wimlib.net Git - wimlib/blob - include/wimlib/x86_cpu_features.h

   1 #ifndef _WIMLIB_X86_CPU_FEATURES_H
   2 #define _WIMLIB_X86_CPU_FEATURES_H
   3
   4 #include "wimlib/types.h"
   5
   6 #if defined(__i386__) || defined(__x86_64__)
   7
   8 #define X86_CPU_FEATURE_SSE             0x00000001
   9 #define X86_CPU_FEATURE_SSE2            0x00000002
  10 #define X86_CPU_FEATURE_SSE3            0x00000004
  11 #define X86_CPU_FEATURE_SSSE3           0x00000008
  12 #define X86_CPU_FEATURE_SSE4_1          0x00000010
  13 #define X86_CPU_FEATURE_SSE4_2          0x00000020
  14 #define X86_CPU_FEATURE_AVX             0x00000040
  15 #define X86_CPU_FEATURE_BMI             0x00000080
  16 #define X86_CPU_FEATURE_AVX2            0x00000100
  17 #define X86_CPU_FEATURE_BMI2            0x00000200
  18
  19 #define X86_CPU_FEATURES_KNOWN          0x80000000
  20
  21 extern u32 _x86_cpu_features;
  22
  23 extern void
  24 x86_setup_cpu_features(void);
  25
  26 /* Does the processor has the specified feature?  */
  27 static inline bool
  28 x86_have_cpu_feature(u32 feature)
  29 {
  30         if (!(_x86_cpu_features & X86_CPU_FEATURES_KNOWN))
  31                 x86_setup_cpu_features();
  32         return _x86_cpu_features & feature;
  33 }
  34
  35 #else
  36
  37 static inline bool
  38 x86_have_cpu_feature(u32 feature)
  39 {
  40         return false;
  41 }
  42
  43 #endif /* __i386__ || __x86_64__ */
  44
  45 #endif /* _WIMLIB_X86_CPU_FEATURES_H */