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2ab068400b
move some funcitons like hpa2hva to common file. change some files to include file from asm/pgtable.h to common/pgtable.h Tracked-On: #8831 Signed-off-by: hangliu1 <hang1.liu@intel.com> Reviewed-by: Fei Li <fei1.li@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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* Copyright (C) 2018-2025 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#ifndef COMMON_PGTABLE_H
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#define COMMON_PGTABLE_H
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#include <asm/page.h>
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/**
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* @brief Translate a host physical address to a host virtual address.
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*
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* This function is used to translate a host physical address to a host virtual address. HPA is 1:1 mapping to HVA.
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*
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* It returns the host virtual address that corresponds to the given host physical address.
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*
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* @param[in] hpa The host physical address to be translated.
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*
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* @return The translated host virtual address
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*
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* @retval NULL if hpa == 0
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*
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* @pre N/A
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*
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* @post N/A
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*
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* @remark This function is used after paging mode enabled.
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*/
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static inline void *hpa2hva(uint64_t hpa)
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{
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return (void *)hpa;
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}
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/**
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* @brief Translate a host virtual address to a host physical address.
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*
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* This function is used to translate a host virtual address to a host physical address. HVA is 1:1 mapping to HPA.
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*
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* It returns the host physical address that corresponds to the given host virtual address.
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*
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* @param[in] va The host virtual address to be translated.
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*
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* @return The translated host physical address.
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*
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* @retval 0 if va == NULL
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*
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* @pre N/A
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*
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* @post N/A
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*
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* @remark This function is used after paging mode enabled.
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*/
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static inline uint64_t hva2hpa(const void *va)
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{
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return (uint64_t)va;
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}
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static inline uint64_t round_page_up(uint64_t addr)
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{
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return (((addr + (uint64_t)PAGE_SIZE) - 1UL) & PAGE_MASK);
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}
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static inline uint64_t round_page_down(uint64_t addr)
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{
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return (addr & PAGE_MASK);
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}
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#endif /* COMMON_PGTABLE_H*/
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