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106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/* s390 version of processor capability information handling macros.
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Copyright (C) 2006-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _DL_PROCINFO_H
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#define _DL_PROCINFO_H 1
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#include <ldsodefs.h>
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#define _DL_HWCAP_COUNT 12
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#define _DL_PLATFORMS_COUNT 8
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/* The kernel provides up to 32 capability bits with elf_hwcap. */
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#define _DL_FIRST_PLATFORM 32
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/* Mask to filter out platforms. */
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#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
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<< _DL_FIRST_PLATFORM)
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/* Hardware capability bit numbers are derived directly from the
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facility indications as stored by the "store facility list" (STFL)
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instruction.
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highgprs is an alien in that list. It describes a *kernel*
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capability. */
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enum
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{
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HWCAP_S390_ESAN3 = 1 << 0,
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HWCAP_S390_ZARCH = 1 << 1,
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HWCAP_S390_STFLE = 1 << 2,
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HWCAP_S390_MSA = 1 << 3,
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HWCAP_S390_LDISP = 1 << 4,
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HWCAP_S390_EIMM = 1 << 5,
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HWCAP_S390_DFP = 1 << 6,
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HWCAP_S390_HPAGE = 1 << 7,
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HWCAP_S390_ETF3EH = 1 << 8,
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HWCAP_S390_HIGH_GPRS = 1 << 9,
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HWCAP_S390_TE = 1 << 10,
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HWCAP_S390_VX = 1 << 11,
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};
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#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
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| HWCAP_S390_EIMM | HWCAP_S390_DFP)
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/* We cannot provide a general printing function. */
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#define _dl_procinfo(type, word) -1
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static inline const char *
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__attribute__ ((unused))
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_dl_hwcap_string (int idx)
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{
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return GLRO(dl_s390_cap_flags)[idx];
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};
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static inline const char *
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__attribute__ ((unused))
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_dl_platform_string (int idx)
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{
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return GLRO(dl_s390_platforms)[idx - _DL_FIRST_PLATFORM];
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};
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static inline int
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__attribute__ ((unused, always_inline))
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_dl_string_hwcap (const char *str)
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{
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int i;
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for (i = 0; i < _DL_HWCAP_COUNT; i++)
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{
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if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0)
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return i;
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}
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return -1;
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};
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static inline int
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__attribute__ ((unused, always_inline))
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_dl_string_platform (const char *str)
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{
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int i;
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if (str != NULL)
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for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
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{
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if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0)
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return _DL_FIRST_PLATFORM + i;
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}
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return -1;
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};
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#endif /* dl-procinfo.h */
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