1 /* $NetBSD: fpu.h,v 1.23 2020/10/24 07:14:29 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 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, bool); 18 void fpu_area_restore(const void *, uint64_t, bool); 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 process_xmm_to_s87(const struct fxsave *, struct save87 *); 28 void process_s87_to_xmm(const struct save87 *, struct fxsave *); 29 30 void fpu_clear(struct lwp *, unsigned int); 31 void fpu_sigreset(struct lwp *); 32 33 void fpu_lwp_fork(struct lwp *, struct lwp *); 34 void fpu_lwp_abandon(struct lwp *l); 35 36 void fpu_kern_enter(void); 37 void fpu_kern_leave(void); 38 39 void process_write_fpregs_xmm(struct lwp *, const struct fxsave *); 40 void process_write_fpregs_s87(struct lwp *, const struct save87 *); 41 42 void process_read_fpregs_xmm(struct lwp *, struct fxsave *); 43 void process_read_fpregs_s87(struct lwp *, struct save87 *); 44 45 int process_read_xstate(struct lwp *, struct xstate *); 46 int process_verify_xstate(const struct xstate *); 47 int process_write_xstate(struct lwp *, const struct xstate *); 48 49 #endif 50 51 #endif /* _X86_FPU_H_ */ 52