1 /*
2  * local mtrr defines.
3  */
4 
5 #define MTRR_CHANGE_MASK_FIXED     0x01
6 #define MTRR_CHANGE_MASK_VARIABLE  0x02
7 #define MTRR_CHANGE_MASK_DEFTYPE   0x04
8 
9 
10 struct mtrr_ops {
11 	u32	vendor;
12 	bool	use_intel_if;
13 //	void	(*init)(void);
14 	void	(*set)(unsigned int reg, unsigned long base,
15 		       unsigned long size, mtrr_type type);
16 	void	(*set_all)(void);
17 
18 	void	(*get)(unsigned int reg, unsigned long *base,
19 		       unsigned long *size, mtrr_type * type);
20 	int	(*get_free_region)(unsigned long base, unsigned long size,
21 				   int replace_reg);
22 	int	(*validate_add_page)(unsigned long base, unsigned long size,
23 				     unsigned int type);
24 	int	(*have_wrcomb)(void);
25 };
26 
27 extern int generic_get_free_region(unsigned long base, unsigned long size,
28 				   int replace_reg);
29 extern int generic_validate_add_page(unsigned long base, unsigned long size,
30 				     unsigned int type);
31 
32 extern const struct mtrr_ops generic_mtrr_ops;
33 
34 void get_mtrr_state(void);
35 
36 extern void set_mtrr_ops(const struct mtrr_ops *);
37 
38 extern u64 size_or_mask, size_and_mask;
39 extern const struct mtrr_ops *mtrr_if;
40 
41 #define is_cpu(vnd)	(mtrr_if && mtrr_if->vendor == X86_VENDOR_##vnd)
42 #define use_intel()	(mtrr_if && mtrr_if->use_intel_if)
43 
44 extern unsigned int num_var_ranges;
45 
46 void mtrr_state_warn(void);
47