Merge branch 'master' of https://github.com/ben-ihelputech/fio
[fio.git] / crc / crc32c.h
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1/* crc32c -- calculate and POSIX.2 checksum
2 Copyright (C) 92, 1995-1999 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
fa07eaa6 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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17
18#ifndef CRC32C_H
19#define CRC32C_H
20
3d2d14bc
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21#include <inttypes.h>
22
419484b9 23#include "../arch/arch.h"
97211af3 24#include "../lib/types.h"
419484b9 25
e3aaafc4 26extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
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27extern bool crc32c_arm64_available;
28extern bool crc32c_intel_available;
419484b9 29
58828d07 30#ifdef ARCH_HAVE_CRC_CRYPTO
214e2d56 31extern uint32_t crc32c_arm64(unsigned char const *, unsigned long);
32extern void crc32c_arm64_probe(void);
33#else
34#define crc32c_arm64 crc32c_sw
35static inline void crc32c_arm64_probe(void)
36{
37}
58828d07 38#endif /* ARCH_HAVE_CRC_CRYPTO */
214e2d56 39
2f68124f 40#ifdef ARCH_HAVE_SSE4_2
3845591f 41extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
e3aaafc4 42extern void crc32c_intel_probe(void);
419484b9 43#else
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44#define crc32c_intel crc32c_sw
45static inline void crc32c_intel_probe(void)
5d7c5d34 46{
5d7c5d34 47}
09c81e13 48#endif /* ARCH_HAVE_SSE4_2 */
bac39e0e 49
25dfa848 50static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
e3aaafc4 51{
847d544c 52 if (crc32c_arm64_available)
214e2d56 53 return crc32c_arm64(buf, len);
214e2d56 54
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55 if (crc32c_intel_available)
56 return crc32c_intel(buf, len);
57
58 return crc32c_sw(buf, len);
59}
60
bac39e0e 61#endif