src/target/armv4_5_cache.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_CACHE_H
  21 #define ARMV4_5_CACHE_H
  22
  23 #include <helper/types.h>
  24
  25 struct command_context;
  26
  27 struct armv4_5_cachesize
  28 {
  29         int linelen;
  30         int associativity;
  31         int nsets;
  32         int cachesize;
  33 };
  34
  35 struct armv4_5_cache_common
  36 {
  37         int ctype;      /* specify supported cache operations */
  38         int separate;   /* separate caches or unified cache */
  39         struct armv4_5_cachesize d_u_size;      /* data cache */
  40         struct armv4_5_cachesize i_size; /* instruction cache */
  41         int i_cache_enabled;
  42         int d_u_cache_enabled;
  43 };
  44
  45 int armv4_5_identify_cache(uint32_t cache_type_reg,
  46                 struct armv4_5_cache_common *cache);
  47 int armv4_5_cache_state(uint32_t cp15_control_reg,
  48                 struct armv4_5_cache_common *cache);
  49
  50 int armv4_5_handle_cache_info_command(struct command_context *cmd_ctx,
  51                 struct armv4_5_cache_common *armv4_5_cache);
  52
  53 enum
  54 {
  55         ARMV4_5_D_U_CACHE_ENABLED = 0x4,
  56         ARMV4_5_I_CACHE_ENABLED = 0x1000,
  57         ARMV4_5_WRITE_BUFFER_ENABLED = 0x8,
  58         ARMV4_5_CACHE_RR_BIT = 0x5000,
  59 };
  60
  61 #endif /* ARMV4_5_CACHE_H */