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fpu.h revision 1.6 
      1  1.6  dsl /*	$NetBSD: fpu.h,v 1.6 2014/02/25 22:16:52 dsl Exp $	*/
      2  1.1  dsl 
      3  1.2  dsl #ifndef	_X86_FPU_H_
      4  1.2  dsl #define	_X86_FPU_H_
      5  1.1  dsl 
      6  1.1  dsl #include <x86/cpu_extended_state.h>
      7  1.1  dsl 
      8  1.1  dsl #ifdef _KERNEL
      9  1.2  dsl 
     10  1.3  dsl struct cpu_info;
     11  1.3  dsl struct lwp;
     12  1.1  dsl struct trapframe;
     13  1.1  dsl 
     14  1.1  dsl void fpuinit(struct cpu_info *);
     15  1.1  dsl void fpusave_lwp(struct lwp *, bool);
     16  1.1  dsl void fpusave_cpu(bool);
     17  1.1  dsl 
     18  1.5  dsl void fpu_set_default_cw(struct lwp *, unsigned int);
     19  1.5  dsl 
     20  1.2  dsl void fputrap(struct trapframe *);
     21  1.2  dsl void fpudna(struct trapframe *);
     22  1.2  dsl 
     23  1.2  dsl void process_xmm_to_s87(const struct fxsave *, struct save87 *);
     24  1.2  dsl void process_s87_to_xmm(const struct save87 *, struct fxsave *);
     25  1.2  dsl 
     26  1.3  dsl /* Set all to defaults (eg during exec) */
     27  1.3  dsl void fpu_save_area_clear(struct lwp *, unsigned int);
     28  1.3  dsl /* Reset control words only - for signal handlers */
     29  1.3  dsl void fpu_save_area_reset(struct lwp *);
     30  1.3  dsl 
     31  1.6  dsl /* Copy data outside pcb during fork */
     32  1.6  dsl void fpu_save_area_fork(struct pcb *, const struct pcb *);
     33  1.6  dsl 
     34  1.4  dsl /* Load FP registers with user-supplied values */
     35  1.4  dsl void process_write_fpregs_xmm(struct lwp *lwp, const struct fxsave *fpregs);
     36  1.4  dsl void process_write_fpregs_s87(struct lwp *lwp, const struct save87 *fpregs);
     37  1.4  dsl 
     38  1.4  dsl /* Save FP registers for copy to userspace */
     39  1.4  dsl void process_read_fpregs_xmm(struct lwp *lwp, struct fxsave *fpregs);
     40  1.4  dsl void process_read_fpregs_s87(struct lwp *lwp, struct save87 *fpregs);
     41  1.4  dsl 
     42  1.1  dsl #endif
     43  1.1  dsl 
     44  1.2  dsl #endif /* _X86_FPU_H_ */
     45