| /* | 
 |  *  Port on Texas Instruments TMS320C6x architecture | 
 |  * | 
 |  *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated | 
 |  *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) | 
 |  * | 
 |  *  This program is free software; you can redistribute it and/or modify | 
 |  *  it under the terms of the GNU General Public License version 2 as | 
 |  *  published by the Free Software Foundation. | 
 |  */ | 
 | #ifndef _ASM_C6X_SWITCH_TO_H | 
 | #define _ASM_C6X_SWITCH_TO_H | 
 |  | 
 | #include <linux/linkage.h> | 
 |  | 
 | #define prepare_to_switch()    do { } while (0) | 
 |  | 
 | struct task_struct; | 
 | struct thread_struct; | 
 | asmlinkage void *__switch_to(struct thread_struct *prev, | 
 | 			     struct thread_struct *next, | 
 | 			     struct task_struct *tsk); | 
 |  | 
 | #define switch_to(prev, next, last)				\ | 
 | 	do {							\ | 
 | 		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_C6X_SWITCH_TO_H */ |