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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/asm-s390/byteorder.h
1 #ifndef _S390_BYTEORDER_H
2 #define _S390_BYTEORDER_H
5 * include/asm-s390/byteorder.h
8 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
9 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
12 #include <asm/types.h>
17 static __inline__ __u64
___arch__swab64p(const __u64
*x
)
21 __asm__
__volatile__ (
23 : "=d" (result
) : "m" (*x
) );
27 static __inline__ __u64
___arch__swab64(__u64 x
)
31 __asm__
__volatile__ (
33 : "=d" (result
) : "d" (x
) );
37 static __inline__
void ___arch__swab64s(__u64
*x
)
39 *x
= ___arch__swab64p(x
);
41 #endif /* __s390x__ */
43 static __inline__ __u32
___arch__swab32p(const __u32
*x
)
47 __asm__
__volatile__ (
53 : "=&d" (result
) : "a" (x
), "m" (*x
) : "cc" );
56 : "=d" (result
) : "m" (*x
) );
57 #endif /* __s390x__ */
61 static __inline__ __u32
___arch__swab32(__u32 x
)
64 return ___arch__swab32p(&x
);
68 __asm__
__volatile__ (
70 : "=d" (result
) : "d" (x
) );
72 #endif /* __s390x__ */
75 static __inline__
void ___arch__swab32s(__u32
*x
)
77 *x
= ___arch__swab32p(x
);
80 static __inline__ __u16
___arch__swab16p(const __u16
*x
)
84 __asm__
__volatile__ (
88 : "=&d" (result
) : "a" (x
), "m" (*x
) : "cc" );
91 : "=d" (result
) : "m" (*x
) );
92 #endif /* __s390x__ */
96 static __inline__ __u16
___arch__swab16(__u16 x
)
98 return ___arch__swab16p(&x
);
101 static __inline__
void ___arch__swab16s(__u16
*x
)
103 *x
= ___arch__swab16p(x
);
107 #define __arch__swab64(x) ___arch__swab64(x)
108 #define __arch__swab64p(x) ___arch__swab64p(x)
109 #define __arch__swab64s(x) ___arch__swab64s(x)
110 #endif /* __s390x__ */
111 #define __arch__swab32(x) ___arch__swab32(x)
112 #define __arch__swab16(x) ___arch__swab16(x)
113 #define __arch__swab32p(x) ___arch__swab32p(x)
114 #define __arch__swab16p(x) ___arch__swab16p(x)
115 #define __arch__swab32s(x) ___arch__swab32s(x)
116 #define __arch__swab16s(x) ___arch__swab16s(x)
119 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
120 # define __BYTEORDER_HAS_U64__
121 # define __SWAB_64_THRU_32__
123 #else /* __s390x__ */
124 #define __BYTEORDER_HAS_U64__
125 #endif /* __s390x__ */
127 #endif /* __GNUC__ */
129 #include <linux/byteorder/big_endian.h>
131 #endif /* _S390_BYTEORDER_H */