PAGP_RELEASE_PHYSICAL callback function (videoagp.h)
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 |