XXX AVX procfs

*** 108,117 ****
--- 108,118 ----
  #define r_pc    r_rip   /* user's instruction pointer */
  #define r_ps    r_rfl   /* user's RFLAGS */
  
  #ifdef _KERNEL
  #define lwptoregs(lwp)  ((struct regs *)((lwp)->lwp_regs))
+ #define lwptofpu(lwp)   ((kfpu_t *)((lwp)->lwp_fpu))
  #endif /* _KERNEL */
  
  #else   /* !_ASM */
  
  #if defined(_MACHDEP)