571 lines
20 KiB
C
571 lines
20 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
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*
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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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*
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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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*
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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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*
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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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*
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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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/**
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* @defgroup los_memory Dynamic memory
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* @ingroup kernel
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*/
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#ifndef _LOS_MEMORY_H
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#define _LOS_MEMORY_H
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#include "los_config.h"
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#include "los_list.h"
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#include "los_debug.h"
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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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#if (LOSCFG_PLATFORM_EXC == 1)
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UINT32 OsMemExcInfoGet(UINT32 memNumMax, MemInfoCB *memExcInfo);
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#endif
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/**
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* @ingroup los_memory
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* Starting address of the memory.
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*/
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#define OS_SYS_MEM_ADDR LOSCFG_SYS_HEAP_ADDR
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#if (LOSCFG_MEM_LEAKCHECK == 1)
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/**
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* @ingroup los_memory
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* @brief Print function call stack information of all used nodes.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to print function call stack information of all used nodes.</li>
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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*
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* @retval none.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern VOID LOS_MemUsedNodeShow(VOID *pool);
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#endif
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#if (LOSCFG_MEM_MUL_POOL == 1)
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/**
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* @ingroup los_memory
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* @brief Deinitialize dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to deinitialize the dynamic memory of a doubly linked list.</li>
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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*
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* @retval #OS_ERROR The dynamic memory fails to be deinitialized.
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* @retval #LOS_OK The dynamic memory is successfully deinitialized.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemDeInit(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Print information about all pools.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to print information about all pools.</li>
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* </ul>
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*
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* @retval #UINT32 The pool number.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemPoolList(VOID);
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#endif
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#if (LOSCFG_MEM_FREE_BY_TASKID == 1)
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/**
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* @ingroup los_memory
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* @brief Free memory nodes allocated by the specified task.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to free all memory nodes allocated by the specified task.</li>
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* </ul>
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*
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* @param pool [IN] The memory pool address.
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* @param taskID [IN] The task ID and all memory nodes allocated by this task will be freed.
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*
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* @retval #OS_ERROR The memory pool is NULL or the task ID is invalid.
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* @retval #LOS_OK All memory nodes allocated by this task are freed successfully.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemFreeByTaskID(VOID *pool, UINT32 taskID);
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#endif
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#if (LOSCFG_MEM_MUL_REGIONS == 1)
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typedef struct {
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VOID *startAddress;
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UINT32 length;
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} LosMemRegion;
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/**
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* @ingroup los_memory
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* @brief Initialize multiple non-continuous memory regions.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to initialize multiple non-continuous memory regions. If the starting address of a pool is
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* specified, the memory regions will be linked to the pool as free nodes. Otherwise, the first memory region will
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* be initialized as a * new pool, and the rest regions will be linked as free nodes to the new pool.</li>
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* </ul>
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*
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* @attention
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* <ul>
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* <li>If the starting address of a memory pool is specified, the start address of the non-continuous memory regions should be
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* greater than the end address of the memory pool.</li>
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* <li>The multiple non-continuous memory regions shouldn't conflict with each other.</li>
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* </ul>
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*
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* @param pool [IN] The memory pool address. If NULL is specified, the start address of first memory region will be
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* initialized as the memory pool address. If not NULL, it should be a valid address of a memory pool.
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* @param memRegions [IN] The LosMemRegion array that contains multiple non-continuous memory regions. The start address
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* of the memory regions are placed in ascending order.
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* @param memRegionCount [IN] The count of non-continuous memory regions, and it should be the length of the LosMemRegion array.
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*
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* @retval #LOS_NOK The multiple non-continuous memory regions fails to be initialized.
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* @retval #LOS_OK The multiple non-continuous memory regions is initialized successfully.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemRegionsAdd(VOID *pool, const LosMemRegion * const memRegions, UINT32 memRegionCount);
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#endif
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/**
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* @ingroup los_memory
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* Memory pool extern information structure
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*/
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typedef struct {
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UINT32 totalUsedSize;
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UINT32 totalFreeSize;
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UINT32 maxFreeNodeSize;
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UINT32 usedNodeNum;
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UINT32 freeNodeNum;
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#if (LOSCFG_MEM_WATERLINE == 1)
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UINT32 usageWaterLine;
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#endif
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} LOS_MEM_POOL_STATUS;
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/**
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* @ingroup los_memory
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* @brief Initialize dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to initialize the dynamic memory of a doubly linked list.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The size parameter value should match the following two conditions :
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* 1) Be less than or equal to the Memory pool size;
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* 2) Be greater than the size of OS_MEM_MIN_POOL_SIZE.</li>
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* <li>Call this API when dynamic memory needs to be initialized during the startup of Huawei LiteOS.</li>
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* <li>The parameter input must be four byte-aligned.</li>
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* <li>The init area [pool, pool + size] should not conflict with other pools.</li>
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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* @param size [IN] Memory size.
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*
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* @retval #OS_ERROR The dynamic memory fails to be initialized.
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* @retval #LOS_OK The dynamic memory is successfully initialized.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemInit(VOID *pool, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Allocate dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate a memory block of which the size is specified.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The size of the input parameter size must be four byte-aligned.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the memory block to be allocated.
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* @param size [IN] Size of the memory block to be allocated (unit: byte).
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*
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* @retval #NULL The memory fails to be allocated.
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* @retval #VOID* The memory is successfully allocated with the starting address of the allocated memory block
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* returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemRealloc | LOS_MemAllocAlign | LOS_MemFree
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*/
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extern VOID *LOS_MemAlloc(VOID *pool, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Free dynamic memory.
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*
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* @par Description:
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* <li>This API is used to free specified dynamic memory that has been allocated.</li>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The input ptr parameter must be allocated by LOS_MemAlloc or LOS_MemAllocAlign or LOS_MemRealloc.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the dynamic memory block to be freed.
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* @param ptr [IN] Starting address of the memory block to be freed.
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*
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* @retval #LOS_NOK The memory block fails to be freed because the starting address of the memory block is
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* invalid, or the memory overwriting occurs.
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* @retval #LOS_OK The memory block is successfully freed.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemRealloc | LOS_MemAllocAlign
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*/
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extern UINT32 LOS_MemFree(VOID *pool, VOID *ptr);
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/**
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* @ingroup los_memory
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* @brief Re-allocate a memory block.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate a new memory block of which the size is specified by size if the original memory
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* block size is insufficient. The new memory block will copy the data in the original memory block of which the
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* address is specified by ptr. The size of the new memory block determines the maximum size of data to be copied.
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* After the new memory block is created, the original one is freed.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The input ptr parameter must be allocated by LOS_MemAlloc or LOS_MemAllocAlign.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The size of the input parameter size must be aligned as follows: 1) if the ptr is allocated by LOS_MemAlloc,
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* it must be four byte-aligned; 2) if the ptr is allocated by LOS_MemAllocAlign, it must be aligned with the size of
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* the input parameter boundary of LOS_MemAllocAlign.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the original and new memory blocks.
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* @param ptr [IN] Address of the original memory block.
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* @param size [IN] Size of the new memory block.
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*
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* @retval #NULL The memory fails to be re-allocated.
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* @retval #VOID* The memory is successfully re-allocated with the starting address of the new memory block returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemAllocAlign | LOS_MemFree
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*/
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extern VOID *LOS_MemRealloc(VOID *pool, VOID *ptr, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Allocate aligned memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate memory blocks of specified size and of which the starting addresses are aligned on
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* a specified boundary.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The alignment parameter value must be a power of 2 with the minimum value being 4.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the memory blocks to be allocated.
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* @param size [IN] Size of the memory to be allocated.
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* @param boundary [IN] Boundary on which the memory is aligned.
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*
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* @retval #NULL The memory fails to be allocated.
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* @retval #VOID* The memory is successfully allocated with the starting address of the allocated memory returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemRealloc | LOS_MemFree
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*/
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extern VOID *LOS_MemAllocAlign(VOID *pool, UINT32 size, UINT32 boundary);
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/**
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* @ingroup los_memory
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* @brief Get the size of memory pool's size.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the size of memory pool' total size.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The size of the memory pool.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 LOS_MemPoolSizeGet(const VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Get the size of memory totally used.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the size of memory totally used in memory pool.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The size of the memory pool used.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 LOS_MemTotalUsedGet(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Get the information of memory pool.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the information of memory pool.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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* @param poolStatus [IN] A pointer for storage the pool status
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL or invalid.
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* @retval #LOS_OK Success to get memory information.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 LOS_MemInfoGet(VOID *pool, LOS_MEM_POOL_STATUS *poolStatus);
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/**
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* @ingroup los_memory
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* @brief Get the number of free node in every size.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the number of free node in every size.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The address of the last used node that casts to UINT32.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 LOS_MemFreeNodeShow(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Check the memory pool integrity.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to check the memory pool integrity.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>LOS_MemIntegrityCheck will be called by malloc function when the macro of LOSCFG_BASE_MEM_NODE_INTEGRITY_CHECK
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* is defined in LiteOS.</li>
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* <li>LOS_MemIntegrityCheck function can be called by user anytime.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The memory pool (pool) is impaired.
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* @retval #LOS_OK The memory pool (pool) is integrated.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 LOS_MemIntegrityCheck(const VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Enable memory pool to support no internal lock during using interfaces.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to enable memory pool to support no internal lock during using interfaces,</li>
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* <li>such as LOS_MemAlloc/LOS_MemAllocAlign/LOS_MemRealloc/LOS_MemFree and so on.
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* </ul>
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|
* @attention
|
|
* <ul>
|
|
* <li>The memory pool does not support multi-threaded concurrent application scenarios.
|
|
* <li>If you want to use this function, you need to call this interface before the memory
|
|
* pool is used, it cannot be called during the trial period.</li>
|
|
* </ul>
|
|
*
|
|
* @param pool [IN] Starting address of memory.
|
|
*
|
|
* @retval node.
|
|
* @par Dependency:
|
|
* <ul>
|
|
* <li>los_memory.h: the header file that contains the API declaration.</li>
|
|
* </ul>
|
|
* @see None.
|
|
*/
|
|
|
|
/* Supposing a Second Level Index: SLI = 3. */
|
|
#define OS_MEM_SLI 3
|
|
/* Giving 1 free list for each small bucket: 4, 8, 12, up to 124. */
|
|
#define OS_MEM_SMALL_BUCKET_COUNT 31
|
|
#define OS_MEM_SMALL_BUCKET_MAX_SIZE 128
|
|
/* Giving 2^OS_MEM_SLI free lists for each large bucket. */
|
|
#define OS_MEM_LARGE_BUCKET_COUNT 24
|
|
/* OS_MEM_SMALL_BUCKET_MAX_SIZE to the power of 2 is 7. */
|
|
#define OS_MEM_LARGE_START_BUCKET 7
|
|
|
|
/* The count of free list. */
|
|
#define OS_MEM_FREE_LIST_COUNT (OS_MEM_SMALL_BUCKET_COUNT + (OS_MEM_LARGE_BUCKET_COUNT << OS_MEM_SLI))
|
|
/* The bitmap is used to indicate whether the free list is empty, 1: not empty, 0: empty. */
|
|
#define OS_MEM_BITMAP_WORDS ((OS_MEM_FREE_LIST_COUNT >> 5) + 1)
|
|
|
|
struct OsMemNodeHead {
|
|
#if (LOSCFG_BASE_MEM_NODE_INTEGRITY_CHECK == 1)
|
|
UINT32 magic;
|
|
#endif
|
|
#if (LOSCFG_MEM_LEAKCHECK == 1)
|
|
UINTPTR linkReg[LOSCFG_MEM_RECORD_LR_CNT];
|
|
#endif
|
|
union {
|
|
struct OsMemNodeHead *prev; /* The prev is used for current node points to the previous node */
|
|
struct OsMemNodeHead *next; /* The next is used for sentinel node points to the expand node */
|
|
} ptr;
|
|
#if (LOSCFG_TASK_MEM_USED == 1)
|
|
UINT32 taskID;
|
|
UINT32 sizeAndFlag;
|
|
#elif (LOSCFG_MEM_FREE_BY_TASKID == 1)
|
|
UINT32 taskID : 6;
|
|
UINT32 sizeAndFlag : 26;
|
|
#else
|
|
UINT32 sizeAndFlag;
|
|
#endif
|
|
};
|
|
|
|
struct OsMemFreeNodeHead {
|
|
struct OsMemNodeHead header;
|
|
struct OsMemFreeNodeHead *prev;
|
|
struct OsMemFreeNodeHead *next;
|
|
};
|
|
|
|
struct OsMemPoolInfo {
|
|
VOID *pool;
|
|
UINT32 totalSize;
|
|
UINT32 attr;
|
|
#if (LOSCFG_MEM_WATERLINE == 1)
|
|
UINT32 waterLine; /* Maximum usage size in a memory pool */
|
|
UINT32 curUsedSize; /* Current usage size in a memory pool */
|
|
#endif
|
|
#if (LOSCFG_MEM_MUL_REGIONS == 1)
|
|
UINT32 totalGapSize;
|
|
#endif
|
|
};
|
|
|
|
struct OsMemPoolHead {
|
|
struct OsMemPoolInfo info;
|
|
UINT32 freeListBitmap[OS_MEM_BITMAP_WORDS];
|
|
struct OsMemFreeNodeHead *freeList[OS_MEM_FREE_LIST_COUNT];
|
|
#if (LOSCFG_MEM_MUL_POOL == 1)
|
|
VOID *nextPool;
|
|
#endif
|
|
};
|
|
|
|
extern VOID LOS_MemUnlockEnable(VOID *pool);
|
|
|
|
extern UINT32 OsMemSystemInit(VOID);
|
|
extern VOID OsTaskMemUsed(VOID *pool, UINT32 *tskMemInfoBuf, UINT32 tskMemInfoCnt);
|
|
|
|
#ifdef __cplusplus
|
|
#if __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* _LOS_MEMORY_H */
|