include/asm-nios2nommu/mmu_context.h

   1 /*
   2  *
   3  * Taken from the m68knommu.
   4  *
   5  * Copyright (C) 2004, Microtronix Datacom Ltd.
   6  *
   7  * All rights reserved.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  17  * NON INFRINGEMENT.  See the GNU General Public License for more
  18  * details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  */
  25
  26 #ifndef __NIOS2NOMMU_MMU_CONTEXT_H
  27 #define __NIOS2NOMMU_MMU_CONTEXT_H
  28
  29 #include <asm/setup.h>
  30 #include <asm/page.h>
  31 #include <asm/pgalloc.h>
  32
  33 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
  34 {
  35 }
  36
  37 extern inline int
  38 init_new_context(struct task_struct *tsk, struct mm_struct *mm)
  39 {
  40         // mm->context = virt_to_phys(mm->pgd);
  41         return(0);
  42 }
  43
  44 #define destroy_context(mm)             do { } while(0)
  45
  46 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
  47 {
  48 }
  49
  50 #define deactivate_mm(tsk,mm)   do { } while (0)
  51
  52 extern inline void activate_mm(struct mm_struct *prev_mm,
  53                                struct mm_struct *next_mm)
  54 {
  55 }
  56
  57 #endif