gem5
v20.1.0.0
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#include <simple_indirect.hh>
Classes | |
struct | HistoryEntry |
struct | IPredEntry |
struct | ThreadInfo |
Public Member Functions | |
SimpleIndirectPredictor (const SimpleIndirectPredictorParams *params) | |
bool | lookup (Addr br_addr, TheISA::PCState &br_target, ThreadID tid) |
void | recordIndirect (Addr br_addr, Addr tgt_addr, InstSeqNum seq_num, ThreadID tid) |
void | commit (InstSeqNum seq_num, ThreadID tid, void *indirect_history) |
void | squash (InstSeqNum seq_num, ThreadID tid) |
void | recordTarget (InstSeqNum seq_num, void *indirect_history, const TheISA::PCState &target, ThreadID tid) |
void | genIndirectInfo (ThreadID tid, void *&indirect_history) |
void | updateDirectionInfo (ThreadID tid, bool actually_taken) |
void | deleteIndirectInfo (ThreadID tid, void *indirect_history) |
void | changeDirectionPrediction (ThreadID tid, void *indirect_history, bool actually_taken) |
Public Member Functions inherited from IndirectPredictor | |
IndirectPredictor (const Params *params) | |
Public Member Functions inherited from SimObject | |
const Params * | params () const |
SimObject (const Params *_params) | |
virtual | ~SimObject () |
virtual const std::string | name () const |
virtual void | init () |
init() is called after all C++ SimObjects have been created and all ports are connected. More... | |
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... | |
ProbeManager * | getProbeManager () |
Get the probe manager for this object. More... | |
virtual Port & | getPort (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 EventManager | |
EventQueue * | eventQueue () 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 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 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 Stats::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 (Stats::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 Info * | resolveStat (std::string name) const |
Resolve a stat by its name within this group. More... | |
Group ()=delete | |
Group (const Group &)=delete | |
Group & | operator= (const Group &)=delete |
Private Member Functions | |
Addr | getSetIndex (Addr br_addr, unsigned ghr, ThreadID tid) |
Addr | getTag (Addr br_addr) |
Private Attributes | |
const bool | hashGHR |
const bool | hashTargets |
const unsigned | numSets |
const unsigned | numWays |
const unsigned | tagBits |
const unsigned | pathLength |
const unsigned | instShift |
const unsigned | ghrNumBits |
const unsigned | ghrMask |
std::vector< std::vector< IPredEntry > > | targetCache |
std::vector< ThreadInfo > | threadInfo |
Additional Inherited Members | |
Public Types inherited from IndirectPredictor | |
typedef IndirectPredictorParams | Params |
Public Types inherited from SimObject | |
typedef SimObjectParams | Params |
Static Public Member Functions inherited from SimObject | |
static void | serializeAll (CheckpointOut &cp) |
Serialize all SimObjects in the system. More... | |
static SimObject * | find (const char *name) |
Find the SimObject with the given name and return a pointer to it. More... | |
Static Public Member Functions inherited from Serializable | |
static const std::string & | currentSection () |
Gets the fully-qualified name of the active section. More... | |
static void | serializeAll (const std::string &cpt_dir) |
Serializes all the SimObjects. More... | |
static void | unserializeGlobals (CheckpointIn &cp) |
Protected Member Functions inherited from 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 SimObject | |
const SimObjectParams * | _params |
Cached copy of the object parameters. More... | |
Protected Attributes inherited from EventManager | |
EventQueue * | eventq |
A pointer to this object's event queue. More... | |
Definition at line 39 of file simple_indirect.hh.
SimpleIndirectPredictor::SimpleIndirectPredictor | ( | const SimpleIndirectPredictorParams * | params | ) |
Definition at line 34 of file simple_indirect.cc.
References fatal_if, SimpleIndirectPredictor::ThreadInfo::ghr, ghrNumBits, ArmISA::i, isPowerOf2(), numSets, numWays, panic, SimObject::params(), targetCache, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 81 of file simple_indirect.cc.
References ghrMask, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 121 of file simple_indirect.cc.
References DPRINTF, SimpleIndirectPredictor::ThreadInfo::headHistEntry, SimpleIndirectPredictor::ThreadInfo::pathHist, pathLength, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 163 of file simple_indirect.cc.
References threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 62 of file simple_indirect.cc.
References threadInfo.
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inlineprivate |
Definition at line 212 of file simple_indirect.cc.
References floorLog2(), hashGHR, hashTargets, ArmISA::i, instShift, numSets, MipsISA::p, SimpleIndirectPredictor::ThreadInfo::pathHist, pathLength, and threadInfo.
Referenced by lookup(), and recordTarget().
Definition at line 232 of file simple_indirect.cc.
References instShift, and tagBits.
Referenced by lookup(), and recordTarget().
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Implements IndirectPredictor.
Definition at line 90 of file simple_indirect.cc.
References DPRINTF, getSetIndex(), getTag(), numSets, targetCache, and threadInfo.
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Implements IndirectPredictor.
Definition at line 112 of file simple_indirect.cc.
References DPRINTF, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 173 of file simple_indirect.cc.
References DPRINTF, getSetIndex(), getTag(), numSets, numWays, SimpleIndirectPredictor::ThreadInfo::pathHist, targetCache, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 144 of file simple_indirect.cc.
References DPRINTF, SimpleIndirectPredictor::ThreadInfo::pathHist, and threadInfo.
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virtual |
Implements IndirectPredictor.
Definition at line 72 of file simple_indirect.cc.
References ghrMask, and threadInfo.
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private |
Definition at line 66 of file simple_indirect.hh.
Referenced by changeDirectionPrediction(), and updateDirectionInfo().
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private |
Definition at line 65 of file simple_indirect.hh.
Referenced by SimpleIndirectPredictor().
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private |
Definition at line 58 of file simple_indirect.hh.
Referenced by getSetIndex().
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private |
Definition at line 59 of file simple_indirect.hh.
Referenced by getSetIndex().
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private |
Definition at line 64 of file simple_indirect.hh.
Referenced by getSetIndex(), and getTag().
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private |
Definition at line 60 of file simple_indirect.hh.
Referenced by getSetIndex(), lookup(), recordTarget(), and SimpleIndirectPredictor().
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private |
Definition at line 61 of file simple_indirect.hh.
Referenced by recordTarget(), and SimpleIndirectPredictor().
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private |
Definition at line 63 of file simple_indirect.hh.
Referenced by commit(), and getSetIndex().
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private |
Definition at line 62 of file simple_indirect.hh.
Referenced by getTag().
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private |
Definition at line 75 of file simple_indirect.hh.
Referenced by lookup(), recordTarget(), and SimpleIndirectPredictor().
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private |
Definition at line 98 of file simple_indirect.hh.
Referenced by changeDirectionPrediction(), commit(), deleteIndirectInfo(), genIndirectInfo(), getSetIndex(), lookup(), recordIndirect(), recordTarget(), SimpleIndirectPredictor(), squash(), and updateDirectionInfo().