x86: unify ioremap

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 4d919c37d1d6..f4a2082568c8 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -19,6 +19,18 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+#ifdef CONFIG_X86_64
+
+unsigned long __phys_addr(unsigned long x)
+{
+        if (x >= __START_KERNEL_map)
+                return x - __START_KERNEL_map + phys_base;
+        return x - PAGE_OFFSET;
+}
+EXPORT_SYMBOL(__phys_addr);
+
+#endif
+
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
@@ -49,6 +61,7 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
          * memmap entry.
          */
         err = change_page_attr_addr(vaddr, npages, prot);
+
         if (!err)
                 global_flush_tlb();
 
@@ -83,6 +96,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
         if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
                 return (__force void __iomem *)phys_to_virt(phys_addr);
 
+#ifdef CONFIG_X86_32
         /*
          * Don't allow anybody to remap normal RAM that we're using..
          */
@@ -98,6 +112,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
                         if (!PageReserved(page))
                                 return NULL;
         }
+#endif
 
         pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
@@ -211,6 +226,7 @@ void iounmap(volatile void __iomem *addr)
 }
 EXPORT_SYMBOL(iounmap);
 
+#ifdef CONFIG_X86_32
 
 int __initdata early_ioremap_debug;
 
@@ -443,3 +459,5 @@ void __this_fixmap_does_not_exist(void)
 {
         WARN_ON(1);
 }
+
+#endif /* CONFIG_X86_32 */