| /* |
| * 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 */ |
