gem5::PM4Queue Class Reference

Class defining a PM4 queue. More...

#include <pm4_queues.hh>

Public Member Functions
	PM4Queue ()
	PM4Queue (int id, QueueDesc *queue, Addr offset)
	PM4Queue (int id, QueueDesc *queue, Addr offset, PM4MapQueues *pkt)
QueueDesc *	getMQD ()
int	id ()
Addr	mqdBase ()
Addr	base ()
Addr	ibBase ()
Addr	rptr ()
Addr	wptr ()
Addr	getRptr ()
Addr	getWptr ()
Addr	offset ()
bool	processing ()
bool	ib ()
void	id (int value)
void	base (Addr value)
void	ibBase (Addr value)
void	fastforwardRptr ()
	It seems that PM4 nop packets with count 0x3fff, not only do not consider the count value, they also fast forward the read pointer. More...
void	incRptr (Addr value)
void	rptr (Addr value)
void	wptr (Addr value)
void	offset (Addr value)
void	processing (bool value)
void	ib (bool value)
uint32_t	me ()
uint32_t	pipe ()
uint32_t	queue ()
bool	privileged ()

Private Attributes
int	_id
QueueDesc *	q
Addr	_wptr
	Most important fields of a PM4 queue are stored in the queue descriptor (i.e., QueueDesc). More...
Addr	_ibWptr
Addr	_offset
bool	_processing
bool	_ib
PM4MapQueues *	_pkt

Detailed Description

Class defining a PM4 queue.

Definition at line 361 of file pm4_queues.hh.

Constructor & Destructor Documentation

PM4Queue() [1/3]

gem5::PM4Queue::PM4Queue ( )

inline

Definition at line 380 of file pm4_queues.hh.

PM4Queue() [2/3]

gem5::PM4Queue::PM4Queue ( int  id, QueueDesc *  queue, Addr  offset  )

inline

Definition at line 382 of file pm4_queues.hh.

PM4Queue() [3/3]

gem5::PM4Queue::PM4Queue ( int  id, QueueDesc *  queue, Addr  offset, PM4MapQueues *  pkt  )

inline

Definition at line 385 of file pm4_queues.hh.

Member Function Documentation

base() [1/2]

Addr gem5::PM4Queue::base ( )

inline

Definition at line 392 of file pm4_queues.hh.

References gem5::GEM5_PACKED::base, and q.

base() [2/2]

void gem5::PM4Queue::base ( Addr  value )

inline

Definition at line 428 of file pm4_queues.hh.

References gem5::GEM5_PACKED::base, and q.

fastforwardRptr()

void gem5::PM4Queue::fastforwardRptr ( )

inline

It seems that PM4 nop packets with count 0x3fff, not only do not consider the count value, they also fast forward the read pointer.

Without proper sync packets this can potentially be dangerous, since more useful packets can be enqueued in the time between nop enqueu and nop processing.

Definition at line 439 of file pm4_queues.hh.

References _ibWptr, _wptr, ib(), gem5::GEM5_PACKED::ibRptr, q, and gem5::GEM5_PACKED::rptr.

getMQD()

QueueDesc* gem5::PM4Queue::getMQD ( )

inline

Definition at line 389 of file pm4_queues.hh.

References q.

getRptr()

Addr gem5::PM4Queue::getRptr ( )

inline

Definition at line 410 of file pm4_queues.hh.

References ib(), gem5::GEM5_PACKED::ibRptr, q, and gem5::GEM5_PACKED::rptr.

getWptr()

Addr gem5::PM4Queue::getWptr ( )

inline

Definition at line 417 of file pm4_queues.hh.

References _ibWptr, _wptr, and ib().

ib() [1/2]

bool gem5::PM4Queue::ib ( )

inline

Definition at line 425 of file pm4_queues.hh.

References _ib.

Referenced by fastforwardRptr(), getRptr(), getWptr(), incRptr(), rptr(), and wptr().

ib() [2/2]

void gem5::PM4Queue::ib ( bool  value )

inline

Definition at line 468 of file pm4_queues.hh.

References _ib.

ibBase() [1/2]

Addr gem5::PM4Queue::ibBase ( )

inline

Definition at line 393 of file pm4_queues.hh.

References gem5::GEM5_PACKED::ibBase, and q.

ibBase() [2/2]

void gem5::PM4Queue::ibBase ( Addr  value )

inline

Definition at line 429 of file pm4_queues.hh.

References gem5::GEM5_PACKED::ibBase, and q.

id() [1/2]

int gem5::PM4Queue::id ( )

inline

Definition at line 390 of file pm4_queues.hh.

References _id.

Referenced by gem5::PM4PacketProcessor::processMQD().

id() [2/2]

void gem5::PM4Queue::id ( int  value )

inline

Definition at line 427 of file pm4_queues.hh.

References _id.

incRptr()

void gem5::PM4Queue::incRptr ( Addr  value )

inline

Definition at line 446 of file pm4_queues.hh.

References ib(), gem5::GEM5_PACKED::ibRptr, q, and gem5::GEM5_PACKED::rptr.

me()

uint32_t gem5::PM4Queue::me ( )

inline

Definition at line 469 of file pm4_queues.hh.

References _pkt, and gem5::GEM5_PACKED::me.

mqdBase()

Addr gem5::PM4Queue::mqdBase ( )

inline

Definition at line 391 of file pm4_queues.hh.

References gem5::GEM5_PACKED::mqdBase, and q.

offset() [1/2]

Addr gem5::PM4Queue::offset ( )

inline

Definition at line 423 of file pm4_queues.hh.

References _offset.

offset() [2/2]

void gem5::PM4Queue::offset ( Addr  value )

inline

Definition at line 466 of file pm4_queues.hh.

References _offset.

pipe()

uint32_t gem5::PM4Queue::pipe ( )

inline

Definition at line 470 of file pm4_queues.hh.

References _pkt, and gem5::GEM5_PACKED::pipe.

privileged()

bool gem5::PM4Queue::privileged ( )

inline

Definition at line 472 of file pm4_queues.hh.

References _pkt, and gem5::GEM5_PACKED::queueSel.

processing() [1/2]

bool gem5::PM4Queue::processing ( )

inline

Definition at line 424 of file pm4_queues.hh.

References _processing.

processing() [2/2]

void gem5::PM4Queue::processing ( bool  value )

inline

Definition at line 467 of file pm4_queues.hh.

References _processing.

queue()

uint32_t gem5::PM4Queue::queue ( )

inline

Definition at line 471 of file pm4_queues.hh.

References _pkt, and gem5::GEM5_PACKED::queueSlot.

rptr() [1/2]

Addr gem5::PM4Queue::rptr ( )

inline

Definition at line 396 of file pm4_queues.hh.

References gem5::GEM5_PACKED::base, ib(), gem5::GEM5_PACKED::ibBase, gem5::GEM5_PACKED::ibRptr, q, and gem5::GEM5_PACKED::rptr.

rptr() [2/2]

void gem5::PM4Queue::rptr ( Addr  value )

inline

Definition at line 453 of file pm4_queues.hh.

References ib(), gem5::GEM5_PACKED::ibRptr, q, and gem5::GEM5_PACKED::rptr.

wptr() [1/2]

Addr gem5::PM4Queue::wptr ( )

inline

Definition at line 403 of file pm4_queues.hh.

References _ibWptr, _wptr, gem5::GEM5_PACKED::base, ib(), gem5::GEM5_PACKED::ibBase, and q.

wptr() [2/2]

void gem5::PM4Queue::wptr ( Addr  value )

inline

Definition at line 460 of file pm4_queues.hh.

References _ibWptr, _wptr, and ib().

Member Data Documentation

_ib

bool gem5::PM4Queue::_ib

private

Definition at line 377 of file pm4_queues.hh.

Referenced by ib().

_ibWptr

Addr gem5::PM4Queue::_ibWptr

private

Definition at line 374 of file pm4_queues.hh.

Referenced by fastforwardRptr(), getWptr(), and wptr().

_id

int gem5::PM4Queue::_id

private

Definition at line 363 of file pm4_queues.hh.

Referenced by id().

_offset

Addr gem5::PM4Queue::_offset

private

Definition at line 375 of file pm4_queues.hh.

Referenced by offset().

_pkt

PM4MapQueues* gem5::PM4Queue::_pkt

private

Definition at line 378 of file pm4_queues.hh.

Referenced by me(), pipe(), privileged(), and queue().

_processing

bool gem5::PM4Queue::_processing

private

Definition at line 376 of file pm4_queues.hh.

Referenced by processing().

_wptr

Addr gem5::PM4Queue::_wptr

private

Most important fields of a PM4 queue are stored in the queue descriptor (i.e., QueueDesc).

However, since the write pointers are communicated through the doorbell value, we will add separate atributes for them.

Definition at line 373 of file pm4_queues.hh.

Referenced by fastforwardRptr(), getWptr(), and wptr().

q

QueueDesc* gem5::PM4Queue::q

private

Definition at line 366 of file pm4_queues.hh.

Referenced by base(), fastforwardRptr(), getMQD(), getRptr(), ibBase(), incRptr(), mqdBase(), rptr(), and wptr().

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

• dev/amdgpu/pm4_queues.hh