// d3dukmdt.h

typedef struct D3DDDI_TRIMRESIDENCYSET_FLAGS {
  union {
    struct {
      UINT PeriodicTrim : 1;
      UINT RestartPeriodicTrim : 1;
      UINT TrimToBudget : 1;
      UINT Reserved : 29;
    };
    UINT Value;
  };
} D3DDDI_TRIMRESIDENCYSET_FLAGS;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-d3dukmdt-d3dddi_trimresidencyset_flags)

D3DDDI_TRIMRESIDENCYSET_FLAGS structure

Description

D3DDDI_TRIMRESIDENCYSET_FLAGS is used with pfnTrimResidencySet to trim the residency list for a given device.

Members

`PeriodicTrim`

When PeriodicTrim flag is set, the driver is required to performed the following operations:

Trim all allocations that were not referenced since the previous periodic trim request by comparing the allocation last referenced fence with the last periodic trim context fence.
Refresh the last periodic trim context fence with the last completed context fence.

`RestartPeriodicTrim`

May not be set together with PeriodicTrim flag. Reset the last periodic trim context fence to the last completed context fence.

`TrimToBudget`

Indicates that the application usage is over the memory budget and that NumBytesToTrim bytes should be trimmed to fit in the new memory budget.

`Reserved`

This member is reserved and should be set to zero.

`Value`

The consolidated value of the bit-fields in the structure.

D3DDDI_TRIMRESIDENCYSET_FLAGS - NtDoc