/*

 * local mtrr defines.

 */

#define MTRR_CHANGE_MASK_FIXED     0x01

#define MTRR_CHANGE_MASK_VARIABLE  0x02

#define MTRR_CHANGE_MASK_DEFTYPE   0x04

struct mtrr_ops {

  u32 vendor;

  bool  use_intel_if;

//  void  (*init)(void);

  void  (*set)(unsigned int reg, unsigned long base,

           unsigned long size, mtrr_type type);

  void  (*set_all)(void);

  void  (*get)(unsigned int reg, unsigned long *base,

           unsigned long *size, mtrr_type * type);

  int (*get_free_region)(unsigned long base, unsigned long size,

           int replace_reg);

  int (*validate_add_page)(unsigned long base, unsigned long size,

             unsigned int type);

  int (*have_wrcomb)(void);

};

extern int generic_get_free_region(unsigned long base, unsigned long size,

           int replace_reg);

extern int generic_validate_add_page(unsigned long base, unsigned long size,

             unsigned int type);

extern const struct mtrr_ops generic_mtrr_ops;

void get_mtrr_state(void);

extern void set_mtrr_ops(const struct mtrr_ops *);

extern u64 size_or_mask, size_and_mask;

extern const struct mtrr_ops *mtrr_if;

#define is_cpu(vnd) (mtrr_if && mtrr_if->vendor == X86_VENDOR_##vnd)

#define use_intel() (mtrr_if && mtrr_if->use_intel_if)

extern unsigned int num_var_ranges;

void mtrr_state_warn(void);