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David Howells7f386ac2011-03-18 16:54:30 +00001/* MN10300 CPU cache invalidation routines
2 *
3 * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#include <linux/sys.h>
12#include <linux/linkage.h>
13#include <asm/smp.h>
14#include <asm/page.h>
15#include <asm/cache.h>
16#include <asm/irqflags.h>
17#include <asm/cacheflush.h>
18#include "cache.inc"
19
20 .am33_2
21
22 .globl debugger_local_cache_flushinv
23
24###############################################################################
25#
26# void debugger_local_cache_flushinv(void)
27#
28# Invalidate the entire icache
29#
30###############################################################################
31 ALIGN
32 .globl debugger_local_cache_flushinv
33 .type debugger_local_cache_flushinv,@function
34debugger_local_cache_flushinv:
35 #
36 # we only need to invalidate the icache in this cache mode
37 #
38 mov CHCTR,a0
39 movhu (a0),d0
40 btst CHCTR_ICEN,d0
41 beq debugger_local_cache_flushinv_end
42
43 invalidate_icache 1
44
45debugger_local_cache_flushinv_end:
46 ret [],0
47 .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv