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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #ifndef ARMV4_5_MMU_H
  22 #define ARMV4_5_MMU_H
  23
  24 #include "armv4_5_cache.h"
  25
  26 struct target;
  27
  28 struct armv4_5_mmu_common {
  29         int (*get_ttb)(struct target *target, uint32_t *result);
  30         int (*read_memory)(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  31         int (*write_memory)(struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
  32         int (*disable_mmu_caches)(struct target *target, int mmu, int d_u_cache, int i_cache);
  33         int (*enable_mmu_caches)(struct target *target, int mmu, int d_u_cache, int i_cache);
  34         struct armv4_5_cache_common armv4_5_cache;
  35         int has_tiny_pages;
  36         int mmu_enabled;
  37 };
  38
  39 int armv4_5_mmu_translate_va(struct target *target,
  40                 struct armv4_5_mmu_common *armv4_5_mmu, uint32_t va,
  41                 uint32_t *cb, uint32_t *val);
  42
  43 int armv4_5_mmu_read_physical(struct target *target,
  44                 struct armv4_5_mmu_common *armv4_5_mmu,
  45                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  46
  47 int armv4_5_mmu_write_physical(struct target *target,
  48                 struct armv4_5_mmu_common *armv4_5_mmu,
  49                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
  50
  51 enum {
  52         ARMV4_5_MMU_ENABLED = 0x1,
  53         ARMV4_5_ALIGNMENT_CHECK = 0x2,
  54         ARMV4_5_MMU_S_BIT = 0x100,
  55         ARMV4_5_MMU_R_BIT = 0x200
  56 };
  57
  58 #endif /* ARMV4_5_MMU_H */