mirror of https://github.com/acidanthera/audk.git
623 lines
23 KiB
C
623 lines
23 KiB
C
/** @file
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Memory Allocation Library Services
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name: MemoryAllocationLib.h
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**/
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#ifndef __MEMORY_ALLOCATION_LIB_H__
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#define __MEMORY_ALLOCATION_LIB_H__
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/**
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Allocates one or more 4KB pages of type EfiBootServicesData.
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Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the
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allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
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is returned. If there is not enough memory remaining to satisfy the request, then NULL is
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returned.
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@param Pages The number of 4 KB pages to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocatePages (
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IN UINTN Pages
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);
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/**
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Allocates one or more 4KB pages of type EfiRuntimeServicesData.
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Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
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allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
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is returned. If there is not enough memory remaining to satisfy the request, then NULL is
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returned.
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@param Pages The number of 4 KB pages to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateRuntimePages (
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IN UINTN Pages
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);
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/**
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Allocates one or more 4KB pages of type EfiReservedMemoryType.
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Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the
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allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
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is returned. If there is not enough memory remaining to satisfy the request, then NULL is
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returned.
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@param Pages The number of 4 KB pages to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateReservedPages (
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IN UINTN Pages
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);
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/**
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Frees one or more 4KB pages that were previously allocated with one of the page allocation
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functions in the Memory Allocation Library.
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Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
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must have been allocated on a previous call to the page allocation services of the Memory
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Allocation Library.
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If Buffer was not allocated with a page allocation function in the Memory Allocation Library,
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then ASSERT().
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If Pages is zero, then ASSERT().
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@param Buffer Pointer to the buffer of pages to free.
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@param Pages The number of 4 KB pages to free.
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**/
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VOID
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EFIAPI
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FreePages (
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IN VOID *Buffer,
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IN UINTN Pages
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);
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/**
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Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.
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Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an
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alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
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returned. If there is not enough memory at the specified alignment remaining to satisfy the
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request, then NULL is returned.
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If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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@param Pages The number of 4 KB pages to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateAlignedPages (
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IN UINTN Pages,
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IN UINTN Alignment
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);
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/**
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Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.
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Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an
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alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
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returned. If there is not enough memory at the specified alignment remaining to satisfy the
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request, then NULL is returned.
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If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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@param Pages The number of 4 KB pages to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateAlignedRuntimePages (
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IN UINTN Pages,
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IN UINTN Alignment
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);
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/**
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Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.
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Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an
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alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
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returned. If there is not enough memory at the specified alignment remaining to satisfy the
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request, then NULL is returned.
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If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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@param Pages The number of 4 KB pages to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateAlignedReservedPages (
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IN UINTN Pages,
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IN UINTN Alignment
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);
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/**
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Frees one or more 4KB pages that were previously allocated with one of the aligned page
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allocation functions in the Memory Allocation Library.
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Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
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must have been allocated on a previous call to the aligned page allocation services of the Memory
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Allocation Library.
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If Buffer was not allocated with an aligned page allocation function in the Memory Allocation
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Library, then ASSERT().
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If Pages is zero, then ASSERT().
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@param Buffer Pointer to the buffer of pages to free.
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@param Pages The number of 4 KB pages to free.
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**/
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VOID
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EFIAPI
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FreeAlignedPages (
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IN VOID *Buffer,
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IN UINTN Pages
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);
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/**
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Allocates a buffer of type EfiBootServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a
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pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
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returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocatePool (
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IN UINTN AllocationSize
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);
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/**
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Allocates a buffer of type EfiRuntimeServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns
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a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
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returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateRuntimePool (
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IN UINTN AllocationSize
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);
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/**
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Allocates a buffer of type EfieservedMemoryType.
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Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType and returns
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a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
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returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateReservedPool (
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IN UINTN AllocationSize
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);
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/**
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Allocates and zeros a buffer of type EfiBootServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the
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buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
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valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
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request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate and zero.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateZeroPool (
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IN UINTN AllocationSize
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);
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/**
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Allocates and zeros a buffer of type EfiRuntimeServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the
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buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
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valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
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request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate and zero.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateRuntimeZeroPool (
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IN UINTN AllocationSize
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);
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/**
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Allocates and zeros a buffer of type EfiReservedMemoryType.
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Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the
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buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
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valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
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request, then NULL is returned.
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@param AllocationSize The number of bytes to allocate and zero.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateReservedZeroPool (
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IN UINTN AllocationSize
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);
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/**
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Copies a buffer to an allocated buffer of type EfiBootServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies
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AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
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allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
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is not enough memory remaining to satisfy the request, then NULL is returned.
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If Buffer is NULL, then ASSERT().
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If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
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@param AllocationSize The number of bytes to allocate and zero.
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@param Buffer The buffer to copy to the allocated buffer.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateCopyPool (
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IN UINTN AllocationSize,
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IN CONST VOID *Buffer
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);
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/**
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Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.
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Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies
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AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
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allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
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is not enough memory remaining to satisfy the request, then NULL is returned.
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If Buffer is NULL, then ASSERT().
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If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
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@param AllocationSize The number of bytes to allocate and zero.
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@param Buffer The buffer to copy to the allocated buffer.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateRuntimeCopyPool (
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IN UINTN AllocationSize,
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IN CONST VOID *Buffer
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);
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/**
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Copies a buffer to an allocated buffer of type EfiReservedMemoryType.
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Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies
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AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
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allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
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is not enough memory remaining to satisfy the request, then NULL is returned.
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If Buffer is NULL, then ASSERT().
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If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
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@param AllocationSize The number of bytes to allocate and zero.
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@param Buffer The buffer to copy to the allocated buffer.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateReservedCopyPool (
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IN UINTN AllocationSize,
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IN CONST VOID *Buffer
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);
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/**
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Frees a buffer that was previously allocated with one of the pool allocation functions in the
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Memory Allocation Library.
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Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the
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pool allocation services of the Memory Allocation Library.
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If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,
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then ASSERT().
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@param Buffer Pointer to the buffer to free.
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**/
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VOID
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EFIAPI
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FreePool (
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IN VOID *Buffer
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);
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/**
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Allocates a buffer of type EfiBootServicesData at a specified alignment.
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Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an
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alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
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then a valid buffer of 0 size is returned. If there is not enough memory at the specified
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alignment remaining to satisfy the request, then NULL is returned.
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If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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@param AllocationSize The number of bytes to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateAlignedPool (
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IN UINTN AllocationSize,
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IN UINTN Alignment
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);
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/**
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Allocates a buffer of type EfiRuntimeServicesData at a specified alignment.
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Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an
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alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
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then a valid buffer of 0 size is returned. If there is not enough memory at the specified
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alignment remaining to satisfy the request, then NULL is returned.
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If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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@param AllocationSize The number of bytes to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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AllocateAlignedRuntimePool (
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IN UINTN AllocationSize,
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IN UINTN Alignment
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);
|
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/**
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Allocates a buffer of type EfieservedMemoryType at a specified alignment.
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|
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|
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an
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alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
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|
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
|
alignment remaining to satisfy the request, then NULL is returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
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|
|
|
@param AllocationSize The number of bytes to allocate.
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@param Alignment The requested alignment of the allocation. Must be a power of two.
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If Alignment is zero, then byte alignment is used.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
|
|
VOID *
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EFIAPI
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AllocateAlignedReservedPool (
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IN UINTN AllocationSize,
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IN UINTN Alignment
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);
|
|
|
|
/**
|
|
Allocates and zeros a buffer of type EfiBootServicesData at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an
|
|
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
|
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
|
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
|
returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedZeroPool (
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|
IN UINTN AllocationSize,
|
|
IN UINTN Alignment
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|
);
|
|
|
|
/**
|
|
Allocates and zeros a buffer of type EfiRuntimeServicesData at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an
|
|
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
|
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
|
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
|
returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
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|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedRuntimeZeroPool (
|
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IN UINTN AllocationSize,
|
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IN UINTN Alignment
|
|
);
|
|
|
|
/**
|
|
Allocates and zeros a buffer of type EfieservedMemoryType at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an
|
|
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
|
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
|
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
|
returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedReservedZeroPool (
|
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IN UINTN AllocationSize,
|
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IN UINTN Alignment
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);
|
|
|
|
/**
|
|
Copies a buffer to an allocated buffer of type EfiBootServicesData at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData type with an
|
|
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
|
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
|
alignment remaining to satisfy the request, then NULL is returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Buffer The buffer to copy to the allocated buffer.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedCopyPool (
|
|
IN UINTN AllocationSize,
|
|
IN CONST VOID *Buffer,
|
|
IN UINTN Alignment
|
|
);
|
|
|
|
/**
|
|
Copies a buffer to an allocated buffer of type EfiRuntimeServicesData at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData type with an
|
|
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
|
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
|
alignment remaining to satisfy the request, then NULL is returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Buffer The buffer to copy to the allocated buffer.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedRuntimeCopyPool (
|
|
IN UINTN AllocationSize,
|
|
IN CONST VOID *Buffer,
|
|
IN UINTN Alignment
|
|
);
|
|
|
|
/**
|
|
Copies a buffer to an allocated buffer of type EfiReservedMemoryType at a specified alignment.
|
|
|
|
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType type with an
|
|
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
|
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
|
alignment remaining to satisfy the request, then NULL is returned.
|
|
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
|
|
|
@param AllocationSize The number of bytes to allocate.
|
|
@param Buffer The buffer to copy to the allocated buffer.
|
|
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
|
If Alignment is zero, then byte alignment is used.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocateAlignedReservedCopyPool (
|
|
IN UINTN AllocationSize,
|
|
IN CONST VOID *Buffer,
|
|
IN UINTN Alignment
|
|
);
|
|
|
|
/**
|
|
Frees a buffer that was previously allocated with one of the aligned pool allocation functions
|
|
in the Memory Allocation Library.
|
|
|
|
Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the
|
|
aligned pool allocation services of the Memory Allocation Library.
|
|
If Buffer was not allocated with an aligned pool allocation function in the Memory Allocation
|
|
Library, then ASSERT().
|
|
|
|
@param Buffer Pointer to the buffer to free.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
FreeAlignedPool (
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
#endif
|