is stalled More...

ComputeUnit *	computeUnit

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 port intended to communicate between the CU and its LDS

Definition at line 629 of file compute_unit.hh.

Constructor & Destructor Documentation

ComputeUnit::LDSPort::LDSPort	(	const std::string &	_name,
		ComputeUnit *	_cu,
		PortID	_id
	)

inline

Definition at line 632 of file compute_unit.hh.

Member Function Documentation

bool ComputeUnit::LDSPort::isStalled ( ) const

inline

Definition at line 637 of file compute_unit.hh.

References stalled.

virtual Tick ComputeUnit::LDSPort::recvAtomic ( PacketPtr pkt )

inlineprotectedvirtual

Definition at line 683 of file compute_unit.hh.

virtual void ComputeUnit::LDSPort::recvFunctional ( PacketPtr pkt )

inlineprotectedvirtual

Definition at line 686 of file compute_unit.hh.

virtual void ComputeUnit::LDSPort::recvRangeChange ( )

inlineprotectedvirtual

Called to receive an address range change from the peer slave port.

The default implementation ignores the change and does nothing. Override this function in a derived class if the owner needs to be aware of the address ranges, e.g. in an interconnect component like a bus.

Reimplemented from MasterPort.

Definition at line 691 of file compute_unit.hh.

void ComputeUnit::LDSPort::recvReqRetry ( )

protectedvirtual

the bus is telling the port that there is now space so retrying stalled requests should work now this allows the port to have a request be nack'd and then have the receiver say when there is space, rather than simply retrying the send every cycle

Implements MasterPort.

Definition at line 1882 of file compute_unit.cc.

References DPRINTF, fatal_if(), and MasterPort::sendTimingReq().

bool ComputeUnit::LDSPort::recvTimingResp ( PacketPtr pkt )

protectedvirtual

get the result of packets sent to the LDS when they return

Implements MasterPort.

Definition at line 1817 of file compute_unit.cc.

References fatal_if(), ComputeUnit::LDSPort::SenderState::getMemInst(), Packet::req, and Packet::senderState.

bool ComputeUnit::LDSPort::sendTimingReq ( PacketPtr pkt )

virtual

attempt to send this packet, either the port is already stalled, the request is nack'd and must stall or the request goes through when a request cannot be sent, add it to the retries queue

Definition at line 1840 of file compute_unit.cc.

References DPRINTF, fatal_if(), ComputeUnit::LDSPort::SenderState::getMemInst(), Request::getPaddr(), M5_VAR_USED, Packet::req, Packet::senderState, and MasterPort::sendTimingReq().

Referenced by ComputeUnit::sendToLds().

void ComputeUnit::LDSPort::stallPort ( )

inline

Definition at line 638 of file compute_unit.hh.

References stalled.

void ComputeUnit::LDSPort::unstallPort ( )

inline

Definition at line 639 of file compute_unit.hh.

References stalled.

Member Data Documentation

ComputeUnit* ComputeUnit::LDSPort::computeUnit

protected

Definition at line 677 of file compute_unit.hh.

std::queue<PacketPtr> ComputeUnit::LDSPort::retries

here we queue all the requests that were not successfully sent.

Definition at line 645 of file compute_unit.hh.

bool ComputeUnit::LDSPort::stalled = false

protected

whether or not it is stalled

Definition at line 675 of file compute_unit.hh.

Referenced by isStalled(), stallPort(), and unstallPort().

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

gpu-compute/compute_unit.hh
gpu-compute/compute_unit.cc

Classes

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation