Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
The DXGKARG_UNMAPCPUHOSTAPERTURE structure is used to unmap a previously mapped range of the CPU host aperture.
Syntax
typedef struct _DXGKARG_UNMAPCPUHOSTAPERTURE {
UINT64 NumberOfPages;
UINT32 *pCpuHostAperturePages;
WORD SegmentId;
WORD PhysicalAdapterIndex;
} DXGKARG_UNMAPCPUHOSTAPERTURE;
Members
NumberOfPages
Specifies the number of pages being unmapped.
pCpuHostAperturePages
Array of CPU host aperture pages to unmap. This is an array of page indices from the start of the CPU host aperture physical address.
SegmentId
The driver segment identifier (starting from 1) of the segment for which the CPU host aperture is unmapped.
PhysicalAdapterIndex
The zero-based physical adapter index in a linked display adapter link.
Note The page size is equal to the segment page size.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10 |
| Minimum supported server | Windows Server 2016 |
| Header | d3dkmddi.h (include D3dkmddi.h) |