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 16 enum 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 arch_kgdb_breakpoint(void)75 static inline void arch_kgdb_breakpoint(void) 76 { 77 __asm__ __volatile__("trap 30\n"); 78 } 79 80 #endif /* _ASM_NIOS2_KGDB_H */ 81