arch/arm64/include/asm/system_misc.h

   1 /*
   2  * Based on arch/arm/include/asm/system_misc.h
   3  *
   4  * Copyright (C) 2012 ARM Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #ifndef __ASM_SYSTEM_MISC_H
  19 #define __ASM_SYSTEM_MISC_H
  20
  21 #ifndef __ASSEMBLY__
  22
  23 #include <linux/compiler.h>
  24 #include <linux/linkage.h>
  25 #include <linux/irqflags.h>
  26 #include <linux/signal.h>
  27 #include <linux/ratelimit.h>
  28 #include <linux/reboot.h>
  29
  30 struct pt_regs;
  31
  32 void die(const char *msg, struct pt_regs *regs, int err);
  33
  34 struct siginfo;
  35 void arm64_notify_die(const char *str, struct pt_regs *regs,
  36                       struct siginfo *info, int err);
  37
  38 void hook_debug_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
  39                                              struct pt_regs *),
  40                            int sig, int code, const char *name);
  41
  42 struct mm_struct;
  43 extern void show_pte(struct mm_struct *mm, unsigned long addr);
  44 extern void __show_regs(struct pt_regs *);
  45
  46 extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
  47
  48 #define show_unhandled_signals_ratelimited()                            \
  49 ({                                                                      \
  50         static DEFINE_RATELIMIT_STATE(_rs,                              \
  51                                       DEFAULT_RATELIMIT_INTERVAL,       \
  52                                       DEFAULT_RATELIMIT_BURST);         \
  53         bool __show_ratelimited = false;                                \
  54         if (show_unhandled_signals && __ratelimit(&_rs))                \
  55                 __show_ratelimited = true;                              \
  56         __show_ratelimited;                                             \
  57 })
  58
  59 #define UDBG_UNDEFINED  (1 << 0)
  60 #define UDBG_SYSCALL    (1 << 1)
  61 #define UDBG_BADABORT   (1 << 2)
  62 #define UDBG_SEGV       (1 << 3)
  63 #define UDBG_BUS        (1 << 4)
  64
  65 #endif  /* __ASSEMBLY__ */
  66
  67 #endif  /* __ASM_SYSTEM_MISC_H */