gem5::WalkCache Class Reference

#include <smmu_v3_caches.hh>

Inheritance diagram for gem5::WalkCache:

Classes
struct	Entry
struct	WalkCacheStats

Public Member Functions
	WalkCache (const std::array< unsigned, 2 *WALK_CACHE_LEVELS > &_sizes, unsigned _associativity, const std::string &policy, statistics::Group *parent)
virtual	~WalkCache ()
const Entry *	lookup (Addr va, Addr vaMask, uint16_t asid, uint16_t vmid, unsigned stage, unsigned level, bool updStats=true)
void	store (const Entry &incoming)
void	invalidateVA (Addr va, uint16_t asid, uint16_t vmid, const bool leaf_only)
void	invalidateVAA (Addr va, uint16_t vmid, const bool leaf_only)
void	invalidateASID (uint16_t asid, uint16_t vmid)
void	invalidateVMID (uint16_t vmid)
void	invalidateAll ()
Public Member Functions inherited from gem5::SMMUv3BaseCache
	SMMUv3BaseCache (const std::string &policy_name, uint32_t seed, statistics::Group *parent, const std::string &name)
virtual	~SMMUv3BaseCache ()

Protected Attributes
gem5::WalkCache::WalkCacheStats	walkCacheStats
Protected Attributes inherited from gem5::SMMUv3BaseCache
int	replacementPolicy
size_t	nextToReplace
Random	random
uint32_t	useStamp
gem5::SMMUv3BaseCache::SMMUv3BaseCacheStats	baseCacheStats

Private Types
typedef std::vector< Entry >	Set

Private Member Functions
size_t	pickSetIdx (Addr va, Addr vaMask, unsigned stage, unsigned level) const
size_t	pickEntryIdxToReplace (const Set &set, unsigned stage, unsigned level)

Private Attributes
std::vector< Set >	sets
size_t	associativity
std::array< unsigned, 2 *WALK_CACHE_LEVELS >	sizes
std::array< unsigned, 2 *WALK_CACHE_LEVELS >	offsets

Additional Inherited Members
Static Protected Member Functions inherited from gem5::SMMUv3BaseCache
static int	decodePolicyName (const std::string &policy_name)

Detailed Description

Definition at line 292 of file smmu_v3_caches.hh.

Member Typedef Documentation

Set

typedef std::vector<Entry> gem5::WalkCache::Set

private

Definition at line 350 of file smmu_v3_caches.hh.

Constructor & Destructor Documentation

WalkCache()

gem5::WalkCache::WalkCache	(	const std::array< unsigned, 2 *WALK_CACHE_LEVELS > &	_sizes,
		unsigned	_associativity,
		const std::string &	policy,
		statistics::Group *	parent )

Definition at line 977 of file smmu_v3_caches.cc.

References associativity, gem5::ArmISA::e, fatal, gem5::ArmISA::i, offsets, gem5::ArmISA::set, sets, sizes, gem5::WalkCache::Entry::valid, and WALK_CACHE_LEVELS.

~WalkCache()

virtual gem5::WalkCache::~WalkCache ( )

inlinevirtual

Definition at line 317 of file smmu_v3_caches.hh.

Member Function Documentation

invalidateAll()

void gem5::WalkCache::invalidateAll

(

)

Definition at line 1158 of file smmu_v3_caches.cc.

References gem5::ArmISA::i, gem5::ArmISA::s, gem5::ArmISA::set, and sets.

Referenced by gem5::SMMUv3::processCommand().

invalidateASID()

void gem5::WalkCache::invalidateASID	(	uint16_t	asid,
		uint16_t	vmid )

Definition at line 1128 of file smmu_v3_caches.cc.

References gem5::ArmISA::asid, gem5::ArmISA::e, gem5::ArmISA::i, gem5::ArmISA::s, gem5::ArmISA::set, sets, and gem5::WalkCache::Entry::valid.

Referenced by gem5::SMMUv3::processCommand().

invalidateVA()

void gem5::WalkCache::invalidateVA	(	Addr	va,
		uint16_t	asid,
		uint16_t	vmid,
		const bool	leaf_only )

Definition at line 1091 of file smmu_v3_caches.cc.

References gem5::ArmISA::asid, gem5::ArmISA::e, gem5::ArmISA::i, gem5::ArmISA::s, gem5::ArmISA::set, sets, gem5::ArmISA::va, and gem5::WalkCache::Entry::valid.

Referenced by gem5::SMMUv3::processCommand().

invalidateVAA()

void gem5::WalkCache::invalidateVAA	(	Addr	va,
		uint16_t	vmid,
		const bool	leaf_only )

Definition at line 1110 of file smmu_v3_caches.cc.

References gem5::ArmISA::e, gem5::ArmISA::i, gem5::ArmISA::s, gem5::ArmISA::set, sets, gem5::ArmISA::va, and gem5::WalkCache::Entry::valid.

Referenced by gem5::SMMUv3::processCommand().

invalidateVMID()

void gem5::WalkCache::invalidateVMID

(

uint16_t

vmid

)

Definition at line 1143 of file smmu_v3_caches.cc.

References gem5::ArmISA::e, gem5::ArmISA::i, gem5::ArmISA::s, gem5::ArmISA::set, sets, and gem5::WalkCache::Entry::valid.

Referenced by gem5::SMMUv3::processCommand().

lookup()

const WalkCache::Entry * gem5::WalkCache::lookup	(	Addr	va,
		Addr	vaMask,
		uint16_t	asid,
		uint16_t	vmid,
		unsigned	stage,
		unsigned	level,
		bool	updStats = true )

Definition at line 1021 of file smmu_v3_caches.cc.

References gem5::ArmISA::asid, gem5::SMMUv3BaseCache::baseCacheStats, gem5::ArmISA::e, gem5::ArmISA::i, gem5::WalkCache::Entry::lastUsed, gem5::X86ISA::level, panic, pickSetIdx(), gem5::ArmISA::set, sets, gem5::SMMUv3BaseCache::SMMUv3BaseCacheStats::totalLookups, gem5::WalkCache::WalkCacheStats::totalLookupsByStageLevel, gem5::SMMUv3BaseCache::SMMUv3BaseCacheStats::totalMisses, gem5::WalkCache::WalkCacheStats::totalMissesByStageLevel, gem5::SMMUv3BaseCache::useStamp, gem5::ArmISA::va, and walkCacheStats.

Referenced by store(), and gem5::SMMUTranslationProcess::walkCacheLookup().

pickEntryIdxToReplace()

size_t gem5::WalkCache::pickEntryIdxToReplace ( const Set & set, unsigned stage, unsigned level )

private

Definition at line 1197 of file smmu_v3_caches.cc.

References associativity, gem5::SMMUv3BaseCache::baseCacheStats, gem5::ArmISA::i, gem5::SMMUv3BaseCache::SMMUv3BaseCacheStats::insertions, gem5::WalkCache::WalkCacheStats::insertionsByStageLevel, gem5::X86ISA::level, gem5::SMMUv3BaseCache::nextToReplace, panic, gem5::Random::random(), gem5::SMMUv3BaseCache::random, gem5::SMMUv3BaseCache::replacementPolicy, gem5::ArmISA::set, gem5::SMMU_CACHE_REPL_LRU, gem5::SMMU_CACHE_REPL_RANDOM, gem5::SMMU_CACHE_REPL_ROUND_ROBIN, and walkCacheStats.

Referenced by store().

pickSetIdx()

size_t gem5::WalkCache::pickSetIdx ( Addr va, Addr vaMask, unsigned stage, unsigned level ) const

private

Definition at line 1169 of file smmu_v3_caches.cc.

References gem5::findLsbSet(), gem5::X86ISA::level, gem5::ArmISA::offset, offsets, panic, sizes, gem5::ArmISA::va, and WALK_CACHE_LEVELS.

Referenced by lookup(), and store().

store()

void gem5::WalkCache::store

(

const Entry &

incoming

)

Definition at line 1062 of file smmu_v3_caches.cc.

References gem5::WalkCache::Entry::asid, gem5::SMMUv3BaseCache::baseCacheStats, gem5::WalkCache::Entry::lastUsed, gem5::WalkCache::Entry::level, lookup(), panic, pickEntryIdxToReplace(), pickSetIdx(), gem5::ArmISA::set, sets, gem5::WalkCache::Entry::stage, gem5::SMMUv3BaseCache::SMMUv3BaseCacheStats::totalUpdates, gem5::WalkCache::WalkCacheStats::totalUpdatesByStageLevel, gem5::WalkCache::Entry::va, gem5::WalkCache::Entry::valid, gem5::WalkCache::Entry::vaMask, gem5::WalkCache::Entry::vmid, WALK_CACHE_LEVELS, and walkCacheStats.

Referenced by gem5::SMMUTranslationProcess::walkCacheUpdate().

Member Data Documentation

associativity

size_t gem5::WalkCache::associativity

private

Definition at line 353 of file smmu_v3_caches.hh.

Referenced by pickEntryIdxToReplace(), and WalkCache().

offsets

std::array<unsigned, 2*WALK_CACHE_LEVELS> gem5::WalkCache::offsets

private

Definition at line 355 of file smmu_v3_caches.hh.

Referenced by pickSetIdx(), and WalkCache().

sets

std::vector<Set> gem5::WalkCache::sets

private

Definition at line 351 of file smmu_v3_caches.hh.

Referenced by invalidateAll(), invalidateASID(), invalidateVA(), invalidateVAA(), invalidateVMID(), lookup(), store(), and WalkCache().

sizes

std::array<unsigned, 2*WALK_CACHE_LEVELS> gem5::WalkCache::sizes

private

Definition at line 354 of file smmu_v3_caches.hh.

Referenced by pickSetIdx(), and WalkCache().

walkCacheStats

gem5::WalkCache::WalkCacheStats gem5::WalkCache::walkCacheStats

protected

Referenced by lookup(), pickEntryIdxToReplace(), 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