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/* $NetBSD: dma-fence-array.h,v 1.6 2021/12/19 12:23:50 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUX_DMA_FENCE_ARRAY_H_
#define _LINUX_DMA_FENCE_ARRAY_H_
#include <sys/stdbool.h>
#include <linux/dma-fence.h>
#include <linux/irq_work.h>
#define dma_fence_array_create linux_dma_fence_array_create
#define dma_fence_is_array linux_dma_fence_is_array
#define to_dma_fence_array linux_to_dma_fence_array
struct dma_fence_array_cb {
struct dma_fence_array *dfac_array;
struct dma_fence_cb dfac_cb;
};
struct dma_fence_array {
struct dma_fence base;
struct dma_fence **fences;
unsigned num_fences;
spinlock_t dfa_lock;
int dfa_npending;
struct irq_work dfa_work;
struct dma_fence_array_cb dfa_cb[];
};
struct dma_fence_array *
dma_fence_array_create(int, struct dma_fence **, unsigned, unsigned,
bool);
bool dma_fence_is_array(struct dma_fence *);
struct dma_fence_array *
to_dma_fence_array(struct dma_fence *);
#endif /* _LINUX_DMA_FENCE_ARRAY_H_ */
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