#include <compute_unit.hh>

Inheritance diagram for ComputeUnit::DataPort:

Classes
class	MemReqEvent

class	MemRespEvent

struct	SenderState

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

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
bool	snoopRangeSent

std::deque< std::pair < PacketPtr, GPUDynInstPtr > >	retries

Protected Member Functions
virtual bool	recvTimingResp (PacketPtr pkt)
	Receive a timing response from the slave port. 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 ()
	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...

virtual void	getDeviceAddressRanges (AddrRangeList &resp, bool &snoop)

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
ComputeUnit *	computeUnit

int	index

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

Data access Port.

Definition at line 421 of file compute_unit.hh.

Constructor & Destructor Documentation

ComputeUnit::DataPort::DataPort	(	const std::string &	_name,
		ComputeUnit *	_cu,
		PortID	_index
	)

inline

Definition at line 424 of file compute_unit.hh.

Member Function Documentation

virtual void ComputeUnit::DataPort::getDeviceAddressRanges	(	AddrRangeList &	resp,
		bool &	snoop
	)

inlineprotectedvirtual

Definition at line 490 of file compute_unit.hh.

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

inlineprotectedvirtual

Definition at line 484 of file compute_unit.hh.

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

inlineprotectedvirtual

Definition at line 485 of file compute_unit.hh.

virtual void ComputeUnit::DataPort::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 486 of file compute_unit.hh.

void ComputeUnit::DataPort::recvReqRetry ( )

protectedvirtual

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.

Currently Ruby can return false due to conflicts for the particular cache block or address. Thus other requests should be allowed to pass and the data port should expect multiple retries.

Implements MasterPort.

Definition at line 686 of file compute_unit.cc.

References DPRINTF, Request::getPaddr(), ArmISA::i, ArmISA::len, M5_VAR_USED, and Packet::req.