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Message-Id: <1243406874-3917-16-git-send-email-monstr@monstr.eu>
Date: Wed, 27 May 2009 08:47:40 +0200
From: Michal Simek <monstr@...str.eu>
To: linux-kernel@...r.kernel.org
Cc: john.williams@...alogix.com, microblaze-uclinux@...e.uq.edu.au,
michal.simek@...alogix.com, Michal Simek <monstr@...str.eu>
Subject: [PATCH 15/29] microblaze_mmu_v2: Add CURRENT_TASK for entry.S
Signed-off-by: Michal Simek <monstr@...str.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@...str.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
--
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