ecf2d82159
* Synchronize the code of the rt mart branch to the master branch.
* TTY device
* Add lwP code from rt-smart
* Add vnode in DFS, but DFS will be re-write for rt-smart
* There are three libcpu for rt-smart:
* arm/cortex-a, arm/aarch64
* riscv64
Co-authored-by: Rbb666 <zhangbingru@rt-thread.com>
Co-authored-by: zhkag <zhkag@foxmail.com>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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* Copyright (c) 2006-2020, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-10-28 Jesven first version
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*/
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#ifndef __LWP_MM_AREA_H__
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#define __LWP_MM_AREA_H__
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#include <string.h>
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#include <stdint.h>
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#include <lwp_avl.h>
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#ifdef RT_USING_USERSPACE
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum
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{
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MM_AREA_TYPE_PHY = 0, /* mm_area physical address is IO register or reserved memory no cached*/
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MM_AREA_TYPE_PHY_CACHED, /* mm_area physical address is IO register or reserved memory with cached */
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MM_AREA_TYPE_SHM, /* mm_area physical address is shared memory */
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MM_AREA_TYPE_DATA, /* mm_area physical address is alloced from page manager for data */
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MM_AREA_TYPE_TEXT, /* mm_area physical address is alloced from page manager for text */
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MM_AREA_TYPE_UNKNOW,
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};
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struct rt_mm_area_struct
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{
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size_t addr;
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size_t size;
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int type;
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};
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int lwp_map_area_insert(struct lwp_avl_struct **avl_tree, size_t addr, size_t size, int ma_type);
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void lwp_map_area_remove(struct lwp_avl_struct **avl_tree, size_t addr);
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struct lwp_avl_struct* lwp_map_find(struct lwp_avl_struct* ptree, size_t addr);
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struct lwp_avl_struct* lwp_map_find_first(struct lwp_avl_struct* ptree);
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size_t lwp_vmem_count(struct lwp_avl_struct *ptree);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif /*__LWP_MM_AREA_H__*/
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