46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*
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* mmu.h
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*
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* This file is part of BaS_gcc.
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*
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* BaS_gcc 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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* BaS_gcc 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 BaS_gcc. If not, see <http://www.gnu.org/licenses/>.
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*
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* Created on: 26.02.2013
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* Author: Markus Fröschle
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*/
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#ifndef _MMU_H_
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#define _MMU_H_
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#include "bas_types.h"
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#define SCA_PAGE_ID 6 /* indicates video memory page */
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#define MMU_PAGE_SIZE_1M 0
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#define MMU_PAGE_SIZE_4K 1
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#define MMU_PAGE_SIZE_8K 2
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#define MMU_PAGE_SIZE_1K 3
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/*
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* global variables from linker script
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*/
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extern long video_tlb;
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extern long video_sbt;
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extern void mmu_init(void);
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extern void mmu_map_page(uint32_t virt, uint32_t phys, uint32_t map_size, uint32_t map_flags);
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#endif /* _MMU_H_ */
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