src/target/armv7a.h

   1 /***************************************************************************
   2  *    Copyright (C) 2009 by David Brownell                                 *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19 #ifndef ARMV7A_H
  20 #define ARMV7A_H
  21
  22 #include "arm_adi_v5.h"
  23 #include "armv4_5.h"
  24 #include "armv4_5_mmu.h"
  25 #include "armv4_5_cache.h"
  26
  27 enum
  28 {
  29         ARM_PC  = 15,
  30         ARM_CPSR = 16
  31 }
  32 ;
  33 /* offsets into armv4_5 core register cache */
  34 enum
  35 {
  36         ARMV7A_CPSR = 31,
  37         ARMV7A_SPSR_FIQ = 32,
  38         ARMV7A_SPSR_IRQ = 33,
  39         ARMV7A_SPSR_SVC = 34,
  40         ARMV7A_SPSR_ABT = 35,
  41         ARMV7A_SPSR_UND = 36
  42 };
  43
  44 #define ARMV7_COMMON_MAGIC 0x0A450999
  45
  46 /* VA to PA translation operations opc2 values*/
  47 #define V2PCWPR  0
  48 #define V2PCWPW  1
  49 #define V2PCWUR  2
  50 #define V2PCWUW  3
  51 #define V2POWPR  4
  52 #define V2POWPW  5
  53 #define V2POWUR  6
  54 #define V2POWUW  7
  55
  56 struct armv7a_common
  57 {
  58         struct arm armv4_5_common;
  59         int common_magic;
  60         struct reg_cache *core_cache;
  61
  62         /* arm adp debug port */
  63         struct swjdp_common swjdp_info;
  64
  65         /* Core Debug Unit */
  66         uint32_t debug_base;
  67         uint8_t debug_ap;
  68         uint8_t memory_ap;
  69
  70         /* Cache and Memory Management Unit */
  71         struct armv4_5_mmu_common armv4_5_mmu;
  72
  73         int (*read_cp15)(struct target *target,
  74                         uint32_t op1, uint32_t op2,
  75                         uint32_t CRn, uint32_t CRm, uint32_t *value);
  76         int (*write_cp15)(struct target *target,
  77                         uint32_t op1, uint32_t op2,
  78                         uint32_t CRn, uint32_t CRm, uint32_t value);
  79
  80         int (*examine_debug_reason)(struct target *target);
  81         void (*post_debug_entry)(struct target *target);
  82
  83         void (*pre_restore_context)(struct target *target);
  84         void (*post_restore_context)(struct target *target);
  85
  86 };
  87
  88 static inline struct armv7a_common *
  89 target_to_armv7a(struct target *target)
  90 {
  91         return container_of(target->arch_info, struct armv7a_common,
  92                         armv4_5_common);
  93 }
  94
  95 struct armv7a_algorithm
  96 {
  97         int common_magic;
  98
  99         enum armv4_5_mode core_mode;
 100         enum armv4_5_state core_state;
 101 };
 102
 103 struct armv7a_core_reg
 104 {
 105         int num;
 106         enum armv4_5_mode mode;
 107         struct target *target;
 108         struct armv7a_common *armv7a_common;
 109 };
 110
 111 int armv7a_arch_state(struct target *target);
 112 struct reg_cache *armv7a_build_reg_cache(struct target *target,
 113                 struct armv7a_common *armv7a_common);
 114 int armv7a_register_commands(struct command_context *cmd_ctx);
 115 int armv7a_init_arch_info(struct target *target, struct armv7a_common *armv7a);
 116
 117 #endif /* ARMV4_5_H */