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| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
| #ifndef __ASM_SH_SWAB_H
| #define __ASM_SH_SWAB_H
|
| /*
| * Copyright (C) 1999 Niibe Yutaka
| * Copyright (C) 2000, 2001 Paolo Alberelli
| */
| #include <linux/compiler.h>
| #include <linux/types.h>
| #include <asm-generic/swab.h>
|
| static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
| {
| __asm__(
| #ifdef __SH5__
| "byterev %1, %0\n\t"
| "shari %0, 32, %0"
| #else
| "swap.b %1, %0\n\t"
| "swap.w %0, %0\n\t"
| "swap.b %0, %0"
| #endif
| : "=r" (x)
| : "r" (x));
|
| return x;
| }
| #define __arch_swab32 __arch_swab32
|
| static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
| {
| __asm__(
| #ifdef __SH5__
| "byterev %1, %0\n\t"
| "shari %0, 32, %0"
| #else
| "swap.b %1, %0"
| #endif
| : "=r" (x)
| : "r" (x));
|
| return x;
| }
| #define __arch_swab16 __arch_swab16
|
| static inline __u64 __arch_swab64(__u64 val)
| {
| union {
| struct { __u32 a,b; } s;
| __u64 u;
| } v, w;
| v.u = val;
| w.s.b = __arch_swab32(v.s.a);
| w.s.a = __arch_swab32(v.s.b);
| return w.u;
| }
| #define __arch_swab64 __arch_swab64
|
| #endif /* __ASM_SH_SWAB_H */
|
|
