11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * This file is subject to the terms and conditions of the GNU General Public 31da177e4SLinus Torvalds * License. See the file "COPYING" in the main directory of this archive 41da177e4SLinus Torvalds * for more details. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 71da177e4SLinus Torvalds * Copyright (C) 1994 - 2000 Ralf Baechle 81da177e4SLinus Torvalds * Copyright (C) 1999, 2000 Silicon Graphics, Inc. 91da177e4SLinus Torvalds */ 101da177e4SLinus Torvalds 11c3fc4ab3SFranck Bui-Huu #ifndef __SIGNAL_COMMON_H 12c3fc4ab3SFranck Bui-Huu #define __SIGNAL_COMMON_H 13e50c0a8fSRalf Baechle 14722bb63dSFranck Bui-Huu /* #define DEBUG_SIG */ 15722bb63dSFranck Bui-Huu 16722bb63dSFranck Bui-Huu #ifdef DEBUG_SIG 17bb09a954SHarvey Harrison # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args) 18722bb63dSFranck Bui-Huu #else 19722bb63dSFranck Bui-Huu # define DEBUGP(fmt, args...) 20722bb63dSFranck Bui-Huu #endif 21722bb63dSFranck Bui-Huu 221da177e4SLinus Torvalds /* 231da177e4SLinus Torvalds * Determine which stack to use.. 241da177e4SLinus Torvalds */ 2581d103bfSRichard Weinberger extern void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, 26c3fc4ab3SFranck Bui-Huu size_t frame_size); 27c6a2f467SAtsushi Nemoto /* Check and clear pending FPU exceptions in saved CSR */ 28c6a2f467SAtsushi Nemoto extern int fpcsr_pending(unsigned int __user *fpcsr); 29c6a2f467SAtsushi Nemoto 30faea6234SAtsushi Nemoto /* Make sure we will not lose FPU ownership */ 3176deabd1SDavid Hildenbrand #define lock_fpu_owner() ({ preempt_disable(); pagefault_disable(); }) 3276deabd1SDavid Hildenbrand #define unlock_fpu_owner() ({ pagefault_enable(); preempt_enable(); }) 33faea6234SAtsushi Nemoto 342db9ca0aSPaul Burton /* Assembly functions to move context to/from the FPU */ 352db9ca0aSPaul Burton extern asmlinkage int 362db9ca0aSPaul Burton _save_fp_context(void __user *fpregs, void __user *csr); 372db9ca0aSPaul Burton extern asmlinkage int 382db9ca0aSPaul Burton _restore_fp_context(void __user *fpregs, void __user *csr); 392db9ca0aSPaul Burton 40bf82cb30SPaul Burton extern asmlinkage int _save_msa_all_upper(void __user *buf); 41bf82cb30SPaul Burton extern asmlinkage int _restore_msa_all_upper(void __user *buf); 42bf82cb30SPaul Burton 43*2894a8c4SArnd Bergmann extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); 44*2894a8c4SArnd Bergmann extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); 45*2894a8c4SArnd Bergmann 46c3fc4ab3SFranck Bui-Huu #endif /* __SIGNAL_COMMON_H */ 47