162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef PERF_CACHELINE_H 362306a36Sopenharmony_ci#define PERF_CACHELINE_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#include <linux/compiler.h> 662306a36Sopenharmony_ci 762306a36Sopenharmony_ciint __pure cacheline_size(void); 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci/* 1162306a36Sopenharmony_ci * Some architectures have 'Adjacent Cacheline Prefetch' feature, 1262306a36Sopenharmony_ci * which performs like the cacheline size being doubled. 1362306a36Sopenharmony_ci */ 1462306a36Sopenharmony_cistatic inline u64 cl_address(u64 address, bool double_cl) 1562306a36Sopenharmony_ci{ 1662306a36Sopenharmony_ci u64 size = cacheline_size(); 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci if (double_cl) 1962306a36Sopenharmony_ci size *= 2; 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci /* return the cacheline of the address */ 2262306a36Sopenharmony_ci return (address & ~(size - 1)); 2362306a36Sopenharmony_ci} 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_cistatic inline u64 cl_offset(u64 address, bool double_cl) 2662306a36Sopenharmony_ci{ 2762306a36Sopenharmony_ci u64 size = cacheline_size(); 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci if (double_cl) 3062306a36Sopenharmony_ci size *= 2; 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci /* return the offset inside cacheline */ 3362306a36Sopenharmony_ci return (address & (size - 1)); 3462306a36Sopenharmony_ci} 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci#endif // PERF_CACHELINE_H 37