xref: /linux-5.15/arch/powerpc/kernel/signal.h (revision 77097ae503b170120ab66dd1d547f8577193f91f) !
1 /*
2  *    Copyright (c) 2007 Benjamin Herrenschmidt, IBM Coproration
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 k_sigaction *ka, struct pt_regs *regs,
16 				  size_t frame_size, int is_32);
17 extern void restore_sigmask(sigset_t *set);
18 
19 extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
20 			   siginfo_t *info, sigset_t *oldset,
21 			   struct pt_regs *regs);
22 
23 extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
24 			      siginfo_t *info, sigset_t *oldset,
25 			      struct pt_regs *regs);
26 
27 extern unsigned long copy_fpr_to_user(void __user *to,
28 				      struct task_struct *task);
29 extern unsigned long copy_fpr_from_user(struct task_struct *task,
30 					void __user *from);
31 #ifdef CONFIG_VSX
32 extern unsigned long copy_vsx_to_user(void __user *to,
33 				      struct task_struct *task);
34 extern unsigned long copy_vsx_from_user(struct task_struct *task,
35 					void __user *from);
36 #endif
37 
38 #ifdef CONFIG_PPC64
39 
40 extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
41 			      siginfo_t *info, sigset_t *set,
42 			      struct pt_regs *regs);
43 
44 #else /* CONFIG_PPC64 */
45 
46 static inline int handle_rt_signal64(int signr, struct k_sigaction *ka,
47 				     siginfo_t *info, sigset_t *set,
48 				     struct pt_regs *regs)
49 {
50 	return -EFAULT;
51 }
52 
53 #endif /* !defined(CONFIG_PPC64) */
54 
55 #endif  /* _POWERPC_ARCH_SIGNAL_H */
56