1#ifndef _ASM_X86_PAT_H
2#define _ASM_X86_PAT_H
3
4#include <linux/types.h>
5#include <asm/pgtable_types.h>
6
7#ifdef CONFIG_X86_PAT
8extern int pat_enabled;
9#else
10static const int pat_enabled;
11#endif
12
13extern void pat_init(void);
14
15extern int reserve_memtype(u64 start, u64 end,
16		unsigned long req_type, unsigned long *ret_type);
17extern int free_memtype(u64 start, u64 end);
18
19extern int kernel_map_sync_memtype(u64 base, unsigned long size,
20		unsigned long flag);
21
22int io_reserve_memtype(resource_size_t start, resource_size_t end,
23			unsigned long *type);
24
25void io_free_memtype(resource_size_t start, resource_size_t end);
26
27#endif /* _ASM_X86_PAT_H */
28