diff options
Diffstat (limited to 'arch/mn10300/include/asm/switch_to.h')
| -rw-r--r-- | arch/mn10300/include/asm/switch_to.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/mn10300/include/asm/switch_to.h b/arch/mn10300/include/asm/switch_to.h deleted file mode 100644 index 67e333aa7629..000000000000 --- a/arch/mn10300/include/asm/switch_to.h +++ /dev/null @@ -1,49 +0,0 @@ -/* MN10300 task switching definitions - * - * 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_SWITCH_TO_H -#define _ASM_SWITCH_TO_H - -#include <asm/barrier.h> - -struct task_struct; -struct thread_struct; - -#if defined(CONFIG_FPU) && !defined(CONFIG_LAZY_SAVE_FPU) -struct fpu_state_struct; -extern asmlinkage void fpu_save(struct fpu_state_struct *); -#define switch_fpu(prev, next) \ - do { \ - if ((prev)->thread.fpu_flags & THREAD_HAS_FPU) { \ - (prev)->thread.fpu_flags &= ~THREAD_HAS_FPU; \ - (prev)->thread.uregs->epsw &= ~EPSW_FE; \ - fpu_save(&(prev)->thread.fpu_state); \ - } \ - } while (0) -#else -#define switch_fpu(prev, next) do {} while (0) -#endif - -/* context switching is now performed out-of-line in switch_to.S */ -extern asmlinkage -struct task_struct *__switch_to(struct thread_struct *prev, - struct thread_struct *next, - struct task_struct *prev_task); - -#define switch_to(prev, next, last) \ -do { \ - switch_fpu(prev, next); \ - current->thread.wchan = (u_long) __builtin_return_address(0); \ - (last) = __switch_to(&(prev)->thread, &(next)->thread, (prev)); \ - mb(); \ - current->thread.wchan = 0; \ -} while (0) - -#endif /* _ASM_SWITCH_TO_H */ |