[PATCH 17/30] microblaze_mmu_v1: Add CURRENT_TASK for entry.S

monstr
2009-04-27T09:48:58Z

From: Michal Simek <monstr@monstr.eu>

Signed-off-by: Michal Simek <monstr@monstr.eu>
---
arch/microblaze/include/asm/current.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h
index 8375ea9..29303ed 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 <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
--
1.5.5.1