xref: /freebsd/sys/compat/linuxkpi/common/include/asm/processor.h (revision c8e7f78a3d28ff6e6223ed136ada8e1e2f34965e)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
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 
28 #ifndef _LINUXKPI_ASM_PROCESSOR_H_
29 #define	_LINUXKPI_ASM_PROCESSOR_H_
30 
31 #include <sys/types.h>
32 #include <machine/cpufunc.h>
33 #include <machine/cpu.h>
34 
35 #if defined(__i386__) || defined(__amd64__)
36 #define	X86_VENDOR_INTEL	0
37 #define	X86_VENDOR_CYRIX	1
38 #define	X86_VENDOR_AMD		2
39 #define	X86_VENDOR_UMC		3
40 #define	X86_VENDOR_CENTAUR	5
41 #define	X86_VENDOR_TRANSMETA	7
42 #define	X86_VENDOR_NSC		8
43 #define	X86_VENDOR_HYGON	9
44 #define	X86_VENDOR_NUM		12
45 
46 #define	X86_VENDOR_UNKNOWN	0xff
47 
48 struct cpuinfo_x86 {
49 	uint8_t		x86;
50 	uint8_t		x86_model;
51 	uint16_t	x86_clflush_size;
52 	uint16_t	x86_max_cores;
53 	uint8_t		x86_vendor;
54 };
55 
56 extern struct cpuinfo_x86	boot_cpu_data;
57 extern struct cpuinfo_x86	*__cpu_data;
58 #define	cpu_data(cpu)	__cpu_data[cpu]
59 #endif
60 
61 #define	cpu_relax()	cpu_spinwait()
62 
63 #endif	/* _LINUXKPI_ASM_PROCESSOR_H_ */
64