1 /*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11 #ifndef _ASM_MICROBLAZE_CURRENT_H
12 #define _ASM_MICROBLAZE_CURRENT_H
13
14 /*
15 * Register used to hold the current task pointer while in the kernel.
16 * Any `call clobbered' register without a special meaning should be OK,
17 * but check asm/microblaze/kernel/entry.S to be sure.
18 */
19 #define CURRENT_TASK r31
20 # ifndef __ASSEMBLY__
21 /*
22 * Dedicate r31 to keeping the current task pointer
23 */
24 register struct task_struct *current asm("r31");
25
26 # define get_current() current
27 # endif /* __ASSEMBLY__ */
28
29 #endif /* _ASM_MICROBLAZE_CURRENT_H */