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-rw-r--r--arch/sh/include/uapi/asm/cachectl.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/sh/include/uapi/asm/cachectl.h b/arch/sh/include/uapi/asm/cachectl.h
new file mode 100644
index 000000000..79c566325
--- /dev/null
+++ b/arch/sh/include/uapi/asm/cachectl.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _SH_CACHECTL_H
+#define _SH_CACHECTL_H
+
+/* Definitions for the cacheflush system call. */
+
+#define CACHEFLUSH_D_INVAL 0x1 /* invalidate (without write back) */
+#define CACHEFLUSH_D_WB 0x2 /* write back (without invalidate) */
+#define CACHEFLUSH_D_PURGE 0x3 /* writeback and invalidate */
+
+#define CACHEFLUSH_I 0x4
+
+/*
+ * Options for cacheflush system call
+ */
+#define ICACHE CACHEFLUSH_I /* flush instruction cache */
+#define DCACHE CACHEFLUSH_D_PURGE /* writeback and flush data cache */
+#define BCACHE (ICACHE|DCACHE) /* flush both caches */
+
+#endif /* _SH_CACHECTL_H */