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 */
52