// d3dkmthk.h

typedef struct _D3DKMT_GPUMMU_CAPS {
  union {
    struct {
      UINT ReadOnlyMemorySupported : 1;
      UINT NoExecuteMemorySupported : 1;
      UINT CacheCoherentMemorySupported : 1;
      UINT Reserved : 29;
    };
    UINT Value;
  } Flags;
  UINT  VirtualAddressBitCount;
} D3DKMT_GPUMMU_CAPS;
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Windows Driver Kit DDI reference (ns-d3dkmthk-_d3dkmt_gpummu_caps)

D3DKMT_GPUMMU_CAPS structure

Description

The D3DKMT_GPUMMU_CAPS structure describes the capabilities of the GPU MMU (memory management unit).

Members

`Flags`

Flags to indicate the type of capabilities.

`Flags.ReadOnlyMemorySupported`

Indicates whether the GPU MMU supports read-only memory.

`Flags.NoExecuteMemorySupported`

Indicates whether the GPU MMU supports marking memory as non-executable.

`Flags.CacheCoherentMemorySupported`

Indicates whether the GPU MMU supports cache-coherent memory access.

`Flags.Reserved`

Reserved for system use.

`Flags.Value`

An alternative way to access the flags.

`VirtualAddressBitCount`

The number of bits used for virtual addresses by the GPU MMU.

D3DKMT_GPUMMU_CAPS - NtDoc