1 files changed, 48 insertions, 0 deletions

diff --git a/include/linux/ashmem.h b/include/linux/ashmem.h
new file mode 100644
index 00000000000..1976b10ef93
--- /dev/null
+++ b/include/linux/ashmem.h
@@ -0,0 +1,48 @@
+/*
+ * include/linux/ashmem.h
+ *
+ * Copyright 2008 Google Inc.
+ * Author: Robert Love
+ *
+ * This file is dual licensed.  It may be redistributed and/or modified
+ * under the terms of the Apache 2.0 License OR version 2 of the GNU
+ * General Public License.
+ */
+
+#ifndef _LINUX_ASHMEM_H
+#define _LINUX_ASHMEM_H
+
+#include <linux/limits.h>
+#include <linux/ioctl.h>
+
+#define ASHMEM_NAME_LEN         256
+
+#define ASHMEM_NAME_DEF         "dev/ashmem"
+
+/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
+#define ASHMEM_NOT_PURGED       0
+#define ASHMEM_WAS_PURGED       1
+
+/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */
+#define ASHMEM_IS_UNPINNED      0
+#define ASHMEM_IS_PINNED        1
+
+struct ashmem_pin {
+        __u32 offset;   /* offset into region, in bytes, page-aligned */
+        __u32 len;      /* length forward from offset, in bytes, page-aligned */
+};
+
+#define __ASHMEMIOC             0x77
+
+#define ASHMEM_SET_NAME         _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
+#define ASHMEM_GET_NAME         _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
+#define ASHMEM_SET_SIZE         _IOW(__ASHMEMIOC, 3, size_t)
+#define ASHMEM_GET_SIZE         _IO(__ASHMEMIOC, 4)
+#define ASHMEM_SET_PROT_MASK    _IOW(__ASHMEMIOC, 5, unsigned long)
+#define ASHMEM_GET_PROT_MASK    _IO(__ASHMEMIOC, 6)
+#define ASHMEM_PIN              _IOW(__ASHMEMIOC, 7, struct ashmem_pin)
+#define ASHMEM_UNPIN            _IOW(__ASHMEMIOC, 8, struct ashmem_pin)
+#define ASHMEM_GET_PIN_STATUS   _IO(__ASHMEMIOC, 9)
+#define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10)
+
+#endif  /* _LINUX_ASHMEM_H */