arch/frv/mm/kmap.c

   1 /* kmap.c: ioremapping handlers
   2  *
   3  * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  * - Derived from arch/m68k/mm/kmap.c
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version
  10  * 2 of the License, or (at your option) any later version.
  11  */
  12
  13 #include <linux/mm.h>
  14 #include <linux/kernel.h>
  15 #include <linux/string.h>
  16 #include <linux/types.h>
  17 #include <linux/vmalloc.h>
  18
  19 #include <asm/setup.h>
  20 #include <asm/segment.h>
  21 #include <asm/page.h>
  22 #include <asm/pgalloc.h>
  23 #include <asm/io.h>
  24 #include <asm/system.h>
  25
  26 #undef DEBUG
  27
  28 /*****************************************************************************/
  29 /*
  30  * Map some physical address range into the kernel address space.
  31  */
  32
  33 void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
  34 {
  35         return (void __iomem *)physaddr;
  36 }
  37
  38 /*
  39  * Unmap a ioremap()ed region again
  40  */
  41 void iounmap(void volatile __iomem *addr)
  42 {
  43 }
  44
  45 /*
  46  * Set new cache mode for some kernel address space.
  47  * The caller must push data for that range itself, if such data may already
  48  * be in the cache.
  49  */
  50 void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
  51 {
  52 }