xref: /OK3568_Linux_fs/kernel/drivers/dma-buf/dma-buf-sysfs-stats.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * DMA-BUF sysfs statistics.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * Copyright (C) 2021 Google LLC.
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #ifndef _DMA_BUF_SYSFS_STATS_H
9*4882a593Smuzhiyun #define _DMA_BUF_SYSFS_STATS_H
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun #ifdef CONFIG_DMABUF_SYSFS_STATS
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun int dma_buf_init_sysfs_statistics(void);
14*4882a593Smuzhiyun void dma_buf_uninit_sysfs_statistics(void);
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun int dma_buf_stats_setup(struct dma_buf *dmabuf);
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun void dma_buf_stats_teardown(struct dma_buf *dmabuf);
19*4882a593Smuzhiyun #else
20*4882a593Smuzhiyun 
dma_buf_init_sysfs_statistics(void)21*4882a593Smuzhiyun static inline int dma_buf_init_sysfs_statistics(void)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun 	return 0;
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun 
dma_buf_uninit_sysfs_statistics(void)26*4882a593Smuzhiyun static inline void dma_buf_uninit_sysfs_statistics(void) {}
27*4882a593Smuzhiyun 
dma_buf_stats_setup(struct dma_buf * dmabuf)28*4882a593Smuzhiyun static inline int dma_buf_stats_setup(struct dma_buf *dmabuf)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun 	return 0;
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun 
dma_buf_stats_teardown(struct dma_buf * dmabuf)33*4882a593Smuzhiyun static inline void dma_buf_stats_teardown(struct dma_buf *dmabuf) {}
34*4882a593Smuzhiyun #endif
35*4882a593Smuzhiyun #endif // _DMA_BUF_SYSFS_STATS_H
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