gem5::Malta Class Reference

Top level class for Malta Chipset emulation. More...

#include <malta.hh>

Inheritance diagram for gem5::Malta:

Public Types
typedef MaltaParams	Params
Public Types inherited from gem5::scmi::Platform
using	ProtocolList = std::unordered_map<uint8_t, Protocol *>
Public Types inherited from gem5::ClockedObject
using	Params = ClockedObjectParams
	Parameters of ClockedObject.
Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params

Public Member Functions
	Malta (const Params &p)
void	postConsoleInt () override
	Cause the cpu to post a serial interrupt to the CPU.
void	clearConsoleInt () override
	Clear a posted CPU interrupt (id=55)
void	postPciInt (int line) override
	Cause the chipset to post a cpi interrupt to the CPU.
void	clearPciInt (int line) override
	Clear a posted PCI->CPU interrupt.
void	serialize (CheckpointOut &cp) const override
	Serialize an object.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
Public Member Functions inherited from gem5::scmi::Platform
	PARAMS (ScmiPlatform)
	Platform (const Params &p)
	~Platform ()
void	handleMessage (AgentChannel *ch, Message &msg)
uint32_t	numAgents () const
	Returns the number of agents in the system.
const char *	getAgent (unsigned index) const
	Returns the name of an agent given an index.
uint32_t	numProtocols () const
	Returns the number of protocols implemented, except for the base protocol.
Port &	getPort (const std::string &if_name, PortID idx) override
	Get a port with a given name and index.
void	raiseInterrupt (const Doorbell *doorbell) override
void	clearInterrupt (const Doorbell *doorbell) override
const ProtocolList &	protocolList () const
AgentChannel *	find (PlatformChannel *platform) const
PlatformChannel *	find (AgentChannel *agent) const
Public Member Functions inherited from gem5::Scp
	Scp (const ClockedObjectParams &p)
virtual	~Scp ()
Public Member Functions inherited from gem5::ClockedObject
	ClockedObject (const ClockedObjectParams &p)
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

Public Attributes
MaltaIO *	io
	Pointer to the MaltaIO device which has the RTC.
MaltaCChip *	cchip
	Pointer to the Malta CChip.
int	intr_sum_type [Malta::Max_CPUs]
int	ipi_pending [Malta::Max_CPUs]
Public Attributes inherited from gem5::ClockedObject
PowerState *	powerState

Static Public Attributes
static const int	Max_CPUs = 64
	Max number of CPUs in a Malta.

Additional Inherited Members
Static Public Member Functions inherited from gem5::scmi::Platform
static uint32_t	protocolID (const Message &msg)
static uint32_t	messageID (const Message &msg)
static uint32_t	messageType (const Message &msg)
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.
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 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.

Detailed Description

Top level class for Malta Chipset emulation.

This structure just contains pointers to all the children so the children can commnicate to do the read work

Definition at line 54 of file malta.hh.

Member Typedef Documentation

Params

typedef MaltaParams gem5::Malta::Params

Definition at line 73 of file malta.hh.

Constructor & Destructor Documentation

Malta()

gem5::Malta::Malta

(

const Params &

p

)

Definition at line 43 of file malta.cc.

References gem5::ArmISA::i, intr_sum_type, Max_CPUs, gem5::MipsISA::p, and gem5::scmi::Platform::Platform().

Member Function Documentation

clearConsoleInt()

void gem5::Malta::clearConsoleInt ( )

override

Clear a posted CPU interrupt (id=55)

Definition at line 58 of file malta.cc.

References io.

clearPciInt()

void gem5::Malta::clearPciInt ( int line )

override

Clear a posted PCI->CPU interrupt.

Definition at line 71 of file malta.cc.

References panic.

postConsoleInt()

void gem5::Malta::postConsoleInt ( )

override

Cause the cpu to post a serial interrupt to the CPU.

Definition at line 51 of file malta.cc.

References io.

postPciInt()

void gem5::Malta::postPciInt ( int line )

override

Cause the chipset to post a cpi interrupt to the CPU.

Definition at line 65 of file malta.cc.

References panic.

serialize()

void gem5::Malta::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::ClockedObject.

Definition at line 77 of file malta.cc.

References intr_sum_type, Max_CPUs, and SERIALIZE_ARRAY.

unserialize()

void gem5::Malta::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::ClockedObject.

Definition at line 83 of file malta.cc.

References intr_sum_type, Max_CPUs, and UNSERIALIZE_ARRAY.

Member Data Documentation

cchip

MaltaCChip* gem5::Malta::cchip

Pointer to the Malta CChip.

The chip contains some configuration information and all the interrupt mask and status registers

Definition at line 67 of file malta.hh.

intr_sum_type

int gem5::Malta::intr_sum_type[Malta::Max_CPUs]

Definition at line 69 of file malta.hh.

Referenced by Malta(), serialize(), and unserialize().

io

MaltaIO* gem5::Malta::io

Pointer to the MaltaIO device which has the RTC.

Definition at line 61 of file malta.hh.

Referenced by clearConsoleInt(), and postConsoleInt().

ipi_pending

int gem5::Malta::ipi_pending[Malta::Max_CPUs]

Definition at line 70 of file malta.hh.

Max_CPUs

const int gem5::Malta::Max_CPUs = 64

static

Max number of CPUs in a Malta.

Definition at line 58 of file malta.hh.

Referenced by gem5::MaltaCChip::clearIntr(), Malta(), gem5::MaltaCChip::postIntr(), serialize(), and unserialize().

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

• dev/mips/malta.hh
• dev/mips/malta.cc