DXGK_QUERYGPUMMUCAPSIN - NtDoc

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

typedef struct _DXGK_QUERYGPUMMUCAPSIN {
  UINT PhysicalAdapterIndex;
} DXGK_QUERYGPUMMUCAPSIN;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-d3dkmddi-_dxgk_querygpummucapsin)

_DXGK_QUERYGPUMMUCAPSIN structure

Description

The DXGK_QUERYGPUMMUCAPSIN structure holds the index of the adapter being queried.

Members

PhysicalAdapterIndex

A zero-based physical adapter index (engine ordinal) for which the data is queried.

Remarks

To get GpuMmu caps Dxgkrnl calls DxgkDdiQueryAdapterInfo with the following parameters:

DXGKARG_QUERYADAPTERINFO::Type = DXGKQAITYPE_GPUMMUCAPS;
DXGKARG_QUERYADAPTERINFO::pInputData = buffer of DXGK_QUERYGPUMMUCAPSIN type
DXGKARG_QUERYADAPTERINFO::InputDataSize = sizeof(DXGK_QUERYGPUMMUCAPSIN);
DXGKARG_QUERYADAPTERINFO::pOutputData = pointer to DXGK_GPUMMUCAPS
DXGKARG_QUERYADAPTERINFO::OutputDataSize = sizeof(DXGK_GPUMMUCAPS);