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[ARM] Move mmu.c out of the way

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Rename mmu.c to context.c - it's the ARMv6 ASID context handling
code rather than generic "mmu" handling code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2006-08-21 19:23:38 +01:00
committed by Russell King
parent 1b2e2b73b4
commit d84b47115a
2 changed files with 2 additions and 2 deletions
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45
arch/arm/mm/mmu.c
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@@ -1,45 +0,0 @@
/*
* linux/arch/arm/mm/mmu.c
*
* Copyright (C) 2002-2003 Deep Blue Solutions Ltd, all rights reserved.
*
* 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.
*/
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/mmu_context.h>
#include <asm/tlbflush.h>
unsigned int cpu_last_asid = { 1 << ASID_BITS };
/*
* We fork()ed a process, and we need a new context for the child
* to run in. We reserve version 0 for initial tasks so we will
* always allocate an ASID.
*/
void __init_new_context(struct task_struct *tsk, struct mm_struct *mm)
{
mm->context.id = 0;
}
void __new_context(struct mm_struct *mm)
{
unsigned int asid;
asid = ++cpu_last_asid;
if (asid == 0)
asid = cpu_last_asid = 1 << ASID_BITS;
/*
* If we've used up all our ASIDs, we need
* to start a new version and flush the TLB.
*/
if ((asid & ~ASID_MASK) == 0)
flush_tlb_all();
mm->context.id = asid;
}