/*
   *  linux/include/asm-arm/fpstate.h
   *
   *  Copyright (C) 1995 Russell King
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  #ifndef __ASM_ARM_FPSTATE_H
  #define __ASM_ARM_FPSTATE_H

  
  #ifndef __ASSEMBLY__
  
  /*
   * VFP storage area has:
   *  - FPEXC, FPSCR, FPINST and FPINST2.
   *  - 16 double precision data registers
   *  - an implementation-dependant word of state for FLDMX/FSTMX
   * 
   *  FPEXC will always be non-zero once the VFP has been used in this process.
   */
  
  struct vfp_hard_struct {
  	__u64 fpregs[16];

  #if __LINUX_ARM_ARCH__ < 6

  	__u32 fpmx_state;

  #endif

  	__u32 fpexc;
  	__u32 fpscr;
  	/*
  	 * VFP implementation specific state
  	 */
  	__u32 fpinst;
  	__u32 fpinst2;

  #ifdef CONFIG_SMP
  	__u32 cpu;
  #endif

  };
  
  union vfp_state {
  	struct vfp_hard_struct	hard;
  };
  
  extern void vfp_flush_thread(union vfp_state *);
  extern void vfp_release_thread(union vfp_state *);
  
  #define FP_HARD_SIZE 35
  
  struct fp_hard_struct {
  	unsigned int save[FP_HARD_SIZE];		/* as yet undefined */
  };
  
  #define FP_SOFT_SIZE 35
  
  struct fp_soft_struct {
  	unsigned int save[FP_SOFT_SIZE];		/* undefined information */
  };

  #define IWMMXT_SIZE	0x98

  struct iwmmxt_struct {

  	unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];

  };
  
  union fp_state {
  	struct fp_hard_struct	hard;
  	struct fp_soft_struct	soft;
  #ifdef CONFIG_IWMMXT
  	struct iwmmxt_struct	iwmmxt;
  #endif
  };
  
  #define FP_SIZE (sizeof(union fp_state) / sizeof(int))

  struct crunch_state {
  	unsigned int	mvdx[16][2];
  	unsigned int	mvax[4][3];
  	unsigned int	dspsc[2];
  };
  
  #define CRUNCH_SIZE	sizeof(struct crunch_state)

  #endif
  
  #endif