Simple physical register file class. More...

#include <regfile.hh>

Public Types
using	IdRange = std::pair< PhysIds::iterator, PhysIds::iterator >

Public Member Functions
	PhysRegFile (unsigned _numPhysicalIntRegs, unsigned _numPhysicalFloatRegs, unsigned _numPhysicalVecRegs, unsigned _numPhysicalVecPredRegs, unsigned _numPhysicalCCRegs, VecMode vmode)
	Constructs a physical register file with the specified amount of integer and floating point registers. More...

	~PhysRegFile ()
	Destructor to free resources. More...

void	initFreeList (UnifiedFreeList *freeList)
	Initialize the free list. More...

unsigned	numIntPhysRegs () const

unsigned	numFloatPhysRegs () const

unsigned	numVecPhysRegs () const

unsigned	numPredPhysRegs () const

unsigned	numVecElemPhysRegs () const

unsigned	numCCPhysRegs () const

unsigned	totalNumPhysRegs () const

PhysRegIdPtr	getMiscRegId (RegIndex reg_idx)
	Gets a misc register PhysRegIdPtr. More...

RegVal	readIntReg (PhysRegIdPtr phys_reg) const
	Reads an integer register. More...

RegVal	readFloatReg (PhysRegIdPtr phys_reg) const

const VecRegContainer &	readVecReg (PhysRegIdPtr phys_reg) const
	Reads a vector register. More...

VecRegContainer &	getWritableVecReg (PhysRegIdPtr phys_reg)
	Reads a vector register for modification. More...

template<typename VecElem , int LaneIdx>
VecLaneT< VecElem, true >	readVecLane (PhysRegIdPtr phys_reg) const
	Reads a vector register lane. More...

template<typename VecElem >
VecLaneT< VecElem, true >	readVecLane (PhysRegIdPtr phys_reg) const
	Reads a vector register lane. More...

template<typename LD >
void	setVecLane (PhysRegIdPtr phys_reg, const LD &val)
	Get a vector register lane for modification. More...

const VecElem &	readVecElem (PhysRegIdPtr phys_reg) const
	Reads a vector element. More...

const VecPredRegContainer &	readVecPredReg (PhysRegIdPtr phys_reg) const
	Reads a predicate register. More...

VecPredRegContainer &	getWritableVecPredReg (PhysRegIdPtr phys_reg)

RegVal	readCCReg (PhysRegIdPtr phys_reg)
	Reads a condition-code register. More...

void	setIntReg (PhysRegIdPtr phys_reg, RegVal val)
	Sets an integer register to the given value. More...

void	setFloatReg (PhysRegIdPtr phys_reg, RegVal val)

void	setVecReg (PhysRegIdPtr phys_reg, const VecRegContainer &val)
	Sets a vector register to the given value. More...

void	setVecElem (PhysRegIdPtr phys_reg, const VecElem val)
	Sets a vector register to the given value. More...

void	setVecPredReg (PhysRegIdPtr phys_reg, const VecPredRegContainer &val)
	Sets a predicate register to the given value. More...

void	setCCReg (PhysRegIdPtr phys_reg, RegVal val)
	Sets a condition-code register to the given value. More...

IdRange	getRegElemIds (PhysRegIdPtr reg)
	Get the PhysRegIds of the elems of a vector register. More...

IdRange	getRegIds (RegClass cls)
	Get the PhysRegIds of the elems of all vector registers. More...

PhysRegIdPtr	getTrueId (PhysRegIdPtr reg)
	Get the true physical register id. More...

Private Types
using	VecElem = TheISA::VecElem

using	VecRegContainer = TheISA::VecRegContainer

using	PhysIds = std::vector< PhysRegId >

using	VecMode = Enums::VecRegRenameMode

using	VecPredRegContainer = TheISA::VecPredRegContainer

Private Attributes
std::vector< RegVal >	intRegFile
	Integer register file. More...

std::vector< PhysRegId >	intRegIds

std::vector< RegVal >	floatRegFile
	Floating point register file. More...

std::vector< PhysRegId >	floatRegIds

std::vector< VecRegContainer >	vectorRegFile
	Vector register file. More...

std::vector< PhysRegId >	vecRegIds

std::vector< PhysRegId >	vecElemIds

std::vector< VecPredRegContainer >	vecPredRegFile
	Predicate register file. More...

std::vector< PhysRegId >	vecPredRegIds

std::vector< RegVal >	ccRegFile
	Condition-code register file. More...

std::vector< PhysRegId >	ccRegIds

std::vector< PhysRegId >	miscRegIds
	Misc Reg Ids. More...

unsigned	numPhysicalIntRegs
	Number of physical general purpose registers. More...

unsigned	numPhysicalFloatRegs
	Number of physical floating point registers. More...

unsigned	numPhysicalVecRegs
	Number of physical vector registers. More...

unsigned	numPhysicalVecElemRegs
	Number of physical vector element registers. More...

unsigned	numPhysicalVecPredRegs
	Number of physical predicate registers. More...

unsigned	numPhysicalCCRegs
	Number of physical CC registers. More...

unsigned	totalNumRegs
	Total number of physical registers. More...

VecMode	vecMode
	Mode in which vector registers are addressed. More...

Static Private Attributes
static constexpr auto	NumVecElemPerVecReg = TheISA::NumVecElemPerVecReg

Detailed Description

Simple physical register file class.

Definition at line 59 of file regfile.hh.

Member Typedef Documentation

◆ IdRange

using PhysRegFile::IdRange = std::pair<PhysIds::iterator, PhysIds::iterator>

Definition at line 70 of file regfile.hh.

◆ PhysIds

using PhysRegFile::PhysIds = std::vector<PhysRegId>

private

Definition at line 65 of file regfile.hh.

◆ VecElem

using PhysRegFile::VecElem = TheISA::VecElem

private

Definition at line 63 of file regfile.hh.

◆ VecMode

using PhysRegFile::VecMode = Enums::VecRegRenameMode

private

Definition at line 66 of file regfile.hh.

◆ VecPredRegContainer

using PhysRegFile::VecPredRegContainer = TheISA::VecPredRegContainer

private

Definition at line 67 of file regfile.hh.

◆ VecRegContainer

using PhysRegFile::VecRegContainer = TheISA::VecRegContainer

private

Definition at line 64 of file regfile.hh.

Constructor & Destructor Documentation

◆ PhysRegFile()

PhysRegFile::PhysRegFile	(	unsigned	_numPhysicalIntRegs,
		unsigned	_numPhysicalFloatRegs,
		unsigned	_numPhysicalVecRegs,
		unsigned	_numPhysicalVecPredRegs,
		unsigned	_numPhysicalCCRegs,
		VecMode	vmode
	)

Constructs a physical register file with the specified amount of integer and floating point registers.

Definition at line 48 of file regfile.cc.

References CCRegClass, ccRegIds, FloatRegClass, floatRegIds, IntRegClass, intRegIds, MiscRegClass, miscRegIds, ArmISA::NumCCRegs, ArmISA::NumMiscRegs, numPhysicalCCRegs, numPhysicalFloatRegs, numPhysicalIntRegs, numPhysicalVecPredRegs, numPhysicalVecRegs, NumVecElemPerVecReg, VecElemClass, vecElemIds, VecPredRegClass, vecPredRegIds, VecRegClass, vecRegIds, vectorRegFile, and warn.

◆ ~PhysRegFile()

PhysRegFile::~PhysRegFile ( )

inline

Destructor to free resources.

Definition at line 150 of file regfile.hh.

Member Function Documentation

◆ getMiscRegId()

PhysRegIdPtr PhysRegFile::getMiscRegId ( RegIndex reg_idx )

inline

Gets a misc register PhysRegIdPtr.

Definition at line 175 of file regfile.hh.

References miscRegIds.

Referenced by UnifiedRenameMap::lookup().

◆ getRegElemIds()

PhysRegFile::IdRange PhysRegFile::getRegElemIds ( PhysRegIdPtr reg )

Get the PhysRegIds of the elems of a vector register.

Auxiliary function to transition from Full vector mode to Elem mode.

Definition at line 184 of file regfile.cc.

References NumVecElemPerVecReg, panic_if, X86ISA::reg, and vecElemIds.

Referenced by UnifiedRenameMap::switchFreeList(), and UnifiedRenameMap::switchMode().

◆ getRegIds()

PhysRegFile::IdRange PhysRegFile::getRegIds ( RegClass cls )

Get the PhysRegIds of the elems of all vector registers.

Auxiliary function to transition from Full vector mode to Elem mode and to initialise the rename map.

Definition at line 195 of file regfile.cc.

References CCRegClass, ccRegIds, FloatRegClass, floatRegIds, IntRegClass, intRegIds, MiscRegClass, miscRegIds, VecElemClass, vecElemIds, VecPredRegClass, vecPredRegIds, VecRegClass, and vecRegIds.

Referenced by UnifiedRenameMap::switchFreeList(), and UnifiedRenameMap::switchMode().

◆ getTrueId()

PhysRegIdPtr PhysRegFile::getTrueId ( PhysRegIdPtr reg )

Get the true physical register id.

As many parts work with PhysRegIdPtr, we need to be able to produce the pointer out of just class and register idx.

Definition at line 220 of file regfile.cc.

References NumVecElemPerVecReg, panic_if, X86ISA::reg, VecElemClass, vecElemIds, VecRegClass, and vecRegIds.

Referenced by UnifiedRenameMap::switchMode().

◆ getWritableVecPredReg()

VecPredRegContainer& PhysRegFile::getWritableVecPredReg ( PhysRegIdPtr phys_reg )

inline

Definition at line 280 of file regfile.hh.

References readVecPredReg().

◆ getWritableVecReg()

VecRegContainer& PhysRegFile::getWritableVecReg ( PhysRegIdPtr phys_reg )

inline

Reads a vector register for modification.

Definition at line 218 of file regfile.hh.

References readVecReg().

◆ initFreeList()

void PhysRegFile::initFreeList ( UnifiedFreeList * freeList )

Initialize the free list.

Definition at line 131 of file regfile.cc.

References UnifiedFreeList::addRegs(), ccRegIds, floatRegIds, MipsISA::index, intRegIds, numPhysicalCCRegs, numPhysicalFloatRegs, numPhysicalIntRegs, numPhysicalVecPredRegs, numPhysicalVecRegs, NumVecElemPerVecReg, vecElemIds, vecMode, vecPredRegIds, and vecRegIds.

Referenced by UnifiedFreeList::UnifiedFreeList().

◆ numCCPhysRegs()

unsigned PhysRegFile::numCCPhysRegs ( ) const

inline

Returns: the number of condition-code physical registers.

Definition at line 169 of file regfile.hh.

References numPhysicalCCRegs.

◆ numFloatPhysRegs()

unsigned PhysRegFile::numFloatPhysRegs ( ) const

inline

Returns: the number of floating-point physical registers.

Definition at line 159 of file regfile.hh.

References numPhysicalFloatRegs.

◆ numIntPhysRegs()

unsigned PhysRegFile::numIntPhysRegs ( ) const

inline

Returns: the number of integer physical registers.

Definition at line 156 of file regfile.hh.

References numPhysicalIntRegs.

◆ numPredPhysRegs()

unsigned PhysRegFile::numPredPhysRegs ( ) const

inline

Returns: the number of predicate physical registers.

Definition at line 163 of file regfile.hh.

References numPhysicalVecPredRegs.

◆ numVecElemPhysRegs()

unsigned PhysRegFile::numVecElemPhysRegs ( ) const

inline

Returns: the number of vector physical registers.

Definition at line 166 of file regfile.hh.

References numPhysicalVecElemRegs.

Referenced by UnifiedRenameMap::switchFreeList().

◆ numVecPhysRegs()

unsigned PhysRegFile::numVecPhysRegs ( ) const

inline

Returns: the number of vector physical registers.

Definition at line 161 of file regfile.hh.

References numPhysicalVecRegs.

Referenced by UnifiedRenameMap::switchFreeList().

◆ readCCReg()

RegVal PhysRegFile::readCCReg ( PhysRegIdPtr phys_reg )

inline

Reads a condition-code register.

Definition at line 288 of file regfile.hh.

References ccRegFile, DPRINTF, PhysRegId::index(), and PhysRegId::isCCPhysReg().

◆ readFloatReg()

RegVal PhysRegFile::readFloatReg ( PhysRegIdPtr phys_reg ) const

inline

Definition at line 191 of file regfile.hh.

References DPRINTF, floatRegFile, PhysRegId::index(), and PhysRegId::isFloatPhysReg().

◆ readIntReg()

RegVal PhysRegFile::readIntReg ( PhysRegIdPtr phys_reg ) const

inline

Reads an integer register.

Definition at line 181 of file regfile.hh.

References DPRINTF, PhysRegId::index(), intRegFile, and PhysRegId::isIntPhysReg().

◆ readVecElem()

const VecElem& PhysRegFile::readVecElem ( PhysRegIdPtr phys_reg ) const

inline

Reads a vector element.

Definition at line 256 of file regfile.hh.

References DPRINTF, PhysRegId::elemIndex(), PhysRegId::index(), PhysRegId::isVectorPhysElem(), X86ISA::val, and vectorRegFile.

Referenced by UnifiedRenameMap::switchMode().

◆ readVecLane() [1/2]

template<typename VecElem , int LaneIdx>

VecLaneT<VecElem, true> PhysRegFile::readVecLane ( PhysRegIdPtr phys_reg ) const

inline

Reads a vector register lane.

Definition at line 227 of file regfile.hh.

References VecRegContainer< SIZE >::laneView(), and readVecReg().

Referenced by FullO3CPU< O3CPUImpl >::readVecLane().

◆ readVecLane() [2/2]

template<typename VecElem >

VecLaneT<VecElem, true> PhysRegFile::readVecLane ( PhysRegIdPtr phys_reg ) const

inline

Reads a vector register lane.

Definition at line 235 of file regfile.hh.

References PhysRegId::elemIndex(), VecRegContainer< SIZE >::laneView(), and readVecReg().

◆ readVecPredReg()

const VecPredRegContainer& PhysRegFile::readVecPredReg ( PhysRegIdPtr phys_reg ) const

inline

Reads a predicate register.

Definition at line 269 of file regfile.hh.

References DPRINTF, PhysRegId::index(), PhysRegId::isVecPredPhysReg(), and vecPredRegFile.

Referenced by getWritableVecPredReg().

◆ readVecReg()

const VecRegContainer& PhysRegFile::readVecReg ( PhysRegIdPtr phys_reg ) const

inline

Reads a vector register.

Definition at line 205 of file regfile.hh.

References DPRINTF, PhysRegId::index(), PhysRegId::isVectorPhysReg(), and vectorRegFile.

Referenced by getWritableVecReg(), and readVecLane().

◆ setCCReg()

void PhysRegFile::setCCReg	(	PhysRegIdPtr	phys_reg,
		RegVal	val
	)

inline

Sets a condition-code register to the given value.

Definition at line 362 of file regfile.hh.

References ccRegFile, DPRINTF, PhysRegId::index(), PhysRegId::isCCPhysReg(), and X86ISA::val.

◆ setFloatReg()

void PhysRegFile::setFloatReg	(	PhysRegIdPtr	phys_reg,
		RegVal	val
	)

inline

Definition at line 313 of file regfile.hh.

References DPRINTF, floatRegFile, PhysRegId::index(), PhysRegId::isFloatPhysReg(), PhysRegId::isZeroReg(), and X86ISA::val.

◆ setIntReg()

void PhysRegFile::setIntReg	(	PhysRegIdPtr	phys_reg,
		RegVal	val
	)

inline

Sets an integer register to the given value.

Definition at line 301 of file regfile.hh.

References DPRINTF, PhysRegId::index(), intRegFile, PhysRegId::isIntPhysReg(), PhysRegId::isZeroReg(), and X86ISA::val.

◆ setVecElem()

void PhysRegFile::setVecElem	(	PhysRegIdPtr	phys_reg,
		const VecElem	val
	)

inline

Sets a vector register to the given value.

Definition at line 338 of file regfile.hh.

References DPRINTF, PhysRegId::elemIndex(), PhysRegId::index(), PhysRegId::isVectorPhysElem(), X86ISA::val, and vectorRegFile.

◆ setVecLane()

template<typename LD >

void PhysRegFile::setVecLane	(	PhysRegIdPtr	phys_reg,
		const LD &	val
	)

inline

Get a vector register lane for modification.

Definition at line 243 of file regfile.hh.

References DPRINTF, PhysRegId::elemIndex(), PhysRegId::index(), PhysRegId::isVectorPhysReg(), X86ISA::val, and vectorRegFile.

Referenced by FullO3CPU< O3CPUImpl >::setVecLane().

◆ setVecPredReg()

void PhysRegFile::setVecPredReg	(	PhysRegIdPtr	phys_reg,
		const VecPredRegContainer &	val
	)

inline

Sets a predicate register to the given value.

Definition at line 350 of file regfile.hh.

References DPRINTF, PhysRegId::index(), PhysRegId::isVecPredPhysReg(), X86ISA::val, and vecPredRegFile.

◆ setVecReg()

void PhysRegFile::setVecReg	(	PhysRegIdPtr	phys_reg,
		const VecRegContainer &	val
	)

inline

Sets a vector register to the given value.

Definition at line 326 of file regfile.hh.

References DPRINTF, PhysRegId::index(), PhysRegId::isVectorPhysReg(), X86ISA::val, and vectorRegFile.

Referenced by UnifiedRenameMap::switchMode().

◆ totalNumPhysRegs()

unsigned PhysRegFile::totalNumPhysRegs ( ) const

inline

Returns: the total number of physical registers.

Definition at line 172 of file regfile.hh.

References totalNumRegs.

Member Data Documentation

◆ ccRegFile

std::vector<RegVal> PhysRegFile::ccRegFile

private

Condition-code register file.

Definition at line 92 of file regfile.hh.

Referenced by readCCReg(), and setCCReg().

◆ ccRegIds

std::vector<PhysRegId> PhysRegFile::ccRegIds

private

Definition at line 93 of file regfile.hh.

Referenced by getRegIds(), initFreeList(), and PhysRegFile().

◆ floatRegFile

std::vector<RegVal> PhysRegFile::floatRegFile

private

Floating point register file.

Definition at line 79 of file regfile.hh.

Referenced by readFloatReg(), and setFloatReg().

◆ floatRegIds

std::vector<PhysRegId> PhysRegFile::floatRegIds

private

Definition at line 80 of file regfile.hh.

Referenced by getRegIds(), initFreeList(), and PhysRegFile().

◆ intRegFile

std::vector<RegVal> PhysRegFile::intRegFile

private

Integer register file.

Definition at line 75 of file regfile.hh.

Referenced by readIntReg(), and setIntReg().

◆ intRegIds

std::vector<PhysRegId> PhysRegFile::intRegIds

private

Definition at line 76 of file regfile.hh.

Referenced by getRegIds(), initFreeList(), and PhysRegFile().

◆ miscRegIds

std::vector<PhysRegId> PhysRegFile::miscRegIds

private

Misc Reg Ids.

Definition at line 96 of file regfile.hh.

Referenced by getMiscRegId(), getRegIds(), and PhysRegFile().

◆ numPhysicalCCRegs

unsigned PhysRegFile::numPhysicalCCRegs

private

Number of physical CC registers.

Definition at line 126 of file regfile.hh.

Referenced by initFreeList(), numCCPhysRegs(), and PhysRegFile().

◆ numPhysicalFloatRegs

unsigned PhysRegFile::numPhysicalFloatRegs

private

Number of physical floating point registers.

Definition at line 106 of file regfile.hh.

Referenced by initFreeList(), numFloatPhysRegs(), and PhysRegFile().

◆ numPhysicalIntRegs

unsigned PhysRegFile::numPhysicalIntRegs

private

Number of physical general purpose registers.

Definition at line 101 of file regfile.hh.

Referenced by initFreeList(), numIntPhysRegs(), and PhysRegFile().

◆ numPhysicalVecElemRegs

unsigned PhysRegFile::numPhysicalVecElemRegs

private

Number of physical vector element registers.

Definition at line 116 of file regfile.hh.

Referenced by numVecElemPhysRegs().

◆ numPhysicalVecPredRegs

unsigned PhysRegFile::numPhysicalVecPredRegs

private

Number of physical predicate registers.

Definition at line 121 of file regfile.hh.

Referenced by initFreeList(), numPredPhysRegs(), and PhysRegFile().

◆ numPhysicalVecRegs

unsigned PhysRegFile::numPhysicalVecRegs

private

Number of physical vector registers.

Definition at line 111 of file regfile.hh.

Referenced by initFreeList(), numVecPhysRegs(), and PhysRegFile().

◆ NumVecElemPerVecReg

constexpr auto PhysRegFile::NumVecElemPerVecReg = TheISA::NumVecElemPerVecReg

staticconstexprprivate

Definition at line 72 of file regfile.hh.

Referenced by getRegElemIds(), getTrueId(), initFreeList(), and PhysRegFile().

◆ totalNumRegs

unsigned PhysRegFile::totalNumRegs

private

Total number of physical registers.

Definition at line 129 of file regfile.hh.

Referenced by totalNumPhysRegs().

◆ vecElemIds

std::vector<PhysRegId> PhysRegFile::vecElemIds

private

Definition at line 85 of file regfile.hh.

Referenced by getRegElemIds(), getRegIds(), getTrueId(), initFreeList(), and PhysRegFile().

◆ vecMode

VecMode PhysRegFile::vecMode

private

Mode in which vector registers are addressed.

Definition at line 132 of file regfile.hh.

Referenced by initFreeList().

◆ vecPredRegFile

std::vector<VecPredRegContainer> PhysRegFile::vecPredRegFile

private

Predicate register file.

Definition at line 88 of file regfile.hh.

Referenced by readVecPredReg(), and setVecPredReg().

◆ vecPredRegIds

std::vector<PhysRegId> PhysRegFile::vecPredRegIds

private

Definition at line 89 of file regfile.hh.

Referenced by getRegIds(), initFreeList(), and PhysRegFile().

◆ vecRegIds

std::vector<PhysRegId> PhysRegFile::vecRegIds

private

Definition at line 84 of file regfile.hh.

Referenced by getRegIds(), getTrueId(), initFreeList(), and PhysRegFile().

◆ vectorRegFile

std::vector<VecRegContainer> PhysRegFile::vectorRegFile

private

Vector register file.

Definition at line 83 of file regfile.hh.

Referenced by PhysRegFile(), readVecElem(), readVecReg(), setVecElem(), setVecLane(), and setVecReg().

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

cpu/o3/regfile.hh
cpu/o3/regfile.cc

Public Types

Public Member Functions

Private Types

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ IdRange

◆ PhysIds

◆ VecElem

◆ VecMode

◆ VecPredRegContainer

◆ VecRegContainer

Constructor & Destructor Documentation

◆ PhysRegFile()

◆ ~PhysRegFile()

Member Function Documentation

◆ getMiscRegId()

◆ getRegElemIds()

◆ getRegIds()

◆ getTrueId()

◆ getWritableVecPredReg()

◆ getWritableVecReg()

◆ initFreeList()

◆ numCCPhysRegs()

◆ numFloatPhysRegs()

◆ numIntPhysRegs()

◆ numPredPhysRegs()

◆ numVecElemPhysRegs()

◆ numVecPhysRegs()

◆ readCCReg()

◆ readFloatReg()

◆ readIntReg()

◆ readVecElem()

◆ readVecLane() [1/2]

◆ readVecLane() [2/2]

◆ readVecPredReg()

◆ readVecReg()

◆ setCCReg()

◆ setFloatReg()

◆ setIntReg()

◆ setVecElem()

◆ setVecLane()

◆ setVecPredReg()

◆ setVecReg()

◆ totalNumPhysRegs()

Member Data Documentation

◆ ccRegFile

◆ ccRegIds

◆ floatRegFile

◆ floatRegIds

◆ intRegFile

◆ intRegIds

◆ miscRegIds

◆ numPhysicalCCRegs

◆ numPhysicalFloatRegs

◆ numPhysicalIntRegs

◆ numPhysicalVecElemRegs

◆ numPhysicalVecPredRegs

◆ numPhysicalVecRegs

◆ NumVecElemPerVecReg

◆ totalNumRegs

◆ vecElemIds

◆ vecMode

◆ vecPredRegFile

◆ vecPredRegIds

◆ vecRegIds

◆ vectorRegFile