x86: cleanup machine_specific_memory_setup, v2

1. let 64bit support 88 and e801 too
2. introduce default_machine_specific_memory_setup, and reuse it
   for voyager

v2: fix 64 bit compiling

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h
index b676b0be7986..e14b6e73d266 100644
--- a/include/asm-x86/setup.h
+++ b/include/asm-x86/setup.h
@@ -42,13 +42,14 @@ void vsmp_init(void);
  */
 extern struct boot_params boot_params;
 
-#ifdef __i386__
 /*
  * Do NOT EVER look at the BIOS memory size location.
  * It does not work on many machines.
  */
 #define LOWMEMSIZE()    (0x9f000)
 
+#ifdef __i386__
+
 void __init i386_start_kernel(void);
 
 extern unsigned long init_pg_tables_start;