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