diff options
Diffstat (limited to 'include/asm-arm/byteorder.h')
-rw-r--r-- | include/asm-arm/byteorder.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/include/asm-arm/byteorder.h b/include/asm-arm/byteorder.h deleted file mode 100644 index e6f7fcdc73b0..000000000000 --- a/include/asm-arm/byteorder.h +++ /dev/null | |||
@@ -1,58 +0,0 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/byteorder.h | ||
3 | * | ||
4 | * ARM Endian-ness. In little endian mode, the data bus is connected such | ||
5 | * that byte accesses appear as: | ||
6 | * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 | ||
7 | * and word accesses (data or instruction) appear as: | ||
8 | * d0...d31 | ||
9 | * | ||
10 | * When in big endian mode, byte accesses appear as: | ||
11 | * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7 | ||
12 | * and word accesses (data or instruction) appear as: | ||
13 | * d0...d31 | ||
14 | */ | ||
15 | #ifndef __ASM_ARM_BYTEORDER_H | ||
16 | #define __ASM_ARM_BYTEORDER_H | ||
17 | |||
18 | #include <linux/compiler.h> | ||
19 | #include <asm/types.h> | ||
20 | |||
21 | static inline __attribute_const__ __u32 ___arch__swab32(__u32 x) | ||
22 | { | ||
23 | __u32 t; | ||
24 | |||
25 | #ifndef __thumb__ | ||
26 | if (!__builtin_constant_p(x)) { | ||
27 | /* | ||
28 | * The compiler needs a bit of a hint here to always do the | ||
29 | * right thing and not screw it up to different degrees | ||
30 | * depending on the gcc version. | ||
31 | */ | ||
32 | asm ("eor\t%0, %1, %1, ror #16" : "=r" (t) : "r" (x)); | ||
33 | } else | ||
34 | #endif | ||
35 | t = x ^ ((x << 16) | (x >> 16)); /* eor r1,r0,r0,ror #16 */ | ||
36 | |||
37 | x = (x << 24) | (x >> 8); /* mov r0,r0,ror #8 */ | ||
38 | t &= ~0x00FF0000; /* bic r1,r1,#0x00FF0000 */ | ||
39 | x ^= (t >> 8); /* eor r0,r0,r1,lsr #8 */ | ||
40 | |||
41 | return x; | ||
42 | } | ||
43 | |||
44 | #define __arch__swab32(x) ___arch__swab32(x) | ||
45 | |||
46 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | ||
47 | # define __BYTEORDER_HAS_U64__ | ||
48 | # define __SWAB_64_THRU_32__ | ||
49 | #endif | ||
50 | |||
51 | #ifdef __ARMEB__ | ||
52 | #include <linux/byteorder/big_endian.h> | ||
53 | #else | ||
54 | #include <linux/byteorder/little_endian.h> | ||
55 | #endif | ||
56 | |||
57 | #endif | ||
58 | |||