1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/abi/gsc_pxp_commands_abi.h b/drivers/gpu/drm/xe/abi/gsc_pxp_commands_abi.h
new file mode 100644
index 000000000..57520809e
--- /dev/null
+++ b/drivers/gpu/drm/xe/abi/gsc_pxp_commands_abi.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _ABI_GSC_PXP_COMMANDS_ABI_H
+#define _ABI_GSC_PXP_COMMANDS_ABI_H
+
+#include <linux/types.h>
+
+/* Heci client ID for PXP commands */
+#define HECI_MEADDRESS_PXP 17
+
+#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_ERROR_API_VERSION = 0x1002,
+	PXP_STATUS_NOT_READY = 0x100e,
+	PXP_STATUS_PLATFCONFIG_KF1_NOVERIF = 0x101a,
+	PXP_STATUS_PLATFCONFIG_KF1_BAD = 0x101f,
+	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 */
+#define PXP_CMDHDR_EXTDATA_SESSION_VALID GENMASK(0, 0)
+#define PXP_CMDHDR_EXTDATA_APP_TYPE GENMASK(1, 1)
+#define PXP_CMDHDR_EXTDATA_SESSION_ID GENMASK(17, 2)
+	};
+	/* Length of the message (excluding the header) */
+	u32 buffer_len;
+} __packed;
+
+#define PXP43_CMDID_NEW_HUC_AUTH 0x0000003F /* MTL+ */
+
+/* PXP-Input-Packet: HUC Auth-only */
+struct pxp43_new_huc_auth_in {
+	struct pxp_cmd_header header;
+	u64 huc_base_address;
+	u32 huc_size;
+} __packed;
+
+/* PXP-Output-Packet: HUC Load and Authentication or Auth-only */
+struct pxp43_huc_auth_out {
+	struct pxp_cmd_header header;
+} __packed;
+
+#endif