arch/sparc/mm/loadmmu.c

   1 /* $Id: loadmmu.c,v 1.56 2000/02/08 20:24:21 davem Exp $
   2  * loadmmu.c:  This code loads up all the mm function pointers once the
   3  *             machine type has been determined.  It also sets the static
   4  *             mmu values such as PAGE_NONE, etc.
   5  *
   6  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   7  * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
   8  */
   9
  10 #include <linux/kernel.h>
  11 #include <linux/mm.h>
  12 #include <linux/init.h>
  13
  14 #include <asm/system.h>
  15 #include <asm/page.h>
  16 #include <asm/pgtable.h>
  17 #include <asm/a.out.h>
  18 #include <asm/mmu_context.h>
  19 #include <asm/oplib.h>
  20
  21 struct ctx_list *ctx_list_pool;
  22 struct ctx_list ctx_free;
  23 struct ctx_list ctx_used;
  24
  25 unsigned int pg_iobits;
  26
  27 extern void ld_mmu_sun4c(void);
  28 extern void ld_mmu_srmmu(void);
  29
  30 void __init load_mmu(void)
  31 {
  32         switch(sparc_cpu_model) {
  33         case sun4c:
  34         case sun4:
  35                 ld_mmu_sun4c();
  36                 break;
  37         case sun4m:
  38         case sun4d:
  39                 ld_mmu_srmmu();
  40                 break;
  41         default:
  42                 prom_printf("load_mmu: %d unsupported\n", (int)sparc_cpu_model);
  43                 prom_halt();
  44         }
  45         btfixup();
  46 }