root/arch/arm64/include/asm/vdso/vsyscall.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_VDSO_VSYSCALL_H
#define __ASM_VDSO_VSYSCALL_H

#ifndef __ASSEMBLER__

#include <vdso/datapage.h>

#define VDSO_PRECISION_MASK     ~(0xFF00ULL<<48)


/*
 * Update the vDSO data page to keep in sync with kernel timekeeping.
 */
static __always_inline
void __arch_update_vdso_clock(struct vdso_clock *vc)
{
        vc->mask        = VDSO_PRECISION_MASK;
}
#define __arch_update_vdso_clock __arch_update_vdso_clock

/* The asm-generic header needs to be included after the definitions above */
#include <asm-generic/vdso/vsyscall.h>

#endif /* !__ASSEMBLER__ */

#endif /* __ASM_VDSO_VSYSCALL_H */