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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ | |
2 | #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__) | |
9 | static inline __u16 __arch_swab16p(const __u16 *addr) | |
10 | { | |
11 | __u16 ret; | |
12 | ||
13 | __asm__ __volatile__ ("lduha [%2] %3, %0" | |
14 | : "=r" (ret) | |
15 | : "m" (*addr), "r" (addr), "i" (ASI_PL)); | |
16 | return ret; | |
17 | } | |
18 | #define __arch_swab16p __arch_swab16p | |
19 | ||
20 | static inline __u32 __arch_swab32p(const __u32 *addr) | |
21 | { | |
22 | __u32 ret; | |
23 | ||
24 | __asm__ __volatile__ ("lduwa [%2] %3, %0" | |
25 | : "=r" (ret) | |
26 | : "m" (*addr), "r" (addr), "i" (ASI_PL)); | |
27 | return ret; | |
28 | } | |
29 | #define __arch_swab32p __arch_swab32p | |
30 | ||
31 | static inline __u64 __arch_swab64p(const __u64 *addr) | |
32 | { | |
33 | __u64 ret; | |
34 | ||
35 | __asm__ __volatile__ ("ldxa [%2] %3, %0" | |
36 | : "=r" (ret) | |
37 | : "m" (*addr), "r" (addr), "i" (ASI_PL)); | |
38 | 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 */ |