#include <DMASequencer.hh>

Inheritance diagram for gem5::ruby::DMASequencer:

Public Types
typedef DMASequencerParams	Params

Public Types inherited from gem5::ruby::RubyPort
typedef RubyPortParams	Params

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

Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params

Public Member Functions
	DMASequencer (const Params &)

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

RequestStatus	makeRequest (PacketPtr pkt) override

bool	busy ()

int	outstandingCount () const override

bool	isDeadlockEventScheduled () const override

void	descheduleDeadlockEvent () override

void	dataCallback (const DataBlock &dblk, const Addr &addr)

void	ackCallback (const Addr &addr)

void	atomicCallback (const DataBlock &dblk, const Addr &addr)

void	recordRequestType (DMASequencerRequestType requestType)

Public Member Functions inherited from gem5::ruby::RubyPort
	RubyPort (const Params &p)

virtual	~RubyPort ()

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

Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID) override
	Get a port with a given name and index.

void	setController (AbstractController *_cntrl)

uint32_t	getId ()

DrainState	drain () override
	Draining is the process of clearing out the states of SimObjects.These are the SimObjects that are partially executed or are partially in flight.

bool	isCPUSequencer ()

virtual int	functionalWrite (Packet *func_pkt)

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	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 (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.

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

Private Types
typedef std::unordered_map< Addr, DMARequest >	RequestTable

Private Member Functions
void	issueNext (const Addr &addr)

Private Attributes
uint64_t	m_data_block_mask

RequestTable	m_RequestTable

int	m_outstanding_count

int	m_max_outstanding_requests

Additional Inherited Members
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

Protected Member Functions inherited from gem5::ruby::RubyPort
void	trySendRetries ()

void	ruby_hit_callback (PacketPtr pkt)

void	ruby_unaddressed_callback (PacketPtr pkt)

void	ruby_stale_translation_callback (Addr txnId)

void	testDrainComplete ()

void	ruby_eviction_callback (Addr address)

bool	recvTimingResp (PacketPtr pkt, PortID request_port_id)
	Called by the PIO port when receiving a timing response.

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::ruby::RubyPort
RubySystem *	m_ruby_system

uint32_t	m_version

AbstractController *	m_controller

MessageBuffer *	m_mandatory_q_ptr

bool	m_usingRubyTester

System *	system

std::vector< MemResponsePort * >	response_ports

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

Definition at line 62 of file DMASequencer.hh.

Member Typedef Documentation

◆ Params

typedef DMASequencerParams gem5::ruby::DMASequencer::Params

Definition at line 65 of file DMASequencer.hh.

◆ RequestTable

typedef std::unordered_map<Addr, DMARequest> gem5::ruby::DMASequencer::RequestTable

private

Definition at line 88 of file DMASequencer.hh.

Constructor & Destructor Documentation

◆ DMASequencer()

gem5::ruby::DMASequencer::DMASequencer ( const Params & p )

Definition at line 66 of file DMASequencer.cc.

Member Function Documentation

◆ ackCallback()

void gem5::ruby::DMASequencer::ackCallback ( const Addr & addr )

Definition at line 239 of file DMASequencer.cc.

References issueNext(), and m_RequestTable.

◆ atomicCallback()

void gem5::ruby::DMASequencer::atomicCallback	(	const DataBlock &	dblk,
		const Addr &	addr )

Definition at line 246 of file DMASequencer.cc.

References gem5::ruby::DataBlock::getData(), gem5::Packet::getPtr(), gem5::Packet::getSize(), gem5::ArmISA::i, m_data_block_mask, m_outstanding_count, m_RequestTable, gem5::ArmISA::offset, gem5::ruby::DMARequest::pkt, gem5::ruby::RubyPort::ruby_hit_callback(), and gem5::ruby::DMARequest::start_paddr.

◆ busy()

bool gem5::ruby::DMASequencer::busy ( )

inline

Definition at line 71 of file DMASequencer.hh.

References m_outstanding_count.

◆ dataCallback()

void gem5::ruby::DMASequencer::dataCallback	(	const DataBlock &	dblk,
		const Addr &	addr )

Definition at line 219 of file DMASequencer.cc.

References gem5::ruby::DMARequest::bytes_completed, gem5::ruby::DMARequest::bytes_issued, gem5::ruby::DMARequest::data, gem5::ruby::DataBlock::getData(), gem5::ArmISA::i, issueNext(), gem5::ArmISA::len, m_data_block_mask, m_RequestTable, gem5::ArmISA::offset, gem5::ruby::DMARequest::start_paddr, and gem5::ruby::DMARequest::write.

◆ descheduleDeadlockEvent()

void gem5::ruby::DMASequencer::descheduleDeadlockEvent ( )

inlineoverridevirtual

Implements gem5::ruby::RubyPort.

Definition at line 74 of file DMASequencer.hh.

◆ init()

void gem5::ruby::DMASequencer::init ( )

overridevirtual

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 gem5::SimObject.

Definition at line 73 of file DMASequencer.cc.

References gem5::ruby::RubySystem::getBlockSizeBits(), gem5::ruby::RubyPort::init(), m_data_block_mask, and gem5::ArmISA::mask.

◆ isDeadlockEventScheduled()

bool gem5::ruby::DMASequencer::isDeadlockEventScheduled ( ) const

inlineoverridevirtual

Implements gem5::ruby::RubyPort.

Definition at line 73 of file DMASequencer.hh.

◆ issueNext()

void gem5::ruby::DMASequencer::issueNext ( const Addr & addr )

private

◆ makeRequest()

RequestStatus gem5::ruby::DMASequencer::makeRequest ( PacketPtr pkt )

overridevirtual

◆ outstandingCount()

int gem5::ruby::DMASequencer::outstandingCount ( ) const

inlineoverridevirtual

Implements gem5::ruby::RubyPort.

Definition at line 72 of file DMASequencer.hh.

References m_outstanding_count.

◆ recordRequestType()

void gem5::ruby::DMASequencer::recordRequestType ( DMASequencerRequestType requestType )

Definition at line 265 of file DMASequencer.cc.

References DPRINTF.

Member Data Documentation

◆ m_data_block_mask

uint64_t gem5::ruby::DMASequencer::m_data_block_mask

private

Definition at line 86 of file DMASequencer.hh.

Referenced by atomicCallback(), dataCallback(), init(), issueNext(), and makeRequest().

◆ m_max_outstanding_requests

int gem5::ruby::DMASequencer::m_max_outstanding_requests

private

Definition at line 92 of file DMASequencer.hh.

Referenced by issueNext(), and makeRequest().

◆ m_outstanding_count

int gem5::ruby::DMASequencer::m_outstanding_count

private

Definition at line 91 of file DMASequencer.hh.

Referenced by atomicCallback(), busy(), issueNext(), makeRequest(), and outstandingCount().

◆ m_RequestTable

RequestTable gem5::ruby::DMASequencer::m_RequestTable

private

Definition at line 89 of file DMASequencer.hh.

Referenced by ackCallback(), atomicCallback(), dataCallback(), issueNext(), and makeRequest().

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

mem/ruby/system/DMASequencer.hh
mem/ruby/system/DMASequencer.cc

Public Types

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

◆ RequestTable

Constructor & Destructor Documentation

◆ DMASequencer()

Member Function Documentation

◆ ackCallback()

◆ atomicCallback()

◆ busy()

◆ dataCallback()

◆ descheduleDeadlockEvent()

◆ init()

◆ isDeadlockEventScheduled()

◆ issueNext()

◆ makeRequest()

◆ outstandingCount()

◆ recordRequestType()

Member Data Documentation

◆ m_data_block_mask

◆ m_max_outstanding_requests

◆ m_outstanding_count

◆ m_RequestTable