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swab.h
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1 #ifndef _SPARC_SWAB_H
2 #define _SPARC_SWAB_H
3 
4 #include <linux/types.h>
5 #include <asm/asi.h>
6 
7 #if defined(__sparc__) && defined(__arch64__)
8 static inline __u16 __arch_swab16p(const __u16 *addr)
9 {
10  __u16 ret;
11 
12  __asm__ __volatile__ ("lduha [%1] %2, %0"
13  : "=r" (ret)
14  : "r" (addr), "i" (ASI_PL));
15  return ret;
16 }
17 #define __arch_swab16p __arch_swab16p
18 
19 static inline __u32 __arch_swab32p(const __u32 *addr)
20 {
21  __u32 ret;
22 
23  __asm__ __volatile__ ("lduwa [%1] %2, %0"
24  : "=r" (ret)
25  : "r" (addr), "i" (ASI_PL));
26  return ret;
27 }
28 #define __arch_swab32p __arch_swab32p
29 
30 static inline __u64 __arch_swab64p(const __u64 *addr)
31 {
32  __u64 ret;
33 
34  __asm__ __volatile__ ("ldxa [%1] %2, %0"
35  : "=r" (ret)
36  : "r" (addr), "i" (ASI_PL));
37  return ret;
38 }
39 #define __arch_swab64p __arch_swab64p
40 
41 #else
42 #define __SWAB_64_THRU_32__
43 #endif /* defined(__sparc__) && defined(__arch64__) */
44 
45 #endif /* _SPARC_SWAB_H */