EXTERNAL_HEADERS/corecrypto/cc_runtime_config.h

   1 /*
   2  *  cc_runtime_config.h
   3  *  corecrypto
   4  *
   5  *  Created on 09/18/2012
   6  *
   7  *  Copyright (c) 2012,2014,2015 Apple Inc. All rights reserved.
   8  *
   9  */
  10
  11 #ifndef CORECRYPTO_CC_RUNTIME_CONFIG_H_
  12 #define CORECRYPTO_CC_RUNTIME_CONFIG_H_
  13
  14 #include <corecrypto/cc_config.h>
  15
  16 /* Only intel systems have these runtime switches today. */
  17 #if (CCSHA1_VNG_INTEL || CCSHA2_VNG_INTEL || CCAES_INTEL_ASM) \
  18     && (defined(__x86_64__) || defined(__i386__))
  19
  20 #if CC_KERNEL
  21     #include <i386/cpuid.h>
  22     #define CC_HAS_AESNI() ((cpuid_features() & CPUID_FEATURE_AES) != 0)
  23     #define CC_HAS_SupplementalSSE3() ((cpuid_features() & CPUID_FEATURE_SSSE3) != 0)
  24     #define CC_HAS_AVX1() ((cpuid_features() & CPUID_FEATURE_AVX1_0) != 0)
  25     #define CC_HAS_AVX2() ((cpuid_info()->cpuid_leaf7_features & CPUID_LEAF7_FEATURE_AVX2) != 0)
  26     #define CC_HAS_AVX512_AND_IN_KERNEL()    ((cpuid_info()->cpuid_leaf7_features & CPUID_LEAF7_FEATURE_AVX512F) !=0)
  27
  28 #elif CC_XNU_KERNEL_AVAILABLE
  29     # include <System/i386/cpu_capabilities.h>
  30
  31     #ifndef kHasAVX2_0 /* 10.8 doesn't have kHasAVX2_0 defined */
  32     #define kHasAVX2_0 0
  33     #endif
  34
  35     extern int _cpu_capabilities;
  36     #define CC_HAS_AESNI() (_cpu_capabilities & kHasAES)
  37     #define CC_HAS_SupplementalSSE3() (_cpu_capabilities & kHasSupplementalSSE3)
  38     #define CC_HAS_AVX1() (_cpu_capabilities & kHasAVX1_0)
  39     #define CC_HAS_AVX2() (_cpu_capabilities & kHasAVX2_0)
  40     #define CC_HAS_AVX512_AND_IN_KERNEL() 0
  41 #else
  42     #define CC_HAS_AESNI() 0
  43     #define CC_HAS_SupplementalSSE3() 0
  44     #define CC_HAS_AVX1() 0
  45     #define CC_HAS_AVX2() 0
  46     #define CC_HAS_AVX512_AND_IN_KERNEL()  0
  47 #endif
  48
  49 #endif /* !(defined(__x86_64__) || defined(__i386__)) */
  50
  51 #endif /* CORECRYPTO_CC_RUNTIME_CONFIG_H_ */