1 /* $NetBSD: sync_file.h,v 1.4 2021/12/19 10:45:49 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2018 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_SYNC_FILE_H_ 33 #define _LINUX_SYNC_FILE_H_ 34 35 #include <sys/mutex.h> 36 #include <sys/select.h> 37 38 #include <linux/dma-fence.h> 39 40 struct dma_fence; 41 struct file; 42 struct sync_file; 43 44 struct sync_file { 45 /* Linux API */ 46 struct file *file; 47 48 /* Private */ 49 struct dma_fence *sf_fence; 50 kmutex_t sf_lock; 51 struct selinfo sf_selq; 52 struct dma_fence_cb sf_fcb; 53 bool sf_polling; 54 bool sf_signalled; 55 }; 56 57 struct sync_file * 58 sync_file_create(struct dma_fence *, struct file *); 59 struct dma_fence * 60 sync_file_get_fence(int); 61 62 #endif /* _LINUX_SYNC_FILE_H_ */ 63