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From 61d003be018fb5b874e6ffbf746684c53556c00e Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 1 Oct 2019 12:33:25 +0200
Subject: [PATCH 11/32] ivshmem: Add header file
Common defines and structures for the ivshmem device.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
include/linux/ivshmem.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 include/linux/ivshmem.h
diff --git a/include/linux/ivshmem.h b/include/linux/ivshmem.h
new file mode 100644
index 000000000000..bad8547f071b
--- /dev/null
+++ b/include/linux/ivshmem.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _LINUX_IVSHMEM_H
+#define _LINUX_IVSHMEM_H
+
+#include <linux/types.h>
+
+#define IVSHM_PROTO_UNDEFINED 0x0000
+#define IVSHM_PROTO_NET 0x0001
+#define IVSHM_PROTO_VIRTIO_FRONT 0x8000
+#define IVSHM_PROTO_VIRTIO_BACK 0xc000
+#define IVSHM_PROTO_VIRTIO_DEVID_MASK 0x7fff
+
+#define IVSHM_CFG_PRIV_CNTL 0x03
+# define IVSHM_PRIV_CNTL_ONESHOT_INT BIT(0)
+#define IVSHM_CFG_STATE_TAB_SZ 0x04
+#define IVSHM_CFG_RW_SECTION_SZ 0x08
+#define IVSHM_CFG_OUTPUT_SECTION_SZ 0x10
+#define IVSHM_CFG_ADDRESS 0x18
+
+struct ivshm_regs {
+ u32 id;
+ u32 max_peers;
+ u32 int_control;
+ u32 doorbell;
+ u32 state;
+};
+
+#define IVSHM_INT_ENABLE BIT(0)
+
+#endif /* _LINUX_IVSHMEM_H */
--
2.11.0
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