gem5
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#include <stride.hh>
Classes | |
class | PCTable |
struct | StrideEntry |
Public Member Functions | |
StridePrefetcher (const StridePrefetcherParams *p) | |
void | calculatePrefetch (const PacketPtr &pkt, std::vector< AddrPriority > &addresses) |
Public Member Functions inherited from QueuedPrefetcher | |
QueuedPrefetcher (const QueuedPrefetcherParams *p) | |
virtual | ~QueuedPrefetcher () |
Tick | notify (const PacketPtr &pkt) |
Notify prefetcher of cache access (may be any access or just misses, depending on cache parameters.) More... | |
PacketPtr | insert (AddrPriority &info, bool is_secure) |
PacketPtr | getPacket () |
Tick | nextPrefetchReadyTime () const |
void | regStats () |
Register statistics for this object. More... | |
Public Member Functions inherited from BasePrefetcher | |
BasePrefetcher (const BasePrefetcherParams *p) | |
virtual | ~BasePrefetcher () |
void | setCache (BaseCache *_cache) |
Public Member Functions inherited from ClockedObject | |
ClockedObject (const ClockedObjectParams *p) | |
const Params * | params () const |
void | serialize (CheckpointOut &cp) const override |
Serialize an object. More... | |
void | unserialize (CheckpointIn &cp) override |
Unserialize an object. More... | |
Enums::PwrState | pwrState () const |
std::string | pwrStateName () const |
std::vector< double > | pwrStateWeights () const |
Returns the percentage residency for each power state. More... | |
void | computeStats () |
Record stats values like state residency by computing the time difference from previous update. More... | |
void | pwrState (Enums::PwrState) |
void | regStats () override |
Register statistics for this object. More... | |
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 | resetStats () |
Reset statistics associated with this object. 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 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 | |
EventManager (EventManager &em) | |
EventManager (EventManager *em) | |
EventManager (EventQueue *eq) | |
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) |
void | setCurTick (Tick newVal) |
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 Clocked | |
void | updateClockPeriod () const |
Update the tick to the current tick. More... | |
Tick | clockEdge (Cycles cycles=Cycles(0)) const |
Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle. More... | |
Cycles | curCycle () const |
Determine the current cycle, corresponding to a tick aligned to a clock edge. More... | |
Tick | nextCycle () const |
Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future. More... | |
uint64_t | frequency () const |
Tick | clockPeriod () const |
double | voltage () const |
Cycles | ticksToCycles (Tick t) const |
Tick | cyclesToTicks (Cycles c) const |
Protected Member Functions | |
bool | pcTableHit (Addr pc, bool is_secure, int master_id, StrideEntry *&entry) |
StrideEntry * | pcTableVictim (Addr pc, int master_id) |
Addr | pcHash (Addr pc) const |
Protected Member Functions inherited from QueuedPrefetcher | |
std::list< DeferredPacket > ::const_iterator | inPrefetch (Addr address, bool is_secure) const |
std::list< DeferredPacket > ::iterator | inPrefetch (Addr address, bool is_secure) |
Protected Member Functions inherited from BasePrefetcher | |
bool | observeAccess (const PacketPtr &pkt) const |
Determine if this access should be observed. More... | |
bool | inCache (Addr addr, bool is_secure) const |
Determine if address is in cache. More... | |
bool | inMissQueue (Addr addr, bool is_secure) const |
Determine if address is in cache miss queue. More... | |
bool | samePage (Addr a, Addr b) const |
Determine if addresses are on the same page. More... | |
Addr | blockAddress (Addr a) const |
Determine the address of the block in which a lays. More... | |
Addr | blockIndex (Addr a) const |
Determine the address of a at block granularity. More... | |
Addr | pageAddress (Addr a) const |
Determine the address of the page in which a lays. More... | |
Addr | pageOffset (Addr a) const |
Determine the page-offset of a. More... | |
Addr | pageIthBlockAddress (Addr page, uint32_t i) const |
Build the address of the i-th block inside the page. More... | |
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 Member Functions inherited from Clocked | |
Clocked (ClockDomain &clk_domain) | |
Create a clocked object and set the clock domain based on the parameters. More... | |
Clocked (Clocked &)=delete | |
Clocked & | operator= (Clocked &)=delete |
virtual | ~Clocked () |
Virtual destructor due to inheritance. More... | |
void | resetClock () const |
Reset the object's clock using the current global tick value. More... | |
Protected Attributes | |
const int | maxConf |
const int | threshConf |
const int | minConf |
const int | startConf |
const int | pcTableAssoc |
const int | pcTableSets |
const bool | useMasterId |
const int | degree |
PCTable | pcTable |
Protected Attributes inherited from QueuedPrefetcher | |
std::list< DeferredPacket > | pfq |
const unsigned | queueSize |
Maximum size of the prefetch queue. More... | |
const Cycles | latency |
Cycles after generation when a prefetch can first be issued. More... | |
const bool | queueSquash |
Squash queued prefetch if demand access observed. More... | |
const bool | queueFilter |
Filter prefetches if already queued. More... | |
const bool | cacheSnoop |
Snoop the cache before generating prefetch (cheating basically) More... | |
const bool | tagPrefetch |
Tag prefetch with PC of generating access? More... | |
Stats::Scalar | pfIdentified |
Stats::Scalar | pfBufferHit |
Stats::Scalar | pfInCache |
Stats::Scalar | pfRemovedFull |
Stats::Scalar | pfSpanPage |
Protected Attributes inherited from BasePrefetcher | |
BaseCache * | cache |
Pointr to the parent cache. More... | |
unsigned | blkSize |
The block size of the parent cache. More... | |
unsigned | lBlkSize |
log_2(block size of the parent cache). More... | |
System * | system |
System we belong to. More... | |
bool | onMiss |
Only consult prefetcher on cache misses? More... | |
bool | onRead |
Consult prefetcher on reads? More... | |
bool | onWrite |
Consult prefetcher on reads? More... | |
bool | onData |
Consult prefetcher on data accesses? More... | |
bool | onInst |
Consult prefetcher on instruction accesses? More... | |
MasterID | masterId |
Request id for prefetches. More... | |
const Addr | pageBytes |
Stats::Scalar | pfIssued |
Protected Attributes inherited from ClockedObject | |
Enums::PwrState | _currPwrState |
To keep track of the current power state. More... | |
Tick | prvEvalTick |
Stats::Scalar | numPwrStateTransitions |
Stats::Distribution | pwrStateClkGateDist |
Stats::Vector | pwrStateResidencyTicks |
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... | |
Additional Inherited Members | |
Public Types inherited from ClockedObject | |
typedef ClockedObjectParams | Params |
Parameters of ClockedObject. More... | |
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 () |
Get the fully-qualified name of the active section. More... | |
static void | serializeAll (const std::string &cpt_dir) |
static void | unserializeGlobals (CheckpointIn &cp) |
Static Public Attributes inherited from Serializable | |
static int | ckptCount = 0 |
static int | ckptMaxCount = 0 |
static int | ckptPrevCount = -1 |
Protected Types inherited from QueuedPrefetcher | |
using | AddrPriority = std::pair< Addr, int32_t > |
using | const_iterator = std::list< DeferredPacket >::const_iterator |
using | iterator = std::list< DeferredPacket >::iterator |
StridePrefetcher::StridePrefetcher | ( | const StridePrefetcherParams * | p | ) |
Definition at line 55 of file stride.cc.
References isPowerOf2(), BasePrefetcher::onInst, and pcTableSets.
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Implements QueuedPrefetcher.
Definition at line 102 of file stride.cc.
References BasePrefetcher::blkSize, StridePrefetcher::StrideEntry::confidence, ArmISA::d, degree, DPRINTF, Packet::getAddr(), Request::getPC(), Request::hasPC(), StridePrefetcher::StrideEntry::instAddr, StridePrefetcher::StrideEntry::isSecure, Packet::isSecure(), StridePrefetcher::StrideEntry::lastAddr, Request::masterId(), maxConf, minConf, pc, pcTableHit(), pcTableVictim(), QueuedPrefetcher::pfSpanPage, Packet::req, BasePrefetcher::samePage(), startConf, StridePrefetcher::StrideEntry::stride, threshConf, and useMasterId.
Definition at line 181 of file stride.cc.
References floorLog2(), and pcTableSets.
Referenced by pcTableHit(), and pcTableVictim().
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Definition at line 200 of file stride.cc.
References DPRINTF, pcHash(), pcTable, and pcTableAssoc.
Referenced by calculatePrefetch().
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inlineprotected |
Definition at line 189 of file stride.cc.
References DPRINTF, pcHash(), pcTable, pcTableAssoc, Random::random(), and random_mt.
Referenced by calculatePrefetch().
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Definition at line 69 of file stride.hh.
Referenced by calculatePrefetch().
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Definition at line 59 of file stride.hh.
Referenced by calculatePrefetch().
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Definition at line 61 of file stride.hh.
Referenced by calculatePrefetch().
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Definition at line 107 of file stride.hh.
Referenced by pcTableHit(), and pcTableVictim().
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Definition at line 64 of file stride.hh.
Referenced by pcTableHit(), and pcTableVictim().
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Definition at line 65 of file stride.hh.
Referenced by pcHash(), StridePrefetcher(), and StridePrefetcher::PCTable::~PCTable().
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Definition at line 62 of file stride.hh.
Referenced by calculatePrefetch().
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Definition at line 60 of file stride.hh.
Referenced by calculatePrefetch().
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Definition at line 67 of file stride.hh.
Referenced by calculatePrefetch().