arch/m68knommu/mm/kmap.c

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