diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 668b7bba90e89bba47810684bbf44ed46ca7d2ed..df4e37e0b0fcee068a967dcf516e19ad9b5baef9 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -761,8 +761,6 @@ void get_new_mmu_context(struct mm_struct *mm)
 		smp_new_mmu_context_version();
 }
 
-extern unsigned long cmdline_memory_size;
-
 /* Find a free area for the bootmem map, avoiding the kernel image
  * and the initial ramdisk.
  */
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index fd46dd615b6f41bc53b32e80ecdb9b4407d7db1a..46705ef47d275fc39dff579129107ba9d638e1e0 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -777,6 +777,8 @@ extern void pgtable_cache_init(void);
 extern void sun4v_register_fault_status(void);
 extern void sun4v_ktsb_register(void);
 
+extern unsigned long cmdline_memory_size;
+
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(_SPARC64_PGTABLE_H) */