diff options
Diffstat (limited to 'src/target/nds32_tlb.h')
| -rw-r--r-- | src/target/nds32_tlb.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/target/nds32_tlb.h b/src/target/nds32_tlb.h new file mode 100644 index 00000000..59e11573 --- /dev/null +++ b/src/target/nds32_tlb.h @@ -0,0 +1,48 @@ +/*************************************************************************** + * Copyright (C) 2013 Andes Technology * + * Hsiangkai Wang <hkwang@andestech.com> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * + ***************************************************************************/ +#ifndef __NDS32_TLB_H__ +#define __NDS32_TLB_H__ + +#include "nds32.h" + +enum { + PAGE_SIZE_4K = 0, + PAGE_SIZE_8K, + PAGE_SIZE_NUM, +}; + +struct page_table_walker_info_s { + + uint32_t L1_offset_mask; + uint32_t L1_offset_shift; + uint32_t L2_offset_mask; + uint32_t L2_offset_shift; + uint32_t va_offset_mask; + uint32_t L1_base_mask; + uint32_t L2_base_mask; + uint32_t ppn_mask; +}; + +extern int nds32_probe_tlb(struct nds32 *nds32, const uint32_t virtual_address, + uint32_t *physical_address); +extern int nds32_walk_page_table(struct nds32 *nds32, const uint32_t virtual_address, + uint32_t *physical_address); + +#endif |