1 files changed, 34 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/sn2/cache.c b/arch/ia64/sn/kernel/sn2/cache.c
new file mode 100644
index 000000000000..bc3cfa17cd0f
--- /dev/null
+++ b/arch/ia64/sn/kernel/sn2/cache.c
@@ -0,0 +1,34 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ * 
+ * Copyright (C) 2001-2003 Silicon Graphics, Inc. All rights reserved.
+ *
+ */
+#include <linux/module.h>
+#include <asm/pgalloc.h>
+
+/**
+ * sn_flush_all_caches - flush a range of address from all caches (incl. L4)
+ * @flush_addr: identity mapped region 7 address to start flushing
+ * @bytes: number of bytes to flush
+ *
+ * Flush a range of addresses from all caches including L4. 
+ * All addresses fully or partially contained within 
+ * @flush_addr to @flush_addr + @bytes are flushed
+ * from the all caches.
+ */
+void
+sn_flush_all_caches(long flush_addr, long bytes)
+{
+	flush_icache_range(flush_addr, flush_addr+bytes);
+	/*
+	 * The last call may have returned before the caches
+	 * were actually flushed, so we call it again to make
+	 * sure.
+	 */
+	flush_icache_range(flush_addr, flush_addr+bytes);
+	mb();
+}
+EXPORT_SYMBOL(sn_flush_all_caches);