| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 2 | #ifndef __ASM_GENERIC_UNALIGNED_H |
| 3 | #define __ASM_GENERIC_UNALIGNED_H |
| 4 | |
| 5 | /* |
| 6 | * This is the most generic implementation of unaligned accesses |
| 7 | * and should work almost anywhere. |
| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 8 | */ |
| 9 | #include <asm/byteorder.h> |
| 10 | |
| Ard Biesheuvel | 0567f5f | 2014-05-01 17:49:33 +0200 | [diff] [blame] | 11 | /* Set by the arch if it can handle unaligned accesses in hardware. */ |
| 12 | #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 13 | # include <linux/unaligned/access_ok.h> |
| 14 | #endif |
| 15 | |
| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 16 | #if defined(__LITTLE_ENDIAN) |
| Ard Biesheuvel | 0567f5f | 2014-05-01 17:49:33 +0200 | [diff] [blame] | 17 | # ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 18 | # include <linux/unaligned/le_struct.h> |
| 19 | # include <linux/unaligned/be_byteshift.h> |
| 20 | # endif |
| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 21 | # include <linux/unaligned/generic.h> |
| 22 | # define get_unaligned __get_unaligned_le |
| 23 | # define put_unaligned __put_unaligned_le |
| 24 | #elif defined(__BIG_ENDIAN) |
| Ard Biesheuvel | 0567f5f | 2014-05-01 17:49:33 +0200 | [diff] [blame] | 25 | # ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 26 | # include <linux/unaligned/be_struct.h> |
| 27 | # include <linux/unaligned/le_byteshift.h> |
| 28 | # endif |
| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 29 | # include <linux/unaligned/generic.h> |
| 30 | # define get_unaligned __get_unaligned_be |
| 31 | # define put_unaligned __put_unaligned_be |
| 32 | #else |
| 33 | # error need to define endianess |
| 34 | #endif |
| 35 | |
| 36 | #endif /* __ASM_GENERIC_UNALIGNED_H */ |