projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 3ec8dbcb | 2 | * local MTRR defines. |
| 1da177e4 LT |
3 | */ |
| 4 | ||
| 2d2ee8de PJ |
5 | #include <linux/types.h> |
| 6 | #include <linux/stddef.h> | |
| 1da177e4 | 7 | |
| 1da177e4 LT |
8 | #define MTRR_CHANGE_MASK_FIXED 0x01 |
| 9 | #define MTRR_CHANGE_MASK_VARIABLE 0x02 | |
| 10 | #define MTRR_CHANGE_MASK_DEFTYPE 0x04 | |
| 11 | ||
| b558bc0a | 12 | extern unsigned int mtrr_usage_table[MTRR_MAX_VAR_RANGES]; |
| 99fc8d42 | 13 | |
| 1da177e4 LT |
14 | struct mtrr_ops { |
| 15 | u32 vendor; | |
| 16 | u32 use_intel_if; | |
| 1da177e4 LT |
17 | void (*set)(unsigned int reg, unsigned long base, |
| 18 | unsigned long size, mtrr_type type); | |
| 19 | void (*set_all)(void); | |
| 20 | ||
| 21 | void (*get)(unsigned int reg, unsigned long *base, | |
| 3ec8dbcb | 22 | unsigned long *size, mtrr_type *type); |
| 365bff80 JB |
23 | int (*get_free_region)(unsigned long base, unsigned long size, |
| 24 | int replace_reg); | |
| 1da177e4 LT |
25 | int (*validate_add_page)(unsigned long base, unsigned long size, |
| 26 | unsigned int type); | |
| 27 | int (*have_wrcomb)(void); | |
| 28 | }; | |
| 29 | ||
| 365bff80 JB |
30 | extern int generic_get_free_region(unsigned long base, unsigned long size, |
| 31 | int replace_reg); | |
| 1da177e4 LT |
32 | extern int generic_validate_add_page(unsigned long base, unsigned long size, |
| 33 | unsigned int type); | |
| 34 | ||
| 3b9cfc0a | 35 | extern const struct mtrr_ops generic_mtrr_ops; |
| 1da177e4 LT |
36 | |
| 37 | extern int positive_have_wrcomb(void); | |
| 38 | ||
| 39 | /* library functions for processor-specific routines */ | |
| 40 | struct set_mtrr_context { | |
| 3ec8dbcb JSR |
41 | unsigned long flags; |
| 42 | unsigned long cr4val; | |
| 43 | u32 deftype_lo; | |
| 44 | u32 deftype_hi; | |
| 45 | u32 ccr3; | |
| 1da177e4 LT |
46 | }; |
| 47 | ||
| 1da177e4 LT |
48 | void set_mtrr_done(struct set_mtrr_context *ctxt); |
| 49 | void set_mtrr_cache_disable(struct set_mtrr_context *ctxt); | |
| 50 | void set_mtrr_prepare_save(struct set_mtrr_context *ctxt); | |
| 51 | ||
| 95ffa243 YL |
52 | void fill_mtrr_var_range(unsigned int index, |
| 53 | u32 base_lo, u32 base_hi, u32 mask_lo, u32 mask_hi); | |
| f9626104 | 54 | bool get_mtrr_state(void); |
| ad025a73 | 55 | void mtrr_bp_pat_init(void); |
| 1da177e4 | 56 | |
| 404f6aac | 57 | extern void __init set_mtrr_ops(const struct mtrr_ops *ops); |
| 1da177e4 | 58 | |
| 6c5806ca | 59 | extern u64 size_or_mask, size_and_mask; |
| 3b9cfc0a | 60 | extern const struct mtrr_ops *mtrr_if; |
| 1da177e4 LT |
61 | |
| 62 | #define is_cpu(vnd) (mtrr_if && mtrr_if->vendor == X86_VENDOR_##vnd) | |
| 63 | #define use_intel() (mtrr_if && mtrr_if->use_intel_if == 1) | |
| 64 | ||
| 65 | extern unsigned int num_var_ranges; | |
| 95ffa243 | 66 | extern u64 mtrr_tom2; |
| f0348c43 | 67 | extern struct mtrr_state_type mtrr_state; |
| 1da177e4 | 68 | |
| 1da177e4 | 69 | void mtrr_state_warn(void); |
| 365bff80 | 70 | const char *mtrr_attrib_to_str(int x); |
| 1da177e4 LT |
71 | void mtrr_wrmsr(unsigned, unsigned, unsigned); |
| 72 | ||
| 16c02ed7 HH |
73 | /* CPU specific mtrr init functions */ |
| 74 | int amd_init_mtrr(void); | |
| 75 | int cyrix_init_mtrr(void); | |
| 76 | int centaur_init_mtrr(void); | |
| 0d890355 YL |
77 | |
| 78 | extern int changed_by_mtrr_cleanup; | |
| 79 | extern int mtrr_cleanup(unsigned address_bits); |