DXGKCB_FREEPAGESFROMMDL callback function (d3dkmddi.h)
DXGKCB_FREEPAGESFROMMDL frees all the physical pages described by a memory descriptor list (MDL) and allocated by the DXGKCB_ALLOCATEPAGESFORMDL routine.
Syntax
DXGKCB_FREEPAGESFROMMDL DxgkcbFreepagesfrommdl;
NTSTATUS DxgkcbFreepagesfrommdl(
[in] IN_CONST_HANDLE hAdapter,
[in] IN_CONST_PDXGKARGCB_FREEPAGESFROMMDL pFreePagesFromMdl
)
{...}
Parameters
[in] hAdapter
Handle to a display adapter.
[in] pFreePagesFromMdl
Pointer to a DXGKARGCB_FREEPAGESFROMMDL structure that contains a handle to the pages for the MDL.
Return value
Returns STATUS_SUCCESS if the operation succeeds. Otherwise, returns an appropriate NTSTATUS error code.
Remarks
DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, set the members of DXGKARGCB_FREEPAGESFROMMDL and then calls DxgkCbFreePagesFromMdl 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 |