linux/include/vdso/cache.h
Thomas Weißschuh 0704bf4396 vdso: Introduce vdso/cache.h
The vDSO implementation can only include headers from the vdso/
namespace. To enable the usage of ____cacheline_aligned from
the vDSO, move it and its dependencies into a new header vdso/cache.h.
Keep compatibility by including vdso/cache.h from linux/cache.h.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-1-c1b5c69a166f@linutronix.de
2025-03-08 14:37:39 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __VDSO_CACHE_H
#define __VDSO_CACHE_H
#include <asm/cache.h>
#ifndef SMP_CACHE_BYTES
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif
#ifndef ____cacheline_aligned
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
#endif
#endif /* __VDSO_ALIGN_H */