1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | /* |
3 | * x86 FPU signal frame handling methods: |
4 | */ |
5 | #ifndef _ASM_X86_FPU_SIGNAL_H |
6 | #define _ASM_X86_FPU_SIGNAL_H |
7 | |
8 | #include <linux/compat.h> |
9 | #include <linux/user.h> |
10 | |
11 | #include <asm/fpu/types.h> |
12 | |
13 | #ifdef CONFIG_X86_64 |
14 | # include <uapi/asm/sigcontext.h> |
15 | # include <asm/user32.h> |
16 | #else |
17 | # define user_i387_ia32_struct user_i387_struct |
18 | # define user32_fxsr_struct user_fxsr_struct |
19 | #endif |
20 | |
21 | extern void convert_from_fxsr(struct user_i387_ia32_struct *env, |
22 | struct task_struct *tsk); |
23 | extern void convert_to_fxsr(struct fxregs_state *fxsave, |
24 | const struct user_i387_ia32_struct *env); |
25 | |
26 | unsigned long |
27 | fpu__alloc_mathframe(unsigned long sp, int ia32_frame, |
28 | unsigned long *buf_fx, unsigned long *size); |
29 | |
30 | unsigned long fpu__get_fpstate_size(void); |
31 | |
32 | extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size); |
33 | extern void fpu__clear_user_states(struct fpu *fpu); |
34 | extern bool fpu__restore_sig(void __user *buf, int ia32_frame); |
35 | |
36 | extern void restore_fpregs_from_fpstate(struct fpstate *fpstate, u64 mask); |
37 | #endif /* _ASM_X86_FPU_SIGNAL_H */ |
38 |