| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | #ifndef _ASM_IA64_CACHE_H |
| 3 | #define _ASM_IA64_CACHE_H |
| 4 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Denys Vlasenko | 54cb27a | 2010-02-20 01:03:44 +0100 | [diff] [blame] | 28 | #define __read_mostly __attribute__((__section__(".data..read_mostly"))) |
| Kyle McMartin | 804f159 | 2006-03-23 03:00:16 -0800 | [diff] [blame] | 29 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #endif /* _ASM_IA64_CACHE_H */ |