eec78d9f5d
* [utest/mm] add testcase for create/init format codes of create/init in components/mm * [libcpu/aarch64] fix user stack check routine * [kservice] export API for utest * [utest/mm] testcase for aspace_map format & modify the files under components/mm related with aspace_map * [lwp/user_mm] add user_map_varea for mmap feature * [mm] rename rt_mm_fault_try_fix to rt_aspace_fault_try_fix * [utest/mm] testcase for synchronization * [mm] modify unmap api to improve throughput * [utest/mm] testcases for cache and varea map * [format] remove extra space * [utest/mm] fix testcase problem in header * [lwp] extend map_user_varea with a flag * [utest/mm] testcase for lwp_map_user_varea * [libcpu/arm/cortex-a] fix kernel space layout * [utest/mm] adjust for armv7 arch
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2006-2022, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2022-11-23 WangXiaoyao the first version
|
|
*/
|
|
#ifndef __MM_FLAG_H__
|
|
#define __MM_FLAG_H__
|
|
|
|
/**
|
|
* @brief mm_flag_t
|
|
* |max ------- 7|6 ----- 0|
|
|
* | control | align |
|
|
*
|
|
* there should be no more than 25 flags
|
|
*/
|
|
typedef unsigned long mm_flag_t;
|
|
|
|
#define _MMF_CNTL_SHIFT 7
|
|
#define _MMF_ALIGN_MASK 0x7f
|
|
#define _MMF_CNTL_MASK (~((1 << _MMF_CNTL_SHIFT) - 1))
|
|
#define _DEF_FLAG(index) (1 << (_MMF_CNTL_SHIFT + (index)))
|
|
|
|
enum mm_flag_cntl
|
|
{
|
|
/**
|
|
* @brief Indicate a possible COW mapping
|
|
*/
|
|
MMF_MAP_PRIVATE = _DEF_FLAG(0),
|
|
MMF_COW = _DEF_FLAG(1),
|
|
|
|
/**
|
|
* @brief [POSIX MAP_FIXED] When MAP_FIXED is set in the flags argument, the
|
|
* implementation is informed that the value of pa shall be addr, exactly.
|
|
* If a MAP_FIXED request is successful, the mapping established
|
|
* by mmap() replaces any previous mappings for the pages in the range
|
|
* [pa,pa+len) of the process.
|
|
*/
|
|
MMF_MAP_FIXED = _DEF_FLAG(2),
|
|
|
|
/**
|
|
* @brief The backup page frame is allocated and setted only until it is
|
|
* truly necessary by the user
|
|
*/
|
|
MMF_PREFETCH = _DEF_FLAG(3),
|
|
|
|
MMF_HUGEPAGE = _DEF_FLAG(4),
|
|
|
|
MMF_TEXT = _DEF_FLAG(5),
|
|
|
|
MMF_STATIC_ALLOC = _DEF_FLAG(6),
|
|
|
|
/**
|
|
* @brief a non-locked memory can be swapped out when required, this is
|
|
* reserved for future
|
|
*/
|
|
MMF_NONLOCKED = _DEF_FLAG(20),
|
|
|
|
/**
|
|
* @brief An alignment is specified in flags that the mapping must admit
|
|
*/
|
|
MMF_REQUEST_ALIGN = _DEF_FLAG(21),
|
|
};
|
|
|
|
#define MMF_GET_ALIGN(src) ((src & _MMF_ALIGN_MASK))
|
|
#define MMF_SET_ALIGN(src, align) \
|
|
((src & ~_MMF_ALIGN_MASK) | (__builtin_ffsl(align) - 1))
|
|
|
|
#define MMF_GET_CNTL(src) (src & _MMF_CNTL_MASK)
|
|
#define MMF_TEST_CNTL(src, flag) (src & flag)
|
|
#define MMF_SET_CNTL(src, flag) ((src) | (flag))
|
|
#define MMF_CLEAR_CNTL(src, flag) ((src) & ~(flag))
|
|
|
|
/**
|
|
* @brief Create Flags
|
|
*
|
|
* example: MMF_CREATE(0, 0)
|
|
* MMF_CREATE(MM_MAP_FIXED, 0x2000)
|
|
*
|
|
* Direct use of flag is also acceptable: (MMF_MAP_FIXED | MMF_PREFETCH)
|
|
*/
|
|
#define MMF_CREATE(cntl, align) \
|
|
((align) ? (MMF_SET_CNTL((mm_flag_t)0, (cntl) | MMF_REQUEST_ALIGN) | \
|
|
MMF_SET_ALIGN((mm_flag_t)0, (align))) \
|
|
: (MMF_SET_CNTL((mm_flag_t)0, (cntl) & ~MMF_REQUEST_ALIGN)))
|
|
|
|
#undef _DEF_FLAG
|
|
#endif /* __MM_FLAG_H__ */
|