PAGP_RELEASE_PHYSICAL callback function

The AgpReleasePhysical function frees a physical address range reserved by a previous call to AgpReservePhysical.

Syntax


PAGP_RELEASE_PHYSICAL AgpReleasePhysical;

VOID APIENTRY AgpReleasePhysical(
  _In_ PVOID HwDeviceExtension,
  _In_ PVOID PhysicalReserveContext
)
{ ... }

Parameters

HwDeviceExtension [in]

Pointer to the miniport driver's device extension.

PhysicalReserveContext [in]

Is the context handle that identifies the reserved physical address range to be released. This context was obtained from AgpReservePhysical.

Return value

None

Remarks

The miniport driver must call AgpFreePhysical to unmap all committed memory within the address range identified by PhysicalReserveContext before calling AgpReleasePhysical.

Requirements

Target platform

Desktop

Version

Available in Windows 2000 and later versions of the Windows operating systems.

Header

Videoagp.h (include Video.h)

IRQL

PASSIVE_LEVEL

See also

AgpFreePhysical
AgpReservePhysical

 

 

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