From 23cfc369337fa106d08cbed0dc86527c67966ff2 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 26 May 2009 16:30:20 +0200 Subject: microblaze_mmu_v2: Add CURRENT_TASK for entry.S Signed-off-by: Michal Simek --- arch/microblaze/include/asm/current.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch') diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h index 8375ea991e2..29303ed825c 100644 --- a/arch/microblaze/include/asm/current.h +++ b/arch/microblaze/include/asm/current.h @@ -1,4 +1,6 @@ /* + * Copyright (C) 2008-2009 Michal Simek + * 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 -- cgit v1.2.3