gem5  v22.1.0.0
Classes | Public Member Functions | Protected Attributes | Private Types | Private Member Functions | Private Attributes | List of all members
gem5::WalkCache Class Reference

#include <smmu_v3_caches.hh>

Inheritance diagram for gem5::WalkCache:
gem5::SMMUv3BaseCache

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, 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::VegaISA::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::VegaISA::s, gem5::ArmISA::set, and sets.

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::VegaISA::s, gem5::ArmISA::set, sets, and gem5::ArmISA::va.

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::VegaISA::s, gem5::ArmISA::set, sets, and gem5::ArmISA::va.

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::VegaISA::s, gem5::ArmISA::set, and sets.

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().

The documentation for this class was generated from the following files:
Generated on Wed Dec 21 2022 10:23:18 for gem5 by doxygen 1.9.1