76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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/*
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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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* 2021-02-12 lizhirui add 64-bit support for lwp_brk
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*/
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#ifndef __LWP_USER_MM_H__
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#define __LWP_USER_MM_H__
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#include <rthw.h>
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#include <rtthread.h>
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#ifdef ARCH_MM_MMU
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#include <lwp.h>
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#include <mmu.h>
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#include <mm_aspace.h>
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#include <mm_fault.h>
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#include <mm_page.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define LWP_MAP_FLAG_NONE 0x0000
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#define LWP_MAP_FLAG_NOCACHE 0x0001
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int lwp_user_space_init(struct rt_lwp *lwp, rt_bool_t is_fork);
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void lwp_unmap_user_space(struct rt_lwp *lwp);
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int lwp_unmap_user(struct rt_lwp *lwp, void *va);
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void *lwp_map_user(struct rt_lwp *lwp, void *map_va, size_t map_size, rt_bool_t text);
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rt_varea_t lwp_map_user_varea(struct rt_lwp *lwp, void *map_va, size_t map_size);
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/* check LWP_MAP_FLAG_* */
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rt_varea_t lwp_map_user_varea_ext(struct rt_lwp *lwp, void *map_va, size_t map_size, size_t flags);
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void *lwp_map_user_phy(struct rt_lwp *lwp, void *map_va, void *map_pa, size_t map_size, rt_bool_t cached);
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int lwp_unmap_user_phy(struct rt_lwp *lwp, void *va);
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rt_base_t lwp_brk(void *addr);
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void* lwp_mmap2(void *addr, size_t length, int prot, int flags, int fd, off_t pgoffset);
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int lwp_munmap(void *addr);
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size_t lwp_get_from_user(void *dst, void *src, size_t size);
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size_t lwp_put_to_user(void *dst, void *src, size_t size);
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int lwp_user_accessable(void *addr, size_t size);
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size_t lwp_data_get(struct rt_lwp *lwp, void *dst, void *src, size_t size);
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size_t lwp_data_put(struct rt_lwp *lwp, void *dst, void *src, size_t size);
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void lwp_data_cache_flush(struct rt_lwp *lwp, void *vaddr, size_t size);
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static inline void *_lwp_v2p(struct rt_lwp *lwp, void *vaddr)
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{
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return rt_hw_mmu_v2p(lwp->aspace, vaddr);
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}
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static inline void *lwp_v2p(struct rt_lwp *lwp, void *vaddr)
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{
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RD_LOCK(lwp->aspace);
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void *paddr = _lwp_v2p(lwp, vaddr);
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RD_UNLOCK(lwp->aspace);
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return paddr;
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}
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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_USER_MM_H__*/
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