1 /* crc32c -- calculate and POSIX.2 checksum
2 Copyright (C) 92, 1995-1999 Free Software Foundation, Inc.
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)
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.
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,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
23 #include "../arch/arch.h"
24 #include "../lib/types.h"
26 extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
27 extern bool crc32c_arm64_available;
28 extern bool crc32c_intel_available;
30 #ifdef ARCH_HAVE_CRC_CRYPTO
31 extern uint32_t crc32c_arm64(unsigned char const *, unsigned long);
32 extern void crc32c_arm64_probe(void);
34 #define crc32c_arm64 crc32c_sw
35 static inline void crc32c_arm64_probe(void)
38 #endif /* ARCH_HAVE_CRC_CRYPTO */
40 #ifdef ARCH_HAVE_SSE4_2
41 extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
42 extern void crc32c_intel_probe(void);
44 #define crc32c_intel crc32c_sw
45 static inline void crc32c_intel_probe(void)
48 #endif /* ARCH_HAVE_SSE4_2 */
50 static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
52 if (crc32c_arm64_available)
53 return crc32c_arm64(buf, len);
55 if (crc32c_intel_available)
56 return crc32c_intel(buf, len);
58 return crc32c_sw(buf, len);