1/* i386 version of processor capability information handling macros.
2 Copyright (C) 1998-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#ifndef _DL_PROCINFO_H
21#define _DL_PROCINFO_H 1
22#include <ldsodefs.h>
23
24#define _DL_HWCAP_COUNT 32
25
26#define _DL_PLATFORMS_COUNT 4
27
28/* Start at 48 to reserve some space. */
29#define _DL_FIRST_PLATFORM 48
30/* Mask to filter out platforms. */
31#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
32 << _DL_FIRST_PLATFORM)
33
34enum
35{
36 HWCAP_I386_FPU = 1 << 0,
37 HWCAP_I386_VME = 1 << 1,
38 HWCAP_I386_DE = 1 << 2,
39 HWCAP_I386_PSE = 1 << 3,
40 HWCAP_I386_TSC = 1 << 4,
41 HWCAP_I386_MSR = 1 << 5,
42 HWCAP_I386_PAE = 1 << 6,
43 HWCAP_I386_MCE = 1 << 7,
44 HWCAP_I386_CX8 = 1 << 8,
45 HWCAP_I386_APIC = 1 << 9,
46 HWCAP_I386_SEP = 1 << 11,
47 HWCAP_I386_MTRR = 1 << 12,
48 HWCAP_I386_PGE = 1 << 13,
49 HWCAP_I386_MCA = 1 << 14,
50 HWCAP_I386_CMOV = 1 << 15,
51 HWCAP_I386_FCMOV = 1 << 16,
52 HWCAP_I386_MMX = 1 << 23,
53 HWCAP_I386_OSFXSR = 1 << 24,
54 HWCAP_I386_XMM = 1 << 25,
55 HWCAP_I386_XMM2 = 1 << 26,
56 HWCAP_I386_AMD3D = 1 << 31,
57
58 /* XXX Which others to add here? */
59 HWCAP_IMPORTANT = (HWCAP_I386_XMM2)
60
61};
62
63/* We cannot provide a general printing function. */
64#define _dl_procinfo(type, word) -1
65
66static inline const char *
67__attribute__ ((unused))
68_dl_hwcap_string (int idx)
69{
70 return GLRO(dl_x86_cap_flags)[idx];
71};
72
73static inline const char *
74__attribute__ ((unused))
75_dl_platform_string (int idx)
76{
77 return GLRO(dl_x86_platforms)[idx - _DL_FIRST_PLATFORM];
78};
79
80static inline int
81__attribute__ ((unused, always_inline))
82_dl_string_hwcap (const char *str)
83{
84 int i;
85
86 for (i = 0; i < _DL_HWCAP_COUNT; i++)
87 {
88 if (strcmp (str, GLRO(dl_x86_cap_flags)[i]) == 0)
89 return i;
90 }
91 return -1;
92};
93
94static inline int
95__attribute__ ((unused, always_inline))
96_dl_string_platform (const char *str)
97{
98 int i;
99
100 if (str != NULL)
101 for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
102 {
103 if (strcmp (str, GLRO(dl_x86_platforms)[i]) == 0)
104 return _DL_FIRST_PLATFORM + i;
105 }
106 return -1;
107};
108
109#endif /* dl-procinfo.h */
110