76 lines
3.1 KiB
C
76 lines
3.1 KiB
C
/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, 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_arch_mmu architecture mmu
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* @ingroup kernel
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*/
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#ifndef __LOS_ARCH_MMU_H__
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#define __LOS_ARCH_MMU_H__
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#include "los_typedef.h"
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#include "los_mux.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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typedef struct ArchMmu {
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LosMux mtx; /**< arch mmu page table entry modification mutex lock */
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VADDR_T *virtTtb; /**< translation table base virtual addr */
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PADDR_T physTtb; /**< translation table base phys addr */
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UINT32 asid; /**< TLB asid */
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LOS_DL_LIST ptList; /**< page table vm page list */
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} LosArchMmu;
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BOOL OsArchMmuInit(LosArchMmu *archMmu, VADDR_T *virtTtb);
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STATUS_T LOS_ArchMmuQuery(const LosArchMmu *archMmu, VADDR_T vaddr, PADDR_T *paddr, UINT32 *flags);
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STATUS_T LOS_ArchMmuUnmap(LosArchMmu *archMmu, VADDR_T vaddr, size_t count);
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STATUS_T LOS_ArchMmuMap(LosArchMmu *archMmu, VADDR_T vaddr, PADDR_T paddr, size_t count, UINT32 flags);
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STATUS_T LOS_ArchMmuChangeProt(LosArchMmu *archMmu, VADDR_T vaddr, size_t count, UINT32 flags);
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STATUS_T LOS_ArchMmuMove(LosArchMmu *archMmu, VADDR_T oldVaddr, VADDR_T newVaddr, size_t count, UINT32 flags);
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VOID LOS_ArchMmuContextSwitch(LosArchMmu *archMmu);
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STATUS_T LOS_ArchMmuDestroy(LosArchMmu *archMmu);
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VOID OsArchMmuInitPerCPU(VOID);
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VADDR_T *OsGFirstTableGet(VOID);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* __LOS_VM_PAGE_H__ */
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