| /* | |
| * Copyright (C) 2000, 2001 Paolo Alberelli | |
| * Copyright (C) 2003 Paul Mundt | |
| * Copyright (C) 2004 Richard Curnow | |
| * | |
| * 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. | |
| */ | |
| #ifndef __ASM_SH_SWITCH_TO_64_H | |
| #define __ASM_SH_SWITCH_TO_64_H | |
| struct thread_struct; | |
| struct task_struct; | |
| /* | |
| * switch_to() should switch tasks to task nr n, first | |
| */ | |
| struct task_struct *sh64_switch_to(struct task_struct *prev, | |
| struct thread_struct *prev_thread, | |
| struct task_struct *next, | |
| struct thread_struct *next_thread); | |
| #define switch_to(prev,next,last) \ | |
| do { \ | |
| if (last_task_used_math != next) { \ | |
| struct pt_regs *regs = next->thread.uregs; \ | |
| if (regs) regs->sr |= SR_FD; \ | |
| } \ | |
| last = sh64_switch_to(prev, &prev->thread, next, \ | |
| &next->thread); \ | |
| } while (0) | |
| #endif /* __ASM_SH_SWITCH_TO_64_H */ |