58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
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/*
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* include/linux/sync_file.h
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*
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* Copyright (C) 2012 Google, Inc.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef _LINUX_SYNC_FILE_H
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#define _LINUX_SYNC_FILE_H
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#include <linux/types.h>
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#include <linux/kref.h>
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#include <linux/ktime.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/fence.h>
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struct sync_file_cb {
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struct fence_cb cb;
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struct fence *fence;
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struct sync_file *sync_file;
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};
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/**
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* struct sync_file - sync file to export to the userspace
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* @file: file representing this fence
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* @kref: reference count on fence.
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* @name: name of sync_file. Useful for debugging
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* @sync_file_list: membership in global file list
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* @num_fences: number of sync_pts in the fence
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* @wq: wait queue for fence signaling
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* @status: 0: signaled, >0:active, <0: error
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* @cbs: sync_pts callback information
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*/
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struct sync_file {
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struct file *file;
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struct kref kref;
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char name[32];
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#ifdef CONFIG_DEBUG_FS
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struct list_head sync_file_list;
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#endif
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int num_fences;
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wait_queue_head_t wq;
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atomic_t status;
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struct sync_file_cb cbs[];
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};
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struct sync_file *sync_file_create(struct fence *fence);
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#endif /* _LINUX_SYNC_H */
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