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>
41 lines
751 B
C
41 lines
751 B
C
/*
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* Copyright (c) 2006-2019, 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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* 2019-11-01 Jesven The first version
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*/
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#ifndef __PAGE_H__
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#define __PAGE_H__
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#ifdef RT_USING_USERSPACE
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typedef struct tag_region
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{
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size_t start;
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size_t end;
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} rt_region_t;
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void rt_page_init(rt_region_t reg);
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void *rt_pages_alloc(uint32_t size_bits);
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void rt_page_ref_inc(void *addr, uint32_t size_bits);
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int rt_page_ref_get(void *addr, uint32_t size_bits);
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int rt_pages_free(void *addr, uint32_t size_bits);
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void rt_pageinfo_dump(void);
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size_t rt_page_bits(size_t size);
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void rt_page_get_info(size_t *total_nr, size_t *free_nr);
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#endif
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#endif /*__PAGE_H__*/
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