ARRs (= MTRRs) */<br>
#define X86_FEATURE_CENTAUR_MCR	(3*32+ 3) /* Centaur MCRs (= MTRRs) */<br>
/* cpu types for specific tunings: */<br>
#define X86_FEATURE_K8		(3*32+ 4) /* Opteron, Athlon64 */<br>
#define X86_FEATURE_K7		(3*32+ 5) /* Athlon */<br>
#define X86_FEATURE_P3		(3*32+ 6) /* P3 */<br>
#define X86_FEATURE_P4		(3*32+ 7) /* P4 */<br>
#define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */<br>
#define X86_FEATURE_UP		(3*32+ 9) /* smp kernel running on up */<br>
#define X86_FEA