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TOMOYO Linux Cross Reference
Linux/arch/microblaze/include/asm/current.h

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  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 */
 30 

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