DXGKCB_UNMAPMDLFROMIOMMU - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// d3dkmddi.h

DXGKCB_UNMAPMDLFROMIOMMU DxgkcbUnmapmdlfromiommu;

VOID DxgkcbUnmapmdlfromiommu(
  [in] IN_CONST_HANDLE hAdapter,
  [in] IN_CONST_PDXGKARGCB_UNMAPMDLFROMIOMMU pUnmapMdlFromIoMmu
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-d3dkmddi-dxgkcb_unmapmdlfromiommu)

DXGKCB_UNMAPMDLFROMIOMMU callback function

Description

DXGKCB_UNMAPMDLFROMIOMMU releases the mapping that was set by DXGKCB_MAPMDLTOIOMMU.

Parameters

hAdapter [in]

A handle to a display adapter. The driver provides this handle for the master/lead device in the LDA chain.

pUnmapMdlFromIoMmu [in]

A pointer to the DXGKARGCB_UNMAPMDLFROMIOMMU structure that contains a handle to the memory to be unmapped.

Remarks

DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, set the members of DXGKARGCB_UNMAPMDLFROMIOMMU and then calls DxgkCbUnmapMdlFromIoMmu via the DXGKRNL_INTERFACE.

See IOMMU-based GPU isolation for more information.

See also

DXGKARGCB_UNMAPMDLFROMIOMMU

DXGKCB_MAPMDLTOIOMMU

DXGKRNL_INTERFACE

View the official Windows Driver Kit DDI reference

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