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/*-
* BSD LICENSE
*
* Copyright(c) 2015 Cavium Networks. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Cavium Networks nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTE_VECT_ARM_H_
#define _RTE_VECT_ARM_H_
#include "arm_neon.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef int32x4_t xmm_t;
#define XMM_SIZE (sizeof(xmm_t))
#define XMM_MASK (XMM_SIZE - 1)
typedef union rte_xmm {
xmm_t x;
uint8_t u8[XMM_SIZE / sizeof(uint8_t)];
uint16_t u16[XMM_SIZE / sizeof(uint16_t)];
uint32_t u32[XMM_SIZE / sizeof(uint32_t)];
uint64_t u64[XMM_SIZE / sizeof(uint64_t)];
double pd[XMM_SIZE / sizeof(double)];
} __attribute__((aligned(16))) rte_xmm_t;
#ifdef RTE_ARCH_ARM
/* NEON intrinsic vqtbl1q_u8() is not supported in ARMv7-A(AArch32) */
static __inline uint8x16_t
vqtbl1q_u8(uint8x16_t a, uint8x16_t b)
{
uint8_t i, pos;
rte_xmm_t rte_a, rte_b, rte_ret;
vst1q_u8(rte_a.u8, a);
vst1q_u8(rte_b.u8, b);
for (i = 0; i < 16; i++) {
pos = rte_b.u8[i];
if (pos < 16)
rte_ret.u8[i] = rte_a.u8[pos];
else
rte_ret.u8[i] = 0;
}
return vld1q_u8(rte_ret.u8);
}
#endif
#ifdef __cplusplus
}
#endif
#endif
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