riscv-openocd/src/target/nds32_tlb.h

/***************************************************************************
 *   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, see <http://www.gnu.org/licenses/>. *
 ***************************************************************************/

#ifndef OPENOCD_TARGET_NDS32_TLB_H
#define OPENOCD_TARGET_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 target_addr_t virtual_address,
		target_addr_t *physical_address);
extern int nds32_walk_page_table(struct nds32 *nds32, const target_addr_t virtual_address,
		target_addr_t *physical_address);

#endif /* OPENOCD_TARGET_NDS32_TLB_H */