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StorPortFreeContiguousMemorySpecifyCache function (storport.h)

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The StorPortFreeContiguousMemorySpecifyCache routine deallocates a range of noncached memory in the nonpaged portion of the system address space.

Syntax

ULONG StorPortFreeContiguousMemorySpecifyCache(
  [in] PVOID               HwDeviceExtension,
  [in] PVOID               BaseAddress,
  [in] SIZE_T              NumberOfBytes,
  [in] MEMORY_CACHING_TYPE CacheType
);

Parameters

[in] HwDeviceExtension

A pointer to the hardware device extension for the host bus adapter (HBA).

[in] BaseAddress

The base virtual address to free.

[in] NumberOfBytes

The number of bytes that are allocated to the request. This must be the same number that was supplied as a parameter when the StorPortAllocateContiguousMemorySpecifyCacheNode routine was previously called.

[in] CacheType

The cache type that is used in the call to the StorPortAllocateContiguousMemorySpecifyCacheNode routine.

Return value

The StorPortFreeContiguousMemorySpecifyCache routine returns one of the following status codes:

Return code Description
STOR_STATUS_NOT_IMPLEMENTED
 This function is not implemented on the active operating system.
STOR_STATUS_SUCCESS
 The operation was successful.

Requirements

Requirement Value
Minimum supported client Available in Windows 7 and later versions of the Windows operating systems.
Target Platform Universal
Header storport.h (include Storport.h)
IRQL <=DISPATCH_LEVEL
DDI compliance rules StorPortIrql(storport)

See also

StorPortAllocateContiguousMemorySpecifyCacheNode