diff options
Diffstat (limited to 'include/asm-parisc/byteorder.h')
-rw-r--r-- | include/asm-parisc/byteorder.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/include/asm-parisc/byteorder.h b/include/asm-parisc/byteorder.h deleted file mode 100644 index db148313de5d..000000000000 --- a/include/asm-parisc/byteorder.h +++ /dev/null | |||
@@ -1,82 +0,0 @@ | |||
1 | #ifndef _PARISC_BYTEORDER_H | ||
2 | #define _PARISC_BYTEORDER_H | ||
3 | |||
4 | #include <asm/types.h> | ||
5 | #include <linux/compiler.h> | ||
6 | |||
7 | #ifdef __GNUC__ | ||
8 | |||
9 | static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) | ||
10 | { | ||
11 | __asm__("dep %0, 15, 8, %0\n\t" /* deposit 00ab -> 0bab */ | ||
12 | "shd %%r0, %0, 8, %0" /* shift 000000ab -> 00ba */ | ||
13 | : "=r" (x) | ||
14 | : "0" (x)); | ||
15 | return x; | ||
16 | } | ||
17 | |||
18 | static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x) | ||
19 | { | ||
20 | __asm__("shd %0, %0, 8, %0\n\t" /* shift xabcxabc -> cxab */ | ||
21 | "dep %0, 15, 8, %0\n\t" /* deposit cxab -> cbab */ | ||
22 | "shd %%r0, %0, 8, %0" /* shift 0000cbab -> 0cba */ | ||
23 | : "=r" (x) | ||
24 | : "0" (x)); | ||
25 | return x; | ||
26 | } | ||
27 | |||
28 | static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) | ||
29 | { | ||
30 | unsigned int temp; | ||
31 | __asm__("shd %0, %0, 16, %1\n\t" /* shift abcdabcd -> cdab */ | ||
32 | "dep %1, 15, 8, %1\n\t" /* deposit cdab -> cbab */ | ||
33 | "shd %0, %1, 8, %0" /* shift abcdcbab -> dcba */ | ||
34 | : "=r" (x), "=&r" (temp) | ||
35 | : "0" (x)); | ||
36 | return x; | ||
37 | } | ||
38 | |||
39 | |||
40 | #if BITS_PER_LONG > 32 | ||
41 | /* | ||
42 | ** From "PA-RISC 2.0 Architecture", HP Professional Books. | ||
43 | ** See Appendix I page 8 , "Endian Byte Swapping". | ||
44 | ** | ||
45 | ** Pretty cool algorithm: (* == zero'd bits) | ||
46 | ** PERMH 01234567 -> 67452301 into %0 | ||
47 | ** HSHL 67452301 -> 7*5*3*1* into %1 | ||
48 | ** HSHR 67452301 -> *6*4*2*0 into %0 | ||
49 | ** OR %0 | %1 -> 76543210 into %0 (all done!) | ||
50 | */ | ||
51 | static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) { | ||
52 | __u64 temp; | ||
53 | __asm__("permh,3210 %0, %0\n\t" | ||
54 | "hshl %0, 8, %1\n\t" | ||
55 | "hshr,u %0, 8, %0\n\t" | ||
56 | "or %1, %0, %0" | ||
57 | : "=r" (x), "=&r" (temp) | ||
58 | : "0" (x)); | ||
59 | return x; | ||
60 | } | ||
61 | #define __arch__swab64(x) ___arch__swab64(x) | ||
62 | #define __BYTEORDER_HAS_U64__ | ||
63 | #elif !defined(__STRICT_ANSI__) | ||
64 | static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) | ||
65 | { | ||
66 | __u32 t1 = ___arch__swab32((__u32) x); | ||
67 | __u32 t2 = ___arch__swab32((__u32) (x >> 32)); | ||
68 | return (((__u64) t1 << 32) | t2); | ||
69 | } | ||
70 | #define __arch__swab64(x) ___arch__swab64(x) | ||
71 | #define __BYTEORDER_HAS_U64__ | ||
72 | #endif | ||
73 | |||
74 | #define __arch__swab16(x) ___arch__swab16(x) | ||
75 | #define __arch__swab24(x) ___arch__swab24(x) | ||
76 | #define __arch__swab32(x) ___arch__swab32(x) | ||
77 | |||
78 | #endif /* __GNUC__ */ | ||
79 | |||
80 | #include <linux/byteorder/big_endian.h> | ||
81 | |||
82 | #endif /* _PARISC_BYTEORDER_H */ | ||