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/* Initialize cpu feature data. s390x version.
Copyright (C) 2023-2025 Free Software Foundation, Inc.
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
<https://www.gnu.org/licenses/>. */
#ifndef __CPU_FEATURES_S390X_H
# define __CPU_FEATURES_S390X_H
/* The following stfle bit definitions are intended to be used for the
glibc internal stfle_orig and stfle_filtered fields in cpu_features
struct. They can't be used on the double words retrieved by the
stfle-instruction. */
/* Facility bit 34: z10: General instructions extension. */
#define S390_STFLE_BIT34_Z10 (1ULL << 0)
/* Facility bit 45: z196: Distinct operands, popcount, ... */
#define S390_STFLE_BIT45_Z196 (1ULL << 1)
/* Facility bit 61: arch13/z15: Miscellaneous-Instruction-Extensions
Facility 3, e.g. mvcrl. */
#define S390_STFLE_BIT61_ARCH13_MIE3 (1ULL << 2)
/* Facility bit 84: arch15/z17: Miscellaneous-instruction-extensions
facility 4 */
#define S390_STFLE_BIT84_ARCH15_MIE4 (1ULL << 3)
/* Facility bit 198: arch15/z17: Vector-enhancements-facility 3 */
#define S390_STFLE_BIT198_ARCH15_VXRS_EXT3 (1ULL << 4)
/* Facility bit 199: arch15/z17: Vector-Packed-Decimal-Enhancement
Facility 3 */
#define S390_STFLE_BIT199_ARCH15_VXRS_PDE3 (1ULL << 5)
/* Facility bit 201: arch15/z17: CPU: Concurrent-Functions Facility */
#define S390_STFLE_BIT201_ARCH15_CON (1ULL << 6)
#define S390_IS_ARCH15(STFLE_BITS) \
((((STFLE_BITS) & S390_STFLE_BIT84_ARCH15_MIE4) != 0) \
&& (((STFLE_BITS) & S390_STFLE_BIT198_ARCH15_VXRS_EXT3) != 0) \
&& (((STFLE_BITS) & S390_STFLE_BIT199_ARCH15_VXRS_PDE3) != 0) \
&& (((STFLE_BITS) & S390_STFLE_BIT201_ARCH15_CON) != 0))
#define S390_IS_ARCH13_MIE3(STFLE_BITS) \
(((STFLE_BITS) & S390_STFLE_BIT61_ARCH13_MIE3) != 0)
#define S390_IS_Z196(STFLE_BITS) \
(((STFLE_BITS) & S390_STFLE_BIT45_Z196) != 0)
#define S390_IS_Z10(STFLE_BITS) \
(((STFLE_BITS) & S390_STFLE_BIT34_Z10) != 0)
struct cpu_features
{
unsigned long int hwcap;
unsigned long int __reserved_hwcap2;
unsigned long long __reserved;
unsigned long long stfle_orig;
unsigned long long stfle_filtered;
unsigned long long __reserved2[11];
};
#endif /* __CPU_FEATURES_S390X_H */
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