| /* MN10300 Current task structure accessor |
| * |
| * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public Licence |
| * as published by the Free Software Foundation; either version |
| * 2 of the Licence, or (at your option) any later version. |
| */ |
| #ifndef _ASM_CURRENT_H |
| #define _ASM_CURRENT_H |
| |
| #include <linux/thread_info.h> |
| |
| /* |
| * dedicate E2 to keeping the current task pointer |
| */ |
| #ifdef CONFIG_MN10300_CURRENT_IN_E2 |
| |
| register struct task_struct *const current asm("e2") __attribute__((used)); |
| |
| #define get_current() current |
| |
| extern struct task_struct *__current; |
| |
| #else |
| static inline __attribute__((const)) |
| struct task_struct *get_current(void) |
| { |
| return current_thread_info()->task; |
| } |
| |
| #define current get_current() |
| #endif |
| |
| #endif /* _ASM_CURRENT_H */ |
