/* 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> #else # define user_i387_ia32_struct user_i387_struct # define user32_fxsr_struct user_fxsr_struct #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, u32 pkru); 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); #endif /* _ASM_X86_FPU_SIGNAL_H */