LXR linux/arch/openrisc/include/asm/mmu

   1/*
   2 * OpenRISC Linux
   3 *
   4 * Linux architectural port borrowing liberally from similar works of
   5 * others.  All original copyrights apply as per the original source
   6 * declaration.
   7 *
   8 * OpenRISC implementation:
   9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
  10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  11 * et al.
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License as published by
  15 * the Free Software Foundation; either version 2 of the License, or
  16 * (at your option) any later version.
  17 */
  18
  19#ifndef __ASM_OPENRISC_MMU_CONTEXT_H
  20#define __ASM_OPENRISC_MMU_CONTEXT_H
  21
  22#include <asm-generic/mm_hooks.h>
  23
  24extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
  25extern void destroy_context(struct mm_struct *mm);
  26extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
  27                      struct task_struct *tsk);
  28
  29#define deactivate_mm(tsk, mm)  do { } while (0)
  30
  31#define activate_mm(prev, next) switch_mm((prev), (next), NULL)
  32
  33/* current active pgd - this is similar to other processors pgd
  34 * registers like cr3 on the i386
  35 */
  36
  37extern volatile pgd_t *current_pgd;   /* defined in arch/openrisc/mm/fault.c */
  38
  39static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
  40{
  41}
  42
  43#endif
  44