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 /* 7 * Low-level memory accessors for handling virtio in modern little endian and in 8 * compatibility native endian format. 9 */ 10 11 static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val) 12 { 13 if (little_endian) 14 return le16_to_cpu((__force __le16)val); 15 else 16 return (__force u16)val; 17 } 18 19 static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val) 20 { 21 if (little_endian) 22 return (__force __virtio16)cpu_to_le16(val); 23 else 24 return (__force __virtio16)val; 25 } 26 27 static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) 28 { 29 if (little_endian) 30 return le32_to_cpu((__force __le32)val); 31 else 32 return (__force u32)val; 33 } 34 35 static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) 36 { 37 if (little_endian) 38 return (__force __virtio32)cpu_to_le32(val); 39 else 40 return (__force __virtio32)val; 41 } 42 43 static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val) 44 { 45 if (little_endian) 46 return le64_to_cpu((__force __le64)val); 47 else 48 return (__force u64)val; 49 } 50 51 static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val) 52 { 53 if (little_endian) 54 return (__force __virtio64)cpu_to_le64(val); 55 else 56 return (__force __virtio64)val; 57 } 58 59 #endif /* _LINUX_VIRTIO_BYTEORDER */ 60