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62 lines
1.6 KiB
62 lines
1.6 KiB
/* |
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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/ktime.h> |
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#include <linux/list.h> |
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#include <linux/spinlock.h> |
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#include <linux/dma-fence.h> |
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#include <linux/dma-fence-array.h> |
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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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* @sync_file_list: membership in global file list |
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* @wq: wait queue for fence signaling |
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* @flags: flags for the sync_file |
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* @fence: fence with the fences in the sync_file |
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* @cb: fence callback information |
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* |
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* flags: |
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* POLL_ENABLED: whether userspace is currently poll()'ing or not |
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*/ |
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struct sync_file { |
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struct file *file; |
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/** |
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* @user_name: |
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* |
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* Name of the sync file provided by userspace, for merged fences. |
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* Otherwise generated through driver callbacks (in which case the |
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* entire array is 0). |
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*/ |
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char user_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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wait_queue_head_t wq; |
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unsigned long flags; |
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struct dma_fence *fence; |
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struct dma_fence_cb cb; |
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}; |
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#define POLL_ENABLED 0 |
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struct sync_file *sync_file_create(struct dma_fence *fence); |
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struct dma_fence *sync_file_get_fence(int fd); |
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char *sync_file_get_name(struct sync_file *sync_file, char *buf, int len); |
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#endif /* _LINUX_SYNC_H */
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