1#ifndef __PAT_INTERNAL_H_ 2#define __PAT_INTERNAL_H_ 3 4extern int pat_debug_enable; 5 6#define dprintk(fmt, arg...) \ 7 do { if (pat_debug_enable) printk(KERN_INFO fmt, ##arg); } while (0) 8 9struct memtype { 10 u64 start; 11 u64 end; 12 u64 subtree_max_end; 13 unsigned long type; 14 struct rb_node rb; 15}; 16 17static inline char *cattr_name(unsigned long flags) 18{ 19 switch (flags & _PAGE_CACHE_MASK) { 20 case _PAGE_CACHE_UC: return "uncached"; 21 case _PAGE_CACHE_UC_MINUS: return "uncached-minus"; 22 case _PAGE_CACHE_WB: return "write-back"; 23 case _PAGE_CACHE_WC: return "write-combining"; 24 default: return "broken"; 25 } 26} 27 28#ifdef CONFIG_X86_PAT 29extern int rbt_memtype_check_insert(struct memtype *new, 30 unsigned long *new_type); 31extern struct memtype *rbt_memtype_erase(u64 start, u64 end); 32extern struct memtype *rbt_memtype_lookup(u64 addr); 33extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos); 34#else 35static inline int rbt_memtype_check_insert(struct memtype *new, 36 unsigned long *new_type) 37{ return 0; } 38static inline struct memtype *rbt_memtype_erase(u64 start, u64 end) 39{ return NULL; } 40static inline struct memtype *rbt_memtype_lookup(u64 addr) 41{ return NULL; } 42static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos) 43{ return 0; } 44#endif 45 46#endif /* __PAT_INTERNAL_H_ */ 47