53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
|
/* kmap.c: ioremapping handlers
|
||
|
|
*
|
||
|
|
* Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
|
||
|
|
* Written by David Howells (dhowells@redhat.com)
|
||
|
|
* - Derived from arch/m68k/mm/kmap.c
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/mm.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/vmalloc.h>
|
||
|
|
|
||
|
|
#include <asm/setup.h>
|
||
|
|
#include <asm/segment.h>
|
||
|
|
#include <asm/page.h>
|
||
|
|
#include <asm/pgalloc.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/system.h>
|
||
|
|
|
||
|
|
#undef DEBUG
|
||
|
|
|
||
|
|
/*****************************************************************************/
|
||
|
|
/*
|
||
|
|
* Map some physical address range into the kernel address space.
|
||
|
|
*/
|
||
|
|
|
||
|
|
void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
|
||
|
|
{
|
||
|
|
return (void __iomem *)physaddr;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Unmap a ioremap()ed region again
|
||
|
|
*/
|
||
|
|
void iounmap(void volatile __iomem *addr)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set new cache mode for some kernel address space.
|
||
|
|
* The caller must push data for that range itself, if such data may already
|
||
|
|
* be in the cache.
|
||
|
|
*/
|
||
|
|
void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
|
||
|
|
{
|
||
|
|
}
|