| /* |
| * 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 */ |
