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fpu.h revision 1.21 
      1 /*	$NetBSD: fpu.h,v 1.21 2020/06/14 16:12:05 riastradh 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 
     10 struct cpu_info;
     11 struct lwp;
     12 struct trapframe;
     13 
     14 void fpuinit(struct cpu_info *);
     15 void fpuinit_mxcsr_mask(void);
     16 
     17 void fpu_area_save(void *, uint64_t);
     18 void fpu_area_restore(const void *, uint64_t);
     19 
     20 void fpu_save(void);
     21 
     22 void fpu_set_default_cw(struct lwp *, unsigned int);
     23 
     24 void fputrap(struct trapframe *);
     25 void fpudna(struct trapframe *);
     26 
     27 void fpu_clear(struct lwp *, unsigned int);
     28 void fpu_sigreset(struct lwp *);
     29 
     30 void fpu_lwp_fork(struct lwp *, struct lwp *);
     31 void fpu_lwp_abandon(struct lwp *l);
     32 
     33 void fpu_kern_enter(void);
     34 void fpu_kern_leave(void);
     35 
     36 void process_write_fpregs_xmm(struct lwp *, const struct fxsave *);
     37 void process_write_fpregs_s87(struct lwp *, const struct save87 *);
     38 
     39 void process_read_fpregs_xmm(struct lwp *, struct fxsave *);
     40 void process_read_fpregs_s87(struct lwp *, struct save87 *);
     41 
     42 int process_read_xstate(struct lwp *, struct xstate *);
     43 int process_verify_xstate(const struct xstate *);
     44 int process_write_xstate(struct lwp *, const struct xstate *);
     45 
     46 #endif
     47 
     48 #endif /* _X86_FPU_H_ */
     49