54 lines
1.4 KiB
C
Executable File
54 lines
1.4 KiB
C
Executable File
/**
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* Paging section header of rockOS
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* Copyright (C) 2022 Furkan Mudanyali
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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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef _ROCKOS_PAGING_H
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#define _ROCKOS_PAGING_H
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#include <stdint.h>
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typedef struct {
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uint32_t present: 1;
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uint32_t rw: 1;
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uint32_t user: 1;
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uint32_t accessed: 1;
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uint32_t dirty: 1;
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uint32_t unused: 7;
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uint32_t frame: 20;
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} Page;
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typedef struct {
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Page pages[1024];
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} PageTable;
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typedef struct {
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PageTable* tables[1024];
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uint32_t tablesPhys[1024];
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uint32_t physAddr;
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} PageDirectory;
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void paging_init();
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void paging_switch_dir(PageDirectory*);
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Page* PageGet(uint32_t, int32_t, PageDirectory*);
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void FrameSet(uint32_t);
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void FrameClear(uint32_t);
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uint32_t FrameTest(uint32_t);
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uint32_t FrameFirst();
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void FrameFree(Page*);
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void FrameAlloc(Page*, char, char);
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#endif |