| David Howells | 7f386ac | 2011-03-18 16:54:30 +0000 | [diff] [blame] | 1 | /* 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 |
| 34 | debugger_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 | |
| 45 | debugger_local_cache_flushinv_end: |
| 46 | ret [],0 |
| 47 | .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv |