1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _LINUX_VIRTIO_BYTEORDER_H
3*4882a593Smuzhiyun #define _LINUX_VIRTIO_BYTEORDER_H
4*4882a593Smuzhiyun #include <linux/types.h>
5*4882a593Smuzhiyun #include <uapi/linux/virtio_types.h>
6*4882a593Smuzhiyun
virtio_legacy_is_little_endian(void)7*4882a593Smuzhiyun static inline bool virtio_legacy_is_little_endian(void)
8*4882a593Smuzhiyun {
9*4882a593Smuzhiyun #ifdef __LITTLE_ENDIAN
10*4882a593Smuzhiyun return true;
11*4882a593Smuzhiyun #else
12*4882a593Smuzhiyun return false;
13*4882a593Smuzhiyun #endif
14*4882a593Smuzhiyun }
15*4882a593Smuzhiyun
__virtio16_to_cpu(bool little_endian,__virtio16 val)16*4882a593Smuzhiyun static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun if (little_endian)
19*4882a593Smuzhiyun return le16_to_cpu((__force __le16)val);
20*4882a593Smuzhiyun else
21*4882a593Smuzhiyun return be16_to_cpu((__force __be16)val);
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun
__cpu_to_virtio16(bool little_endian,u16 val)24*4882a593Smuzhiyun static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun if (little_endian)
27*4882a593Smuzhiyun return (__force __virtio16)cpu_to_le16(val);
28*4882a593Smuzhiyun else
29*4882a593Smuzhiyun return (__force __virtio16)cpu_to_be16(val);
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
__virtio32_to_cpu(bool little_endian,__virtio32 val)32*4882a593Smuzhiyun static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun if (little_endian)
35*4882a593Smuzhiyun return le32_to_cpu((__force __le32)val);
36*4882a593Smuzhiyun else
37*4882a593Smuzhiyun return be32_to_cpu((__force __be32)val);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
__cpu_to_virtio32(bool little_endian,u32 val)40*4882a593Smuzhiyun static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun if (little_endian)
43*4882a593Smuzhiyun return (__force __virtio32)cpu_to_le32(val);
44*4882a593Smuzhiyun else
45*4882a593Smuzhiyun return (__force __virtio32)cpu_to_be32(val);
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun
__virtio64_to_cpu(bool little_endian,__virtio64 val)48*4882a593Smuzhiyun static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun if (little_endian)
51*4882a593Smuzhiyun return le64_to_cpu((__force __le64)val);
52*4882a593Smuzhiyun else
53*4882a593Smuzhiyun return be64_to_cpu((__force __be64)val);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
__cpu_to_virtio64(bool little_endian,u64 val)56*4882a593Smuzhiyun static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val)
57*4882a593Smuzhiyun {
58*4882a593Smuzhiyun if (little_endian)
59*4882a593Smuzhiyun return (__force __virtio64)cpu_to_le64(val);
60*4882a593Smuzhiyun else
61*4882a593Smuzhiyun return (__force __virtio64)cpu_to_be64(val);
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun #endif /* _LINUX_VIRTIO_BYTEORDER */
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