// dispmprt.h

VOID DlReleaseCommonBuffer(
  IN PVOID            DeviceHandle,
  IN PVP_DMA_ADAPTER  DlpDmaAdapter,
  IN ULONG            Length,
  IN PHYSICAL_ADDRESS LogicalAddress,
  IN PVOID            VirtualAddress,
  IN BOOLEAN          CacheEnabled
);
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Windows Driver Kit DDI reference (nf-dispmprt-dlreleasecommonbuffer)

DlReleaseCommonBuffer function

Description

Frees a common buffer that was previously allocated.

Parameters

`DeviceHandle`

A handle that represents a display adapter.

`DlpDmaAdapter`

`Length`

Specifies the number of bytes of memory to be freed.

`LogicalAddress`

Specifies the logical address of the buffer to be freed.

`VirtualAddress`

Pointer to the corresponding virtual address of the allocated memory range.

`CacheEnabled`

Indicates whether the allocated memory is cached.

DlReleaseCommonBuffer - NtDoc