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 |