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swab.h
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1 /*
2  * Copyright (C) 2011 Texas Instruments Incorporated
3  * Author: Mark Salter <[email protected]>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  */
9 #ifndef _ASM_C6X_SWAB_H
10 #define _ASM_C6X_SWAB_H
11 
12 static inline __attribute_const__ __u16 __c6x_swab16(__u16 val)
13 {
14  asm("swap4 .l1 %0,%0\n" : "+a"(val));
15  return val;
16 }
17 
18 static inline __attribute_const__ __u32 __c6x_swab32(__u32 val)
19 {
20  asm("swap4 .l1 %0,%0\n"
21  "swap2 .l1 %0,%0\n"
22  : "+a"(val));
23  return val;
24 }
25 
26 static inline __attribute_const__ __u64 __c6x_swab64(__u64 val)
27 {
28  asm(" swap2 .s1 %p0,%P0\n"
29  "|| swap2 .l1 %P0,%p0\n"
30  " swap4 .l1 %p0,%p0\n"
31  " swap4 .l1 %P0,%P0\n"
32  : "+a"(val));
33  return val;
34 }
35 
36 static inline __attribute_const__ __u32 __c6x_swahw32(__u32 val)
37 {
38  asm("swap2 .l1 %0,%0\n" : "+a"(val));
39  return val;
40 }
41 
42 static inline __attribute_const__ __u32 __c6x_swahb32(__u32 val)
43 {
44  asm("swap4 .l1 %0,%0\n" : "+a"(val));
45  return val;
46 }
47 
48 #define __arch_swab16 __c6x_swab16
49 #define __arch_swab32 __c6x_swab32
50 #define __arch_swab64 __c6x_swab64
51 #define __arch_swahw32 __c6x_swahw32
52 #define __arch_swahb32 __c6x_swahb32
53 
54 #endif /* _ASM_C6X_SWAB_H */