/* s390 version of processor capability information handling macros.

   Copyright (C) 2006-2018 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 19

#define _DL_PLATFORMS_COUNT	10

/* 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,

  HWCAP_S390_VXRS_EXT2 = 1 << 15,

  HWCAP_S390_VXRS_PDE = 1 << 16,

  HWCAP_S390_SORT = 1 << 17,

  HWCAP_S390_DFLT = 1 << 18,

};

#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \

			 | HWCAP_S390_EIMM | HWCAP_S390_DFP  \

			 | HWCAP_S390_VX | HWCAP_S390_VXE    \

			 | HWCAP_S390_VXRS_EXT2)

/* 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 */