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path: root/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h
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Diffstat (limited to 'drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h')
-rw-r--r--drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h
index 36e9b0868f5c..7edc1760f142 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: MIT */
/*
- * Copyright(c) 2020, Intel Corporation. All rights reserved.
+ * Copyright(c) 2020-2022, Intel Corporation. All rights reserved.
*/
#ifndef __INTEL_PXP_TEE_INTERFACE_H__
@@ -9,8 +9,20 @@
#include <linux/types.h>
#define PXP_TEE_APIVER 0x40002
+#define PXP_TEE_43_APIVER 0x00040003
#define PXP_TEE_ARB_CMDID 0x1e
#define PXP_TEE_ARB_PROTECTION_MODE 0x2
+#define PXP_TEE_43_START_HUC_AUTH 0x0000003A
+
+/*
+ * there are a lot of status codes for PXP, but we only define the ones we
+ * actually can handle in the driver. other failure codes will be printed to
+ * error msg for debug.
+ */
+enum pxp_status {
+ PXP_STATUS_SUCCESS = 0x0,
+ PXP_STATUS_OP_NOT_PERMITTED = 0x4013
+};
/* PXP TEE message header */
struct pxp_tee_cmd_header {
@@ -33,4 +45,13 @@ struct pxp_tee_create_arb_out {
struct pxp_tee_cmd_header header;
} __packed;
+struct pxp_tee_start_huc_auth_in {
+ struct pxp_tee_cmd_header header;
+ __le64 huc_base_address;
+};
+
+struct pxp_tee_start_huc_auth_out {
+ struct pxp_tee_cmd_header header;
+};
+
#endif /* __INTEL_PXP_TEE_INTERFACE_H__ */