gem5  v21.2.0.0
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gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector Class Reference

#include <tage_sc_l_8KB.hh>

Inheritance diagram for gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector:
gem5::branch_prediction::StatisticalCorrector gem5::SimObject gem5::EventManager gem5::Serializable gem5::Drainable gem5::statistics::Group gem5::Named

Classes

struct  SC_8KB_ThreadHistory
 

Public Member Functions

 TAGE_SC_L_8KB_StatisticalCorrector (const TAGE_SC_L_8KB_StatisticalCorrectorParams &p)
 
unsigned getIndBiasBank (Addr branch_pc, BranchInfo *bi, int hitBank, int altBank) const override
 
int gPredictions (ThreadID tid, Addr branch_pc, BranchInfo *bi, int &lsum, int64_t phist) override
 
int gIndexLogsSubstr (int nbr, int i) override
 
void scHistoryUpdate (Addr branch_pc, const StaticInstPtr &inst, bool taken, BranchInfo *tage_bi, Addr corrTarget) override
 
void gUpdates (ThreadID tid, Addr pc, bool taken, BranchInfo *bi, int64_t phist) override
 
- Public Member Functions inherited from gem5::branch_prediction::StatisticalCorrector
 StatisticalCorrector (const StatisticalCorrectorParams &p)
 
virtual BranchInfomakeBranchInfo ()
 
virtual void initBias ()
 
virtual bool scPredict (ThreadID tid, Addr branch_pc, bool cond_branch, BranchInfo *bi, bool prev_pred_taken, bool bias_bit, bool use_conf_ctr, int8_t conf_ctr, unsigned conf_bits, int hitBank, int altBank, int64_t phist, int init_lsum=0)
 
virtual unsigned getIndBias (Addr branch_pc, BranchInfo *bi, bool b) const
 
virtual unsigned getIndBiasSK (Addr branch_pc, BranchInfo *bi) const
 
virtual unsigned getIndUpd (Addr branch_pc) const
 
unsigned getIndUpds (Addr branch_pc) const
 
int64_t gIndex (Addr branch_pc, int64_t bhist, int logs, int nbr, int i)
 
int gPredict (Addr branch_pc, int64_t hist, std::vector< int > &length, std::vector< int8_t > *tab, int nbr, int logs, std::vector< int8_t > &w)
 
virtual void gUpdate (Addr branch_pc, bool taken, int64_t hist, std::vector< int > &length, std::vector< int8_t > *tab, int nbr, int logs, std::vector< int8_t > &w, BranchInfo *bi)
 
void initGEHLTable (unsigned numLenghts, std::vector< int > lengths, std::vector< int8_t > *&table, unsigned logNumEntries, std::vector< int8_t > &w, int8_t wInitValue)
 
void init () override
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
void updateStats (bool taken, BranchInfo *bi)
 
virtual void condBranchUpdate (ThreadID tid, Addr branch_pc, bool taken, BranchInfo *bi, Addr corrTarget, bool bias_bit, int hitBank, int altBank, int64_t phist)
 
virtual size_t getSizeInBits () const
 
- Public Member Functions inherited from gem5::SimObject
const Paramsparams () const
 
 SimObject (const Params &p)
 
virtual ~SimObject ()
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void initState ()
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
virtual void regProbeListeners ()
 Register probe listeners for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual PortgetPort (const std::string &if_name, PortID idx=InvalidPortID)
 Get a port with a given name and index. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from gem5::EventManager
EventQueueeventQueue () const
 
void schedule (Event &event, Tick when)
 
void deschedule (Event &event)
 
void reschedule (Event &event, Tick when, bool always=false)
 
void schedule (Event *event, Tick when)
 
void deschedule (Event *event)
 
void reschedule (Event *event, Tick when, bool always=false)
 
void wakeupEventQueue (Tick when=(Tick) -1)
 This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...
 
void setCurTick (Tick newVal)
 
 EventManager (EventManager &em)
 Event manger manages events in the event queue. More...
 
 EventManager (EventManager *em)
 
 EventManager (EventQueue *eq)
 
- Public Member Functions inherited from gem5::Serializable
 Serializable ()
 
virtual ~Serializable ()
 
void serializeSection (CheckpointOut &cp, const char *name) const
 Serialize an object into a new section. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
void unserializeSection (CheckpointIn &cp, const std::string &name)
 
- Public Member Functions inherited from gem5::Drainable
DrainState drainState () const
 Return the current drain state of an object. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from gem5::statistics::Group
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void regStats ()
 Callback to set stat parameters. More...
 
virtual void resetStats ()
 Callback to reset stats. More...
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (statistics::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 
const InforesolveStat (std::string name) const
 Resolve a stat by its name within this group. More...
 
void mergeStatGroup (Group *block)
 Merge the contents (stats & children) of a block to this block. More...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 
- Public Member Functions inherited from gem5::Named
 Named (const std::string &name_)
 
virtual ~Named ()=default
 
virtual std::string name () const
 

Private Member Functions

SCThreadHistorymakeThreadHistory () override
 

Private Attributes

const unsigned gnb
 
const unsigned logGnb
 
std::vector< int > gm
 
std::vector< int8_t > * ggehl
 
std::vector< int8_t > wg
 

Additional Inherited Members

- Public Types inherited from gem5::SimObject
typedef SimObjectParams Params
 
- Static Public Member Functions inherited from gem5::SimObject
static void serializeAll (const std::string &cpt_dir)
 Create a checkpoint by serializing all SimObjects in the system. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
static void setSimObjectResolver (SimObjectResolver *resolver)
 There is a single object name resolver, and it is only set when simulation is restoring from checkpoints. More...
 
static SimObjectResolvergetSimObjectResolver ()
 There is a single object name resolver, and it is only set when simulation is restoring from checkpoints. More...
 
- Static Public Member Functions inherited from gem5::Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
 Generate a checkpoint file so that the serialization can be routed to it. More...
 
- Protected Member Functions inherited from gem5::branch_prediction::StatisticalCorrector
template<typename T >
void ctrUpdate (T &ctr, bool taken, int nbits)
 
- Protected Member Functions inherited from gem5::Drainable
 Drainable ()
 
virtual ~Drainable ()
 
virtual void drainResume ()
 Resume execution after a successful drain. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 
- Protected Attributes inherited from gem5::branch_prediction::StatisticalCorrector
SCThreadHistoryscHistory
 
const unsigned logBias
 
const unsigned logSizeUp
 
const unsigned logSizeUps
 
const unsigned numEntriesFirstLocalHistories
 
const unsigned bwnb
 
const unsigned logBwnb
 
std::vector< int > bwm
 
std::vector< int8_t > * bwgehl
 
std::vector< int8_t > wbw
 
const unsigned lnb
 
const unsigned logLnb
 
std::vector< int > lm
 
std::vector< int8_t > * lgehl
 
std::vector< int8_t > wl
 
const unsigned inb
 
const unsigned logInb
 
std::vector< int > im
 
std::vector< int8_t > * igehl
 
std::vector< int8_t > wi
 
std::vector< int8_t > bias
 
std::vector< int8_t > biasSK
 
std::vector< int8_t > biasBank
 
std::vector< int8_t > wb
 
int updateThreshold
 
std::vector< int > pUpdateThreshold
 
const unsigned chooserConfWidth
 
const unsigned updateThresholdWidth
 
const unsigned pUpdateThresholdWidth
 
const unsigned extraWeightsWidth
 
const unsigned scCountersWidth
 
int8_t firstH
 
int8_t secondH
 
gem5::branch_prediction::StatisticalCorrector::StatisticalCorrectorStats stats
 
- Protected Attributes inherited from gem5::SimObject
const SimObjectParams & _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from gem5::EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Detailed Description

Definition at line 76 of file tage_sc_l_8KB.hh.

Constructor & Destructor Documentation

◆ TAGE_SC_L_8KB_StatisticalCorrector()

gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::TAGE_SC_L_8KB_StatisticalCorrector ( const TAGE_SC_L_8KB_StatisticalCorrectorParams &  p)

Member Function Documentation

◆ getIndBiasBank()

unsigned gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::getIndBiasBank ( Addr  branch_pc,
BranchInfo bi,
int  hitBank,
int  altBank 
) const
overridevirtual

◆ gIndexLogsSubstr()

int gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::gIndexLogsSubstr ( int  nbr,
int  i 
)
overridevirtual

Implements gem5::branch_prediction::StatisticalCorrector.

Definition at line 104 of file tage_sc_l_8KB.cc.

◆ gPredictions()

int gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::gPredictions ( ThreadID  tid,
Addr  branch_pc,
BranchInfo bi,
int &  lsum,
int64_t  phist 
)
overridevirtual

◆ gUpdates()

void gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::gUpdates ( ThreadID  tid,
Addr  pc,
bool  taken,
BranchInfo bi,
int64_t  phist 
)
overridevirtual

◆ makeThreadHistory()

TAGE_SC_L_8KB_StatisticalCorrector::SCThreadHistory * gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::makeThreadHistory ( )
overrideprivatevirtual

◆ scHistoryUpdate()

void gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::scHistoryUpdate ( Addr  branch_pc,
const StaticInstPtr inst,
bool  taken,
BranchInfo tage_bi,
Addr  corrTarget 
)
overridevirtual

Member Data Documentation

◆ ggehl

std::vector<int8_t>* gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::ggehl
private

Definition at line 82 of file tage_sc_l_8KB.hh.

Referenced by gPredictions(), gUpdates(), and TAGE_SC_L_8KB_StatisticalCorrector().

◆ gm

std::vector<int> gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::gm
private

Definition at line 81 of file tage_sc_l_8KB.hh.

Referenced by gPredictions(), gUpdates(), and TAGE_SC_L_8KB_StatisticalCorrector().

◆ gnb

const unsigned gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::gnb
private

Definition at line 79 of file tage_sc_l_8KB.hh.

Referenced by gPredictions(), gUpdates(), and TAGE_SC_L_8KB_StatisticalCorrector().

◆ logGnb

const unsigned gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::logGnb
private

Definition at line 80 of file tage_sc_l_8KB.hh.

Referenced by gPredictions(), gUpdates(), and TAGE_SC_L_8KB_StatisticalCorrector().

◆ wg

std::vector<int8_t> gem5::branch_prediction::TAGE_SC_L_8KB_StatisticalCorrector::wg
private

Definition at line 83 of file tage_sc_l_8KB.hh.

Referenced by gPredictions(), gUpdates(), and TAGE_SC_L_8KB_StatisticalCorrector().


The documentation for this class was generated from the following files:

Generated on Tue Dec 21 2021 11:35:26 for gem5 by doxygen 1.8.17