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gem5
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An address mapper changes the packet addresses in going from the slave port side of the mapper to the master port side. More...
#include <addr_mapper.hh>
Classes | |
| class | AddrMapperSenderState |
| class | MapperMasterPort |
| class | MapperSlavePort |
Public Member Functions | |
| AddrMapper (const AddrMapperParams *params) | |
| virtual | ~AddrMapper () |
| virtual BaseMasterPort & | getMasterPort (const std::string &if_name, PortID idx=InvalidPortID) |
| Get a master port with a given name and index. More... | |
| virtual BaseSlavePort & | getSlavePort (const std::string &if_name, PortID idx=InvalidPortID) |
| Get a slave port with a given name and index. More... | |
| virtual void | init () |
| init() is called after all C++ SimObjects have been created and all ports are connected. More... | |
 Public Member Functions inherited from MemObject | |
| const Params * | params () const |
| MemObject (const Params *params) | |
| 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 | 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 | |
| virtual Addr | remapAddr (Addr addr) const =0 |
| This function does the actual remapping of one address to another. More... | |
| void | recvFunctional (PacketPtr pkt) |
| void | recvFunctionalSnoop (PacketPtr pkt) |
| Tick | recvAtomic (PacketPtr pkt) |
| Tick | recvAtomicSnoop (PacketPtr pkt) |
| bool | recvTimingReq (PacketPtr pkt) |
| bool | recvTimingResp (PacketPtr pkt) |
| void | recvTimingSnoopReq (PacketPtr pkt) |
| bool | recvTimingSnoopResp (PacketPtr pkt) |
| virtual AddrRangeList | getAddrRanges () const =0 |
| bool | isSnooping () const |
| void | recvReqRetry () |
| void | recvRespRetry () |
| void | recvRangeChange () |
| 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 | |
| MapperMasterPort | masterPort |
| Instance of master port, facing the memory side. More... | |
| MapperSlavePort | slavePort |
| Instance of slave port, i.e. More... | |
| 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 MemObject | |
| typedef MemObjectParams | Params |
| 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 |
An address mapper changes the packet addresses in going from the slave port side of the mapper to the master port side.
When the slave port is queried for the address ranges, it also performs the necessary range updates. Note that snoop requests that travel from the master port (i.e. the memory side) to the slave port are currently not modified.
Definition at line 56 of file addr_mapper.hh.
| AddrMapper::AddrMapper | ( | const AddrMapperParams * | params | ) |
Definition at line 42 of file addr_mapper.cc.
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inlinevirtual |
Definition at line 63 of file addr_mapper.hh.
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protectedpure virtual |
Implemented in RangeAddrMapper.
Referenced by AddrMapper::MapperSlavePort::getAddrRanges().
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virtual |
Get a master port with a given name and index.
This is used at binding time and returns a reference to a protocol-agnostic base master port.
| if_name | Port name |
| idx | Index in the case of a VectorPort |
Reimplemented from MemObject.
Definition at line 57 of file addr_mapper.cc.
References MemObject::getMasterPort(), and masterPort.
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virtual |
Get a slave port with a given name and index.
This is used at binding time and returns a reference to a protocol-agnostic base master port.
| if_name | Port name |
| idx | Index in the case of a VectorPort |
Reimplemented from MemObject.
Definition at line 67 of file addr_mapper.cc.
References MemObject::getSlavePort(), and slavePort.
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virtual |
init() is called after all C++ SimObjects have been created and all ports are connected.
Initializations that are independent of unserialization but rely on a fully instantiated and connected SimObject graph should be done here.
Reimplemented from SimObject.
Definition at line 50 of file addr_mapper.cc.
References fatal, BaseMasterPort::isConnected(), BaseSlavePort::isConnected(), masterPort, and slavePort.
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protected |
Definition at line 188 of file addr_mapper.cc.
References fatal, SlavePort::isSnooping(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::isSnooping().
Definition at line 95 of file addr_mapper.cc.
References Packet::getAddr(), masterPort, remapAddr(), MasterPort::sendAtomic(), and Packet::setAddr().
Referenced by AddrMapper::MapperSlavePort::recvAtomic().
Definition at line 105 of file addr_mapper.cc.
References Packet::getAddr(), remapAddr(), SlavePort::sendAtomicSnoop(), Packet::setAddr(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvAtomicSnoop().
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protected |
Definition at line 77 of file addr_mapper.cc.
References Packet::getAddr(), masterPort, remapAddr(), MasterPort::sendFunctional(), and Packet::setAddr().
Referenced by AddrMapper::MapperSlavePort::recvFunctional().
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protected |
Definition at line 86 of file addr_mapper.cc.
References Packet::getAddr(), remapAddr(), SlavePort::sendFunctionalSnoop(), Packet::setAddr(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvFunctionalSnoop().
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protected |
Definition at line 208 of file addr_mapper.cc.
References SlavePort::sendRangeChange(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvRangeChange().
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protected |
Definition at line 196 of file addr_mapper.cc.
References SlavePort::sendRetryReq(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvReqRetry().
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protected |
Definition at line 202 of file addr_mapper.cc.
References masterPort, and MasterPort::sendRetryResp().
Referenced by AddrMapper::MapperSlavePort::recvRespRetry().
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protected |
Definition at line 115 of file addr_mapper.cc.
References Packet::cacheResponding(), Packet::getAddr(), masterPort, Packet::needsResponse(), Packet::popSenderState(), Packet::pushSenderState(), remapAddr(), MasterPort::sendTimingReq(), and Packet::setAddr().
Referenced by AddrMapper::MapperSlavePort::recvTimingReq().
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protected |
Definition at line 143 of file addr_mapper.cc.
References Packet::getAddr(), SimObject::name(), AddrMapper::AddrMapperSenderState::origAddr, panic, Packet::SenderState::predecessor, Packet::senderState, SlavePort::sendTimingResp(), Packet::setAddr(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvTimingResp().
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protected |
Definition at line 176 of file addr_mapper.cc.
References SlavePort::sendTimingSnoopReq(), and slavePort.
Referenced by AddrMapper::MapperMasterPort::recvTimingSnoopReq().
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protected |
Definition at line 182 of file addr_mapper.cc.
References masterPort, and MasterPort::sendTimingSnoopResp().
Referenced by AddrMapper::MapperSlavePort::recvTimingSnoopResp().
This function does the actual remapping of one address to another.
It is pure virtual in this case to to allow any implementation required.
| addr | the address to remap |
Implemented in RangeAddrMapper.
Referenced by recvAtomic(), recvAtomicSnoop(), recvFunctional(), recvFunctionalSnoop(), and recvTimingReq().
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protected |
Instance of master port, facing the memory side.
Definition at line 158 of file addr_mapper.hh.
Referenced by getMasterPort(), init(), recvAtomic(), recvFunctional(), recvRespRetry(), recvTimingReq(), and recvTimingSnoopResp().
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protected |
Instance of slave port, i.e.
on the CPU side
Definition at line 208 of file addr_mapper.hh.
Referenced by getSlavePort(), init(), isSnooping(), recvAtomicSnoop(), recvFunctionalSnoop(), recvRangeChange(), recvReqRetry(), recvTimingResp(), and recvTimingSnoopReq().