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1da177e4 LT |
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. | |
5 | * | |
6 | * Copyright (C) 1991, 1992 Linus Torvalds | |
7 | * Copyright (C) 1994 - 2000 Ralf Baechle | |
8 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. | |
9 | */ | |
10 | ||
c3fc4ab3 FBH |
11 | #ifndef __SIGNAL_COMMON_H |
12 | #define __SIGNAL_COMMON_H | |
e50c0a8f | 13 | |
722bb63d FBH |
14 | /* #define DEBUG_SIG */ |
15 | ||
16 | #ifdef DEBUG_SIG | |
bb09a954 | 17 | # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args) |
722bb63d FBH |
18 | #else |
19 | # define DEBUGP(fmt, args...) | |
20 | #endif | |
21 | ||
1da177e4 LT |
22 | /* |
23 | * Determine which stack to use.. | |
24 | */ | |
81d103bf | 25 | extern void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, |
c3fc4ab3 | 26 | size_t frame_size); |
c6a2f467 AN |
27 | /* Check and clear pending FPU exceptions in saved CSR */ |
28 | extern int fpcsr_pending(unsigned int __user *fpcsr); | |
29 | ||
faea6234 | 30 | /* Make sure we will not lose FPU ownership */ |
76deabd1 DH |
31 | #define lock_fpu_owner() ({ preempt_disable(); pagefault_disable(); }) |
32 | #define unlock_fpu_owner() ({ pagefault_enable(); preempt_enable(); }) | |
faea6234 | 33 | |
2db9ca0a PB |
34 | /* Assembly functions to move context to/from the FPU */ |
35 | extern asmlinkage int | |
36 | _save_fp_context(void __user *fpregs, void __user *csr); | |
37 | extern asmlinkage int | |
38 | _restore_fp_context(void __user *fpregs, void __user *csr); | |
39 | ||
bf82cb30 PB |
40 | extern asmlinkage int _save_msa_all_upper(void __user *buf); |
41 | extern asmlinkage int _restore_msa_all_upper(void __user *buf); | |
42 | ||
c3fc4ab3 | 43 | #endif /* __SIGNAL_COMMON_H */ |