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/* s390 version of processor capability information handling macros.
Copyright (C) 2006-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _DL_PROCINFO_H
#define _DL_PROCINFO_H 1
#include <ldsodefs.h>
#define _DL_HWCAP_COUNT 15
#define _DL_PLATFORMS_COUNT 9
/* The kernel provides up to 32 capability bits with elf_hwcap. */
#define _DL_FIRST_PLATFORM 32
/* Mask to filter out platforms. */
#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
<< _DL_FIRST_PLATFORM)
/* Hardware capability bit numbers are derived directly from the
facility indications as stored by the "store facility list" (STFL)
instruction.
highgprs is an alien in that list. It describes a *kernel*
capability. */
enum
{
HWCAP_S390_ESAN3 = 1 << 0,
HWCAP_S390_ZARCH = 1 << 1,
HWCAP_S390_STFLE = 1 << 2,
HWCAP_S390_MSA = 1 << 3,
HWCAP_S390_LDISP = 1 << 4,
HWCAP_S390_EIMM = 1 << 5,
HWCAP_S390_DFP = 1 << 6,
HWCAP_S390_HPAGE = 1 << 7,
HWCAP_S390_ETF3EH = 1 << 8,
HWCAP_S390_HIGH_GPRS = 1 << 9,
HWCAP_S390_TE = 1 << 10,
HWCAP_S390_VX = 1 << 11,
HWCAP_S390_VXD = 1 << 12,
HWCAP_S390_VXE = 1 << 13,
HWCAP_S390_GS = 1 << 14,
};
#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
| HWCAP_S390_EIMM | HWCAP_S390_DFP \
| HWCAP_S390_VX | HWCAP_S390_VXE)
/* We cannot provide a general printing function. */
#define _dl_procinfo(type, word) -1
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_s390_cap_flags)[idx];
};
static inline int
__attribute__ ((unused, always_inline))
_dl_string_hwcap (const char *str)
{
int i;
for (i = 0; i < _DL_HWCAP_COUNT; i++)
{
if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0)
return i;
}
return -1;
};
static inline int
__attribute__ ((unused, always_inline))
_dl_string_platform (const char *str)
{
int i;
if (str != NULL)
for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
{
if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0)
return _DL_FIRST_PLATFORM + i;
}
return -1;
};
#endif /* dl-procinfo.h */
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