sysdeps/s390/cpu-features.h

   1 /* Initialize cpu feature data.  s390x version.
   2    Copyright (C) 2023 Free Software Foundation, Inc.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef __CPU_FEATURES_S390X_H
  19 # define __CPU_FEATURES_S390X_H
  20
  21 #define S390_STFLE_BITS_Z10  34 /* General instructions extension */
  22 #define S390_STFLE_BITS_Z196 45 /* Distinct operands, pop ... */
  23 #define S390_STFLE_BITS_ARCH13_MIE3 61 /* Miscellaneous-Instruction-Extensions
  24                                           Facility 3, e.g. mvcrl.  */
  25
  26 #define S390_STFLE_MASK_ARCH13_MIE3 (1ULL << (63 - S390_STFLE_BITS_ARCH13_MIE3))
  27
  28
  29 #define S390_IS_ARCH13_MIE3(STFLE_BITS_ARRAY)                   \
  30   (((STFLE_BITS_ARRAY)[0] & S390_STFLE_MASK_ARCH13_MIE3) != 0)
  31
  32 #define S390_IS_Z196(STFLE_BITS_ARRAY)                  \
  33   (((STFLE_BITS_ARRAY)[0] & (1ULL << (63 - S390_STFLE_BITS_Z196))) != 0)
  34
  35 #define S390_IS_Z10(STFLE_BITS_ARRAY)                           \
  36   (((STFLE_BITS_ARRAY)[0] & (1ULL << (63 - S390_STFLE_BITS_Z10))) != 0)
  37
  38 struct cpu_features
  39 {
  40   unsigned long int hwcap;
  41   unsigned long int __reserved_hwcap2;
  42   unsigned long long stfle_bits[3];
  43   unsigned long long __reserved[11];
  44 };
  45
  46 #endif /* __CPU_FEATURES_S390X_H  */