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/*
* Based on arm/arm64/include/asm/current.h
*
* Copyright (C) 2016 ARM
* Copyright (C) 2017 SiFive
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __ASM_CURRENT_H
#define __ASM_CURRENT_H
#include <linux/bug.h>
#include <linux/compiler.h>
#ifndef __ASSEMBLY__
struct task_struct;
/*
* This only works because "struct thread_info" is at offset 0 from "struct
* task_struct". This constraint seems to be necessary on other architectures
* as well, but __switch_to enforces it. We can't check TASK_TI here because
* <asm/asm-offsets.h> includes this, and I can't get the definition of "struct
* task_struct" here due to some header ordering problems.
*/
static __always_inline struct task_struct *get_current(void)
{
register struct task_struct *tp __asm__("tp");
return tp;
}
#define current get_current()
#endif /* __ASSEMBLY__ */
#endif /* __ASM_CURRENT_H */
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