1 files changed, 47 insertions, 0 deletions

diff --git a/arch/mn10300/mm/cache-dbg-inv.S b/arch/mn10300/mm/cache-dbg-inv.S
new file mode 100644
index 000000000000..eba2d6dca066
--- /dev/null
+++ b/arch/mn10300/mm/cache-dbg-inv.S
@@ -0,0 +1,47 @@
+/* MN10300 CPU cache invalidation routines
+ *
+ * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/sys.h>
+#include <linux/linkage.h>
+#include <asm/smp.h>
+#include <asm/page.h>
+#include <asm/cache.h>
+#include <asm/irqflags.h>
+#include <asm/cacheflush.h>
+#include "cache.inc"
+
+        .am33_2
+
+        .globl  debugger_local_cache_flushinv
+
+###############################################################################
+#
+# void debugger_local_cache_flushinv(void)
+#
+# Invalidate the entire icache
+#
+###############################################################################
+        ALIGN
+        .globl  debugger_local_cache_flushinv
+        .type   debugger_local_cache_flushinv,@function
+debugger_local_cache_flushinv:
+        #
+        # we only need to invalidate the icache in this cache mode
+        #
+        mov     CHCTR,a0
+        movhu   (a0),d0
+        btst    CHCTR_ICEN,d0
+        beq     debugger_local_cache_flushinv_end
+
+        invalidate_icache 1
+
+debugger_local_cache_flushinv_end:
+        ret     [],0
+        .size   debugger_local_cache_flushinv,.-debugger_local_cache_flushinv