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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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34d04f25a9
Commint 9d84fb27fa ("arm64: restore get_current() optimisation") has
removed read_sysreg() and asm/sysreg.h is redundant.
This patch removes asm/sysreg.h header file.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
29 lines
478 B
C
29 lines
478 B
C
#ifndef __ASM_CURRENT_H
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#define __ASM_CURRENT_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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/*
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* We don't use read_sysreg() as we want the compiler to cache the value where
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* possible.
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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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unsigned long sp_el0;
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asm ("mrs %0, sp_el0" : "=r" (sp_el0));
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return (struct task_struct *)sp_el0;
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}
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#define current get_current()
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_CURRENT_H */
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