| Michal Simek | 4115ac8 | 2009-03-27 14:25:43 +0100 | [diff] [blame] | 1 | /* |
| Michal Simek | 23cfc36 | 2009-05-26 16:30:20 +0200 | [diff] [blame] | 2 | * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> |
| 3 | * Copyright (C) 2008-2009 PetaLogix |
| Michal Simek | 4115ac8 | 2009-03-27 14:25:43 +0100 | [diff] [blame] | 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 | |
| Michal Simek | 23cfc36 | 2009-05-26 16:30:20 +0200 | [diff] [blame] | 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 |
| Michal Simek | 4115ac8 | 2009-03-27 14:25:43 +0100 | [diff] [blame] | 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 */ |