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Linux kernel mirror (for testing)
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1/*
2 * File: include/asm-blackfin/kgdb.h
3 * Based on:
4 * Author: Sonic Zhang
5 *
6 * Created:
7 * Description:
8 *
9 * Rev: $Id: kgdb_bfin_linux-2.6.x.patch 4934 2007-02-13 09:32:11Z sonicz $
10 *
11 * Modified:
12 * Copyright 2005-2006 Analog Devices Inc.
13 *
14 * Bugs: Enter bugs at http://blackfin.uclinux.org/
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, see the file COPYING, or write
28 * to the Free Software Foundation, Inc.,
29 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
30 */
31
32#ifndef __ASM_BLACKFIN_KGDB_H__
33#define __ASM_BLACKFIN_KGDB_H__
34
35#include <linux/ptrace.h>
36
37/* gdb locks */
38#define KGDB_MAX_NO_CPUS 8
39
40/************************************************************************/
41/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/
42/* at least NUMREGBYTES*2 are needed for register packets */
43/* Longer buffer is needed to list all threads */
44#define BUFMAX 2048
45
46/*
47 * Note that this register image is different from
48 * the register image that Linux produces at interrupt time.
49 *
50 * Linux's register image is defined by struct pt_regs in ptrace.h.
51 */
52enum regnames {
53 /* Core Registers */
54 BFIN_R0 = 0,
55 BFIN_R1,
56 BFIN_R2,
57 BFIN_R3,
58 BFIN_R4,
59 BFIN_R5,
60 BFIN_R6,
61 BFIN_R7,
62 BFIN_P0,
63 BFIN_P1,
64 BFIN_P2,
65 BFIN_P3,
66 BFIN_P4,
67 BFIN_P5,
68 BFIN_SP,
69 BFIN_FP,
70 BFIN_I0,
71 BFIN_I1,
72 BFIN_I2,
73 BFIN_I3,
74 BFIN_M0,
75 BFIN_M1,
76 BFIN_M2,
77 BFIN_M3,
78 BFIN_B0,
79 BFIN_B1,
80 BFIN_B2,
81 BFIN_B3,
82 BFIN_L0,
83 BFIN_L1,
84 BFIN_L2,
85 BFIN_L3,
86 BFIN_A0_DOT_X,
87 BFIN_A0_DOT_W,
88 BFIN_A1_DOT_X,
89 BFIN_A1_DOT_W,
90 BFIN_ASTAT,
91 BFIN_RETS,
92 BFIN_LC0,
93 BFIN_LT0,
94 BFIN_LB0,
95 BFIN_LC1,
96 BFIN_LT1,
97 BFIN_LB1,
98 BFIN_CYCLES,
99 BFIN_CYCLES2,
100 BFIN_USP,
101 BFIN_SEQSTAT,
102 BFIN_SYSCFG,
103 BFIN_RETI,
104 BFIN_RETX,
105 BFIN_RETN,
106 BFIN_RETE,
107
108 /* Pseudo Registers */
109 BFIN_PC,
110 BFIN_CC,
111 BFIN_EXTRA1, /* Address of .text section. */
112 BFIN_EXTRA2, /* Address of .data section. */
113 BFIN_EXTRA3, /* Address of .bss section. */
114 BFIN_FDPIC_EXEC,
115 BFIN_FDPIC_INTERP,
116
117 /* MMRs */
118 BFIN_IPEND,
119
120 /* LAST ENTRY SHOULD NOT BE CHANGED. */
121 BFIN_NUM_REGS /* The number of all registers. */
122};
123
124/* Number of bytes of registers. */
125#define NUMREGBYTES BFIN_NUM_REGS*4
126
127#define BREAKPOINT() asm(" EXCPT 2;");
128#define BREAK_INSTR_SIZE 2
129#define HW_BREAKPOINT_NUM 6
130
131/* Instruction watchpoint address control register bits mask */
132#define WPPWR 0x1
133#define WPIREN01 0x2
134#define WPIRINV01 0x4
135#define WPIAEN0 0x8
136#define WPIAEN1 0x10
137#define WPICNTEN0 0x20
138#define WPICNTEN1 0x40
139#define EMUSW0 0x80
140#define EMUSW1 0x100
141#define WPIREN23 0x200
142#define WPIRINV23 0x400
143#define WPIAEN2 0x800
144#define WPIAEN3 0x1000
145#define WPICNTEN2 0x2000
146#define WPICNTEN3 0x4000
147#define EMUSW2 0x8000
148#define EMUSW3 0x10000
149#define WPIREN45 0x20000
150#define WPIRINV45 0x40000
151#define WPIAEN4 0x80000
152#define WPIAEN5 0x100000
153#define WPICNTEN4 0x200000
154#define WPICNTEN5 0x400000
155#define EMUSW4 0x800000
156#define EMUSW5 0x1000000
157#define WPAND 0x2000000
158
159/* Data watchpoint address control register bits mask */
160#define WPDREN01 0x1
161#define WPDRINV01 0x2
162#define WPDAEN0 0x4
163#define WPDAEN1 0x8
164#define WPDCNTEN0 0x10
165#define WPDCNTEN1 0x20
166#define WPDSRC0 0xc0
167#define WPDACC0 0x300
168#define WPDSRC1 0xc00
169#define WPDACC1 0x3000
170
171/* Watchpoint status register bits mask */
172#define STATIA0 0x1
173#define STATIA1 0x2
174#define STATIA2 0x4
175#define STATIA3 0x8
176#define STATIA4 0x10
177#define STATIA5 0x20
178#define STATDA0 0x40
179#define STATDA1 0x80
180
181extern void kgdb_print(const char *fmt, ...);
182extern void init_kgdb_uart(void);
183
184#endif