1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * OpenRISC Linux
 4 *
 5 * Linux architectural port borrowing liberally from similar works of
 6 * others.  All original copyrights apply as per the original source
 7 * declaration.
 8 *
 9 * OpenRISC implementation:
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12 * et al.
13 */
14
15#ifndef __ASM_OPENRISC_UNALIGNED_H
16#define __ASM_OPENRISC_UNALIGNED_H
17
18/*
19 * This is copied from the generic implementation and the C-struct
20 * variant replaced with the memmove variant.  The GCC compiler
21 * for the OR32 arch optimizes too aggressively for the C-struct
22 * variant to work, so use the memmove variant instead.
23 *
24 * It may be worth considering implementing the unaligned access
25 * exception handler and allowing unaligned accesses (access_ok.h)...
26 * not sure if it would be much of a performance win without further
27 * investigation.
28 */
29#include <asm/byteorder.h>
30
31#if defined(__LITTLE_ENDIAN)
32# include <linux/unaligned/le_memmove.h>
33# include <linux/unaligned/be_byteshift.h>
34# include <linux/unaligned/generic.h>
35# define get_unaligned	__get_unaligned_le
36# define put_unaligned	__put_unaligned_le
37#elif defined(__BIG_ENDIAN)
38# include <linux/unaligned/be_memmove.h>
39# include <linux/unaligned/le_byteshift.h>
40# include <linux/unaligned/generic.h>
41# define get_unaligned	__get_unaligned_be
42# define put_unaligned	__put_unaligned_be
43#else
44# error need to define endianess
45#endif
46
47#endif /* __ASM_OPENRISC_UNALIGNED_H */