LocalApicTlbShootdown Class Reference

#include <LocalApicTlbShootdown.h>

Collaboration diagram for LocalApicTlbShootdown:

Classes
struct	Service

Public Member Functions
bool	tryAcquire ()
bool	publish (uintptr_t address, size_t processor, size_t processorCount, uint64_t expected=~uint64_t(0))
bool	beginService (size_t processor, Service &service)
bool	finishService (Service &service)
bool	complete () const
void	close ()
bool	drained () const
bool	release ()
bool	owned () const
bool	retainedClosed () const
size_t	generation () const
uintptr_t	address () const
uint64_t	expectedMask () const
uint64_t	acknowledgedMask () const
size_t	servicing () const

Static Public Member Functions
static constexpr bool	supportsContext (ExecutionContext context)
static constexpr bool	onlyCurrentProcessorServiceable (size_t processorCount, size_t terminalProcessors)

Static Public Attributes
static constexpr size_t	MaxProcessors = 64

Private Member Functions
bool	revalidateServiceClaim (size_t processor, size_t generation, uintptr_t address, size_t serving, size_t acknowledged, Service &service)
bool	selectNextGeneration (size_t &generation) const
uint64_t	acknowledgedMask (size_t generation) const
bool	allAcknowledged (size_t generation, uint64_t expected) const

Static Private Member Functions
static constexpr bool	isServing (size_t token)
static constexpr size_t	acknowledgedToken (size_t generation)
static constexpr size_t	servingToken (size_t generation)
static bool	processorMask (size_t processorCount, uint64_t &mask)

Private Attributes
Atomic< bool >	m_Owner
Atomic< size_t >	m_Generation
Atomic< size_t >	m_NextGeneration
Atomic< uintptr_t >	m_Address
Atomic< uint64_t >	m_Expected
Atomic< size_t >	m_ProcessorState [MaxProcessors]

Static Private Attributes
static constexpr size_t	ServingBit = 1
static constexpr size_t	MaxGeneration = ~size_t(0) >> 1

Friends
class	LocalApicTlbShootdownTestPeer

Detailed Description

Allocation-free publication state for one synchronous TLB shootdown.

A processor which is spinning with maskable interrupts disabled can service the published transaction explicitly. Service leases keep a completed generation from being reused while an old observer can still acknowledge it.

Definition at line 272 of file LocalApicTlbShootdown.h.

Constructor & Destructor Documentation

LocalApicTlbShootdown()

LocalApicTlbShootdown::LocalApicTlbShootdown ( )

inline

Definition at line 291 of file LocalApicTlbShootdown.h.

Member Function Documentation

acknowledgedMask() [1/2]

uint64_t LocalApicTlbShootdown::acknowledgedMask ( ) const

inline

Definition at line 428 of file LocalApicTlbShootdown.h.

acknowledgedMask() [2/2]

uint64_t LocalApicTlbShootdown::acknowledgedMask ( size_t  generation ) const

inlineprivate

Definition at line 495 of file LocalApicTlbShootdown.h.

acknowledgedToken()

static constexpr size_t LocalApicTlbShootdown::acknowledgedToken ( size_t  generation )

inlinestaticconstexprprivate

Definition at line 453 of file LocalApicTlbShootdown.h.

address()

uintptr_t LocalApicTlbShootdown::address ( ) const

inline

Definition at line 420 of file LocalApicTlbShootdown.h.

allAcknowledged()

bool LocalApicTlbShootdown::allAcknowledged ( size_t  generation, uint64_t  expected  ) const

inlineprivate

Definition at line 506 of file LocalApicTlbShootdown.h.

beginService()

bool LocalApicTlbShootdown::beginService ( size_t  processor, Service &  service  )

inline

Definition at line 341 of file LocalApicTlbShootdown.h.

close()

void LocalApicTlbShootdown::close ( )

inline

Definition at line 388 of file LocalApicTlbShootdown.h.

complete()

bool LocalApicTlbShootdown::complete ( ) const

inline

Definition at line 381 of file LocalApicTlbShootdown.h.

drained()

bool LocalApicTlbShootdown::drained ( ) const

inline

Definition at line 392 of file LocalApicTlbShootdown.h.

expectedMask()

uint64_t LocalApicTlbShootdown::expectedMask ( ) const

inline

Definition at line 424 of file LocalApicTlbShootdown.h.

finishService()

bool LocalApicTlbShootdown::finishService ( Service &  service )

inline

Definition at line 366 of file LocalApicTlbShootdown.h.

generation()

size_t LocalApicTlbShootdown::generation ( ) const

inline

Definition at line 416 of file LocalApicTlbShootdown.h.

isServing()

static constexpr bool LocalApicTlbShootdown::isServing ( size_t  token )

inlinestaticconstexprprivate

Definition at line 449 of file LocalApicTlbShootdown.h.

onlyCurrentProcessorServiceable()

static constexpr bool LocalApicTlbShootdown::onlyCurrentProcessorServiceable ( size_t  processorCount, size_t  terminalProcessors  )

inlinestaticconstexpr

Definition at line 298 of file LocalApicTlbShootdown.h.

owned()

bool LocalApicTlbShootdown::owned ( ) const

inline

Definition at line 408 of file LocalApicTlbShootdown.h.

processorMask()

static bool LocalApicTlbShootdown::processorMask ( size_t  processorCount, uint64_t &  mask  )

inlinestaticprivate

Definition at line 516 of file LocalApicTlbShootdown.h.

publish()

bool LocalApicTlbShootdown::publish ( uintptr_t  address, size_t  processor, size_t  processorCount, uint64_t  expected = ~uint64_t(0)  )

inline

Definition at line 307 of file LocalApicTlbShootdown.h.

release()

bool LocalApicTlbShootdown::release ( )

inline

Definition at line 401 of file LocalApicTlbShootdown.h.

retainedClosed()

bool LocalApicTlbShootdown::retainedClosed ( ) const

inline

Definition at line 412 of file LocalApicTlbShootdown.h.

revalidateServiceClaim()

bool LocalApicTlbShootdown::revalidateServiceClaim ( size_t  processor, size_t  generation, uintptr_t  address, size_t  serving, size_t  acknowledged, Service &  service  )

inlineprivate

Definition at line 461 of file LocalApicTlbShootdown.h.

selectNextGeneration()

bool LocalApicTlbShootdown::selectNextGeneration ( size_t &  generation ) const

inlineprivate

Definition at line 476 of file LocalApicTlbShootdown.h.

servicing()

size_t LocalApicTlbShootdown::servicing ( ) const

inline

Definition at line 433 of file LocalApicTlbShootdown.h.

servingToken()

static constexpr size_t LocalApicTlbShootdown::servingToken ( size_t  generation )

inlinestaticconstexprprivate

Definition at line 457 of file LocalApicTlbShootdown.h.

supportsContext()

static constexpr bool LocalApicTlbShootdown::supportsContext ( ExecutionContext  context )

inlinestaticconstexpr

Definition at line 294 of file LocalApicTlbShootdown.h.

tryAcquire()

bool LocalApicTlbShootdown::tryAcquire ( )

inline

Definition at line 303 of file LocalApicTlbShootdown.h.

Friends And Related Symbol Documentation

LocalApicTlbShootdownTestPeer

friend class LocalApicTlbShootdownTestPeer

friend

Definition at line 444 of file LocalApicTlbShootdown.h.

Member Data Documentation

m_Address

Atomic<uintptr_t> LocalApicTlbShootdown::m_Address

private

Definition at line 527 of file LocalApicTlbShootdown.h.

m_Expected

Atomic<uint64_t> LocalApicTlbShootdown::m_Expected

private

Definition at line 528 of file LocalApicTlbShootdown.h.

m_Generation

Atomic<size_t> LocalApicTlbShootdown::m_Generation

private

Definition at line 525 of file LocalApicTlbShootdown.h.

m_NextGeneration

Atomic<size_t> LocalApicTlbShootdown::m_NextGeneration

private

Definition at line 526 of file LocalApicTlbShootdown.h.

m_Owner

Atomic<bool> LocalApicTlbShootdown::m_Owner

private

Definition at line 524 of file LocalApicTlbShootdown.h.

m_ProcessorState

Atomic<size_t> LocalApicTlbShootdown::m_ProcessorState[MaxProcessors]

private

Definition at line 529 of file LocalApicTlbShootdown.h.

MaxGeneration

constexpr size_t LocalApicTlbShootdown::MaxGeneration = ~size_t(0) >> 1

staticconstexprprivate

Definition at line 447 of file LocalApicTlbShootdown.h.

MaxProcessors

constexpr size_t LocalApicTlbShootdown::MaxProcessors = 64

staticconstexpr

Definition at line 274 of file LocalApicTlbShootdown.h.

ServingBit

constexpr size_t LocalApicTlbShootdown::ServingBit = 1

staticconstexprprivate

Definition at line 446 of file LocalApicTlbShootdown.h.

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

• LocalApicTlbShootdown.h