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/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  */
  27 void *__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  */
  35 void 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  */
  44 void __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  */
  53 void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
  54 {
  55 }