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