]> git.karo-electronics.de Git - karo-tx-linux.git/blob - include/linux/virtio_byteorder.h
Merge branch 'linux-4.4' of https://github.com/skeggsb/linux into drm-fixes
[karo-tx-linux.git] / include / linux / virtio_byteorder.h
1 #ifndef _LINUX_VIRTIO_BYTEORDER_H
2 #define _LINUX_VIRTIO_BYTEORDER_H
3 #include <linux/types.h>
4 #include <uapi/linux/virtio_types.h>
5
6 static inline bool virtio_legacy_is_little_endian(void)
7 {
8 #ifdef __LITTLE_ENDIAN
9         return true;
10 #else
11         return false;
12 #endif
13 }
14
15 static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val)
16 {
17         if (little_endian)
18                 return le16_to_cpu((__force __le16)val);
19         else
20                 return be16_to_cpu((__force __be16)val);
21 }
22
23 static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val)
24 {
25         if (little_endian)
26                 return (__force __virtio16)cpu_to_le16(val);
27         else
28                 return (__force __virtio16)cpu_to_be16(val);
29 }
30
31 static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val)
32 {
33         if (little_endian)
34                 return le32_to_cpu((__force __le32)val);
35         else
36                 return be32_to_cpu((__force __be32)val);
37 }
38
39 static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val)
40 {
41         if (little_endian)
42                 return (__force __virtio32)cpu_to_le32(val);
43         else
44                 return (__force __virtio32)cpu_to_be32(val);
45 }
46
47 static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val)
48 {
49         if (little_endian)
50                 return le64_to_cpu((__force __le64)val);
51         else
52                 return be64_to_cpu((__force __be64)val);
53 }
54
55 static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val)
56 {
57         if (little_endian)
58                 return (__force __virtio64)cpu_to_le64(val);
59         else
60                 return (__force __virtio64)cpu_to_be64(val);
61 }
62
63 #endif /* _LINUX_VIRTIO_BYTEORDER */