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TOMOYO Linux Cross Reference
Linux/arch/openrisc/include/asm/mmu_context.h

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  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 
 24 extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
 25 extern void destroy_context(struct mm_struct *mm);
 26 extern 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 
 37 extern volatile pgd_t *current_pgd;   /* defined in arch/openrisc/mm/fault.c */
 38 
 39 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 40 {
 41 }
 42 
 43 #endif
 44 

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