1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
4 * Copyright (C) 2008-2009 PetaLogix
5 * Copyright (C) 2006 Atmark Techno, Inc.
6 */
7
8 #ifndef _ASM_MICROBLAZE_CURRENT_H
9 #define _ASM_MICROBLAZE_CURRENT_H
10
11 /*
12 * Register used to hold the current task pointer while in the kernel.
13 * Any `call clobbered' register without a special meaning should be OK,
14 * but check asm/microblaze/kernel/entry.S to be sure.
15 */
16 #define CURRENT_TASK r31
17 # ifndef __ASSEMBLY__
18 /*
19 * Dedicate r31 to keeping the current task pointer
20 */
21 register struct task_struct *current asm("r31");
22
23 # define get_current() current
24 # endif /* __ASSEMBLY__ */
25
26 #endif /* _ASM_MICROBLAZE_CURRENT_H */
27
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