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kernel/linux-rt-4.4.41/arch/tile/include/uapi/asm/hardwall.h 1.61 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2010 Tilera Corporation. All Rights Reserved.
   *
   *   This program is free software; you can redistribute it and/or
   *   modify it under the terms of the GNU General Public License
   *   as published by the Free Software Foundation, version 2.
   *
   *   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, GOOD TITLE or
   *   NON INFRINGEMENT.  See the GNU General Public License for
   *   more details.
   *
   * Provide methods for access control of per-cpu resources like
   * UDN, IDN, or IPI.
   */
  
  #ifndef _UAPI_ASM_TILE_HARDWALL_H
  #define _UAPI_ASM_TILE_HARDWALL_H
  
  #include <arch/chip.h>
  #include <linux/ioctl.h>
  
  #define HARDWALL_IOCTL_BASE 0xa2
  
  /*
   * The HARDWALL_CREATE() ioctl is a macro with a "size" argument.
   * The resulting ioctl value is passed to the kernel in conjunction
   * with a pointer to a standard kernel bitmask of cpus.
   * For network resources (UDN or IDN) the bitmask must physically
   * represent a rectangular configuration on the chip.
   * The "size" is the number of bytes of cpu mask data.
   */
  #define _HARDWALL_CREATE 1
  #define HARDWALL_CREATE(size) \
    _IOC(_IOC_READ, HARDWALL_IOCTL_BASE, _HARDWALL_CREATE, (size))
  
  #define _HARDWALL_ACTIVATE 2
  #define HARDWALL_ACTIVATE \
    _IO(HARDWALL_IOCTL_BASE, _HARDWALL_ACTIVATE)
  
  #define _HARDWALL_DEACTIVATE 3
  #define HARDWALL_DEACTIVATE \
   _IO(HARDWALL_IOCTL_BASE, _HARDWALL_DEACTIVATE)
  
  #define _HARDWALL_GET_ID 4
  #define HARDWALL_GET_ID \
   _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID)
  
  
  #endif /* _UAPI_ASM_TILE_HARDWALL_H */