linux/arch/m32r/mm/ioremap-nommu.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

52 lines
1.3 KiB
C

/*
* linux/arch/m32r/mm/ioremap-nommu.c
*
* Copyright (c) 2001, 2002 Hiroyuki Kondo
*
* Taken from mips version.
* (C) Copyright 1995 1996 Linus Torvalds
* (C) Copyright 2001 Ralf Baechle
*/
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/
#include <linux/module.h>
#include <asm/addrspace.h>
#include <asm/byteorder.h>
#include <linux/vmalloc.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
/*
* Remap an arbitrary physical address space into the kernel virtual
* address space. Needed when the kernel wants to access high addresses
* directly.
*
* NOTE! We need to allow non-page-aligned mappings too: we will obviously
* have to convert them into an offset in a page-aligned mapping, but the
* caller shouldn't need to know that small detail.
*/
#define IS_LOW512(addr) (!((unsigned long)(addr) & ~0x1fffffffUL))
void __iomem *
__ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
{
return (void *)phys_addr;
}
#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1)
void iounmap(volatile void __iomem *addr)
{
}