58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* crc32c -- calculate and POSIX.2 checksum
|
|
Copyright (C) 92, 1995-1999 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#ifndef CRC32C_H
|
|
#define CRC32C_H
|
|
|
|
#include "../arch/arch.h"
|
|
|
|
extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
|
|
extern int crc32c_arm64_available;
|
|
extern int crc32c_intel_available;
|
|
|
|
#ifdef ARCH_HAVE_ARM64_CRC_CRYPTO
|
|
extern uint32_t crc32c_arm64(unsigned char const *, unsigned long);
|
|
extern void crc32c_arm64_probe(void);
|
|
#else
|
|
#define crc32c_arm64 crc32c_sw
|
|
static inline void crc32c_arm64_probe(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#ifdef ARCH_HAVE_SSE4_2
|
|
extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
|
|
extern void crc32c_intel_probe(void);
|
|
#else
|
|
#define crc32c_intel crc32c_sw
|
|
static inline void crc32c_intel_probe(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
|
|
{
|
|
if (crc32c_arm64_available)
|
|
return crc32c_arm64(buf, len);
|
|
|
|
if (crc32c_intel_available)
|
|
return crc32c_intel(buf, len);
|
|
|
|
return crc32c_sw(buf, len);
|
|
}
|
|
|
|
#endif
|