| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1991, 1992 Linus Torvalds |
| * Copyright (C) 1994 - 2000 Ralf Baechle |
| * Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
| */ |
| |
| #ifndef __SIGNAL_COMMON_H |
| #define __SIGNAL_COMMON_H |
| |
| /* #define DEBUG_SIG */ |
| |
| #ifdef DEBUG_SIG |
| # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args) |
| #else |
| # define DEBUGP(fmt, args...) |
| #endif |
| |
| /* |
| * Determine which stack to use.. |
| */ |
| extern void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, |
| size_t frame_size); |
| /* Check and clear pending FPU exceptions in saved CSR */ |
| extern int fpcsr_pending(unsigned int __user *fpcsr); |
| |
| /* Make sure we will not lose FPU ownership */ |
| #define lock_fpu_owner() ({ preempt_disable(); pagefault_disable(); }) |
| #define unlock_fpu_owner() ({ pagefault_enable(); preempt_enable(); }) |
| |
| /* Assembly functions to move context to/from the FPU */ |
| extern asmlinkage int |
| _save_fp_context(void __user *fpregs, void __user *csr); |
| extern asmlinkage int |
| _restore_fp_context(void __user *fpregs, void __user *csr); |
| |
| extern asmlinkage int _save_msa_all_upper(void __user *buf); |
| extern asmlinkage int _restore_msa_all_upper(void __user *buf); |
| |
| #endif /* __SIGNAL_COMMON_H */ |
