83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* cpuid.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef WOLF_CRYPT_CPUID_H
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#define WOLF_CRYPT_CPUID_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if (defined(WOLFSSL_X86_64_BUILD) || defined(USE_INTEL_SPEEDUP) || \
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defined(WOLFSSL_AESNI) || defined(WOLFSSL_SP_X86_64_ASM)) && \
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!defined(WOLFSSL_NO_ASM)
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#define HAVE_CPUID
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#define HAVE_CPUID_INTEL
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#endif
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#ifdef HAVE_CPUID_INTEL
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#define CPUID_AVX1 0x0001
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#define CPUID_AVX2 0x0002
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#define CPUID_RDRAND 0x0004
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#define CPUID_RDSEED 0x0008
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#define CPUID_BMI2 0x0010 /* MULX, RORX */
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#define CPUID_AESNI 0x0020
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#define CPUID_ADX 0x0040 /* ADCX, ADOX */
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#define CPUID_MOVBE 0x0080 /* Move and byte swap */
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#define CPUID_BMI1 0x0100 /* ANDN */
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#define IS_INTEL_AVX1(f) ((f) & CPUID_AVX1)
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#define IS_INTEL_AVX2(f) ((f) & CPUID_AVX2)
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#define IS_INTEL_RDRAND(f) ((f) & CPUID_RDRAND)
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#define IS_INTEL_RDSEED(f) ((f) & CPUID_RDSEED)
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#define IS_INTEL_BMI2(f) ((f) & CPUID_BMI2)
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#define IS_INTEL_AESNI(f) ((f) & CPUID_AESNI)
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#define IS_INTEL_ADX(f) ((f) & CPUID_ADX)
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#define IS_INTEL_MOVBE(f) ((f) & CPUID_MOVBE)
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#define IS_INTEL_BMI1(f) ((f) & CPUID_BMI1)
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#endif
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#ifdef HAVE_CPUID
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void cpuid_set_flags(void);
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word32 cpuid_get_flags(void);
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/* Public APIs to modify flags. */
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WOLFSSL_API void cpuid_select_flags(word32 flags);
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WOLFSSL_API void cpuid_set_flag(word32 flag);
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WOLFSSL_API void cpuid_clear_flag(word32 flag);
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#endif
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* WOLF_CRYPT_CPUID_H */
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