arch/tile/include/uapi/asm/hardwall.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  *
  14  * Provide methods for access control of per-cpu resources like
  15  * UDN, IDN, or IPI.
  16  */
  17
  18 #ifndef _UAPI_ASM_TILE_HARDWALL_H
  19 #define _UAPI_ASM_TILE_HARDWALL_H
  20
  21 #include <arch/chip.h>
  22 #include <linux/ioctl.h>
  23
  24 #define HARDWALL_IOCTL_BASE 0xa2
  25
  26 /*
  27  * The HARDWALL_CREATE() ioctl is a macro with a "size" argument.
  28  * The resulting ioctl value is passed to the kernel in conjunction
  29  * with a pointer to a standard kernel bitmask of cpus.
  30  * For network resources (UDN or IDN) the bitmask must physically
  31  * represent a rectangular configuration on the chip.
  32  * The "size" is the number of bytes of cpu mask data.
  33  */
  34 #define _HARDWALL_CREATE 1
  35 #define HARDWALL_CREATE(size) \
  36   _IOC(_IOC_READ, HARDWALL_IOCTL_BASE, _HARDWALL_CREATE, (size))
  37
  38 #define _HARDWALL_ACTIVATE 2
  39 #define HARDWALL_ACTIVATE \
  40   _IO(HARDWALL_IOCTL_BASE, _HARDWALL_ACTIVATE)
  41
  42 #define _HARDWALL_DEACTIVATE 3
  43 #define HARDWALL_DEACTIVATE \
  44  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_DEACTIVATE)
  45
  46 #define _HARDWALL_GET_ID 4
  47 #define HARDWALL_GET_ID \
  48  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID)
  49
  50
  51 #endif /* _UAPI_ASM_TILE_HARDWALL_H */