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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 
39 #include "pipe/p_compiler.h"
40 #include "pipe/p_config.h"
41 
42 
43 #ifdef	__cplusplus
44 extern "C" {
45 #endif
46 
47 
48 struct util_cpu_caps {
49    unsigned nr_cpus;
50 
51    /* Feature flags */
52    int x86_cpu_type;
53    unsigned cacheline;
54 
55    unsigned has_intel:1;
56    unsigned has_tsc:1;
57    unsigned has_mmx:1;
58    unsigned has_mmx2:1;
59    unsigned has_sse:1;
60    unsigned has_sse2:1;
61    unsigned has_sse3:1;
62    unsigned has_ssse3:1;
63    unsigned has_sse4_1:1;
64    unsigned has_sse4_2:1;
65    unsigned has_popcnt:1;
66    unsigned has_avx:1;
67    unsigned has_avx2:1;
68    unsigned has_f16c:1;
69    unsigned has_fma:1;
70    unsigned has_3dnow:1;
71    unsigned has_3dnow_ext:1;
72    unsigned has_xop:1;
73    unsigned has_altivec:1;
74    unsigned has_daz:1;
75 
76    unsigned has_avx512f:1;
77    unsigned has_avx512dq:1;
78    unsigned has_avx512ifma:1;
79    unsigned has_avx512pf:1;
80    unsigned has_avx512er:1;
81    unsigned has_avx512cd:1;
82    unsigned has_avx512bw:1;
83    unsigned has_avx512vl:1;
84    unsigned has_avx512vbmi:1;
85 };
86 
87 extern struct util_cpu_caps
88 util_cpu_caps;
89 
90 void util_cpu_detect(void);
91 
92 
93 #ifdef	__cplusplus
94 }
95 #endif
96 
97 
98 #endif /* _UTIL_CPU_DETECT_H */
99