Edit

PAGP_RELEASE_PHYSICAL callback function (videoagp.h)

  • Article

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

Syntax

PAGP_RELEASE_PHYSICAL PagpReleasePhysical;

void PagpReleasePhysical(
  [in] IN PVOID HwDeviceExtension,
  [in] IN PVOID PhysicalReserveContext
)
{...}

Parameters

[in] HwDeviceExtension

Pointer to the miniport driver's device extension.

[in] PhysicalReserveContext

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

Requirement Value
Minimum supported client Available in Windows 2000 and later versions of the Windows operating systems.
Target Platform Desktop
Header videoagp.h (include Video.h)
IRQL PASSIVE_LEVEL

See also

AgpFreePhysical

AgpReservePhysical