34 lines
703 B
C
34 lines
703 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
|
|
*/
|
|
#ifndef __LOONGARCH_ASM_BITREV_H__
|
|
#define __LOONGARCH_ASM_BITREV_H__
|
|
|
|
#include <linux/swab.h>
|
|
|
|
static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
|
|
{
|
|
u32 ret;
|
|
|
|
asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(__swab32(x)));
|
|
return ret;
|
|
}
|
|
|
|
static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
|
|
{
|
|
u16 ret;
|
|
|
|
asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(__swab16(x)));
|
|
return ret;
|
|
}
|
|
|
|
static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
|
|
{
|
|
u8 ret;
|
|
|
|
asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(x));
|
|
return ret;
|
|
}
|
|
|
|
#endif /* __LOONGARCH_ASM_BITREV_H__ */
|