/root/src/xen/xen/include/xen/byteorder/generic.h
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1 | | #ifndef __XEN_BYTEORDER_GENERIC_H__ |
2 | | #define __XEN_BYTEORDER_GENERIC_H__ |
3 | | |
4 | | /* |
5 | | * Generic Byte-reordering support |
6 | | * |
7 | | * The "... p" macros, like le64_to_cpup, can be used with pointers |
8 | | * to unaligned data, but there will be a performance penalty on |
9 | | * some architectures. Use get_unaligned for unaligned data. |
10 | | * |
11 | | * The following macros are to be defined by <asm/byteorder.h>: |
12 | | * |
13 | | * Conversion of XX-bit integers (16- 32- or 64-) |
14 | | * between native CPU format and little/big endian format |
15 | | * 64-bit stuff only defined for proper architectures |
16 | | * cpu_to_[bl]eXX(__uXX x) |
17 | | * [bl]eXX_to_cpu(__uXX x) |
18 | | * |
19 | | * The same, but takes a pointer to the value to convert |
20 | | * cpu_to_[bl]eXXp(__uXX x) |
21 | | * [bl]eXX_to_cpup(__uXX x) |
22 | | * |
23 | | * The same, but change in situ |
24 | | * cpu_to_[bl]eXXs(__uXX x) |
25 | | * [bl]eXX_to_cpus(__uXX x) |
26 | | * |
27 | | * See asm-foo/byteorder.h for examples of how to provide |
28 | | * architecture-optimized versions |
29 | | */ |
30 | | |
31 | | #define cpu_to_le64 __cpu_to_le64 |
32 | | #define le64_to_cpu __le64_to_cpu |
33 | | #define cpu_to_le32 __cpu_to_le32 |
34 | | #define le32_to_cpu __le32_to_cpu |
35 | 0 | #define cpu_to_le16 __cpu_to_le16 |
36 | | #define le16_to_cpu __le16_to_cpu |
37 | | #define cpu_to_be64 __cpu_to_be64 |
38 | | #define be64_to_cpu __be64_to_cpu |
39 | | #define cpu_to_be32 __cpu_to_be32 |
40 | | #define be32_to_cpu __be32_to_cpu |
41 | | #define cpu_to_be16 __cpu_to_be16 |
42 | | #define be16_to_cpu __be16_to_cpu |
43 | | #define cpu_to_le64p __cpu_to_le64p |
44 | | #define le64_to_cpup __le64_to_cpup |
45 | | #define cpu_to_le32p __cpu_to_le32p |
46 | | #define le32_to_cpup __le32_to_cpup |
47 | | #define cpu_to_le16p __cpu_to_le16p |
48 | | #define le16_to_cpup __le16_to_cpup |
49 | | #define cpu_to_be64p __cpu_to_be64p |
50 | | #define be64_to_cpup __be64_to_cpup |
51 | | #define cpu_to_be32p __cpu_to_be32p |
52 | | #define be32_to_cpup __be32_to_cpup |
53 | | #define cpu_to_be16p __cpu_to_be16p |
54 | | #define be16_to_cpup __be16_to_cpup |
55 | | #define cpu_to_le64s __cpu_to_le64s |
56 | | #define le64_to_cpus __le64_to_cpus |
57 | | #define cpu_to_le32s __cpu_to_le32s |
58 | | #define le32_to_cpus __le32_to_cpus |
59 | | #define cpu_to_le16s __cpu_to_le16s |
60 | | #define le16_to_cpus __le16_to_cpus |
61 | | #define cpu_to_be64s __cpu_to_be64s |
62 | | #define be64_to_cpus __be64_to_cpus |
63 | | #define cpu_to_be32s __cpu_to_be32s |
64 | | #define be32_to_cpus __be32_to_cpus |
65 | | #define cpu_to_be16s __cpu_to_be16s |
66 | | #define be16_to_cpus __be16_to_cpus |
67 | | |
68 | | #endif /* __XEN_BYTEORDER_GENERIC_H__ */ |