LXR linux/arch/arm64/include/asm/system

   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
  30struct pt_regs;
  31
  32void die(const char *msg, struct pt_regs *regs, int err);
  33
  34struct siginfo;
  35void arm64_notify_die(const char *str, struct pt_regs *regs,
  36                      struct siginfo *info, int err);
  37
  38void 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
  42struct mm_struct;
  43extern void show_pte(struct mm_struct *mm, unsigned long addr);
  44extern void __show_regs(struct pt_regs *);
  45
  46extern 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 */
  68