DXGKCB_FREECONTIGUOUSMEMORY callback function (d3dkmddi.h)
DXGKCB_FREECONTIGUOUSMEMORY frees a range of physically contiguous memory that was allocated by DXGKCB_ALLOCATECONTIGUOUSMEMORY.
Syntax
DXGKCB_FREECONTIGUOUSMEMORY DxgkcbFreecontiguousmemory;
NTSTATUS DxgkcbFreecontiguousmemory(
[in] IN_CONST_HANDLE hAdapter,
[in] IN_CONST_PDXGKARGCB_FREECONTIGUOUSMEMORY pFreeContiguousMemory
)
{...}
Parameters
[in] hAdapter
Handle to a display adapter.
[in] pFreeContiguousMemory
Pointer to a DXGKARGCB_FREECONTIGUOUSMEMORY structure that contains a handle to the contiguous memory to be freed.
Return value
Return STATUS_SUCCESS if the operation succeeds. Otherwise, return an appropriate NTSTATUS error code.
Remarks
DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, set the members of DXGKARGCB_FREECONTIGUOUSMEMORY and then call DxgkCbFreeContiguousMemory via the DXGKRNL_INTERFACE.
See IOMMU-based GPU isolation for more information.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1803 (WDDM 2.4) |
| Header | d3dkmddi.h |
| IRQL | PASSIVE_LEVEL |
See also
DXGKARGCB_FREECONTIGUOUSMEMORY