i386/linux/linux-2.3.21/arch/sparc/mm/nosrmmu.c

   1 /* $Id: nosrmmu.c,v 1.3 1999/08/31 06:54:35 davem Exp $
   2  * nosrmmu.c: This file is a bunch of dummies for sun4 compiles,
   3  *         so that it does not need srmmu and avoid ifdefs.
   4  *
   5  * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/mm.h>
  10 #include <linux/init.h>
  11 #include <asm/mbus.h>
  12
  13 static char shouldnothappen[] __initdata = "SUN4 kernel can only run on SUN4\n";
  14
  15 enum mbus_module srmmu_modtype;
  16
  17 static void __init should_not_happen(void)
  18 {
  19         prom_printf(shouldnothappen);
  20         prom_halt();
  21 }
  22
  23 void __init srmmu_frob_mem_map(unsigned long start_mem)
  24 {
  25         should_not_happen();
  26 }
  27
  28 unsigned long __init srmmu_paging_init(unsigned long start_mem, unsigned long end_mem)
  29 {
  30         should_not_happen();
  31         return 0;
  32 }
  33
  34 void __init ld_mmu_srmmu(void)
  35 {
  36         should_not_happen();
  37 }
  38
  39 void srmmu_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type, int rdonly)
  40 {
  41 }
  42
  43 void srmmu_unmapioaddr(unsigned long virt_addr)
  44 {
  45 }
  46
  47 void __init srmmu_end_memory(unsigned long memory_size, unsigned long *mem_end_p)
  48 {
  49         return 0;
  50 }
  51
  52 __u32 iounit_map_dma_init(struct linux_sbus *sbus, int size)
  53 {
  54         return 0;
  55 }
  56
  57 __u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct linux_sbus *sbus)
  58 {
  59         return 0;
  60 }