| /* 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__ */ |
