arch/powerpc/kernel/signal.h

   1 /*
   2  *    Copyright (c) 2007 Benjamin Herrenschmidt, IBM Corporation
   3  *    Extracted from signal_32.c and signal_64.c
   4  *
   5  * This file is subject to the terms and conditions of the GNU General
   6  * Public License.  See the file README.legal in the main directory of
   7  * this archive for more details.
   8  */
   9
  10 #ifndef _POWERPC_ARCH_SIGNAL_H
  11 #define _POWERPC_ARCH_SIGNAL_H
  12
  13 extern void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags);
  14
  15 extern void __user *get_sigframe(struct ksignal *ksig, unsigned long sp,
  16                                   size_t frame_size, int is_32);
  17
  18 extern int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
  19                            struct task_struct *tsk);
  20
  21 extern int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
  22                               struct task_struct *tsk);
  23
  24 extern unsigned long copy_fpr_to_user(void __user *to,
  25                                       struct task_struct *task);
  26 extern unsigned long copy_ckfpr_to_user(void __user *to,
  27                                                struct task_struct *task);
  28 extern unsigned long copy_fpr_from_user(struct task_struct *task,
  29                                         void __user *from);
  30 extern unsigned long copy_ckfpr_from_user(struct task_struct *task,
  31                                                  void __user *from);
  32 extern unsigned long get_tm_stackpointer(struct task_struct *tsk);
  33
  34 #ifdef CONFIG_VSX
  35 extern unsigned long copy_vsx_to_user(void __user *to,
  36                                       struct task_struct *task);
  37 extern unsigned long copy_ckvsx_to_user(void __user *to,
  38                                                struct task_struct *task);
  39 extern unsigned long copy_vsx_from_user(struct task_struct *task,
  40                                         void __user *from);
  41 extern unsigned long copy_ckvsx_from_user(struct task_struct *task,
  42                                                  void __user *from);
  43 #endif
  44
  45 #ifdef CONFIG_PPC64
  46
  47 extern int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
  48                               struct task_struct *tsk);
  49
  50 #else /* CONFIG_PPC64 */
  51
  52 extern long sys_rt_sigreturn(void);
  53 extern long sys_sigreturn(void);
  54
  55 static inline int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
  56                                      struct task_struct *tsk)
  57 {
  58         return -EFAULT;
  59 }
  60
  61 #endif /* !defined(CONFIG_PPC64) */
  62
  63 #endif  /* _POWERPC_ARCH_SIGNAL_H */