| /* |
| * 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/pgtable.h> |
| #include <asm/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); |
| } |
| |
| #define activate_mm(prev, next) \ |
| switch_mm((prev),(next),NULL,smp_processor_id()) |
| |
| #endif |
