Cregit: Linux 6.8: cacheline.h

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Feng Tang	38	38.00%	1	9.09%
Arnaldo Carvalho de Melo	24	24.00%	4	36.36%
Jiri Olsa	19	19.00%	2	18.18%
Don Zickus	16	16.00%	2	18.18%
Ingo Molnar	2	2.00%	1	9.09%
Greg Kroah-Hartman	1	1.00%	1	9.09%
Total	100		11

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef PERF_CACHELINE_H
#define PERF_CACHELINE_H

#include <linux/compiler.h>

int __pure cacheline_size(void);


/*
 * Some architectures have 'Adjacent Cacheline Prefetch' feature,
 * which performs like the cacheline size being doubled.
 */
static inline u64 cl_address(u64 address, bool double_cl)
{
	u64 size = cacheline_size();

	if (double_cl)
		size *= 2;

	/* return the cacheline of the address */
	return (address & ~(size - 1));
}

static inline u64 cl_offset(u64 address, bool double_cl)
{
	u64 size = cacheline_size();

	if (double_cl)
		size *= 2;

	/* return the offset inside cacheline */
	return (address & (size - 1));
}

#endif // PERF_CACHELINE_H