162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef _ASM_IA64_CACHE_H 362306a36Sopenharmony_ci#define _ASM_IA64_CACHE_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci/* 762306a36Sopenharmony_ci * Copyright (C) 1998-2000 Hewlett-Packard Co 862306a36Sopenharmony_ci * David Mosberger-Tang <davidm@hpl.hp.com> 962306a36Sopenharmony_ci */ 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci/* Bytes per L1 (data) cache line. */ 1262306a36Sopenharmony_ci#define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT 1362306a36Sopenharmony_ci#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci#ifdef CONFIG_SMP 1662306a36Sopenharmony_ci# define SMP_CACHE_SHIFT L1_CACHE_SHIFT 1762306a36Sopenharmony_ci# define SMP_CACHE_BYTES L1_CACHE_BYTES 1862306a36Sopenharmony_ci#else 1962306a36Sopenharmony_ci /* 2062306a36Sopenharmony_ci * The "aligned" directive can only _increase_ alignment, so this is 2162306a36Sopenharmony_ci * safe and provides an easy way to avoid wasting space on a 2262306a36Sopenharmony_ci * uni-processor: 2362306a36Sopenharmony_ci */ 2462306a36Sopenharmony_ci# define SMP_CACHE_SHIFT 3 2562306a36Sopenharmony_ci# define SMP_CACHE_BYTES (1 << 3) 2662306a36Sopenharmony_ci#endif 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci#define __read_mostly __section(".data..read_mostly") 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci#endif /* _ASM_IA64_CACHE_H */ 31