arch/sparc/mm/nosrmmu.c

   1 /*
   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 #include <asm/sbus.h>
  13
  14 static char shouldnothappen[] __initdata = "SUN4 kernel can only run on SUN4\n";
  15
  16 enum mbus_module srmmu_modtype;
  17 void *srmmu_nocache_pool;
  18
  19 int vac_cache_size = 0;
  20
  21 static void __init should_not_happen(void)
  22 {
  23         prom_printf(shouldnothappen);
  24         prom_halt();
  25 }
  26
  27 void __init srmmu_frob_mem_map(unsigned long start_mem)
  28 {
  29         should_not_happen();
  30 }
  31
  32 unsigned long __init srmmu_paging_init(unsigned long start_mem, unsigned long end_mem)
  33 {
  34         should_not_happen();
  35         return 0;
  36 }
  37
  38 void __init ld_mmu_srmmu(void)
  39 {
  40         should_not_happen();
  41 }
  42
  43 void srmmu_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type, int rdonly)
  44 {
  45 }
  46
  47 void srmmu_unmapioaddr(unsigned long virt_addr)
  48 {
  49 }
  50
  51 __u32 iounit_map_dma_init(struct sbus_bus *sbus, int size)
  52 {
  53         return 0;
  54 }
  55
  56 __u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct sbus_bus *sbus)
  57 {
  58         return 0;
  59 }