55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* MN10300 Cache flushing routines
|
|
*
|
|
* Copyright (C) 2007 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/module.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/threads.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/io.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/smp.h>
|
|
#include "cache-smp.h"
|
|
|
|
EXPORT_SYMBOL(mn10300_icache_inv);
|
|
EXPORT_SYMBOL(mn10300_icache_inv_range);
|
|
EXPORT_SYMBOL(mn10300_icache_inv_range2);
|
|
EXPORT_SYMBOL(mn10300_icache_inv_page);
|
|
EXPORT_SYMBOL(mn10300_dcache_inv);
|
|
EXPORT_SYMBOL(mn10300_dcache_inv_range);
|
|
EXPORT_SYMBOL(mn10300_dcache_inv_range2);
|
|
EXPORT_SYMBOL(mn10300_dcache_inv_page);
|
|
|
|
#ifdef CONFIG_MN10300_CACHE_WBACK
|
|
EXPORT_SYMBOL(mn10300_dcache_flush);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_inv);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_inv_range);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_inv_range2);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_inv_page);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_range);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_range2);
|
|
EXPORT_SYMBOL(mn10300_dcache_flush_page);
|
|
#endif
|
|
|
|
/*
|
|
* allow userspace to flush the instruction cache
|
|
*/
|
|
asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
|
|
{
|
|
if (end < start)
|
|
return -EINVAL;
|
|
|
|
flush_icache_range(start, end);
|
|
return 0;
|
|
}
|