1 /***************************************************************************
2 * Copyright (C) 2013-2015,2019-2020 Synopsys, Inc. *
3 * Frank Dols <frank.dols@synopsys.com> *
4 * Mischa Jonker <mischa.jonker@synopsys.com> *
5 * Anton Kolesov <anton.kolesov@synopsys.com> *
6 * Evgeniy Didin <didin@synopsys.com> *
8 * SPDX-License-Identifier: GPL-2.0-or-later *
9 ***************************************************************************/
11 #ifndef OPENOCD_TARGET_ARC_H
12 #define OPENOCD_TARGET_ARC_H
14 #include <helper/time_support.h>
15 #include <jtag/jtag.h>
17 #include "algorithm.h"
18 #include "breakpoints.h"
19 #include "jtag/interface.h"
22 #include "target_request.h"
23 #include "target_type.h"
24 #include "helper/bits.h"
30 #define ARC_COMMON_MAGIC 0xB32EB324 /* just a unique number */
32 #define AUX_DEBUG_REG 0x5
33 #define AUX_PC_REG 0x6
34 #define AUX_STATUS32_REG 0xA
36 #define SET_CORE_FORCE_HALT BIT(1)
37 #define SET_CORE_HALT_BIT BIT(0) /* STATUS32[0] = H field */
38 #define SET_CORE_ENABLE_INTERRUPTS BIT(31)
40 #define AUX_STATUS32_REG_HALT_BIT BIT(0)
41 #define AUX_STATUS32_REG_IE_BIT BIT(31) /* STATUS32[31] = IE field */
43 /* Reserved core registers */
44 #define CORE_R61_NUM (61)
45 #define CORE_R62_NUM (62)
47 #define CORE_REG_MAX_NUMBER (63)
49 /* Limit reg_type/reg_type_field name to 20 symbols */
50 #define REG_TYPE_MAX_NAME_LENGTH 20
52 struct arc_reg_bitfield
{
53 struct reg_data_type_bitfield bitfield
;
54 char name
[REG_TYPE_MAX_NAME_LENGTH
];
56 /* Register data type */
57 struct arc_reg_data_type
{
58 struct list_head list
;
59 struct reg_data_type data_type
;
60 struct reg_data_type_flags data_type_flags
;
61 struct reg_data_type_struct data_type_struct
;
62 char data_type_id
[REG_TYPE_MAX_NAME_LENGTH
];
63 struct arc_reg_bitfield
*bitfields
;
68 /* Standard GDB register types */
69 static const struct reg_data_type standard_gdb_types
[] = {
70 { .type
= REG_TYPE_INT
, .id
= "int" },
71 { .type
= REG_TYPE_INT8
, .id
= "int8" },
72 { .type
= REG_TYPE_INT16
, .id
= "int16" },
73 { .type
= REG_TYPE_INT32
, .id
= "int32" },
74 { .type
= REG_TYPE_INT64
, .id
= "int64" },
75 { .type
= REG_TYPE_INT128
, .id
= "int128" },
76 { .type
= REG_TYPE_UINT8
, .id
= "uint8" },
77 { .type
= REG_TYPE_UINT16
, .id
= "uint16" },
78 { .type
= REG_TYPE_UINT32
, .id
= "uint32" },
79 { .type
= REG_TYPE_UINT64
, .id
= "uint64" },
80 { .type
= REG_TYPE_UINT128
, .id
= "uint128" },
81 { .type
= REG_TYPE_CODE_PTR
, .id
= "code_ptr" },
82 { .type
= REG_TYPE_DATA_PTR
, .id
= "data_ptr" },
83 { .type
= REG_TYPE_FLOAT
, .id
= "float" },
84 { .type
= REG_TYPE_IEEE_SINGLE
, .id
= "ieee_single" },
85 { .type
= REG_TYPE_IEEE_DOUBLE
, .id
= "ieee_double" },
90 uint32_t common_magic
;
92 struct arc_jtag jtag_info
;
94 struct reg_cache
*core_and_aux_cache
;
95 struct reg_cache
*bcr_cache
;
97 /* Indicate if cach was built (for deinit function) */
98 bool core_aux_cache_built
;
100 /* Closely Coupled memory(CCM) regions for performance-critical
101 * code (optional). */
102 uint32_t iccm0_start
;
104 uint32_t iccm1_start
;
111 /* Register descriptions */
112 struct list_head reg_data_types
;
113 struct list_head core_reg_descriptions
;
114 struct list_head aux_reg_descriptions
;
115 struct list_head bcr_reg_descriptions
;
116 unsigned long num_regs
;
117 unsigned long num_core_regs
;
118 unsigned long num_aux_regs
;
119 unsigned long num_bcr_regs
;
120 unsigned long last_general_reg
;
122 /* PC register location in register cache. */
123 unsigned long pc_index_in_cache
;
124 /* DEBUG register location in register cache. */
125 unsigned long debug_index_in_cache
;
128 /* Borrowed from nds32.h */
129 #define CHECK_RETVAL(action) \
131 int __retval = (action); \
132 if (__retval != ERROR_OK) { \
133 LOG_DEBUG("error while calling \"%s\"", \
139 #define JIM_CHECK_RETVAL(action) \
141 int __retval = (action); \
142 if (__retval != JIM_OK) { \
143 LOG_DEBUG("error while calling \"%s\"", \
149 static inline struct arc_common
*target_to_arc(struct target
*target
)
151 return target
->arch_info
;
155 /* ARC Register description */
156 struct arc_reg_desc
{
158 struct target
*target
;
163 /* Actual place of storing reg_value */
164 uint8_t reg_value
[4];
166 /* Actual place of storing register feature */
167 struct reg_feature feature
;
169 /* GDB XML feature */
170 char *gdb_xml_feature
;
172 /* Is this a register in g/G-packet? */
175 /* Architectural number: core reg num or AUX reg num */
178 /* Core or AUX register? */
181 /* Build configuration register? */
185 struct reg_data_type
*data_type
;
187 struct list_head list
;
191 #define ERROR_ARC_REGISTER_NOT_FOUND (-700)
192 #define ERROR_ARC_REGISTER_FIELD_NOT_FOUND (-701)
193 #define ERROR_ARC_REGISTER_IS_NOT_STRUCT (-702)
194 #define ERROR_ARC_FIELD_IS_NOT_BITFIELD (-703)
195 #define ERROR_ARC_REGTYPE_NOT_FOUND (-704)
197 void free_reg_desc(struct arc_reg_desc
*r
);
200 void arc_reg_data_type_add(struct target
*target
,
201 struct arc_reg_data_type
*data_type
);
203 int arc_reg_add(struct target
*target
, struct arc_reg_desc
*arc_reg
,
204 const char * const type_name
, const size_t type_name_len
);
206 struct reg
*arc_reg_get_by_name(struct reg_cache
*first
,
207 const char *name
, bool search_all
);
209 int arc_reg_get_field(struct target
*target
, const char *reg_name
,
210 const char *field_name
, uint32_t *value_ptr
);
212 #endif /* OPENOCD_TARGET_ARC_H */
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