58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#ifndef __LINUX_CACHE_H
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#define __LINUX_CACHE_H
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#include <linux/kernel.h>
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#include <linux/config.h>
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#include <asm/cache.h>
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#ifndef L1_CACHE_ALIGN
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#define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES)
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#endif
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#ifndef SMP_CACHE_BYTES
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#define SMP_CACHE_BYTES L1_CACHE_BYTES
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#endif
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#if defined(CONFIG_X86) || defined(CONFIG_SPARC64)
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#define __read_mostly __attribute__((__section__(".data.read_mostly")))
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#else
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#define __read_mostly
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#endif
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#ifndef ____cacheline_aligned
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#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
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#endif
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#ifndef ____cacheline_aligned_in_smp
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#ifdef CONFIG_SMP
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#define ____cacheline_aligned_in_smp ____cacheline_aligned
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#else
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#define ____cacheline_aligned_in_smp
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#endif /* CONFIG_SMP */
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#endif
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#ifndef __cacheline_aligned
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#define __cacheline_aligned \
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__attribute__((__aligned__(SMP_CACHE_BYTES), \
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__section__(".data.cacheline_aligned")))
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#endif /* __cacheline_aligned */
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#ifndef __cacheline_aligned_in_smp
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#ifdef CONFIG_SMP
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#define __cacheline_aligned_in_smp __cacheline_aligned
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#else
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#define __cacheline_aligned_in_smp
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#endif /* CONFIG_SMP */
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#endif
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#if !defined(____cacheline_maxaligned_in_smp)
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#if defined(CONFIG_SMP)
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#define ____cacheline_maxaligned_in_smp \
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__attribute__((__aligned__(1 << (L1_CACHE_SHIFT_MAX))))
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#else
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#define ____cacheline_maxaligned_in_smp
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#endif
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#endif
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#endif /* __LINUX_CACHE_H */
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