1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/abi/gsc_proxy_commands_abi.h b/drivers/gpu/drm/xe/abi/gsc_proxy_commands_abi.h
new file mode 100644
index 000000000000..80bbf06a3eb8
--- /dev/null
+++ b/drivers/gpu/drm/xe/abi/gsc_proxy_commands_abi.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _ABI_GSC_PROXY_COMMANDS_ABI_H
+#define _ABI_GSC_PROXY_COMMANDS_ABI_H
+
+#include <linux/types.h>
+
+/* Heci client ID for proxy commands */
+#define HECI_MEADDRESS_PROXY 10
+
+/* FW-defined proxy header */
+struct xe_gsc_proxy_header {
+	/*
+	 * hdr:
+	 * Bits 0-7: type of the proxy message (see enum xe_gsc_proxy_type)
+	 * Bits 8-15: rsvd
+	 * Bits 16-31: length in bytes of the payload following the proxy header
+	 */
+	u32 hdr;
+#define GSC_PROXY_TYPE		 GENMASK(7, 0)
+#define GSC_PROXY_PAYLOAD_LENGTH GENMASK(31, 16)
+
+	u32 source;		/* Source of the Proxy message */
+	u32 destination;	/* Destination of the Proxy message */
+#define GSC_PROXY_ADDRESSING_KMD  0x10000
+#define GSC_PROXY_ADDRESSING_GSC  0x20000
+#define GSC_PROXY_ADDRESSING_CSME 0x30000
+
+	u32 status;		/* Command status */
+} __packed;
+
+/* FW-defined proxy types */
+enum xe_gsc_proxy_type {
+	GSC_PROXY_MSG_TYPE_PROXY_INVALID = 0,
+	GSC_PROXY_MSG_TYPE_PROXY_QUERY = 1,
+	GSC_PROXY_MSG_TYPE_PROXY_PAYLOAD = 2,
+	GSC_PROXY_MSG_TYPE_PROXY_END = 3,
+	GSC_PROXY_MSG_TYPE_PROXY_NOTIFICATION = 4,
+};
+
+#endif