[mirror_ubuntu-focal-kernel.git] / arch / sparc / include / uapi / asm / swab.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _SPARC_SWAB_H
#define _SPARC_SWAB_H

#include <linux/types.h>
#include <asm/asi.h>

#if defined(__sparc__) && defined(__arch64__)
static inline __u16 __arch_swab16p(const __u16 *addr)
{
	__u16 ret;

	__asm__ __volatile__ ("lduha [%2] %3, %0"
			      : "=r" (ret)
			      : "m" (*addr), "r" (addr), "i" (ASI_PL));
	return ret;
}
#define __arch_swab16p __arch_swab16p

static inline __u32 __arch_swab32p(const __u32 *addr)
{
	__u32 ret;

	__asm__ __volatile__ ("lduwa [%2] %3, %0"
			      : "=r" (ret)
			      : "m" (*addr), "r" (addr), "i" (ASI_PL));
	return ret;
}
#define __arch_swab32p __arch_swab32p

static inline __u64 __arch_swab64p(const __u64 *addr)
{
	__u64 ret;

	__asm__ __volatile__ ("ldxa [%2] %3, %0"
			      : "=r" (ret)
			      : "m" (*addr), "r" (addr), "i" (ASI_PL));
	return ret;
}
#define __arch_swab64p __arch_swab64p

#else
#define __SWAB_64_THRU_32__
#endif /* defined(__sparc__) && defined(__arch64__) */

#endif /* _SPARC_SWAB_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
f4d2b145 HH	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
5a2b59d3	13	__asm__ __volatile__ ("lduha [%2] %3, %0"
f4d2b145	14	: "=r" (ret)
5a2b59d3	15	: "m" (*addr), "r" (addr), "i" (ASI_PL));
f4d2b145 HH	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
5a2b59d3	24	__asm__ __volatile__ ("lduwa [%2] %3, %0"
f4d2b145	25	: "=r" (ret)
5a2b59d3	26	: "m" (*addr), "r" (addr), "i" (ASI_PL));
f4d2b145 HH	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
5a2b59d3	35	__asm__ __volatile__ ("ldxa [%2] %3, %0"
f4d2b145	36	: "=r" (ret)
5a2b59d3	37	: "m" (*addr), "r" (addr), "i" (ASI_PL));
f4d2b145 HH	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 */