x86: make e820_end return end_of_ram again for 64bit

even on 64bit systems with less than 4G RAM, we can now use fixmap
to handle acpi SIT near end of ram.

change e820_end to e820_end_of_ram again?
or e820_ram_pfn?

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 66fd5bd78318b36c247593d45205001303d2a1bf..9836a079cfd9c8621cdb1d8844b796947485987b 100644 (file)
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1066,10 +1066,8 @@ unsigned long __init e820_end(void)
                struct e820entry *ei = &e820.map[i];
                unsigned long end_pfn;
 
-#ifdef CONFIG_X86_32
                if (ei->type != E820_RAM)
                        continue;
-#endif
 
                end_pfn = (ei->addr + ei->size) >> PAGE_SHIFT;
                if (end_pfn > last_pfn)