git://sourceware.org / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 33516494 | 1 | /* s390 version of processor capability information handling macros. |
| f957edde | 2 | Copyright (C) 2006, 2009 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 | ||
| f957edde | 24 | #define _DL_HWCAP_COUNT 10 |
| 33516494 | 25 | |
| f957edde | 26 | #define _DL_PLATFORMS_COUNT 5 |
| 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 | ||
| 34 | /* Hardware capablity bit numbers are derived directly from the | |
| 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, |
| 33516494 UD |
53 | }; |
| 54 | ||
| 55 | #define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \ | |
| 56 | | HWCAP_S390_EIMM | HWCAP_S390_DFP) | |
| 57 | ||
| 58 | /* We cannot provide a general printing function. */ | |
| 59 | #define _dl_procinfo(word) -1 | |
| 60 | ||
| 61 | static inline const char * | |
| 62 | __attribute__ ((unused)) | |
| 63 | _dl_hwcap_string (int idx) | |
| 64 | { | |
| 65 | return GLRO(dl_s390_cap_flags)[idx]; | |
| 66 | }; | |
| 67 | ||
| 68 | static inline const char * | |
| 69 | __attribute__ ((unused)) | |
| 70 | _dl_platform_string (int idx) | |
| 71 | { | |
| 72 | return GLRO(dl_s390_platforms)[idx - _DL_FIRST_PLATFORM]; | |
| 73 | }; | |
| 74 | ||
| 75 | static inline int | |
| 76 | __attribute__ ((unused, always_inline)) | |
| 77 | _dl_string_hwcap (const char *str) | |
| 78 | { | |
| 79 | int i; | |
| 80 | ||
| 81 | for (i = 0; i < _DL_HWCAP_COUNT; i++) | |
| 82 | { | |
| 83 | if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0) | |
| 84 | return i; | |
| 85 | } | |
| 86 | return -1; | |
| 87 | }; | |
| 88 | ||
| 89 | static inline int | |
| 90 | __attribute__ ((unused, always_inline)) | |
| 91 | _dl_string_platform (const char *str) | |
| 92 | { | |
| 93 | int i; | |
| 94 | ||
| 95 | if (str != NULL) | |
| 96 | for (i = 0; i < _DL_PLATFORMS_COUNT; ++i) | |
| 97 | { | |
| 98 | if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0) | |
| 99 | return _DL_FIRST_PLATFORM + i; | |
| 100 | } | |
| 101 | return -1; | |
| 102 | }; | |
| 103 | ||
| 104 | #endif /* dl-procinfo.h */ |