| Linas Vepstas | 0d71e87 | 2011-10-31 18:54:43 -0500 | [diff] [blame] | 1 | /* |
| 2 | * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support |
| 3 | * |
| 4 | * Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 and |
| 8 | * only version 2 as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 18 | * 02110-1301, USA. |
| 19 | */ |
| 20 | |
| 21 | #ifndef __HEXAGON_KGDB_H__ |
| 22 | #define __HEXAGON_KGDB_H__ |
| 23 | |
| 24 | #define BREAK_INSTR_SIZE 4 |
| 25 | #define CACHE_FLUSH_IS_SAFE 1 |
| 26 | #define BUFMAX ((NUMREGBYTES * 2) + 512) |
| 27 | |
| 28 | static inline void arch_kgdb_breakpoint(void) |
| 29 | { |
| 30 | asm("trap0(#0xDB)"); |
| 31 | } |
| 32 | |
| 33 | /* Registers: |
| 34 | * 32 gpr + sa0/1 + lc0/1 + m0/1 + gp + ugp + pred + pc = 42 total. |
| 35 | * vm regs = psp+elr+est+badva = 4 |
| 36 | * syscall+restart = 2 more |
| 37 | * so 48 = 42 +4 + 2 |
| 38 | */ |
| 39 | #define DBG_USER_REGS 42 |
| 40 | #define DBG_MAX_REG_NUM (DBG_USER_REGS + 6) |
| 41 | #define NUMREGBYTES (DBG_MAX_REG_NUM*4) |
| 42 | |
| 43 | #endif /* __HEXAGON_KGDB_H__ */ |