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33516494 | 1 | /* s390 version of processor capability information handling macros. |
f7a9f785 | 2 | Copyright (C) 2006-2016 Free Software Foundation, Inc. |
33516494 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006. | |
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 | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
33516494 UD |
19 | |
20 | #ifndef _DL_PROCINFO_H | |
21 | #define _DL_PROCINFO_H 1 | |
22 | #include <ldsodefs.h> | |
23 | ||
4e28fa80 | 24 | #define _DL_HWCAP_COUNT 12 |
33516494 | 25 | |
a1b0488f | 26 | #define _DL_PLATFORMS_COUNT 8 |
33516494 UD |
27 | |
28 | /* The kernel provides up to 32 capability bits with elf_hwcap. */ | |
29 | #define _DL_FIRST_PLATFORM 32 | |
30 | /* Mask to filter out platforms. */ | |
31 | #define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \ | |
32 | << _DL_FIRST_PLATFORM) | |
33 | ||
382466e0 | 34 | /* Hardware capability bit numbers are derived directly from the |
33516494 | 35 | facility indications as stored by the "store facility list" (STFL) |
d0f8457e AK |
36 | instruction. |
37 | highgprs is an alien in that list. It describes a *kernel* | |
38 | capability. */ | |
33516494 UD |
39 | |
40 | enum | |
41 | { | |
42 | HWCAP_S390_ESAN3 = 1 << 0, | |
43 | HWCAP_S390_ZARCH = 1 << 1, | |
44 | HWCAP_S390_STFLE = 1 << 2, | |
45 | HWCAP_S390_MSA = 1 << 3, | |
46 | HWCAP_S390_LDISP = 1 << 4, | |
47 | HWCAP_S390_EIMM = 1 << 5, | |
48 | HWCAP_S390_DFP = 1 << 6, | |
f957edde AK |
49 | HWCAP_S390_HPAGE = 1 << 7, |
50 | HWCAP_S390_ETF3EH = 1 << 8, | |
51 | HWCAP_S390_HIGH_GPRS = 1 << 9, | |
d0f8457e | 52 | HWCAP_S390_TE = 1 << 10, |
4e28fa80 | 53 | HWCAP_S390_VX = 1 << 11, |
33516494 UD |
54 | }; |
55 | ||
56 | #define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \ | |
57 | | HWCAP_S390_EIMM | HWCAP_S390_DFP) | |
58 | ||
59 | /* We cannot provide a general printing function. */ | |
1ae8bfe0 | 60 | #define _dl_procinfo(type, word) -1 |
33516494 UD |
61 | |
62 | static inline const char * | |
63 | __attribute__ ((unused)) | |
64 | _dl_hwcap_string (int idx) | |
65 | { | |
66 | return GLRO(dl_s390_cap_flags)[idx]; | |
67 | }; | |
68 | ||
69 | static inline const char * | |
70 | __attribute__ ((unused)) | |
71 | _dl_platform_string (int idx) | |
72 | { | |
73 | return GLRO(dl_s390_platforms)[idx - _DL_FIRST_PLATFORM]; | |
74 | }; | |
75 | ||
76 | static inline int | |
77 | __attribute__ ((unused, always_inline)) | |
78 | _dl_string_hwcap (const char *str) | |
79 | { | |
80 | int i; | |
81 | ||
82 | for (i = 0; i < _DL_HWCAP_COUNT; i++) | |
83 | { | |
84 | if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0) | |
85 | return i; | |
86 | } | |
87 | return -1; | |
88 | }; | |
89 | ||
90 | static inline int | |
91 | __attribute__ ((unused, always_inline)) | |
92 | _dl_string_platform (const char *str) | |
93 | { | |
94 | int i; | |
95 | ||
96 | if (str != NULL) | |
97 | for (i = 0; i < _DL_PLATFORMS_COUNT; ++i) | |
98 | { | |
99 | if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0) | |
100 | return _DL_FIRST_PLATFORM + i; | |
101 | } | |
102 | return -1; | |
103 | }; | |
104 | ||
105 | #endif /* dl-procinfo.h */ |