#include <hsa_packet_processor.hh>

Inheritance diagram for HSAPacketProcessor:

Classes
class	CmdQueueCmdDmaEvent

class	DepSignalsReadDmaEvent

struct	dma_series_ctx
	Calls getCurrentEntry once the queueEntry has been dmaRead. More...

class	QueueProcessEvent

class	RQLEntry

class	SignalState

class	UpdateReadDispIdDmaEvent
	this event is used to update the read_disp_id field (the read pointer) of the MQD, which is how the host code knows the status of the HQD's read pointer More...

Public Types
typedef HSAPacketProcessorParams	Params

Public Types inherited from DmaDevice
typedef DmaDeviceParams	Params

Public Types inherited from PioDevice
typedef PioDeviceParams	Params

Public Types inherited from ClockedObject
typedef ClockedObjectParams	Params
	Parameters of ClockedObject. More...

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
HSAQueueDescriptor *	getQueueDesc (uint32_t queId)

class RQLEntry *	getRegdListEntry (uint32_t queId)

	HSAPacketProcessor (const Params *p)

	~HSAPacketProcessor ()

void	setDeviceQueueDesc (uint64_t hostReadIndexPointer, uint64_t basePointer, uint64_t queue_id, uint32_t size)

void	unsetDeviceQueueDesc (uint64_t queue_id)

void	setDevice (HSADevice *dev)

void	updateReadIndex (int, uint32_t)

void	getCommandsFromHost (int pid, uint32_t rl_idx)

virtual Tick	read (Packet *)

virtual Tick	write (Packet *)

virtual AddrRangeList	getAddrRanges () const
	Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to. More...

void	finishPkt (void *pkt, uint32_t rl_idx)

void	finishPkt (void *pkt)

void	schedAQLProcessing (uint32_t rl_idx)

void	schedAQLProcessing (uint32_t rl_idx, Tick delay)

Public Member Functions inherited from DmaDevice
	DmaDevice (const Params *p)

virtual	~DmaDevice ()

void	dmaWrite (Addr addr, int size, Event event, uint8_t data, uint32_t sid, uint32_t ssid, Tick delay=0)

void	dmaWrite (Addr addr, int size, Event event, uint8_t data, Tick delay=0)

void	dmaRead (Addr addr, int size, Event event, uint8_t data, uint32_t sid, uint32_t ssid, Tick delay=0)

void	dmaRead (Addr addr, int size, Event event, uint8_t data, Tick delay=0)

bool	dmaPending () const

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

unsigned int	cacheBlockSize () const

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 PioDevice
	PioDevice (const Params *p)

virtual	~PioDevice ()

const Params *	params () const

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 ClockedObject
	ClockedObject (const ClockedObjectParams *p)

const Params *	params () const

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

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

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

virtual	~SimObject ()

virtual const std::string	name () const

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 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 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...

Public Member Functions inherited from Stats::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 (Stats::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...

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Public Member Functions inherited from 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

Public Attributes
int	numHWQueues

Addr	pioAddr

Addr	pioSize

Tick	pioDelay

const Tick	pktProcessDelay

Public Attributes inherited from ClockedObject
PowerState *	powerState

Protected Types
typedef void(DmaDevice::*	DmaFnPtr) (Addr, int, Event , uint8_t , Tick)

Protected Member Functions
void	translateOrDie (Addr vaddr, Addr &paddr)

void	dmaVirt (DmaFnPtr, Addr host_addr, unsigned size, Event event, void data, Tick delay=0)

void	dmaReadVirt (Addr host_addr, unsigned size, Event event, void data, Tick delay=0)

void	dmaWriteVirt (Addr host_addr, unsigned size, Event event, void data, Tick delay=0)

Q_STATE	processPkt (void *pkt, uint32_t rl_idx, Addr host_pkt_addr)

void	displayQueueDescriptor (int pid, uint32_t rl_idx)

Protected Member Functions inherited from PioDevice
virtual Tick	read (PacketPtr pkt)=0
	Pure virtual function that the device must implement. More...

virtual Tick	write (PacketPtr pkt)=0
	Pure virtual function that the device must implement. More...

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...

Protected Member Functions inherited from 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...

Protected Attributes
HSADevice *	hsa_device

HWScheduler *	hwSchdlr

std::vector< class RQLEntry * >	regdQList

Protected Attributes inherited from DmaDevice
DmaPort	dmaPort

Protected Attributes inherited from 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 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...

Friends
class	HWScheduler

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 ()
	Gets the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)
	Serializes all the SimObjects. More...

static void	unserializeGlobals (CheckpointIn &cp)

Detailed Description

Definition at line 212 of file hsa_packet_processor.hh.

Member Typedef Documentation

◆ DmaFnPtr

typedef void(DmaDevice::* HSAPacketProcessor::DmaFnPtr) (Addr, int, Event *, uint8_t *, Tick)

protected

Definition at line 216 of file hsa_packet_processor.hh.

◆ Params

typedef HSAPacketProcessorParams HSAPacketProcessor::Params

Definition at line 311 of file hsa_packet_processor.hh.

Constructor & Destructor Documentation

◆ HSAPacketProcessor()

HSAPacketProcessor::HSAPacketProcessor ( const Params * p )

Definition at line 73 of file hsa_packet_processor.cc.

References DPRINTF, ArmISA::i, and MipsISA::p.

◆ ~HSAPacketProcessor()

HSAPacketProcessor::~HSAPacketProcessor ( )

Definition at line 85 of file hsa_packet_processor.cc.

References regdQList.

Member Function Documentation

◆ displayQueueDescriptor()

void HSAPacketProcessor::displayQueueDescriptor	(	int	pid,
		uint32_t	rl_idx
	)

protected

Definition at line 591 of file hsa_packet_processor.cc.

References DPRINTF, and regdQList.

◆ dmaReadVirt()

void HSAPacketProcessor::dmaReadVirt	(	Addr	host_addr,
		unsigned	size,
		Event *	event,
		void *	data,
		Tick	delay = `0`
	)

protected

Definition at line 193 of file hsa_packet_processor.cc.

References data, DmaDevice::dmaRead(), dmaVirt(), DPRINTF, and MipsISA::event.

Referenced by getCommandsFromHost(), and processPkt().

◆ dmaVirt()

void HSAPacketProcessor::dmaVirt	(	DmaFnPtr	dmaFn,
		Addr	host_addr,
		unsigned	size,
		Event *	event,
		void *	data,
		Tick	delay = `0`
	)

protected

Definition at line 166 of file hsa_packet_processor.cc.

References addr, curTick(), data, ChunkGenerator::done(), MipsISA::event, PAGE_SIZE, EventManager::schedule(), and translateOrDie().

Referenced by dmaReadVirt(), and dmaWriteVirt().

◆ dmaWriteVirt()

void HSAPacketProcessor::dmaWriteVirt	(	Addr	host_addr,
		unsigned	size,
		Event *	event,
		void *	data,
		Tick	delay = `0`
	)

protected

Definition at line 202 of file hsa_packet_processor.cc.

References data, dmaVirt(), DmaDevice::dmaWrite(), and MipsISA::event.

Referenced by processPkt(), and updateReadIndex().

◆ finishPkt() [1/2]

void HSAPacketProcessor::finishPkt ( void * pkt )

inline

Definition at line 328 of file hsa_packet_processor.hh.

References finishPkt().

Referenced by finishPkt().

◆ finishPkt() [2/2]

void HSAPacketProcessor::finishPkt	(	void *	pkt,
		uint32_t	rl_idx
	)

Definition at line 667 of file hsa_packet_processor.cc.

References DPRINTF, getCommandsFromHost(), HSAQueueDescriptor::isEmpty(), HSAQueueDescriptor::numElts, panic_if, HSAQueueDescriptor::readIndex, regdQList, schedAQLProcessing(), HSAQueueDescriptor::spaceUsed(), HSAQueueDescriptor::stalledOnDmaBufAvailability, updateReadIndex(), and HSAQueueDescriptor::writeIndex.

Referenced by GPUDispatcher::notifyWgCompl(), processPkt(), and GPUCommandProcessor::submitVendorPkt().

◆ getAddrRanges()

AddrRangeList HSAPacketProcessor::getAddrRanges ( ) const

virtual

Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to.

Returns: a list of non-overlapping address ranges

Implements PioDevice.

Definition at line 112 of file hsa_packet_processor.cc.

References pioAddr, pioSize, and RangeSize().

◆ getCommandsFromHost()

void HSAPacketProcessor::getCommandsFromHost	(	int	pid,
		uint32_t	rl_idx
	)

◆ getQueueDesc()

HSAQueueDescriptor* HSAPacketProcessor::getQueueDesc ( uint32_t queId )

inline

Definition at line 295 of file hsa_packet_processor.hh.

References regdQList.

Referenced by GPUCommandProcessor::initABI(), and GPUCommandProcessor::ReadDispIdOffsetDmaEvent::process().

◆ getRegdListEntry()

class RQLEntry* HSAPacketProcessor::getRegdListEntry ( uint32_t queId )

inline

Definition at line 300 of file hsa_packet_processor.hh.

References regdQList.

Referenced by HWScheduler::addQCntxt(), HWScheduler::findEmptyHWQ(), HWScheduler::isRLQIdle(), HWScheduler::removeQCntxt(), and HWScheduler::unregisterQueue().

◆ processPkt()

Q_STATE HSAPacketProcessor::processPkt	(	void *	pkt,
		uint32_t	rl_idx,
		Addr	host_pkt_addr
	)

protected

HACK: The semantics of the HSA signal is to decrement the current signal value. I'm going to cheat here and read out the value from main memory using functional access, and then just DMA the decremented value. The reason for this is that the DMASequencer does not support atomic operations.

Definition at line 305 of file hsa_packet_processor.cc.

References HSAPacketProcessor::SignalState::allRead, BLOCKED_BBIT, BLOCKED_BPKT, HSAPacketProcessor::SignalState::discardRead, dmaReadVirt(), dmaWriteVirt(), DPRINTF, fatal, finishPkt(), hsa_device, HSA_PACKET_TYPE_BARRIER_AND, HSA_PACKET_TYPE_BARRIER_OR, HSA_PACKET_TYPE_INVALID, HSA_PACKET_TYPE_KERNEL_DISPATCH, HSA_PACKET_TYPE_VENDOR_SPECIFIC, ArmISA::i, IS_BARRIER, NumSignalsPerBarrier, HSAPacketProcessor::SignalState::pendingReads, PKT_TYPE, regdQList, HSAPacketProcessor::SignalState::resetSigVals(), HSADevice::submitDispatchPkt(), HSADevice::submitVendorPkt(), PioDevice::sys, System::threads, UNBLOCKED, and HSAPacketProcessor::SignalState::values.