u_cpu_detect.h revision ef2c80f5064b2d1830cea5bbcacde850138d54c4 
1/**************************************************************************
2 *
3 * Copyright 2008 Dennis Smit
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * on the rights to use, copy, modify, merge, publish, distribute, sub
10 * license, and/or sell copies of the Software, and to permit persons to whom
11 * the Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
20 * AUTHORS, COPYRIGHT HOLDERS, AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 ***************************************************************************/
26
27/**
28 * @file
29 * CPU feature detection.
30 *
31 * @author Dennis Smit
32 * @author Based on the work of Eric Anholt <anholt@FreeBSD.org>
33 */
34
35#ifndef _UTIL_CPU_DETECT_H
36#define _UTIL_CPU_DETECT_H
37
38#include "pipe/p_compiler.h"
39#include "pipe/p_config.h"
40
41struct util_cpu_caps {
42   unsigned nr_cpus;
43
44   /* Feature flags */
45   int x86_cpu_type;
46   unsigned cacheline;
47
48   unsigned has_tsc:1;
49   unsigned has_mmx:1;
50   unsigned has_mmx2:1;
51   unsigned has_sse:1;
52   unsigned has_sse2:1;
53   unsigned has_sse3:1;
54   unsigned has_ssse3:1;
55   unsigned has_sse4_1:1;
56   unsigned has_sse4_2:1;
57   unsigned has_avx:1;
58   unsigned has_3dnow:1;
59   unsigned has_3dnow_ext:1;
60   unsigned has_altivec:1;
61};
62
63extern struct util_cpu_caps
64util_cpu_caps;
65
66void util_cpu_detect(void);
67
68
69#endif /* _UTIL_CPU_DETECT_H */
70