1 /***************************************************************************
2 * Copyright (C) 2009 by David Brownell *
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. *
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. *
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 ***************************************************************************/
22 #include "arm_adi_v5.h"
24 #include "armv4_5_mmu.h"
25 #include "armv4_5_cache.h"
27 typedef enum armv7a_mode
40 extern char **armv7a_mode_strings;
42 typedef enum armv7a_state
50 extern char *armv7a_state_strings[];
52 extern int armv7a_core_reg_map[8][17];
54 #define ARMV7A_CORE_REG_MODE(cache, mode, num) \
55 cache->reg_list[armv7a_core_reg_map[armv7a_mode_to_number(mode)][num]]
56 #define ARMV7A_CORE_REG_MODENUM(cache, mode, num) \
57 cache->reg_list[armv7a_core_reg_map[mode][num]]
65 /* offsets into armv4_5 core register cache */
76 #define ARMV7_COMMON_MAGIC 0x0A450999
78 /* VA to PA translation operations opc2 values*/
91 struct reg_cache *core_cache;
92 enum armv7a_mode core_mode;
93 enum armv7a_state core_state;
95 /* arm adp debug port */
96 struct swjdp_common swjdp_info;
103 /* Cache and Memory Management Unit */
104 struct armv4_5_mmu_common armv4_5_mmu;
105 struct arm armv4_5_common;
107 // int (*full_context)(struct target *target);
108 // int (*read_core_reg)(struct target *target, int num, enum armv7a_mode mode);
109 // int (*write_core_reg)(struct target *target, int num, enum armv7a_mode mode, u32 value);
110 int (*read_cp15)(struct target *target,
111 uint32_t op1, uint32_t op2,
112 uint32_t CRn, uint32_t CRm, uint32_t *value);
113 int (*write_cp15)(struct target *target,
114 uint32_t op1, uint32_t op2,
115 uint32_t CRn, uint32_t CRm, uint32_t value);
117 int (*examine_debug_reason)(struct target *target);
118 void (*post_debug_entry)(struct target *target);
120 void (*pre_restore_context)(struct target *target);
121 void (*post_restore_context)(struct target *target);
125 static inline struct armv7a_common *
126 target_to_armv7a(struct target *target)
128 return container_of(target->arch_info, struct armv7a_common,
132 struct armv7a_algorithm
136 enum armv7a_mode core_mode;
137 enum armv7a_state core_state;
140 struct armv7a_core_reg
143 enum armv7a_mode mode;
144 struct target *target;
145 struct armv7a_common *armv7a_common;
148 int armv7a_arch_state(struct target *target);
149 struct reg_cache *armv7a_build_reg_cache(struct target *target,
150 struct armv7a_common *armv7a_common);
151 int armv7a_register_commands(struct command_context *cmd_ctx);
152 int armv7a_init_arch_info(struct target *target, struct armv7a_common *armv7a);
154 /* map psr mode bits to linear number */
155 static inline int armv7a_mode_to_number(enum armv7a_mode mode)
159 case ARMV7A_MODE_USR: return 0; break;
160 case ARMV7A_MODE_FIQ: return 1; break;
161 case ARMV7A_MODE_IRQ: return 2; break;
162 case ARMV7A_MODE_SVC: return 3; break;
163 case ARMV7A_MODE_ABT: return 4; break;
164 case ARMV7A_MODE_UND: return 5; break;
165 case ARMV7A_MODE_SYS: return 6; break;
166 case ARMV7A_MODE_MON: return 7; break;
167 case ARMV7A_MODE_ANY: return 0; break; /* map MODE_ANY to user mode */
169 LOG_ERROR("invalid mode value encountered, val %d", mode);
174 /* map linear number to mode bits */
175 static inline enum armv7a_mode armv7a_number_to_mode(int number)
179 case 0: return ARMV7A_MODE_USR; break;
180 case 1: return ARMV7A_MODE_FIQ; break;
181 case 2: return ARMV7A_MODE_IRQ; break;
182 case 3: return ARMV7A_MODE_SVC; break;
183 case 4: return ARMV7A_MODE_ABT; break;
184 case 5: return ARMV7A_MODE_UND; break;
185 case 6: return ARMV7A_MODE_SYS; break;
186 case 7: return ARMV7A_MODE_MON; break;
188 LOG_ERROR("mode index out of bounds");
189 return ARMV7A_MODE_ANY;
194 #endif /* ARMV4_5_H */