1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_LINUX_DMABUF_UAPI_H_
#define UI_GFX_LINUX_DMABUF_UAPI_H_
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
#include <linux/dma-buf.h>
#else
#include <linux/types.h>
struct dma_buf_sync {
__u64 flags;
};
constexpr __u64 DMA_BUF_SYNC_READ = 1 << 0;
constexpr __u64 DMA_BUF_SYNC_WRITE = 2 << 0;
constexpr __u64 DMA_BUF_SYNC_RW = DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE;
constexpr __u64 DMA_BUF_SYNC_START = 0 << 2;
constexpr __u64 DMA_BUF_SYNC_END = 1 << 2;
constexpr char DMA_BUF_BASE = 'b';
constexpr unsigned long DMA_BUF_IOCTL_SYNC =
_IOW(DMA_BUF_BASE, 0, struct dma_buf_sync);
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 0, 0)
struct dma_buf_export_sync_file {
__u32 flags;
__s32 fd;
};
struct dma_buf_import_sync_file {
__u32 flags;
__s32 fd;
};
constexpr unsigned long DMA_BUF_IOCTL_EXPORT_SYNC_FILE =
_IOWR(DMA_BUF_BASE, 2, struct dma_buf_export_sync_file);
constexpr unsigned long DMA_BUF_IOCTL_IMPORT_SYNC_FILE =
_IOW(DMA_BUF_BASE, 3, struct dma_buf_import_sync_file);
#endif
#endif // UI_GFX_LINUX_DMABUF_UAPI_H_
|
