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/*
* x86/cpu_features.h - feature detection for x86 processors
*/
#ifndef LIB_X86_CPU_FEATURES_H
#define LIB_X86_CPU_FEATURES_H
#include "../lib_common.h"
#if (defined(__i386__) || defined(__x86_64__)) && \
COMPILER_SUPPORTS_TARGET_FUNCTION_ATTRIBUTE
# define X86_CPU_FEATURES_ENABLED 1
#else
# define X86_CPU_FEATURES_ENABLED 0
#endif
#if X86_CPU_FEATURES_ENABLED
#define X86_CPU_FEATURE_SSE2 0x00000001
#define X86_CPU_FEATURE_PCLMUL 0x00000002
#define X86_CPU_FEATURE_AVX 0x00000004
#define X86_CPU_FEATURE_AVX2 0x00000008
#define X86_CPU_FEATURE_BMI2 0x00000010
#define X86_CPU_FEATURE_AVX512BW 0x00000020
#define X86_CPU_FEATURES_KNOWN 0x80000000
extern volatile u32 _cpu_features;
void setup_cpu_features(void);
static inline u32 get_cpu_features(void)
{
if (_cpu_features == 0)
setup_cpu_features();
return _cpu_features;
}
#endif /* X86_CPU_FEATURES_ENABLED */
#endif /* LIB_X86_CPU_FEATURES_H */
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