DXGK_BUILDPAGINGBUFFER_NOTIFYALLOC structure (d3dkmddi.h)
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The DXGK_BUILDPAGINGBUFFER_NOTIFYALLOC structure is used to notify the kernel-mode driver (KMD) of an allocation that is about to be used in a DXGK_OPERATION_NOTIFY_ALLOC paging operation.
Syntax
typedef struct _DXGK_BUILDPAGINGBUFFER_NOTIFYALLOC {
HANDLE hAllocation;
HANDLE hKmdProcessHandle;
DXGK_NOTIFYALLOCFLAGS Flags;
UINT64 OffsetInBytes;
UINT64 SizeInBytes;
UINT64 GpuVirtualAddressAtOffset;
} DXGK_BUILDPAGINGBUFFER_NOTIFYALLOC;
Members
hAllocation
The driver allocation handle returned from DxgkDdiCreateAllocation.
hKmdProcessHandle
The driver process object handle returned from DxgkDdiCreateProcess. This handle is zero when the Eviction flag is set.
Flags
A DXGK_NOTIFYALLOCFLAGS structure specifying the flags related to the operation.
OffsetInBytes
Offset from the start of the allocation, in bytes. This value is used when an operation is performed on part of an allocation.
SizeInBytes
Size of the operation, in bytes.
GpuVirtualAddressAtOffset
The GPU virtual address corresponding to the allocation offset. When the Eviction flag is set, the GPU VA address is in the paging process context. When the IoMmuUnmap flag is set, the GPU VA address is in the context of the process defined by hKmdProcessHandle.
Remarks
For more information, see Allocation Notification.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 11, version 24H2 (WDDM 3.2) |
| Header | d3dkmddi.h |