gem5  v21.2.1.1
Public Member Functions | List of all members
gem5::branch_prediction::MPP_LoopPredictor_8KB Class Reference

#include <multiperspective_perceptron_tage_8KB.hh>

Inheritance diagram for gem5::branch_prediction::MPP_LoopPredictor_8KB:
gem5::branch_prediction::MPP_LoopPredictor gem5::branch_prediction::LoopPredictor gem5::SimObject gem5::EventManager gem5::Serializable gem5::Drainable gem5::statistics::Group gem5::Named

Public Member Functions

 MPP_LoopPredictor_8KB (const MPP_LoopPredictor_8KBParams &p)
 
- Public Member Functions inherited from gem5::branch_prediction::MPP_LoopPredictor
 MPP_LoopPredictor (const MPP_LoopPredictorParams &p)
 
bool calcConf (int index) const override
 
bool optionalAgeInc () const override
 
- Public Member Functions inherited from gem5::branch_prediction::LoopPredictor
int lindex (Addr pc_in, unsigned instShiftAmt) const
 Computes the index used to access the loop predictor. More...
 
int finallindex (int lindex, int lowPcBits, int way) const
 Computes the index used to access the ltable structures. More...
 
bool getLoop (Addr pc, BranchInfo *bi, bool speculative, unsigned instShiftAmt) const
 Get a branch prediction from the loop predictor. More...
 
void loopUpdate (Addr pc, bool Taken, BranchInfo *bi, bool tage_pred)
 Updates the loop predictor. More...
 
void specLoopUpdate (bool taken, BranchInfo *bi)
 Speculatively updates the loop predictor iteration count (only for useSpeculation). More...
 
void condBranchUpdate (ThreadID tid, Addr branch_pc, bool taken, bool tage_pred, BranchInfo *bi, unsigned instShiftAmt)
 Update LTAGE for conditional branches. More...
 
bool loopPredict (ThreadID tid, Addr branch_pc, bool cond_branch, BranchInfo *bi, bool prev_pred_taken, unsigned instShiftAmt)
 Get the loop prediction. More...
 
void updateStats (bool taken, BranchInfo *bi)
 Update the stats. More...
 
void squashLoop (BranchInfo *bi)
 
void squash (ThreadID tid, BranchInfo *bi)
 
virtual BranchInfomakeBranchInfo ()
 
int8_t getLoopUseCounter () const
 Gets the value of the loop use counter. More...
 
void init () override
 Initialize the loop predictor. More...
 
 LoopPredictor (const LoopPredictorParams &p)
 
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
 

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::Drainable
 Drainable ()
 
virtual ~Drainable ()
 
virtual void drainResume ()
 Resume execution after a successful drain. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 
- Static Protected Member Functions inherited from gem5::branch_prediction::LoopPredictor
static void unsignedCtrUpdate (uint8_t &ctr, bool up, unsigned nbits)
 Updates an unsigned counter based on up/down parameter. More...
 
static void signedCtrUpdate (int8_t &ctr, bool up, unsigned nbits)
 
- Protected Attributes inherited from gem5::branch_prediction::LoopPredictor
const unsigned logSizeLoopPred
 
const unsigned loopTableAgeBits
 
const unsigned loopTableConfidenceBits
 
const unsigned loopTableTagBits
 
const unsigned loopTableIterBits
 
const unsigned logLoopTableAssoc
 
const uint8_t confidenceThreshold
 
const uint16_t loopTagMask
 
const uint16_t loopNumIterMask
 
const int loopSetMask
 
LoopEntryltable
 
int8_t loopUseCounter
 
unsigned withLoopBits
 
const bool useDirectionBit
 
const bool useSpeculation
 
const bool useHashing
 
const bool restrictAllocation
 
const unsigned initialLoopIter
 
const unsigned initialLoopAge
 
const bool optionalAgeReset
 
gem5::branch_prediction::LoopPredictor::LoopPredictorStats 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 61 of file multiperspective_perceptron_tage_8KB.hh.

Constructor & Destructor Documentation

◆ MPP_LoopPredictor_8KB()

gem5::branch_prediction::MPP_LoopPredictor_8KB::MPP_LoopPredictor_8KB ( const MPP_LoopPredictor_8KBParams &  p)
inline

Definition at line 64 of file multiperspective_perceptron_tage_8KB.hh.


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

Generated on Wed May 4 2022 12:15:01 for gem5 by doxygen 1.8.17