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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 10:07:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 10:07:50 -0700 |
| commit | 3dab04e6978e358ad2307bca563fabd6c5d2c58b (patch) | |
| tree | 893e9bc5041e7f722722fe13a3b145396f2554d8 /arch/mn10300/mm/cache-dbg-inv.S | |
| parent | 6d1e9a42e7176bbce9348274784b2e5f69223936 (diff) | |
| parent | 5a4b65ab506398ba5a35c37e06edddd387cc0add (diff) | |
| download | op-kernel-dev-3dab04e6978e358ad2307bca563fabd6c5d2c58b.zip op-kernel-dev-3dab04e6978e358ad2307bca563fabd6c5d2c58b.tar.gz | |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300:
MN10300: gcc 4.6 vs am33 inline assembly
MN10300: Deprecate gdbstub
MN10300: Allow KGDB to use the MN10300 serial ports
MN10300: Emulate single stepping in KGDB on MN10300
MN10300: Generalise kernel debugger kernel halt, reboot or power off hook
KGDB: Notify GDB of machine halt, reboot or power off
MN10300: Use KGDB
MN10300: Create generic kernel debugger hooks
MN10300: Create general kernel debugger cache flushing
MN10300: Introduce a general config option for kernel debugger hooks
MN10300: The icache invalidate functions should disable the icache first
MN10300: gdbstub: Restrict single-stepping to non-preemptable non-SMP configs
Diffstat (limited to 'arch/mn10300/mm/cache-dbg-inv.S')
| -rw-r--r-- | arch/mn10300/mm/cache-dbg-inv.S | 47 |
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 0000000..eba2d6d --- /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 |
