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/*
* include/asm-v850/current.h -- Current task
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* 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.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CURRENT_H__
#define __V850_CURRENT_H__
#ifndef __ASSEMBLY__ /* <linux/thread_info.h> is not asm-safe. */
#include <linux/thread_info.h>
#endif
#include <asm/macrology.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/v850/kernel/entry.S to be sure. */
#define CURRENT_TASK_REGNUM 16
#define CURRENT_TASK macrology_paste (r, CURRENT_TASK_REGNUM)
#ifdef __ASSEMBLY__
/* Put a pointer to the current task structure into REG. */
#define GET_CURRENT_TASK(reg) \
GET_CURRENT_THREAD(reg); \
ld.w TI_TASK[reg], reg
#else /* !__ASSEMBLY__ */
/* A pointer to the current task. */
register struct task_struct *current \
__asm__ (macrology_stringify (CURRENT_TASK));
#endif /* __ASSEMBLY__ */
#endif /* _V850_CURRENT_H */
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