#include <pagetable_walker.hh>

Inheritance diagram for gem5::VegaISA::Walker:

Classes
class	WalkerPort

struct	WalkerSenderState

class	WalkerState

Public Member Functions
void	startTiming (PacketPtr pkt, Addr base, Addr vaddr, BaseMMU::Mode mode)

Fault	startFunctional (Addr base, Addr vaddr, PageTableEntry &pte, unsigned &logBytes, BaseMMU::Mode mode)

Fault	startFunctional (Addr base, Addr &addr, unsigned &logBytes, BaseMMU::Mode mode, bool &isSystem)

Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID) override
	gem5 methods

Addr	getBaseAddr () const

void	setBaseAddr (Addr ta)

void	setDevRequestor (RequestorID mid)

RequestorID	getDevRequestor () const

void	invalidatePWC ()

void	setTLB (GpuTLB *_tlb)

	Walker (const VegaPagetableWalkerParams &p)

Public Member Functions inherited from gem5::ClockedObject
	ClockedObject (const ClockedObjectParams &p)

void	serialize (CheckpointOut &cp) const override
	Serialize an object.

void	unserialize (CheckpointIn &cp) override
	Unserialize an object.

Public Member Functions inherited from gem5::SimObject
const Params &	params () const

	SimObject (const Params &p)

virtual	~SimObject ()

virtual void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected.

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint.

virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint.

virtual void	regProbePoints ()
	Register probe points for this object.

virtual void	regProbeListeners ()
	Register probe listeners for this object.

ProbeManager *	getProbeManager ()
	Get the probe manager for this object.

virtual void	startup ()
	startup() is the final initialization call before simulation.

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining.

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes.

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers.

void	serialize (CheckpointOut &cp) const override
	Serialize an object.

void	unserialize (CheckpointIn &cp) override
	Unserialize an object.

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.

void	setCurTick (Tick newVal)

	EventManager (EventManager &em)
	Event manger manages events in the event queue.

	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.

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.

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.

virtual void	notifyFork ()
	Notify a child process of a fork.

Public Member Functions inherited from gem5::statistics::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group.

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters.

virtual void	resetStats ()
	Callback to reset stats.

virtual void	preDumpStats ()
	Callback before stats are dumped.

void	addStat (statistics::Info *info)
	Register a stat with this group.

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object.

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object.

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block.

const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group.

void	mergeStatGroup (Group *block)
	Merge the contents (stats & children) of a block to this block.

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Public Member Functions inherited from gem5::Named
	Named (std::string_view 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.

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.

Cycles	curCycle () const
	Determine the current cycle, corresponding to a tick aligned to a clock edge.

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.

uint64_t	frequency () const

Tick	clockPeriod () const

double	voltage () const

Cycles	ticksToCycles (Tick t) const

Tick	cyclesToTicks (Cycles c) const

Protected Member Functions
void	recvTimingResp (PacketPtr pkt)

void	recvReqRetry ()

bool	sendTiming (WalkerState *sendingState, PacketPtr pkt)

void	walkerResponse (WalkerState *state, VegaTlbEntry &entry, PacketPtr pkt)

Protected Member Functions inherited from gem5::Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain.

void	signalDrainDone () const
	Signal that an object is drained.

Protected Member Functions inherited from gem5::Clocked
	Clocked (ClockDomain &clk_domain)
	Create a clocked object and set the clock domain based on the parameters.

	Clocked (Clocked &)=delete

Clocked &	operator= (Clocked &)=delete

virtual	~Clocked ()
	Virtual destructor due to inheritance.

void	resetClock () const
	Reset the object's clock using the current global tick value.

virtual void	clockPeriodUpdated ()
	A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed.

Protected Attributes
PageWalkCache	pwc

WalkerPort	port

std::list< WalkerState * >	currStates

WalkerState	funcState

bool	enable_pwc

GpuTLB *	tlb

RequestorID	requestorId

Addr	baseAddr

RequestorID	deviceRequestorId

System *	system

Protected Attributes inherited from gem5::SimObject
const SimObjectParams &	_params
	Cached copy of the object parameters.

Protected Attributes inherited from gem5::EventManager
EventQueue *	eventq
	A pointer to this object's event queue.

Friends
class	WalkerPort

class	WalkerState

Additional Inherited Members
Public Types inherited from gem5::ClockedObject
using	Params = ClockedObjectParams
	Parameters of ClockedObject.

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.

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it.

static void	setSimObjectResolver (SimObjectResolver *resolver)
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

static SimObjectResolver *	getSimObjectResolver ()
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.

static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Public Attributes inherited from gem5::ClockedObject
PowerState *	powerState

Detailed Description

Definition at line 55 of file pagetable_walker.hh.

Constructor & Destructor Documentation

◆ Walker()

gem5::VegaISA::Walker::Walker ( const VegaPagetableWalkerParams & p )

inline

Definition at line 201 of file pagetable_walker.hh.

References gem5::ClockedObject::ClockedObject(), deviceRequestorId, DPRINTF, enable_pwc, funcState, gem5::Named::name(), gem5::VegaISA::p, port, pwc, requestorId, system, and tlb.

Referenced by gem5::VegaISA::Walker::WalkerPort::WalkerPort().

Member Function Documentation

◆ getBaseAddr()

Addr gem5::VegaISA::Walker::getBaseAddr ( ) const

inline

Definition at line 165 of file pagetable_walker.hh.

References baseAddr.

◆ getDevRequestor()

RequestorID gem5::VegaISA::Walker::getDevRequestor ( ) const

inline

Definition at line 169 of file pagetable_walker.hh.

References deviceRequestorId.

◆ getPort()

Port & gem5::VegaISA::Walker::getPort	(	const std::string &	if_name,
		PortID	idx = InvalidPortID )

overridevirtual

gem5 methods

Reimplemented from gem5::SimObject.

Definition at line 522 of file pagetable_walker.cc.

References gem5::SimObject::getPort(), and port.

◆ invalidatePWC()

void gem5::VegaISA::Walker::invalidatePWC ( )

Definition at line 438 of file pagetable_walker.cc.

References gem5::ArmISA::i, and pwc.

◆ recvReqRetry()

void gem5::VegaISA::Walker::recvReqRetry ( )

protected

Definition at line 454 of file pagetable_walker.cc.

References currStates, gem5::VegaISA::Walker::WalkerState::isRetrying(), and gem5::VegaISA::Walker::WalkerState::retry().

◆ recvTimingResp()

void gem5::VegaISA::Walker::recvTimingResp ( PacketPtr pkt )

protected

Definition at line 420 of file pagetable_walker.cc.

References DPRINTF, enable_pwc, gem5::Packet::getAddr(), gem5::Packet::getLE(), gem5::Packet::popSenderState(), pwc, gem5::safe_cast(), gem5::VegaISA::Walker::WalkerSenderState::senderWalk, and gem5::VegaISA::Walker::WalkerState::startWalk().

Referenced by sendTiming().

◆ sendTiming()

bool gem5::VegaISA::Walker::sendTiming	(	WalkerState *	sendingState,
		PacketPtr	pkt )

protected

Definition at line 382 of file pagetable_walker.cc.

References DPRINTF, gem5::Packet::getAddr(), gem5::Packet::popSenderState(), port, gem5::VegaISA::PWCEntry::pteEntry, gem5::Packet::pushSenderState(), pwc, recvTimingResp(), and gem5::Packet::setLE().

◆ setBaseAddr()

void gem5::VegaISA::Walker::setBaseAddr ( Addr ta )

inline

Definition at line 166 of file pagetable_walker.hh.

References baseAddr, and gem5::MipsISA::ta.

◆ setDevRequestor()

void gem5::VegaISA::Walker::setDevRequestor ( RequestorID mid )

inline

Definition at line 168 of file pagetable_walker.hh.

References deviceRequestorId.

◆ setTLB()

void gem5::VegaISA::Walker::setTLB ( GpuTLB * _tlb )

inline

Definition at line 195 of file pagetable_walker.hh.

References tlb.

◆ startFunctional() [1/2]

Fault gem5::VegaISA::Walker::startFunctional	(	Addr	base,
		Addr &	addr,
		unsigned &	logBytes,
		BaseMMU::Mode	mode,
		bool &	isSystem )

Definition at line 49 of file pagetable_walker.cc.

References gem5::X86ISA::addr, gem5::RiscvISA::base, gem5::ArmISA::mask, gem5::ArmISA::mode, gem5::VegaISA::PageShift, startFunctional(), and gem5::MipsISA::vaddr.

◆ startFunctional() [2/2]

Fault gem5::VegaISA::Walker::startFunctional	(	Addr	base,
		Addr	vaddr,
		PageTableEntry &	pte,
		unsigned &	logBytes,
		BaseMMU::Mode	mode )

Definition at line 62 of file pagetable_walker.cc.

References gem5::RiscvISA::base, DPRINTF, funcState, gem5::ArmISA::mode, and gem5::MipsISA::vaddr.

Referenced by startFunctional().

◆ startTiming()

void gem5::VegaISA::Walker::startTiming	(	PacketPtr	pkt,
		Addr	base,
		Addr	vaddr,
		BaseMMU::Mode	mode )

Definition at line 107 of file pagetable_walker.cc.

References gem5::RiscvISA::base, currStates, DPRINTF, gem5::VegaISA::Walker::WalkerState::initState(), gem5::ArmISA::mode, gem5::VegaISA::PageShift, gem5::VegaISA::Walker::WalkerState::startWalk(), gem5::MipsISA::vaddr, and WalkerState.

◆ walkerResponse()

void gem5::VegaISA::Walker::walkerResponse	(	WalkerState *	state,
		VegaTlbEntry &	entry,
		PacketPtr	pkt )

protected

Definition at line 469 of file pagetable_walker.cc.

References tlb.

Friends And Related Symbol Documentation

◆ WalkerPort

friend class WalkerPort

friend

Definition at line 76 of file pagetable_walker.hh.

◆ WalkerState

friend class WalkerState

friend

Definition at line 140 of file pagetable_walker.hh.

Referenced by startTiming().

Member Data Documentation

◆ baseAddr

Addr gem5::VegaISA::Walker::baseAddr

protected

Definition at line 180 of file pagetable_walker.hh.

Referenced by getBaseAddr(), gem5::VegaISA::Walker::WalkerState::initState(), and setBaseAddr().

◆ currStates

std::list<WalkerState *> gem5::VegaISA::Walker::currStates

protected

Definition at line 143 of file pagetable_walker.hh.

Referenced by recvReqRetry(), and startTiming().

◆ deviceRequestorId

RequestorID gem5::VegaISA::Walker::deviceRequestorId

protected

Definition at line 181 of file pagetable_walker.hh.

Referenced by getDevRequestor(), setDevRequestor(), and Walker().

◆ enable_pwc

bool gem5::VegaISA::Walker::enable_pwc

protected

Definition at line 174 of file pagetable_walker.hh.

Referenced by recvTimingResp(), and Walker().

◆ funcState

WalkerState gem5::VegaISA::Walker::funcState

protected

Definition at line 145 of file pagetable_walker.hh.

Referenced by startFunctional(), and Walker().

◆ port

WalkerPort gem5::VegaISA::Walker::port

protected

Definition at line 77 of file pagetable_walker.hh.

Referenced by getPort(), sendTiming(), and Walker().

◆ pwc

PageWalkCache gem5::VegaISA::Walker::pwc

protected

Definition at line 59 of file pagetable_walker.hh.

Referenced by invalidatePWC(), recvTimingResp(), sendTiming(), and Walker().

◆ requestorId

RequestorID gem5::VegaISA::Walker::requestorId

protected

Definition at line 177 of file pagetable_walker.hh.

Referenced by Walker().

◆ system

System* gem5::VegaISA::Walker::system

protected

Definition at line 192 of file pagetable_walker.hh.

Referenced by Walker().

◆ tlb

GpuTLB* gem5::VegaISA::Walker::tlb

protected

Definition at line 176 of file pagetable_walker.hh.

Referenced by setTLB(), Walker(), and walkerResponse().

The documentation for this class was generated from the following files:

arch/amdgpu/vega/pagetable_walker.hh
arch/amdgpu/vega/pagetable_walker.cc

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Walker()

Member Function Documentation

◆ getBaseAddr()

◆ getDevRequestor()

◆ getPort()

◆ invalidatePWC()

◆ recvReqRetry()

◆ recvTimingResp()

◆ sendTiming()

◆ setBaseAddr()

◆ setDevRequestor()

◆ setTLB()

◆ startFunctional() [1/2]

◆ startFunctional() [2/2]

◆ startTiming()

◆ walkerResponse()

Friends And Related Symbol Documentation

◆ WalkerPort

◆ WalkerState

Member Data Documentation

◆ baseAddr

◆ currStates

◆ deviceRequestorId

◆ enable_pwc

◆ funcState

◆ port

◆ pwc

◆ requestorId

◆ system

◆ tlb