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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _ABI_GSC_COMMAND_HEADER_ABI_H
#define _ABI_GSC_COMMAND_HEADER_ABI_H
#include <linux/types.h>
struct intel_gsc_mtl_header {
u32 validity_marker;
#define GSC_HECI_VALIDITY_MARKER 0xA578875A
u8 heci_client_id;
u8 reserved1;
u16 header_version;
#define MTL_GSC_HEADER_VERSION 1
/* FW allows host to decide host_session handle as it sees fit. */
u64 host_session_handle;
/* handle generated by FW for messages that need to be re-submitted */
u64 gsc_message_handle;
u32 message_size; /* lower 20 bits only, upper 12 are reserved */
/*
* Flags mask:
* Bit 0: Pending
* Bit 1: Session Cleanup;
* Bits 2-15: Flags
* Bits 16-31: Extension Size
* According to internal spec flags are either input or output
* we distinguish the flags using OUTFLAG or INFLAG
*/
u32 flags;
#define GSC_OUTFLAG_MSG_PENDING BIT(0)
#define GSC_INFLAG_MSG_CLEANUP BIT(1)
u32 status;
} __packed;
#endif
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