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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2015 Cavium Networks. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * * Neither the name of Cavium Networks nor the names of its | |
17 | * contributors may be used to endorse or promote products derived | |
18 | * from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | #ifndef _RTE_VECT_ARM_H_ | |
34 | #define _RTE_VECT_ARM_H_ | |
35 | ||
36 | #include <stdint.h> | |
37 | #include "arm_neon.h" | |
38 | ||
39 | #ifdef __cplusplus | |
40 | extern "C" { | |
41 | #endif | |
42 | ||
43 | typedef int32x4_t xmm_t; | |
44 | ||
45 | #define XMM_SIZE (sizeof(xmm_t)) | |
46 | #define XMM_MASK (XMM_SIZE - 1) | |
47 | ||
48 | typedef union rte_xmm { | |
49 | xmm_t x; | |
50 | uint8_t u8[XMM_SIZE / sizeof(uint8_t)]; | |
51 | uint16_t u16[XMM_SIZE / sizeof(uint16_t)]; | |
52 | uint32_t u32[XMM_SIZE / sizeof(uint32_t)]; | |
53 | uint64_t u64[XMM_SIZE / sizeof(uint64_t)]; | |
54 | double pd[XMM_SIZE / sizeof(double)]; | |
55 | } __attribute__((aligned(16))) rte_xmm_t; | |
56 | ||
57 | #ifdef RTE_ARCH_ARM | |
58 | /* NEON intrinsic vqtbl1q_u8() is not supported in ARMv7-A(AArch32) */ | |
59 | static __inline uint8x16_t | |
60 | vqtbl1q_u8(uint8x16_t a, uint8x16_t b) | |
61 | { | |
62 | uint8_t i, pos; | |
63 | rte_xmm_t rte_a, rte_b, rte_ret; | |
64 | ||
65 | vst1q_u8(rte_a.u8, a); | |
66 | vst1q_u8(rte_b.u8, b); | |
67 | ||
68 | for (i = 0; i < 16; i++) { | |
69 | pos = rte_b.u8[i]; | |
70 | if (pos < 16) | |
71 | rte_ret.u8[i] = rte_a.u8[pos]; | |
72 | else | |
73 | rte_ret.u8[i] = 0; | |
74 | } | |
75 | ||
76 | return vld1q_u8(rte_ret.u8); | |
77 | } | |
78 | #endif | |
79 | ||
80 | #ifdef __cplusplus | |
81 | } | |
82 | #endif | |
83 | ||
84 | #endif |