|
gem5
v22.1.0.0
|
#include <generic_timer.hh>
Public Member Functions | |
| GenericTimerFrame (const GenericTimerFrameParams &p) | |
| void | serialize (CheckpointOut &cp) const override |
| Serialize an object. More... | |
| void | unserialize (CheckpointIn &cp) override |
| Unserialize an object. More... | |
| bool | hasVirtualTimer () const |
| Indicates if this frame implements a virtual timer. More... | |
| uint64_t | getVirtOffset () const |
| Returns the virtual offset for this frame if a virtual timer is implemented. More... | |
| void | setVirtOffset (uint64_t new_offset) |
| Sets the virtual offset for this frame's virtual timer after a write to CNTVOFF. More... | |
| bool | hasEl0View () const |
| Indicates if this frame implements a second EL0 view. More... | |
| uint8_t | getAccessBits () const |
| Returns the access bits for this frame. More... | |
| void | setAccessBits (uint8_t data) |
| Updates the access bits after a write to CNTCTLBase.CNTACR. More... | |
| bool | hasNonSecureAccess () const |
| Indicates if non-secure accesses are allowed to this frame. More... | |
| void | setNonSecureAccess () |
| Allows non-secure accesses after an enabling write to CNTCTLBase.CNTNSAR. More... | |
| bool | hasReadableVoff () const |
| Indicates if CNTVOFF is readable for this frame. More... | |
Public Member Functions inherited from gem5::PioDevice | |
| PioDevice (const Params &p) | |
| virtual | ~PioDevice () |
| void | init () override |
| init() is called after all C++ SimObjects have been created and all ports are connected. More... | |
| Port & | getPort (const std::string &if_name, PortID idx=InvalidPortID) override |
| Get a port with a given name and index. More... | |
Public Member Functions inherited from gem5::ClockedObject | |
| ClockedObject (const ClockedObjectParams &p) | |
| 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::SimObject | |
| const Params & | params () 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... | |
| 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 gem5::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 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 Info * | resolveStat (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 | |
| Group & | operator= (const Group &)=delete |
Public Member Functions inherited from gem5::Named | |
| Named (const std::string &name_) | |
| virtual | ~Named ()=default |
| virtual std::string | name () const |
Public Member Functions inherited from gem5::Clocked | |
| void | updateClockPeriod () |
| 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 | |
| AddrRangeList | getAddrRanges () const override |
| Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to. More... | |
| Tick | read (PacketPtr pkt) override |
| Pure virtual function that the device must implement. More... | |
| Tick | write (PacketPtr pkt) override |
| Pure virtual function that the device must implement. 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... | |
Protected Member Functions inherited from gem5::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... | |
| virtual void | clockPeriodUpdated () |
| A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed. More... | |
Private Member Functions | |
| uint64_t | timerRead (Addr addr, size_t size, bool is_sec, bool to_el0) const |
| CNTBase/CNTEL0Base (Memory-mapped timer frame) More... | |
| void | timerWrite (Addr addr, size_t size, uint64_t data, bool is_sec, bool to_el0) |
| BitUnion8 (AccessBits) Bitfield< 5 > rwpt | |
| Reports access properties of the CNTBase register frame elements. More... | |
| EndBitUnion (AccessBits) AccessBits accessBits | |
| BitUnion16 (AccessBitsEl0) Bitfield< 9 > pten | |
| EndBitUnion (AccessBitsEl0) AccessBitsEl0 accessBitsEl0 | |
Private Attributes | |
| const AddrRange | timerRange |
| AddrRange | timerEl0Range |
| AddrRangeList | addrRanges |
| All MMIO ranges GenericTimerFrame responds to. More... | |
| SystemCounter & | systemCounter |
| System counter reference. More... | |
| ArchTimer | physTimer |
| Physical and virtual timers. More... | |
| ArchTimer | virtTimer |
| Bitfield< 4 > | rwvt |
| Bitfield< 3 > | rvoff |
| Bitfield< 2 > | rfrq |
| Bitfield< 1 > | rvct |
| Bitfield< 0 > | rpct |
| Bitfield< 8 > | vten |
| Bitfield< 1 > | vcten |
| Bitfield< 0 > | pcten |
| bool | nonSecureAccess |
| Reports whether non-secure accesses are allowed to this frame. More... | |
| ArmSystem & | system |
Static Private Attributes | |
| static const Addr | TIMER_CNTPCT_LO = 0x00 |
| static const Addr | TIMER_CNTPCT_HI = 0x04 |
| static const Addr | TIMER_CNTVCT_LO = 0x08 |
| static const Addr | TIMER_CNTVCT_HI = 0x0c |
| static const Addr | TIMER_CNTFRQ = 0x10 |
| static const Addr | TIMER_CNTEL0ACR = 0x14 |
| static const Addr | TIMER_CNTVOFF_LO = 0x18 |
| static const Addr | TIMER_CNTVOFF_HI = 0x1c |
| static const Addr | TIMER_CNTP_CVAL_LO = 0x20 |
| static const Addr | TIMER_CNTP_CVAL_HI = 0x24 |
| static const Addr | TIMER_CNTP_TVAL = 0x28 |
| static const Addr | TIMER_CNTP_CTL = 0x2c |
| static const Addr | TIMER_CNTV_CVAL_LO = 0x30 |
| static const Addr | TIMER_CNTV_CVAL_HI = 0x34 |
| static const Addr | TIMER_CNTV_TVAL = 0x38 |
| static const Addr | TIMER_CNTV_CTL = 0x3c |
Additional Inherited Members | |
Public Types inherited from gem5::PioDevice | |
| using | Params = PioDeviceParams |
Public Types inherited from gem5::ClockedObject | |
| using | Params = ClockedObjectParams |
| Parameters of ClockedObject. More... | |
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 SimObject * | find (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 SimObjectResolver * | getSimObjectResolver () |
| 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... | |
Public Attributes inherited from gem5::ClockedObject | |
| PowerState * | powerState |
Protected Attributes inherited from gem5::PioDevice | |
| System * | sys |
| PioPort< PioDevice > | pioPort |
| The pioPort that handles the requests for us and provides us requests that it sees. More... | |
Protected Attributes inherited from gem5::SimObject | |
| const SimObjectParams & | _params |
| Cached copy of the object parameters. More... | |
Protected Attributes inherited from gem5::EventManager | |
| EventQueue * | eventq |
| A pointer to this object's event queue. More... | |
Definition at line 413 of file generic_timer.hh.
| gem5::GenericTimerFrame::GenericTimerFrame | ( | const GenericTimerFrameParams & | p | ) |
Definition at line 980 of file generic_timer.cc.
References timerRange.
|
private |
|
private |
Reports access properties of the CNTBase register frame elements.
|
private |
|
private |
| uint8_t gem5::GenericTimerFrame::getAccessBits | ( | ) | const |
Returns the access bits for this frame.
Definition at line 1047 of file generic_timer.cc.
|
overrideprotectedvirtual |
Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to.
Implements gem5::PioDevice.
Definition at line 1077 of file generic_timer.cc.
References addrRanges.
| uint64_t gem5::GenericTimerFrame::getVirtOffset | ( | ) | const |
Returns the virtual offset for this frame if a virtual timer is implemented.
Definition at line 1029 of file generic_timer.cc.
References gem5::ArchTimer::offset(), and virtTimer.
| bool gem5::GenericTimerFrame::hasEl0View | ( | ) | const |
Indicates if this frame implements a second EL0 view.
Definition at line 1041 of file generic_timer.cc.
References timerEl0Range, and gem5::AddrRange::valid().
Referenced by read(), serialize(), timerRead(), timerWrite(), unserialize(), and write().
| bool gem5::GenericTimerFrame::hasNonSecureAccess | ( | ) | const |
Indicates if non-secure accesses are allowed to this frame.
Definition at line 1059 of file generic_timer.cc.
References nonSecureAccess.
| bool gem5::GenericTimerFrame::hasReadableVoff | ( | ) | const |
Indicates if CNTVOFF is readable for this frame.
Definition at line 1071 of file generic_timer.cc.
| bool gem5::GenericTimerFrame::hasVirtualTimer | ( | ) | const |
Indicates if this frame implements a virtual timer.
Pure virtual function that the device must implement.
Called when a read command is recieved by the port.
| pkt | Packet describing this request |
Implements gem5::PioDevice.
Definition at line 1083 of file generic_timer.cc.
References gem5::X86ISA::addr, gem5::AddrRange::contains(), DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getSize(), hasEl0View(), gem5::Packet::isSecure(), gem5::Packet::makeResponse(), gem5::ArmISA::offset, panic, panic_if, gem5::Packet::setUintX(), gem5::AddrRange::start(), timerEl0Range, timerRange, and timerRead().
|
overridevirtual |
Serialize an object.
Output an object's state into the current checkpoint section.
| cp | Checkpoint state |
Implements gem5::Serializable.
Definition at line 1005 of file generic_timer.cc.
References hasEl0View(), nonSecureAccess, physTimer, SERIALIZE_SCALAR, gem5::Serializable::serializeSection(), and virtTimer.
| void gem5::GenericTimerFrame::setAccessBits | ( | uint8_t | data | ) |
Updates the access bits after a write to CNTCTLBase.CNTACR.
Definition at line 1053 of file generic_timer.cc.
References data.
| void gem5::GenericTimerFrame::setNonSecureAccess | ( | ) |
Allows non-secure accesses after an enabling write to CNTCTLBase.CNTNSAR.
Definition at line 1065 of file generic_timer.cc.
References nonSecureAccess.
| void gem5::GenericTimerFrame::setVirtOffset | ( | uint64_t | new_offset | ) |
Sets the virtual offset for this frame's virtual timer after a write to CNTVOFF.
Definition at line 1035 of file generic_timer.cc.
References gem5::ArchTimer::setOffset(), and virtTimer.
|
private |
CNTBase/CNTEL0Base (Memory-mapped timer frame)
Definition at line 1144 of file generic_timer.cc.
References gem5::X86ISA::addr, gem5::ArchTimer::compareValue(), gem5::ArchTimer::control(), gem5::SystemCounter::freq(), hasEl0View(), nonSecureAccess, gem5::ArchTimer::offset(), physTimer, system, systemCounter, TIMER_CNTEL0ACR, TIMER_CNTFRQ, TIMER_CNTP_CTL, TIMER_CNTP_CVAL_HI, TIMER_CNTP_CVAL_LO, TIMER_CNTP_TVAL, TIMER_CNTPCT_HI, TIMER_CNTPCT_LO, TIMER_CNTV_CTL, TIMER_CNTV_CVAL_HI, TIMER_CNTV_CVAL_LO, TIMER_CNTV_TVAL, TIMER_CNTVCT_HI, TIMER_CNTVCT_LO, TIMER_CNTVOFF_HI, TIMER_CNTVOFF_LO, gem5::ArchTimer::timerValue(), gem5::GenericTimerMem::validateAccessPerm(), gem5::ArchTimer::value(), virtTimer, and warn.
Referenced by read().
|
private |
Definition at line 1256 of file generic_timer.cc.
References gem5::X86ISA::addr, gem5::ArchTimer::compareValue(), data, hasEl0View(), gem5::insertBits(), nonSecureAccess, physTimer, gem5::ArchTimer::setCompareValue(), gem5::ArchTimer::setControl(), gem5::ArchTimer::setTimerValue(), system, TIMER_CNTEL0ACR, TIMER_CNTFRQ, TIMER_CNTP_CTL, TIMER_CNTP_CVAL_HI, TIMER_CNTP_CVAL_LO, TIMER_CNTP_TVAL, TIMER_CNTPCT_HI, TIMER_CNTPCT_LO, TIMER_CNTV_CTL, TIMER_CNTV_CVAL_HI, TIMER_CNTV_CVAL_LO, TIMER_CNTV_TVAL, TIMER_CNTVCT_HI, TIMER_CNTVCT_LO, TIMER_CNTVOFF_HI, TIMER_CNTVOFF_LO, gem5::GenericTimerMem::validateAccessPerm(), virtTimer, and warn.
Referenced by write().
|
overridevirtual |
Unserialize an object.
Read an object's state from the current checkpoint section.
| cp | Checkpoint state |
Implements gem5::Serializable.
Definition at line 1017 of file generic_timer.cc.
References hasEl0View(), nonSecureAccess, physTimer, UNSERIALIZE_SCALAR, gem5::Serializable::unserializeSection(), and virtTimer.
Pure virtual function that the device must implement.
Called when a write command is recieved by the port.
| pkt | Packet describing this request |
Implements gem5::PioDevice.
Definition at line 1114 of file generic_timer.cc.
References gem5::X86ISA::addr, gem5::AddrRange::contains(), data, DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getSize(), gem5::Packet::getUintX(), hasEl0View(), gem5::Packet::isSecure(), gem5::Packet::makeResponse(), gem5::ArmISA::offset, panic, panic_if, gem5::AddrRange::start(), timerEl0Range, timerRange, and timerWrite().
|
private |
All MMIO ranges GenericTimerFrame responds to.
Definition at line 482 of file generic_timer.hh.
Referenced by getAddrRanges().
|
private |
Reports whether non-secure accesses are allowed to this frame.
Definition at line 512 of file generic_timer.hh.
Referenced by hasNonSecureAccess(), serialize(), setNonSecureAccess(), timerRead(), timerWrite(), and unserialize().
|
private |
Definition at line 507 of file generic_timer.hh.
|
private |
Physical and virtual timers.
Definition at line 488 of file generic_timer.hh.
Referenced by serialize(), timerRead(), timerWrite(), and unserialize().
|
private |
Definition at line 496 of file generic_timer.hh.
|
private |
Definition at line 498 of file generic_timer.hh.
|
private |
Definition at line 497 of file generic_timer.hh.
|
private |
Definition at line 495 of file generic_timer.hh.
|
private |
Definition at line 494 of file generic_timer.hh.
|
private |
Definition at line 514 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
private |
System counter reference.
Definition at line 485 of file generic_timer.hh.
Referenced by timerRead().
|
staticprivate |
Definition at line 469 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 468 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 475 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 473 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 472 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 474 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 465 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 464 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 479 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 477 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 476 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 478 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 467 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 466 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 471 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
staticprivate |
Definition at line 470 of file generic_timer.hh.
Referenced by timerRead(), and timerWrite().
|
private |
Definition at line 462 of file generic_timer.hh.
Referenced by hasEl0View(), read(), and write().
|
private |
Definition at line 461 of file generic_timer.hh.
Referenced by GenericTimerFrame(), read(), and write().
|
private |
Definition at line 506 of file generic_timer.hh.
|
private |
Definition at line 489 of file generic_timer.hh.
Referenced by getVirtOffset(), serialize(), setVirtOffset(), timerRead(), timerWrite(), and unserialize().
|
private |
Definition at line 505 of file generic_timer.hh.