xref: /illumos-gate/usr/src/uts/common/sys/cpuid_drv.h (revision 49b225e1cfa7bbf7738d4df0a03f18e3283426eb)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_SYS_CPUID_DRV_H
28 #define	_SYS_CPUID_DRV_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/types.h>
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 /*
39  * /dev names:
40  *	/dev/cpu/			- containing directory
41  *		self/			- describes current cpu
42  *			cpuid		- cpu identification
43  */
44 
45 #define	CPUID_DRIVER_NAME	"cpuid"
46 #define	CPUID_DRIVER_SELF_NODE	"self"
47 
48 #define	CPUID_DIR_NAME		"cpu"
49 #define	CPUID_SELF_DIR_NAME	"self"
50 #define	CPUID_NAME		"cpuid"
51 #define	CPUID_SELF_NAME		\
52 	CPUID_DIR_NAME "/" CPUID_SELF_DIR_NAME "/" CPUID_NAME
53 
54 /*
55  * This minor number corresponds to the cpu we're running on at
56  * the time we invoke its interfaces.
57  */
58 #define	CPUID_SELF_CPUID_MINOR	((minor_t)0x3fffful)
59 
60 /*
61  * ioctl numbers: not an exported interface
62  */
63 #define	CPUID_IOC		(('c'<<24)|('i'<<16)|('d'<<8))
64 
65 #define	CPUID_GET_HWCAP		(CPUID_IOC|0)
66 
67 struct cpuid_get_hwcap {
68 	char *cgh_archname;
69 	uint_t cgh_hwcap;
70 };
71 
72 #if defined(_SYSCALL32_IMPL)
73 
74 #include <sys/types32.h>
75 
76 struct cpuid_get_hwcap32 {
77 	caddr32_t cgh_archname;
78 	uint32_t cgh_hwcap;
79 };
80 
81 #endif	/* _SYSCALL32_IMPL */
82 
83 #ifdef __cplusplus
84 }
85 #endif
86 
87 #endif	/* _SYS_CPUID_DRV_H */
88