#include <compute_unit.hh>

Inheritance diagram for ComputeUnit::DataPort:

Classes
struct	SenderState

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

void	processMemReqEvent (PacketPtr pkt)

EventFunctionWrapper *	createMemReqEvent (PacketPtr pkt)

void	processMemRespEvent (PacketPtr pkt)

EventFunctionWrapper *	createMemRespEvent (PacketPtr pkt)

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

virtual	~MasterPort ()

void	bind (Port &peer) override
	Bind this master port to a slave port. More...

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

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...

Tick	sendAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor)
	Send an atomic request packet like above, but also request a backdoor to the data being accessed. More...

void	sendFunctional (PacketPtr pkt) const
	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	tryTiming (PacketPtr pkt) const
	Check if the slave can handle a timing request. 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...

Public Member Functions inherited from Port
virtual	~Port ()
	Virtual destructor due to inheritance. More...

Port &	getPeer ()
	Return a reference to this port's peer. More...

const std::string	name () const
	Return port name (for DPRINTF). More...

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

bool	isConnected () const
	Is this port currently connected to a peer? More...

void	takeOverFrom (Port *old)
	A utility function to make it easier to swap out ports. 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 peer. 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 peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful. More...

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

Protected Member Functions inherited from MasterPort
Tick	recvAtomicSnoop (PacketPtr pkt) override
	Default implementations. More...

void	recvFunctionalSnoop (PacketPtr pkt) override
	Receive a functional snoop request packet from the peer. More...

void	recvTimingSnoopReq (PacketPtr pkt) override
	Receive a timing snoop request from the peer. More...

void	recvRetrySnoopResp () override
	Called by the peer if sendTimingSnoopResp was called on this protocol (causing recvTimingSnoopResp to be called on the peer) and was unsuccessful. More...

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

Protected Member Functions inherited from AtomicRequestProtocol
Tick	send (AtomicResponseProtocol *peer, 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...

Tick	sendBackdoor (AtomicResponseProtocol *peer, PacketPtr pkt, MemBackdoorPtr &backdoor)
	Send an atomic request packet like above, but also request a backdoor to the data being accessed. More...

Protected Member Functions inherited from TimingRequestProtocol
bool	sendReq (TimingResponseProtocol *peer, PacketPtr pkt)
	Attempt to send a timing request to the peer by calling its corresponding receive function. More...

bool	trySend (TimingResponseProtocol *peer, PacketPtr pkt) const
	Check if the peer can handle a timing request. More...

bool	sendSnoopResp (TimingResponseProtocol *peer, PacketPtr pkt)
	Attempt to send a timing snoop response packet to it's peer by calling its corresponding receive function. More...

void	sendRetryResp (TimingResponseProtocol *peer)
	Send a retry to the peer that previously attempted a sendTimingResp to this protocol and failed. More...

Protected Member Functions inherited from FunctionalRequestProtocol
void	send (FunctionalResponseProtocol *peer, PacketPtr pkt) const
	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...

Protected Attributes
ComputeUnit *	computeUnit

int	index

Protected Attributes inherited from MasterPort
SimObject &	owner

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...

Port *	_peer
	A pointer to this port's peer. More...

bool	_connected
	Whether this port is currently connected to a peer port. More...

Detailed Description

Data access Port.

Definition at line 422 of file compute_unit.hh.

Constructor & Destructor Documentation

◆ DataPort()

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

inline

Definition at line 425 of file compute_unit.hh.

Member Function Documentation

◆ createMemReqEvent()

EventFunctionWrapper * ComputeUnit::DataPort::createMemReqEvent ( PacketPtr pkt )

Definition at line 1238 of file compute_unit.cc.

◆ createMemRespEvent()

EventFunctionWrapper * ComputeUnit::DataPort::createMemRespEvent ( PacketPtr pkt )

Definition at line 1246 of file compute_unit.cc.

◆ getDeviceAddressRanges()

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

inlineprotectedvirtual

Definition at line 463 of file compute_unit.hh.

◆ processMemReqEvent()

void ComputeUnit::DataPort::processMemReqEvent ( PacketPtr pkt )

Definition at line 1254 of file compute_unit.cc.

References ComputeUnit::DataPort::SenderState::_gpuDynInst, DPRINTF, MipsISA::index, M5_VAR_USED, Packet::req, safe_cast(), and Packet::senderState.

◆ processMemRespEvent()

void ComputeUnit::DataPort::processMemRespEvent ( PacketPtr pkt )

Definition at line 976 of file compute_unit.cc.

References ComputeUnit::DataPort::SenderState::_gpuDynInst, Packet::cmd, ComputeUnit::ComputeUnit(), ComputeUnit::cu_id, DPRINTF, ComputeUnit::globalMemoryPipe, GlobalMemPipeline::handleResponse(), MipsISA::index, Packet::isRead(), Packet::isWrite(), MAX_REGS_FOR_NON_VEC_MEM_INST, MemCmd::MemFenceResp, Packet::req, safe_cast(), Packet::senderState, and ULL.

◆ recvAtomic()

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

inlineprotectedvirtual

Definition at line 457 of file compute_unit.hh.

◆ recvFunctional()

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

inlineprotectedvirtual

Definition at line 458 of file compute_unit.hh.

◆ recvRangeChange()

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 459 of file compute_unit.hh.

◆ recvReqRetry()

void ComputeUnit::DataPort::recvReqRetry ( )

protectedvirtual

Called by the peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful.

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 TimingRequestProtocol.

Definition at line 685 of file compute_unit.cc.

References DPRINTF, ArmISA::i, ArmISA::len, M5_VAR_USED, and Packet::req.

◆ recvTimingResp()

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

protectedvirtual

Receive a timing response from the peer.

Implements TimingRequestProtocol.

Definition at line 621 of file compute_unit.cc.

References ComputeUnit::DataPort::SenderState::_gpuDynInst, Wavefront::barrierCnt, curTick(), DPRINTF, MipsISA::index, Wavefront::kernId, Wavefront::outstandingReqs, ComputeUnit::DataPort::SenderState::port_index, Packet::req, Wavefront::S_RETURNING, Wavefront::S_STOPPED, safe_cast(), Packet::senderState, Wavefront::simdId, Wavefront::status, MipsISA::w, Wavefront::wfDynId, and Wavefront::wfSlotId.

Member Data Documentation

◆ computeUnit

ComputeUnit* ComputeUnit::DataPort::computeUnit

protected

Definition at line 453 of file compute_unit.hh.

◆ index

int ComputeUnit::DataPort::index

protected

Definition at line 454 of file compute_unit.hh.

◆ retries

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

Definition at line 450 of file compute_unit.hh.

◆ snoopRangeSent

bool ComputeUnit::DataPort::snoopRangeSent

Definition at line 429 of file compute_unit.hh.

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

◆ DataPort()

Member Function Documentation

◆ createMemReqEvent()

◆ createMemRespEvent()

◆ getDeviceAddressRanges()

◆ processMemReqEvent()

◆ processMemRespEvent()

◆ recvAtomic()

◆ recvFunctional()

◆ recvRangeChange()

◆ recvReqRetry()

◆ recvTimingResp()

Member Data Documentation

◆ computeUnit

◆ index

◆ retries

◆ snoopRangeSent