x86: change ioremap() to default to uncached

[sfrench/cifs-2.6.git] / include / asm-x86 / io_64.h

diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index fef0ce2ced81166e284d1ae386d08c96b70f3331..7dee3c6e9c391b5acd914b969573a25db644ba9e 100644 (file)
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -152,11 +152,6 @@ static inline void * phys_to_virt(unsigned long address)
 
 extern void __iomem *__ioremap(unsigned long offset, unsigned long size, unsigned long flags);
 
-static inline void __iomem * ioremap (unsigned long offset, unsigned long size)
-{
-       return __ioremap(offset, size, 0);
-}
-
 extern void *early_ioremap(unsigned long addr, unsigned long size);
 extern void early_iounmap(void *addr, unsigned long size);
 
@@ -165,8 +160,24 @@ extern void early_iounmap(void *addr, unsigned long size);
  * it's useful if some control registers are in such an area and write combining
  * or read caching is not desirable:
  */
-extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
+extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);
+
+static inline void __iomem *
+ioremap_cache(unsigned long offset, unsigned long size)
+{
+       return __ioremap(offset, size, 0);
+}
+
+/*
+ * The default ioremap() behavior is non-cached:
+ */
+static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+{
+       return ioremap_cache(offset, size);
+}
+
 extern void iounmap(volatile void __iomem *addr);
+
 extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
 
 /*