LXR linux/arch/nios2/include/asm/kgdb.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright (C) 2015 Altera Corporation
   4 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
   5 *
   6 * Based on the code posted by Kazuyasu on the Altera Forum at:
   7 * http://www.alteraforum.com/forum/showpost.php?p=77003&postcount=20
   8 */
   9
  10#ifndef _ASM_NIOS2_KGDB_H
  11#define _ASM_NIOS2_KGDB_H
  12
  13#define CACHE_FLUSH_IS_SAFE     1
  14#define BUFMAX                  2048
  15
  16enum regnames {
  17        GDB_R0 = 0,
  18        GDB_AT,
  19        GDB_R2,
  20        GDB_R3,
  21        GDB_R4,
  22        GDB_R5,
  23        GDB_R6,
  24        GDB_R7,
  25        GDB_R8,
  26        GDB_R9,
  27        GDB_R10,
  28        GDB_R11,
  29        GDB_R12,
  30        GDB_R13,
  31        GDB_R14,
  32        GDB_R15,
  33        GDB_R16,
  34        GDB_R17,
  35        GDB_R18,
  36        GDB_R19,
  37        GDB_R20,
  38        GDB_R21,
  39        GDB_R22,
  40        GDB_R23,
  41        GDB_ET,
  42        GDB_BT,
  43        GDB_GP,
  44        GDB_SP,
  45        GDB_FP,
  46        GDB_EA,
  47        GDB_BA,
  48        GDB_RA,
  49        GDB_PC,
  50        GDB_STATUS,
  51        GDB_ESTATUS,
  52        GDB_BSTATUS,
  53        GDB_IENABLE,
  54        GDB_IPENDING,
  55        GDB_CPUID,
  56        GDB_CTL6,
  57        GDB_EXCEPTION,
  58        GDB_PTEADDR,
  59        GDB_TLBACC,
  60        GDB_TLBMISC,
  61        GDB_ECCINJ,
  62        GDB_BADADDR,
  63        GDB_CONFIG,
  64        GDB_MPUBASE,
  65        GDB_MPUACC,
  66        /* do not change the last entry or anything below! */
  67        GDB_NUMREGBYTES         /* number of registers */
  68};
  69
  70#define GDB_SIZEOF_REG          sizeof(u32)
  71#define DBG_MAX_REG_NUM (49)
  72#define NUMREGBYTES             (DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))
  73
  74#define BREAK_INSTR_SIZE        4
  75static inline void arch_kgdb_breakpoint(void)
  76{
  77        __asm__ __volatile__("trap 30\n");
  78}
  79
  80#endif /* _ASM_NIOS2_KGDB_H */
  81