#include <hsa_driver.hh>

Inheritance diagram for HSADriver:

Classes
class	DriverWakeupEvent

class	EventList

class	EventTableEntry

Public Types
typedef class EventTableEntry	ETEntry

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	HSADriver (const HSADriverParams &p)

int	open (ThreadContext *tc, int mode, int flags)
	Create an FD entry for the KFD inside of the owning process. More...

Addr	mmap (ThreadContext *tc, Addr start, uint64_t length, int prot, int tgt_flags, int tgt_fd, off_t offset)
	Currently, mmap() will simply setup a mapping for the associated device's packet processor's doorbells and creates the event page. More...

virtual void	signalWakeupEvent (uint32_t event_id)

Public Member Functions inherited from EmulatedDriver
	EmulatedDriver (const EmulatedDriverParams &p)

bool	match (const std::string &s) const
	Check for a match with this driver's filename. More...

virtual int	ioctl (ThreadContext *tc, unsigned req, Addr buf)=0
	Abstract method, invoked when the user program calls ioctl() on the file descriptor returned by a previous open(). More...

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

	SimObject (const Params &p)

virtual	~SimObject ()

virtual const std::string	name () const

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

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

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

Protected Member Functions
void	allocateQueue (ThreadContext *tc, Addr ioc_buf)
	Forward relevant parameters to packet processor; queueID is used to link doorbell. 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 Attributes
Addr	eventPage

uint32_t	eventSlotIndex

std::unordered_map< uint32_t, ETEntry >	ETable

std::unordered_map< ThreadContext *, EventList >	TCEvents

HSADevice *	device
	HSA agent (device) that is controled by this driver. More...

uint32_t	queueId

Protected Attributes inherited from EmulatedDriver
const std::string &	filename
	filename for opening this driver (under /dev) 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...

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 61 of file hsa_driver.hh.

Member Typedef Documentation

◆ ETEntry

typedef class EventTableEntry HSADriver::ETEntry

Definition at line 108 of file hsa_driver.hh.

Constructor & Destructor Documentation

◆ HSADriver()

HSADriver::HSADriver ( const HSADriverParams & p )

Definition at line 47 of file hsa_driver.cc.

Member Function Documentation

◆ allocateQueue()

void HSADriver::allocateQueue	(	ThreadContext *	tc,
		Addr	ioc_buf
	)

protected

Forward relevant parameters to packet processor; queueID is used to link doorbell.

The queueIDs are not re-used in current implementation, and we allocate only one page (4096 bytes) for doorbells, so check if this queue ID can be mapped into that page.

Definition at line 128 of file hsa_driver.cc.

References device, fatal, HSADevice::hsaPacketProc(), SimObject::name(), kfd_ioctl_create_queue_args::queue_id, queueId, kfd_ioctl_create_queue_args::read_pointer_address, kfd_ioctl_create_queue_args::ring_base_address, kfd_ioctl_create_queue_args::ring_size, and HSAPacketProcessor::setDeviceQueueDesc().

Referenced by GPUComputeDriver::ioctl().