From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/nds32/include/asm/swab.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/nds32/include/asm/swab.h (limited to 'arch/nds32/include/asm/swab.h') diff --git a/arch/nds32/include/asm/swab.h b/arch/nds32/include/asm/swab.h new file mode 100644 index 000000000..362a466f2 --- /dev/null +++ b/arch/nds32/include/asm/swab.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef __NDS32_SWAB_H__ +#define __NDS32_SWAB_H__ + +#include +#include + +static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) +{ + __asm__("wsbh %0, %0\n\t" /* word swap byte within halfword */ + "rotri %0, %0, #16\n" + :"=r"(x) + :"0"(x)); + return x; +} + +static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) +{ + __asm__("wsbh %0, %0\n" /* word swap byte within halfword */ + :"=r"(x) + :"0"(x)); + return x; +} + +#define __arch_swab32(x) ___arch__swab32(x) +#define __arch_swab16(x) ___arch__swab16(x) + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +#define __BYTEORDER_HAS_U64__ +#define __SWAB_64_THRU_32__ +#endif + +#endif /* __NDS32_SWAB_H__ */ -- cgit v1.2.3