1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_fw_meta.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_fw_meta.h
new file mode 100644
index 000000000000..242ec257998c
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_fw_meta.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef _DMUB_META_H_
+#define _DMUB_META_H_
+
+#include "dmub_types.h"
+
+#pragma pack(push, 1)
+
+/* Magic value for identifying dmub_fw_meta_info */
+#define DMUB_FW_META_MAGIC 0x444D5542
+
+/* Offset from the end of the file to the dmub_fw_meta_info */
+#define DMUB_FW_META_OFFSET 0x24
+
+/**
+ * struct dmub_fw_meta_info - metadata associated with fw binary
+ *
+ * NOTE: This should be considered a stable API. Fields should
+ *       not be repurposed or reordered. New fields should be
+ *       added instead to extend the structure.
+ *
+ * @magic_value: magic value identifying DMUB firmware meta info
+ * @fw_region_size: size of the firmware state region
+ * @trace_buffer_size: size of the tracebuffer region
+ */
+struct dmub_fw_meta_info {
+	uint32_t magic_value;
+	uint32_t fw_region_size;
+	uint32_t trace_buffer_size;
+};
+
+/* Ensure that the structure remains 64 bytes. */
+union dmub_fw_meta {
+	struct dmub_fw_meta_info info;
+	uint8_t reserved[64];
+};
+
+#pragma pack(pop)
+
+#endif /* _DMUB_META_H_ */