xref: /freebsd-src/sys/amd64/include/cputypes.h (revision 7cc9e6ddbb1a6cd38b2f44d4dd9dfc890d2fc9d0)
1 /*
2  * Copyright (c) 1993 Christopher G. Demetriou
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef _MACHINE_CPUTYPES_H_
31 #define	_MACHINE_CPUTYPES_H_
32 
33 /*
34  * Classes of processor.
35  */
36 #define	CPUCLASS_X86	0	/* X86 */
37 #define	CPUCLASS_K8	1	/* K8 AMD64 class */
38 
39 /*
40  * Kinds of processor.
41  */
42 #define	CPU_X86		0	/* Intel */
43 #define	CPU_CLAWHAMMER	1	/* AMD Clawhammer */
44 #define	CPU_SLEDGEHAMMER 2	/* AMD Sledgehammer */
45 
46 #ifndef LOCORE
47 extern int	cpu;
48 extern int	cpu_class;
49 #endif
50 
51 #endif /* !_MACHINE_CPUTYPES_H_ */
52