37 lines
708 B
C
37 lines
708 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef PERF_CACHELINE_H
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#define PERF_CACHELINE_H
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#include <linux/compiler.h>
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int __pure cacheline_size(void);
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/*
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* Some architectures have 'Adjacent Cacheline Prefetch' feature,
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* which performs like the cacheline size being doubled.
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*/
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static inline u64 cl_address(u64 address, bool double_cl)
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{
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u64 size = cacheline_size();
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if (double_cl)
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size *= 2;
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/* return the cacheline of the address */
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return (address & ~(size - 1));
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}
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static inline u64 cl_offset(u64 address, bool double_cl)
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{
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u64 size = cacheline_size();
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if (double_cl)
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size *= 2;
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/* return the offset inside cacheline */
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return (address & (size - 1));
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}
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#endif // PERF_CACHELINE_H
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