4 #include <linux/types.h>
5 #include <asm/pgtable_types.h>
7 bool pat_enabled(void);
8 void pat_disable(const char *reason);
9 extern void pat_init(void);
11 extern int reserve_memtype(u64 start, u64 end,
12 enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
13 extern int free_memtype(u64 start, u64 end);
15 extern int kernel_map_sync_memtype(u64 base, unsigned long size,
16 enum page_cache_mode pcm);
18 int io_reserve_memtype(resource_size_t start, resource_size_t end,
19 enum page_cache_mode *pcm);
21 void io_free_memtype(resource_size_t start, resource_size_t end);
23 #endif /* _ASM_X86_PAT_H */