extern int mtrr_del (int reg, unsigned long base, unsigned long size);
extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);
extern int mtrr_del (int reg, unsigned long base, unsigned long size);
extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);