fpu.h revision 1.22
1/* $NetBSD: fpu.h,v 1.22 2020/10/15 17:40:14 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(const void *, uint64_t); 19 20void fpu_save(void); 21 22void fpu_set_default_cw(struct lwp *, unsigned int); 23 24void fputrap(struct trapframe *); 25void fpudna(struct trapframe *); 26 27void process_xmm_to_s87(const struct fxsave *, struct save87 *); 28void process_s87_to_xmm(const struct save87 *, struct fxsave *); 29 30void fpu_clear(struct lwp *, unsigned int); 31void fpu_sigreset(struct lwp *); 32 33void fpu_lwp_fork(struct lwp *, struct lwp *); 34void fpu_lwp_abandon(struct lwp *l); 35 36void fpu_kern_enter(void); 37void fpu_kern_leave(void); 38 39void process_write_fpregs_xmm(struct lwp *, const struct fxsave *); 40void process_write_fpregs_s87(struct lwp *, const struct save87 *); 41 42void process_read_fpregs_xmm(struct lwp *, struct fxsave *); 43void process_read_fpregs_s87(struct lwp *, struct save87 *); 44 45int process_read_xstate(struct lwp *, struct xstate *); 46int process_verify_xstate(const struct xstate *); 47int process_write_xstate(struct lwp *, const struct xstate *); 48 49#endif 50 51#endif /* _X86_FPU_H_ */ 52