gem5  v21.2.1.1
Public Member Functions | Public Attributes | List of all members
gem5::prefetch::IndirectMemory::PrefetchTableEntry Struct Reference

Prefetch Table Entry. More...

Inheritance diagram for gem5::prefetch::IndirectMemory::PrefetchTableEntry:
gem5::TaggedEntry gem5::ReplaceableEntry

Public Member Functions

 PrefetchTableEntry (unsigned indirect_counter_bits)
 
void invalidate () override
 Invalidate the block. More...
 
- Public Member Functions inherited from gem5::TaggedEntry
 TaggedEntry ()
 
 ~TaggedEntry ()=default
 
virtual bool isValid () const
 Checks if the entry is valid. More...
 
bool isSecure () const
 Check if this block holds data from the secure memory space. More...
 
virtual Addr getTag () const
 Get tag associated to this block. More...
 
virtual bool matchTag (Addr tag, bool is_secure) const
 Checks if the given tag information corresponds to this entry's. More...
 
virtual void insert (const Addr tag, const bool is_secure)
 Insert the block by assigning it a tag and marking it valid. More...
 
std::string print () const override
 Prints relevant information about this entry. More...
 
- Public Member Functions inherited from gem5::ReplaceableEntry
 ReplaceableEntry ()=default
 
virtual ~ReplaceableEntry ()=default
 
virtual void setPosition (const uint32_t set, const uint32_t way)
 Set both the set and way. More...
 
uint32_t getSet () const
 Get set number. More...
 
uint32_t getWay () const
 Get way number. More...
 

Public Attributes

Addr address
 Accessed address. More...
 
bool secure
 Whether this address is in the secure region. More...
 
unsigned int streamCounter
 Confidence counter of the stream. More...
 
bool enabled
 Enable bit of the indirect fields. More...
 
int64_t index
 Current index value. More...
 
Addr baseAddr
 BaseAddr detected. More...
 
int shift
 Shift detected. More...
 
SatCounter8 indirectCounter
 Confidence counter of the indirect fields. More...
 
bool increasedIndirectCounter
 This variable is set to indicate that there has been at least one match with the current index value. More...
 
- Public Attributes inherited from gem5::ReplaceableEntry
std::shared_ptr< replacement_policy::ReplacementDatareplacementData
 Replacement data associated to this entry. More...
 

Additional Inherited Members

- Protected Member Functions inherited from gem5::TaggedEntry
virtual void setTag (Addr tag)
 Set tag associated to this block. More...
 
virtual void setSecure ()
 Set secure bit. More...
 
virtual void setValid ()
 Set valid bit. More...
 
- Protected Attributes inherited from gem5::ReplaceableEntry
uint32_t _set
 Set to which this entry belongs. More...
 
uint32_t _way
 Way (relative position within the set) to which this entry belongs. More...
 

Detailed Description

Prefetch Table Entry.

Definition at line 71 of file indirect_memory.hh.

Constructor & Destructor Documentation

◆ PrefetchTableEntry()

gem5::prefetch::IndirectMemory::PrefetchTableEntry::PrefetchTableEntry ( unsigned  indirect_counter_bits)
inline

Definition at line 102 of file indirect_memory.hh.

Member Function Documentation

◆ invalidate()

void gem5::prefetch::IndirectMemory::PrefetchTableEntry::invalidate ( )
inlineoverridevirtual

Invalidate the block.

Its contents are no longer valid.

Reimplemented from gem5::TaggedEntry.

Definition at line 110 of file indirect_memory.hh.

References address, baseAddr, enabled, increasedIndirectCounter, index, indirectCounter, gem5::TaggedEntry::invalidate(), gem5::GenericSatCounter< T >::reset(), secure, shift, and streamCounter.

Member Data Documentation

◆ address

Addr gem5::prefetch::IndirectMemory::PrefetchTableEntry::address

Accessed address.

Definition at line 76 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), and invalidate().

◆ baseAddr

Addr gem5::prefetch::IndirectMemory::PrefetchTableEntry::baseAddr

◆ enabled

bool gem5::prefetch::IndirectMemory::PrefetchTableEntry::enabled

Enable bit of the indirect fields.

Definition at line 85 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), invalidate(), and gem5::prefetch::IndirectMemory::trackMissIndex2().

◆ increasedIndirectCounter

bool gem5::prefetch::IndirectMemory::PrefetchTableEntry::increasedIndirectCounter

This variable is set to indicate that there has been at least one match with the current index value.

This information is later used when a new index is updated. If there were no increases in the indirectCounter, the counter is decremented.

Definition at line 100 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), and invalidate().

◆ index

int64_t gem5::prefetch::IndirectMemory::PrefetchTableEntry::index

Current index value.

Definition at line 87 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), and invalidate().

◆ indirectCounter

SatCounter8 gem5::prefetch::IndirectMemory::PrefetchTableEntry::indirectCounter

Confidence counter of the indirect fields.

Definition at line 93 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), invalidate(), and gem5::prefetch::IndirectMemory::trackMissIndex2().

◆ secure

bool gem5::prefetch::IndirectMemory::PrefetchTableEntry::secure

Whether this address is in the secure region.

Definition at line 78 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), and invalidate().

◆ shift

int gem5::prefetch::IndirectMemory::PrefetchTableEntry::shift

◆ streamCounter

unsigned int gem5::prefetch::IndirectMemory::PrefetchTableEntry::streamCounter

Confidence counter of the stream.

Definition at line 80 of file indirect_memory.hh.

Referenced by gem5::prefetch::IndirectMemory::calculatePrefetch(), and invalidate().


The documentation for this struct was generated from the following file:

Generated on Wed May 4 2022 12:15:49 for gem5 by doxygen 1.8.17