xref: /illumos-gate/usr/src/uts/i86pc/sys/tsc.h (revision e9542cf7b65f0e77a62389967bddd9ef73c78bb4)
1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source.  A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * Copyright 2016 Joyent, Inc.
14  */
15 
16 #ifndef _TSC_H
17 #define	_TSC_H
18 
19 /*
20  * flags to patch tsc_read routine.
21  */
22 #define	TSC_NONE		0x0
23 #define	TSC_RDTSC_CPUID		0x1
24 #define	TSC_RDTSC_MFENCE	0x2
25 #define	TSC_RDTSC_LFENCE	0x3
26 #define	TSC_TSCP		0x4
27 
28 #endif /* _TSC_H */
29