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 ***************************************************************************/
25 #include "arm_adi_v5.h"
27 #include "armv4_5_mmu.h"
28 #include "armv4_5_cache.h"
30 typedef enum armv7a_mode
43 extern char **armv7a_mode_strings
;
45 typedef enum armv7a_state
53 extern char *armv7a_state_strings
[];
55 extern int armv7a_core_reg_map
[8][17];
57 #define ARMV7A_CORE_REG_MODE(cache, mode, num) \
58 cache->reg_list[armv7a_core_reg_map[armv7a_mode_to_number(mode)][num]]
59 #define ARMV7A_CORE_REG_MODENUM(cache, mode, num) \
60 cache->reg_list[armv7a_core_reg_map[mode][num]]
68 /* offsets into armv4_5 core register cache */
79 #define ARMV4_5_COMMON_MAGIC 0x0A450A45
80 #define ARMV7_COMMON_MAGIC 0x0A450999
82 /* VA to PA translation operations opc2 values*/
92 typedef struct armv7a_common_s
95 reg_cache_t
*core_cache
;
96 enum armv7a_mode core_mode
;
97 enum armv7a_state core_state
;
99 /* arm adp debug port */
100 struct swjdp_common swjdp_info
;
102 /* Core Debug Unit */
107 /* Cache and Memory Management Unit */
108 struct armv4_5_mmu_common armv4_5_mmu
;
109 armv4_5_common_t armv4_5_common
;
111 // int (*full_context)(struct target_s *target);
112 // int (*read_core_reg)(struct target_s *target, int num, enum armv7a_mode mode);
113 // int (*write_core_reg)(struct target_s *target, int num, enum armv7a_mode mode, u32 value);
114 int (*read_cp15
)(struct target_s
*target
,
115 uint32_t op1
, uint32_t op2
,
116 uint32_t CRn
, uint32_t CRm
, uint32_t *value
);
117 int (*write_cp15
)(struct target_s
*target
,
118 uint32_t op1
, uint32_t op2
,
119 uint32_t CRn
, uint32_t CRm
, uint32_t value
);
121 int (*examine_debug_reason
)(target_t
*target
);
122 void (*post_debug_entry
)(target_t
*target
);
124 void (*pre_restore_context
)(target_t
*target
);
125 void (*post_restore_context
)(target_t
*target
);
129 static inline struct armv7a_common_s
*
130 target_to_armv7a(struct target_s
*target
)
132 return container_of(target
->arch_info
, struct armv7a_common_s
,
136 typedef struct armv7a_algorithm_s
140 enum armv7a_mode core_mode
;
141 enum armv7a_state core_state
;
142 } armv7a_algorithm_t
;
144 typedef struct armv7a_core_reg_s
147 enum armv7a_mode mode
;
149 armv7a_common_t
*armv7a_common
;
152 int armv7a_arch_state(struct target_s
*target
);
153 reg_cache_t
*armv7a_build_reg_cache(target_t
*target
,
154 armv7a_common_t
*armv7a_common
);
155 int armv7a_register_commands(struct command_context_s
*cmd_ctx
);
156 int armv7a_init_arch_info(target_t
*target
, armv7a_common_t
*armv7a
);
158 /* map psr mode bits to linear number */
159 static inline int armv7a_mode_to_number(enum armv7a_mode mode
)
163 case ARMV7A_MODE_USR
: return 0; break;
164 case ARMV7A_MODE_FIQ
: return 1; break;
165 case ARMV7A_MODE_IRQ
: return 2; break;
166 case ARMV7A_MODE_SVC
: return 3; break;
167 case ARMV7A_MODE_ABT
: return 4; break;
168 case ARMV7A_MODE_UND
: return 5; break;
169 case ARMV7A_MODE_SYS
: return 6; break;
170 case ARMV7A_MODE_MON
: return 7; break;
171 case ARMV7A_MODE_ANY
: return 0; break; /* map MODE_ANY to user mode */
173 LOG_ERROR("invalid mode value encountered, val %d", mode
);
178 /* map linear number to mode bits */
179 static inline enum armv7a_mode
armv7a_number_to_mode(int number
)
183 case 0: return ARMV7A_MODE_USR
; break;
184 case 1: return ARMV7A_MODE_FIQ
; break;
185 case 2: return ARMV7A_MODE_IRQ
; break;
186 case 3: return ARMV7A_MODE_SVC
; break;
187 case 4: return ARMV7A_MODE_ABT
; break;
188 case 5: return ARMV7A_MODE_UND
; break;
189 case 6: return ARMV7A_MODE_SYS
; break;
190 case 7: return ARMV7A_MODE_MON
; break;
192 LOG_ERROR("mode index out of bounds");
193 return ARMV7A_MODE_ANY
;
198 #endif /* ARMV4_5_H */
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