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authorLinus Torvalds <torvalds@athlon.transmeta.com>2002-02-04 17:40:40 -0800
committerLinus Torvalds <torvalds@athlon.transmeta.com>2002-02-04 17:40:40 -0800
commit7a2deb32924142696b8174cdf9b38cd72a11fc96 (patch)
tree8ecc18f81fdb849254f39dc2e9fd77253319e1ec /include/linux/cache.h
Import changeset
Diffstat (limited to 'include/linux/cache.h')
-rw-r--r--include/linux/cache.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/cache.h b/include/linux/cache.h
new file mode 100644
index 000000000000..2030eb72bd36
--- /dev/null
+++ b/include/linux/cache.h
@@ -0,0 +1,28 @@
+#ifndef __LINUX_CACHE_H
+#define __LINUX_CACHE_H
+
+#include <asm/cache.h>
+
+#ifndef L1_CACHE_ALIGN
+#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
+#endif
+
+#ifndef SMP_CACHE_BYTES
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#endif
+
+#ifndef ____cacheline_aligned
+#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
+#endif
+
+#ifndef __cacheline_aligned
+#ifdef MODULE
+#define __cacheline_aligned ____cacheline_aligned
+#else
+#define __cacheline_aligned \
+ __attribute__((__aligned__(SMP_CACHE_BYTES), \
+ __section__(".data.cacheline_aligned")))
+#endif
+#endif /* __cacheline_aligned */
+
+#endif /* __LINUX_CACHE_H */