| /* | |
| * 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 */ |