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/*
* 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
#include <asm/bitops.h>
#include <asm/pgtable.h>
#include <asm/arch/memory.h>
#include <asm/proc-fns.h>
#define destroy_context(mm) do { } while(0)
#define init_new_context(tsk,mm) 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, unsigned cpu)
{
}
/*
* 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, unsigned int cpu)
{
if (prev != next) {
cpu_switch_mm(next->pgd, tsk);
clear_bit(cpu, &prev->cpu_vm_mask);
}
set_bit(cpu, &next->cpu_vm_mask);
}
#define activate_mm(prev, next) \
switch_mm((prev),(next),NULL,smp_processor_id())
#endif
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