linux-brain/arch/arc/include/asm/switch_to.h
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

48 lines
1.0 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*/
#ifndef _ASM_ARC_SWITCH_TO_H
#define _ASM_ARC_SWITCH_TO_H
#ifndef __ASSEMBLY__
#include <linux/sched.h>
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
extern void fpu_save_restore(struct task_struct *p, struct task_struct *n);
#define ARC_FPU_PREV(p, n) fpu_save_restore(p, n)
#define ARC_FPU_NEXT(t)
#else
#define ARC_FPU_PREV(p, n)
#define ARC_FPU_NEXT(n)
#endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */
#ifdef CONFIG_ARC_PLAT_EZNPS
extern void dp_save_restore(struct task_struct *p, struct task_struct *n);
#define ARC_EZNPS_DP_PREV(p, n) dp_save_restore(p, n)
#else
#define ARC_EZNPS_DP_PREV(p, n)
#endif /* !CONFIG_ARC_PLAT_EZNPS */
struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
#define switch_to(prev, next, last) \
do { \
ARC_EZNPS_DP_PREV(prev, next); \
ARC_FPU_PREV(prev, next); \
last = __switch_to(prev, next);\
ARC_FPU_NEXT(next); \
mb(); \
} while (0)
#endif
#endif