arch/mips/include/asm/kgdb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_KGDB_H_
   3 #define __ASM_KGDB_H_
   4
   5 #ifdef __KERNEL__
   6
   7 #include <asm/sgidefs.h>
   8
   9 #if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) || \
  10         (_MIPS_ISA == _MIPS_ISA_MIPS32)
  11
  12 #define KGDB_GDB_REG_SIZE       32
  13 #define GDB_SIZEOF_REG          sizeof(u32)
  14
  15 #elif (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \
  16         (_MIPS_ISA == _MIPS_ISA_MIPS64)
  17
  18 #ifdef CONFIG_32BIT
  19 #define KGDB_GDB_REG_SIZE       32
  20 #define GDB_SIZEOF_REG          sizeof(u32)
  21 #else /* CONFIG_CPU_32BIT */
  22 #define KGDB_GDB_REG_SIZE       64
  23 #define GDB_SIZEOF_REG          sizeof(u64)
  24 #endif
  25 #else
  26 #error "Need to set KGDB_GDB_REG_SIZE for MIPS ISA"
  27 #endif /* _MIPS_ISA */
  28
  29 #define BUFMAX                  2048
  30 #define DBG_MAX_REG_NUM         72
  31 #define NUMREGBYTES             (DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))
  32 #define NUMCRITREGBYTES         (12 * sizeof(GDB_SIZEOF_REG))
  33 #define BREAK_INSTR_SIZE        4
  34 #define CACHE_FLUSH_IS_SAFE     0
  35
  36 extern void arch_kgdb_breakpoint(void);
  37 extern void *saved_vectors[32];
  38 extern void handle_exception(struct pt_regs *regs);
  39 extern void breakinst(void);
  40 extern int kgdb_ll_trap(int cmd, const char *str,
  41                         struct pt_regs *regs, long err, int trap, int sig);
  42
  43 #endif                          /* __KERNEL__ */
  44
  45 #endif /* __ASM_KGDB_H_ */