1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
new file mode 100644
index 000000000000..c2f23394f9b8
--- /dev/null
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright(c) 2022, Intel Corporation. All rights reserved.
+ */
+
+#ifndef __INTEL_PXP_FW_INTERFACE_CMN_H__
+#define __INTEL_PXP_FW_INTERFACE_CMN_H__
+
+#include <linux/types.h>
+
+#define PXP_APIVER(x, y) (((x) & 0xFFFF) << 16 | ((y) & 0xFFFF))
+
+/*
+ * there are a lot of status codes for PXP, but we only define the cross-API
+ * common ones that we actually can handle in the kernel driver. Other failure
+ * codes should be printed to error msg for debug.
+ */
+enum pxp_status {
+	PXP_STATUS_SUCCESS = 0x0,
+	PXP_STATUS_OP_NOT_PERMITTED = 0x4013
+};
+
+/* Common PXP FW message header */
+struct pxp_cmd_header {
+	u32 api_version;
+	u32 command_id;
+	union {
+		u32 status; /* out */
+		u32 stream_id; /* in */
+	};
+	/* Length of the message (excluding the header) */
+	u32 buffer_len;
+} __packed;
+
+#endif /* __INTEL_PXP_FW_INTERFACE_CMN_H__ */