1 files changed, 41 insertions, 0 deletions
diff --git a/include/mmu.h b/include/mmu.h
new file mode 100644
index 0000000000..66b246f6d2
--- /dev/null
+++ b/include/mmu.h
@@ -0,0 +1,41 @@
+#ifndef __MMU_H
+#define __MMU_H
+
+#define MAP_UNCACHED	0
+#define MAP_CACHED	1
+
+/*
+ * Depending on the architecture the default mapping can be
+ * cached or uncached. Without ARCH_HAS_REMAP being set this
+ * is mapping type is the only one supported.
+ */
+#define MAP_DEFAULT	MAP_ARCH_DEFAULT
+
+#include <asm/mmu.h>
+
+#ifndef ARCH_HAS_REMAP
+static inline int arch_remap_range(void *start, size_t size, unsigned flags)
+{
+	if (flags == MAP_ARCH_DEFAULT)
+		return 0;
+
+	return -EINVAL;
+}
+
+static inline bool arch_can_remap(void)
+{
+	return false;
+}
+#else
+static inline bool arch_can_remap(void)
+{
+	return true;
+}
+#endif
+
+static inline int remap_range(void *start, size_t size, unsigned flags)
+{
+	return arch_remap_range(start, size, flags);
+}
+
+#endif