Linux 3.11-rc3
[cris-mirror.git] / arch / mips / kernel / signal-common.h
blob9c60d09e62a71521007c3cae0894cdcf09f01424
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
6 * Copyright (C) 1991, 1992 Linus Torvalds
7 * Copyright (C) 1994 - 2000 Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 */
11 #ifndef __SIGNAL_COMMON_H
12 #define __SIGNAL_COMMON_H
14 /* #define DEBUG_SIG */
16 #ifdef DEBUG_SIG
17 # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args)
18 #else
19 # define DEBUGP(fmt, args...)
20 #endif
23 * Determine which stack to use..
25 extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
26 size_t frame_size);
27 /* Check and clear pending FPU exceptions in saved CSR */
28 extern int fpcsr_pending(unsigned int __user *fpcsr);
30 /* Make sure we will not lose FPU ownership */
31 #ifdef CONFIG_PREEMPT
32 #define lock_fpu_owner() preempt_disable()
33 #define unlock_fpu_owner() preempt_enable()
34 #else
35 #define lock_fpu_owner() pagefault_disable()
36 #define unlock_fpu_owner() pagefault_enable()
37 #endif
39 #endif /* __SIGNAL_COMMON_H */