xref: /dpdk/lib/table/rte_table_hash_func_arm64.h (revision 99a2dd955fba6e4cc23b77d590a033650ced9c45) 
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2017-2018 Linaro Limited
3  */
4 
5 #ifndef __INCLUDE_RTE_TABLE_HASH_FUNC_ARM64_H__
6 #define __INCLUDE_RTE_TABLE_HASH_FUNC_ARM64_H__
7 
8 #define _CRC32CX(crc, val)	\
9 	__asm__("crc32cx %w[c], %w[c], %x[v]":[c] "+r" (crc):[v] "r" (val))
10 
11 static inline uint64_t
rte_crc32_u64(uint64_t crc,uint64_t v)12 rte_crc32_u64(uint64_t crc, uint64_t v)
13 {
14 	uint32_t crc32 = crc;
15 
16 	_CRC32CX(crc32, v);
17 
18 	return crc32;
19 }
20 
21 #endif
22