projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| eef960a0 MT |
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 | ||
| 7d824109 GK |
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 | } | |
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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 | |
| 7d824109 | 20 | return be16_to_cpu((__force __be16)val); |
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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 | |
| 7d824109 | 28 | return (__force __virtio16)cpu_to_be16(val); |
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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 | |
| 7d824109 | 36 | return be32_to_cpu((__force __be32)val); |
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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 | |
| 7d824109 | 44 | return (__force __virtio32)cpu_to_be32(val); |
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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 | |
| 7d824109 | 52 | return be64_to_cpu((__force __be64)val); |
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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 | |
| 7d824109 | 60 | return (__force __virtio64)cpu_to_be64(val); |
| eef960a0 MT |
61 | } |
| 62 | ||
| 63 | #endif /* _LINUX_VIRTIO_BYTEORDER */ |