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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | #ifndef _S390_BYTEORDER_H #define _S390_BYTEORDER_H /* * include/asm-s390/byteorder.h * * S390 version * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ #include <asm/types.h> #ifdef __GNUC__ #ifdef __s390x__ static __inline__ __u64 ___arch__swab64p(const __u64 *x) { __u64 result; __asm__ __volatile__ ( " lrvg %0,%1" : "=d" (result) : "m" (*x) ); return result; } static __inline__ __u64 ___arch__swab64(__u64 x) { __u64 result; __asm__ __volatile__ ( " lrvgr %0,%1" : "=d" (result) : "d" (x) ); return result; } static __inline__ void ___arch__swab64s(__u64 *x) { *x = ___arch__swab64p(x); } #endif /* __s390x__ */ static __inline__ __u32 ___arch__swab32p(const __u32 *x) { __u32 result; __asm__ __volatile__ ( #ifndef __s390x__ " icm %0,8,3(%1)\n" " icm %0,4,2(%1)\n" " icm %0,2,1(%1)\n" " ic %0,0(%1)" : "=&d" (result) : "a" (x), "m" (*x) : "cc" ); #else /* __s390x__ */ " lrv %0,%1" : "=d" (result) : "m" (*x) ); #endif /* __s390x__ */ return result; } static __inline__ __u32 ___arch__swab32(__u32 x) { #ifndef __s390x__ return ___arch__swab32p(&x); #else /* __s390x__ */ __u32 result; __asm__ __volatile__ ( " lrvr %0,%1" : "=d" (result) : "d" (x) ); return result; #endif /* __s390x__ */ } static __inline__ void ___arch__swab32s(__u32 *x) { *x = ___arch__swab32p(x); } static __inline__ __u16 ___arch__swab16p(const __u16 *x) { __u16 result; __asm__ __volatile__ ( #ifndef __s390x__ " icm %0,2,1(%1)\n" " ic %0,0(%1)\n" : "=&d" (result) : "a" (x), "m" (*x) : "cc" ); #else /* __s390x__ */ " lrvh %0,%1" : "=d" (result) : "m" (*x) ); #endif /* __s390x__ */ return result; } static __inline__ __u16 ___arch__swab16(__u16 x) { return ___arch__swab16p(&x); } static __inline__ void ___arch__swab16s(__u16 *x) { *x = ___arch__swab16p(x); } #ifdef __s390x__ #define __arch__swab64(x) ___arch__swab64(x) #define __arch__swab64p(x) ___arch__swab64p(x) #define __arch__swab64s(x) ___arch__swab64s(x) #endif /* __s390x__ */ #define __arch__swab32(x) ___arch__swab32(x) #define __arch__swab16(x) ___arch__swab16(x) #define __arch__swab32p(x) ___arch__swab32p(x) #define __arch__swab16p(x) ___arch__swab16p(x) #define __arch__swab32s(x) ___arch__swab32s(x) #define __arch__swab16s(x) ___arch__swab16s(x) #ifndef __s390x__ #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ # define __SWAB_64_THRU_32__ #endif #else /* __s390x__ */ #define __BYTEORDER_HAS_U64__ #endif /* __s390x__ */ #endif /* __GNUC__ */ #include <linux/byteorder/big_endian.h> #endif /* _S390_BYTEORDER_H */ |