DXGK_POWER_COMPONENT_MAPPING structure (d3dkmddi.h)

Used in the DXGK_POWER_RUNTIME_COMPONENT.ComponentMapping member to define the standard component types of the Microsoft DirectX graphics kernel subsystem (Dxgkrnl.sys) that describe the power component.

Syntax

typedef struct _DXGK_POWER_COMPONENT_MAPPING {
  DXGK_POWER_COMPONENT_TYPE ComponentType;
  union {
    struct {
      UINT NodeIndex;
    } EngineDesc;
    struct {
      UINT VidPnSourceID;
    } MonitorRefreshDesc;
    struct {
      UINT VidPnTargetID;
    } MonitorDesc;
    struct {
      UINT SegmentID;
    } MemoryDesc;
    struct {
      union {
        struct {
          WORD SharedTypeFlag;
          WORD DriverCustomValueSet;
        };
        UINT SharedType;
      };
    } SharedDesc;
  };
} DXGK_POWER_COMPONENT_MAPPING;

Members

ComponentType

A DXGK_POWER_COMPONENT_TYPE-typed value that indicates the power component type that is reported by the display miniport driver to the DirectX graphics kernel subsystem.

EngineDesc

Information about the engine.

EngineDesc.NodeIndex

The index of the engine (node).

MonitorRefreshDesc

Information about the monitor refresh.

MonitorRefreshDesc.VidPnSourceID

An identifier of one of the video present sources associated with the video present network object.

MonitorDesc

Information about the monitor.

MonitorDesc.VidPnTargetID

An identifier of one of the video present targets associated with the VidPN object.

MemoryDesc

Information about the memory.

MemoryDesc.SegmentID

Memory segment ID.

SharedDesc

Shared power component description.

SharedDesc.SharedTypeFlag

Flag that indicates the shared type.

SharedDesc.DriverCustomValueSet

Custom shared value.

SharedDesc.SharedType

Shared type.

Remarks

Each component must be mapped to an engine, display, memory or other. Dxgkrnl will detect the idle state for engines, displays and memory segments.

• Multiple power components should not be mapped to the same engine (node).
• Multiple power components should not to be mapped to the same memory segment.
• Multiple power components should not be mapped to the same VidPn Source or Target.
• The same power component can be used with only one engine, memory segment or VidPnSourceId.

Requirements

Requirement	Value
Minimum supported client	Windows 8
Minimum supported server	Windows Server 2012
Header	d3dkmddi.h

See also

DXGK_POWER_COMPONENT_TYPE

DXGK_POWER_RUNTIME_COMPONENT