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, const BaseISA::RegClasses &classes)
	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	totalNumPhysRegs () const

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

RegVal	getReg (PhysRegIdPtr phys_reg) const

void	getReg (PhysRegIdPtr phys_reg, void *val) const

void *	getWritableReg (PhysRegIdPtr phys_reg)

void	setReg (PhysRegIdPtr phys_reg, RegVal val)

void	setReg (PhysRegIdPtr phys_reg, const void *val)

IdRange	getRegIds (RegClassType 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	PhysIds = std::vector< PhysRegId >

Private Attributes
RegFile	intRegFile
	Integer register file. More...

std::vector< PhysRegId >	intRegIds

RegFile	floatRegFile
	Floating point register file. More...

std::vector< PhysRegId >	floatRegIds

RegFile	vectorRegFile
	Vector register file. More...

std::vector< PhysRegId >	vecRegIds

RegFile	vectorElemRegFile
	Vector element register file. More...

std::vector< PhysRegId >	vecElemIds

RegFile	vecPredRegFile
	Predicate register file. More...

std::vector< PhysRegId >	vecPredRegIds

RegFile	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...

Detailed Description

Simple physical register file class.

Definition at line 67 of file regfile.hh.

Member Typedef Documentation

◆ IdRange

using gem5::o3::PhysRegFile::IdRange = std::pair<PhysIds::iterator, PhysIds::iterator>

Definition at line 74 of file regfile.hh.

◆ PhysIds

using gem5::o3::PhysRegFile::PhysIds = std::vector<PhysRegId>

private

Definition at line 71 of file regfile.hh.

Constructor & Destructor Documentation

◆ PhysRegFile()

gem5::o3::PhysRegFile::PhysRegFile	(	unsigned	_numPhysicalIntRegs,
		unsigned	_numPhysicalFloatRegs,
		unsigned	_numPhysicalVecRegs,
		unsigned	_numPhysicalVecPredRegs,
		unsigned	_numPhysicalCCRegs,
		const BaseISA::RegClasses &	classes
	)

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

Definition at line 52 of file regfile.cc.

References gem5::CCRegClass, ccRegIds, gem5::FloatRegClass, floatRegIds, gem5::IntRegClass, intRegIds, gem5::MiscRegClass, miscRegIds, numPhysicalCCRegs, numPhysicalFloatRegs, numPhysicalIntRegs, numPhysicalVecElemRegs, numPhysicalVecPredRegs, numPhysicalVecRegs, gem5::VecElemClass, vecElemIds, gem5::VecPredRegClass, vecPredRegIds, gem5::VecRegClass, and vecRegIds.

◆ ~PhysRegFile()

gem5::o3::PhysRegFile::~PhysRegFile ( )

inline

Destructor to free resources.

Definition at line 151 of file regfile.hh.

Member Function Documentation

◆ getMiscRegId()

PhysRegIdPtr gem5::o3::PhysRegFile::getMiscRegId ( RegIndex reg_idx )

inline

Gets a misc register PhysRegIdPtr.

Definition at line 160 of file regfile.hh.

References miscRegIds.

Referenced by gem5::o3::UnifiedRenameMap::lookup().

◆ getReg() [1/2]

RegVal gem5::o3::PhysRegFile::getReg ( PhysRegIdPtr phys_reg ) const

inline

Definition at line 165 of file regfile.hh.

References gem5::CCRegClass, ccRegFile, gem5::PhysRegId::classValue(), DPRINTF, gem5::FloatRegClass, floatRegFile, gem5::PhysRegId::index(), gem5::IntRegClass, intRegFile, panic, gem5::RegFile::reg(), gem5::X86ISA::type, gem5::X86ISA::val, gem5::VecElemClass, and vectorElemRegFile.

Referenced by gem5::o3::CPU::getArchReg(), getReg(), and gem5::o3::CPU::getReg().

◆ getReg() [2/2]

void gem5::o3::PhysRegFile::getReg	(	PhysRegIdPtr	phys_reg,
		void *	val
	)		const

inline

◆ getRegIds()

PhysRegFile::IdRange gem5::o3::PhysRegFile::getRegIds ( RegClassType 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 172 of file regfile.cc.

References gem5::CCRegClass, ccRegIds, gem5::FloatRegClass, floatRegIds, gem5::IntRegClass, intRegIds, gem5::InvalidRegClass, gem5::MiscRegClass, miscRegIds, panic, gem5::VecElemClass, vecElemIds, gem5::VecPredRegClass, vecPredRegIds, gem5::VecRegClass, and vecRegIds.

◆ getTrueId()

PhysRegIdPtr gem5::o3::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 199 of file regfile.cc.

References panic_if, gem5::X86ISA::reg, gem5::VecElemClass, vecElemIds, gem5::VecRegClass, and vecRegIds.

◆ getWritableReg()

void* gem5::o3::PhysRegFile::getWritableReg ( PhysRegIdPtr phys_reg )

inline

Definition at line 232 of file regfile.hh.

References gem5::PhysRegId::classValue(), gem5::PhysRegId::index(), panic, gem5::RegFile::ptr(), gem5::X86ISA::type, gem5::VecPredRegClass, vecPredRegFile, gem5::VecRegClass, and vectorRegFile.

Referenced by gem5::o3::CPU::getWritableArchReg(), and gem5::o3::CPU::getWritableReg().

◆ initFreeList()

void gem5::o3::PhysRegFile::initFreeList ( UnifiedFreeList * freeList )

Initialize the free list.

Definition at line 127 of file regfile.cc.

References gem5::o3::UnifiedFreeList::addRegs(), ccRegIds, floatRegIds, gem5::MipsISA::index, intRegIds, numPhysicalCCRegs, numPhysicalFloatRegs, numPhysicalIntRegs, numPhysicalVecElemRegs, numPhysicalVecPredRegs, numPhysicalVecRegs, vecElemIds, vecPredRegIds, and vecRegIds.

Referenced by gem5::o3::UnifiedFreeList::UnifiedFreeList().

◆ setReg() [1/2]

void gem5::o3::PhysRegFile::setReg	(	PhysRegIdPtr	phys_reg,
		const void *	val
	)

inline

◆ setReg() [2/2]

void gem5::o3::PhysRegFile::setReg	(	PhysRegIdPtr	phys_reg,
		RegVal	val
	)

inline

Definition at line 248 of file regfile.hh.

References gem5::CCRegClass, ccRegFile, gem5::PhysRegId::classValue(), DPRINTF, gem5::FloatRegClass, floatRegFile, gem5::PhysRegId::index(), gem5::IntRegClass, intRegFile, gem5::InvalidRegClass, panic, gem5::RegFile::reg(), gem5::X86ISA::type, gem5::X86ISA::val, gem5::VecElemClass, and vectorElemRegFile.

Referenced by gem5::o3::CPU::setArchReg(), setReg(), and gem5::o3::CPU::setReg().

◆ totalNumPhysRegs()

unsigned gem5::o3::PhysRegFile::totalNumPhysRegs ( ) const

inline

Returns: the total number of physical registers.

Definition at line 157 of file regfile.hh.

References totalNumRegs.

Member Data Documentation

◆ ccRegFile

RegFile gem5::o3::PhysRegFile::ccRegFile

private

Condition-code register file.

Definition at line 97 of file regfile.hh.

Referenced by getReg(), and setReg().

◆ ccRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::ccRegIds

private

Definition at line 98 of file regfile.hh.

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

◆ floatRegFile

RegFile gem5::o3::PhysRegFile::floatRegFile

private

Floating point register file.

Definition at line 81 of file regfile.hh.

Referenced by getReg(), and setReg().

◆ floatRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::floatRegIds

private

Definition at line 82 of file regfile.hh.

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

◆ intRegFile

RegFile gem5::o3::PhysRegFile::intRegFile

private

Integer register file.

Definition at line 77 of file regfile.hh.

Referenced by getReg(), and setReg().

◆ intRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::intRegIds

private

Definition at line 78 of file regfile.hh.

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

◆ miscRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::miscRegIds

private

Misc Reg Ids.

Definition at line 101 of file regfile.hh.

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

◆ numPhysicalCCRegs

unsigned gem5::o3::PhysRegFile::numPhysicalCCRegs

private

Number of physical CC registers.

Definition at line 131 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ numPhysicalFloatRegs

unsigned gem5::o3::PhysRegFile::numPhysicalFloatRegs

private

Number of physical floating point registers.

Definition at line 111 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ numPhysicalIntRegs

unsigned gem5::o3::PhysRegFile::numPhysicalIntRegs

private

Number of physical general purpose registers.

Definition at line 106 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ numPhysicalVecElemRegs

unsigned gem5::o3::PhysRegFile::numPhysicalVecElemRegs

private

Number of physical vector element registers.

Definition at line 121 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ numPhysicalVecPredRegs

unsigned gem5::o3::PhysRegFile::numPhysicalVecPredRegs

private

Number of physical predicate registers.

Definition at line 126 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ numPhysicalVecRegs

unsigned gem5::o3::PhysRegFile::numPhysicalVecRegs

private

Number of physical vector registers.

Definition at line 116 of file regfile.hh.

Referenced by initFreeList(), and PhysRegFile().

◆ totalNumRegs

unsigned gem5::o3::PhysRegFile::totalNumRegs

private

Total number of physical registers.

Definition at line 134 of file regfile.hh.

Referenced by totalNumPhysRegs().

◆ vecElemIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::vecElemIds

private

Definition at line 90 of file regfile.hh.

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

◆ vecPredRegFile

RegFile gem5::o3::PhysRegFile::vecPredRegFile

private

Predicate register file.

Definition at line 93 of file regfile.hh.

Referenced by getReg(), getWritableReg(), and setReg().

◆ vecPredRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::vecPredRegIds

private

Definition at line 94 of file regfile.hh.

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

◆ vecRegIds

std::vector<PhysRegId> gem5::o3::PhysRegFile::vecRegIds

private

Definition at line 86 of file regfile.hh.

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

◆ vectorElemRegFile

RegFile gem5::o3::PhysRegFile::vectorElemRegFile

private

Vector element register file.

Definition at line 89 of file regfile.hh.

Referenced by getReg(), and setReg().

◆ vectorRegFile

RegFile gem5::o3::PhysRegFile::vectorRegFile

private

Vector register file.

Definition at line 85 of file regfile.hh.

Referenced by getReg(), getWritableReg(), and setReg().

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

Detailed Description

Member Typedef Documentation

◆ IdRange

◆ PhysIds

Constructor & Destructor Documentation

◆ PhysRegFile()

◆ ~PhysRegFile()

Member Function Documentation

◆ getMiscRegId()

◆ getReg() [1/2]

◆ getReg() [2/2]

◆ getRegIds()

◆ getTrueId()

◆ getWritableReg()

◆ initFreeList()

◆ setReg() [1/2]

◆ setReg() [2/2]

◆ totalNumPhysRegs()

Member Data Documentation

◆ ccRegFile

◆ ccRegIds

◆ floatRegFile

◆ floatRegIds

◆ intRegFile

◆ intRegIds

◆ miscRegIds

◆ numPhysicalCCRegs

◆ numPhysicalFloatRegs

◆ numPhysicalIntRegs

◆ numPhysicalVecElemRegs

◆ numPhysicalVecPredRegs

◆ numPhysicalVecRegs

◆ totalNumRegs

◆ vecElemIds

◆ vecPredRegFile

◆ vecPredRegIds

◆ vecRegIds

◆ vectorElemRegFile

◆ vectorRegFile