2005-04-16 16:20:36 -06:00
|
|
|
/*
|
|
|
|
|
* linux/include/asm-arm/mmu_context.h
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 1996 Russell King.
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
|
*
|
|
|
|
|
* Changelog:
|
|
|
|
|
* 27-06-1996 RMK Created
|
|
|
|
|
*/
|
|
|
|
|
#ifndef __ASM_ARM_MMU_CONTEXT_H
|
|
|
|
|
#define __ASM_ARM_MMU_CONTEXT_H
|
|
|
|
|
|
2007-05-02 11:27:14 -06:00
|
|
|
#include <asm-generic/mm_hooks.h>
|
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
#define init_new_context(tsk,mm) 0
|
|
|
|
|
#define destroy_context(mm) do { } while(0)
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This is called when "tsk" is about to enter lazy TLB mode.
|
|
|
|
|
*
|
|
|
|
|
* mm: describes the currently active mm context
|
|
|
|
|
* tsk: task which is entering lazy tlb
|
|
|
|
|
* cpu: cpu number which is entering lazy tlb
|
|
|
|
|
*
|
|
|
|
|
* tsk->mm will be NULL
|
|
|
|
|
*/
|
|
|
|
|
static inline void
|
|
|
|
|
enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This is the actual mm switch as far as the scheduler
|
|
|
|
|
* is concerned. No registers are touched.
|
|
|
|
|
*/
|
|
|
|
|
static inline void
|
|
|
|
|
switch_mm(struct mm_struct *prev, struct mm_struct *next,
|
|
|
|
|
struct task_struct *tsk)
|
|
|
|
|
{
|
|
|
|
|
cpu_switch_mm(next->pgd, next);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define deactivate_mm(tsk,mm) do { } while (0)
|
|
|
|
|
|
|
|
|
|
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
|
|
|
|
|
{
|
|
|
|
|
cpu_switch_mm(next->pgd, next);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
