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

#ifndef _XE_PREEMPT_FENCE_TYPES_H_
#define _XE_PREEMPT_FENCE_TYPES_H_

#include <linux/dma-fence.h>
#include <linux/workqueue.h>

struct xe_exec_queue;

/**
 * struct xe_preempt_fence - Xe preempt fence
 *
 * hardware and triggers a callback once the xe_engine is complete.
 */
struct xe_preempt_fence {
        /** @base: dma fence base */
        struct dma_fence base;
        /** @link: link into list of pending preempt fences */
        struct list_head link;
        /** @q: exec queue for this preempt fence */
        struct xe_exec_queue *q;
        /** @preempt_work: work struct which issues preemption */
        struct work_struct preempt_work;
        /** @lock: dma-fence fence lock */
        spinlock_t lock;
        /** @error: preempt fence is in error state */
        int error;
};

#endif