xscale_trace_t -> struct xscale_trace
[openocd.git] / src / target / xscale.h
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
23 #ifndef XSCALE_H
24 #define XSCALE_H
25
26 #include "armv4_5.h"
27 #include "armv4_5_mmu.h"
28 #include "trace.h"
29
30 #define XSCALE_COMMON_MAGIC 0x58534341
31
32 /* These four JTAG instructions are architecturally defined.
33 * Lengths are core-specific; originally 5 bits, later 7.
34 */
35 #define XSCALE_DBGRX 0x02
36 #define XSCALE_DBGTX 0x10
37 #define XSCALE_LDIC 0x07
38 #define XSCALE_SELDCSR 0x09
39
40 enum xscale_debug_reason
41 {
42 XSCALE_DBG_REASON_GENERIC,
43 XSCALE_DBG_REASON_RESET,
44 XSCALE_DBG_REASON_TB_FULL,
45 };
46
47 enum xscale_trace_entry_type
48 {
49 XSCALE_TRACE_MESSAGE = 0x0,
50 XSCALE_TRACE_ADDRESS = 0x1,
51 };
52
53 struct xscale_trace_entry
54 {
55 uint8_t data;
56 enum xscale_trace_entry_type type;
57 };
58
59 struct xscale_trace_data
60 {
61 struct xscale_trace_entry *entries;
62 int depth;
63 uint32_t chkpt0;
64 uint32_t chkpt1;
65 uint32_t last_instruction;
66 struct xscale_trace_data *next;
67 };
68
69 struct xscale_trace
70 {
71 trace_status_t capture_status; /* current state of capture run */
72 struct image_s *image; /* source for target opcodes */
73 struct xscale_trace_data *data; /* linked list of collected trace data */
74 int buffer_enabled; /* whether trace buffer is enabled */
75 int buffer_fill; /* maximum number of trace runs to read (-1 for wrap-around) */
76 int pc_ok;
77 uint32_t current_pc;
78 armv4_5_state_t core_state; /* current core state (ARM, Thumb, Jazelle) */
79 };
80
81 struct xscale_common
82 {
83 /* armv4/5 common stuff */
84 armv4_5_common_t armv4_5_common;
85
86 int common_magic;
87
88 /* XScale registers (CP15, DBG) */
89 struct reg_cache *reg_cache;
90
91 /* current state of the debug handler */
92 uint32_t handler_address;
93
94 /* target-endian buffers with exception vectors */
95 uint32_t low_vectors[8];
96 uint32_t high_vectors[8];
97
98 /* static low vectors */
99 uint8_t static_low_vectors_set; /* bit field with static vectors set by the user */
100 uint8_t static_high_vectors_set; /* bit field with static vectors set by the user */
101 uint32_t static_low_vectors[8];
102 uint32_t static_high_vectors[8];
103
104 /* DCache cleaning */
105 uint32_t cache_clean_address;
106
107 /* whether hold_rst and ext_dbg_break should be set */
108 int hold_rst;
109 int external_debug_break;
110
111 /* breakpoint / watchpoint handling */
112 int dbr_available;
113 int dbr0_used;
114 int dbr1_used;
115 int ibcr_available;
116 int ibcr0_used;
117 int ibcr1_used;
118 uint32_t arm_bkpt;
119 uint16_t thumb_bkpt;
120
121 uint8_t vector_catch;
122
123 struct xscale_trace trace;
124
125 int arch_debug_reason;
126
127 /* MMU/Caches */
128 struct armv4_5_mmu_common armv4_5_mmu;
129 uint32_t cp15_control_reg;
130
131 int fast_memory_access;
132 };
133
134 static inline struct xscale_common *
135 target_to_xscale(struct target_s *target)
136 {
137 return container_of(target->arch_info, struct xscale_common,
138 armv4_5_common);
139 }
140
141 struct xscale_reg
142 {
143 int dbg_handler_number;
144 target_t *target;
145 };
146
147 enum
148 {
149 XSCALE_MAINID, /* 0 */
150 XSCALE_CACHETYPE,
151 XSCALE_CTRL,
152 XSCALE_AUXCTRL,
153 XSCALE_TTB,
154 XSCALE_DAC,
155 XSCALE_FSR,
156 XSCALE_FAR,
157 XSCALE_PID,
158 XSCALE_CPACCESS,
159 XSCALE_IBCR0, /* 10 */
160 XSCALE_IBCR1,
161 XSCALE_DBR0,
162 XSCALE_DBR1,
163 XSCALE_DBCON,
164 XSCALE_TBREG,
165 XSCALE_CHKPT0,
166 XSCALE_CHKPT1,
167 XSCALE_DCSR,
168 XSCALE_TX,
169 XSCALE_RX, /* 20 */
170 XSCALE_TXRXCTRL,
171 };
172
173 #define ERROR_XSCALE_NO_TRACE_DATA (-1500)
174
175 #endif /* XSCALE_H */