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148 lines
5.3 KiB
148 lines
5.3 KiB
/* ----------------------------------------------------------------------------
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* Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
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* Description: LiteOS Memory Module Private HeadFile
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* Author: Huawei LiteOS Team
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* Create: 2013-01-01
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --------------------------------------------------------------------------- */
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//定义内存管理的私有接口和数据结构。
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#ifndef _LOS_MEMORY_PRI_H
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#define _LOS_MEMORY_PRI_H
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#include "los_memory.h"
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#include "los_memstat_pri.h"
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#include "los_slab_pri.h"
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#include "los_spinlock.h"
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#include "los_misc_pri.h"
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//关于内存管理的私有接口声明
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/* Memory pool information structure */
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#if defined(LOSCFG_KERNEL_MEM_BESTFIT)
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typedef struct {
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VOID *pool; /* Starting address of a memory pool */
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UINT32 poolSize; /* Memory pool size */
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#ifdef LOSCFG_MEM_TASK_STAT
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Memstat stat;
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#endif
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#ifdef LOSCFG_MEM_MUL_POOL
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VOID *nextPool;
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#endif
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#ifdef LOSCFG_KERNEL_MEM_SLAB_EXTENTION
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struct LosSlabControlHeader slabCtrlHdr;
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#endif
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} LosMemPoolInfo;
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//用于描述内存池的信息，包括内存池的起始地址、大小等信息。
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#elif defined(LOSCFG_KERNEL_MEM_BESTFIT_LITTLE)
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typedef struct LosHeapManager {
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struct LosHeapNode *head;
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struct LosHeapNode *tail;
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UINT32 size;
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#ifdef LOSCFG_MEM_TASK_STAT
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Memstat stat;
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#endif
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#ifdef LOSCFG_MEM_MUL_POOL
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VOID *nextPool;
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#endif
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#ifdef LOSCFG_KERNEL_MEM_SLAB_EXTENTION
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struct LosSlabControlHeader slabCtrlHdr;
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#endif
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} LosMemPoolInfo;
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#endif
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#define IS_ALIGNED(value, alignSize) ((((UINTPTR)(value)) & ((UINTPTR)((alignSize) - 1))) == 0)
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/* spinlock for mem module, only available on SMP mode */
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extern SPIN_LOCK_S g_memSpin;
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#define MEM_LOCK(state) LOS_SpinLockSave(&g_memSpin, &(state))
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#define MEM_UNLOCK(state) LOS_SpinUnlockRestore(&g_memSpin, (state))
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//用于系统内存的初始化。
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extern UINTPTR g_sys_mem_addr_end;
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extern UINT32 OsMemSystemInit(UINTPTR memStart);
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/* SLAB extention needs memory algorithms provide following internal apis */
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#ifdef LOSCFG_KERNEL_MEM_SLAB_EXTENTION
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extern VOID* OsMemAlloc(VOID *pool, UINT32 size);
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extern UINT32 OsMemFree(VOID *pool, const VOID *ptr);
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#endif /* LOSCFG_KERNEL_MEM_SLAB_EXTENTION */
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#ifdef LOSCFG_MEM_MUL_POOL
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extern UINT32 OsMemMulPoolInit(VOID *pool, UINT32 size);
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extern UINT32 OsMemMulPoolDeinit(const VOID *pool);
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extern VOID *OsMemMulPoolHeadGet(VOID);
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#else /* LOSCFG_MEM_MUL_POOL */
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//用于初始化多内存池，接受内存池的起始地址和大小作为参数。
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STATIC INLINE UINT32 OsMemMulPoolInit(VOID *pool, UINT32 size)
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{
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return LOS_OK;
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}
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//用于反初始化多内存池，接受内存池的指针作为参数。
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STATIC INLINE UINT32 OsMemMulPoolDeinit(const VOID *pool)
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{
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return LOS_OK;
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}
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#endif /* LOSCFG_MEM_MUL_POOL */
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#ifdef LOSCFG_EXC_INTERACTION
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//于初始化内存异常交互，接受内存起始地址作为参数。
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extern UINT32 OsMemExcInteractionInit(UINTPTR memStart);
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#endif
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#ifdef LOSCFG_MEM_LEAKCHECK
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//用于展示已使用的内存节点信息，接受内存池指针作为参数。
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extern VOID OsMemUsedNodeShow(VOID *pool);
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#endif
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//用于重置内存池的结束节点，接受内存池指针和前一个地址作为参数。
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extern VOID OsMemResetEndNode(VOID *pool, UINTPTR preAddr);
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//用于打印内存信息，接受内存池指针作为参数。
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extern VOID OsMemInfoPrint(const VOID *pool);
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//用于执行内存检查的 shell 命令，接受命令参数作为输入。
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extern UINT32 OsShellCmdMemCheck(INT32 argc, const CHAR *argv[]);
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//用于执行多重内存完整性检查。
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extern VOID OsMemIntegrityMultiCheck(VOID);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _LOS_MEMORY_PRI_H */
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