Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/uapi/sound/sof/abi.h b/include/uapi/sound/sof/abi.h
new file mode 100644
index 0000000..a0fe0d4
--- /dev/null
+++ b/include/uapi/sound/sof/abi.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2018 Intel Corporation. All rights reserved.
+ */
+
+/**
+ * SOF ABI versioning is based on Semantic Versioning where we have a given
+ * MAJOR.MINOR.PATCH version number. See https://semver.org/
+ *
+ * Rules for incrementing or changing version :-
+ *
+ * 1) Increment MAJOR version if you make incompatible API changes. MINOR and
+ * PATCH should be reset to 0.
+ *
+ * 2) Increment MINOR version if you add backwards compatible features or
+ * changes. PATCH should be reset to 0.
+ *
+ * 3) Increment PATCH version if you add backwards compatible bug fixes.
+ */
+
+#ifndef __INCLUDE_UAPI_SOUND_SOF_ABI_H__
+#define __INCLUDE_UAPI_SOUND_SOF_ABI_H__
+
+/* SOF ABI version major, minor and patch numbers */
+#define SOF_ABI_MAJOR 3
+#define SOF_ABI_MINOR 10
+#define SOF_ABI_PATCH 0
+
+/* SOF ABI version number. Format within 32bit word is MMmmmppp */
+#define SOF_ABI_MAJOR_SHIFT 24
+#define SOF_ABI_MAJOR_MASK 0xff
+#define SOF_ABI_MINOR_SHIFT 12
+#define SOF_ABI_MINOR_MASK 0xfff
+#define SOF_ABI_PATCH_SHIFT 0
+#define SOF_ABI_PATCH_MASK 0xfff
+
+#define SOF_ABI_VER(major, minor, patch) \
+ (((major) << SOF_ABI_MAJOR_SHIFT) | \
+ ((minor) << SOF_ABI_MINOR_SHIFT) | \
+ ((patch) << SOF_ABI_PATCH_SHIFT))
+
+#define SOF_ABI_VERSION_MAJOR(version) \
+ (((version) >> SOF_ABI_MAJOR_SHIFT) & SOF_ABI_MAJOR_MASK)
+#define SOF_ABI_VERSION_MINOR(version) \
+ (((version) >> SOF_ABI_MINOR_SHIFT) & SOF_ABI_MINOR_MASK)
+#define SOF_ABI_VERSION_PATCH(version) \
+ (((version) >> SOF_ABI_PATCH_SHIFT) & SOF_ABI_PATCH_MASK)
+
+#define SOF_ABI_VERSION_INCOMPATIBLE(sof_ver, client_ver) \
+ (SOF_ABI_VERSION_MAJOR((sof_ver)) != \
+ SOF_ABI_VERSION_MAJOR((client_ver)) \
+ )
+
+#define SOF_ABI_VERSION SOF_ABI_VER(SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH)
+
+/* SOF ABI magic number "SOF\0". */
+#define SOF_ABI_MAGIC 0x00464F53
+
+#endif