The struct GraphNode stores an instruction in the trace file. More...

Public Types
typedef std::array< NodeSeqNum, maxRobDep >	RobDepArray
	Typedef for the array containing the ROB dependencies. More...

typedef std::array< NodeSeqNum, TheISA::MaxInstSrcRegs >	RegDepArray
	Typedef for the array containing the register dependencies. More...

Public Member Functions
bool	isLoad () const
	Is the node a load. More...

bool	isStore () const
	Is the node a store. More...

bool	isComp () const
	Is the node a compute (non load/store) node. More...

void	clearRegDep ()
	Initialize register dependency array to all zeroes. More...

void	clearRobDep ()
	Initialize register dependency array to all zeroes. More...

bool	removeRegDep (NodeSeqNum reg_dep)
	Remove completed instruction from register dependency array. More...

bool	removeRobDep (NodeSeqNum rob_dep)
	Remove completed instruction from order dependency array. More...

bool	removeDepOnInst (NodeSeqNum done_seq_num)
	Check for all dependencies on completed inst. More...

bool	isStrictlyOrdered () const
	Return true if node has a request which is strictly ordered. More...

void	writeElementAsTrace () const
	Write out element in trace-compatible format using debug flag TraceCPUData. More...

std::string	typeToStr () const
	Return string specifying the type of the node. More...

Public Attributes
NodeSeqNum	seqNum
	Instruction sequence number. More...

NodeRobNum	robNum
	ROB occupancy number. More...

RecordType	type
	Type of the node corresponding to the instruction modelled by it. More...

Addr	physAddr
	The address for the request if any. More...

Addr	virtAddr
	The virtual address for the request if any. More...

uint32_t	size
	Size of request if any. More...

Request::Flags	flags
	Request flags if any. More...

Addr	pc
	Instruction PC. More...

RobDepArray	robDep
	Array of order dependencies. More...

uint8_t	numRobDep
	Number of order dependencies. More...

uint64_t	compDelay
	Computational delay. More...

RegDepArray	regDep
	Array of register dependencies (incoming) if any. More...

uint8_t	numRegDep
	Number of register dependencies. More...

std::vector< GraphNode * >	dependents
	A vector of nodes dependent (outgoing) on this node. More...

Static Public Attributes
static const uint8_t	maxRobDep = 2
	The maximum no. More...

Detailed Description

The struct GraphNode stores an instruction in the trace file.

The format of the trace file favours constructing a dependency graph of the execution and this struct is used to encapsulate the request data as well as pointers to its dependent GraphNodes.

Definition at line 579 of file trace_cpu.hh.

Member Typedef Documentation

◆ RegDepArray

typedef std::array<NodeSeqNum, TheISA::MaxInstSrcRegs> TraceCPU::ElasticDataGen::GraphNode::RegDepArray

Typedef for the array containing the register dependencies.

Definition at line 593 of file trace_cpu.hh.

◆ RobDepArray

typedef std::array<NodeSeqNum, maxRobDep> TraceCPU::ElasticDataGen::GraphNode::RobDepArray

Typedef for the array containing the ROB dependencies.

Definition at line 590 of file trace_cpu.hh.

Member Function Documentation

◆ clearRegDep()

void TraceCPU::ElasticDataGen::GraphNode::clearRegDep ( )

Initialize register dependency array to all zeroes.

Definition at line 1321 of file trace_cpu.cc.

Referenced by TraceCPU::ElasticDataGen::InputStream::read().

◆ clearRobDep()

void TraceCPU::ElasticDataGen::GraphNode::clearRobDep ( )

Initialize register dependency array to all zeroes.

Definition at line 1329 of file trace_cpu.cc.

Referenced by TraceCPU::ElasticDataGen::InputStream::read().

◆ isComp()

bool TraceCPU::ElasticDataGen::GraphNode::isComp ( ) const

inline

Is the node a compute (non load/store) node.

Definition at line 651 of file trace_cpu.hh.

References type.

◆ isLoad()

bool TraceCPU::ElasticDataGen::GraphNode::isLoad ( ) const

inline

Is the node a load.

Definition at line 645 of file trace_cpu.hh.

References type.

Referenced by TraceCPU::ElasticDataGen::execute(), TraceCPU::ElasticDataGen::executeMemReq(), TraceCPU::ElasticDataGen::HardwareResource::isAvailable(), TraceCPU::ElasticDataGen::HardwareResource::occupy(), and TraceCPU::ElasticDataGen::HardwareResource::release().

◆ isStore()

bool TraceCPU::ElasticDataGen::GraphNode::isStore ( ) const

inline

Is the node a store.

Definition at line 648 of file trace_cpu.hh.

References type.

Referenced by TraceCPU::ElasticDataGen::execute(), TraceCPU::ElasticDataGen::HardwareResource::isAvailable(), TraceCPU::ElasticDataGen::HardwareResource::occupy(), and TraceCPU::ElasticDataGen::HardwareResource::release().

◆ isStrictlyOrdered()

bool TraceCPU::ElasticDataGen::GraphNode::isStrictlyOrdered ( ) const

inline

Return true if node has a request which is strictly ordered.

Definition at line 669 of file trace_cpu.hh.

References flags, Flags< T >::isSet(), and Request::STRICT_ORDER.

Referenced by TraceCPU::ElasticDataGen::execute(), TraceCPU::ElasticDataGen::executeMemReq(), and TraceCPU::ElasticDataGen::HardwareResource::release().

◆ removeDepOnInst()

bool TraceCPU::ElasticDataGen::GraphNode::removeDepOnInst ( NodeSeqNum done_seq_num )

Check for all dependencies on completed inst.

Definition at line 1337 of file trace_cpu.cc.

◆ removeRegDep()

bool TraceCPU::ElasticDataGen::GraphNode::removeRegDep ( NodeSeqNum reg_dep )

Remove completed instruction from register dependency array.

Definition at line 1285 of file trace_cpu.cc.

References DPRINTFR.

◆ removeRobDep()

bool TraceCPU::ElasticDataGen::GraphNode::removeRobDep ( NodeSeqNum rob_dep )

Remove completed instruction from order dependency array.

Definition at line 1304 of file trace_cpu.cc.

References DPRINTFR.

◆ typeToStr()

std::string TraceCPU::ElasticDataGen::GraphNode::typeToStr ( ) const

Return string specifying the type of the node.

Definition at line 1385 of file trace_cpu.cc.

References type.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue().

◆ writeElementAsTrace()

void TraceCPU::ElasticDataGen::GraphNode::writeElementAsTrace ( ) const

Write out element in trace-compatible format using debug flag TraceCPUData.

Definition at line 1352 of file trace_cpu.cc.

References DPRINTFR, ArmISA::i, and X86ISA::physAddr.

Member Data Documentation

◆ compDelay

uint64_t TraceCPU::ElasticDataGen::GraphNode::compDelay

Computational delay.

Definition at line 626 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ dependents

std::vector<GraphNode *> TraceCPU::ElasticDataGen::GraphNode::dependents

A vector of nodes dependent (outgoing) on this node.

A sequential container is chosen because when dependents become free, they attempt to issue in program order.

Definition at line 642 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::completeMemAccess(), and TraceCPU::ElasticDataGen::execute().

◆ flags

Request::Flags TraceCPU::ElasticDataGen::GraphNode::flags

Request flags if any.

Definition at line 614 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::executeMemReq(), isStrictlyOrdered(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ maxRobDep

const uint8_t TraceCPU::ElasticDataGen::GraphNode::maxRobDep = 2

static

The maximum no.

of ROB dependencies. There can be at most 2 order dependencies which could exist for a store. For a load and comp node there can be at most one order dependency.

Definition at line 587 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::InputStream::read().

◆ numRegDep

uint8_t TraceCPU::ElasticDataGen::GraphNode::numRegDep

Number of register dependencies.

Definition at line 635 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue(), TraceCPU::ElasticDataGen::InputStream::read(), and TraceCPU::ElasticDataGen::readNextWindow().

◆ numRobDep

uint8_t TraceCPU::ElasticDataGen::GraphNode::numRobDep

Number of order dependencies.

Definition at line 623 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue(), TraceCPU::ElasticDataGen::InputStream::read(), and TraceCPU::ElasticDataGen::readNextWindow().

◆ pc

Addr TraceCPU::ElasticDataGen::GraphNode::pc

Instruction PC.

Definition at line 617 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::executeMemReq(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ physAddr

Addr TraceCPU::ElasticDataGen::GraphNode::physAddr

The address for the request if any.

Definition at line 605 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::executeMemReq(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ regDep

RegDepArray TraceCPU::ElasticDataGen::GraphNode::regDep

Array of register dependencies (incoming) if any.

Maximum number of source registers used to set maximum size of the array

Definition at line 632 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::InputStream::read(), and TraceCPU::ElasticDataGen::readNextWindow().

◆ robDep

RobDepArray TraceCPU::ElasticDataGen::GraphNode::robDep

Array of order dependencies.

Definition at line 620 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::InputStream::read(), and TraceCPU::ElasticDataGen::readNextWindow().

◆ robNum

NodeRobNum TraceCPU::ElasticDataGen::GraphNode::robNum

ROB occupancy number.

Definition at line 599 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue(), TraceCPU::ElasticDataGen::completeMemAccess(), TraceCPU::ElasticDataGen::execute(), TraceCPU::ElasticDataGen::HardwareResource::isAvailable(), TraceCPU::ElasticDataGen::HardwareResource::occupy(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ seqNum

NodeSeqNum TraceCPU::ElasticDataGen::GraphNode::seqNum

Instruction sequence number.

Definition at line 596 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::checkAndIssue(), TraceCPU::ElasticDataGen::completeMemAccess(), TraceCPU::ElasticDataGen::execute(), TraceCPU::ElasticDataGen::executeMemReq(), TraceCPU::ElasticDataGen::HardwareResource::isAvailable(), TraceCPU::ElasticDataGen::HardwareResource::occupy(), TraceCPU::ElasticDataGen::InputStream::read(), TraceCPU::ElasticDataGen::readNextWindow(), and TraceCPU::ElasticDataGen::HardwareResource::release().

◆ size

uint32_t TraceCPU::ElasticDataGen::GraphNode::size

Size of request if any.

Definition at line 611 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::executeMemReq(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ type

RecordType TraceCPU::ElasticDataGen::GraphNode::type

Type of the node corresponding to the instruction modelled by it.

Definition at line 602 of file trace_cpu.hh.

Referenced by isComp(), isLoad(), isStore(), and TraceCPU::ElasticDataGen::InputStream::read().

◆ virtAddr

Addr TraceCPU::ElasticDataGen::GraphNode::virtAddr

The virtual address for the request if any.

Definition at line 608 of file trace_cpu.hh.

Referenced by TraceCPU::ElasticDataGen::executeMemReq(), and TraceCPU::ElasticDataGen::InputStream::read().

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

cpu/trace/trace_cpu.hh
cpu/trace/trace_cpu.cc

Public Types

Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Member Typedef Documentation

◆ RegDepArray

◆ RobDepArray

Member Function Documentation

◆ clearRegDep()

◆ clearRobDep()

◆ isComp()

◆ isLoad()

◆ isStore()

◆ isStrictlyOrdered()

◆ removeDepOnInst()

◆ removeRegDep()

◆ removeRobDep()

◆ typeToStr()

◆ writeElementAsTrace()

Member Data Documentation

◆ compDelay

◆ dependents

◆ flags

◆ maxRobDep

◆ numRegDep

◆ numRobDep

◆ pc

◆ physAddr

◆ regDep

◆ robDep

◆ robNum

◆ seqNum

◆ size

◆ type

◆ virtAddr