5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
39 lines
940 B
C
39 lines
940 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Based on arm/arm64/include/asm/current.h
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*
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* Copyright (C) 2016 ARM
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* Copyright (C) 2017 SiFive
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*/
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#ifndef _ASM_RISCV_CURRENT_H
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#define _ASM_RISCV_CURRENT_H
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#include <linux/bug.h>
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#include <linux/compiler.h>
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#ifndef __ASSEMBLY__
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struct task_struct;
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register struct task_struct *riscv_current_is_tp __asm__("tp");
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/*
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* This only works because "struct thread_info" is at offset 0 from "struct
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* task_struct". This constraint seems to be necessary on other architectures
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* as well, but __switch_to enforces it. We can't check TASK_TI here because
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* <asm/asm-offsets.h> includes this, and I can't get the definition of "struct
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* task_struct" here due to some header ordering problems.
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*/
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static __always_inline struct task_struct *get_current(void)
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{
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return riscv_current_is_tp;
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}
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#define current get_current()
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_RISCV_CURRENT_H */
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