fpu.h revision 1.17
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