1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-powerpc/pgtable-64k.h b/include/asm-powerpc/pgtable-64k.h
index 4b7126c53f37..5e84f070eaf7 100644
--- a/include/asm-powerpc/pgtable-64k.h
+++ b/include/asm-powerpc/pgtable-64k.h
@@ -35,6 +35,7 @@
 #define _PAGE_HPTE_SUB  0x0ffff000 /* combo only: sub pages HPTE bits */
 #define _PAGE_HPTE_SUB0 0x08000000 /* combo only: first sub page */
 #define _PAGE_COMBO     0x10000000 /* this is a combo 4k page */
+#define _PAGE_4K_PFN    0x20000000 /* PFN is for a single 4k page */
 #define _PAGE_F_SECOND  0x00008000 /* full page: hidx bits */
 #define _PAGE_F_GIX     0x00007000 /* full page: hidx bits */
 
@@ -93,6 +94,10 @@
 #define pte_pagesize_index(pte) \
         (((pte) & _PAGE_COMBO)? MMU_PAGE_4K: MMU_PAGE_64K)
 
+#define remap_4k_pfn(vma, addr, pfn, prot)                              \
+        remap_pfn_range((vma), (addr), (pfn), PAGE_SIZE,                \
+                        __pgprot(pgprot_val((prot)) | _PAGE_4K_PFN))
+
 #endif /*  __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_PGTABLE_64K_H */