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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   4  *
   5  *   This program is free software; you can redistribute it and/or
   6  *   modify it under the terms of the GNU General Public License
   7  *   as published by the Free Software Foundation, version 2.
   8  *
   9  *   This program is distributed in the hope that it will be useful, but
  10  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  12  *   NON INFRINGEMENT.  See the GNU General Public License for
  13  *   more details.
  14  *
  15  * Provide methods for access control of per-cpu resources like
  16  * UDN, IDN, or IPI.
  17  */
  18
  19 #ifndef _UAPI_ASM_TILE_HARDWALL_H
  20 #define _UAPI_ASM_TILE_HARDWALL_H
  21
  22 #include <arch/chip.h>
  23 #include <linux/ioctl.h>
  24
  25 #define HARDWALL_IOCTL_BASE 0xa2
  26
  27 /*
  28  * The HARDWALL_CREATE() ioctl is a macro with a "size" argument.
  29  * The resulting ioctl value is passed to the kernel in conjunction
  30  * with a pointer to a standard kernel bitmask of cpus.
  31  * For network resources (UDN or IDN) the bitmask must physically
  32  * represent a rectangular configuration on the chip.
  33  * The "size" is the number of bytes of cpu mask data.
  34  */
  35 #define _HARDWALL_CREATE 1
  36 #define HARDWALL_CREATE(size) \
  37   _IOC(_IOC_READ, HARDWALL_IOCTL_BASE, _HARDWALL_CREATE, (size))
  38
  39 #define _HARDWALL_ACTIVATE 2
  40 #define HARDWALL_ACTIVATE \
  41   _IO(HARDWALL_IOCTL_BASE, _HARDWALL_ACTIVATE)
  42
  43 #define _HARDWALL_DEACTIVATE 3
  44 #define HARDWALL_DEACTIVATE \
  45  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_DEACTIVATE)
  46
  47 #define _HARDWALL_GET_ID 4
  48 #define HARDWALL_GET_ID \
  49  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID)
  50
  51
  52 #endif /* _UAPI_ASM_TILE_HARDWALL_H */