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Greg Kroah-Hartman6f52b162017-11-01 15:08:43 +01001/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
Harvey Harrisonf4d2b142009-01-06 14:56:27 -08002#ifndef _SPARC_SWAB_H
3#define _SPARC_SWAB_H
4
5#include <linux/types.h>
6#include <asm/asi.h>
7
8#if defined(__sparc__) && defined(__arch64__)
9static inline __u16 __arch_swab16p(const __u16 *addr)
10{
11 __u16 ret;
12
David S. Miller5a2b59d2014-11-16 13:19:32 -080013 __asm__ __volatile__ ("lduha [%2] %3, %0"
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080014 : "=r" (ret)
David S. Miller5a2b59d2014-11-16 13:19:32 -080015 : "m" (*addr), "r" (addr), "i" (ASI_PL));
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080016 return ret;
17}
18#define __arch_swab16p __arch_swab16p
19
20static inline __u32 __arch_swab32p(const __u32 *addr)
21{
22 __u32 ret;
23
David S. Miller5a2b59d2014-11-16 13:19:32 -080024 __asm__ __volatile__ ("lduwa [%2] %3, %0"
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080025 : "=r" (ret)
David S. Miller5a2b59d2014-11-16 13:19:32 -080026 : "m" (*addr), "r" (addr), "i" (ASI_PL));
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080027 return ret;
28}
29#define __arch_swab32p __arch_swab32p
30
31static inline __u64 __arch_swab64p(const __u64 *addr)
32{
33 __u64 ret;
34
David S. Miller5a2b59d2014-11-16 13:19:32 -080035 __asm__ __volatile__ ("ldxa [%2] %3, %0"
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080036 : "=r" (ret)
David S. Miller5a2b59d2014-11-16 13:19:32 -080037 : "m" (*addr), "r" (addr), "i" (ASI_PL));
Harvey Harrisonf4d2b142009-01-06 14:56:27 -080038 return ret;
39}
40#define __arch_swab64p __arch_swab64p
41
42#else
43#define __SWAB_64_THRU_32__
44#endif /* defined(__sparc__) && defined(__arch64__) */
45
46#endif /* _SPARC_SWAB_H */