| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | #ifndef _ASM_IA64_CACHE_H |
| 2 | #define _ASM_IA64_CACHE_H |
| 3 | |
| 4 | #include <linux/config.h> |
| 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 | #define L1_CACHE_SHIFT_MAX 7 /* largest L1 which this arch supports */ |
| 16 | |
| 17 | #ifdef CONFIG_SMP |
| 18 | # define SMP_CACHE_SHIFT L1_CACHE_SHIFT |
| 19 | # define SMP_CACHE_BYTES L1_CACHE_BYTES |
| 20 | #else |
| 21 | /* |
| 22 | * The "aligned" directive can only _increase_ alignment, so this is |
| 23 | * safe and provides an easy way to avoid wasting space on a |
| 24 | * uni-processor: |
| 25 | */ |
| 26 | # define SMP_CACHE_SHIFT 3 |
| 27 | # define SMP_CACHE_BYTES (1 << 3) |
| 28 | #endif |
| 29 | |
| 30 | #endif /* _ASM_IA64_CACHE_H */ |