ConfigCache Class Reference

#include <smmu_v3_caches.hh>

Inheritance diagram for ConfigCache:

Classes
struct	Entry

Public Member Functions
	ConfigCache (unsigned numEntries, unsigned _associativity, const std::string &policy)
virtual	~ConfigCache ()
const Entry *	lookup (uint32_t sid, uint32_t ssid, bool updStats=true)
void	store (const Entry &incoming)
void	invalidateSSID (uint32_t sid, uint32_t ssid)
void	invalidateSID (uint32_t sid)
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	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 234 of file smmu_v3_caches.hh.

Member Typedef Documentation

Set

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

private

Definition at line 272 of file smmu_v3_caches.hh.

Constructor & Destructor Documentation

ConfigCache()

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

Definition at line 805 of file smmu_v3_caches.cc.

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

~ConfigCache()

virtual ConfigCache::~ConfigCache ( )

inlinevirtual

Definition at line 262 of file smmu_v3_caches.hh.

Member Function Documentation

invalidateAll()

void ConfigCache::invalidateAll

(

)

Definition at line 915 of file smmu_v3_caches.cc.

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

Referenced by SMMUv3::processCommand().

invalidateSID()

void ConfigCache::invalidateSID

(

uint32_t

sid

)

Definition at line 900 of file smmu_v3_caches.cc.

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

Referenced by SMMUv3::processCommand().

invalidateSSID()

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

Definition at line 887 of file smmu_v3_caches.cc.

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

Referenced by SMMUv3::processCommand().

lookup()

const ConfigCache::Entry * ConfigCache::lookup	(	uint32_t	sid,
		uint32_t	ssid,
		bool	updStats = true
	)

Definition at line 835 of file smmu_v3_caches.cc.

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

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

pickEntryIdxToReplace()

size_t ConfigCache::pickEntryIdxToReplace ( const Set &  set )

private

Definition at line 932 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 ConfigCache::pickSetIdx ( uint32_t  sid, uint32_t  ssid  ) const

private

Definition at line 926 of file smmu_v3_caches.cc.

References sets.

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

store()

void ConfigCache::store

(

const Entry &

incoming

)

Definition at line 867 of file smmu_v3_caches.cc.

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

Referenced by SMMUTranslationProcess::configCacheUpdate().

Member Data Documentation

associativity

size_t ConfigCache::associativity

private

Definition at line 275 of file smmu_v3_caches.hh.

Referenced by ConfigCache(), and pickEntryIdxToReplace().

sets

std::vector<Set> ConfigCache::sets

private

Definition at line 273 of file smmu_v3_caches.hh.

Referenced by ConfigCache(), invalidateAll(), invalidateSID(), invalidateSSID(), 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