linux/arch/m68knommu/mm/kmap.c
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   1/*
   2 *  linux/arch/m68knommu/mm/kmap.c
   3 *
   4 *  Copyright (C) 2000 Lineo, <davidm@snapgear.com>
   5 *  Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
   6 */
   7
   8#include <linux/mm.h>
   9#include <linux/kernel.h>
  10#include <linux/string.h>
  11#include <linux/types.h>
  12#include <linux/slab.h>
  13#include <linux/vmalloc.h>
  14
  15#include <asm/setup.h>
  16#include <asm/segment.h>
  17#include <asm/page.h>
  18#include <asm/pgalloc.h>
  19#include <asm/io.h>
  20#include <asm/system.h>
  21
  22#undef DEBUG
  23
  24/*
  25 * Map some physical address range into the kernel address space.
  26 */
  27void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
  28{
  29        return (void *)physaddr;
  30}
  31
  32/*
  33 * Unmap a ioremap()ed region again.
  34 */
  35void iounmap(void *addr)
  36{
  37}
  38
  39/*
  40 * __iounmap unmaps nearly everything, so be careful
  41 * it doesn't free currently pointer/page tables anymore but it
  42 * wans't used anyway and might be added later.
  43 */
  44void __iounmap(void *addr, unsigned long size)
  45{
  46}
  47
  48/*
  49 * Set new cache mode for some kernel address space.
  50 * The caller must push data for that range itself, if such data may already
  51 * be in the cache.
  52 */
  53void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
  54{
  55}
  56