diff options
| author | Linas Vepstas <linas@codeaurora.org> | 2011-10-31 18:54:43 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 07:34:21 -0700 |
| commit | 0d71e8791f22f6b45c4fc56e7de64f83d7ed0ac7 (patch) | |
| tree | dbed9857d637d29c54ff5d7d5c8ce07705e569d7 /arch/hexagon/include/asm | |
| parent | 499236d9db5a349eeab2e9f2791e2d69c2e4ed53 (diff) | |
Hexagon: kgdb support files
Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/hexagon/include/asm')
| -rw-r--r-- | arch/hexagon/include/asm/kgdb.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/hexagon/include/asm/kgdb.h b/arch/hexagon/include/asm/kgdb.h new file mode 100644 index 000000000000..9e8779702f10 --- /dev/null +++ b/arch/hexagon/include/asm/kgdb.h @@ -0,0 +1,43 @@ +/* + * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support + * + * Copyright (c) 2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef __HEXAGON_KGDB_H__ +#define __HEXAGON_KGDB_H__ + +#define BREAK_INSTR_SIZE 4 +#define CACHE_FLUSH_IS_SAFE 1 +#define BUFMAX ((NUMREGBYTES * 2) + 512) + +static inline void arch_kgdb_breakpoint(void) +{ + asm("trap0(#0xDB)"); +} + +/* Registers: + * 32 gpr + sa0/1 + lc0/1 + m0/1 + gp + ugp + pred + pc = 42 total. + * vm regs = psp+elr+est+badva = 4 + * syscall+restart = 2 more + * so 48 = 42 +4 + 2 + */ +#define DBG_USER_REGS 42 +#define DBG_MAX_REG_NUM (DBG_USER_REGS + 6) +#define NUMREGBYTES (DBG_MAX_REG_NUM*4) + +#endif /* __HEXAGON_KGDB_H__ */ |