1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
index b0e70056838..2cd07b9422f 100644
--- a/arch/x86/include/asm/pat.h
+++ b/arch/x86/include/asm/pat.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_PAT_H
 
 #include <linux/types.h>
+#include <asm/pgtable_types.h>
 
 #ifdef CONFIG_X86_PAT
 extern int pat_enabled;
@@ -17,5 +18,9 @@ extern int free_memtype(u64 start, u64 end);
 
 extern int kernel_map_sync_memtype(u64 base, unsigned long size,
                 unsigned long flag);
+extern void map_devmem(unsigned long pfn, unsigned long size,
+                       struct pgprot vma_prot);
+extern void unmap_devmem(unsigned long pfn, unsigned long size,
+                         struct pgprot vma_prot);
 
 #endif /* _ASM_X86_PAT_H */