From 0d71e8791f22f6b45c4fc56e7de64f83d7ed0ac7 Mon Sep 17 00:00:00 2001 From: Linas Vepstas Date: Mon, 31 Oct 2011 18:54:43 -0500 Subject: Hexagon: kgdb support files Signed-off-by: Linas Vepstas Acked-by: Arnd Bergmann Signed-off-by: Richard Kuo Signed-off-by: Linus Torvalds --- arch/hexagon/include/asm/kgdb.h | 43 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 arch/hexagon/include/asm/kgdb.h (limited to 'arch/hexagon/include') diff --git a/arch/hexagon/include/asm/kgdb.h b/arch/hexagon/include/asm/kgdb.h new file mode 100644 index 00000000000..9e8779702f1 --- /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__ */ -- cgit v1.2.3-70-g09d2