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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Based on arm/arm64/include/asm/current.h
*
* Copyright (C) 2016 ARM
* Copyright (C) 2017 SiFive
*/
#ifndef _ASM_RISCV_CURRENT_H
#define _ASM_RISCV_CURRENT_H
#include <linux/bug.h>
#include <linux/compiler.h>
#ifndef __ASSEMBLY__
struct task_struct;
register struct task_struct *riscv_current_is_tp __asm__("tp");
/*
* 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)
{
return riscv_current_is_tp;
}
#define current get_current()
register unsigned long current_stack_pointer __asm__("sp");
#endif /* __ASSEMBLY__ */
#endif /* _ASM_RISCV_CURRENT_H */
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