/* * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support * * Copyright (c) 2011, The Linux Foundation. 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 * 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__ */