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#ifndef __PAT_INTERNAL_H_
#define __PAT_INTERNAL_H_
extern int pat_debug_enable;
#define dprintk(fmt, arg...) \
do { if (pat_debug_enable) printk(KERN_INFO fmt, ##arg); } while (0)
struct memtype {
u64 start;
u64 end;
u64 subtree_max_end;
unsigned long type;
struct rb_node rb;
};
static inline char *cattr_name(unsigned long flags)
{
switch (flags & _PAGE_CACHE_MASK) {
case _PAGE_CACHE_UC: return "uncached";
case _PAGE_CACHE_UC_MINUS: return "uncached-minus";
case _PAGE_CACHE_WB: return "write-back";
case _PAGE_CACHE_WC: return "write-combining";
default: return "broken";
}
}
#ifdef CONFIG_X86_PAT
extern int rbt_memtype_check_insert(struct memtype *new,
unsigned long *new_type);
extern int rbt_memtype_erase(u64 start, u64 end);
extern struct memtype *rbt_memtype_lookup(u64 addr);
extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos);
#else
static inline int rbt_memtype_check_insert(struct memtype *new,
unsigned long *new_type)
{ return 0; }
static inline int rbt_memtype_erase(u64 start, u64 end)
{ return 0; }
static inline struct memtype *rbt_memtype_lookup(u64 addr)
{ return NULL; }
static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos)
{ return 0; }
#endif
#endif /* __PAT_INTERNAL_H_ */
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