home *** CD-ROM | disk | FTP | other *** search
- /*
- * 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 */
-