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
 7bool pat_enabled(void);
 8extern void pat_init(void);
 9void pat_init_cache_modes(u64);
10
11extern int reserve_memtype(u64 start, u64 end,
12		enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
13extern int free_memtype(u64 start, u64 end);
14
15extern int kernel_map_sync_memtype(u64 base, unsigned long size,
16		enum page_cache_mode pcm);
17
18int io_reserve_memtype(resource_size_t start, resource_size_t end,
19			enum page_cache_mode *pcm);
20
21void io_free_memtype(resource_size_t start, resource_size_t end);
22
23#endif /* _ASM_X86_PAT_H */