x86/vdso: Enable x86 to use common headers (abc22418) · Commits · 戴 / test

arch/x86/include/asm/processor.h

+1 −11

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ struct vm86;
		#include <asm/fpu/types.h>
		#include <asm/unwind_hints.h>
		#include <asm/vmxfeatures.h>
		#include <asm/vdso/processor.h>

		#include <linux/personality.h>
		#include <linux/cache.h>
		@@ -677,17 +678,6 @@ static inline unsigned int cpuid_edx(unsigned int op)
		return edx;
		}

		/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
		static __always_inline void rep_nop(void)
		{
		asm volatile("rep; nop" ::: "memory");
		}

		static __always_inline void cpu_relax(void)
		{
		rep_nop();
		}

		/*
		* This function forces the icache and prefetched instruction stream to
		* catch up with reality in two very specific cases:

0 → 100644

+23 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0-only */
		/*
		* Copyright (C) 2020 ARM Ltd.
		*/
		#ifndef __ASM_VDSO_PROCESSOR_H
		#define __ASM_VDSO_PROCESSOR_H

		#ifndef __ASSEMBLY__

		/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
		static __always_inline void rep_nop(void)
		{
		asm volatile("rep; nop" ::: "memory");
		}

		static __always_inline void cpu_relax(void)
		{
		rep_nop();
		}

		#endif /* __ASSEMBLY__ */

		#endif /* __ASM_VDSO_PROCESSOR_H */