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ArmPkg: remove UncachedMemoryAllocationLib 

Now that ArmDmaLib can take care of its own memory allocation needs,
let's get rid of UncachedMemoryAllocationLib entirely. This forces
platforms to declare the required semantics (non-cache coherent DMA,
whichever way it is implemented), rather than using uncached memory
allocations directly, which may not always be the right choice, and
prevents sharing of drivers between platforms if one is cache coherent
and the other is not.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel 2017-08-24 20:37:01 +01:00
parent f29ca8e8b9
commit dcd48d2db4
5 changed files with 0 additions and 1440 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ArmPkg/ArmPkg.dec
View File

@ -36,7 +36,6 @@
ArmLib|Include/Library/ArmLib.h
ArmMmuLib|Include/Library/ArmMmuLib.h
SemihostLib|Include/Library/Semihosting.h
UncachedMemoryAllocationLib|Include/Library/UncachedMemoryAllocationLib.h
DefaultExceptionHandlerLib|Include/Library/DefaultExceptionHandlerLib.h
ArmDisassemblerLib|Include/Library/ArmDisassemblerLib.h
ArmGicArchLib|Include/Library/ArmGicArchLib.h
@ -84,9 +83,6 @@
# Using a FeaturePcd make a '(BOOLEAN) casting for its value which is not understood by the preprocessor.
gArmTokenSpaceGuid.PcdVFPEnabled|0|UINT32|0x00000024
# This PCD will free the unallocated buffers if their size reach this threshold.
# We set the default value to 512MB.
gArmTokenSpaceGuid.PcdArmFreeUncachedMemorySizeThreshold|0x20000000|UINT64|0x00000003
gArmTokenSpaceGuid.PcdCpuVectorBaseAddress|0xffff0000|UINT64|0x00000004
gArmTokenSpaceGuid.PcdCpuResetAddress|0x00000000|UINT32|0x00000005

2
ArmPkg/ArmPkg.dsc
View File

@ -62,7 +62,6 @@
HiiLib|MdeModulePkg/Library/UefiHiiLib/UefiHiiLib.inf
SemihostLib|ArmPkg/Library/SemihostLib/SemihostLib.inf
UncachedMemoryAllocationLib|ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf
DxeServicesTableLib|MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf
DefaultExceptionHandlerLib|ArmPkg/Library/DefaultExceptionHandlerLib/DefaultExceptionHandlerLib.inf
CpuExceptionHandlerLib|ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.inf
@ -117,7 +116,6 @@
ArmPkg/Library/SemiHostingDebugLib/SemiHostingDebugLib.inf
ArmPkg/Library/SemiHostingSerialPortLib/SemiHostingSerialPortLib.inf
ArmPkg/Library/SemihostLib/SemihostLib.inf
ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf
ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf
ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.inf
ArmPkg/Library/ArmExceptionLib/ArmRelocateExceptionLib.inf

665
ArmPkg/Include/Library/UncachedMemoryAllocationLib.h
View File

@ -1,665 +0,0 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __UNCACHED_MEMORY_ALLOCATION_LIB_H__
#define __UNCACHED_MEMORY_ALLOCATION_LIB_H__
/**
Converts a cached or uncached address to a physical address suitable for use in SoC registers.
@param VirtualAddress The pointer to convert.
@return The physical address of the supplied virtual pointer.
**/
EFI_PHYSICAL_ADDRESS
ConvertToPhysicalAddress (
IN VOID *VirtualAddress
);
/**
Converts a cached or uncached address to a cached address.
@param Address The pointer to convert.
@return The address of the cached memory location corresponding to the input address.
**/
VOID *
ConvertToCachedAddress (
IN VOID *Address
);
/**
Converts a cached or uncached address to an uncached address.
@param Address The pointer to convert.
@return The address of the uncached memory location corresponding to the input address.
**/
VOID *
ConvertToUncachedAddress (
IN VOID *Address
);
/**
Allocates one or more 4KB pages of type EfiBootServicesData.
Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
returned.
@param Pages The number of 4 KB pages to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocatePages (
IN UINTN Pages
);
/**
Allocates one or more 4KB pages of type EfiRuntimeServicesData.
Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
returned.
@param Pages The number of 4 KB pages to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateRuntimePages (
IN UINTN Pages
);
/**
Allocates one or more 4KB pages of type EfiReservedMemoryType.
Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
returned.
@param Pages The number of 4 KB pages to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateReservedPages (
IN UINTN Pages
);
/**
Frees one or more 4KB pages that were previously allocated with one of the page allocation
functions in the Memory Allocation Library.
Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
must have been allocated on a previous call to the page allocation services of the Memory
Allocation Library.
If Buffer was not allocated with a page allocation function in the Memory Allocation Library,
then ASSERT().
If Pages is zero, then ASSERT().
@param Buffer Pointer to the buffer of pages to free.
@param Pages The number of 4 KB pages to free.
**/
VOID
EFIAPI
UncachedFreePages (
IN VOID *Buffer,
IN UINTN Pages
);
/**
Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.
Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL 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 Pages The number of 4 KB pages 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
UncachedAllocateAlignedPages (
IN UINTN Pages,
IN UINTN Alignment
);
/**
Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.
Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL 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 Pages The number of 4 KB pages 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
UncachedAllocateAlignedRuntimePages (
IN UINTN Pages,
IN UINTN Alignment
);
/**
Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.
Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL 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 Pages The number of 4 KB pages 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
UncachedAllocateAlignedReservedPages (
IN UINTN Pages,
IN UINTN Alignment
);
/**
Frees one or more 4KB pages that were previously allocated with one of the aligned page
allocation functions in the Memory Allocation Library.
Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
must have been allocated on a previous call to the aligned page allocation services of the Memory
Allocation Library.
If Buffer was not allocated with an aligned page allocation function in the Memory Allocation
Library, then ASSERT().
If Pages is zero, then ASSERT().
@param Buffer Pointer to the buffer of pages to free.
@param Pages The number of 4 KB pages to free.
**/
VOID
EFIAPI
UncachedFreeAlignedPages (
IN VOID *Buffer,
IN UINTN Pages
);
/**
Allocates a buffer of type EfiBootServicesData.
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData 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 remaining to satisfy the request, then NULL is returned.
@param AllocationSize The number of bytes to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocatePool (
IN UINTN AllocationSize
);
/**
Allocates a buffer of type EfiRuntimeServicesData.
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData 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 remaining to satisfy the request, then NULL is returned.
@param AllocationSize The number of bytes to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateRuntimePool (
IN UINTN AllocationSize
);
/**
Allocates a buffer of type EfieservedMemoryType.
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType 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 remaining to satisfy the request, then NULL is returned.
@param AllocationSize The number of bytes to allocate.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateReservedPool (
IN UINTN AllocationSize
);
/**
Allocates and zeros a buffer of type EfiBootServicesData.
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, 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 remaining to satisfy the
request, then NULL is returned.
@param AllocationSize The number of bytes to allocate and zero.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateZeroPool (
IN UINTN AllocationSize
);
/**
Allocates and zeros a buffer of type EfiRuntimeServicesData.
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, 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 remaining to satisfy the
request, then NULL is returned.
@param AllocationSize The number of bytes to allocate and zero.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateRuntimeZeroPool (
IN UINTN AllocationSize
);
/**
Allocates and zeros a buffer of type EfiReservedMemoryType.
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, 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 remaining to satisfy the
request, then NULL is returned.
@param AllocationSize The number of bytes to allocate and zero.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateReservedZeroPool (
IN UINTN AllocationSize
);
/**
Copies a buffer to an allocated buffer of type EfiBootServicesData.
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies
AllocationSize bytes from Buffer to the newly allocated buffer, 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 remaining to satisfy the request, then NULL is returned.
If Buffer is NULL, then ASSERT().
If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
@param AllocationSize The number of bytes to allocate and zero.
@param Buffer The buffer to copy to the allocated buffer.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
);
/**
Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies
AllocationSize bytes from Buffer to the newly allocated buffer, 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 remaining to satisfy the request, then NULL is returned.
If Buffer is NULL, then ASSERT().
If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
@param AllocationSize The number of bytes to allocate and zero.
@param Buffer The buffer to copy to the allocated buffer.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateRuntimeCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
);
/**
Copies a buffer to an allocated buffer of type EfiReservedMemoryType.
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies
AllocationSize bytes from Buffer to the newly allocated buffer, 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 remaining to satisfy the request, then NULL is returned.
If Buffer is NULL, then ASSERT().
If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().
@param AllocationSize The number of bytes to allocate and zero.
@param Buffer The buffer to copy to the allocated buffer.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateReservedCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
);
/**
Frees a buffer that was previously allocated with one of the 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
pool allocation services of the Memory Allocation Library.
If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,
then ASSERT().
@param Buffer Pointer to the buffer to free.
**/
VOID
EFIAPI
UncachedFreePool (
IN VOID *Buffer
);
/**
Allocates 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. 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 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
UncachedAllocateAlignedPool (
IN UINTN AllocationSize,
IN UINTN Alignment
);
/**
Allocates 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. 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 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
UncachedAllocateAlignedRuntimePool (
IN UINTN AllocationSize,
IN UINTN Alignment
);
/**
Allocates 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. 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 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
UncachedAllocateAlignedReservedPool (
IN UINTN AllocationSize,
IN UINTN Alignment
);
/**
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
UncachedAllocateAlignedZeroPool (
IN UINTN AllocationSize,
IN UINTN Alignment
);
/**
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.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID *
EFIAPI
UncachedAllocateAlignedRuntimeZeroPool (
IN UINTN AllocationSize,
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
UncachedAllocateAlignedReservedZeroPool (
IN UINTN AllocationSize,
IN UINTN Alignment
);
/**
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
UncachedAllocateAlignedCopyPool (
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
UncachedAllocateAlignedRuntimeCopyPool (
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
UncachedAllocateAlignedReservedCopyPool (
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
UncachedFreeAlignedPool (
IN VOID *Buffer
);
VOID
EFIAPI
UncachedSafeFreePool (
IN VOID *Buffer
);
#endif // __UNCACHED_MEMORY_ALLOCATION_LIB_H__

719
ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c
View File

@ -1,719 +0,0 @@
/** @file
UncachedMemoryAllocation lib that uses DXE Service to change cachability for
a buffer.
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2014, AMR Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Base.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UncachedMemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/ArmLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Protocol/Cpu.h>
STATIC EFI_CPU_ARCH_PROTOCOL *mCpu;
VOID *
UncachedInternalAllocatePages (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages
);
VOID *
UncachedInternalAllocateAlignedPages (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
IN UINTN Alignment
);
typedef struct {
EFI_PHYSICAL_ADDRESS Base;
VOID *Allocation;
UINTN Pages;
EFI_MEMORY_TYPE MemoryType;
BOOLEAN Allocated;
LIST_ENTRY Link;
UINT64 Attributes;
} FREE_PAGE_NODE;
STATIC LIST_ENTRY mPageList = INITIALIZE_LIST_HEAD_VARIABLE (mPageList);
// Track the size of the non-allocated buffer in the linked-list
STATIC UINTN mFreedBufferSize = 0;
/**
* This function firstly checks if the requested allocation can fit into one
* of the previously allocated buffer.
* If the requested allocation does not fit in the existing pool then
* the function makes a new allocation.
*
* @param MemoryType Type of memory requested for the new allocation
* @param Pages Number of requested page
* @param Alignment Required alignment
* @param Allocation Address of the newly allocated buffer
*
* @return EFI_SUCCESS If the function manage to allocate a buffer
* @return !EFI_SUCCESS If the function did not manage to allocate a buffer
*/
STATIC
EFI_STATUS
AllocatePagesFromList (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
IN UINTN Alignment,
OUT VOID **Allocation
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
FREE_PAGE_NODE *Node;
FREE_PAGE_NODE *NewNode;
UINTN AlignmentMask;
EFI_PHYSICAL_ADDRESS Memory;
EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
// Alignment must be a power of two or zero.
ASSERT ((Alignment & (Alignment - 1)) == 0);
//
// Look in our list for the smallest page that could satisfy the new allocation
//
Node = NULL;
NewNode = NULL;
for (Link = mPageList.ForwardLink; Link != &mPageList; Link = Link->ForwardLink) {
Node = BASE_CR (Link, FREE_PAGE_NODE, Link);
if ((Node->Allocated == FALSE) && (Node->MemoryType == MemoryType)) {
// We have a node that fits our requirements
if (((UINTN)Node->Base & (Alignment - 1)) == 0) {
// We found a page that matches the page size
if (Node->Pages == Pages) {
Node->Allocated = TRUE;
Node->Allocation = (VOID*)(UINTN)Node->Base;
*Allocation = Node->Allocation;
// Update the size of the freed buffer
mFreedBufferSize -= Pages * EFI_PAGE_SIZE;
return EFI_SUCCESS;
} else if (Node->Pages > Pages) {
if (NewNode == NULL) {
// It is the first node that could contain our new allocation
NewNode = Node;
} else if (NewNode->Pages > Node->Pages) {
// This node offers a smaller number of page.
NewNode = Node;
}
}
}
}
}
// Check if we have found a node that could contain our new allocation
if (NewNode != NULL) {
NewNode->Allocated = TRUE;
NewNode->Allocation = (VOID*)(UINTN)NewNode->Base;
*Allocation = NewNode->Allocation;
mFreedBufferSize -= NewNode->Pages * EFI_PAGE_SIZE;
return EFI_SUCCESS;
}
//
// Otherwise, we need to allocate a new buffer
//
// We do not want to over-allocate in case the alignment requirement does not
// require extra pages
if (Alignment > EFI_PAGE_SIZE) {
AlignmentMask = Alignment - 1;
Pages += EFI_SIZE_TO_PAGES (Alignment);
} else {
AlignmentMask = 0;
}
Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gDS->GetMemorySpaceDescriptor (Memory, &Descriptor);
if (EFI_ERROR (Status)) {
goto FreePages;
}
Status = gDS->SetMemorySpaceAttributes (Memory, EFI_PAGES_TO_SIZE (Pages),
EFI_MEMORY_WC);
if (EFI_ERROR (Status)) {
goto FreePages;
}
//
// EFI_CPU_ARCH_PROTOCOL::SetMemoryAttributes() will preserve the original
// memory type attribute if no memory type is passed. Permission attributes
// will be replaced, so EFI_MEMORY_RO will be removed if present (although
// it would be a bug if that were the case for an AllocatePages() allocation)
//
Status = mCpu->SetMemoryAttributes (mCpu, Memory, EFI_PAGES_TO_SIZE (Pages),
EFI_MEMORY_XP);
if (EFI_ERROR (Status)) {
goto FreePages;
}
InvalidateDataCacheRange ((VOID *)(UINTN)Memory, EFI_PAGES_TO_SIZE (Pages));
NewNode = AllocatePool (sizeof (FREE_PAGE_NODE));
if (NewNode == NULL) {
ASSERT (FALSE);
Status = EFI_OUT_OF_RESOURCES;
goto FreePages;
}
NewNode->Base = Memory;
NewNode->Allocation = (VOID*)(((UINTN)Memory + AlignmentMask) & ~AlignmentMask);
NewNode->Pages = Pages;
NewNode->Allocated = TRUE;
NewNode->MemoryType = MemoryType;
NewNode->Attributes = Descriptor.Attributes;
InsertTailList (&mPageList, &NewNode->Link);
*Allocation = NewNode->Allocation;
return EFI_SUCCESS;
FreePages:
gBS->FreePages (Memory, Pages);
return Status;
}
/**
* Free the memory allocation
*
* This function will actually try to find the allocation in the linked list.
* And it will then mark the entry as freed.
*
* @param Allocation Base address of the buffer to free
*
* @return EFI_SUCCESS The allocation has been freed
* @return EFI_NOT_FOUND The allocation was not found in the pool.
* @return EFI_INVALID_PARAMETER If Allocation is NULL
*
*/
STATIC
EFI_STATUS
FreePagesFromList (
IN VOID *Allocation
)
{
LIST_ENTRY *Link;
FREE_PAGE_NODE *Node;
if (Allocation == NULL) {
return EFI_INVALID_PARAMETER;
}
for (Link = mPageList.ForwardLink; Link != &mPageList; Link = Link->ForwardLink) {
Node = BASE_CR (Link, FREE_PAGE_NODE, Link);
if ((UINTN)Node->Allocation == (UINTN)Allocation) {
Node->Allocated = FALSE;
// Update the size of the freed buffer
mFreedBufferSize += Node->Pages * EFI_PAGE_SIZE;
// If the size of the non-allocated reaches the threshold we raise a warning.
// It might be an expected behaviour in some cases.
// We might device to free some of these buffers later on.
if (mFreedBufferSize > PcdGet64 (PcdArmFreeUncachedMemorySizeThreshold)) {
DEBUG ((EFI_D_WARN, "Warning: The list of non-allocated buffer has reach the threshold.\n"));
}
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
* This function is automatically invoked when the driver exits
* It frees all the non-allocated memory buffer.
* This function is not responsible to free allocated buffer (eg: case of memory leak,
* runtime allocation).
*/
EFI_STATUS
EFIAPI
UncachedMemoryAllocationLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
return gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&mCpu);
}
EFI_STATUS
EFIAPI
UncachedMemoryAllocationLibDestructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
LIST_ENTRY *Link;
FREE_PAGE_NODE *OldNode;
// Test if the list is empty
Link = mPageList.ForwardLink;
if (Link == &mPageList) {
return EFI_SUCCESS;
}
// Free all the pages and nodes
do {
OldNode = BASE_CR (Link, FREE_PAGE_NODE, Link);
// Point to the next entry
Link = Link->ForwardLink;
// We only free the non-allocated buffer
if (OldNode->Allocated == FALSE) {
gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)OldNode->Base, OldNode->Pages);
gDS->SetMemorySpaceAttributes ((EFI_PHYSICAL_ADDRESS)(UINTN)OldNode->Base,
EFI_PAGES_TO_SIZE (OldNode->Pages), OldNode->Attributes);
RemoveEntryList (&OldNode->Link);
FreePool (OldNode);
}
} while (Link != &mPageList);
return EFI_SUCCESS;
}
/**
Converts a cached or uncached address to a physical address suitable for use in SoC registers.
@param VirtualAddress The pointer to convert.
@return The physical address of the supplied virtual pointer.
**/
EFI_PHYSICAL_ADDRESS
ConvertToPhysicalAddress (
IN VOID *VirtualAddress
)
{
return (EFI_PHYSICAL_ADDRESS)(UINTN)VirtualAddress;
}
VOID *
UncachedInternalAllocatePages (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages
)
{
return UncachedInternalAllocateAlignedPages (MemoryType, Pages, EFI_PAGE_SIZE);
}
VOID *
EFIAPI
UncachedAllocatePages (
IN UINTN Pages
)
{
return UncachedInternalAllocatePages (EfiBootServicesData, Pages);
}
VOID *
EFIAPI
UncachedAllocateRuntimePages (
IN UINTN Pages
)
{
return UncachedInternalAllocatePages (EfiRuntimeServicesData, Pages);
}
VOID *
EFIAPI
UncachedAllocateReservedPages (
IN UINTN Pages
)
{
return UncachedInternalAllocatePages (EfiReservedMemoryType, Pages);
}
VOID
EFIAPI
UncachedFreePages (
IN VOID *Buffer,
IN UINTN Pages
)
{
UncachedFreeAlignedPages (Buffer, Pages);
return;
}
VOID *
UncachedInternalAllocateAlignedPages (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
IN UINTN Alignment
)
{
EFI_STATUS Status;
VOID *Allocation;
if (Pages == 0) {
return NULL;
}
Allocation = NULL;
Status = AllocatePagesFromList (MemoryType, Pages, Alignment, &Allocation);
if (EFI_ERROR (Status)) {
ASSERT_EFI_ERROR (Status);
return NULL;
} else {
return Allocation;
}
}
VOID
EFIAPI
UncachedFreeAlignedPages (
IN VOID *Buffer,
IN UINTN Pages
)
{
FreePagesFromList (Buffer);
}
VOID *
UncachedInternalAllocateAlignedPool (
IN EFI_MEMORY_TYPE PoolType,
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
VOID *AlignedAddress;
//
// Alignment must be a power of two or zero.
//
ASSERT ((Alignment & (Alignment - 1)) == 0);
if (Alignment < EFI_PAGE_SIZE) {
Alignment = EFI_PAGE_SIZE;
}
AlignedAddress = UncachedInternalAllocateAlignedPages (PoolType, EFI_SIZE_TO_PAGES (AllocationSize), Alignment);
if (AlignedAddress == NULL) {
return NULL;
}
return (VOID *) AlignedAddress;
}
VOID *
EFIAPI
UncachedAllocateAlignedPool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedPool (EfiBootServicesData, AllocationSize, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedRuntimePool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedPool (EfiRuntimeServicesData, AllocationSize, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedReservedPool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedPool (EfiReservedMemoryType, AllocationSize, Alignment);
}
VOID *
UncachedInternalAllocateAlignedZeroPool (
IN EFI_MEMORY_TYPE PoolType,
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
VOID *Memory;
Memory = UncachedInternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);
if (Memory != NULL) {
Memory = ZeroMem (Memory, AllocationSize);
}
return Memory;
}
VOID *
EFIAPI
UncachedAllocateAlignedZeroPool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedZeroPool (EfiBootServicesData, AllocationSize, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedRuntimeZeroPool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedZeroPool (EfiRuntimeServicesData, AllocationSize, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedReservedZeroPool (
IN UINTN AllocationSize,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedZeroPool (EfiReservedMemoryType, AllocationSize, Alignment);
}
VOID *
UncachedInternalAllocateAlignedCopyPool (
IN EFI_MEMORY_TYPE PoolType,
IN UINTN AllocationSize,
IN CONST VOID *Buffer,
IN UINTN Alignment
)
{
VOID *Memory;
ASSERT (Buffer != NULL);
ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));
Memory = UncachedInternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);
if (Memory != NULL) {
Memory = CopyMem (Memory, Buffer, AllocationSize);
}
return Memory;
}
VOID *
EFIAPI
UncachedAllocateAlignedCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedCopyPool (EfiBootServicesData, AllocationSize, Buffer, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedRuntimeCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer, Alignment);
}
VOID *
EFIAPI
UncachedAllocateAlignedReservedCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer,
IN UINTN Alignment
)
{
return UncachedInternalAllocateAlignedCopyPool (EfiReservedMemoryType, AllocationSize, Buffer, Alignment);
}
VOID
EFIAPI
UncachedFreeAlignedPool (
IN VOID *Allocation
)
{
UncachedFreePages (Allocation, 0);
}
VOID *
UncachedInternalAllocatePool (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN AllocationSize
)
{
UINTN CacheLineLength = ArmCacheWritebackGranule ();
return UncachedInternalAllocateAlignedPool (MemoryType, AllocationSize, CacheLineLength);
}
VOID *
EFIAPI
UncachedAllocatePool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocatePool (EfiBootServicesData, AllocationSize);
}
VOID *
EFIAPI
UncachedAllocateRuntimePool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocatePool (EfiRuntimeServicesData, AllocationSize);
}
VOID *
EFIAPI
UncachedAllocateReservedPool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocatePool (EfiReservedMemoryType, AllocationSize);
}
VOID *
UncachedInternalAllocateZeroPool (
IN EFI_MEMORY_TYPE PoolType,
IN UINTN AllocationSize
)
{
VOID *Memory;
Memory = UncachedInternalAllocatePool (PoolType, AllocationSize);
if (Memory != NULL) {
Memory = ZeroMem (Memory, AllocationSize);
}
return Memory;
}
VOID *
EFIAPI
UncachedAllocateZeroPool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocateZeroPool (EfiBootServicesData, AllocationSize);
}
VOID *
EFIAPI
UncachedAllocateRuntimeZeroPool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);
}
VOID *
EFIAPI
UncachedAllocateReservedZeroPool (
IN UINTN AllocationSize
)
{
return UncachedInternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);
}
VOID *
UncachedInternalAllocateCopyPool (
IN EFI_MEMORY_TYPE PoolType,
IN UINTN AllocationSize,
IN CONST VOID *Buffer
)
{
VOID *Memory;
ASSERT (Buffer != NULL);
ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));
Memory = UncachedInternalAllocatePool (PoolType, AllocationSize);
if (Memory != NULL) {
Memory = CopyMem (Memory, Buffer, AllocationSize);
}
return Memory;
}
VOID *
EFIAPI
UncachedAllocateCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
)
{
return UncachedInternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);
}
VOID *
EFIAPI
UncachedAllocateRuntimeCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
)
{
return UncachedInternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);
}
VOID *
EFIAPI
UncachedAllocateReservedCopyPool (
IN UINTN AllocationSize,
IN CONST VOID *Buffer
)
{
return UncachedInternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);
}
VOID
EFIAPI
UncachedFreePool (
IN VOID *Buffer
)
{
UncachedFreeAlignedPool (Buffer);
}
VOID
EFIAPI
UncachedSafeFreePool (
IN VOID *Buffer
)
{
if (Buffer != NULL) {
UncachedFreePool (Buffer);
Buffer = NULL;
}
}

50
ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf
View File

@ -1,50 +0,0 @@
#/** @file
#
# UncachedMemoryAllocation lib that uses DXE Service to change cachability for
# a buffer.
#
# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = UncachedMemoryAllocationLib
FILE_GUID = DC101A1A-7525-429B-84AF-EEAA630E576C
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
LIBRARY_CLASS = UncachedMemoryAllocationLib
CONSTRUCTOR = UncachedMemoryAllocationLibConstructor
DESTRUCTOR = UncachedMemoryAllocationLibDestructor
[Sources.common]
UncachedMemoryAllocationLib.c
[Packages]
ArmPkg/ArmPkg.dec
MdePkg/MdePkg.dec
[LibraryClasses]
BaseLib
ArmLib
MemoryAllocationLib
PcdLib
DxeServicesTableLib
CacheMaintenanceLib
[Pcd]
gArmTokenSpaceGuid.PcdArmFreeUncachedMemorySizeThreshold
[Protocols]
gEfiCpuArchProtocolGuid
[Depex]
gEfiCpuArchProtocolGuid