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| 1 | #ifndef __ASM_X86_MTRR_H__ |
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| 2 | #define __ASM_X86_MTRR_H__ |
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| 3 | |
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| 4 | #include <xen/config.h> |
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| 5 | |
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| 6 | /* These are the region types. They match the architectural specification. */ |
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| 7 | #define MTRR_TYPE_UNCACHABLE 0 |
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| 8 | #define MTRR_TYPE_WRCOMB 1 |
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| 9 | #define MTRR_TYPE_WRTHROUGH 4 |
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| 10 | #define MTRR_TYPE_WRPROT 5 |
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| 11 | #define MTRR_TYPE_WRBACK 6 |
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| 12 | #define MTRR_NUM_TYPES 7 |
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| 13 | |
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| 14 | extern int mtrr_add(unsigned long base, unsigned long size, |
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| 15 | unsigned int type, char increment); |
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| 16 | extern int mtrr_add_page(unsigned long base, unsigned long size, |
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| 17 | unsigned int type, char increment); |
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| 18 | extern int mtrr_del(int reg, unsigned long base, unsigned long size); |
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| 19 | extern int mtrr_del_page(int reg, unsigned long base, unsigned long size); |
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| 20 | extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi); |
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| 21 | |
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| 22 | #endif /* __ASM_X86_MTRR_H__ */ |
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