xref: /linux/arch/powerpc/kernel/signal.h (revision e5c86679d5e864947a52fb31e45a425dea3e7fa9)
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 static inline int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
53 				     struct task_struct *tsk)
54 {
55 	return -EFAULT;
56 }
57 
58 #endif /* !defined(CONFIG_PPC64) */
59 
60 #endif  /* _POWERPC_ARCH_SIGNAL_H */
61