1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_IA64_CACHE_H 3 #define _ASM_IA64_CACHE_H 4 5 6 /* 7 * Copyright (C) 1998-2000 Hewlett-Packard Co 8 * David Mosberger-Tang <davidm@hpl.hp.com> 9 */ 10 11 /* Bytes per L1 (data) cache line. */ 12 #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT 13 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) 14 15 #ifdef CONFIG_SMP 16 # define SMP_CACHE_SHIFT L1_CACHE_SHIFT 17 # define SMP_CACHE_BYTES L1_CACHE_BYTES 18 #else 19 /* 20 * The "aligned" directive can only _increase_ alignment, so this is 21 * safe and provides an easy way to avoid wasting space on a 22 * uni-processor: 23 */ 24 # define SMP_CACHE_SHIFT 3 25 # define SMP_CACHE_BYTES (1 << 3) 26 #endif 27 28 #define __read_mostly __section(".data..read_mostly") 29 30 #endif /* _ASM_IA64_CACHE_H */ 31