#ifndef __CR_CPU_H__ #define __CR_CPU_H__ #include "asm/types.h" /* * Adopted from linux kernel. */ #define NCAPINTS (10) /* N 32-bit words worth of info */ #define NCAPINTS_BITS (NCAPINTS * 32) #define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */ #define X86_FEATURE_FXSR (0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */ #define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */ extern const char * const x86_cap_flags[NCAPINTS_BITS]; extern void cpu_set_feature(unsigned int feature); extern bool cpu_has_feature(unsigned int feature); extern int cpu_init(void); #endif /* __CR_CPU_H__ */