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/* SPDX-License-Identifier: GPL-2.0 */
/*
* x86 FPU signal frame handling methods:
*/
#ifndef _ASM_X86_FPU_SIGNAL_H
#define _ASM_X86_FPU_SIGNAL_H
#include <linux/compat.h>
#include <linux/user.h>
#include <asm/fpu/types.h>
#ifdef CONFIG_X86_64
# include <uapi/asm/sigcontext.h>
# include <asm/user32.h>
struct ksignal;
int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
compat_sigset_t *set, struct pt_regs *regs);
int ia32_setup_frame(int sig, struct ksignal *ksig,
compat_sigset_t *set, struct pt_regs *regs);
#else
# define user_i387_ia32_struct user_i387_struct
# define user32_fxsr_struct user_fxsr_struct
# define ia32_setup_frame __setup_frame
# define ia32_setup_rt_frame __setup_rt_frame
#endif
extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
struct task_struct *tsk);
extern void convert_to_fxsr(struct fxregs_state *fxsave,
const struct user_i387_ia32_struct *env);
unsigned long
fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
unsigned long *buf_fx, unsigned long *size);
unsigned long fpu__get_fpstate_size(void);
extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
extern void fpu__clear_user_states(struct fpu *fpu);
extern bool fpu__restore_sig(void __user *buf, int ia32_frame);
extern void restore_fpregs_from_fpstate(struct fpstate *fpstate, u64 mask);
extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
#endif /* _ASM_X86_FPU_SIGNAL_H */
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