1 #ifndef __PAT_INTERNAL_H_
2 #define __PAT_INTERNAL_H_
3
4 extern int pat_debug_enable;
5
6 #define dprintk(fmt, arg...) \
7 do { if (pat_debug_enable) printk(KERN_INFO fmt, ##arg); } while (0)
8
9 struct memtype {
10 u64 start;
11 u64 end;
12 u64 subtree_max_end;
13 unsigned long type;
14 struct rb_node rb;
15 };
16
cattr_name(unsigned long flags)17 static 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
29 extern int rbt_memtype_check_insert(struct memtype *new,
30 unsigned long *new_type);
31 extern struct memtype *rbt_memtype_erase(u64 start, u64 end);
32 extern struct memtype *rbt_memtype_lookup(u64 addr);
33 extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos);
34 #else
rbt_memtype_check_insert(struct memtype * new,unsigned long * new_type)35 static inline int rbt_memtype_check_insert(struct memtype *new,
36 unsigned long *new_type)
37 { return 0; }
rbt_memtype_erase(u64 start,u64 end)38 static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
39 { return NULL; }
rbt_memtype_lookup(u64 addr)40 static inline struct memtype *rbt_memtype_lookup(u64 addr)
41 { return NULL; }
rbt_memtype_copy_nth_element(struct memtype * out,loff_t pos)42 static 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