mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-24 11:45:27 +01:00
156 lines
3.4 KiB
C
156 lines
3.4 KiB
C
/** @file
|
|
Data structure and functions to allocate and free memory space.
|
|
|
|
Copyright (c) 2006 - 2008, Intel Corporation. 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 _IMEM_H_
|
|
#define _IMEM_H_
|
|
|
|
#if defined (MDE_CPU_IPF)
|
|
///
|
|
/// For Itanium machines make the default allocations 8K aligned
|
|
///
|
|
#define EFI_ACPI_RUNTIME_PAGE_ALLOCATION_ALIGNMENT (EFI_PAGE_SIZE * 2)
|
|
#define DEFAULT_PAGE_ALLOCATION (EFI_PAGE_SIZE * 2)
|
|
|
|
#else
|
|
///
|
|
/// For genric EFI machines make the default allocations 4K aligned
|
|
///
|
|
#define EFI_ACPI_RUNTIME_PAGE_ALLOCATION_ALIGNMENT (EFI_PAGE_SIZE)
|
|
#define DEFAULT_PAGE_ALLOCATION (EFI_PAGE_SIZE)
|
|
|
|
#endif
|
|
|
|
|
|
//
|
|
// MEMORY_MAP_ENTRY
|
|
//
|
|
|
|
#define MEMORY_MAP_SIGNATURE SIGNATURE_32('m','m','a','p')
|
|
typedef struct {
|
|
UINTN Signature;
|
|
LIST_ENTRY Link;
|
|
BOOLEAN FromPages;
|
|
|
|
EFI_MEMORY_TYPE Type;
|
|
UINT64 Start;
|
|
UINT64 End;
|
|
|
|
UINT64 VirtualStart;
|
|
UINT64 Attribute;
|
|
} MEMORY_MAP;
|
|
|
|
//
|
|
// Internal prototypes
|
|
//
|
|
|
|
|
|
/**
|
|
Internal function. Used by the pool functions to allocate pages
|
|
to back pool allocation requests.
|
|
|
|
@param PoolType The type of memory for the new pool pages
|
|
@param NumberOfPages No of pages to allocate
|
|
@param Alignment Bits to align.
|
|
|
|
@return The allocated memory, or NULL
|
|
|
|
**/
|
|
VOID *
|
|
CoreAllocatePoolPages (
|
|
IN EFI_MEMORY_TYPE PoolType,
|
|
IN UINTN NumberOfPages,
|
|
IN UINTN Alignment
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Internal function. Frees pool pages allocated via AllocatePoolPages ()
|
|
|
|
@param Memory The base address to free
|
|
@param NumberOfPages The number of pages to free
|
|
|
|
**/
|
|
VOID
|
|
CoreFreePoolPages (
|
|
IN EFI_PHYSICAL_ADDRESS Memory,
|
|
IN UINTN NumberOfPages
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Internal function to allocate pool of a particular type.
|
|
Caller must have the memory lock held
|
|
|
|
@param PoolType Type of pool to allocate
|
|
@param Size The amount of pool to allocate
|
|
|
|
@return The allocate pool, or NULL
|
|
|
|
**/
|
|
VOID *
|
|
CoreAllocatePoolI (
|
|
IN EFI_MEMORY_TYPE PoolType,
|
|
IN UINTN Size
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Internal function to free a pool entry.
|
|
Caller must have the memory lock held
|
|
|
|
@param Buffer The allocated pool entry to free
|
|
|
|
@retval EFI_INVALID_PARAMETER Buffer not valid
|
|
@retval EFI_SUCCESS Buffer successfully freed.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
CoreFreePoolI (
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Enter critical section by gaining lock on gMemoryLock.
|
|
|
|
**/
|
|
VOID
|
|
CoreAcquireMemoryLock (
|
|
VOID
|
|
);
|
|
|
|
|
|
/**
|
|
Exit critical section by releasing lock on gMemoryLock.
|
|
|
|
**/
|
|
VOID
|
|
CoreReleaseMemoryLock (
|
|
VOID
|
|
);
|
|
|
|
|
|
//
|
|
// Internal Global data
|
|
//
|
|
|
|
extern EFI_LOCK gMemoryLock;
|
|
extern LIST_ENTRY gMemoryMap;
|
|
extern LIST_ENTRY mGcdMemorySpaceMap;
|
|
#endif
|