[linux-2.6-block.git] / arch / microblaze / include / asm / current.h

/*
 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.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
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#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
 */
register struct task_struct *current asm("r31");

# define get_current()	current
# endif /* __ASSEMBLY__ */

#endif /* _ASM_MICROBLAZE_CURRENT_H */
Commit	Line	Data
4115ac83	1	/*
23cfc369 MS	2	* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
23cfc369 MS	3	* Copyright (C) 2008-2009 PetaLogix
4115ac83 MS	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
23cfc369 MS	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
4115ac83 MS	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 */