// d3d12umddi.h

PFND3D12DDI_EVICT2 Pfnd3d12ddiEvict2;

HRESULT Pfnd3d12ddiEvict2(
  D3D12DDI_HDEVICE unnamedParam1,
  const D3D12DDIARG_EVICT *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3d12umddi-pfnd3d12ddi_evict2)

PFND3D12DDI_EVICT2 callback function

Description

PFND3D12DDI_EVICT2 instructs the OS to decrement the residency reference count. Once this count reaches zero, it will remove the allocation from the device residency list.

Parameters

`unnamedParam1`

A handle to the display device.

`unnamedParam2`

A pointer to a D3D12DDIARG_EVICT structure that describes the memory pages to evict.

Return value

If this callback function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Prototype

//Declaration

PFND3D12DDI_EVICT2 Pfnd3d12ddiEvict2;

// Definition

HRESULT Pfnd3d12ddiEvict2
(
     D3D12DDI_HDEVICE
    CONST D3D12DDIARG_EVICT *
)
{...}

PFND3D12DDI_EVICT2

Remarks

Once the eviction request is queued, it is illegal to access the underlying allocation as the allocation may be evicted at anytime from there on at the operating system discretion.

PFND3D12DDI_EVICT2 - NtDoc