| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support |
| 4 | * |
| 5 | * Copyright (c) 2011, The Linux Foundation. All rights reserved. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef __HEXAGON_KGDB_H__ |
| 9 | #define __HEXAGON_KGDB_H__ |
| 10 | |
| 11 | #define BREAK_INSTR_SIZE 4 |
| 12 | #define CACHE_FLUSH_IS_SAFE 1 |
| 13 | #define BUFMAX ((NUMREGBYTES * 2) + 512) |
| 14 | |
| 15 | static inline void arch_kgdb_breakpoint(void) |
| 16 | { |
| 17 | asm("trap0(#0xDB)"); |
| 18 | } |
| 19 | |
| 20 | /* Registers: |
| 21 | * 32 gpr + sa0/1 + lc0/1 + m0/1 + gp + ugp + pred + pc = 42 total. |
| 22 | * vm regs = psp+elr+est+badva = 4 |
| 23 | * syscall+restart = 2 more |
| 24 | * also add cs0/1 = 2 |
| 25 | * so 48 = 42 + 4 + 2 + 2 |
| 26 | */ |
| 27 | #define DBG_USER_REGS 42 |
| 28 | #define DBG_MAX_REG_NUM (DBG_USER_REGS + 8) |
| 29 | #define NUMREGBYTES (DBG_MAX_REG_NUM*4) |
| 30 | |
| 31 | #endif /* __HEXAGON_KGDB_H__ */ |