IPACache Class Reference

#include <smmu_v3_caches.hh>

Inheritance diagram for IPACache:

Classes
struct	Entry

Public Member Functions
	IPACache (unsigned numEntries, unsigned _associativity, const std::string &policy)
virtual	~IPACache ()
const Entry *	lookup (Addr ipa, uint16_t vmid, bool updStats=true)
void	store (const Entry &incoming)
void	invalidateIPA (Addr ipa, uint16_t vmid)
void	invalidateIPAA (Addr ipa)
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 (Addr ipa, uint16_t vmid) const
size_t	pickEntryIdxToReplace (const Set &set)

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 194 of file smmu_v3_caches.hh.

Member Typedef Documentation

Set

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

private

Definition at line 225 of file smmu_v3_caches.hh.

Constructor & Destructor Documentation

IPACache()

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

Definition at line 625 of file smmu_v3_caches.cc.

References associativity, ArmISA::e, fatal, and sets.

~IPACache()

virtual IPACache::~IPACache ( )

inlinevirtual

Definition at line 214 of file smmu_v3_caches.hh.

Member Function Documentation

invalidateAll()

void IPACache::invalidateAll

(

)

Definition at line 751 of file smmu_v3_caches.cc.

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

Referenced by SMMUv3::processCommand().

invalidateIPA()

void IPACache::invalidateIPA	(	Addr	ipa,
		uint16_t	vmid
	)

Definition at line 708 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, pickSetIdx(), and sets.

Referenced by SMMUv3::processCommand().

invalidateIPAA()

void IPACache::invalidateIPAA

(

Addr

ipa

)

Definition at line 721 of file smmu_v3_caches.cc.

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

invalidateVMID()

void IPACache::invalidateVMID

(

uint16_t

vmid

)

Definition at line 736 of file smmu_v3_caches.cc.

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

Referenced by SMMUv3::processCommand().

lookup()

const IPACache::Entry * IPACache::lookup	(	Addr	ipa,
		uint16_t	vmid,
		bool	updStats = true
	)

Definition at line 655 of file smmu_v3_caches.cc.

References ArmISA::e, ArmISA::i, IPACache::Entry::lastUsed, panic, pickSetIdx(), sets, SMMUv3BaseCache::totalLookups, SMMUv3BaseCache::totalMisses, and SMMUv3BaseCache::useStamp.

Referenced by store(), and SMMUTranslationProcess::translateStage2().

pickEntryIdxToReplace()

size_t IPACache::pickEntryIdxToReplace ( const Set &  set )

private

Definition at line 768 of file smmu_v3_caches.cc.

References 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()

size_t IPACache::pickSetIdx ( Addr  ipa, uint16_t  vmid  ) const

private

Definition at line 762 of file smmu_v3_caches.cc.

References sets, and ArmISA::va.

Referenced by invalidateIPA(), lookup(), and store().

store()

void IPACache::store

(

const Entry &

incoming

)

Definition at line 688 of file smmu_v3_caches.cc.

References IPACache::Entry::ipa, IPACache::Entry::lastUsed, lookup(), panic, pickEntryIdxToReplace(), pickSetIdx(), sets, SMMUv3BaseCache::totalUpdates, IPACache::Entry::valid, and IPACache::Entry::vmid.

Referenced by SMMUTranslationProcess::translateStage2().

Member Data Documentation

associativity

size_t IPACache::associativity

private

Definition at line 228 of file smmu_v3_caches.hh.

Referenced by IPACache(), and pickEntryIdxToReplace().

sets

std::vector<Set> IPACache::sets

private

Definition at line 226 of file smmu_v3_caches.hh.

Referenced by invalidateAll(), invalidateIPA(), invalidateIPAA(), invalidateVMID(), IPACache(), lookup(), pickSetIdx(), 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