/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2015 Altera Corporation
 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
 *
 * Based on the code posted by Kazuyasu on the Altera Forum at:
 * http://www.alteraforum.com/forum/showpost.php?p=77003&postcount=20
 */

#ifndef _ASM_NIOS2_KGDB_H
#define _ASM_NIOS2_KGDB_H

#define CACHE_FLUSH_IS_SAFE     1
#define BUFMAX                  2048

enum regnames {
        GDB_R0 = 0,
        GDB_AT,
        GDB_R2,
        GDB_R3,
        GDB_R4,
        GDB_R5,
        GDB_R6,
        GDB_R7,
        GDB_R8,
        GDB_R9,
        GDB_R10,
        GDB_R11,
        GDB_R12,
        GDB_R13,
        GDB_R14,
        GDB_R15,
        GDB_R16,
        GDB_R17,
        GDB_R18,
        GDB_R19,
        GDB_R20,
        GDB_R21,
        GDB_R22,
        GDB_R23,
        GDB_ET,
        GDB_BT,
        GDB_GP,
        GDB_SP,
        GDB_FP,
        GDB_EA,
        GDB_BA,
        GDB_RA,
        GDB_PC,
        GDB_STATUS,
        GDB_ESTATUS,
        GDB_BSTATUS,
        GDB_IENABLE,
        GDB_IPENDING,
        GDB_CPUID,
        GDB_CTL6,
        GDB_EXCEPTION,
        GDB_PTEADDR,
        GDB_TLBACC,
        GDB_TLBMISC,
        GDB_ECCINJ,
        GDB_BADADDR,
        GDB_CONFIG,
        GDB_MPUBASE,
        GDB_MPUACC,
        /* do not change the last entry or anything below! */
        GDB_NUMREGBYTES         /* number of registers */
};

#define GDB_SIZEOF_REG          sizeof(u32)
#define DBG_MAX_REG_NUM (49)
#define NUMREGBYTES             (DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))

#define BREAK_INSTR_SIZE        4
static inline void arch_kgdb_breakpoint(void)
{
        __asm__ __volatile__("trap 30\n");
}

#endif /* _ASM_NIOS2_KGDB_H */