commit 240d3a7c47e3fb9c2533f63e9e323a25d91d0643
author Thomas Gleixner <tglx@linutronix.de> Wed Jan 30 13:34:05 2008 +0100
committer Ingo Molnar <mingo@elte.hu> Wed Jan 30 13:34:05 2008 +0100
tree 133f2b2bb45eb70cdc9e694db12a0a1c8ac81d4c
parent e4c1b977f0036c00ebabb60375cb63d0de9d43fa

x86: unify ioremap

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

arch/x86/mm/ioremap_32.c

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 4d919c3..f4a2082 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 @@
 	 * memmap entry.
 	 */
 	err = change_page_attr_addr(vaddr, npages, prot);
+
 	if (!err)
 		global_flush_tlb();
 
@@ -83,6 +96,7 @@
 	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 @@
 			if (!PageReserved(page))
 				return NULL;
 	}
+#endif
 
 	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
@@ -211,6 +226,7 @@
 }
 EXPORT_SYMBOL(iounmap);
 
+#ifdef CONFIG_X86_32
 
 int __initdata early_ioremap_debug;
 
@@ -443,3 +459,5 @@
 {
 	WARN_ON(1);
 }
+
+#endif /* CONFIG_X86_32 */