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/*
* 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__ */