// d3dkmdt.h

typedef struct _D3DKMT_WDDM_2_0_CAPS {
  union {
    struct {
      UINT Support64BitAtomics : 1;
      UINT GpuMmuSupported : 1;
      UINT IoMmuSupported : 1;
      UINT FlipOverwriteSupported : 1;
      UINT SupportContextlessPresent : 1;
      UINT SupportSurpriseRemoval : 1;
#if ...
      UINT Reserved : 26;
#elif
      UINT Reserved : 27;
#else
      UINT Reserved : 29;
#endif
    };
    UINT Value;
  };
} D3DKMT_WDDM_2_0_CAPS;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-d3dkmdt-_d3dkmt_wddm_2_0_caps)

D3DKMT_WDDM_2_0_CAPS structure

Description

Reserved for system use. Do not use.

Members

`Support64BitAtomics`

Supports 64-bit atomics.

`GpuMmuSupported`

Supports GPU memory management.

`IoMmuSupported`

Supports input/output memory management.

`FlipOverwriteSupported`

Supports flip overwrite.

`SupportContextlessPresent`

Supports contextless present display.

`SupportSurpriseRemoval`

Supports surprise removal.

`Reserved`

Reserved.

`Value`

An alternative way to access the cap bits.

Remarks

The graphics kernel uses D3DKMT_WDDM_2_0_CAPS to store various capabilities introduced in Windows Display Driver Model (WDDM) version 2.0. The driver provides its support capabilities during initialization, so it already knows all the values specified in this structure.

View the official Windows Driver Kit DDI reference

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