diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index e3b515fbf0c2..83965dd63d2f 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -673,6 +673,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
 
 #define update_mmu_cache_pmd(vma, address, pmd) do { } while (0)
 
+#define	kc_vaddr_to_offset(v) ((v) & ~VA_START)
+#define	kc_offset_to_vaddr(o) ((o) | VA_START)
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __ASM_PGTABLE_H */