[net-next-2.6.git] / arch / x86 / mm / pat_internal.h

#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 struct memtype *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 struct memtype *rbt_memtype_erase(u64 start, u64 end)
{ return NULL; }
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_ */
Commit	Line	Data
be5a0c12	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;
9e41a49a	12	u64 subtree_max_end;
be5a0c12	13	unsigned long type;
be5a0c12	14	struct rb_node rb;
	15	};
	16
	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
9e41a49a PV	28	#ifdef CONFIG_X86_PAT
	29	extern int rbt_memtype_check_insert(struct memtype *new,
	30	unsigned long *new_type);
20413f27	31	extern struct memtype *rbt_memtype_erase(u64 start, u64 end);
9e41a49a PV	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
	35	static inline int rbt_memtype_check_insert(struct memtype *new,
	36	unsigned long *new_type)
	37	{ return 0; }
20413f27 XF	38	static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
20413f27 XF	39	{ return NULL; }
9e41a49a PV	40	static inline struct memtype *rbt_memtype_lookup(u64 addr)
	41	{ return NULL; }
	42	static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos)
	43	{ return 0; }
	44	#endif
	45
be5a0c12	46	#endif /* __PAT_INTERNAL_H_ */