initial commit

1 files changed, 115 insertions, 0 deletions

diff --git a/epiphany_uapi.h b/epiphany_uapi.h
new file mode 100644
index 000000000000..7666e735190a
--- /dev/null
+++ b/epiphany_uapi.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2015 Adapteva Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called COPYING.
+ */
+
+#ifndef _UAPI_MISC_EPIPHANY_H
+#define _UAPI_MISC_EPIPHANY_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define E_MESH_MAX_ARRAYS	128
+#define E_LINK_MAX_MEM_MAPPINGS	256
+
+enum e_link_side {
+	E_SIDE_N = 0,
+	E_SIDE_E,
+	E_SIDE_S,
+	E_SIDE_W,
+	E_SIDE_MAX
+};
+
+enum e_connection_type {
+	E_CONN_DISCONNECTED = 0,
+	E_CONN_ELINK,
+	E_CONN_ARRAY,
+	E_CONN_MAX
+};
+
+enum e_chip_type {
+	E_CHIP_UNKNOWN = 0,
+	E_CHIP_E16G301,
+	E_CHIP_E64G401,
+	E_CHIP_MAX
+};
+
+struct e_mappings_info {
+	__u64 nmappings;
+	struct {
+		__u64 emesh_addr;
+		__u64 size;
+	} mappings[E_LINK_MAX_MEM_MAPPINGS];
+} __attribute__((packed));
+
+struct e_array_info {
+	__u64 id;
+	__u64 chip_type;
+	__u64 chip_rows;
+	__u64 chip_cols;
+	__u64 parent_side;
+	__u64 mesh_dev;
+	struct {
+		__u64 type;
+		union {
+			__u64 dev;
+			__u64 id;
+		};
+	} connections[E_SIDE_MAX];
+} __attribute__((packed));
+
+struct e_elink_info {
+	__u64 dev;
+	__u32 version;
+	__u32 _pad;
+	__u64 connection_type;
+	union {
+		struct e_array_info array;
+		__u64 remote_elink_id;
+	};
+} __attribute__((packed));
+
+struct e_mesh_info {
+	__u64 dev;
+	__u64 chip_type;
+	__u64 narrays;
+#if 1
+	struct e_array_info arrays[E_MESH_MAX_ARRAYS];
+#endif
+} __attribute__((packed));
+
+struct e_mailbox_msg {
+	__u32		from;
+	__u32		data;
+} __attribute__((packed));
+
+
+#define E_IOCTL_MAGIC  'E'
+#define E_IO(nr)		_IO(E_IOCTL_MAGIC, nr)
+#define E_IOR(nr, type)		_IOR(E_IOCTL_MAGIC, nr, type)
+#define E_IOW(nr, type)		_IOW(E_IOCTL_MAGIC, nr, type)
+#define E_IOWR(nr, type)	_IOWR(E_IOCTL_MAGIC, nr, type)
+
+/**
+ * If you add an IOC command, please update the
+ * EPIPHANY_IOC_MAXNR macro
+ */
+
+#define E_IOCTL_RESET			E_IO(0x00)
+#define E_IOCTL_ELINK_PROBE		E_IOR(0x01, struct e_elink_info)
+#define E_IOCTL_MESH_PROBE		E_IOR(0x02, struct e_mesh_info)
+#define E_IOCTL_GET_MAPPINGS		E_IOR(0x03, struct e_mappings_info)
+#define E_IOCTL_MAILBOX_READ		E_IOWR(0x04, struct e_mailbox_msg)
+#define E_IOCTL_MAILBOX_COUNT		E_IO(0x05)
+#define E_IOCTL_THERMAL_DISALLOW	E_IO(0x06)
+#define E_IOCTL_THERMAL_ALLOW		E_IO(0x07)
+
+#define E_IOCTL_MAXNR			0x07
+
+#endif /* _UAPI_MISC_EPIPHANY_H */