PerCpuTimerService Class Reference

Inheritance diagram for PerCpuTimerService:

Classes
struct	ClientData
struct	PerCpu
struct	RemoteSlot
struct	Timer
struct	WorkerMessage

Public Member Functions
bool	receive (MessageIrq &msg)
unsigned	alloc_crd ()
unsigned	portal_func (Utcb &utcb, Utcb::Frame &input, bool &free_cap, cap_sel pid)
uint64	wallclock_init ()
	PerCpuTimerService (Motherboard &mb, unsigned cap, unsigned cap_order, bool hpet_force_legacy, bool force_pit, unsigned pit_period_us, bool verbose, bool slow_wallclock)
Public Member Functions inherited from StaticReceiver< PerCpuTimerService >
	StaticReceiver ()
Public Member Functions inherited from Device
void	debug_dump ()
	Device (const char *debug_name)
Public Member Functions inherited from CapAllocator
	CapAllocator (unsigned long cap_, unsigned long cap_start, unsigned long cap_order)
unsigned	alloc_cap (unsigned count=1)
void	dealloc_cap (unsigned cap, unsigned count=1)

Static Public Member Functions
static void	do_xcpu_wakeup_thread (void *t) REGPARM(0) NORETURN
static void	do_per_cpu_worker (void *t, Utcb *u) REGPARM(0)
Static Public Member Functions inherited from StaticReceiver< PerCpuTimerService >
static bool	receive_static (Device *o, M &msg)

Private Member Functions
bool	attach_timer_irq (DBus< MessageHostOp > &bus_hostop, Timer *timer, phy_cpu_no cpu)
uint64	absolute_tsc_to_timer (PerCpu *per_cpu, uint64 tsc)
bool	per_cpu_handle_xcpu (PerCpu *per_cpu)
bool	per_cpu_client_request (PerCpu *per_cpu, ClientData *data)
uint64	handle_expired_timers (PerCpu *per_cpu, uint64 now)
void	update_hpet_estimation (PerCpu *per_cpu)
void	per_cpu_worker (Utcb *u)
bool	hpet_init (bool hpet_force_legacy)
void	hpet_start (uint64 value)
void	start_thread (ServiceThreadFn fn, unsigned prio, phy_cpu_no cpu)
void	pit_init (unsigned period_us)
void	xcpu_wakeup_thread () NORETURN

Private Attributes
Motherboard &	_mb
HostHpetRegister *	_reg
uint32	_timer_freq
uint64	_nominal_tsc_ticks_per_timer_tick
unsigned	_usable_timers
uint64	_pit_ticks
struct PerCpuTimerService::Timer	_timer [MAX_TIMERS]
ClientDataStorage< ClientData, PerCpuTimerService >	_storage
KernelSemaphore	_xcpu_up
PerCpu *	_per_cpu [Config::MAX_CPUS]
uint32	_assigned_irqs
bool	_verbose
bool	_slow_wallclock

Static Private Attributes
static const unsigned	MAX_TIMERS = 24

Additional Inherited Members
Public Attributes inherited from CapAllocator
unsigned long	_cap_
unsigned long	_cap_start
unsigned long	_cap_order
Private Types inherited from BasicHpet
enum	{   ENABLE_CNF = (1U << 0), LEG_RT_CNF = (1U << 1), LEG_RT_CAP = (1U << 15), BIT64_CAP = (1U << 13),   FSB_INT_DEL_CAP = (1U << 15), FSB_INT_EN_CNF = (1U << 14), MODE32_CNF = (1U << 8), PER_INT_CAP = (1U << 4),   TYPE_CNF = (1U << 3), INT_ENB_CNF = (1U << 2), INT_TYPE_CNF = (1U << 1) }
Static Private Member Functions inherited from BasicHpet
static unsigned long	get_hpet_address (DBus< MessageAcpi > &bus_acpi)
	Get the HPET address from the ACPI table.
static uint16	get_hpet_rid (DBus< MessageAcpi > &bus_acpi, unsigned block, unsigned comparator)
	Try to find out HPET routing ID.
static bool	check_hpet_present (void *address, unsigned timer, unsigned irq)
	Check whether some address points to an hpet.

Constructor & Destructor Documentation

PerCpuTimerService::PerCpuTimerService ( Motherboard &  mb, unsigned  cap, unsigned  cap_order, bool  hpet_force_legacy, bool  force_pit, unsigned  pit_period_us, bool  verbose, bool  slow_wallclock  )

inline

Member Function Documentation

uint64 PerCpuTimerService::absolute_tsc_to_timer ( PerCpu *  per_cpu, uint64  tsc  )

inlineprivate

unsigned PerCpuTimerService::alloc_crd ( )

inline

bool PerCpuTimerService::attach_timer_irq ( DBus< MessageHostOp > &  bus_hostop, Timer *  timer, phy_cpu_no  cpu  )

inlineprivate

static void PerCpuTimerService::do_per_cpu_worker ( void *  t, Utcb *  u  )

inlinestatic

static void PerCpuTimerService::do_xcpu_wakeup_thread ( void *  t )

inlinestatic

uint64 PerCpuTimerService::handle_expired_timers ( PerCpu *  per_cpu, uint64  now  )

inlineprivate

bool PerCpuTimerService::hpet_init ( bool  hpet_force_legacy )

inlineprivate

void PerCpuTimerService::hpet_start ( uint64  value )

inlineprivate

bool PerCpuTimerService::per_cpu_client_request ( PerCpu *  per_cpu, ClientData *  data  )

inlineprivate

bool PerCpuTimerService::per_cpu_handle_xcpu ( PerCpu *  per_cpu )

inlineprivate

void PerCpuTimerService::per_cpu_worker ( Utcb *  u )

inlineprivate

void PerCpuTimerService::pit_init ( unsigned  period_us )

inlineprivate

unsigned PerCpuTimerService::portal_func ( Utcb &  utcb, Utcb::Frame &  input, bool &  free_cap, cap_sel  pid  )

inline

bool PerCpuTimerService::receive ( MessageIrq &  msg )

inline

void PerCpuTimerService::start_thread ( ServiceThreadFn  fn, unsigned  prio, phy_cpu_no  cpu  )

inlineprivate

void PerCpuTimerService::update_hpet_estimation ( PerCpu *  per_cpu )

inlineprivate

uint64 PerCpuTimerService::wallclock_init ( )

inline

void PerCpuTimerService::xcpu_wakeup_thread ( )

inlineprivate

Member Data Documentation

uint32 PerCpuTimerService::_assigned_irqs

private

Motherboard& PerCpuTimerService::_mb

private

uint64 PerCpuTimerService::_nominal_tsc_ticks_per_timer_tick

private

PerCpu* PerCpuTimerService::_per_cpu[Config::MAX_CPUS]

private

uint64 PerCpuTimerService::_pit_ticks

private

HostHpetRegister* PerCpuTimerService::_reg

private

bool PerCpuTimerService::_slow_wallclock

private

ClientDataStorage<ClientData, PerCpuTimerService> PerCpuTimerService::_storage

private

struct PerCpuTimerService::Timer PerCpuTimerService::_timer[MAX_TIMERS]

private

uint32 PerCpuTimerService::_timer_freq

private

unsigned PerCpuTimerService::_usable_timers

private

bool PerCpuTimerService::_verbose

private

KernelSemaphore PerCpuTimerService::_xcpu_up

private

const unsigned PerCpuTimerService::MAX_TIMERS = 24

staticprivate

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

• base/apps/sigma0/service_per_cpu_timer.cc