linux/drivers/gpu/drm/xe/xe_guc_ct_types.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2022 Intel Corporation
 */

#ifndef _XE_GUC_CT_TYPES_H_
#define _XE_GUC_CT_TYPES_H_

#include <linux/interrupt.h>
#include <linux/iosys-map.h>
#include <linux/spinlock_types.h>
#include <linux/wait.h>
#include <linux/xarray.h>

#include "abi/guc_communication_ctb_abi.h"

struct xe_bo;

/**
 * struct guc_ctb_info - GuC command transport buffer (CTB) info
 */
struct guc_ctb_info { … };

/**
 * struct guc_ctb - GuC command transport buffer (CTB)
 */
struct guc_ctb { … };

/**
 * struct guc_ctb_snapshot - GuC command transport buffer (CTB) snapshot
 */
struct guc_ctb_snapshot { … };

/**
 * struct xe_guc_ct_snapshot - GuC command transport (CT) snapshot
 */
struct xe_guc_ct_snapshot { … };

/**
 * enum xe_guc_ct_state - CT state
 * @XE_GUC_CT_STATE_NOT_INITIALIZED: CT not initialized, messages not expected in this state
 * @XE_GUC_CT_STATE_DISABLED: CT disabled, messages not expected in this state
 * @XE_GUC_CT_STATE_STOPPED: CT stopped, drop messages without errors
 * @XE_GUC_CT_STATE_ENABLED: CT enabled, messages sent / received in this state
 */
enum xe_guc_ct_state { … };

/**
 * struct xe_guc_ct - GuC command transport (CT) layer
 *
 * Includes a pair of CT buffers for bi-directional communication and tracking
 * for the H2G and G2H requests sent and received through the buffers.
 */
struct xe_guc_ct { … };

#endif