projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 11fdf7f2 TL |
1 | /* SPDX-License-Identifier: BSD-3-Clause |
| 2 | * Copyright(c) 2015 RehiveTech. All rights reserved. | |
| 7c673cae FG |
3 | */ |
| 4 | ||
| 5 | #ifndef _RTE_BYTEORDER_ARM_H_ | |
| 6 | #define _RTE_BYTEORDER_ARM_H_ | |
| 7 | ||
| 8 | #ifndef RTE_FORCE_INTRINSICS | |
| 9 | # error Platform must be built with CONFIG_RTE_FORCE_INTRINSICS | |
| 10 | #endif | |
| 11 | ||
| 12 | #ifdef __cplusplus | |
| 13 | extern "C" { | |
| 14 | #endif | |
| 15 | ||
| 16 | #include <stdint.h> | |
| 17 | #include <rte_common.h> | |
| 18 | #include "generic/rte_byteorder.h" | |
| 19 | ||
| 20 | /* fix missing __builtin_bswap16 for gcc older then 4.8 */ | |
| 21 | #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) | |
| 22 | ||
| 23 | static inline uint16_t rte_arch_bswap16(uint16_t _x) | |
| 24 | { | |
| 11fdf7f2 | 25 | uint16_t x = _x; |
| 7c673cae | 26 | |
| 11fdf7f2 | 27 | asm volatile ("rev16 %w0,%w1" |
| 7c673cae FG |
28 | : "=r" (x) |
| 29 | : "r" (x) | |
| 30 | ); | |
| 31 | return x; | |
| 32 | } | |
| 33 | ||
| 34 | #define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \ | |
| 35 | rte_constant_bswap16(x) : \ | |
| 36 | rte_arch_bswap16(x))) | |
| 37 | #endif | |
| 38 | ||
| 39 | /* ARM architecture is bi-endian (both big and little). */ | |
| 40 | #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN | |
| 41 | ||
| 42 | #define rte_cpu_to_le_16(x) (x) | |
| 43 | #define rte_cpu_to_le_32(x) (x) | |
| 44 | #define rte_cpu_to_le_64(x) (x) | |
| 45 | ||
| 46 | #define rte_cpu_to_be_16(x) rte_bswap16(x) | |
| 47 | #define rte_cpu_to_be_32(x) rte_bswap32(x) | |
| 48 | #define rte_cpu_to_be_64(x) rte_bswap64(x) | |
| 49 | ||
| 50 | #define rte_le_to_cpu_16(x) (x) | |
| 51 | #define rte_le_to_cpu_32(x) (x) | |
| 52 | #define rte_le_to_cpu_64(x) (x) | |
| 53 | ||
| 54 | #define rte_be_to_cpu_16(x) rte_bswap16(x) | |
| 55 | #define rte_be_to_cpu_32(x) rte_bswap32(x) | |
| 56 | #define rte_be_to_cpu_64(x) rte_bswap64(x) | |
| 57 | ||
| 58 | #else /* RTE_BIG_ENDIAN */ | |
| 59 | ||
| 60 | #define rte_cpu_to_le_16(x) rte_bswap16(x) | |
| 61 | #define rte_cpu_to_le_32(x) rte_bswap32(x) | |
| 62 | #define rte_cpu_to_le_64(x) rte_bswap64(x) | |
| 63 | ||
| 64 | #define rte_cpu_to_be_16(x) (x) | |
| 65 | #define rte_cpu_to_be_32(x) (x) | |
| 66 | #define rte_cpu_to_be_64(x) (x) | |
| 67 | ||
| 68 | #define rte_le_to_cpu_16(x) rte_bswap16(x) | |
| 69 | #define rte_le_to_cpu_32(x) rte_bswap32(x) | |
| 70 | #define rte_le_to_cpu_64(x) rte_bswap64(x) | |
| 71 | ||
| 72 | #define rte_be_to_cpu_16(x) (x) | |
| 73 | #define rte_be_to_cpu_32(x) (x) | |
| 74 | #define rte_be_to_cpu_64(x) (x) | |
| 75 | #endif | |
| 76 | ||
| 77 | #ifdef __cplusplus | |
| 78 | } | |
| 79 | #endif | |
| 80 | ||
| 81 | #endif /* _RTE_BYTEORDER_ARM_H_ */ |