CmArchCommonLpiInfo Struct Reference

#include <DynamicTablesPkg/Include/ArchCommonNameSpaceObjects.h>

Data Fields
UINT32	MinResidency
UINT32	WorstCaseWakeLatency
UINT32	Flags
UINT32	ArchFlags
UINT32	ResCntFreq
UINT32	EnableParentState
BOOLEAN	IsInteger
UINT64	IntegerEntryMethod
EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE	RegisterEntryMethod
EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE	ResidencyCounterRegister
EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE	UsageCounterRegister
CHAR8	StateName [16]

Detailed Description

A structure that describes the Lpi information.

The Low Power Idle states are described in DSDT/SSDT and associated to cpus/clusters in the cpu topology.

ID: EArchCommonObjLpiInfo

Definition at line 323 of file ArchCommonNameSpaceObjects.h.

Field Documentation

ArchFlags

UINT32 CmArchCommonLpiInfo::ArchFlags

Architecture specific context loss flags.

Definition at line 340 of file ArchCommonNameSpaceObjects.h.

EnableParentState

UINT32 CmArchCommonLpiInfo::EnableParentState

Every shallower power state in the parent is also enabled.

Definition at line 348 of file ArchCommonNameSpaceObjects.h.

Flags

UINT32 CmArchCommonLpiInfo::Flags

Flags.

Definition at line 336 of file ArchCommonNameSpaceObjects.h.

IntegerEntryMethod

UINT64 CmArchCommonLpiInfo::IntegerEntryMethod

EntryMethod described as an Integer.

Definition at line 360 of file ArchCommonNameSpaceObjects.h.

IsInteger

BOOLEAN CmArchCommonLpiInfo::IsInteger

The EntryMethod _LPI field can be described as an integer or in a Register resource data descriptor.

If IsInteger is TRUE, the IntegerEntryMethod field is used. If IsInteger is FALSE, the RegisterEntryMethod field is used.

Definition at line 356 of file ArchCommonNameSpaceObjects.h.

MinResidency

UINT32 CmArchCommonLpiInfo::MinResidency

Minimum Residency. Time in microseconds after which a state becomes more energy efficient than any shallower state.

Definition at line 327 of file ArchCommonNameSpaceObjects.h.

RegisterEntryMethod

EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE CmArchCommonLpiInfo::RegisterEntryMethod

EntryMethod described as a EFI_ACPI_GENERIC_REGISTER_DESCRIPTOR.

Definition at line 364 of file ArchCommonNameSpaceObjects.h.

ResCntFreq

UINT32 CmArchCommonLpiInfo::ResCntFreq

Residency counter frequency in cycles-per-second (Hz).

Definition at line 344 of file ArchCommonNameSpaceObjects.h.

ResidencyCounterRegister

EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE CmArchCommonLpiInfo::ResidencyCounterRegister

Residency counter register.

Definition at line 368 of file ArchCommonNameSpaceObjects.h.

StateName

CHAR8 CmArchCommonLpiInfo::StateName[16]

String representing the Lpi state

Definition at line 376 of file ArchCommonNameSpaceObjects.h.

UsageCounterRegister

EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE CmArchCommonLpiInfo::UsageCounterRegister

Usage counter register.

Definition at line 372 of file ArchCommonNameSpaceObjects.h.

WorstCaseWakeLatency

UINT32 CmArchCommonLpiInfo::WorstCaseWakeLatency

Worst case time in microseconds from a wake interrupt being asserted to the return to a running state

Definition at line 332 of file ArchCommonNameSpaceObjects.h.

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

• DynamicTablesPkg/Include/ArchCommonNameSpaceObjects.h