38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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* This file is part of NativeOS
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* Copyright (C) 2015-2020 The NativeOS contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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typedef unsigned int physaddr_t;
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/**
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* \brief Initialize the physical memory manager subsystem.
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*/
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void pmm_init();
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/**
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* \brief Allocate a 4 KB page in the physical memory of the computer.
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* \return The allocated physical memory address, 0 if no free page is found.
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*/
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physaddr_t pmm_alloc_page();
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/**
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* \brief Free a 4 KB page from the physical memory of the computer.
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* \param page the memory address of the page to free up from memory.
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*/
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void pmm_free_page(physaddr_t page);
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