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bac39e0e JA |
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. */ |
bac39e0e JA |
17 | |
18 | #ifndef CRC32C_H | |
19 | #define CRC32C_H | |
20 | ||
3d2d14bc SW |
21 | #include <inttypes.h> |
22 | ||
419484b9 | 23 | #include "../arch/arch.h" |
97211af3 | 24 | #include "../lib/types.h" |
419484b9 | 25 | |
e3aaafc4 | 26 | extern uint32_t crc32c_sw(unsigned char const *, unsigned long); |
97211af3 JA |
27 | extern bool crc32c_arm64_available; |
28 | extern bool crc32c_intel_available; | |
419484b9 | 29 | |
58828d07 | 30 | #ifdef ARCH_HAVE_CRC_CRYPTO |
214e2d56 | 31 | extern uint32_t crc32c_arm64(unsigned char const *, unsigned long); |
32 | extern void crc32c_arm64_probe(void); | |
33 | #else | |
34 | #define crc32c_arm64 crc32c_sw | |
35 | static 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 | 41 | extern uint32_t crc32c_intel(unsigned char const *, unsigned long); |
e3aaafc4 | 42 | extern void crc32c_intel_probe(void); |
419484b9 | 43 | #else |
e3aaafc4 JA |
44 | #define crc32c_intel crc32c_sw |
45 | static inline void crc32c_intel_probe(void) | |
5d7c5d34 | 46 | { |
5d7c5d34 | 47 | } |
09c81e13 | 48 | #endif /* ARCH_HAVE_SSE4_2 */ |
bac39e0e | 49 | |
25dfa848 | 50 | static 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 | |
e3aaafc4 JA |
55 | if (crc32c_intel_available) |
56 | return crc32c_intel(buf, len); | |
57 | ||
58 | return crc32c_sw(buf, len); | |
59 | } | |
60 | ||
bac39e0e | 61 | #endif |