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microblaze_mmu_v2: Add CURRENT_TASK for entry.S 

Signed-off-by: Michal Simek <monstr@monstr.eu>
hifive-unleashed-5.1
Michal Simek 2009-05-26 16:30:20 +02:00
parent 627cef44f4
commit 23cfc36933
1 changed files with 8 additions and 0 deletions
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8
arch/microblaze/include/asm/current.h
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@ -1,4 +1,6 @@
/*
* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2008-2009 PetaLogix
* Copyright (C) 2006 Atmark Techno, Inc.
*
* This file is subject to the terms and conditions of the GNU General Public
@ -9,6 +11,12 @@
#ifndef _ASM_MICROBLAZE_CURRENT_H
#define _ASM_MICROBLAZE_CURRENT_H
/*
* Register used to hold the current task pointer while in the kernel.
* Any `call clobbered' register without a special meaning should be OK,
* but check asm/microblaze/kernel/entry.S to be sure.
*/
#define CURRENT_TASK r31
# ifndef __ASSEMBLY__
/*
* Dedicate r31 to keeping the current task pointer