| /* SPDX-License-Identifier: GPL-2.0-only */ | |
| /* | |
| * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support | |
| * | |
| * Copyright (c) 2011, The Linux Foundation. All rights reserved. | |
| */ | |
| #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 | |
| * also add cs0/1 = 2 | |
| * so 48 = 42 + 4 + 2 + 2 | |
| */ | |
| #define DBG_USER_REGS 42 | |
| #define DBG_MAX_REG_NUM (DBG_USER_REGS + 8) | |
| #define NUMREGBYTES (DBG_MAX_REG_NUM*4) | |
| #endif /* __HEXAGON_KGDB_H__ */ |