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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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76164ca0d1
The upcoming auxiliary clocks need this hook, too. To separate the architecture hooks from the timekeeper internals, refactor the hook to only operate on a single vDSO clock. While at it, use a more robust #define for the hook override. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250701-vdso-auxclock-v1-3-df7d9f87b9b8@linutronix.de
28 lines
627 B
C
28 lines
627 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_VDSO_VSYSCALL_H
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#define __ASM_VDSO_VSYSCALL_H
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#ifndef __ASSEMBLY__
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#include <vdso/datapage.h>
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#define VDSO_PRECISION_MASK ~(0xFF00ULL<<48)
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/*
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* Update the vDSO data page to keep in sync with kernel timekeeping.
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*/
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static __always_inline
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void __arch_update_vdso_clock(struct vdso_clock *vc)
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{
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vc->mask = VDSO_PRECISION_MASK;
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}
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#define __arch_update_vdso_clock __arch_update_vdso_clock
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/* The asm-generic header needs to be included after the definitions above */
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#include <asm-generic/vdso/vsyscall.h>
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#endif /* !__ASSEMBLY__ */
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#endif /* __ASM_VDSO_VSYSCALL_H */
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