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kernel/linux-imx6_3.14.28/include/linux/edd.h 1.43 KB
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  /*
   * linux/include/linux/edd.h
   *  Copyright (C) 2002, 2003, 2004 Dell Inc.
   *  by Matt Domsch <Matt_Domsch@dell.com>
   *
   * structures and definitions for the int 13h, ax={41,48}h
   * BIOS Enhanced Disk Drive Services
   * This is based on the T13 group document D1572 Revision 0 (August 14 2002)
   * available at http://www.t13.org/docs2002/d1572r0.pdf.  It is
   * very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf
   *
   * In a nutshell, arch/{i386,x86_64}/boot/setup.S populates a scratch
   * table in the boot_params that contains a list of BIOS-enumerated
   * boot devices.
   * In arch/{i386,x86_64}/kernel/setup.c, this information is
   * transferred into the edd structure, and in drivers/firmware/edd.c, that
   * information is used to identify BIOS boot disk.  The code in setup.S
   * is very sensitive to the size of these structures.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License v2.0 as published by
   * the Free Software Foundation
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   */
  #ifndef _LINUX_EDD_H
  #define _LINUX_EDD_H
  
  #include <uapi/linux/edd.h>
  
  #ifndef __ASSEMBLY__
  extern struct edd edd;
  #endif				/*!__ASSEMBLY__ */
  #endif				/* _LINUX_EDD_H */