SMMUTLB Class Reference

#include <smmu_v3_caches.hh>

Inheritance diagram for SMMUTLB:

Classes
struct	Entry

Public Types
enum	AllocPolicy { ALLOC_ANY_WAY, ALLOC_ANY_BUT_LAST_WAY, ALLOC_LAST_WAY }

Public Member Functions
	SMMUTLB (unsigned numEntries, unsigned _associativity, const std::string &policy)
	SMMUTLB (const SMMUTLB &tlb)=delete
virtual	~SMMUTLB ()
const Entry *	lookup (uint32_t sid, uint32_t ssid, Addr va, bool updStats=true)
const Entry *	lookupAnyVA (uint32_t sid, uint32_t ssid, bool updStats=true)
void	store (const Entry &incoming, AllocPolicy alloc)
void	invalidateSSID (uint32_t sid, uint32_t ssid)
void	invalidateSID (uint32_t sid)
void	invalidateVA (Addr va, uint16_t asid, uint16_t vmid)
void	invalidateVAA (Addr va, uint16_t vmid)
void	invalidateASID (uint16_t asid, uint16_t vmid)
void	invalidateVMID (uint16_t vmid)
void	invalidateAll ()
Public Member Functions inherited from SMMUv3BaseCache
	SMMUv3BaseCache (const std::string &policy_name, uint32_t seed)
virtual	~SMMUv3BaseCache ()
virtual void	regStats (const std::string &name)

Private Types
typedef std::vector< Entry >	Set

Private Member Functions
size_t	pickSetIdx (uint32_t sid, uint32_t ssid) const
size_t	pickSetIdx (Addr va) const
size_t	pickEntryIdxToReplace (const Set &set, AllocPolicy alloc)

Private Attributes
std::vector< Set >	sets
size_t	associativity

Additional Inherited Members
Static Protected Member Functions inherited from SMMUv3BaseCache
static int	decodePolicyName (const std::string &policy_name)
Protected Attributes inherited from SMMUv3BaseCache
int	replacementPolicy
size_t	nextToReplace
Random	random
uint32_t	useStamp
Stats::Formula	averageLookups
Stats::Scalar	totalLookups
Stats::Formula	averageMisses
Stats::Scalar	totalMisses
Stats::Formula	averageUpdates
Stats::Scalar	totalUpdates
Stats::Formula	averageHitRate
Stats::Scalar	insertions

Detailed Description

Definition at line 92 of file smmu_v3_caches.hh.

Member Typedef Documentation

Set

typedef std::vector<Entry> SMMUTLB::Set

private

Definition at line 142 of file smmu_v3_caches.hh.

Member Enumeration Documentation

AllocPolicy

enum SMMUTLB::AllocPolicy

Enumerator
ALLOC_ANY_WAY
ALLOC_ANY_BUT_LAST_WAY
ALLOC_LAST_WAY

Definition at line 95 of file smmu_v3_caches.hh.

Constructor & Destructor Documentation

SMMUTLB() [1/2]

SMMUTLB::SMMUTLB	(	unsigned	numEntries,
		unsigned	_associativity,
		const std::string &	policy
	)

Definition at line 149 of file smmu_v3_caches.cc.

References associativity, ArmISA::e, fatal, sets, and SMMUTLB::Entry::valid.

SMMUTLB() [2/2]

SMMUTLB::SMMUTLB ( const SMMUTLB &  tlb )

delete

~SMMUTLB()

virtual SMMUTLB::~SMMUTLB ( )

inlinevirtual

Definition at line 125 of file smmu_v3_caches.hh.

References ArmISA::asid, and ArmISA::va.

Member Function Documentation

invalidateAll()

void SMMUTLB::invalidateAll

(

)

Definition at line 348 of file smmu_v3_caches.cc.

References ArmISA::i, ArmISA::s, and sets.

invalidateASID()

void SMMUTLB::invalidateASID	(	uint16_t	asid,
		uint16_t	vmid
	)

Definition at line 318 of file smmu_v3_caches.cc.

References SMMUTLB::Entry::asid, ArmISA::e, ArmISA::i, ArmISA::s, sets, SMMUTLB::Entry::valid, and SMMUTLB::Entry::vmid.

invalidateSID()

void SMMUTLB::invalidateSID

(

uint32_t

sid

)

Definition at line 274 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, ArmISA::s, sets, SMMUTLB::Entry::sid, and SMMUTLB::Entry::valid.

invalidateSSID()

void SMMUTLB::invalidateSSID	(	uint32_t	sid,
		uint32_t	ssid
	)

Definition at line 261 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, pickSetIdx(), sets, SMMUTLB::Entry::sid, SMMUTLB::Entry::ssid, and SMMUTLB::Entry::valid.

invalidateVA()

void SMMUTLB::invalidateVA	(	Addr	va,
		uint16_t	asid,
		uint16_t	vmid
	)

Definition at line 289 of file smmu_v3_caches.cc.

References SMMUTLB::Entry::asid, ArmISA::e, ArmISA::i, pickSetIdx(), sets, SMMUTLB::Entry::va, SMMUTLB::Entry::valid, SMMUTLB::Entry::vaMask, and SMMUTLB::Entry::vmid.

invalidateVAA()

void SMMUTLB::invalidateVAA	(	Addr	va,
		uint16_t	vmid
	)

Definition at line 305 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, pickSetIdx(), sets, SMMUTLB::Entry::va, SMMUTLB::Entry::valid, SMMUTLB::Entry::vaMask, and SMMUTLB::Entry::vmid.

invalidateVMID()

void SMMUTLB::invalidateVMID

(

uint16_t

vmid

)

Definition at line 333 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, ArmISA::s, sets, SMMUTLB::Entry::valid, and SMMUTLB::Entry::vmid.

lookup()

const SMMUTLB::Entry * SMMUTLB::lookup	(	uint32_t	sid,
		uint32_t	ssid,
		Addr	va,
		bool	updStats = true
	)

Definition at line 179 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, SMMUTLB::Entry::lastUsed, panic, pickSetIdx(), sets, SMMUTLB::Entry::sid, SMMUTLB::Entry::ssid, SMMUv3BaseCache::totalLookups, SMMUv3BaseCache::totalMisses, SMMUv3BaseCache::useStamp, SMMUTLB::Entry::va, SMMUTLB::Entry::valid, and SMMUTLB::Entry::vaMask.

Referenced by SMMUTranslationProcess::ifcTLBLookup(), SMMUTranslationProcess::microTLBLookup(), and store().

lookupAnyVA()

const SMMUTLB::Entry * SMMUTLB::lookupAnyVA	(	uint32_t	sid,
		uint32_t	ssid,
		bool	updStats = true
	)

Definition at line 213 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, ArmISA::s, sets, SMMUTLB::Entry::sid, SMMUTLB::Entry::ssid, SMMUv3BaseCache::totalLookups, SMMUv3BaseCache::totalMisses, and SMMUTLB::Entry::valid.

pickEntryIdxToReplace()

size_t SMMUTLB::pickEntryIdxToReplace ( const Set &  set, AllocPolicy  alloc  )

private

Definition at line 371 of file smmu_v3_caches.cc.

References ALLOC_ANY_BUT_LAST_WAY, ALLOC_ANY_WAY, ALLOC_LAST_WAY, associativity, ArmISA::i, SMMUv3BaseCache::insertions, SMMUv3BaseCache::nextToReplace, panic, SMMUv3BaseCache::random, Random::random(), SMMUv3BaseCache::replacementPolicy, SMMU_CACHE_REPL_LRU, SMMU_CACHE_REPL_RANDOM, and SMMU_CACHE_REPL_ROUND_ROBIN.

Referenced by store().

pickSetIdx() [1/2]

size_t SMMUTLB::pickSetIdx ( uint32_t  sid, uint32_t  ssid  ) const

private

Definition at line 365 of file smmu_v3_caches.cc.

References sets.

Referenced by invalidateSSID(), invalidateVA(), invalidateVAA(), lookup(), and store().

pickSetIdx() [2/2]

size_t SMMUTLB::pickSetIdx ( Addr  va ) const

private

Definition at line 359 of file smmu_v3_caches.cc.

References sets.

store()

void SMMUTLB::store	(	const Entry &	incoming,
		AllocPolicy	alloc
	)

Definition at line 240 of file smmu_v3_caches.cc.

References SMMUTLB::Entry::lastUsed, lookup(), panic, pickEntryIdxToReplace(), pickSetIdx(), sets, SMMUTLB::Entry::sid, SMMUTLB::Entry::ssid, SMMUv3BaseCache::totalUpdates, SMMUTLB::Entry::va, and SMMUTLB::Entry::valid.

Referenced by SMMUTranslationProcess::ifcTLBUpdate(), and SMMUTranslationProcess::microTLBUpdate().

Member Data Documentation

associativity

size_t SMMUTLB::associativity

private

Definition at line 145 of file smmu_v3_caches.hh.

Referenced by pickEntryIdxToReplace(), and SMMUTLB().

sets

std::vector<Set> SMMUTLB::sets

private

Definition at line 143 of file smmu_v3_caches.hh.

Referenced by invalidateAll(), invalidateASID(), invalidateSID(), invalidateSSID(), invalidateVA(), invalidateVAA(), invalidateVMID(), lookup(), lookupAnyVA(), pickSetIdx(), SMMUTLB(), and store().

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

• dev/arm/smmu_v3_caches.hh
• dev/arm/smmu_v3_caches.cc