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-rw-r--r--include/asm-x86/io.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-x86/io.h b/include/asm-x86/io.h
index 5a58b176dd61..7b292d386713 100644
--- a/include/asm-x86/io.h
+++ b/include/asm-x86/io.h
@@ -1,5 +1,11 @@
+#define ARCH_HAS_IOREMAP_WC
+
#ifdef CONFIG_X86_32
# include "io_32.h"
#else
# include "io_64.h"
#endif
+extern int ioremap_change_attr(unsigned long vaddr, unsigned long size,
+ unsigned long prot_val);
+extern void __iomem *ioremap_wc(unsigned long offset, unsigned long size);
+