gem5
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#include <stage2_mmu.hh>
Classes | |
class | Stage2Translation |
This translation class is used to trigger the data fetch once a timing translation returns the translated physical address. More... | |
Public Types | |
typedef ArmStage2MMUParams | Params |
Public Types inherited from SimObject | |
typedef SimObjectParams | Params |
Public Member Functions | |
Stage2MMU (const Params *p) | |
DmaPort & | getPort () |
Get the port that ultimately belongs to the stage-two MMU, but is used by the two table walkers, and is exposed externally and connected through the stage-one table walker. More... | |
Fault | readDataUntimed (ThreadContext *tc, Addr oVAddr, Addr descAddr, uint8_t *data, int numBytes, Request::Flags flags, bool isFunctional) |
Fault | readDataTimed (ThreadContext *tc, Addr descAddr, Stage2Translation *translation, int numBytes, Request::Flags flags) |
TLB * | stage1Tlb () const |
TLB * | stage2Tlb () const |
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 | regStats () |
Register statistics for this object. 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... | |
Protected Attributes | |
DmaPort | port |
Port to issue translation requests from. More... | |
MasterID | masterId |
Request id for requests generated by this MMU. 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... | |
Private Attributes | |
TLB * | _stage1Tlb |
TLB * | _stage2Tlb |
The TLB that will cache the stage 2 look ups. More... | |
Additional Inherited Members | |
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 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... | |
Definition at line 52 of file stage2_mmu.hh.
typedef ArmStage2MMUParams ArmISA::Stage2MMU::Params |
Definition at line 105 of file stage2_mmu.hh.
Stage2MMU::Stage2MMU | ( | const Params * | p | ) |
Definition at line 51 of file stage2_mmu.cc.
References masterId, ArmISA::TLB::setMMU(), stage1Tlb(), and stage2Tlb().
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inline |
Get the port that ultimately belongs to the stage-two MMU, but is used by the two table walkers, and is exposed externally and connected through the stage-one table walker.
Definition at line 113 of file stage2_mmu.hh.
References port.
Referenced by ArmISA::TLB::getMasterPort(), and ArmISA::TableWalker::setMMU().
Fault Stage2MMU::readDataTimed | ( | ThreadContext * | tc, |
Addr | descAddr, | ||
Stage2Translation * | translation, | ||
int | numBytes, | ||
Request::Flags | flags | ||
) |
Definition at line 101 of file stage2_mmu.cc.
References masterId, Request::PT_WALK, ArmISA::Stage2MMU::Stage2Translation::setVirt(), and ArmISA::Stage2MMU::Stage2Translation::translateTiming().
Referenced by ArmISA::TableWalker::fetchDescriptor().
Fault Stage2MMU::readDataUntimed | ( | ThreadContext * | tc, |
Addr | oVAddr, | ||
Addr | descAddr, | ||
uint8_t * | data, | ||
int | numBytes, | ||
Request::Flags | flags, | ||
bool | isFunctional | ||
) |
Definition at line 64 of file stage2_mmu.cc.
References ArmISA::ArmFault::annotate(), Packet::dataStatic(), Request::getFlags(), Packet::isError(), Flags< T >::isSet(), masterId, Request::NO_ACCESS, NoFault, ArmISA::ArmFault::OVA, port, Request::PT_WALK, BaseTLB::Read, MemCmd::ReadReq, ArmISA::ArmFault::S1PTW, MasterPort::sendAtomic(), MasterPort::sendFunctional(), Request::setVirt(), stage2Tlb(), ArmISA::TLB::translateAtomic(), and ArmISA::TLB::translateFunctional().
Referenced by ArmISA::TableWalker::fetchDescriptor().
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inline |
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inline |
Definition at line 122 of file stage2_mmu.hh.
References _stage2Tlb.
Referenced by ArmISA::TLB::init(), readDataUntimed(), Stage2MMU(), and ArmISA::Stage2MMU::Stage2Translation::translateTiming().
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private |
Definition at line 55 of file stage2_mmu.hh.
Referenced by stage1Tlb().
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private |
The TLB that will cache the stage 2 look ups.
Definition at line 57 of file stage2_mmu.hh.
Referenced by stage2Tlb().
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protected |
Request id for requests generated by this MMU.
Definition at line 65 of file stage2_mmu.hh.
Referenced by readDataTimed(), readDataUntimed(), and Stage2MMU().
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protected |
Port to issue translation requests from.
Definition at line 62 of file stage2_mmu.hh.
Referenced by getPort(), and readDataUntimed().