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authorDavid Howells <dhowells@redhat.com>2008-02-08 07:19:31 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 12:22:30 -0500
commitb920de1b77b72ca9432ac3f97edb26541e65e5dd (patch)
tree40fa9be1470e929c47927dea7eddf184c0204229 /include/asm-mn10300/gdb-stub.h
parentef3d534754f31fed9c3b976fee1ece1b3bc38282 (diff)
mn10300: add the MN10300/AM33 architecture to the kernel
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-mn10300/gdb-stub.h')
-rw-r--r--include/asm-mn10300/gdb-stub.h183
1 files changed, 183 insertions, 0 deletions
diff --git a/include/asm-mn10300/gdb-stub.h b/include/asm-mn10300/gdb-stub.h
new file mode 100644
index 000000000000..e5a6368559af
--- /dev/null
+++ b/include/asm-mn10300/gdb-stub.h
@@ -0,0 +1,183 @@
1/* MN10300 Kernel GDB stub definitions
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public Licence
9 * as published by the Free Software Foundation; either version
10 * 2 of the Licence, or (at your option) any later version.
11 */
12#ifndef _ASM_GDB_STUB_H
13#define _ASM_GDB_STUB_H
14
15#include <asm/exceptions.h>
16
17/*
18 * register ID numbers in GDB remote protocol
19 */
20
21#define GDB_REGID_PC 9
22#define GDB_REGID_FP 7
23#define GDB_REGID_SP 8
24
25/*
26 * virtual stack layout for the GDB exception handler
27 */
28#define NUMREGS 64
29
30#define GDB_FR_D0 (0 * 4)
31#define GDB_FR_D1 (1 * 4)
32#define GDB_FR_D2 (2 * 4)
33#define GDB_FR_D3 (3 * 4)
34#define GDB_FR_A0 (4 * 4)
35#define GDB_FR_A1 (5 * 4)
36#define GDB_FR_A2 (6 * 4)
37#define GDB_FR_A3 (7 * 4)
38
39#define GDB_FR_SP (8 * 4)
40#define GDB_FR_PC (9 * 4)
41#define GDB_FR_MDR (10 * 4)
42#define GDB_FR_EPSW (11 * 4)
43#define GDB_FR_LIR (12 * 4)
44#define GDB_FR_LAR (13 * 4)
45#define GDB_FR_MDRQ (14 * 4)
46
47#define GDB_FR_E0 (15 * 4)
48#define GDB_FR_E1 (16 * 4)
49#define GDB_FR_E2 (17 * 4)
50#define GDB_FR_E3 (18 * 4)
51#define GDB_FR_E4 (19 * 4)
52#define GDB_FR_E5 (20 * 4)
53#define GDB_FR_E6 (21 * 4)
54#define GDB_FR_E7 (22 * 4)
55
56#define GDB_FR_SSP (23 * 4)
57#define GDB_FR_MSP (24 * 4)
58#define GDB_FR_USP (25 * 4)
59#define GDB_FR_MCRH (26 * 4)
60#define GDB_FR_MCRL (27 * 4)
61#define GDB_FR_MCVF (28 * 4)
62
63#define GDB_FR_FPCR (29 * 4)
64#define GDB_FR_DUMMY0 (30 * 4)
65#define GDB_FR_DUMMY1 (31 * 4)
66
67#define GDB_FR_FS0 (32 * 4)
68
69#define GDB_FR_SIZE (NUMREGS * 4)
70
71#ifndef __ASSEMBLY__
72
73/*
74 * This is the same as above, but for the high-level
75 * part of the GDB stub.
76 */
77
78struct gdb_regs {
79 /* saved main processor registers */
80 u32 d0, d1, d2, d3, a0, a1, a2, a3;
81 u32 sp, pc, mdr, epsw, lir, lar, mdrq;
82 u32 e0, e1, e2, e3, e4, e5, e6, e7;
83 u32 ssp, msp, usp, mcrh, mcrl, mcvf;
84
85 /* saved floating point registers */
86 u32 fpcr, _dummy0, _dummy1;
87 u32 fs0, fs1, fs2, fs3, fs4, fs5, fs6, fs7;
88 u32 fs8, fs9, fs10, fs11, fs12, fs13, fs14, fs15;
89 u32 fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23;
90 u32 fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31;
91};
92
93/*
94 * Prototypes
95 */
96extern void show_registers_only(struct pt_regs *regs);
97
98extern asmlinkage void gdbstub_init(void);
99extern asmlinkage void gdbstub_exit(int status);
100extern asmlinkage void gdbstub_io_init(void);
101extern asmlinkage void gdbstub_io_set_baud(unsigned baud);
102extern asmlinkage int gdbstub_io_rx_char(unsigned char *_ch, int nonblock);
103extern asmlinkage void gdbstub_io_tx_char(unsigned char ch);
104extern asmlinkage void gdbstub_io_tx_flush(void);
105
106extern asmlinkage void gdbstub_io_rx_handler(void);
107extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code);
108extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code);
109extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code);
110extern asmlinkage void __gdbstub_bug_trap(void);
111extern asmlinkage void __gdbstub_pause(void);
112extern asmlinkage void start_kernel(void);
113
114#ifndef CONFIG_MN10300_CACHE_DISABLED
115extern asmlinkage void gdbstub_purge_cache(void);
116#else
117#define gdbstub_purge_cache() do {} while (0)
118#endif
119
120/* Used to prevent crashes in memory access */
121extern asmlinkage int gdbstub_read_byte(const u8 *, u8 *);
122extern asmlinkage int gdbstub_read_word(const u8 *, u8 *);
123extern asmlinkage int gdbstub_read_dword(const u8 *, u8 *);
124extern asmlinkage int gdbstub_write_byte(u32, u8 *);
125extern asmlinkage int gdbstub_write_word(u32, u8 *);
126extern asmlinkage int gdbstub_write_dword(u32, u8 *);
127
128extern asmlinkage void gdbstub_read_byte_guard(void);
129extern asmlinkage void gdbstub_read_byte_cont(void);
130extern asmlinkage void gdbstub_read_word_guard(void);
131extern asmlinkage void gdbstub_read_word_cont(void);
132extern asmlinkage void gdbstub_read_dword_guard(void);
133extern asmlinkage void gdbstub_read_dword_cont(void);
134extern asmlinkage void gdbstub_write_byte_guard(void);
135extern asmlinkage void gdbstub_write_byte_cont(void);
136extern asmlinkage void gdbstub_write_word_guard(void);
137extern asmlinkage void gdbstub_write_word_cont(void);
138extern asmlinkage void gdbstub_write_dword_guard(void);
139extern asmlinkage void gdbstub_write_dword_cont(void);
140
141extern u8 gdbstub_rx_buffer[PAGE_SIZE];
142extern u32 gdbstub_rx_inp;
143extern u32 gdbstub_rx_outp;
144extern u8 gdbstub_rx_overflow;
145extern u8 gdbstub_busy;
146extern u8 gdbstub_rx_unget;
147
148#ifdef CONFIG_GDBSTUB_DEBUGGING
149extern void gdbstub_printk(const char *fmt, ...)
150 __attribute__((format(printf, 1, 2)));
151#else
152static inline __attribute__((format(printf, 1, 2)))
153void gdbstub_printk(const char *fmt, ...)
154{
155}
156#endif
157
158#ifdef CONFIG_GDBSTUB_DEBUG_ENTRY
159#define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
160#else
161#define gdbstub_entry(FMT, ...) ({ 0; })
162#endif
163
164#ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL
165#define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
166#else
167#define gdbstub_proto(FMT, ...) ({ 0; })
168#endif
169
170#ifdef CONFIG_GDBSTUB_DEBUG_IO
171#define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
172#else
173#define gdbstub_io(FMT, ...) ({ 0; })
174#endif
175
176#ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT
177#define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
178#else
179#define gdbstub_bkpt(FMT, ...) ({ 0; })
180#endif
181
182#endif /* !__ASSEMBLY__ */
183#endif /* _ASM_GDB_STUB_H */
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