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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef __LINUX_CACHE_H |
| 2 | #define __LINUX_CACHE_H |
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| 3 | |||
| 4 | #include <linux/kernel.h> |
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| 5 | #include <linux/config.h> |
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| 6 | #include <asm/cache.h> |
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| 7 | |||
| 8 | #ifndef L1_CACHE_ALIGN |
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| 9 | #define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES) |
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| 10 | #endif |
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| 11 | |||
| 12 | #ifndef SMP_CACHE_BYTES |
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| 13 | #define SMP_CACHE_BYTES L1_CACHE_BYTES |
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| 14 | #endif |
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| 15 | |||
| 16 | #ifndef ____cacheline_aligned |
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| 17 | #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES))) |
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| 18 | #endif |
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| 19 | |||
| 20 | #ifndef ____cacheline_aligned_in_smp |
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| 21 | #ifdef CONFIG_SMP |
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| 22 | #define ____cacheline_aligned_in_smp ____cacheline_aligned |
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| 23 | #else |
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| 24 | #define ____cacheline_aligned_in_smp |
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| 25 | #endif /* CONFIG_SMP */ |
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| 26 | #endif |
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| 27 | |||
| 28 | #ifndef __cacheline_aligned |
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| 29 | #ifdef MODULE |
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| 30 | #define __cacheline_aligned ____cacheline_aligned |
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| 31 | #else |
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| 32 | #define __cacheline_aligned \ |
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| 33 | __attribute__((__aligned__(SMP_CACHE_BYTES), \ |
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| 34 | __section__(".data.cacheline_aligned"))) |
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| 35 | #endif |
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| 36 | #endif /* __cacheline_aligned */ |
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| 37 | |||
| 38 | #ifndef __cacheline_aligned_in_smp |
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| 39 | #ifdef CONFIG_SMP |
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| 40 | #define __cacheline_aligned_in_smp __cacheline_aligned |
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| 41 | #else |
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| 42 | #define __cacheline_aligned_in_smp |
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| 43 | #endif /* CONFIG_SMP */ |
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| 44 | #endif |
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| 45 | |||
| 46 | #if !defined(____cacheline_maxaligned_in_smp) |
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| 47 | #if defined(CONFIG_SMP) |
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| 48 | #define ____cacheline_maxaligned_in_smp \ |
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| 49 | __attribute__((__aligned__(1 << (L1_CACHE_SHIFT_MAX)))) |
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| 50 | #else |
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| 51 | #define ____cacheline_maxaligned_in_smp |
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| 52 | #endif |
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| 53 | #endif |
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| 54 | |||
| 55 | #endif /* __LINUX_CACHE_H */ |