162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * x86 FPU signal frame handling methods: 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci#ifndef _ASM_X86_FPU_SIGNAL_H 662306a36Sopenharmony_ci#define _ASM_X86_FPU_SIGNAL_H 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/compat.h> 962306a36Sopenharmony_ci#include <linux/user.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <asm/fpu/types.h> 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci#ifdef CONFIG_X86_64 1462306a36Sopenharmony_ci# include <uapi/asm/sigcontext.h> 1562306a36Sopenharmony_ci# include <asm/user32.h> 1662306a36Sopenharmony_ci#else 1762306a36Sopenharmony_ci# define user_i387_ia32_struct user_i387_struct 1862306a36Sopenharmony_ci# define user32_fxsr_struct user_fxsr_struct 1962306a36Sopenharmony_ci#endif 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ciextern void convert_from_fxsr(struct user_i387_ia32_struct *env, 2262306a36Sopenharmony_ci struct task_struct *tsk); 2362306a36Sopenharmony_ciextern void convert_to_fxsr(struct fxregs_state *fxsave, 2462306a36Sopenharmony_ci const struct user_i387_ia32_struct *env); 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ciunsigned long 2762306a36Sopenharmony_cifpu__alloc_mathframe(unsigned long sp, int ia32_frame, 2862306a36Sopenharmony_ci unsigned long *buf_fx, unsigned long *size); 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciunsigned long fpu__get_fpstate_size(void); 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ciextern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size); 3362306a36Sopenharmony_ciextern void fpu__clear_user_states(struct fpu *fpu); 3462306a36Sopenharmony_ciextern bool fpu__restore_sig(void __user *buf, int ia32_frame); 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ciextern void restore_fpregs_from_fpstate(struct fpstate *fpstate, u64 mask); 3762306a36Sopenharmony_ci#endif /* _ASM_X86_FPU_SIGNAL_H */ 38