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 __attribute__((__section__(".data..read_mostly")))
29
30 #endif /* _ASM_IA64_CACHE_H */