Linux Kernel  3.7.1
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hardwall.h
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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 */