src/target/armv4_5_mmu.h

   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 #ifndef ARMV4_5_MMU_H
  21 #define ARMV4_5_MMU_H
  22
  23 #include "armv4_5_cache.h"
  24
  25 struct target;
  26
  27 struct armv4_5_mmu_common
  28 {
  29         uint32_t (*get_ttb)(struct target *target);
  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, uint8_t *buffer);
  32         void (*disable_mmu_caches)(struct target *target, int mmu, int d_u_cache, int i_cache);
  33         void (*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 enum
  40 {
  41         ARMV4_5_SECTION, ARMV4_5_LARGE_PAGE, ARMV4_5_SMALL_PAGE, ARMV4_5_TINY_PAGE
  42 };
  43
  44 extern char* armv4_5_page_type_names[];
  45
  46 uint32_t armv4_5_mmu_translate_va(struct target *target,
  47                 struct armv4_5_mmu_common *armv4_5_mmu, uint32_t va, int *type,
  48                 uint32_t *cb, int *domain, uint32_t *ap);
  49
  50 int armv4_5_mmu_read_physical(struct target *target,
  51                 struct armv4_5_mmu_common *armv4_5_mmu,
  52                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  53
  54 int armv4_5_mmu_write_physical(struct target *target,
  55                 struct armv4_5_mmu_common *armv4_5_mmu,
  56                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  57
  58 enum
  59 {
  60         ARMV4_5_MMU_ENABLED = 0x1,
  61         ARMV4_5_ALIGNMENT_CHECK = 0x2,
  62         ARMV4_5_MMU_S_BIT = 0x100,
  63         ARMV4_5_MMU_R_BIT = 0x200
  64 };
  65
  66 #endif /* ARMV4_5_MMU_H */