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-rw-r--r--include/asm-mips/cachectl.h24
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diff --git a/include/asm-mips/cachectl.h b/include/asm-mips/cachectl.h
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+/*
+ * cachectl.h -- defines for MIPS cache control system calls
+ *
+ * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
+ */
+#ifndef __ASM_MIPS_CACHECTL
+#define __ASM_MIPS_CACHECTL
+
+/*
+ * Options for cacheflush system call
+ */
+#define ICACHE (1<<0) /* flush instruction cache */
+#define DCACHE (1<<1) /* writeback and flush data cache */
+#define BCACHE (ICACHE|DCACHE) /* flush both caches */
+
+/*
+ * Caching modes for the cachectl(2) call
+ *
+ * cachectl(2) is currently not supported and returns ENOSYS.
+ */
+#define CACHEABLE 0 /* make pages cacheable */
+#define UNCACHEABLE 1 /* make pages uncacheable */
+
+#endif /* __ASM_MIPS_CACHECTL */