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-rw-r--r--include/asm-xtensa/shmparam.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/asm-xtensa/shmparam.h b/include/asm-xtensa/shmparam.h
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+++ b/include/asm-xtensa/shmparam.h
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+/*
+ * include/asm-xtensa/shmparam.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _XTENSA_SHMPARAM_H
+#define _XTENSA_SHMPARAM_H
+
+#include <asm/processor.h>
+
+/*
+ * Xtensa can have variable size caches, and if
+ * the size of single way is larger than the page size,
+ * then we have to start worrying about cache aliasing
+ * problems.
+ */
+
+#define SHMLBA ((PAGE_SIZE > DCACHE_WAY_SIZE)? PAGE_SIZE : DCACHE_WAY_SIZE)
+
+#endif /* _XTENSA_SHMPARAM_H */