1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_UNALIGNED_H
3 #define __LINUX_UNALIGNED_H
4
5 /*
6 * This is the most generic implementation of unaligned accesses
7 * and should work almost anywhere.
8 */
9 #pragma GCC diagnostic push
10 #pragma GCC diagnostic ignored "-Wpacked"
11 #pragma GCC diagnostic ignored "-Wattributes"
12 #include <vdso/unaligned.h>
13
14 #define get_unaligned(ptr) __get_unaligned_t(typeof(*(ptr)), (ptr))
15 #define put_unaligned(val, ptr) __put_unaligned_t(typeof(*(ptr)), (val), (ptr))
16
17 static inline u16 get_unaligned_le16(const void *p)
18 {
19 return le16_to_cpu(__get_unaligned_t(__le16, p));
20 }
21
22 static inline u32 get_unaligned_le32(const void *p)
23 {
24 return le32_to_cpu(__get_unaligned_t(__le32, p));
25 }
26
27 static inline u64 get_unaligned_le64(const void *p)
28 {
29 return le64_to_cpu(__get_unaligned_t(__le64, p));
30 }
31
32 static inline void put_unaligned_le16(u16 val, void *p)
33 {
34 __put_unaligned_t(__le16, cpu_to_le16(val), p);
35 }
36
37 static inline void put_unaligned_le32(u32 val, void *p)
38 {
39 __put_unaligned_t(__le32, cpu_to_le32(val), p);
40 }
41
42 static inline void put_unaligned_le64(u64 val, void *p)
43 {
44 __put_unaligned_t(__le64, cpu_to_le64(val), p);
45 }
46
47 static inline u16 get_unaligned_be16(const void *p)
48 {
49 return be16_to_cpu(__get_unaligned_t(__be16, p));
50 }
51
52 static inline u32 get_unaligned_be32(const void *p)
53 {
54 return be32_to_cpu(__get_unaligned_t(__be32, p));
55 }
56
57 static inline u64 get_unaligned_be64(const void *p)
58 {
59 return be64_to_cpu(__get_unaligned_t(__be64, p));
60 }
61
62 static inline void put_unaligned_be16(u16 val, void *p)
63 {
64 __put_unaligned_t(__be16, cpu_to_be16(val), p);
65 }
66
67 static inline void put_unaligned_be32(u32 val, void *p)
68 {
69 __put_unaligned_t(__be32, cpu_to_be32(val), p);
70 }
71
72 static inline void put_unaligned_be64(u64 val, void *p)
73 {
74 __put_unaligned_t(__be64, cpu_to_be64(val), p);
75 }
76
77 static inline u32 __get_unaligned_be24(const u8 *p)
78 {
79 return p[0] << 16 | p[1] << 8 | p[2];
80 }
81
82 static inline u32 get_unaligned_be24(const void *p)
83 {
84 return __get_unaligned_be24(p);
85 }
86
87 static inline u32 __get_unaligned_le24(const u8 *p)
88 {
89 return p[0] | p[1] << 8 | p[2] << 16;
90 }
91
92 static inline u32 get_unaligned_le24(const void *p)
93 {
94 return __get_unaligned_le24(p);
95 }
96
97 static inline void __put_unaligned_be24(const u32 val, u8 *p)
98 {
99 *p++ = (val >> 16) & 0xff;
100 *p++ = (val >> 8) & 0xff;
101 *p++ = val & 0xff;
102 }
103
104 static inline void put_unaligned_be24(const u32 val, void *p)
105 {
106 __put_unaligned_be24(val, p);
107 }
108
109 static inline void __put_unaligned_le24(const u32 val, u8 *p)
110 {
111 *p++ = val & 0xff;
112 *p++ = (val >> 8) & 0xff;
113 *p++ = (val >> 16) & 0xff;
114 }
115
116 static inline void put_unaligned_le24(const u32 val, void *p)
117 {
118 __put_unaligned_le24(val, p);
119 }
120
121 static inline void __put_unaligned_be48(const u64 val, u8 *p)
122 {
123 *p++ = (val >> 40) & 0xff;
124 *p++ = (val >> 32) & 0xff;
125 *p++ = (val >> 24) & 0xff;
126 *p++ = (val >> 16) & 0xff;
127 *p++ = (val >> 8) & 0xff;
128 *p++ = val & 0xff;
129 }
130
131 static inline void put_unaligned_be48(const u64 val, void *p)
132 {
133 __put_unaligned_be48(val, p);
134 }
135
136 static inline u64 __get_unaligned_be48(const u8 *p)
137 {
138 return (u64)p[0] << 40 | (u64)p[1] << 32 | (u64)p[2] << 24 |
139 p[3] << 16 | p[4] << 8 | p[5];
140 }
141
142 static inline u64 get_unaligned_be48(const void *p)
143 {
144 return __get_unaligned_be48(p);
145 }
146 #pragma GCC diagnostic pop
147
148 #endif /* __LINUX_UNALIGNED_H */
149
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.