/* Kernel debugger for MN10300
*
* Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
* Written by David Howells ([email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/

#ifndef _ASM_KGDB_H
#define _ASM_KGDB_H

/*
* BUFMAX defines the maximum number of characters in inbound/outbound
* buffers at least NUMREGBYTES*2 are needed for register packets
* Longer buffer is needed to list all threads
*/
#define BUFMAX 1024

/*
* Note that this register image is in a different order than the register
* image that Linux produces at interrupt time.
*/
enum regnames {
GDB_FR_D0 = 0,
GDB_FR_D1 = 1,
GDB_FR_D2 = 2,
GDB_FR_D3 = 3,
GDB_FR_A0 = 4,
GDB_FR_A1 = 5,
GDB_FR_A2 = 6,
GDB_FR_A3 = 7,

GDB_FR_SP = 8,
GDB_FR_PC = 9,
GDB_FR_MDR = 10,
GDB_FR_EPSW = 11,
GDB_FR_LIR = 12,
GDB_FR_LAR = 13,
GDB_FR_MDRQ = 14,

GDB_FR_E0 = 15,
GDB_FR_E1 = 16,
GDB_FR_E2 = 17,
GDB_FR_E3 = 18,
GDB_FR_E4 = 19,
GDB_FR_E5 = 20,
GDB_FR_E6 = 21,
GDB_FR_E7 = 22,

GDB_FR_SSP = 23,
GDB_FR_MSP = 24,
GDB_FR_USP = 25,
GDB_FR_MCRH = 26,
GDB_FR_MCRL = 27,
GDB_FR_MCVF = 28,

GDB_FR_FPCR = 29,
GDB_FR_DUMMY0 = 30,
GDB_FR_DUMMY1 = 31,

GDB_FR_FS0 = 32,

GDB_FR_SIZE = 64,
};

#define GDB_ORIG_D0 41
#define NUMREGBYTES (GDB_FR_SIZE*4)

static inline void arch_kgdb_breakpoint(void)
{
asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break");
}
extern u8 __arch_kgdb_breakpoint;

#define BREAK_INSTR_SIZE 1
#define CACHE_FLUSH_IS_SAFE 1

#endif /* _ASM_KGDB_H */