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-rw-r--r--include/asm-alpha/cache.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/asm-alpha/cache.h b/include/asm-alpha/cache.h
new file mode 100644
index 0000000..e69b295
--- /dev/null
+++ b/include/asm-alpha/cache.h
@@ -0,0 +1,25 @@
+/*
+ * include/asm-alpha/cache.h
+ */
+#ifndef __ARCH_ALPHA_CACHE_H
+#define __ARCH_ALPHA_CACHE_H
+
+#include <linux/config.h>
+
+/* Bytes per L1 (data) cache line. */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
+# define L1_CACHE_BYTES 64
+# define L1_CACHE_SHIFT 6
+#else
+/* Both EV4 and EV5 are write-through, read-allocate,
+ direct-mapped, physical.
+*/
+# define L1_CACHE_BYTES 32
+# define L1_CACHE_SHIFT 5
+#endif
+
+#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#define L1_CACHE_SHIFT_MAX L1_CACHE_SHIFT
+
+#endif
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