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| author | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-23 07:35:34 +0000 |
|---|---|---|
| committer | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-23 07:35:34 +0000 |
| commit | ec90508b3d3ff22a698a0446cb09d551d7466045 (patch) | |
| tree | 35f8e34be2eb7198e3d61acf3d9a35a8ed8593e4 /MdeModulePkg/Core/Dxe/Mem/Imem.h | |
| parent | 1046284db9ec38ad6478160a57d8030331d6c5b2 (diff) | |
| download | edk2-ec90508b3d3ff22a698a0446cb09d551d7466045.tar.gz edk2-ec90508b3d3ff22a698a0446cb09d551d7466045.tar.bz2 edk2-ec90508b3d3ff22a698a0446cb09d551d7466045.zip | |
move header files in MdeModulePkg\Core\Dxe except DxeMain.h into their corresponding sub-module directories. It is used to provide good modularity.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5949 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Core/Dxe/Mem/Imem.h')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/Mem/Imem.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/MdeModulePkg/Core/Dxe/Mem/Imem.h b/MdeModulePkg/Core/Dxe/Mem/Imem.h new file mode 100644 index 0000000000..8a60d59f4c --- /dev/null +++ b/MdeModulePkg/Core/Dxe/Mem/Imem.h @@ -0,0 +1,155 @@ +/** @file
+ Data structure and functions to allocate and free memory space.
+
+Copyright (c) 2006 - 2008, Intel Corporation. <BR>
+All rights reserved. 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 EFI_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
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