arch.s390x.cpu.sigp Module Reference

Data Structures
struct	arch::s390x::cpu::sigp::sigp_backoff
	SIGP retry backoff state. More...
struct	arch::s390x::cpu::sigp::sigp_result

Functions
auto	arch::s390x::cpu::sigp::default_backoff (u64 timeout_tod) noexcept -> sigp_backoff
	Build a sigp_backoff with default parameters.
auto	expired () const noexcept -> bool
	Check whether the deadline has passed.
auto	arch::s390x::cpu::sigp::issue (u16 addr, u8 order, u64 parm) -> sigp_result
	Issue a SIGP (Signal Processor) instruction.
auto	arch::s390x::cpu::sigp::issue_bounded (u16 cpu_addr, u8 order, u32 parm) noexcept -> sigp_result
	Issue SIGP with exponential backoff until the target CPU is no longer busy (CC != 2) or the deadline expires.
auto	arch::s390x::cpu::sigp::issue_bounded (u16 cpu_addr, u8 order, u32 parm, sigp_backoff &backoff) noexcept -> sigp_result
	Issue SIGP with exponential backoff until the target CPU is no longer busy (CC != 2) or the deadline expires.
auto	next_delay () noexcept -> u64
	Compute the next backoff delay.
auto	wait () noexcept -> void
	Busy-wait for current_tod units.
auto	arch::s390x::cpu::sigp::wait_cpu_stopped (u16 cpu_addr) noexcept -> sigp_result
	Wait until a CPU is stopped, with check-stop recovery.

Variables
condition_code	cc {}
u64	current_tod
	Current delay.
u64	deadline
	Absolute TOD deadline.
u64	max_tod
	Cap delay.
u64	min_tod
	Initial delay in TOD units (~4096 per ms).
constexpr auto	arch::s390x::cpu::sigp::SIGP_CC_BUSY = 2
constexpr auto	arch::s390x::cpu::sigp::SIGP_CC_NOT_OPERATIONAL = 3
constexpr auto	arch::s390x::cpu::sigp::SIGP_CC_ORDER_CODE_ACCEPTED = 0
	SIGP condition codes.
constexpr auto	arch::s390x::cpu::sigp::SIGP_CC_STATUS_STORED = 1
constexpr auto	arch::s390x::cpu::sigp::SIGP_EMERGENCY_SIGNAL = 0x03U
constexpr auto	arch::s390x::cpu::sigp::SIGP_EXTERNAL_CALL = 0x02U
constexpr auto	arch::s390x::cpu::sigp::SIGP_INITIAL_CPU_RESET = 0x0BU
constexpr auto	arch::s390x::cpu::sigp::SIGP_RESTART = 0x06U
constexpr auto	arch::s390x::cpu::sigp::SIGP_SENSE = 0x01U
	SIGP order codes (PoP SA22-7832 Chapter 4).
constexpr auto	arch::s390x::cpu::sigp::SIGP_SET_ARCHITECTURE = 0x12U
constexpr auto	arch::s390x::cpu::sigp::SIGP_SET_MULTI_THREADING = 0x16U
constexpr auto	arch::s390x::cpu::sigp::SIGP_SET_PREFIX = 0x0DU
constexpr auto	arch::s390x::cpu::sigp::SIGP_START = 0x04U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_CHECK_STOP = 0x0000'0010U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_EXT_CALL_PENDING = 0x0000'0080U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_INCORRECT_STATE = 0x0000'0200U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_INVALID_ORDER = 0x0000'0002U
	SIGP status bits stored when the condition code is STATUS_STORED.
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_INVALID_PARAMETER = 0x0000'0100U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_NOT_RUNNING = 0x0000'0400U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STATUS_STOPPED = 0x0000'0040U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STOP = 0x05U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STOP_AND_STORE_STATUS = 0x09U
constexpr auto	arch::s390x::cpu::sigp::SIGP_STORE_STATUS = 0x0EU
constexpr auto	arch::s390x::cpu::sigp::SIGP_STORE_STATUS_AT_ADDRESS = 0x17U
u32	status {}

Files
file	arch/s390x/cpu/sigp.zcomponent/sigp.cxxm
	SIGP (SIGnal Processor) API.
file	arch/s390x/cpu/sigp.zcomponent/sigp.cxx