1/* $NetBSD: fpu.h,v 1.17 2019/06/26 12:30:13 mgorny Exp $ */
2
3#ifndef _X86_FPU_H_
4#define _X86_FPU_H_
5
6#include <x86/cpu_extended_state.h>
7
8#ifdef _KERNEL
9
10struct cpu_info;
11struct lwp;
12struct trapframe;
13
14void fpuinit(struct cpu_info *);
15void fpuinit_mxcsr_mask(void);
16
17void fpu_area_save(void *, uint64_t);
18void fpu_area_restore(void *, uint64_t);
19
20void fpusave_lwp(struct lwp *, bool);
21void fpusave_cpu(bool);
22
23void fpu_eagerswitch(struct lwp *, struct lwp *);
24
25void fpu_set_default_cw(struct lwp *, unsigned int);
26
27void fputrap(struct trapframe *);
28void fpudna(struct trapframe *);
29
30void fpu_clear(struct lwp *, unsigned int);
31void fpu_sigreset(struct lwp *);
32
33void fpu_save_area_fork(struct pcb *, const struct pcb *);
34
35void process_write_fpregs_xmm(struct lwp *, const struct fxsave *);
36void process_write_fpregs_s87(struct lwp *, const struct save87 *);
37
38void process_read_fpregs_xmm(struct lwp *, struct fxsave *);
39void process_read_fpregs_s87(struct lwp *, struct save87 *);
40
41int process_read_xstate(struct lwp *, struct xstate *);
42int process_verify_xstate(const struct xstate *);
43int process_write_xstate(struct lwp *, const struct xstate *);
44
45#endif
46
47#endif /* _X86_FPU_H_ */
48